--- /dev/null
+
+Known bugs in libpng version 1.2.4
+
+1. April 22, 2001: pnggccrd.c has been reported to crash on NetBSD when
+ reading interlaced PNG files, when assembler code is enabled but running
+ on a non-MMX i386 platform.
+
+ STATUS: Under investigation. The change to pnggccrd.c in libpng-1.2.1
+ fixed a problem under FreeBSD but not the problem with NetBSD, which
+ still fails as of libpng-1.2.2rc1.
+
--- /dev/null
+
+This copy of the libpng notices is provided for your convenience. In case of
+any discrepancy between this copy and the notices in the file png.h that is
+included in the libpng distribution, the latter shall prevail.
+
+COPYRIGHT NOTICE, DISCLAIMER, and LICENSE:
+
+If you modify libpng you may insert additional notices immediately following
+this sentence.
+
+libpng versions 1.0.7, July 1, 2000, through 1.2.4, July 8, 2002, are
+Copyright (c) 2000-2002 Glenn Randers-Pehrson
+and are distributed according to the same disclaimer and license as libpng-1.0.6
+with the following individuals added to the list of Contributing Authors
+
+ Simon-Pierre Cadieux
+ Eric S. Raymond
+ Gilles Vollant
+
+and with the following additions to the disclaimer:
+
+ There is no warranty against interference with your enjoyment of the
+ library or against infringement. There is no warranty that our
+ efforts or the library will fulfill any of your particular purposes
+ or needs. This library is provided with all faults, and the entire
+ risk of satisfactory quality, performance, accuracy, and effort is with
+ the user.
+
+libpng versions 0.97, January 1998, through 1.0.6, March 20, 2000, are
+Copyright (c) 1998, 1999 Glenn Randers-Pehrson, and are
+distributed according to the same disclaimer and license as libpng-0.96,
+with the following individuals added to the list of Contributing Authors:
+
+ Tom Lane
+ Glenn Randers-Pehrson
+ Willem van Schaik
+
+libpng versions 0.89, June 1996, through 0.96, May 1997, are
+Copyright (c) 1996, 1997 Andreas Dilger
+Distributed according to the same disclaimer and license as libpng-0.88,
+with the following individuals added to the list of Contributing Authors:
+
+ John Bowler
+ Kevin Bracey
+ Sam Bushell
+ Magnus Holmgren
+ Greg Roelofs
+ Tom Tanner
+
+libpng versions 0.5, May 1995, through 0.88, January 1996, are
+Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
+
+For the purposes of this copyright and license, "Contributing Authors"
+is defined as the following set of individuals:
+
+ Andreas Dilger
+ Dave Martindale
+ Guy Eric Schalnat
+ Paul Schmidt
+ Tim Wegner
+
+The PNG Reference Library is supplied "AS IS". The Contributing Authors
+and Group 42, Inc. disclaim all warranties, expressed or implied,
+including, without limitation, the warranties of merchantability and of
+fitness for any purpose. The Contributing Authors and Group 42, Inc.
+assume no liability for direct, indirect, incidental, special, exemplary,
+or consequential damages, which may result from the use of the PNG
+Reference Library, even if advised of the possibility of such damage.
+
+Permission is hereby granted to use, copy, modify, and distribute this
+source code, or portions hereof, for any purpose, without fee, subject
+to the following restrictions:
+
+1. The origin of this source code must not be misrepresented.
+
+2. Altered versions must be plainly marked as such and must not
+ be misrepresented as being the original source.
+
+3. This Copyright notice may not be removed or altered from any
+ source or altered source distribution.
+
+The Contributing Authors and Group 42, Inc. specifically permit, without
+fee, and encourage the use of this source code as a component to
+supporting the PNG file format in commercial products. If you use this
+source code in a product, acknowledgment is not required but would be
+appreciated.
+
+
+A "png_get_copyright" function is available, for convenient use in "about"
+boxes and the like:
+
+ printf("%s",png_get_copyright(NULL));
+
+Also, the PNG logo (in PNG format, of course) is supplied in the
+files "pngbar.png" and "pngbar.jpg (88x31) and "pngnow.png" (98x31).
+
+Libpng is OSI Certified Open Source Software. OSI Certified Open Source is a
+certification mark of the Open Source Initiative.
+
+Glenn Randers-Pehrson
+randeg@alum.rpi.edu
+July 8, 2002
--- /dev/null
+echo "
+ There is no \"configure\" script for Libpng-1.2.4. Instead, please
+ copy the appropriate makefile for your system from the \"scripts\"
+ directory. Read the INSTALL file for more details.
+"
+
--- /dev/null
+/* pngasmrd.h - assembler version of utilities to read a PNG file
+ *
+ * libpng 1.2.4 - July 8, 2002
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 2002 Glenn Randers-Pehrson
+ *
+ */
+
+/* This file is obsolete in libpng-1.0.9 and later; its contents now appear
+ * at the end of pngconf.h.
+ */
--- /dev/null
+/* pnggccrd.c - mixed C/assembler version of utilities to read a PNG file
+ *
+ * For Intel x86 CPU (Pentium-MMX or later) and GNU C compiler.
+ *
+ * See http://www.intel.com/drg/pentiumII/appnotes/916/916.htm
+ * and http://www.intel.com/drg/pentiumII/appnotes/923/923.htm
+ * for Intel's performance analysis of the MMX vs. non-MMX code.
+ *
+ * libpng version 1.2.4 - July 8, 2002
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1998-2002 Glenn Randers-Pehrson
+ * Copyright (c) 1998, Intel Corporation
+ *
+ * Based on MSVC code contributed by Nirav Chhatrapati, Intel Corp., 1998.
+ * Interface to libpng contributed by Gilles Vollant, 1999.
+ * GNU C port by Greg Roelofs, 1999-2001.
+ *
+ * Lines 2350-4300 converted in place with intel2gas 1.3.1:
+ *
+ * intel2gas -mdI pnggccrd.c.partially-msvc -o pnggccrd.c
+ *
+ * and then cleaned up by hand. See http://hermes.terminal.at/intel2gas/ .
+ *
+ * NOTE: A sufficiently recent version of GNU as (or as.exe under DOS/Windows)
+ * is required to assemble the newer MMX instructions such as movq.
+ * For djgpp, see
+ *
+ * ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2gnu/bnu281b.zip
+ *
+ * (or a later version in the same directory). For Linux, check your
+ * distribution's web site(s) or try these links:
+ *
+ * http://rufus.w3.org/linux/RPM/binutils.html
+ * http://www.debian.org/Packages/stable/devel/binutils.html
+ * ftp://ftp.slackware.com/pub/linux/slackware/slackware/slakware/d1/
+ * binutils.tgz
+ *
+ * For other platforms, see the main GNU site:
+ *
+ * ftp://ftp.gnu.org/pub/gnu/binutils/
+ *
+ * Version 2.5.2l.15 is definitely too old...
+ */
+
+/*
+ * TEMPORARY PORTING NOTES AND CHANGELOG (mostly by Greg Roelofs)
+ * =====================================
+ *
+ * 19991006:
+ * - fixed sign error in post-MMX cleanup code (16- & 32-bit cases)
+ *
+ * 19991007:
+ * - additional optimizations (possible or definite):
+ * x [DONE] write MMX code for 64-bit case (pixel_bytes == 8) [not tested]
+ * - write MMX code for 48-bit case (pixel_bytes == 6)
+ * - figure out what's up with 24-bit case (pixel_bytes == 3):
+ * why subtract 8 from width_mmx in the pass 4/5 case?
+ * (only width_mmx case) (near line 1606)
+ * x [DONE] replace pixel_bytes within each block with the true
+ * constant value (or are compilers smart enough to do that?)
+ * - rewrite all MMX interlacing code so it's aligned with
+ * the *beginning* of the row buffer, not the end. This
+ * would not only allow one to eliminate half of the memory
+ * writes for odd passes (that is, pass == odd), it may also
+ * eliminate some unaligned-data-access exceptions (assuming
+ * there's a penalty for not aligning 64-bit accesses on
+ * 64-bit boundaries). The only catch is that the "leftover"
+ * pixel(s) at the end of the row would have to be saved,
+ * but there are enough unused MMX registers in every case,
+ * so this is not a problem. A further benefit is that the
+ * post-MMX cleanup code (C code) in at least some of the
+ * cases could be done within the assembler block.
+ * x [DONE] the "v3 v2 v1 v0 v7 v6 v5 v4" comments are confusing,
+ * inconsistent, and don't match the MMX Programmer's Reference
+ * Manual conventions anyway. They should be changed to
+ * "b7 b6 b5 b4 b3 b2 b1 b0," where b0 indicates the byte that
+ * was lowest in memory (e.g., corresponding to a left pixel)
+ * and b7 is the byte that was highest (e.g., a right pixel).
+ *
+ * 19991016:
+ * - Brennan's Guide notwithstanding, gcc under Linux does *not*
+ * want globals prefixed by underscores when referencing them--
+ * i.e., if the variable is const4, then refer to it as const4,
+ * not _const4. This seems to be a djgpp-specific requirement.
+ * Also, such variables apparently *must* be declared outside
+ * of functions; neither static nor automatic variables work if
+ * defined within the scope of a single function, but both
+ * static and truly global (multi-module) variables work fine.
+ *
+ * 19991023:
+ * - fixed png_combine_row() non-MMX replication bug (odd passes only?)
+ * - switched from string-concatenation-with-macros to cleaner method of
+ * renaming global variables for djgpp--i.e., always use prefixes in
+ * inlined assembler code (== strings) and conditionally rename the
+ * variables, not the other way around. Hence _const4, _mask8_0, etc.
+ *
+ * 19991024:
+ * - fixed mmxsupport()/png_do_read_interlace() first-row bug
+ * This one was severely weird: even though mmxsupport() doesn't touch
+ * ebx (where "row" pointer was stored), it nevertheless managed to zero
+ * the register (even in static/non-fPIC code--see below), which in turn
+ * caused png_do_read_interlace() to return prematurely on the first row of
+ * interlaced images (i.e., without expanding the interlaced pixels).
+ * Inspection of the generated assembly code didn't turn up any clues,
+ * although it did point at a minor optimization (i.e., get rid of
+ * mmx_supported_local variable and just use eax). Possibly the CPUID
+ * instruction is more destructive than it looks? (Not yet checked.)
+ * - "info gcc" was next to useless, so compared fPIC and non-fPIC assembly
+ * listings... Apparently register spillage has to do with ebx, since
+ * it's used to index the global offset table. Commenting it out of the
+ * input-reg lists in png_combine_row() eliminated compiler barfage, so
+ * ifdef'd with __PIC__ macro: if defined, use a global for unmask
+ *
+ * 19991107:
+ * - verified CPUID clobberage: 12-char string constant ("GenuineIntel",
+ * "AuthenticAMD", etc.) placed in ebx:ecx:edx. Still need to polish.
+ *
+ * 19991120:
+ * - made "diff" variable (now "_dif") global to simplify conversion of
+ * filtering routines (running out of regs, sigh). "diff" is still used
+ * in interlacing routines, however.
+ * - fixed up both versions of mmxsupport() (ORIG_THAT_USED_TO_CLOBBER_EBX
+ * macro determines which is used); original not yet tested.
+ *
+ * 20000213:
+ * - when compiling with gcc, be sure to use -fomit-frame-pointer
+ *
+ * 20000319:
+ * - fixed a register-name typo in png_do_read_interlace(), default (MMX) case,
+ * pass == 4 or 5, that caused visible corruption of interlaced images
+ *
+ * 20000623:
+ * - Various problems were reported with gcc 2.95.2 in the Cygwin environment,
+ * many of the form "forbidden register 0 (ax) was spilled for class AREG."
+ * This is explained at http://gcc.gnu.org/fom_serv/cache/23.html, and
+ * Chuck Wilson supplied a patch involving dummy output registers. See
+ * http://sourceforge.net/bugs/?func=detailbug&bug_id=108741&group_id=5624
+ * for the original (anonymous) SourceForge bug report.
+ *
+ * 20000706:
+ * - Chuck Wilson passed along these remaining gcc 2.95.2 errors:
+ * pnggccrd.c: In function `png_combine_row':
+ * pnggccrd.c:525: more than 10 operands in `asm'
+ * pnggccrd.c:669: more than 10 operands in `asm'
+ * pnggccrd.c:828: more than 10 operands in `asm'
+ * pnggccrd.c:994: more than 10 operands in `asm'
+ * pnggccrd.c:1177: more than 10 operands in `asm'
+ * They are all the same problem and can be worked around by using the
+ * global _unmask variable unconditionally, not just in the -fPIC case.
+ * Reportedly earlier versions of gcc also have the problem with more than
+ * 10 operands; they just don't report it. Much strangeness ensues, etc.
+ *
+ * 20000729:
+ * - enabled png_read_filter_row_mmx_up() (shortest remaining unconverted
+ * MMX routine); began converting png_read_filter_row_mmx_sub()
+ * - to finish remaining sections:
+ * - clean up indentation and comments
+ * - preload local variables
+ * - add output and input regs (order of former determines numerical
+ * mapping of latter)
+ * - avoid all usage of ebx (including bx, bh, bl) register [20000823]
+ * - remove "$" from addressing of Shift and Mask variables [20000823]
+ *
+ * 20000731:
+ * - global union vars causing segfaults in png_read_filter_row_mmx_sub()?
+ *
+ * 20000822:
+ * - ARGH, stupid png_read_filter_row_mmx_sub() segfault only happens with
+ * shared-library (-fPIC) version! Code works just fine as part of static
+ * library. Damn damn damn damn damn, should have tested that sooner.
+ * ebx is getting clobbered again (explicitly this time); need to save it
+ * on stack or rewrite asm code to avoid using it altogether. Blargh!
+ *
+ * 20000823:
+ * - first section was trickiest; all remaining sections have ebx -> edx now.
+ * (-fPIC works again.) Also added missing underscores to various Shift*
+ * and *Mask* globals and got rid of leading "$" signs.
+ *
+ * 20000826:
+ * - added visual separators to help navigate microscopic printed copies
+ * (http://pobox.com/~newt/code/gpr-latest.zip, mode 10); started working
+ * on png_read_filter_row_mmx_avg()
+ *
+ * 20000828:
+ * - finished png_read_filter_row_mmx_avg(): only Paeth left! (930 lines...)
+ * What the hell, did png_read_filter_row_mmx_paeth(), too. Comments not
+ * cleaned up/shortened in either routine, but functionality is complete
+ * and seems to be working fine.
+ *
+ * 20000829:
+ * - ahhh, figured out last(?) bit of gcc/gas asm-fu: if register is listed
+ * as an input reg (with dummy output variables, etc.), then it *cannot*
+ * also appear in the clobber list or gcc 2.95.2 will barf. The solution
+ * is simple enough...
+ *
+ * 20000914:
+ * - bug in png_read_filter_row_mmx_avg(): 16-bit grayscale not handled
+ * correctly (but 48-bit RGB just fine)
+ *
+ * 20000916:
+ * - fixed bug in png_read_filter_row_mmx_avg(), bpp == 2 case; three errors:
+ * - "_ShiftBpp.use = 24;" should have been "_ShiftBpp.use = 16;"
+ * - "_ShiftRem.use = 40;" should have been "_ShiftRem.use = 48;"
+ * - "psllq _ShiftRem, %%mm2" should have been "psrlq _ShiftRem, %%mm2"
+ *
+ * 20010101:
+ * - added new png_init_mmx_flags() function (here only because it needs to
+ * call mmxsupport(), which should probably become global png_mmxsupport());
+ * modified other MMX routines to run conditionally (png_ptr->asm_flags)
+ *
+ * 20010103:
+ * - renamed mmxsupport() to png_mmx_support(), with auto-set of mmx_supported,
+ * and made it public; moved png_init_mmx_flags() to png.c as internal func
+ *
+ * 20010104:
+ * - removed dependency on png_read_filter_row_c() (C code already duplicated
+ * within MMX version of png_read_filter_row()) so no longer necessary to
+ * compile it into pngrutil.o
+ *
+ * 20010310:
+ * - fixed buffer-overrun bug in png_combine_row() C code (non-MMX)
+ *
+ * 20020304:
+ * - eliminated incorrect use of width_mmx in pixel_bytes == 8 case
+ *
+ * STILL TO DO:
+ * - test png_do_read_interlace() 64-bit case (pixel_bytes == 8)
+ * - write MMX code for 48-bit case (pixel_bytes == 6)
+ * - figure out what's up with 24-bit case (pixel_bytes == 3):
+ * why subtract 8 from width_mmx in the pass 4/5 case?
+ * (only width_mmx case) (near line 1606)
+ * - rewrite all MMX interlacing code so it's aligned with beginning
+ * of the row buffer, not the end (see 19991007 for details)
+ * x pick one version of mmxsupport() and get rid of the other
+ * - add error messages to any remaining bogus default cases
+ * - enable pixel_depth == 8 cases in png_read_filter_row()? (test speed)
+ * x add support for runtime enable/disable/query of various MMX routines
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+#if defined(PNG_USE_PNGGCCRD)
+
+int PNGAPI png_mmx_support(void);
+
+#ifdef PNG_USE_LOCAL_ARRAYS
+static const int FARDATA png_pass_start[7] = {0, 4, 0, 2, 0, 1, 0};
+static const int FARDATA png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+static const int FARDATA png_pass_width[7] = {8, 4, 4, 2, 2, 1, 1};
+#endif
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+/* djgpp, Win32, and Cygwin add their own underscores to global variables,
+ * so define them without: */
+#if defined(__DJGPP__) || defined(WIN32) || defined(__CYGWIN__)
+# define _mmx_supported mmx_supported
+# define _const4 const4
+# define _const6 const6
+# define _mask8_0 mask8_0
+# define _mask16_1 mask16_1
+# define _mask16_0 mask16_0
+# define _mask24_2 mask24_2
+# define _mask24_1 mask24_1
+# define _mask24_0 mask24_0
+# define _mask32_3 mask32_3
+# define _mask32_2 mask32_2
+# define _mask32_1 mask32_1
+# define _mask32_0 mask32_0
+# define _mask48_5 mask48_5
+# define _mask48_4 mask48_4
+# define _mask48_3 mask48_3
+# define _mask48_2 mask48_2
+# define _mask48_1 mask48_1
+# define _mask48_0 mask48_0
+# define _LBCarryMask LBCarryMask
+# define _HBClearMask HBClearMask
+# define _ActiveMask ActiveMask
+# define _ActiveMask2 ActiveMask2
+# define _ActiveMaskEnd ActiveMaskEnd
+# define _ShiftBpp ShiftBpp
+# define _ShiftRem ShiftRem
+#ifdef PNG_THREAD_UNSAFE_OK
+# define _unmask unmask
+# define _FullLength FullLength
+# define _MMXLength MMXLength
+# define _dif dif
+# define _patemp patemp
+# define _pbtemp pbtemp
+# define _pctemp pctemp
+#endif
+#endif
+
+
+/* These constants are used in the inlined MMX assembly code.
+ Ignore gcc's "At top level: defined but not used" warnings. */
+
+/* GRR 20000706: originally _unmask was needed only when compiling with -fPIC,
+ * since that case uses the %ebx register for indexing the Global Offset Table
+ * and there were no other registers available. But gcc 2.95 and later emit
+ * "more than 10 operands in `asm'" errors when %ebx is used to preload unmask
+ * in the non-PIC case, so we'll just use the global unconditionally now.
+ */
+#ifdef PNG_THREAD_UNSAFE_OK
+static int _unmask;
+#endif
+
+static unsigned long long _mask8_0 = 0x0102040810204080LL;
+
+static unsigned long long _mask16_1 = 0x0101020204040808LL;
+static unsigned long long _mask16_0 = 0x1010202040408080LL;
+
+static unsigned long long _mask24_2 = 0x0101010202020404LL;
+static unsigned long long _mask24_1 = 0x0408080810101020LL;
+static unsigned long long _mask24_0 = 0x2020404040808080LL;
+
+static unsigned long long _mask32_3 = 0x0101010102020202LL;
+static unsigned long long _mask32_2 = 0x0404040408080808LL;
+static unsigned long long _mask32_1 = 0x1010101020202020LL;
+static unsigned long long _mask32_0 = 0x4040404080808080LL;
+
+static unsigned long long _mask48_5 = 0x0101010101010202LL;
+static unsigned long long _mask48_4 = 0x0202020204040404LL;
+static unsigned long long _mask48_3 = 0x0404080808080808LL;
+static unsigned long long _mask48_2 = 0x1010101010102020LL;
+static unsigned long long _mask48_1 = 0x2020202040404040LL;
+static unsigned long long _mask48_0 = 0x4040808080808080LL;
+
+static unsigned long long _const4 = 0x0000000000FFFFFFLL;
+//static unsigned long long _const5 = 0x000000FFFFFF0000LL; // NOT USED
+static unsigned long long _const6 = 0x00000000000000FFLL;
+
+// These are used in the row-filter routines and should/would be local
+// variables if not for gcc addressing limitations.
+// WARNING: Their presence probably defeats the thread safety of libpng.
+
+#ifdef PNG_THREAD_UNSAFE_OK
+static png_uint_32 _FullLength;
+static png_uint_32 _MMXLength;
+static int _dif;
+static int _patemp; // temp variables for Paeth routine
+static int _pbtemp;
+static int _pctemp;
+#endif
+
+void /* PRIVATE */
+png_squelch_warnings(void)
+{
+#ifdef PNG_THREAD_UNSAFE_OK
+ _dif = _dif;
+ _patemp = _patemp;
+ _pbtemp = _pbtemp;
+ _pctemp = _pctemp;
+ _MMXLength = _MMXLength;
+#endif
+ _const4 = _const4;
+ _const6 = _const6;
+ _mask8_0 = _mask8_0;
+ _mask16_1 = _mask16_1;
+ _mask16_0 = _mask16_0;
+ _mask24_2 = _mask24_2;
+ _mask24_1 = _mask24_1;
+ _mask24_0 = _mask24_0;
+ _mask32_3 = _mask32_3;
+ _mask32_2 = _mask32_2;
+ _mask32_1 = _mask32_1;
+ _mask32_0 = _mask32_0;
+ _mask48_5 = _mask48_5;
+ _mask48_4 = _mask48_4;
+ _mask48_3 = _mask48_3;
+ _mask48_2 = _mask48_2;
+ _mask48_1 = _mask48_1;
+ _mask48_0 = _mask48_0;
+}
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+
+
+static int _mmx_supported = 2;
+
+/*===========================================================================*/
+/* */
+/* P N G _ C O M B I N E _ R O W */
+/* */
+/*===========================================================================*/
+
+#if defined(PNG_HAVE_ASSEMBLER_COMBINE_ROW)
+
+#define BPP2 2
+#define BPP3 3 /* bytes per pixel (a.k.a. pixel_bytes) */
+#define BPP4 4
+#define BPP6 6 /* (defined only to help avoid cut-and-paste errors) */
+#define BPP8 8
+
+/* Combines the row recently read in with the previous row.
+ This routine takes care of alpha and transparency if requested.
+ This routine also handles the two methods of progressive display
+ of interlaced images, depending on the mask value.
+ The mask value describes which pixels are to be combined with
+ the row. The pattern always repeats every 8 pixels, so just 8
+ bits are needed. A one indicates the pixel is to be combined; a
+ zero indicates the pixel is to be skipped. This is in addition
+ to any alpha or transparency value associated with the pixel.
+ If you want all pixels to be combined, pass 0xff (255) in mask. */
+
+/* Use this routine for the x86 platform - it uses a faster MMX routine
+ if the machine supports MMX. */
+
+void /* PRIVATE */
+png_combine_row(png_structp png_ptr, png_bytep row, int mask)
+{
+ png_debug(1, "in png_combine_row (pnggccrd.c)\n");
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+ if (_mmx_supported == 2) {
+ /* this should have happened in png_init_mmx_flags() already */
+ png_warning(png_ptr, "asm_flags may not have been initialized");
+ png_mmx_support();
+ }
+#endif
+
+ if (mask == 0xff)
+ {
+ png_debug(2,"mask == 0xff: doing single png_memcpy()\n");
+ png_memcpy(row, png_ptr->row_buf + 1,
+ (png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3));
+ }
+ else /* (png_combine_row() is never called with mask == 0) */
+ {
+ switch (png_ptr->row_info.pixel_depth)
+ {
+ case 1: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep sp;
+ png_bytep dp;
+ int s_inc, s_start, s_end;
+ int m;
+ int shift;
+ png_uint_32 i;
+
+ sp = png_ptr->row_buf + 1;
+ dp = row;
+ m = 0x80;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ {
+ s_start = 0;
+ s_end = 7;
+ s_inc = 1;
+ }
+ else
+#endif
+ {
+ s_start = 7;
+ s_end = 0;
+ s_inc = -1;
+ }
+
+ shift = s_start;
+
+ for (i = 0; i < png_ptr->width; i++)
+ {
+ if (m & mask)
+ {
+ int value;
+
+ value = (*sp >> shift) & 0x1;
+ *dp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff);
+ *dp |= (png_byte)(value << shift);
+ }
+
+ if (shift == s_end)
+ {
+ shift = s_start;
+ sp++;
+ dp++;
+ }
+ else
+ shift += s_inc;
+
+ if (m == 1)
+ m = 0x80;
+ else
+ m >>= 1;
+ }
+ break;
+ }
+
+ case 2: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep sp;
+ png_bytep dp;
+ int s_start, s_end, s_inc;
+ int m;
+ int shift;
+ png_uint_32 i;
+ int value;
+
+ sp = png_ptr->row_buf + 1;
+ dp = row;
+ m = 0x80;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ {
+ s_start = 0;
+ s_end = 6;
+ s_inc = 2;
+ }
+ else
+#endif
+ {
+ s_start = 6;
+ s_end = 0;
+ s_inc = -2;
+ }
+
+ shift = s_start;
+
+ for (i = 0; i < png_ptr->width; i++)
+ {
+ if (m & mask)
+ {
+ value = (*sp >> shift) & 0x3;
+ *dp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff);
+ *dp |= (png_byte)(value << shift);
+ }
+
+ if (shift == s_end)
+ {
+ shift = s_start;
+ sp++;
+ dp++;
+ }
+ else
+ shift += s_inc;
+ if (m == 1)
+ m = 0x80;
+ else
+ m >>= 1;
+ }
+ break;
+ }
+
+ case 4: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep sp;
+ png_bytep dp;
+ int s_start, s_end, s_inc;
+ int m;
+ int shift;
+ png_uint_32 i;
+ int value;
+
+ sp = png_ptr->row_buf + 1;
+ dp = row;
+ m = 0x80;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ {
+ s_start = 0;
+ s_end = 4;
+ s_inc = 4;
+ }
+ else
+#endif
+ {
+ s_start = 4;
+ s_end = 0;
+ s_inc = -4;
+ }
+ shift = s_start;
+
+ for (i = 0; i < png_ptr->width; i++)
+ {
+ if (m & mask)
+ {
+ value = (*sp >> shift) & 0xf;
+ *dp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff);
+ *dp |= (png_byte)(value << shift);
+ }
+
+ if (shift == s_end)
+ {
+ shift = s_start;
+ sp++;
+ dp++;
+ }
+ else
+ shift += s_inc;
+ if (m == 1)
+ m = 0x80;
+ else
+ m >>= 1;
+ }
+ break;
+ }
+
+ case 8: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && _mmx_supported */ )
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_uint_32 len;
+ int diff;
+ int dummy_value_a; // fix 'forbidden register spilled' error
+ int dummy_value_d;
+ int dummy_value_c;
+ int dummy_value_S;
+ int dummy_value_D;
+ _unmask = ~mask; // global variable for -fPIC version
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+ len = png_ptr->width &~7; // reduce to multiple of 8
+ diff = (int) (png_ptr->width & 7); // amount lost
+
+ __asm__ __volatile__ (
+ "movd _unmask, %%mm7 \n\t" // load bit pattern
+ "psubb %%mm6, %%mm6 \n\t" // zero mm6
+ "punpcklbw %%mm7, %%mm7 \n\t"
+ "punpcklwd %%mm7, %%mm7 \n\t"
+ "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks
+
+ "movq _mask8_0, %%mm0 \n\t"
+ "pand %%mm7, %%mm0 \n\t" // nonzero if keep byte
+ "pcmpeqb %%mm6, %%mm0 \n\t" // zeros->1s, v versa
+
+// preload "movl len, %%ecx \n\t" // load length of line
+// preload "movl srcptr, %%esi \n\t" // load source
+// preload "movl dstptr, %%edi \n\t" // load dest
+
+ "cmpl $0, %%ecx \n\t" // len == 0 ?
+ "je mainloop8end \n\t"
+
+ "mainloop8: \n\t"
+ "movq (%%esi), %%mm4 \n\t" // *srcptr
+ "pand %%mm0, %%mm4 \n\t"
+ "movq %%mm0, %%mm6 \n\t"
+ "pandn (%%edi), %%mm6 \n\t" // *dstptr
+ "por %%mm6, %%mm4 \n\t"
+ "movq %%mm4, (%%edi) \n\t"
+ "addl $8, %%esi \n\t" // inc by 8 bytes processed
+ "addl $8, %%edi \n\t"
+ "subl $8, %%ecx \n\t" // dec by 8 pixels processed
+ "ja mainloop8 \n\t"
+
+ "mainloop8end: \n\t"
+// preload "movl diff, %%ecx \n\t" // (diff is in eax)
+ "movl %%eax, %%ecx \n\t"
+ "cmpl $0, %%ecx \n\t"
+ "jz end8 \n\t"
+// preload "movl mask, %%edx \n\t"
+ "sall $24, %%edx \n\t" // make low byte, high byte
+
+ "secondloop8: \n\t"
+ "sall %%edx \n\t" // move high bit to CF
+ "jnc skip8 \n\t" // if CF = 0
+ "movb (%%esi), %%al \n\t"
+ "movb %%al, (%%edi) \n\t"
+
+ "skip8: \n\t"
+ "incl %%esi \n\t"
+ "incl %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz secondloop8 \n\t"
+
+ "end8: \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=a" (dummy_value_a), // output regs (dummy)
+ "=d" (dummy_value_d),
+ "=c" (dummy_value_c),
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "3" (srcptr), // esi // input regs
+ "4" (dstptr), // edi
+ "0" (diff), // eax
+// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
+ "2" (len), // ecx
+ "1" (mask) // edx
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm4", "%mm6", "%mm7" // clobber list
+#endif
+ );
+ }
+ else /* mmx _not supported - Use modified C routine */
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ register png_uint_32 i;
+ png_uint_32 initial_val = png_pass_start[png_ptr->pass];
+ /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */
+ register int stride = png_pass_inc[png_ptr->pass];
+ /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */
+ register int rep_bytes = png_pass_width[png_ptr->pass];
+ /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */
+ png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */
+ int diff = (int) (png_ptr->width & 7); /* amount lost */
+ register png_uint_32 final_val = len; /* GRR bugfix */
+
+ srcptr = png_ptr->row_buf + 1 + initial_val;
+ dstptr = row + initial_val;
+
+ for (i = initial_val; i < final_val; i += stride)
+ {
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ if (diff) /* number of leftover pixels: 3 for pngtest */
+ {
+ final_val+=diff /* *BPP1 */ ;
+ for (; i < final_val; i += stride)
+ {
+ if (rep_bytes > (int)(final_val-i))
+ rep_bytes = (int)(final_val-i);
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ }
+
+ } /* end of else (_mmx_supported) */
+
+ break;
+ } /* end 8 bpp */
+
+ case 16: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && _mmx_supported */ )
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_uint_32 len;
+ int diff;
+ int dummy_value_a; // fix 'forbidden register spilled' error
+ int dummy_value_d;
+ int dummy_value_c;
+ int dummy_value_S;
+ int dummy_value_D;
+ _unmask = ~mask; // global variable for -fPIC version
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+ len = png_ptr->width &~7; // reduce to multiple of 8
+ diff = (int) (png_ptr->width & 7); // amount lost //
+
+ __asm__ __volatile__ (
+ "movd _unmask, %%mm7 \n\t" // load bit pattern
+ "psubb %%mm6, %%mm6 \n\t" // zero mm6
+ "punpcklbw %%mm7, %%mm7 \n\t"
+ "punpcklwd %%mm7, %%mm7 \n\t"
+ "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks
+
+ "movq _mask16_0, %%mm0 \n\t"
+ "movq _mask16_1, %%mm1 \n\t"
+
+ "pand %%mm7, %%mm0 \n\t"
+ "pand %%mm7, %%mm1 \n\t"
+
+ "pcmpeqb %%mm6, %%mm0 \n\t"
+ "pcmpeqb %%mm6, %%mm1 \n\t"
+
+// preload "movl len, %%ecx \n\t" // load length of line
+// preload "movl srcptr, %%esi \n\t" // load source
+// preload "movl dstptr, %%edi \n\t" // load dest
+
+ "cmpl $0, %%ecx \n\t"
+ "jz mainloop16end \n\t"
+
+ "mainloop16: \n\t"
+ "movq (%%esi), %%mm4 \n\t"
+ "pand %%mm0, %%mm4 \n\t"
+ "movq %%mm0, %%mm6 \n\t"
+ "movq (%%edi), %%mm7 \n\t"
+ "pandn %%mm7, %%mm6 \n\t"
+ "por %%mm6, %%mm4 \n\t"
+ "movq %%mm4, (%%edi) \n\t"
+
+ "movq 8(%%esi), %%mm5 \n\t"
+ "pand %%mm1, %%mm5 \n\t"
+ "movq %%mm1, %%mm7 \n\t"
+ "movq 8(%%edi), %%mm6 \n\t"
+ "pandn %%mm6, %%mm7 \n\t"
+ "por %%mm7, %%mm5 \n\t"
+ "movq %%mm5, 8(%%edi) \n\t"
+
+ "addl $16, %%esi \n\t" // inc by 16 bytes processed
+ "addl $16, %%edi \n\t"
+ "subl $8, %%ecx \n\t" // dec by 8 pixels processed
+ "ja mainloop16 \n\t"
+
+ "mainloop16end: \n\t"
+// preload "movl diff, %%ecx \n\t" // (diff is in eax)
+ "movl %%eax, %%ecx \n\t"
+ "cmpl $0, %%ecx \n\t"
+ "jz end16 \n\t"
+// preload "movl mask, %%edx \n\t"
+ "sall $24, %%edx \n\t" // make low byte, high byte
+
+ "secondloop16: \n\t"
+ "sall %%edx \n\t" // move high bit to CF
+ "jnc skip16 \n\t" // if CF = 0
+ "movw (%%esi), %%ax \n\t"
+ "movw %%ax, (%%edi) \n\t"
+
+ "skip16: \n\t"
+ "addl $2, %%esi \n\t"
+ "addl $2, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz secondloop16 \n\t"
+
+ "end16: \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=a" (dummy_value_a), // output regs (dummy)
+ "=c" (dummy_value_c),
+ "=d" (dummy_value_d),
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (diff), // eax // input regs
+// was (unmask) " " RESERVED // ebx // Global Offset Table idx
+ "1" (len), // ecx
+ "2" (mask), // edx
+ "3" (srcptr), // esi
+ "4" (dstptr) // edi
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm4" // clobber list
+ , "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ else /* mmx _not supported - Use modified C routine */
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ register png_uint_32 i;
+ png_uint_32 initial_val = BPP2 * png_pass_start[png_ptr->pass];
+ /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */
+ register int stride = BPP2 * png_pass_inc[png_ptr->pass];
+ /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */
+ register int rep_bytes = BPP2 * png_pass_width[png_ptr->pass];
+ /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */
+ png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */
+ int diff = (int) (png_ptr->width & 7); /* amount lost */
+ register png_uint_32 final_val = BPP2 * len; /* GRR bugfix */
+
+ srcptr = png_ptr->row_buf + 1 + initial_val;
+ dstptr = row + initial_val;
+
+ for (i = initial_val; i < final_val; i += stride)
+ {
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ if (diff) /* number of leftover pixels: 3 for pngtest */
+ {
+ final_val+=diff*BPP2;
+ for (; i < final_val; i += stride)
+ {
+ if (rep_bytes > (int)(final_val-i))
+ rep_bytes = (int)(final_val-i);
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ }
+ } /* end of else (_mmx_supported) */
+
+ break;
+ } /* end 16 bpp */
+
+ case 24: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && _mmx_supported */ )
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_uint_32 len;
+ int diff;
+ int dummy_value_a; // fix 'forbidden register spilled' error
+ int dummy_value_d;
+ int dummy_value_c;
+ int dummy_value_S;
+ int dummy_value_D;
+ _unmask = ~mask; // global variable for -fPIC version
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+ len = png_ptr->width &~7; // reduce to multiple of 8
+ diff = (int) (png_ptr->width & 7); // amount lost //
+
+ __asm__ __volatile__ (
+ "movd _unmask, %%mm7 \n\t" // load bit pattern
+ "psubb %%mm6, %%mm6 \n\t" // zero mm6
+ "punpcklbw %%mm7, %%mm7 \n\t"
+ "punpcklwd %%mm7, %%mm7 \n\t"
+ "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks
+
+ "movq _mask24_0, %%mm0 \n\t"
+ "movq _mask24_1, %%mm1 \n\t"
+ "movq _mask24_2, %%mm2 \n\t"
+
+ "pand %%mm7, %%mm0 \n\t"
+ "pand %%mm7, %%mm1 \n\t"
+ "pand %%mm7, %%mm2 \n\t"
+
+ "pcmpeqb %%mm6, %%mm0 \n\t"
+ "pcmpeqb %%mm6, %%mm1 \n\t"
+ "pcmpeqb %%mm6, %%mm2 \n\t"
+
+// preload "movl len, %%ecx \n\t" // load length of line
+// preload "movl srcptr, %%esi \n\t" // load source
+// preload "movl dstptr, %%edi \n\t" // load dest
+
+ "cmpl $0, %%ecx \n\t"
+ "jz mainloop24end \n\t"
+
+ "mainloop24: \n\t"
+ "movq (%%esi), %%mm4 \n\t"
+ "pand %%mm0, %%mm4 \n\t"
+ "movq %%mm0, %%mm6 \n\t"
+ "movq (%%edi), %%mm7 \n\t"
+ "pandn %%mm7, %%mm6 \n\t"
+ "por %%mm6, %%mm4 \n\t"
+ "movq %%mm4, (%%edi) \n\t"
+
+ "movq 8(%%esi), %%mm5 \n\t"
+ "pand %%mm1, %%mm5 \n\t"
+ "movq %%mm1, %%mm7 \n\t"
+ "movq 8(%%edi), %%mm6 \n\t"
+ "pandn %%mm6, %%mm7 \n\t"
+ "por %%mm7, %%mm5 \n\t"
+ "movq %%mm5, 8(%%edi) \n\t"
+
+ "movq 16(%%esi), %%mm6 \n\t"
+ "pand %%mm2, %%mm6 \n\t"
+ "movq %%mm2, %%mm4 \n\t"
+ "movq 16(%%edi), %%mm7 \n\t"
+ "pandn %%mm7, %%mm4 \n\t"
+ "por %%mm4, %%mm6 \n\t"
+ "movq %%mm6, 16(%%edi) \n\t"
+
+ "addl $24, %%esi \n\t" // inc by 24 bytes processed
+ "addl $24, %%edi \n\t"
+ "subl $8, %%ecx \n\t" // dec by 8 pixels processed
+
+ "ja mainloop24 \n\t"
+
+ "mainloop24end: \n\t"
+// preload "movl diff, %%ecx \n\t" // (diff is in eax)
+ "movl %%eax, %%ecx \n\t"
+ "cmpl $0, %%ecx \n\t"
+ "jz end24 \n\t"
+// preload "movl mask, %%edx \n\t"
+ "sall $24, %%edx \n\t" // make low byte, high byte
+
+ "secondloop24: \n\t"
+ "sall %%edx \n\t" // move high bit to CF
+ "jnc skip24 \n\t" // if CF = 0
+ "movw (%%esi), %%ax \n\t"
+ "movw %%ax, (%%edi) \n\t"
+ "xorl %%eax, %%eax \n\t"
+ "movb 2(%%esi), %%al \n\t"
+ "movb %%al, 2(%%edi) \n\t"
+
+ "skip24: \n\t"
+ "addl $3, %%esi \n\t"
+ "addl $3, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz secondloop24 \n\t"
+
+ "end24: \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=a" (dummy_value_a), // output regs (dummy)
+ "=d" (dummy_value_d),
+ "=c" (dummy_value_c),
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "3" (srcptr), // esi // input regs
+ "4" (dstptr), // edi
+ "0" (diff), // eax
+// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
+ "2" (len), // ecx
+ "1" (mask) // edx
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm2" // clobber list
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ else /* mmx _not supported - Use modified C routine */
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ register png_uint_32 i;
+ png_uint_32 initial_val = BPP3 * png_pass_start[png_ptr->pass];
+ /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */
+ register int stride = BPP3 * png_pass_inc[png_ptr->pass];
+ /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */
+ register int rep_bytes = BPP3 * png_pass_width[png_ptr->pass];
+ /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */
+ png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */
+ int diff = (int) (png_ptr->width & 7); /* amount lost */
+ register png_uint_32 final_val = BPP3 * len; /* GRR bugfix */
+
+ srcptr = png_ptr->row_buf + 1 + initial_val;
+ dstptr = row + initial_val;
+
+ for (i = initial_val; i < final_val; i += stride)
+ {
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ if (diff) /* number of leftover pixels: 3 for pngtest */
+ {
+ final_val+=diff*BPP3;
+ for (; i < final_val; i += stride)
+ {
+ if (rep_bytes > (int)(final_val-i))
+ rep_bytes = (int)(final_val-i);
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ }
+ } /* end of else (_mmx_supported) */
+
+ break;
+ } /* end 24 bpp */
+
+ case 32: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && _mmx_supported */ )
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_uint_32 len;
+ int diff;
+ int dummy_value_a; // fix 'forbidden register spilled' error
+ int dummy_value_d;
+ int dummy_value_c;
+ int dummy_value_S;
+ int dummy_value_D;
+ _unmask = ~mask; // global variable for -fPIC version
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+ len = png_ptr->width &~7; // reduce to multiple of 8
+ diff = (int) (png_ptr->width & 7); // amount lost //
+
+ __asm__ __volatile__ (
+ "movd _unmask, %%mm7 \n\t" // load bit pattern
+ "psubb %%mm6, %%mm6 \n\t" // zero mm6
+ "punpcklbw %%mm7, %%mm7 \n\t"
+ "punpcklwd %%mm7, %%mm7 \n\t"
+ "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks
+
+ "movq _mask32_0, %%mm0 \n\t"
+ "movq _mask32_1, %%mm1 \n\t"
+ "movq _mask32_2, %%mm2 \n\t"
+ "movq _mask32_3, %%mm3 \n\t"
+
+ "pand %%mm7, %%mm0 \n\t"
+ "pand %%mm7, %%mm1 \n\t"
+ "pand %%mm7, %%mm2 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+
+ "pcmpeqb %%mm6, %%mm0 \n\t"
+ "pcmpeqb %%mm6, %%mm1 \n\t"
+ "pcmpeqb %%mm6, %%mm2 \n\t"
+ "pcmpeqb %%mm6, %%mm3 \n\t"
+
+// preload "movl len, %%ecx \n\t" // load length of line
+// preload "movl srcptr, %%esi \n\t" // load source
+// preload "movl dstptr, %%edi \n\t" // load dest
+
+ "cmpl $0, %%ecx \n\t" // lcr
+ "jz mainloop32end \n\t"
+
+ "mainloop32: \n\t"
+ "movq (%%esi), %%mm4 \n\t"
+ "pand %%mm0, %%mm4 \n\t"
+ "movq %%mm0, %%mm6 \n\t"
+ "movq (%%edi), %%mm7 \n\t"
+ "pandn %%mm7, %%mm6 \n\t"
+ "por %%mm6, %%mm4 \n\t"
+ "movq %%mm4, (%%edi) \n\t"
+
+ "movq 8(%%esi), %%mm5 \n\t"
+ "pand %%mm1, %%mm5 \n\t"
+ "movq %%mm1, %%mm7 \n\t"
+ "movq 8(%%edi), %%mm6 \n\t"
+ "pandn %%mm6, %%mm7 \n\t"
+ "por %%mm7, %%mm5 \n\t"
+ "movq %%mm5, 8(%%edi) \n\t"
+
+ "movq 16(%%esi), %%mm6 \n\t"
+ "pand %%mm2, %%mm6 \n\t"
+ "movq %%mm2, %%mm4 \n\t"
+ "movq 16(%%edi), %%mm7 \n\t"
+ "pandn %%mm7, %%mm4 \n\t"
+ "por %%mm4, %%mm6 \n\t"
+ "movq %%mm6, 16(%%edi) \n\t"
+
+ "movq 24(%%esi), %%mm7 \n\t"
+ "pand %%mm3, %%mm7 \n\t"
+ "movq %%mm3, %%mm5 \n\t"
+ "movq 24(%%edi), %%mm4 \n\t"
+ "pandn %%mm4, %%mm5 \n\t"
+ "por %%mm5, %%mm7 \n\t"
+ "movq %%mm7, 24(%%edi) \n\t"
+
+ "addl $32, %%esi \n\t" // inc by 32 bytes processed
+ "addl $32, %%edi \n\t"
+ "subl $8, %%ecx \n\t" // dec by 8 pixels processed
+ "ja mainloop32 \n\t"
+
+ "mainloop32end: \n\t"
+// preload "movl diff, %%ecx \n\t" // (diff is in eax)
+ "movl %%eax, %%ecx \n\t"
+ "cmpl $0, %%ecx \n\t"
+ "jz end32 \n\t"
+// preload "movl mask, %%edx \n\t"
+ "sall $24, %%edx \n\t" // low byte => high byte
+
+ "secondloop32: \n\t"
+ "sall %%edx \n\t" // move high bit to CF
+ "jnc skip32 \n\t" // if CF = 0
+ "movl (%%esi), %%eax \n\t"
+ "movl %%eax, (%%edi) \n\t"
+
+ "skip32: \n\t"
+ "addl $4, %%esi \n\t"
+ "addl $4, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz secondloop32 \n\t"
+
+ "end32: \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=a" (dummy_value_a), // output regs (dummy)
+ "=d" (dummy_value_d),
+ "=c" (dummy_value_c),
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "3" (srcptr), // esi // input regs
+ "4" (dstptr), // edi
+ "0" (diff), // eax
+// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
+ "2" (len), // ecx
+ "1" (mask) // edx
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm2", "%mm3" // clobber list
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ else /* mmx _not supported - Use modified C routine */
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ register png_uint_32 i;
+ png_uint_32 initial_val = BPP4 * png_pass_start[png_ptr->pass];
+ /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */
+ register int stride = BPP4 * png_pass_inc[png_ptr->pass];
+ /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */
+ register int rep_bytes = BPP4 * png_pass_width[png_ptr->pass];
+ /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */
+ png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */
+ int diff = (int) (png_ptr->width & 7); /* amount lost */
+ register png_uint_32 final_val = BPP4 * len; /* GRR bugfix */
+
+ srcptr = png_ptr->row_buf + 1 + initial_val;
+ dstptr = row + initial_val;
+
+ for (i = initial_val; i < final_val; i += stride)
+ {
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ if (diff) /* number of leftover pixels: 3 for pngtest */
+ {
+ final_val+=diff*BPP4;
+ for (; i < final_val; i += stride)
+ {
+ if (rep_bytes > (int)(final_val-i))
+ rep_bytes = (int)(final_val-i);
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ }
+ } /* end of else (_mmx_supported) */
+
+ break;
+ } /* end 32 bpp */
+
+ case 48: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && _mmx_supported */ )
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_uint_32 len;
+ int diff;
+ int dummy_value_a; // fix 'forbidden register spilled' error
+ int dummy_value_d;
+ int dummy_value_c;
+ int dummy_value_S;
+ int dummy_value_D;
+ _unmask = ~mask; // global variable for -fPIC version
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+ len = png_ptr->width &~7; // reduce to multiple of 8
+ diff = (int) (png_ptr->width & 7); // amount lost //
+
+ __asm__ __volatile__ (
+ "movd _unmask, %%mm7 \n\t" // load bit pattern
+ "psubb %%mm6, %%mm6 \n\t" // zero mm6
+ "punpcklbw %%mm7, %%mm7 \n\t"
+ "punpcklwd %%mm7, %%mm7 \n\t"
+ "punpckldq %%mm7, %%mm7 \n\t" // fill reg with 8 masks
+
+ "movq _mask48_0, %%mm0 \n\t"
+ "movq _mask48_1, %%mm1 \n\t"
+ "movq _mask48_2, %%mm2 \n\t"
+ "movq _mask48_3, %%mm3 \n\t"
+ "movq _mask48_4, %%mm4 \n\t"
+ "movq _mask48_5, %%mm5 \n\t"
+
+ "pand %%mm7, %%mm0 \n\t"
+ "pand %%mm7, %%mm1 \n\t"
+ "pand %%mm7, %%mm2 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pand %%mm7, %%mm4 \n\t"
+ "pand %%mm7, %%mm5 \n\t"
+
+ "pcmpeqb %%mm6, %%mm0 \n\t"
+ "pcmpeqb %%mm6, %%mm1 \n\t"
+ "pcmpeqb %%mm6, %%mm2 \n\t"
+ "pcmpeqb %%mm6, %%mm3 \n\t"
+ "pcmpeqb %%mm6, %%mm4 \n\t"
+ "pcmpeqb %%mm6, %%mm5 \n\t"
+
+// preload "movl len, %%ecx \n\t" // load length of line
+// preload "movl srcptr, %%esi \n\t" // load source
+// preload "movl dstptr, %%edi \n\t" // load dest
+
+ "cmpl $0, %%ecx \n\t"
+ "jz mainloop48end \n\t"
+
+ "mainloop48: \n\t"
+ "movq (%%esi), %%mm7 \n\t"
+ "pand %%mm0, %%mm7 \n\t"
+ "movq %%mm0, %%mm6 \n\t"
+ "pandn (%%edi), %%mm6 \n\t"
+ "por %%mm6, %%mm7 \n\t"
+ "movq %%mm7, (%%edi) \n\t"
+
+ "movq 8(%%esi), %%mm6 \n\t"
+ "pand %%mm1, %%mm6 \n\t"
+ "movq %%mm1, %%mm7 \n\t"
+ "pandn 8(%%edi), %%mm7 \n\t"
+ "por %%mm7, %%mm6 \n\t"
+ "movq %%mm6, 8(%%edi) \n\t"
+
+ "movq 16(%%esi), %%mm6 \n\t"
+ "pand %%mm2, %%mm6 \n\t"
+ "movq %%mm2, %%mm7 \n\t"
+ "pandn 16(%%edi), %%mm7 \n\t"
+ "por %%mm7, %%mm6 \n\t"
+ "movq %%mm6, 16(%%edi) \n\t"
+
+ "movq 24(%%esi), %%mm7 \n\t"
+ "pand %%mm3, %%mm7 \n\t"
+ "movq %%mm3, %%mm6 \n\t"
+ "pandn 24(%%edi), %%mm6 \n\t"
+ "por %%mm6, %%mm7 \n\t"
+ "movq %%mm7, 24(%%edi) \n\t"
+
+ "movq 32(%%esi), %%mm6 \n\t"
+ "pand %%mm4, %%mm6 \n\t"
+ "movq %%mm4, %%mm7 \n\t"
+ "pandn 32(%%edi), %%mm7 \n\t"
+ "por %%mm7, %%mm6 \n\t"
+ "movq %%mm6, 32(%%edi) \n\t"
+
+ "movq 40(%%esi), %%mm7 \n\t"
+ "pand %%mm5, %%mm7 \n\t"
+ "movq %%mm5, %%mm6 \n\t"
+ "pandn 40(%%edi), %%mm6 \n\t"
+ "por %%mm6, %%mm7 \n\t"
+ "movq %%mm7, 40(%%edi) \n\t"
+
+ "addl $48, %%esi \n\t" // inc by 48 bytes processed
+ "addl $48, %%edi \n\t"
+ "subl $8, %%ecx \n\t" // dec by 8 pixels processed
+
+ "ja mainloop48 \n\t"
+
+ "mainloop48end: \n\t"
+// preload "movl diff, %%ecx \n\t" // (diff is in eax)
+ "movl %%eax, %%ecx \n\t"
+ "cmpl $0, %%ecx \n\t"
+ "jz end48 \n\t"
+// preload "movl mask, %%edx \n\t"
+ "sall $24, %%edx \n\t" // make low byte, high byte
+
+ "secondloop48: \n\t"
+ "sall %%edx \n\t" // move high bit to CF
+ "jnc skip48 \n\t" // if CF = 0
+ "movl (%%esi), %%eax \n\t"
+ "movl %%eax, (%%edi) \n\t"
+
+ "skip48: \n\t"
+ "addl $4, %%esi \n\t"
+ "addl $4, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz secondloop48 \n\t"
+
+ "end48: \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=a" (dummy_value_a), // output regs (dummy)
+ "=d" (dummy_value_d),
+ "=c" (dummy_value_c),
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "3" (srcptr), // esi // input regs
+ "4" (dstptr), // edi
+ "0" (diff), // eax
+// was (unmask) "b" RESERVED // ebx // Global Offset Table idx
+ "2" (len), // ecx
+ "1" (mask) // edx
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm2", "%mm3" // clobber list
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ else /* mmx _not supported - Use modified C routine */
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ register png_uint_32 i;
+ png_uint_32 initial_val = BPP6 * png_pass_start[png_ptr->pass];
+ /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */
+ register int stride = BPP6 * png_pass_inc[png_ptr->pass];
+ /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */
+ register int rep_bytes = BPP6 * png_pass_width[png_ptr->pass];
+ /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */
+ png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */
+ int diff = (int) (png_ptr->width & 7); /* amount lost */
+ register png_uint_32 final_val = BPP6 * len; /* GRR bugfix */
+
+ srcptr = png_ptr->row_buf + 1 + initial_val;
+ dstptr = row + initial_val;
+
+ for (i = initial_val; i < final_val; i += stride)
+ {
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ if (diff) /* number of leftover pixels: 3 for pngtest */
+ {
+ final_val+=diff*BPP6;
+ for (; i < final_val; i += stride)
+ {
+ if (rep_bytes > (int)(final_val-i))
+ rep_bytes = (int)(final_val-i);
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ }
+ } /* end of else (_mmx_supported) */
+
+ break;
+ } /* end 48 bpp */
+
+ case 64: /* png_ptr->row_info.pixel_depth */
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+ register png_uint_32 i;
+ png_uint_32 initial_val = BPP8 * png_pass_start[png_ptr->pass];
+ /* png.c: png_pass_start[] = {0, 4, 0, 2, 0, 1, 0}; */
+ register int stride = BPP8 * png_pass_inc[png_ptr->pass];
+ /* png.c: png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1}; */
+ register int rep_bytes = BPP8 * png_pass_width[png_ptr->pass];
+ /* png.c: png_pass_width[] = {8, 4, 4, 2, 2, 1, 1}; */
+ png_uint_32 len = png_ptr->width &~7; /* reduce to mult. of 8 */
+ int diff = (int) (png_ptr->width & 7); /* amount lost */
+ register png_uint_32 final_val = BPP8 * len; /* GRR bugfix */
+
+ srcptr = png_ptr->row_buf + 1 + initial_val;
+ dstptr = row + initial_val;
+
+ for (i = initial_val; i < final_val; i += stride)
+ {
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ if (diff) /* number of leftover pixels: 3 for pngtest */
+ {
+ final_val+=diff*BPP8;
+ for (; i < final_val; i += stride)
+ {
+ if (rep_bytes > (int)(final_val-i))
+ rep_bytes = (int)(final_val-i);
+ png_memcpy(dstptr, srcptr, rep_bytes);
+ srcptr += stride;
+ dstptr += stride;
+ }
+ }
+
+ break;
+ } /* end 64 bpp */
+
+ default: /* png_ptr->row_info.pixel_depth != 1,2,4,8,16,24,32,48,64 */
+ {
+ /* this should never happen */
+ png_warning(png_ptr, "Invalid row_info.pixel_depth in pnggccrd");
+ break;
+ }
+ } /* end switch (png_ptr->row_info.pixel_depth) */
+
+ } /* end if (non-trivial mask) */
+
+} /* end png_combine_row() */
+
+#endif /* PNG_HAVE_ASSEMBLER_COMBINE_ROW */
+
+
+
+
+/*===========================================================================*/
+/* */
+/* P N G _ D O _ R E A D _ I N T E R L A C E */
+/* */
+/*===========================================================================*/
+
+#if defined(PNG_READ_INTERLACING_SUPPORTED)
+#if defined(PNG_HAVE_ASSEMBLER_READ_INTERLACE)
+
+/* png_do_read_interlace() is called after any 16-bit to 8-bit conversion
+ * has taken place. [GRR: what other steps come before and/or after?]
+ */
+
+void /* PRIVATE */
+png_do_read_interlace(png_structp png_ptr)
+{
+ png_row_infop row_info = &(png_ptr->row_info);
+ png_bytep row = png_ptr->row_buf + 1;
+ int pass = png_ptr->pass;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ png_uint_32 transformations = png_ptr->transformations;
+#endif
+
+ png_debug(1, "in png_do_read_interlace (pnggccrd.c)\n");
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+ if (_mmx_supported == 2) {
+#if !defined(PNG_1_0_X)
+ /* this should have happened in png_init_mmx_flags() already */
+ png_warning(png_ptr, "asm_flags may not have been initialized");
+#endif
+ png_mmx_support();
+ }
+#endif
+
+ if (row != NULL && row_info != NULL)
+ {
+ png_uint_32 final_width;
+
+ final_width = row_info->width * png_pass_inc[pass];
+
+ switch (row_info->pixel_depth)
+ {
+ case 1:
+ {
+ png_bytep sp, dp;
+ int sshift, dshift;
+ int s_start, s_end, s_inc;
+ png_byte v;
+ png_uint_32 i;
+ int j;
+
+ sp = row + (png_size_t)((row_info->width - 1) >> 3);
+ dp = row + (png_size_t)((final_width - 1) >> 3);
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (transformations & PNG_PACKSWAP)
+ {
+ sshift = (int)((row_info->width + 7) & 7);
+ dshift = (int)((final_width + 7) & 7);
+ s_start = 7;
+ s_end = 0;
+ s_inc = -1;
+ }
+ else
+#endif
+ {
+ sshift = 7 - (int)((row_info->width + 7) & 7);
+ dshift = 7 - (int)((final_width + 7) & 7);
+ s_start = 0;
+ s_end = 7;
+ s_inc = 1;
+ }
+
+ for (i = row_info->width; i; i--)
+ {
+ v = (png_byte)((*sp >> sshift) & 0x1);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp &= (png_byte)((0x7f7f >> (7 - dshift)) & 0xff);
+ *dp |= (png_byte)(v << dshift);
+ if (dshift == s_end)
+ {
+ dshift = s_start;
+ dp--;
+ }
+ else
+ dshift += s_inc;
+ }
+ if (sshift == s_end)
+ {
+ sshift = s_start;
+ sp--;
+ }
+ else
+ sshift += s_inc;
+ }
+ break;
+ }
+
+ case 2:
+ {
+ png_bytep sp, dp;
+ int sshift, dshift;
+ int s_start, s_end, s_inc;
+ png_uint_32 i;
+
+ sp = row + (png_size_t)((row_info->width - 1) >> 2);
+ dp = row + (png_size_t)((final_width - 1) >> 2);
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (transformations & PNG_PACKSWAP)
+ {
+ sshift = (png_size_t)(((row_info->width + 3) & 3) << 1);
+ dshift = (png_size_t)(((final_width + 3) & 3) << 1);
+ s_start = 6;
+ s_end = 0;
+ s_inc = -2;
+ }
+ else
+#endif
+ {
+ sshift = (png_size_t)((3 - ((row_info->width + 3) & 3)) << 1);
+ dshift = (png_size_t)((3 - ((final_width + 3) & 3)) << 1);
+ s_start = 0;
+ s_end = 6;
+ s_inc = 2;
+ }
+
+ for (i = row_info->width; i; i--)
+ {
+ png_byte v;
+ int j;
+
+ v = (png_byte)((*sp >> sshift) & 0x3);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp &= (png_byte)((0x3f3f >> (6 - dshift)) & 0xff);
+ *dp |= (png_byte)(v << dshift);
+ if (dshift == s_end)
+ {
+ dshift = s_start;
+ dp--;
+ }
+ else
+ dshift += s_inc;
+ }
+ if (sshift == s_end)
+ {
+ sshift = s_start;
+ sp--;
+ }
+ else
+ sshift += s_inc;
+ }
+ break;
+ }
+
+ case 4:
+ {
+ png_bytep sp, dp;
+ int sshift, dshift;
+ int s_start, s_end, s_inc;
+ png_uint_32 i;
+
+ sp = row + (png_size_t)((row_info->width - 1) >> 1);
+ dp = row + (png_size_t)((final_width - 1) >> 1);
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (transformations & PNG_PACKSWAP)
+ {
+ sshift = (png_size_t)(((row_info->width + 1) & 1) << 2);
+ dshift = (png_size_t)(((final_width + 1) & 1) << 2);
+ s_start = 4;
+ s_end = 0;
+ s_inc = -4;
+ }
+ else
+#endif
+ {
+ sshift = (png_size_t)((1 - ((row_info->width + 1) & 1)) << 2);
+ dshift = (png_size_t)((1 - ((final_width + 1) & 1)) << 2);
+ s_start = 0;
+ s_end = 4;
+ s_inc = 4;
+ }
+
+ for (i = row_info->width; i; i--)
+ {
+ png_byte v;
+ int j;
+
+ v = (png_byte)((*sp >> sshift) & 0xf);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp &= (png_byte)((0xf0f >> (4 - dshift)) & 0xff);
+ *dp |= (png_byte)(v << dshift);
+ if (dshift == s_end)
+ {
+ dshift = s_start;
+ dp--;
+ }
+ else
+ dshift += s_inc;
+ }
+ if (sshift == s_end)
+ {
+ sshift = s_start;
+ sp--;
+ }
+ else
+ sshift += s_inc;
+ }
+ break;
+ }
+
+ /*====================================================================*/
+
+ default: /* 8-bit or larger (this is where the routine is modified) */
+ {
+#if 0
+// static unsigned long long _const4 = 0x0000000000FFFFFFLL; no good
+// static unsigned long long const4 = 0x0000000000FFFFFFLL; no good
+// unsigned long long _const4 = 0x0000000000FFFFFFLL; no good
+// unsigned long long const4 = 0x0000000000FFFFFFLL; no good
+#endif
+ png_bytep sptr, dp;
+ png_uint_32 i;
+ png_size_t pixel_bytes;
+ int width = (int)row_info->width;
+
+ pixel_bytes = (row_info->pixel_depth >> 3);
+
+ /* point sptr at the last pixel in the pre-expanded row: */
+ sptr = row + (width - 1) * pixel_bytes;
+
+ /* point dp at the last pixel position in the expanded row: */
+ dp = row + (final_width - 1) * pixel_bytes;
+
+ /* New code by Nirav Chhatrapati - Intel Corporation */
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE)
+ /* && _mmx_supported */ )
+#else
+ if (_mmx_supported)
+#endif
+ {
+ //--------------------------------------------------------------
+ if (pixel_bytes == 3)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $21, %%edi \n\t"
+ // (png_pass_inc[pass] - 1)*pixel_bytes
+
+ ".loop3_pass0: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x x 2 1 0
+ "pand _const4, %%mm0 \n\t" // z z z z z 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // z z z z z 2 1 0
+ "psllq $16, %%mm0 \n\t" // z z z 2 1 0 z z
+ "movq %%mm0, %%mm2 \n\t" // z z z 2 1 0 z z
+ "psllq $24, %%mm0 \n\t" // 2 1 0 z z z z z
+ "psrlq $8, %%mm1 \n\t" // z z z z z z 2 1
+ "por %%mm2, %%mm0 \n\t" // 2 1 0 2 1 0 z z
+ "por %%mm1, %%mm0 \n\t" // 2 1 0 2 1 0 2 1
+ "movq %%mm0, %%mm3 \n\t" // 2 1 0 2 1 0 2 1
+ "psllq $16, %%mm0 \n\t" // 0 2 1 0 2 1 z z
+ "movq %%mm3, %%mm4 \n\t" // 2 1 0 2 1 0 2 1
+ "punpckhdq %%mm0, %%mm3 \n\t" // 0 2 1 0 2 1 0 2
+ "movq %%mm4, 16(%%edi) \n\t"
+ "psrlq $32, %%mm0 \n\t" // z z z z 0 2 1 0
+ "movq %%mm3, 8(%%edi) \n\t"
+ "punpckldq %%mm4, %%mm0 \n\t" // 1 0 2 1 0 2 1 0
+ "subl $3, %%esi \n\t"
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $24, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz .loop3_pass0 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width) // ecx
+// doesn't work "i" (0x0000000000FFFFFFLL) // %1 (a.k.a. _const4)
+
+#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm2" // clobber list
+ , "%mm3", "%mm4"
+#endif
+ );
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $9, %%edi \n\t"
+ // (png_pass_inc[pass] - 1)*pixel_bytes
+
+ ".loop3_pass2: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x x 2 1 0
+ "pand _const4, %%mm0 \n\t" // z z z z z 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // z z z z z 2 1 0
+ "psllq $16, %%mm0 \n\t" // z z z 2 1 0 z z
+ "movq %%mm0, %%mm2 \n\t" // z z z 2 1 0 z z
+ "psllq $24, %%mm0 \n\t" // 2 1 0 z z z z z
+ "psrlq $8, %%mm1 \n\t" // z z z z z z 2 1
+ "por %%mm2, %%mm0 \n\t" // 2 1 0 2 1 0 z z
+ "por %%mm1, %%mm0 \n\t" // 2 1 0 2 1 0 2 1
+ "movq %%mm0, 4(%%edi) \n\t"
+ "psrlq $16, %%mm0 \n\t" // z z 2 1 0 2 1 0
+ "subl $3, %%esi \n\t"
+ "movd %%mm0, (%%edi) \n\t"
+ "subl $12, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz .loop3_pass2 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width) // ecx
+
+#if 0 /* %mm0, ..., %mm2 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm2" // clobber list
+#endif
+ );
+ }
+ else if (width) /* && ((pass == 4) || (pass == 5)) */
+ {
+ int width_mmx = ((width >> 1) << 1) - 8; // GRR: huh?
+ if (width_mmx < 0)
+ width_mmx = 0;
+ width -= width_mmx; // 8 or 9 pix, 24 or 27 bytes
+ if (width_mmx)
+ {
+ // png_pass_inc[] = {8, 8, 4, 4, 2, 2, 1};
+ // sptr points at last pixel in pre-expanded row
+ // dp points at last pixel position in expanded row
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $3, %%esi \n\t"
+ "subl $9, %%edi \n\t"
+ // (png_pass_inc[pass] + 1)*pixel_bytes
+
+ ".loop3_pass4: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // x x 5 4 3 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // x x 5 4 3 2 1 0
+ "movq %%mm0, %%mm2 \n\t" // x x 5 4 3 2 1 0
+ "psllq $24, %%mm0 \n\t" // 4 3 2 1 0 z z z
+ "pand _const4, %%mm1 \n\t" // z z z z z 2 1 0
+ "psrlq $24, %%mm2 \n\t" // z z z x x 5 4 3
+ "por %%mm1, %%mm0 \n\t" // 4 3 2 1 0 2 1 0
+ "movq %%mm2, %%mm3 \n\t" // z z z x x 5 4 3
+ "psllq $8, %%mm2 \n\t" // z z x x 5 4 3 z
+ "movq %%mm0, (%%edi) \n\t"
+ "psrlq $16, %%mm3 \n\t" // z z z z z x x 5
+ "pand _const6, %%mm3 \n\t" // z z z z z z z 5
+ "por %%mm3, %%mm2 \n\t" // z z x x 5 4 3 5
+ "subl $6, %%esi \n\t"
+ "movd %%mm2, 8(%%edi) \n\t"
+ "subl $12, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop3_pass4 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, ..., %mm3 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+ , "%mm2", "%mm3"
+#endif
+ );
+ }
+
+ sptr -= width_mmx*3;
+ dp -= width_mmx*6;
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+
+ png_memcpy(v, sptr, 3);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 3);
+ dp -= 3;
+ }
+ sptr -= 3;
+ }
+ }
+ } /* end of pixel_bytes == 3 */
+
+ //--------------------------------------------------------------
+ else if (pixel_bytes == 1)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int width_mmx = ((width >> 2) << 2);
+ width -= width_mmx; // 0-3 pixels => 0-3 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $3, %%esi \n\t"
+ "subl $31, %%edi \n\t"
+
+ ".loop1_pass0: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // x x x x 3 2 1 0
+ "punpcklbw %%mm0, %%mm0 \n\t" // 3 3 2 2 1 1 0 0
+ "movq %%mm0, %%mm2 \n\t" // 3 3 2 2 1 1 0 0
+ "punpcklwd %%mm0, %%mm0 \n\t" // 1 1 1 1 0 0 0 0
+ "movq %%mm0, %%mm3 \n\t" // 1 1 1 1 0 0 0 0
+ "punpckldq %%mm0, %%mm0 \n\t" // 0 0 0 0 0 0 0 0
+ "punpckhdq %%mm3, %%mm3 \n\t" // 1 1 1 1 1 1 1 1
+ "movq %%mm0, (%%edi) \n\t"
+ "punpckhwd %%mm2, %%mm2 \n\t" // 3 3 3 3 2 2 2 2
+ "movq %%mm3, 8(%%edi) \n\t"
+ "movq %%mm2, %%mm4 \n\t" // 3 3 3 3 2 2 2 2
+ "punpckldq %%mm2, %%mm2 \n\t" // 2 2 2 2 2 2 2 2
+ "punpckhdq %%mm4, %%mm4 \n\t" // 3 3 3 3 3 3 3 3
+ "movq %%mm2, 16(%%edi) \n\t"
+ "subl $4, %%esi \n\t"
+ "movq %%mm4, 24(%%edi) \n\t"
+ "subl $32, %%edi \n\t"
+ "subl $4, %%ecx \n\t"
+ "jnz .loop1_pass0 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, ..., %mm4 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1", "%mm2" // clobber list
+ , "%mm3", "%mm4"
+#endif
+ );
+ }
+
+ sptr -= width_mmx;
+ dp -= width_mmx*8;
+ for (i = width; i; i--)
+ {
+ int j;
+
+ /* I simplified this part in version 1.0.4e
+ * here and in several other instances where
+ * pixel_bytes == 1 -- GR-P
+ *
+ * Original code:
+ *
+ * png_byte v[8];
+ * png_memcpy(v, sptr, pixel_bytes);
+ * for (j = 0; j < png_pass_inc[pass]; j++)
+ * {
+ * png_memcpy(dp, v, pixel_bytes);
+ * dp -= pixel_bytes;
+ * }
+ * sptr -= pixel_bytes;
+ *
+ * Replacement code is in the next three lines:
+ */
+
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp-- = *sptr;
+ }
+ --sptr;
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int width_mmx = ((width >> 2) << 2);
+ width -= width_mmx; // 0-3 pixels => 0-3 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $3, %%esi \n\t"
+ "subl $15, %%edi \n\t"
+
+ ".loop1_pass2: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0
+ "punpcklbw %%mm0, %%mm0 \n\t" // 3 3 2 2 1 1 0 0
+ "movq %%mm0, %%mm1 \n\t" // 3 3 2 2 1 1 0 0
+ "punpcklwd %%mm0, %%mm0 \n\t" // 1 1 1 1 0 0 0 0
+ "punpckhwd %%mm1, %%mm1 \n\t" // 3 3 3 3 2 2 2 2
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $4, %%esi \n\t"
+ "movq %%mm1, 8(%%edi) \n\t"
+ "subl $16, %%edi \n\t"
+ "subl $4, %%ecx \n\t"
+ "jnz .loop1_pass2 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= width_mmx;
+ dp -= width_mmx*4;
+ for (i = width; i; i--)
+ {
+ int j;
+
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp-- = *sptr;
+ }
+ --sptr;
+ }
+ }
+ else if (width) /* && ((pass == 4) || (pass == 5)) */
+ {
+ int width_mmx = ((width >> 3) << 3);
+ width -= width_mmx; // 0-3 pixels => 0-3 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $7, %%esi \n\t"
+ "subl $15, %%edi \n\t"
+
+ ".loop1_pass4: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0
+ "punpcklbw %%mm0, %%mm0 \n\t" // 3 3 2 2 1 1 0 0
+ "punpckhbw %%mm1, %%mm1 \n\t" // 7 7 6 6 5 5 4 4
+ "movq %%mm1, 8(%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $16, %%edi \n\t"
+ "subl $8, %%ecx \n\t"
+ "jnz .loop1_pass4 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (none)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= width_mmx;
+ dp -= width_mmx*2;
+ for (i = width; i; i--)
+ {
+ int j;
+
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp-- = *sptr;
+ }
+ --sptr;
+ }
+ }
+ } /* end of pixel_bytes == 1 */
+
+ //--------------------------------------------------------------
+ else if (pixel_bytes == 2)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1);
+ width -= width_mmx; // 0,1 pixels => 0,2 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $2, %%esi \n\t"
+ "subl $30, %%edi \n\t"
+
+ ".loop2_pass0: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0
+ "punpcklwd %%mm0, %%mm0 \n\t" // 3 2 3 2 1 0 1 0
+ "movq %%mm0, %%mm1 \n\t" // 3 2 3 2 1 0 1 0
+ "punpckldq %%mm0, %%mm0 \n\t" // 1 0 1 0 1 0 1 0
+ "punpckhdq %%mm1, %%mm1 \n\t" // 3 2 3 2 3 2 3 2
+ "movq %%mm0, (%%edi) \n\t"
+ "movq %%mm0, 8(%%edi) \n\t"
+ "movq %%mm1, 16(%%edi) \n\t"
+ "subl $4, %%esi \n\t"
+ "movq %%mm1, 24(%%edi) \n\t"
+ "subl $32, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop2_pass0 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= (width_mmx*2 - 2); // sign fixed
+ dp -= (width_mmx*16 - 2); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 2;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 2;
+ png_memcpy(dp, v, 2);
+ }
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx; // 0,1 pixels => 0,2 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $2, %%esi \n\t"
+ "subl $14, %%edi \n\t"
+
+ ".loop2_pass2: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0
+ "punpcklwd %%mm0, %%mm0 \n\t" // 3 2 3 2 1 0 1 0
+ "movq %%mm0, %%mm1 \n\t" // 3 2 3 2 1 0 1 0
+ "punpckldq %%mm0, %%mm0 \n\t" // 1 0 1 0 1 0 1 0
+ "punpckhdq %%mm1, %%mm1 \n\t" // 3 2 3 2 3 2 3 2
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $4, %%esi \n\t"
+ "movq %%mm1, 8(%%edi) \n\t"
+ "subl $16, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop2_pass2 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= (width_mmx*2 - 2); // sign fixed
+ dp -= (width_mmx*8 - 2); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 2;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 2;
+ png_memcpy(dp, v, 2);
+ }
+ }
+ }
+ else if (width) // pass == 4 or 5
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx; // 0,1 pixels => 0,2 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $2, %%esi \n\t"
+ "subl $6, %%edi \n\t"
+
+ ".loop2_pass4: \n\t"
+ "movd (%%esi), %%mm0 \n\t" // x x x x 3 2 1 0
+ "punpcklwd %%mm0, %%mm0 \n\t" // 3 2 3 2 1 0 1 0
+ "subl $4, %%esi \n\t"
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $8, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop2_pass4 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0" // clobber list
+#endif
+ );
+ }
+
+ sptr -= (width_mmx*2 - 2); // sign fixed
+ dp -= (width_mmx*4 - 2); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 2;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 2;
+ png_memcpy(dp, v, 2);
+ }
+ }
+ }
+ } /* end of pixel_bytes == 2 */
+
+ //--------------------------------------------------------------
+ else if (pixel_bytes == 4)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1);
+ width -= width_mmx; // 0,1 pixels => 0,4 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $4, %%esi \n\t"
+ "subl $60, %%edi \n\t"
+
+ ".loop4_pass0: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0
+ "punpckldq %%mm0, %%mm0 \n\t" // 3 2 1 0 3 2 1 0
+ "punpckhdq %%mm1, %%mm1 \n\t" // 7 6 5 4 7 6 5 4
+ "movq %%mm0, (%%edi) \n\t"
+ "movq %%mm0, 8(%%edi) \n\t"
+ "movq %%mm0, 16(%%edi) \n\t"
+ "movq %%mm0, 24(%%edi) \n\t"
+ "movq %%mm1, 32(%%edi) \n\t"
+ "movq %%mm1, 40(%%edi) \n\t"
+ "movq %%mm1, 48(%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "movq %%mm1, 56(%%edi) \n\t"
+ "subl $64, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop4_pass0 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= (width_mmx*4 - 4); // sign fixed
+ dp -= (width_mmx*32 - 4); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 4;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 4;
+ png_memcpy(dp, v, 4);
+ }
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1);
+ width -= width_mmx; // 0,1 pixels => 0,4 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $4, %%esi \n\t"
+ "subl $28, %%edi \n\t"
+
+ ".loop4_pass2: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0
+ "punpckldq %%mm0, %%mm0 \n\t" // 3 2 1 0 3 2 1 0
+ "punpckhdq %%mm1, %%mm1 \n\t" // 7 6 5 4 7 6 5 4
+ "movq %%mm0, (%%edi) \n\t"
+ "movq %%mm0, 8(%%edi) \n\t"
+ "movq %%mm1, 16(%%edi) \n\t"
+ "movq %%mm1, 24(%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "subl $32, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop4_pass2 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= (width_mmx*4 - 4); // sign fixed
+ dp -= (width_mmx*16 - 4); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 4;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 4;
+ png_memcpy(dp, v, 4);
+ }
+ }
+ }
+ else if (width) // pass == 4 or 5
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx; // 0,1 pixels => 0,4 bytes
+ if (width_mmx)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $4, %%esi \n\t"
+ "subl $12, %%edi \n\t"
+
+ ".loop4_pass4: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, %%mm1 \n\t" // 7 6 5 4 3 2 1 0
+ "punpckldq %%mm0, %%mm0 \n\t" // 3 2 1 0 3 2 1 0
+ "punpckhdq %%mm1, %%mm1 \n\t" // 7 6 5 4 7 6 5 4
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "movq %%mm1, 8(%%edi) \n\t"
+ "subl $16, %%edi \n\t"
+ "subl $2, %%ecx \n\t"
+ "jnz .loop4_pass4 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width_mmx) // ecx
+
+#if 0 /* %mm0, %mm1 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0", "%mm1" // clobber list
+#endif
+ );
+ }
+
+ sptr -= (width_mmx*4 - 4); // sign fixed
+ dp -= (width_mmx*8 - 4); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 4;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 4;
+ png_memcpy(dp, v, 4);
+ }
+ }
+ }
+ } /* end of pixel_bytes == 4 */
+
+ //--------------------------------------------------------------
+ else if (pixel_bytes == 8)
+ {
+// GRR TEST: should work, but needs testing (special 64-bit version of rpng2?)
+ // GRR NOTE: no need to combine passes here!
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ // source is 8-byte RRGGBBAA
+ // dest is 64-byte RRGGBBAA RRGGBBAA RRGGBBAA RRGGBBAA ...
+ __asm__ __volatile__ (
+ "subl $56, %%edi \n\t" // start of last block
+
+ ".loop8_pass0: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, (%%edi) \n\t"
+ "movq %%mm0, 8(%%edi) \n\t"
+ "movq %%mm0, 16(%%edi) \n\t"
+ "movq %%mm0, 24(%%edi) \n\t"
+ "movq %%mm0, 32(%%edi) \n\t"
+ "movq %%mm0, 40(%%edi) \n\t"
+ "movq %%mm0, 48(%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "movq %%mm0, 56(%%edi) \n\t"
+ "subl $64, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz .loop8_pass0 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width) // ecx
+
+#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0" // clobber list
+#endif
+ );
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ // source is 8-byte RRGGBBAA
+ // dest is 32-byte RRGGBBAA RRGGBBAA RRGGBBAA RRGGBBAA
+ // (recall that expansion is _in place_: sptr and dp
+ // both point at locations within same row buffer)
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $24, %%edi \n\t" // start of last block
+
+ ".loop8_pass2: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, (%%edi) \n\t"
+ "movq %%mm0, 8(%%edi) \n\t"
+ "movq %%mm0, 16(%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "movq %%mm0, 24(%%edi) \n\t"
+ "subl $32, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz .loop8_pass2 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width) // ecx
+
+#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0" // clobber list
+#endif
+ );
+ }
+ }
+ else if (width) // pass == 4 or 5
+ {
+ // source is 8-byte RRGGBBAA
+ // dest is 16-byte RRGGBBAA RRGGBBAA
+ {
+ int dummy_value_c; // fix 'forbidden register spilled'
+ int dummy_value_S;
+ int dummy_value_D;
+
+ __asm__ __volatile__ (
+ "subl $8, %%edi \n\t" // start of last block
+
+ ".loop8_pass4: \n\t"
+ "movq (%%esi), %%mm0 \n\t" // 7 6 5 4 3 2 1 0
+ "movq %%mm0, (%%edi) \n\t"
+ "subl $8, %%esi \n\t"
+ "movq %%mm0, 8(%%edi) \n\t"
+ "subl $16, %%edi \n\t"
+ "decl %%ecx \n\t"
+ "jnz .loop8_pass4 \n\t"
+ "EMMS \n\t" // DONE
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "1" (sptr), // esi // input regs
+ "2" (dp), // edi
+ "0" (width) // ecx
+
+#if 0 /* %mm0 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ : "%mm0" // clobber list
+#endif
+ );
+ }
+ }
+
+ } /* end of pixel_bytes == 8 */
+
+ //--------------------------------------------------------------
+ else if (pixel_bytes == 6)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 6);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 6);
+ dp -= 6;
+ }
+ sptr -= 6;
+ }
+ } /* end of pixel_bytes == 6 */
+
+ //--------------------------------------------------------------
+ else
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr-= pixel_bytes;
+ }
+ }
+ } // end of _mmx_supported ========================================
+
+ else /* MMX not supported: use modified C code - takes advantage
+ * of inlining of png_memcpy for a constant */
+ /* GRR 19991007: does it? or should pixel_bytes in each
+ * block be replaced with immediate value (e.g., 1)? */
+ /* GRR 19991017: replaced with constants in each case */
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ if (pixel_bytes == 1)
+ {
+ for (i = width; i; i--)
+ {
+ int j;
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp-- = *sptr;
+ }
+ --sptr;
+ }
+ }
+ else if (pixel_bytes == 3)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 3);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 3);
+ dp -= 3;
+ }
+ sptr -= 3;
+ }
+ }
+ else if (pixel_bytes == 2)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 2);
+ dp -= 2;
+ }
+ sptr -= 2;
+ }
+ }
+ else if (pixel_bytes == 4)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+#ifdef PNG_DEBUG
+ if (dp < row || dp+3 > row+png_ptr->row_buf_size)
+ {
+ printf("dp out of bounds: row=%d, dp=%d, rp=%d\n",
+ row, dp, row+png_ptr->row_buf_size);
+ printf("row_buf=%d\n",png_ptr->row_buf_size);
+ }
+#endif
+ png_memcpy(dp, v, 4);
+ dp -= 4;
+ }
+ sptr -= 4;
+ }
+ }
+ else if (pixel_bytes == 6)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 6);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 6);
+ dp -= 6;
+ }
+ sptr -= 6;
+ }
+ }
+ else if (pixel_bytes == 8)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 8);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 8);
+ dp -= 8;
+ }
+ sptr -= 8;
+ }
+ }
+ else /* GRR: should never be reached */
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr -= pixel_bytes;
+ }
+ }
+
+ } /* end if (MMX not supported) */
+ break;
+ }
+ } /* end switch (row_info->pixel_depth) */
+
+ row_info->width = final_width;
+ row_info->rowbytes = ((final_width *
+ (png_uint_32)row_info->pixel_depth + 7) >> 3);
+ }
+
+} /* end png_do_read_interlace() */
+
+#endif /* PNG_HAVE_ASSEMBLER_READ_INTERLACE */
+#endif /* PNG_READ_INTERLACING_SUPPORTED */
+
+
+
+#if defined(PNG_HAVE_ASSEMBLER_READ_FILTER_ROW)
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+
+// These variables are utilized in the functions below. They are declared
+// globally here to ensure alignment on 8-byte boundaries.
+
+union uAll {
+ long long use;
+ double align;
+} _LBCarryMask = {0x0101010101010101LL},
+ _HBClearMask = {0x7f7f7f7f7f7f7f7fLL},
+ _ActiveMask, _ActiveMask2, _ActiveMaskEnd, _ShiftBpp, _ShiftRem;
+
+#ifdef PNG_THREAD_UNSAFE_OK
+//===========================================================================//
+// //
+// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ A V G //
+// //
+//===========================================================================//
+
+// Optimized code for PNG Average filter decoder
+
+static void /* PRIVATE */
+png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row,
+ png_bytep prev_row)
+{
+ int bpp;
+ int dummy_value_c; // fix 'forbidden register 2 (cx) was spilled' error
+ int dummy_value_S;
+ int dummy_value_D;
+
+ bpp = (row_info->pixel_depth + 7) >> 3; // get # bytes per pixel
+ _FullLength = row_info->rowbytes; // # of bytes to filter
+
+ __asm__ __volatile__ (
+ // initialize address pointers and offset
+#ifdef __PIC__
+ "pushl %%ebx \n\t" // save index to Global Offset Table
+#endif
+//pre "movl row, %%edi \n\t" // edi: Avg(x)
+ "xorl %%ebx, %%ebx \n\t" // ebx: x
+ "movl %%edi, %%edx \n\t"
+//pre "movl prev_row, %%esi \n\t" // esi: Prior(x)
+//pre "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx)
+ "subl %%ecx, %%edx \n\t" // edx: Raw(x-bpp)
+
+ "xorl %%eax,%%eax \n\t"
+
+ // Compute the Raw value for the first bpp bytes
+ // Raw(x) = Avg(x) + (Prior(x)/2)
+ "avg_rlp: \n\t"
+ "movb (%%esi,%%ebx,),%%al \n\t" // load al with Prior(x)
+ "incl %%ebx \n\t"
+ "shrb %%al \n\t" // divide by 2
+ "addb -1(%%edi,%%ebx,),%%al \n\t" // add Avg(x); -1 to offset inc ebx
+//pre "cmpl bpp, %%ebx \n\t" // (bpp is preloaded into ecx)
+ "cmpl %%ecx, %%ebx \n\t"
+ "movb %%al,-1(%%edi,%%ebx,) \n\t" // write Raw(x); -1 to offset inc ebx
+ "jb avg_rlp \n\t" // mov does not affect flags
+
+ // get # of bytes to alignment
+ "movl %%edi, _dif \n\t" // take start of row
+ "addl %%ebx, _dif \n\t" // add bpp
+ "addl $0xf, _dif \n\t" // add 7+8 to incr past alignment bdry
+ "andl $0xfffffff8, _dif \n\t" // mask to alignment boundary
+ "subl %%edi, _dif \n\t" // subtract from start => value ebx at
+ "jz avg_go \n\t" // alignment
+
+ // fix alignment
+ // Compute the Raw value for the bytes up to the alignment boundary
+ // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2)
+ "xorl %%ecx, %%ecx \n\t"
+
+ "avg_lp1: \n\t"
+ "xorl %%eax, %%eax \n\t"
+ "movb (%%esi,%%ebx,), %%cl \n\t" // load cl with Prior(x)
+ "movb (%%edx,%%ebx,), %%al \n\t" // load al with Raw(x-bpp)
+ "addw %%cx, %%ax \n\t"
+ "incl %%ebx \n\t"
+ "shrw %%ax \n\t" // divide by 2
+ "addb -1(%%edi,%%ebx,), %%al \n\t" // add Avg(x); -1 to offset inc ebx
+ "cmpl _dif, %%ebx \n\t" // check if at alignment boundary
+ "movb %%al, -1(%%edi,%%ebx,) \n\t" // write Raw(x); -1 to offset inc ebx
+ "jb avg_lp1 \n\t" // repeat until at alignment boundary
+
+ "avg_go: \n\t"
+ "movl _FullLength, %%eax \n\t"
+ "movl %%eax, %%ecx \n\t"
+ "subl %%ebx, %%eax \n\t" // subtract alignment fix
+ "andl $0x00000007, %%eax \n\t" // calc bytes over mult of 8
+ "subl %%eax, %%ecx \n\t" // drop over bytes from original length
+ "movl %%ecx, _MMXLength \n\t"
+#ifdef __PIC__
+ "popl %%ebx \n\t" // restore index to Global Offset Table
+#endif
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (bpp), // ecx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%edx" // clobber list
+#ifndef __PIC__
+ , "%ebx"
+#endif
+ // GRR: INCLUDE "memory" as clobbered? (_dif, _MMXLength)
+ // (seems to work fine without...)
+ );
+
+ // now do the math for the rest of the row
+ switch (bpp)
+ {
+ case 3:
+ {
+ _ActiveMask.use = 0x0000000000ffffffLL;
+ _ShiftBpp.use = 24; // == 3 * 8
+ _ShiftRem.use = 40; // == 64 - 24
+
+ __asm__ __volatile__ (
+ // re-init address pointers and offset
+ "movq _ActiveMask, %%mm7 \n\t"
+ "movl _dif, %%ecx \n\t" // ecx: x = offset to
+ "movq _LBCarryMask, %%mm5 \n\t" // alignment boundary
+// preload "movl row, %%edi \n\t" // edi: Avg(x)
+ "movq _HBClearMask, %%mm4 \n\t"
+// preload "movl prev_row, %%esi \n\t" // esi: Prior(x)
+
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes
+ // (correct pos. in loop below)
+ "avg_3lp: \n\t"
+ "movq (%%edi,%%ecx,), %%mm0 \n\t" // load mm0 with Avg(x)
+ "movq %%mm5, %%mm3 \n\t"
+ "psrlq _ShiftRem, %%mm2 \n\t" // correct position Raw(x-bpp)
+ // data
+ "movq (%%esi,%%ecx,), %%mm1 \n\t" // load mm1 with Prior(x)
+ "movq %%mm7, %%mm6 \n\t"
+ "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte
+ "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2
+ "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for
+ // each byte
+ // add 1st active group (Raw(x-bpp)/2) to average with LBCarry
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 1
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active
+ // byte
+ // add 2nd active group (Raw(x-bpp)/2) to average with _LBCarry
+ "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover
+ // bytes 3-5
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active
+ // byte
+
+ // add 3rd active group (Raw(x-bpp)/2) to average with _LBCarry
+ "psllq _ShiftBpp, %%mm6 \n\t" // shift mm6 mask to cover last
+ // two
+ // bytes
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly
+ // Data only needs to be shifted once here to
+ // get the correct x-bpp offset.
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2
+ // bytes to add to Avg
+ "addl $8, %%ecx \n\t"
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active
+ // byte
+ // now ready to write back to memory
+ "movq %%mm0, -8(%%edi,%%ecx,) \n\t"
+ // move updated Raw(x) to use as Raw(x-bpp) for next loop
+ "cmpl _MMXLength, %%ecx \n\t"
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raw(x) to mm2
+ "jb avg_3lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 3 bpp
+
+ case 6:
+ case 4:
+ //case 7: // who wrote this? PNG doesn't support 5 or 7 bytes/pixel
+ //case 5: // GRR BOGUS
+ {
+ _ActiveMask.use = 0xffffffffffffffffLL; // use shift below to clear
+ // appropriate inactive bytes
+ _ShiftBpp.use = bpp << 3;
+ _ShiftRem.use = 64 - _ShiftBpp.use;
+
+ __asm__ __volatile__ (
+ "movq _HBClearMask, %%mm4 \n\t"
+
+ // re-init address pointers and offset
+ "movl _dif, %%ecx \n\t" // ecx: x = offset to
+ // alignment boundary
+
+ // load _ActiveMask and clear all bytes except for 1st active group
+ "movq _ActiveMask, %%mm7 \n\t"
+// preload "movl row, %%edi \n\t" // edi: Avg(x)
+ "psrlq _ShiftRem, %%mm7 \n\t"
+// preload "movl prev_row, %%esi \n\t" // esi: Prior(x)
+ "movq %%mm7, %%mm6 \n\t"
+ "movq _LBCarryMask, %%mm5 \n\t"
+ "psllq _ShiftBpp, %%mm6 \n\t" // create mask for 2nd active
+ // group
+
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes
+ // (we correct pos. in loop below)
+ "avg_4lp: \n\t"
+ "movq (%%edi,%%ecx,), %%mm0 \n\t"
+ "psrlq _ShiftRem, %%mm2 \n\t" // shift data to pos. correctly
+ "movq (%%esi,%%ecx,), %%mm1 \n\t"
+ // add (Prev_row/2) to average
+ "movq %%mm5, %%mm3 \n\t"
+ "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte
+ "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2
+ "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for
+ // each byte
+ // add 1st active group (Raw(x-bpp)/2) to average with _LBCarry
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm7, %%mm2 \n\t" // leave only Active Group 1
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to Avg
+ // for each Active
+ // byte
+ // add 2nd active group (Raw(x-bpp)/2) to average with _LBCarry
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly
+ "addl $8, %%ecx \n\t"
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active
+ // byte
+ "cmpl _MMXLength, %%ecx \n\t"
+ // now ready to write back to memory
+ "movq %%mm0, -8(%%edi,%%ecx,) \n\t"
+ // prep Raw(x-bpp) for next loop
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "jb avg_4lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 4,6 bpp
+
+ case 2:
+ {
+ _ActiveMask.use = 0x000000000000ffffLL;
+ _ShiftBpp.use = 16; // == 2 * 8
+ _ShiftRem.use = 48; // == 64 - 16
+
+ __asm__ __volatile__ (
+ // load _ActiveMask
+ "movq _ActiveMask, %%mm7 \n\t"
+ // re-init address pointers and offset
+ "movl _dif, %%ecx \n\t" // ecx: x = offset to alignment
+ // boundary
+ "movq _LBCarryMask, %%mm5 \n\t"
+// preload "movl row, %%edi \n\t" // edi: Avg(x)
+ "movq _HBClearMask, %%mm4 \n\t"
+// preload "movl prev_row, %%esi \n\t" // esi: Prior(x)
+
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes
+ // (we correct pos. in loop below)
+ "avg_2lp: \n\t"
+ "movq (%%edi,%%ecx,), %%mm0 \n\t"
+ "psrlq _ShiftRem, %%mm2 \n\t" // shift data to pos. correctly
+ "movq (%%esi,%%ecx,), %%mm1 \n\t" // (GRR BUGFIX: was psllq)
+ // add (Prev_row/2) to average
+ "movq %%mm5, %%mm3 \n\t"
+ "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte
+ "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2
+ "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each
+ // byte
+ "movq %%mm7, %%mm6 \n\t"
+ "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for
+ // each byte
+
+ // add 1st active group (Raw(x-bpp)/2) to average with _LBCarry
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid
+ // for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 1
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to Avg
+ // for each Active byte
+
+ // add 2nd active group (Raw(x-bpp)/2) to average with _LBCarry
+ "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover
+ // bytes 2 & 3
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid
+ // for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active byte
+
+ // add 3rd active group (Raw(x-bpp)/2) to average with _LBCarry
+ "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover
+ // bytes 4 & 5
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both lsb's were == 1
+ // (only valid for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active byte
+
+ // add 4th active group (Raw(x-bpp)/2) to average with _LBCarry
+ "psllq _ShiftBpp, %%mm6 \n\t" // shift the mm6 mask to cover
+ // bytes 6 & 7
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "psllq _ShiftBpp, %%mm2 \n\t" // shift data to pos. correctly
+ "addl $8, %%ecx \n\t"
+ "movq %%mm3, %%mm1 \n\t" // now use mm1 for getting
+ // LBCarrys
+ "pand %%mm2, %%mm1 \n\t" // get LBCarrys for each byte
+ // where both
+ // lsb's were == 1 (only valid
+ // for active group)
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm2 \n\t" // add LBCarrys to (Raw(x-bpp)/2)
+ // for each byte
+ "pand %%mm6, %%mm2 \n\t" // leave only Active Group 2
+ // bytes to add to Avg
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) + LBCarrys to
+ // Avg for each Active byte
+
+ "cmpl _MMXLength, %%ecx \n\t"
+ // now ready to write back to memory
+ "movq %%mm0, -8(%%edi,%%ecx,) \n\t"
+ // prep Raw(x-bpp) for next loop
+ "movq %%mm0, %%mm2 \n\t" // mov updated Raws to mm2
+ "jb avg_2lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 2 bpp
+
+ case 1:
+ {
+ __asm__ __volatile__ (
+ // re-init address pointers and offset
+#ifdef __PIC__
+ "pushl %%ebx \n\t" // save Global Offset Table index
+#endif
+ "movl _dif, %%ebx \n\t" // ebx: x = offset to alignment
+ // boundary
+// preload "movl row, %%edi \n\t" // edi: Avg(x)
+ "cmpl _FullLength, %%ebx \n\t" // test if offset at end of array
+ "jnb avg_1end \n\t"
+ // do Paeth decode for remaining bytes
+// preload "movl prev_row, %%esi \n\t" // esi: Prior(x)
+ "movl %%edi, %%edx \n\t"
+// preload "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx)
+ "subl %%ecx, %%edx \n\t" // edx: Raw(x-bpp)
+ "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx
+ // in loop below
+ "avg_1lp: \n\t"
+ // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2)
+ "xorl %%eax, %%eax \n\t"
+ "movb (%%esi,%%ebx,), %%cl \n\t" // load cl with Prior(x)
+ "movb (%%edx,%%ebx,), %%al \n\t" // load al with Raw(x-bpp)
+ "addw %%cx, %%ax \n\t"
+ "incl %%ebx \n\t"
+ "shrw %%ax \n\t" // divide by 2
+ "addb -1(%%edi,%%ebx,), %%al \n\t" // add Avg(x); -1 to offset
+ // inc ebx
+ "cmpl _FullLength, %%ebx \n\t" // check if at end of array
+ "movb %%al, -1(%%edi,%%ebx,) \n\t" // write back Raw(x);
+ // mov does not affect flags; -1 to offset inc ebx
+ "jb avg_1lp \n\t"
+
+ "avg_1end: \n\t"
+#ifdef __PIC__
+ "popl %%ebx \n\t" // Global Offset Table index
+#endif
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (bpp), // ecx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%edx" // clobber list
+#ifndef __PIC__
+ , "%ebx"
+#endif
+ );
+ }
+ return; // end 1 bpp
+
+ case 8:
+ {
+ __asm__ __volatile__ (
+ // re-init address pointers and offset
+ "movl _dif, %%ecx \n\t" // ecx: x == offset to alignment
+ "movq _LBCarryMask, %%mm5 \n\t" // boundary
+// preload "movl row, %%edi \n\t" // edi: Avg(x)
+ "movq _HBClearMask, %%mm4 \n\t"
+// preload "movl prev_row, %%esi \n\t" // esi: Prior(x)
+
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm2 \n\t" // load previous aligned 8 bytes
+ // (NO NEED to correct pos. in loop below)
+
+ "avg_8lp: \n\t"
+ "movq (%%edi,%%ecx,), %%mm0 \n\t"
+ "movq %%mm5, %%mm3 \n\t"
+ "movq (%%esi,%%ecx,), %%mm1 \n\t"
+ "addl $8, %%ecx \n\t"
+ "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte
+ "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2
+ "pand %%mm2, %%mm3 \n\t" // get LBCarrys for each byte
+ // where both lsb's were == 1
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7, each byte
+ "paddb %%mm3, %%mm0 \n\t" // add LBCarrys to Avg, each byte
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7, each byte
+ "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg, each
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) to Avg for each
+ "cmpl _MMXLength, %%ecx \n\t"
+ "movq %%mm0, -8(%%edi,%%ecx,) \n\t"
+ "movq %%mm0, %%mm2 \n\t" // reuse as Raw(x-bpp)
+ "jb avg_8lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm5 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2"
+ , "%mm3", "%mm4", "%mm5"
+#endif
+ );
+ }
+ break; // end 8 bpp
+
+ default: // bpp greater than 8 (!= 1,2,3,4,[5],6,[7],8)
+ {
+
+#ifdef PNG_DEBUG
+ // GRR: PRINT ERROR HERE: SHOULD NEVER BE REACHED
+ png_debug(1,
+ "Internal logic error in pnggccrd (png_read_filter_row_mmx_avg())\n");
+#endif
+
+#if 0
+ __asm__ __volatile__ (
+ "movq _LBCarryMask, %%mm5 \n\t"
+ // re-init address pointers and offset
+ "movl _dif, %%ebx \n\t" // ebx: x = offset to
+ // alignment boundary
+ "movl row, %%edi \n\t" // edi: Avg(x)
+ "movq _HBClearMask, %%mm4 \n\t"
+ "movl %%edi, %%edx \n\t"
+ "movl prev_row, %%esi \n\t" // esi: Prior(x)
+ "subl bpp, %%edx \n\t" // edx: Raw(x-bpp)
+ "avg_Alp: \n\t"
+ "movq (%%edi,%%ebx,), %%mm0 \n\t"
+ "movq %%mm5, %%mm3 \n\t"
+ "movq (%%esi,%%ebx,), %%mm1 \n\t"
+ "pand %%mm1, %%mm3 \n\t" // get lsb for each prev_row byte
+ "movq (%%edx,%%ebx,), %%mm2 \n\t"
+ "psrlq $1, %%mm1 \n\t" // divide prev_row bytes by 2
+ "pand %%mm2, %%mm3 \n\t" // get LBCarrys for each byte
+ // where both lsb's were == 1
+ "psrlq $1, %%mm2 \n\t" // divide raw bytes by 2
+ "pand %%mm4, %%mm1 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm3, %%mm0 \n\t" // add LBCarrys to Avg for each
+ // byte
+ "pand %%mm4, %%mm2 \n\t" // clear invalid bit 7 of each
+ // byte
+ "paddb %%mm1, %%mm0 \n\t" // add (Prev_row/2) to Avg for
+ // each byte
+ "addl $8, %%ebx \n\t"
+ "paddb %%mm2, %%mm0 \n\t" // add (Raw/2) to Avg for each
+ // byte
+ "cmpl _MMXLength, %%ebx \n\t"
+ "movq %%mm0, -8(%%edi,%%ebx,) \n\t"
+ "jb avg_Alp \n\t"
+
+ : // FIXASM: output regs/vars go here, e.g.: "=m" (memory_var)
+
+ : // FIXASM: input regs, e.g.: "c" (count), "S" (src), "D" (dest)
+
+ : "%ebx", "%edx", "%edi", "%esi" // CHECKASM: clobber list
+ );
+#endif /* 0 - NEVER REACHED */
+ }
+ break;
+
+ } // end switch (bpp)
+
+ __asm__ __volatile__ (
+ // MMX acceleration complete; now do clean-up
+ // check if any remaining bytes left to decode
+#ifdef __PIC__
+ "pushl %%ebx \n\t" // save index to Global Offset Table
+#endif
+ "movl _MMXLength, %%ebx \n\t" // ebx: x == offset bytes after MMX
+//pre "movl row, %%edi \n\t" // edi: Avg(x)
+ "cmpl _FullLength, %%ebx \n\t" // test if offset at end of array
+ "jnb avg_end \n\t"
+
+ // do Avg decode for remaining bytes
+//pre "movl prev_row, %%esi \n\t" // esi: Prior(x)
+ "movl %%edi, %%edx \n\t"
+//pre "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx)
+ "subl %%ecx, %%edx \n\t" // edx: Raw(x-bpp)
+ "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx below
+
+ "avg_lp2: \n\t"
+ // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2)
+ "xorl %%eax, %%eax \n\t"
+ "movb (%%esi,%%ebx,), %%cl \n\t" // load cl with Prior(x)
+ "movb (%%edx,%%ebx,), %%al \n\t" // load al with Raw(x-bpp)
+ "addw %%cx, %%ax \n\t"
+ "incl %%ebx \n\t"
+ "shrw %%ax \n\t" // divide by 2
+ "addb -1(%%edi,%%ebx,), %%al \n\t" // add Avg(x); -1 to offset inc ebx
+ "cmpl _FullLength, %%ebx \n\t" // check if at end of array
+ "movb %%al, -1(%%edi,%%ebx,) \n\t" // write back Raw(x) [mov does not
+ "jb avg_lp2 \n\t" // affect flags; -1 to offset inc ebx]
+
+ "avg_end: \n\t"
+ "EMMS \n\t" // end MMX; prep for poss. FP instrs.
+#ifdef __PIC__
+ "popl %%ebx \n\t" // restore index to Global Offset Table
+#endif
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (bpp), // ecx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%edx" // clobber list
+#ifndef __PIC__
+ , "%ebx"
+#endif
+ );
+
+} /* end png_read_filter_row_mmx_avg() */
+#endif
+
+
+
+#ifdef PNG_THREAD_UNSAFE_OK
+//===========================================================================//
+// //
+// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ P A E T H //
+// //
+//===========================================================================//
+
+// Optimized code for PNG Paeth filter decoder
+
+static void /* PRIVATE */
+png_read_filter_row_mmx_paeth(png_row_infop row_info, png_bytep row,
+ png_bytep prev_row)
+{
+ int bpp;
+ int dummy_value_c; // fix 'forbidden register 2 (cx) was spilled' error
+ int dummy_value_S;
+ int dummy_value_D;
+
+ bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel
+ _FullLength = row_info->rowbytes; // # of bytes to filter
+
+ __asm__ __volatile__ (
+#ifdef __PIC__
+ "pushl %%ebx \n\t" // save index to Global Offset Table
+#endif
+ "xorl %%ebx, %%ebx \n\t" // ebx: x offset
+//pre "movl row, %%edi \n\t"
+ "xorl %%edx, %%edx \n\t" // edx: x-bpp offset
+//pre "movl prev_row, %%esi \n\t"
+ "xorl %%eax, %%eax \n\t"
+
+ // Compute the Raw value for the first bpp bytes
+ // Note: the formula works out to be always
+ // Paeth(x) = Raw(x) + Prior(x) where x < bpp
+ "paeth_rlp: \n\t"
+ "movb (%%edi,%%ebx,), %%al \n\t"
+ "addb (%%esi,%%ebx,), %%al \n\t"
+ "incl %%ebx \n\t"
+//pre "cmpl bpp, %%ebx \n\t" (bpp is preloaded into ecx)
+ "cmpl %%ecx, %%ebx \n\t"
+ "movb %%al, -1(%%edi,%%ebx,) \n\t"
+ "jb paeth_rlp \n\t"
+ // get # of bytes to alignment
+ "movl %%edi, _dif \n\t" // take start of row
+ "addl %%ebx, _dif \n\t" // add bpp
+ "xorl %%ecx, %%ecx \n\t"
+ "addl $0xf, _dif \n\t" // add 7 + 8 to incr past alignment
+ // boundary
+ "andl $0xfffffff8, _dif \n\t" // mask to alignment boundary
+ "subl %%edi, _dif \n\t" // subtract from start ==> value ebx
+ // at alignment
+ "jz paeth_go \n\t"
+ // fix alignment
+
+ "paeth_lp1: \n\t"
+ "xorl %%eax, %%eax \n\t"
+ // pav = p - a = (a + b - c) - a = b - c
+ "movb (%%esi,%%ebx,), %%al \n\t" // load Prior(x) into al
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp)
+ "movl %%eax, _patemp \n\t" // Save pav for later use
+ "xorl %%eax, %%eax \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movb (%%edi,%%edx,), %%al \n\t" // load Raw(x-bpp) into al
+ "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp)
+ "movl %%eax, %%ecx \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "addl _patemp, %%eax \n\t" // pcv = pav + pbv
+ // pc = abs(pcv)
+ "testl $0x80000000, %%eax \n\t"
+ "jz paeth_pca \n\t"
+ "negl %%eax \n\t" // reverse sign of neg values
+
+ "paeth_pca: \n\t"
+ "movl %%eax, _pctemp \n\t" // save pc for later use
+ // pb = abs(pbv)
+ "testl $0x80000000, %%ecx \n\t"
+ "jz paeth_pba \n\t"
+ "negl %%ecx \n\t" // reverse sign of neg values
+
+ "paeth_pba: \n\t"
+ "movl %%ecx, _pbtemp \n\t" // save pb for later use
+ // pa = abs(pav)
+ "movl _patemp, %%eax \n\t"
+ "testl $0x80000000, %%eax \n\t"
+ "jz paeth_paa \n\t"
+ "negl %%eax \n\t" // reverse sign of neg values
+
+ "paeth_paa: \n\t"
+ "movl %%eax, _patemp \n\t" // save pa for later use
+ // test if pa <= pb
+ "cmpl %%ecx, %%eax \n\t"
+ "jna paeth_abb \n\t"
+ // pa > pb; now test if pb <= pc
+ "cmpl _pctemp, %%ecx \n\t"
+ "jna paeth_bbc \n\t"
+ // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "jmp paeth_paeth \n\t"
+
+ "paeth_bbc: \n\t"
+ // pb <= pc; Raw(x) = Paeth(x) + Prior(x)
+ "movb (%%esi,%%ebx,), %%cl \n\t" // load Prior(x) into cl
+ "jmp paeth_paeth \n\t"
+
+ "paeth_abb: \n\t"
+ // pa <= pb; now test if pa <= pc
+ "cmpl _pctemp, %%eax \n\t"
+ "jna paeth_abc \n\t"
+ // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "jmp paeth_paeth \n\t"
+
+ "paeth_abc: \n\t"
+ // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp)
+ "movb (%%edi,%%edx,), %%cl \n\t" // load Raw(x-bpp) into cl
+
+ "paeth_paeth: \n\t"
+ "incl %%ebx \n\t"
+ "incl %%edx \n\t"
+ // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256
+ "addb %%cl, -1(%%edi,%%ebx,) \n\t"
+ "cmpl _dif, %%ebx \n\t"
+ "jb paeth_lp1 \n\t"
+
+ "paeth_go: \n\t"
+ "movl _FullLength, %%ecx \n\t"
+ "movl %%ecx, %%eax \n\t"
+ "subl %%ebx, %%eax \n\t" // subtract alignment fix
+ "andl $0x00000007, %%eax \n\t" // calc bytes over mult of 8
+ "subl %%eax, %%ecx \n\t" // drop over bytes from original length
+ "movl %%ecx, _MMXLength \n\t"
+#ifdef __PIC__
+ "popl %%ebx \n\t" // restore index to Global Offset Table
+#endif
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (bpp), // ecx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%edx" // clobber list
+#ifndef __PIC__
+ , "%ebx"
+#endif
+ );
+
+ // now do the math for the rest of the row
+ switch (bpp)
+ {
+ case 3:
+ {
+ _ActiveMask.use = 0x0000000000ffffffLL;
+ _ActiveMaskEnd.use = 0xffff000000000000LL;
+ _ShiftBpp.use = 24; // == bpp(3) * 8
+ _ShiftRem.use = 40; // == 64 - 24
+
+ __asm__ __volatile__ (
+ "movl _dif, %%ecx \n\t"
+// preload "movl row, %%edi \n\t"
+// preload "movl prev_row, %%esi \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm1 \n\t"
+ "paeth_3lp: \n\t"
+ "psrlq _ShiftRem, %%mm1 \n\t" // shift last 3 bytes to 1st
+ // 3 bytes
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x)
+ "punpcklbw %%mm0, %%mm1 \n\t" // unpack High bytes of a
+ "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // prep c=Prior(x-bpp) bytes
+ "punpcklbw %%mm0, %%mm2 \n\t" // unpack High bytes of b
+ "psrlq _ShiftRem, %%mm3 \n\t" // shift last 3 bytes to 1st
+ // 3 bytes
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ "punpcklbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "packuswb %%mm1, %%mm7 \n\t"
+ "movq (%%esi,%%ecx,), %%mm3 \n\t" // load c=Prior(x-bpp)
+ "pand _ActiveMask, %%mm7 \n\t"
+ "movq %%mm3, %%mm2 \n\t" // load b=Prior(x) step 1
+ "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x)
+ "punpcklbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value
+ "movq %%mm7, %%mm1 \n\t" // now mm1 will be used as
+ // Raw(x-bpp)
+ // now do Paeth for 2nd set of bytes (3-5)
+ "psrlq _ShiftBpp, %%mm2 \n\t" // load b=Prior(x) step 2
+ "punpcklbw %%mm0, %%mm1 \n\t" // unpack High bytes of a
+ "pxor %%mm7, %%mm7 \n\t"
+ "punpcklbw %%mm0, %%mm2 \n\t" // unpack High bytes of b
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) =
+ // pav + pbv = pbv + pav
+ "movq %%mm5, %%mm6 \n\t"
+ "paddw %%mm4, %%mm6 \n\t"
+
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm5, %%mm0 \n\t" // create mask pbv bytes < 0
+ "pcmpgtw %%mm4, %%mm7 \n\t" // create mask pav bytes < 0
+ "pand %%mm5, %%mm0 \n\t" // only pbv bytes < 0 in mm0
+ "pand %%mm4, %%mm7 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm0, %%mm5 \n\t"
+ "psubw %%mm7, %%mm4 \n\t"
+ "psubw %%mm0, %%mm5 \n\t"
+ "psubw %%mm7, %%mm4 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x)
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "pxor %%mm1, %%mm1 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "packuswb %%mm1, %%mm7 \n\t"
+ "movq %%mm2, %%mm3 \n\t" // load c=Prior(x-bpp) step 1
+ "pand _ActiveMask, %%mm7 \n\t"
+ "punpckhbw %%mm0, %%mm2 \n\t" // unpack High bytes of b
+ "psllq _ShiftBpp, %%mm7 \n\t" // shift bytes to 2nd group of
+ // 3 bytes
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x)
+ "psllq _ShiftBpp, %%mm3 \n\t" // load c=Prior(x-bpp) step 2
+ "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value
+ "movq %%mm7, %%mm1 \n\t"
+ "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift bytes
+ // now mm1 will be used as Raw(x-bpp)
+ // now do Paeth for 3rd, and final, set of bytes (6-7)
+ "pxor %%mm7, %%mm7 \n\t"
+ "punpckhbw %%mm0, %%mm1 \n\t" // unpack High bytes of a
+ "psubw %%mm3, %%mm4 \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "paddw %%mm5, %%mm6 \n\t"
+
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm1, %%mm1 \n\t"
+ "packuswb %%mm7, %%mm1 \n\t"
+ // step ecx to next set of 8 bytes and repeat loop til done
+ "addl $8, %%ecx \n\t"
+ "pand _ActiveMaskEnd, %%mm1 \n\t"
+ "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add Paeth predictor with
+ // Raw(x)
+
+ "cmpl _MMXLength, %%ecx \n\t"
+ "pxor %%mm0, %%mm0 \n\t" // pxor does not affect flags
+ "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ // mm3 ready to be used as Prior(x-bpp) next loop
+ "jb paeth_3lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 3 bpp
+
+ case 6:
+ //case 7: // GRR BOGUS
+ //case 5: // GRR BOGUS
+ {
+ _ActiveMask.use = 0x00000000ffffffffLL;
+ _ActiveMask2.use = 0xffffffff00000000LL;
+ _ShiftBpp.use = bpp << 3; // == bpp * 8
+ _ShiftRem.use = 64 - _ShiftBpp.use;
+
+ __asm__ __volatile__ (
+ "movl _dif, %%ecx \n\t"
+// preload "movl row, %%edi \n\t"
+// preload "movl prev_row, %%esi \n\t"
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm1 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+
+ "paeth_6lp: \n\t"
+ // must shift to position Raw(x-bpp) data
+ "psrlq _ShiftRem, %%mm1 \n\t"
+ // do first set of 4 bytes
+ "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes
+ "punpcklbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x)
+ "punpcklbw %%mm0, %%mm2 \n\t" // unpack Low bytes of b
+ // must shift to position Prior(x-bpp) data
+ "psrlq _ShiftRem, %%mm3 \n\t"
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ "punpcklbw %%mm0, %%mm3 \n\t" // unpack Low bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "packuswb %%mm1, %%mm7 \n\t"
+ "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // load c=Prior(x-bpp)
+ "pand _ActiveMask, %%mm7 \n\t"
+ "psrlq _ShiftRem, %%mm3 \n\t"
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x) step 1
+ "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor and Raw(x)
+ "movq %%mm2, %%mm6 \n\t"
+ "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value
+ "movq -8(%%edi,%%ecx,), %%mm1 \n\t"
+ "psllq _ShiftBpp, %%mm6 \n\t"
+ "movq %%mm7, %%mm5 \n\t"
+ "psrlq _ShiftRem, %%mm1 \n\t"
+ "por %%mm6, %%mm3 \n\t"
+ "psllq _ShiftBpp, %%mm5 \n\t"
+ "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ "por %%mm5, %%mm1 \n\t"
+ // do second set of 4 bytes
+ "punpckhbw %%mm0, %%mm2 \n\t" // unpack High bytes of b
+ "punpckhbw %%mm0, %%mm1 \n\t" // unpack High bytes of a
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "pxor %%mm1, %%mm1 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ // step ecx to next set of 8 bytes and repeat loop til done
+ "addl $8, %%ecx \n\t"
+ "packuswb %%mm7, %%mm1 \n\t"
+ "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add Paeth predictor with Raw(x)
+ "cmpl _MMXLength, %%ecx \n\t"
+ "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ "jb paeth_6lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 6 bpp
+
+ case 4:
+ {
+ _ActiveMask.use = 0x00000000ffffffffLL;
+
+ __asm__ __volatile__ (
+ "movl _dif, %%ecx \n\t"
+// preload "movl row, %%edi \n\t"
+// preload "movl prev_row, %%esi \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm1 \n\t" // only time should need to read
+ // a=Raw(x-bpp) bytes
+ "paeth_4lp: \n\t"
+ // do first set of 4 bytes
+ "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes
+ "punpckhbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x)
+ "punpcklbw %%mm0, %%mm2 \n\t" // unpack High bytes of b
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "packuswb %%mm1, %%mm7 \n\t"
+ "movq (%%esi,%%ecx,), %%mm3 \n\t" // load c=Prior(x-bpp)
+ "pand _ActiveMask, %%mm7 \n\t"
+ "movq %%mm3, %%mm2 \n\t" // load b=Prior(x) step 1
+ "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x)
+ "punpcklbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value
+ "movq %%mm7, %%mm1 \n\t" // now mm1 will be used as Raw(x-bpp)
+ // do second set of 4 bytes
+ "punpckhbw %%mm0, %%mm2 \n\t" // unpack Low bytes of b
+ "punpcklbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "pxor %%mm1, %%mm1 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ // step ecx to next set of 8 bytes and repeat loop til done
+ "addl $8, %%ecx \n\t"
+ "packuswb %%mm7, %%mm1 \n\t"
+ "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add predictor with Raw(x)
+ "cmpl _MMXLength, %%ecx \n\t"
+ "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ "jb paeth_4lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 4 bpp
+
+ case 8: // bpp == 8
+ {
+ _ActiveMask.use = 0x00000000ffffffffLL;
+
+ __asm__ __volatile__ (
+ "movl _dif, %%ecx \n\t"
+// preload "movl row, %%edi \n\t"
+// preload "movl prev_row, %%esi \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%ecx,), %%mm1 \n\t" // only time should need to read
+ // a=Raw(x-bpp) bytes
+ "paeth_8lp: \n\t"
+ // do first set of 4 bytes
+ "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes
+ "punpcklbw %%mm0, %%mm1 \n\t" // unpack Low bytes of a
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x)
+ "punpcklbw %%mm0, %%mm2 \n\t" // unpack Low bytes of b
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ "punpcklbw %%mm0, %%mm3 \n\t" // unpack Low bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "packuswb %%mm1, %%mm7 \n\t"
+ "movq -8(%%esi,%%ecx,), %%mm3 \n\t" // read c=Prior(x-bpp) bytes
+ "pand _ActiveMask, %%mm7 \n\t"
+ "movq (%%esi,%%ecx,), %%mm2 \n\t" // load b=Prior(x)
+ "paddb (%%edi,%%ecx,), %%mm7 \n\t" // add Paeth predictor with Raw(x)
+ "punpckhbw %%mm0, %%mm3 \n\t" // unpack High bytes of c
+ "movq %%mm7, (%%edi,%%ecx,) \n\t" // write back updated value
+ "movq -8(%%edi,%%ecx,), %%mm1 \n\t" // read a=Raw(x-bpp) bytes
+
+ // do second set of 4 bytes
+ "punpckhbw %%mm0, %%mm2 \n\t" // unpack High bytes of b
+ "punpckhbw %%mm0, %%mm1 \n\t" // unpack High bytes of a
+ // pav = p - a = (a + b - c) - a = b - c
+ "movq %%mm2, %%mm4 \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movq %%mm1, %%mm5 \n\t"
+ "psubw %%mm3, %%mm4 \n\t"
+ "pxor %%mm7, %%mm7 \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "movq %%mm4, %%mm6 \n\t"
+ "psubw %%mm3, %%mm5 \n\t"
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ "pcmpgtw %%mm4, %%mm0 \n\t" // create mask pav bytes < 0
+ "paddw %%mm5, %%mm6 \n\t"
+ "pand %%mm4, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "pcmpgtw %%mm5, %%mm7 \n\t" // create mask pbv bytes < 0
+ "psubw %%mm0, %%mm4 \n\t"
+ "pand %%mm5, %%mm7 \n\t" // only pbv bytes < 0 in mm0
+ "psubw %%mm0, %%mm4 \n\t"
+ "psubw %%mm7, %%mm5 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ "pcmpgtw %%mm6, %%mm0 \n\t" // create mask pcv bytes < 0
+ "pand %%mm6, %%mm0 \n\t" // only pav bytes < 0 in mm7
+ "psubw %%mm7, %%mm5 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ // test pa <= pb
+ "movq %%mm4, %%mm7 \n\t"
+ "psubw %%mm0, %%mm6 \n\t"
+ "pcmpgtw %%mm5, %%mm7 \n\t" // pa > pb?
+ "movq %%mm7, %%mm0 \n\t"
+ // use mm7 mask to merge pa & pb
+ "pand %%mm7, %%mm5 \n\t"
+ // use mm0 mask copy to merge a & b
+ "pand %%mm0, %%mm2 \n\t"
+ "pandn %%mm4, %%mm7 \n\t"
+ "pandn %%mm1, %%mm0 \n\t"
+ "paddw %%mm5, %%mm7 \n\t"
+ "paddw %%mm2, %%mm0 \n\t"
+ // test ((pa <= pb)? pa:pb) <= pc
+ "pcmpgtw %%mm6, %%mm7 \n\t" // pab > pc?
+ "pxor %%mm1, %%mm1 \n\t"
+ "pand %%mm7, %%mm3 \n\t"
+ "pandn %%mm0, %%mm7 \n\t"
+ "pxor %%mm1, %%mm1 \n\t"
+ "paddw %%mm3, %%mm7 \n\t"
+ "pxor %%mm0, %%mm0 \n\t"
+ // step ecx to next set of 8 bytes and repeat loop til done
+ "addl $8, %%ecx \n\t"
+ "packuswb %%mm7, %%mm1 \n\t"
+ "paddb -8(%%edi,%%ecx,), %%mm1 \n\t" // add Paeth predictor with Raw(x)
+ "cmpl _MMXLength, %%ecx \n\t"
+ "movq %%mm1, -8(%%edi,%%ecx,) \n\t" // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ "jb paeth_8lp \n\t"
+
+ : "=S" (dummy_value_S), // output regs (dummy)
+ "=D" (dummy_value_D)
+
+ : "0" (prev_row), // esi // input regs
+ "1" (row) // edi
+
+ : "%ecx" // clobber list
+#if 0 /* %mm0, ..., %mm7 not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break; // end 8 bpp
+
+ case 1: // bpp = 1
+ case 2: // bpp = 2
+ default: // bpp > 8
+ {
+ __asm__ __volatile__ (
+#ifdef __PIC__
+ "pushl %%ebx \n\t" // save Global Offset Table index
+#endif
+ "movl _dif, %%ebx \n\t"
+ "cmpl _FullLength, %%ebx \n\t"
+ "jnb paeth_dend \n\t"
+
+// preload "movl row, %%edi \n\t"
+// preload "movl prev_row, %%esi \n\t"
+ // do Paeth decode for remaining bytes
+ "movl %%ebx, %%edx \n\t"
+// preload "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx)
+ "subl %%ecx, %%edx \n\t" // edx = ebx - bpp
+ "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx
+
+ "paeth_dlp: \n\t"
+ "xorl %%eax, %%eax \n\t"
+ // pav = p - a = (a + b - c) - a = b - c
+ "movb (%%esi,%%ebx,), %%al \n\t" // load Prior(x) into al
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp)
+ "movl %%eax, _patemp \n\t" // Save pav for later use
+ "xorl %%eax, %%eax \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movb (%%edi,%%edx,), %%al \n\t" // load Raw(x-bpp) into al
+ "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp)
+ "movl %%eax, %%ecx \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "addl _patemp, %%eax \n\t" // pcv = pav + pbv
+ // pc = abs(pcv)
+ "testl $0x80000000, %%eax \n\t"
+ "jz paeth_dpca \n\t"
+ "negl %%eax \n\t" // reverse sign of neg values
+
+ "paeth_dpca: \n\t"
+ "movl %%eax, _pctemp \n\t" // save pc for later use
+ // pb = abs(pbv)
+ "testl $0x80000000, %%ecx \n\t"
+ "jz paeth_dpba \n\t"
+ "negl %%ecx \n\t" // reverse sign of neg values
+
+ "paeth_dpba: \n\t"
+ "movl %%ecx, _pbtemp \n\t" // save pb for later use
+ // pa = abs(pav)
+ "movl _patemp, %%eax \n\t"
+ "testl $0x80000000, %%eax \n\t"
+ "jz paeth_dpaa \n\t"
+ "negl %%eax \n\t" // reverse sign of neg values
+
+ "paeth_dpaa: \n\t"
+ "movl %%eax, _patemp \n\t" // save pa for later use
+ // test if pa <= pb
+ "cmpl %%ecx, %%eax \n\t"
+ "jna paeth_dabb \n\t"
+ // pa > pb; now test if pb <= pc
+ "cmpl _pctemp, %%ecx \n\t"
+ "jna paeth_dbbc \n\t"
+ // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "jmp paeth_dpaeth \n\t"
+
+ "paeth_dbbc: \n\t"
+ // pb <= pc; Raw(x) = Paeth(x) + Prior(x)
+ "movb (%%esi,%%ebx,), %%cl \n\t" // load Prior(x) into cl
+ "jmp paeth_dpaeth \n\t"
+
+ "paeth_dabb: \n\t"
+ // pa <= pb; now test if pa <= pc
+ "cmpl _pctemp, %%eax \n\t"
+ "jna paeth_dabc \n\t"
+ // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "jmp paeth_dpaeth \n\t"
+
+ "paeth_dabc: \n\t"
+ // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp)
+ "movb (%%edi,%%edx,), %%cl \n\t" // load Raw(x-bpp) into cl
+
+ "paeth_dpaeth: \n\t"
+ "incl %%ebx \n\t"
+ "incl %%edx \n\t"
+ // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256
+ "addb %%cl, -1(%%edi,%%ebx,) \n\t"
+ "cmpl _FullLength, %%ebx \n\t"
+ "jb paeth_dlp \n\t"
+
+ "paeth_dend: \n\t"
+#ifdef __PIC__
+ "popl %%ebx \n\t" // index to Global Offset Table
+#endif
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (bpp), // ecx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%edx" // clobber list
+#ifndef __PIC__
+ , "%ebx"
+#endif
+ );
+ }
+ return; // No need to go further with this one
+
+ } // end switch (bpp)
+
+ __asm__ __volatile__ (
+ // MMX acceleration complete; now do clean-up
+ // check if any remaining bytes left to decode
+#ifdef __PIC__
+ "pushl %%ebx \n\t" // save index to Global Offset Table
+#endif
+ "movl _MMXLength, %%ebx \n\t"
+ "cmpl _FullLength, %%ebx \n\t"
+ "jnb paeth_end \n\t"
+//pre "movl row, %%edi \n\t"
+//pre "movl prev_row, %%esi \n\t"
+ // do Paeth decode for remaining bytes
+ "movl %%ebx, %%edx \n\t"
+//pre "subl bpp, %%edx \n\t" // (bpp is preloaded into ecx)
+ "subl %%ecx, %%edx \n\t" // edx = ebx - bpp
+ "xorl %%ecx, %%ecx \n\t" // zero ecx before using cl & cx below
+
+ "paeth_lp2: \n\t"
+ "xorl %%eax, %%eax \n\t"
+ // pav = p - a = (a + b - c) - a = b - c
+ "movb (%%esi,%%ebx,), %%al \n\t" // load Prior(x) into al
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp)
+ "movl %%eax, _patemp \n\t" // Save pav for later use
+ "xorl %%eax, %%eax \n\t"
+ // pbv = p - b = (a + b - c) - b = a - c
+ "movb (%%edi,%%edx,), %%al \n\t" // load Raw(x-bpp) into al
+ "subl %%ecx, %%eax \n\t" // subtract Prior(x-bpp)
+ "movl %%eax, %%ecx \n\t"
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ "addl _patemp, %%eax \n\t" // pcv = pav + pbv
+ // pc = abs(pcv)
+ "testl $0x80000000, %%eax \n\t"
+ "jz paeth_pca2 \n\t"
+ "negl %%eax \n\t" // reverse sign of neg values
+
+ "paeth_pca2: \n\t"
+ "movl %%eax, _pctemp \n\t" // save pc for later use
+ // pb = abs(pbv)
+ "testl $0x80000000, %%ecx \n\t"
+ "jz paeth_pba2 \n\t"
+ "negl %%ecx \n\t" // reverse sign of neg values
+
+ "paeth_pba2: \n\t"
+ "movl %%ecx, _pbtemp \n\t" // save pb for later use
+ // pa = abs(pav)
+ "movl _patemp, %%eax \n\t"
+ "testl $0x80000000, %%eax \n\t"
+ "jz paeth_paa2 \n\t"
+ "negl %%eax \n\t" // reverse sign of neg values
+
+ "paeth_paa2: \n\t"
+ "movl %%eax, _patemp \n\t" // save pa for later use
+ // test if pa <= pb
+ "cmpl %%ecx, %%eax \n\t"
+ "jna paeth_abb2 \n\t"
+ // pa > pb; now test if pb <= pc
+ "cmpl _pctemp, %%ecx \n\t"
+ "jna paeth_bbc2 \n\t"
+ // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "jmp paeth_paeth2 \n\t"
+
+ "paeth_bbc2: \n\t"
+ // pb <= pc; Raw(x) = Paeth(x) + Prior(x)
+ "movb (%%esi,%%ebx,), %%cl \n\t" // load Prior(x) into cl
+ "jmp paeth_paeth2 \n\t"
+
+ "paeth_abb2: \n\t"
+ // pa <= pb; now test if pa <= pc
+ "cmpl _pctemp, %%eax \n\t"
+ "jna paeth_abc2 \n\t"
+ // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ "movb (%%esi,%%edx,), %%cl \n\t" // load Prior(x-bpp) into cl
+ "jmp paeth_paeth2 \n\t"
+
+ "paeth_abc2: \n\t"
+ // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp)
+ "movb (%%edi,%%edx,), %%cl \n\t" // load Raw(x-bpp) into cl
+
+ "paeth_paeth2: \n\t"
+ "incl %%ebx \n\t"
+ "incl %%edx \n\t"
+ // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256
+ "addb %%cl, -1(%%edi,%%ebx,) \n\t"
+ "cmpl _FullLength, %%ebx \n\t"
+ "jb paeth_lp2 \n\t"
+
+ "paeth_end: \n\t"
+ "EMMS \n\t" // end MMX; prep for poss. FP instrs.
+#ifdef __PIC__
+ "popl %%ebx \n\t" // restore index to Global Offset Table
+#endif
+
+ : "=c" (dummy_value_c), // output regs (dummy)
+ "=S" (dummy_value_S),
+ "=D" (dummy_value_D)
+
+ : "0" (bpp), // ecx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%edx" // clobber list (no input regs!)
+#ifndef __PIC__
+ , "%ebx"
+#endif
+ );
+
+} /* end png_read_filter_row_mmx_paeth() */
+#endif
+
+
+
+
+#ifdef PNG_THREAD_UNSAFE_OK
+//===========================================================================//
+// //
+// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ S U B //
+// //
+//===========================================================================//
+
+// Optimized code for PNG Sub filter decoder
+
+static void /* PRIVATE */
+png_read_filter_row_mmx_sub(png_row_infop row_info, png_bytep row)
+{
+ int bpp;
+ int dummy_value_a;
+ int dummy_value_D;
+
+ bpp = (row_info->pixel_depth + 7) >> 3; // calc number of bytes per pixel
+ _FullLength = row_info->rowbytes - bpp; // number of bytes to filter
+
+ __asm__ __volatile__ (
+//pre "movl row, %%edi \n\t"
+ "movl %%edi, %%esi \n\t" // lp = row
+//pre "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+//irr "xorl %%eax, %%eax \n\t"
+ // get # of bytes to alignment
+ "movl %%edi, _dif \n\t" // take start of row
+ "addl $0xf, _dif \n\t" // add 7 + 8 to incr past
+ // alignment boundary
+ "xorl %%ecx, %%ecx \n\t"
+ "andl $0xfffffff8, _dif \n\t" // mask to alignment boundary
+ "subl %%edi, _dif \n\t" // subtract from start ==> value
+ "jz sub_go \n\t" // ecx at alignment
+
+ "sub_lp1: \n\t" // fix alignment
+ "movb (%%esi,%%ecx,), %%al \n\t"
+ "addb %%al, (%%edi,%%ecx,) \n\t"
+ "incl %%ecx \n\t"
+ "cmpl _dif, %%ecx \n\t"
+ "jb sub_lp1 \n\t"
+
+ "sub_go: \n\t"
+ "movl _FullLength, %%eax \n\t"
+ "movl %%eax, %%edx \n\t"
+ "subl %%ecx, %%edx \n\t" // subtract alignment fix
+ "andl $0x00000007, %%edx \n\t" // calc bytes over mult of 8
+ "subl %%edx, %%eax \n\t" // drop over bytes from length
+ "movl %%eax, _MMXLength \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%ebx", "%ecx", "%edx" // clobber list
+ , "%esi"
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+
+ // now do the math for the rest of the row
+ switch (bpp)
+ {
+ case 3:
+ {
+ _ActiveMask.use = 0x0000ffffff000000LL;
+ _ShiftBpp.use = 24; // == 3 * 8
+ _ShiftRem.use = 40; // == 64 - 24
+
+ __asm__ __volatile__ (
+// preload "movl row, %%edi \n\t"
+ "movq _ActiveMask, %%mm7 \n\t" // load _ActiveMask for 2nd
+ // active byte group
+ "movl %%edi, %%esi \n\t" // lp = row
+// preload "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+ "movq %%mm7, %%mm6 \n\t"
+ "movl _dif, %%edx \n\t"
+ "psllq _ShiftBpp, %%mm6 \n\t" // move mask in mm6 to cover
+ // 3rd active byte group
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%edx,), %%mm1 \n\t"
+
+ "sub_3lp: \n\t" // shift data for adding first
+ "psrlq _ShiftRem, %%mm1 \n\t" // bpp bytes (no need for mask;
+ // shift clears inactive bytes)
+ // add 1st active group
+ "movq (%%edi,%%edx,), %%mm0 \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+
+ // add 2nd active group
+ "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly
+ "pand %%mm7, %%mm1 \n\t" // mask to use 2nd active group
+ "paddb %%mm1, %%mm0 \n\t"
+
+ // add 3rd active group
+ "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly
+ "pand %%mm6, %%mm1 \n\t" // mask to use 3rd active group
+ "addl $8, %%edx \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+
+ "cmpl _MMXLength, %%edx \n\t"
+ "movq %%mm0, -8(%%edi,%%edx,) \n\t" // write updated Raws to array
+ "movq %%mm0, %%mm1 \n\t" // prep 1st add at top of loop
+ "jb sub_3lp \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%edx", "%esi" // clobber list
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break;
+
+ case 1:
+ {
+ __asm__ __volatile__ (
+ "movl _dif, %%edx \n\t"
+// preload "movl row, %%edi \n\t"
+ "cmpl _FullLength, %%edx \n\t"
+ "jnb sub_1end \n\t"
+ "movl %%edi, %%esi \n\t" // lp = row
+ "xorl %%eax, %%eax \n\t"
+// preload "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+
+ "sub_1lp: \n\t"
+ "movb (%%esi,%%edx,), %%al \n\t"
+ "addb %%al, (%%edi,%%edx,) \n\t"
+ "incl %%edx \n\t"
+ "cmpl _FullLength, %%edx \n\t"
+ "jb sub_1lp \n\t"
+
+ "sub_1end: \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%edx", "%esi" // clobber list
+ );
+ }
+ return;
+
+ case 6:
+ case 4:
+ //case 7: // GRR BOGUS
+ //case 5: // GRR BOGUS
+ {
+ _ShiftBpp.use = bpp << 3;
+ _ShiftRem.use = 64 - _ShiftBpp.use;
+
+ __asm__ __volatile__ (
+// preload "movl row, %%edi \n\t"
+ "movl _dif, %%edx \n\t"
+ "movl %%edi, %%esi \n\t" // lp = row
+// preload "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%edx,), %%mm1 \n\t"
+
+ "sub_4lp: \n\t" // shift data for adding first
+ "psrlq _ShiftRem, %%mm1 \n\t" // bpp bytes (no need for mask;
+ // shift clears inactive bytes)
+ "movq (%%edi,%%edx,), %%mm0 \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+
+ // add 2nd active group
+ "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly
+ "addl $8, %%edx \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+
+ "cmpl _MMXLength, %%edx \n\t"
+ "movq %%mm0, -8(%%edi,%%edx,) \n\t"
+ "movq %%mm0, %%mm1 \n\t" // prep 1st add at top of loop
+ "jb sub_4lp \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%edx", "%esi" // clobber list
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1"
+#endif
+ );
+ }
+ break;
+
+ case 2:
+ {
+ _ActiveMask.use = 0x00000000ffff0000LL;
+ _ShiftBpp.use = 16; // == 2 * 8
+ _ShiftRem.use = 48; // == 64 - 16
+
+ __asm__ __volatile__ (
+ "movq _ActiveMask, %%mm7 \n\t" // load _ActiveMask for 2nd
+ // active byte group
+ "movl _dif, %%edx \n\t"
+ "movq %%mm7, %%mm6 \n\t"
+// preload "movl row, %%edi \n\t"
+ "psllq _ShiftBpp, %%mm6 \n\t" // move mask in mm6 to cover
+ // 3rd active byte group
+ "movl %%edi, %%esi \n\t" // lp = row
+ "movq %%mm6, %%mm5 \n\t"
+// preload "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+ "psllq _ShiftBpp, %%mm5 \n\t" // move mask in mm5 to cover
+ // 4th active byte group
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%edx,), %%mm1 \n\t"
+
+ "sub_2lp: \n\t" // shift data for adding first
+ "psrlq _ShiftRem, %%mm1 \n\t" // bpp bytes (no need for mask;
+ // shift clears inactive bytes)
+ // add 1st active group
+ "movq (%%edi,%%edx,), %%mm0 \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+
+ // add 2nd active group
+ "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly
+ "pand %%mm7, %%mm1 \n\t" // mask to use 2nd active group
+ "paddb %%mm1, %%mm0 \n\t"
+
+ // add 3rd active group
+ "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly
+ "pand %%mm6, %%mm1 \n\t" // mask to use 3rd active group
+ "paddb %%mm1, %%mm0 \n\t"
+
+ // add 4th active group
+ "movq %%mm0, %%mm1 \n\t" // mov updated Raws to mm1
+ "psllq _ShiftBpp, %%mm1 \n\t" // shift data to pos. correctly
+ "pand %%mm5, %%mm1 \n\t" // mask to use 4th active group
+ "addl $8, %%edx \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+ "cmpl _MMXLength, %%edx \n\t"
+ "movq %%mm0, -8(%%edi,%%edx,) \n\t" // write updated Raws to array
+ "movq %%mm0, %%mm1 \n\t" // prep 1st add at top of loop
+ "jb sub_2lp \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%edx", "%esi" // clobber list
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break;
+
+ case 8:
+ {
+ __asm__ __volatile__ (
+// preload "movl row, %%edi \n\t"
+ "movl _dif, %%edx \n\t"
+ "movl %%edi, %%esi \n\t" // lp = row
+// preload "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+ "movl _MMXLength, %%ecx \n\t"
+
+ // prime the pump: load the first Raw(x-bpp) data set
+ "movq -8(%%edi,%%edx,), %%mm7 \n\t"
+ "andl $0x0000003f, %%ecx \n\t" // calc bytes over mult of 64
+
+ "sub_8lp: \n\t"
+ "movq (%%edi,%%edx,), %%mm0 \n\t" // load Sub(x) for 1st 8 bytes
+ "paddb %%mm7, %%mm0 \n\t"
+ "movq 8(%%edi,%%edx,), %%mm1 \n\t" // load Sub(x) for 2nd 8 bytes
+ "movq %%mm0, (%%edi,%%edx,) \n\t" // write Raw(x) for 1st 8 bytes
+
+ // Now mm0 will be used as Raw(x-bpp) for the 2nd group of 8 bytes.
+ // This will be repeated for each group of 8 bytes with the 8th
+ // group being used as the Raw(x-bpp) for the 1st group of the
+ // next loop.
+
+ "paddb %%mm0, %%mm1 \n\t"
+ "movq 16(%%edi,%%edx,), %%mm2 \n\t" // load Sub(x) for 3rd 8 bytes
+ "movq %%mm1, 8(%%edi,%%edx,) \n\t" // write Raw(x) for 2nd 8 bytes
+ "paddb %%mm1, %%mm2 \n\t"
+ "movq 24(%%edi,%%edx,), %%mm3 \n\t" // load Sub(x) for 4th 8 bytes
+ "movq %%mm2, 16(%%edi,%%edx,) \n\t" // write Raw(x) for 3rd 8 bytes
+ "paddb %%mm2, %%mm3 \n\t"
+ "movq 32(%%edi,%%edx,), %%mm4 \n\t" // load Sub(x) for 5th 8 bytes
+ "movq %%mm3, 24(%%edi,%%edx,) \n\t" // write Raw(x) for 4th 8 bytes
+ "paddb %%mm3, %%mm4 \n\t"
+ "movq 40(%%edi,%%edx,), %%mm5 \n\t" // load Sub(x) for 6th 8 bytes
+ "movq %%mm4, 32(%%edi,%%edx,) \n\t" // write Raw(x) for 5th 8 bytes
+ "paddb %%mm4, %%mm5 \n\t"
+ "movq 48(%%edi,%%edx,), %%mm6 \n\t" // load Sub(x) for 7th 8 bytes
+ "movq %%mm5, 40(%%edi,%%edx,) \n\t" // write Raw(x) for 6th 8 bytes
+ "paddb %%mm5, %%mm6 \n\t"
+ "movq 56(%%edi,%%edx,), %%mm7 \n\t" // load Sub(x) for 8th 8 bytes
+ "movq %%mm6, 48(%%edi,%%edx,) \n\t" // write Raw(x) for 7th 8 bytes
+ "addl $64, %%edx \n\t"
+ "paddb %%mm6, %%mm7 \n\t"
+ "cmpl %%ecx, %%edx \n\t"
+ "movq %%mm7, -8(%%edi,%%edx,) \n\t" // write Raw(x) for 8th 8 bytes
+ "jb sub_8lp \n\t"
+
+ "cmpl _MMXLength, %%edx \n\t"
+ "jnb sub_8lt8 \n\t"
+
+ "sub_8lpA: \n\t"
+ "movq (%%edi,%%edx,), %%mm0 \n\t"
+ "addl $8, %%edx \n\t"
+ "paddb %%mm7, %%mm0 \n\t"
+ "cmpl _MMXLength, %%edx \n\t"
+ "movq %%mm0, -8(%%edi,%%edx,) \n\t" // -8 to offset early addl edx
+ "movq %%mm0, %%mm7 \n\t" // move calculated Raw(x) data
+ // to mm1 to be new Raw(x-bpp)
+ // for next loop
+ "jb sub_8lpA \n\t"
+
+ "sub_8lt8: \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%ecx", "%edx", "%esi" // clobber list
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3", "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+ }
+ break;
+
+ default: // bpp greater than 8 bytes GRR BOGUS
+ {
+ __asm__ __volatile__ (
+ "movl _dif, %%edx \n\t"
+// preload "movl row, %%edi \n\t"
+ "movl %%edi, %%esi \n\t" // lp = row
+// preload "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+
+ "sub_Alp: \n\t"
+ "movq (%%edi,%%edx,), %%mm0 \n\t"
+ "movq (%%esi,%%edx,), %%mm1 \n\t"
+ "addl $8, %%edx \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+ "cmpl _MMXLength, %%edx \n\t"
+ "movq %%mm0, -8(%%edi,%%edx,) \n\t" // mov does not affect flags;
+ // -8 to offset addl edx
+ "jb sub_Alp \n\t"
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%edx", "%esi" // clobber list
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1"
+#endif
+ );
+ }
+ break;
+
+ } // end switch (bpp)
+
+ __asm__ __volatile__ (
+ "movl _MMXLength, %%edx \n\t"
+//pre "movl row, %%edi \n\t"
+ "cmpl _FullLength, %%edx \n\t"
+ "jnb sub_end \n\t"
+
+ "movl %%edi, %%esi \n\t" // lp = row
+//pre "movl bpp, %%eax \n\t"
+ "addl %%eax, %%edi \n\t" // rp = row + bpp
+ "xorl %%eax, %%eax \n\t"
+
+ "sub_lp2: \n\t"
+ "movb (%%esi,%%edx,), %%al \n\t"
+ "addb %%al, (%%edi,%%edx,) \n\t"
+ "incl %%edx \n\t"
+ "cmpl _FullLength, %%edx \n\t"
+ "jb sub_lp2 \n\t"
+
+ "sub_end: \n\t"
+ "EMMS \n\t" // end MMX instructions
+
+ : "=a" (dummy_value_a), // 0 // output regs (dummy)
+ "=D" (dummy_value_D) // 1
+
+ : "0" (bpp), // eax // input regs
+ "1" (row) // edi
+
+ : "%edx", "%esi" // clobber list
+ );
+
+} // end of png_read_filter_row_mmx_sub()
+#endif
+
+
+
+
+//===========================================================================//
+// //
+// P N G _ R E A D _ F I L T E R _ R O W _ M M X _ U P //
+// //
+//===========================================================================//
+
+// Optimized code for PNG Up filter decoder
+
+static void /* PRIVATE */
+png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row,
+ png_bytep prev_row)
+{
+ png_uint_32 len;
+ int dummy_value_d; // fix 'forbidden register 3 (dx) was spilled' error
+ int dummy_value_S;
+ int dummy_value_D;
+
+ len = row_info->rowbytes; // number of bytes to filter
+
+ __asm__ __volatile__ (
+//pre "movl row, %%edi \n\t"
+ // get # of bytes to alignment
+#ifdef __PIC__
+ "pushl %%ebx \n\t"
+#endif
+ "movl %%edi, %%ecx \n\t"
+ "xorl %%ebx, %%ebx \n\t"
+ "addl $0x7, %%ecx \n\t"
+ "xorl %%eax, %%eax \n\t"
+ "andl $0xfffffff8, %%ecx \n\t"
+//pre "movl prev_row, %%esi \n\t"
+ "subl %%edi, %%ecx \n\t"
+ "jz up_go \n\t"
+
+ "up_lp1: \n\t" // fix alignment
+ "movb (%%edi,%%ebx,), %%al \n\t"
+ "addb (%%esi,%%ebx,), %%al \n\t"
+ "incl %%ebx \n\t"
+ "cmpl %%ecx, %%ebx \n\t"
+ "movb %%al, -1(%%edi,%%ebx,) \n\t" // mov does not affect flags; -1 to
+ "jb up_lp1 \n\t" // offset incl ebx
+
+ "up_go: \n\t"
+//pre "movl len, %%edx \n\t"
+ "movl %%edx, %%ecx \n\t"
+ "subl %%ebx, %%edx \n\t" // subtract alignment fix
+ "andl $0x0000003f, %%edx \n\t" // calc bytes over mult of 64
+ "subl %%edx, %%ecx \n\t" // drop over bytes from length
+
+ // unrolled loop - use all MMX registers and interleave to reduce
+ // number of branch instructions (loops) and reduce partial stalls
+ "up_loop: \n\t"
+ "movq (%%esi,%%ebx,), %%mm1 \n\t"
+ "movq (%%edi,%%ebx,), %%mm0 \n\t"
+ "movq 8(%%esi,%%ebx,), %%mm3 \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+ "movq 8(%%edi,%%ebx,), %%mm2 \n\t"
+ "movq %%mm0, (%%edi,%%ebx,) \n\t"
+ "paddb %%mm3, %%mm2 \n\t"
+ "movq 16(%%esi,%%ebx,), %%mm5 \n\t"
+ "movq %%mm2, 8(%%edi,%%ebx,) \n\t"
+ "movq 16(%%edi,%%ebx,), %%mm4 \n\t"
+ "movq 24(%%esi,%%ebx,), %%mm7 \n\t"
+ "paddb %%mm5, %%mm4 \n\t"
+ "movq 24(%%edi,%%ebx,), %%mm6 \n\t"
+ "movq %%mm4, 16(%%edi,%%ebx,) \n\t"
+ "paddb %%mm7, %%mm6 \n\t"
+ "movq 32(%%esi,%%ebx,), %%mm1 \n\t"
+ "movq %%mm6, 24(%%edi,%%ebx,) \n\t"
+ "movq 32(%%edi,%%ebx,), %%mm0 \n\t"
+ "movq 40(%%esi,%%ebx,), %%mm3 \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+ "movq 40(%%edi,%%ebx,), %%mm2 \n\t"
+ "movq %%mm0, 32(%%edi,%%ebx,) \n\t"
+ "paddb %%mm3, %%mm2 \n\t"
+ "movq 48(%%esi,%%ebx,), %%mm5 \n\t"
+ "movq %%mm2, 40(%%edi,%%ebx,) \n\t"
+ "movq 48(%%edi,%%ebx,), %%mm4 \n\t"
+ "movq 56(%%esi,%%ebx,), %%mm7 \n\t"
+ "paddb %%mm5, %%mm4 \n\t"
+ "movq 56(%%edi,%%ebx,), %%mm6 \n\t"
+ "movq %%mm4, 48(%%edi,%%ebx,) \n\t"
+ "addl $64, %%ebx \n\t"
+ "paddb %%mm7, %%mm6 \n\t"
+ "cmpl %%ecx, %%ebx \n\t"
+ "movq %%mm6, -8(%%edi,%%ebx,) \n\t" // (+56)movq does not affect flags;
+ "jb up_loop \n\t" // -8 to offset addl ebx
+
+ "cmpl $0, %%edx \n\t" // test for bytes over mult of 64
+ "jz up_end \n\t"
+
+ "cmpl $8, %%edx \n\t" // test for less than 8 bytes
+ "jb up_lt8 \n\t" // [added by lcreeve@netins.net]
+
+ "addl %%edx, %%ecx \n\t"
+ "andl $0x00000007, %%edx \n\t" // calc bytes over mult of 8
+ "subl %%edx, %%ecx \n\t" // drop over bytes from length
+ "jz up_lt8 \n\t"
+
+ "up_lpA: \n\t" // use MMX regs to update 8 bytes sim.
+ "movq (%%esi,%%ebx,), %%mm1 \n\t"
+ "movq (%%edi,%%ebx,), %%mm0 \n\t"
+ "addl $8, %%ebx \n\t"
+ "paddb %%mm1, %%mm0 \n\t"
+ "cmpl %%ecx, %%ebx \n\t"
+ "movq %%mm0, -8(%%edi,%%ebx,) \n\t" // movq does not affect flags; -8 to
+ "jb up_lpA \n\t" // offset add ebx
+ "cmpl $0, %%edx \n\t" // test for bytes over mult of 8
+ "jz up_end \n\t"
+
+ "up_lt8: \n\t"
+ "xorl %%eax, %%eax \n\t"
+ "addl %%edx, %%ecx \n\t" // move over byte count into counter
+
+ "up_lp2: \n\t" // use x86 regs for remaining bytes
+ "movb (%%edi,%%ebx,), %%al \n\t"
+ "addb (%%esi,%%ebx,), %%al \n\t"
+ "incl %%ebx \n\t"
+ "cmpl %%ecx, %%ebx \n\t"
+ "movb %%al, -1(%%edi,%%ebx,) \n\t" // mov does not affect flags; -1 to
+ "jb up_lp2 \n\t" // offset inc ebx
+
+ "up_end: \n\t"
+ "EMMS \n\t" // conversion of filtered row complete
+#ifdef __PIC__
+ "popl %%ebx \n\t"
+#endif
+
+ : "=d" (dummy_value_d), // 0 // output regs (dummy)
+ "=S" (dummy_value_S), // 1
+ "=D" (dummy_value_D) // 2
+
+ : "0" (len), // edx // input regs
+ "1" (prev_row), // esi
+ "2" (row) // edi
+
+ : "%eax", "%ebx", "%ecx" // clobber list (no input regs!)
+
+#if 0 /* MMX regs (%mm0, etc.) not supported by gcc 2.7.2.3 or egcs 1.1 */
+ , "%mm0", "%mm1", "%mm2", "%mm3"
+ , "%mm4", "%mm5", "%mm6", "%mm7"
+#endif
+ );
+
+} // end of png_read_filter_row_mmx_up()
+
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+
+
+
+
+/*===========================================================================*/
+/* */
+/* P N G _ R E A D _ F I L T E R _ R O W */
+/* */
+/*===========================================================================*/
+
+
+/* Optimized png_read_filter_row routines */
+
+void /* PRIVATE */
+png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
+ row, png_bytep prev_row, int filter)
+{
+#ifdef PNG_DEBUG
+ char filnm[10];
+#endif
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+/* GRR: these are superseded by png_ptr->asm_flags: */
+#define UseMMX_sub 1 // GRR: converted 20000730
+#define UseMMX_up 1 // GRR: converted 20000729
+#define UseMMX_avg 1 // GRR: converted 20000828 (+ 16-bit bugfix 20000916)
+#define UseMMX_paeth 1 // GRR: converted 20000828
+
+ if (_mmx_supported == 2) {
+ /* this should have happened in png_init_mmx_flags() already */
+ png_warning(png_ptr, "asm_flags may not have been initialized");
+ png_mmx_support();
+ }
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+
+#ifdef PNG_DEBUG
+ png_debug(1, "in png_read_filter_row (pnggccrd.c)\n");
+ switch (filter)
+ {
+ case 0: sprintf(filnm, "none");
+ break;
+ case 1: sprintf(filnm, "sub-%s",
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "MMX" :
+#endif
+#endif
+"x86");
+ break;
+ case 2: sprintf(filnm, "up-%s",
+#ifdef PNG_ASSEMBLER_CODE_SUPPORTED
+#if !defined(PNG_1_0_X)
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "MMX" :
+#endif
+#endif
+ "x86");
+ break;
+ case 3: sprintf(filnm, "avg-%s",
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "MMX" :
+#endif
+#endif
+ "x86");
+ break;
+ case 4: sprintf(filnm, "Paeth-%s",
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "MMX":
+#endif
+#endif
+"x86");
+ break;
+ default: sprintf(filnm, "unknw");
+ break;
+ }
+ png_debug2(0, "row_number=%5ld, %5s, ", png_ptr->row_number, filnm);
+ png_debug1(0, "row=0x%08lx, ", (unsigned long)row);
+ png_debug2(0, "pixdepth=%2d, bytes=%d, ", (int)row_info->pixel_depth,
+ (int)((row_info->pixel_depth + 7) >> 3));
+ png_debug1(0,"rowbytes=%8ld\n", row_info->rowbytes);
+#endif /* PNG_DEBUG */
+
+ switch (filter)
+ {
+ case PNG_FILTER_VALUE_NONE:
+ break;
+
+ case PNG_FILTER_VALUE_SUB:
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_read_filter_row_mmx_sub(row_info, row);
+ }
+ else
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ png_uint_32 i;
+ png_uint_32 istop = row_info->rowbytes;
+ png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3;
+ png_bytep rp = row + bpp;
+ png_bytep lp = row;
+
+ for (i = bpp; i < istop; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff);
+ rp++;
+ }
+ } /* end !UseMMX_sub */
+ break;
+
+ case PNG_FILTER_VALUE_UP:
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_read_filter_row_mmx_up(row_info, row, prev_row);
+ }
+ else
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ png_uint_32 i;
+ png_uint_32 istop = row_info->rowbytes;
+ png_bytep rp = row;
+ png_bytep pp = prev_row;
+
+ for (i = 0; i < istop; ++i)
+ {
+ *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
+ rp++;
+ }
+ } /* end !UseMMX_up */
+ break;
+
+ case PNG_FILTER_VALUE_AVG:
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_read_filter_row_mmx_avg(row_info, row, prev_row);
+ }
+ else
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ png_uint_32 i;
+ png_bytep rp = row;
+ png_bytep pp = prev_row;
+ png_bytep lp = row;
+ png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3;
+ png_uint_32 istop = row_info->rowbytes - bpp;
+
+ for (i = 0; i < bpp; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) +
+ ((int)(*pp++) >> 1)) & 0xff);
+ rp++;
+ }
+
+ for (i = 0; i < istop; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) +
+ ((int)(*pp++ + *lp++) >> 1)) & 0xff);
+ rp++;
+ }
+ } /* end !UseMMX_avg */
+ break;
+
+ case PNG_FILTER_VALUE_PAETH:
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_THREAD_UNSAFE_OK)
+#if !defined(PNG_1_0_X)
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+#else
+ if (_mmx_supported)
+#endif
+ {
+ png_read_filter_row_mmx_paeth(row_info, row, prev_row);
+ }
+ else
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED */
+ {
+ png_uint_32 i;
+ png_bytep rp = row;
+ png_bytep pp = prev_row;
+ png_bytep lp = row;
+ png_bytep cp = prev_row;
+ png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3;
+ png_uint_32 istop = row_info->rowbytes - bpp;
+
+ for (i = 0; i < bpp; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
+ rp++;
+ }
+
+ for (i = 0; i < istop; i++) /* use leftover rp,pp */
+ {
+ int a, b, c, pa, pb, pc, p;
+
+ a = *lp++;
+ b = *pp++;
+ c = *cp++;
+
+ p = b - c;
+ pc = a - c;
+
+#ifdef PNG_USE_ABS
+ pa = abs(p);
+ pb = abs(pc);
+ pc = abs(p + pc);
+#else
+ pa = p < 0 ? -p : p;
+ pb = pc < 0 ? -pc : pc;
+ pc = (p + pc) < 0 ? -(p + pc) : p + pc;
+#endif
+
+ /*
+ if (pa <= pb && pa <= pc)
+ p = a;
+ else if (pb <= pc)
+ p = b;
+ else
+ p = c;
+ */
+
+ p = (pa <= pb && pa <= pc) ? a : (pb <= pc) ? b : c;
+
+ *rp = (png_byte)(((int)(*rp) + p) & 0xff);
+ rp++;
+ }
+ } /* end !UseMMX_paeth */
+ break;
+
+ default:
+ png_warning(png_ptr, "Ignoring bad row-filter type");
+ *row=0;
+ break;
+ }
+}
+
+#endif /* PNG_HAVE_ASSEMBLER_READ_FILTER_ROW */
+
+
+/*===========================================================================*/
+/* */
+/* P N G _ M M X _ S U P P O R T */
+/* */
+/*===========================================================================*/
+
+/* GRR NOTES: (1) the following code assumes 386 or better (pushfl/popfl)
+ * (2) all instructions compile with gcc 2.7.2.3 and later
+ * (3) the function is moved down here to prevent gcc from
+ * inlining it in multiple places and then barfing be-
+ * cause the ".NOT_SUPPORTED" label is multiply defined
+ * [is there a way to signal that a *single* function should
+ * not be inlined? is there a way to modify the label for
+ * each inlined instance, e.g., by appending _1, _2, etc.?
+ * maybe if don't use leading "." in label name? (nope...sigh)]
+ */
+
+int PNGAPI
+png_mmx_support(void)
+{
+#if defined(PNG_MMX_CODE_SUPPORTED)
+ __asm__ __volatile__ (
+ "pushl %%ebx \n\t" // ebx gets clobbered by CPUID instruction
+ "pushl %%ecx \n\t" // so does ecx...
+ "pushl %%edx \n\t" // ...and edx (but ecx & edx safe on Linux)
+// ".byte 0x66 \n\t" // convert 16-bit pushf to 32-bit pushfd
+// "pushf \n\t" // 16-bit pushf
+ "pushfl \n\t" // save Eflag to stack
+ "popl %%eax \n\t" // get Eflag from stack into eax
+ "movl %%eax, %%ecx \n\t" // make another copy of Eflag in ecx
+ "xorl $0x200000, %%eax \n\t" // toggle ID bit in Eflag (i.e., bit 21)
+ "pushl %%eax \n\t" // save modified Eflag back to stack
+// ".byte 0x66 \n\t" // convert 16-bit popf to 32-bit popfd
+// "popf \n\t" // 16-bit popf
+ "popfl \n\t" // restore modified value to Eflag reg
+ "pushfl \n\t" // save Eflag to stack
+ "popl %%eax \n\t" // get Eflag from stack
+ "pushl %%ecx \n\t" // save original Eflag to stack
+ "popfl \n\t" // restore original Eflag
+ "xorl %%ecx, %%eax \n\t" // compare new Eflag with original Eflag
+ "jz .NOT_SUPPORTED \n\t" // if same, CPUID instr. is not supported
+
+ "xorl %%eax, %%eax \n\t" // set eax to zero
+// ".byte 0x0f, 0xa2 \n\t" // CPUID instruction (two-byte opcode)
+ "cpuid \n\t" // get the CPU identification info
+ "cmpl $1, %%eax \n\t" // make sure eax return non-zero value
+ "jl .NOT_SUPPORTED \n\t" // if eax is zero, MMX is not supported
+
+ "xorl %%eax, %%eax \n\t" // set eax to zero and...
+ "incl %%eax \n\t" // ...increment eax to 1. This pair is
+ // faster than the instruction "mov eax, 1"
+ "cpuid \n\t" // get the CPU identification info again
+ "andl $0x800000, %%edx \n\t" // mask out all bits but MMX bit (23)
+ "cmpl $0, %%edx \n\t" // 0 = MMX not supported
+ "jz .NOT_SUPPORTED \n\t" // non-zero = yes, MMX IS supported
+
+ "movl $1, %%eax \n\t" // set return value to 1
+ "jmp .RETURN \n\t" // DONE: have MMX support
+
+ ".NOT_SUPPORTED: \n\t" // target label for jump instructions
+ "movl $0, %%eax \n\t" // set return value to 0
+ ".RETURN: \n\t" // target label for jump instructions
+ "movl %%eax, _mmx_supported \n\t" // save in global static variable, too
+ "popl %%edx \n\t" // restore edx
+ "popl %%ecx \n\t" // restore ecx
+ "popl %%ebx \n\t" // restore ebx
+
+// "ret \n\t" // DONE: no MMX support
+ // (fall through to standard C "ret")
+
+ : // output list (none)
+
+ : // any variables used on input (none)
+
+ : "%eax" // clobber list
+// , "%ebx", "%ecx", "%edx" // GRR: we handle these manually
+// , "memory" // if write to a variable gcc thought was in a reg
+// , "cc" // "condition codes" (flag bits)
+ );
+#else
+ _mmx_supported = 0;
+#endif /* PNG_MMX_CODE_SUPPORTED */
+
+ return _mmx_supported;
+}
+
+
+#endif /* PNG_USE_PNGGCCRD */
--- /dev/null
+/* pngvcrd.c - mixed C/assembler version of utilities to read a PNG file
+ *
+ * For Intel x86 CPU and Microsoft Visual C++ compiler
+ *
+ * libpng version 1.2.4 - July 8, 2002
+ * For conditions of distribution and use, see copyright notice in png.h
+ * Copyright (c) 1998-2002 Glenn Randers-Pehrson
+ * Copyright (c) 1998, Intel Corporation
+ *
+ * Contributed by Nirav Chhatrapati, Intel Corporation, 1998
+ * Interface to libpng contributed by Gilles Vollant, 1999
+ *
+ *
+ * In png_do_read_interlace() in libpng versions 1.0.3a through 1.0.4d,
+ * a sign error in the post-MMX cleanup code for each pixel_depth resulted
+ * in bad pixels at the beginning of some rows of some images, and also
+ * (due to out-of-range memory reads and writes) caused heap corruption
+ * when compiled with MSVC 6.0. The error was fixed in version 1.0.4e.
+ *
+ * [png_read_filter_row_mmx_avg() bpp == 2 bugfix, GRR 20000916]
+ *
+ * [runtime MMX configuration, GRR 20010102]
+ *
+ */
+
+#define PNG_INTERNAL
+#include "png.h"
+
+#if defined(PNG_ASSEMBLER_CODE_SUPPORTED) && defined(PNG_USE_PNGVCRD)
+
+static int mmx_supported=2;
+
+
+int PNGAPI
+png_mmx_support(void)
+{
+ int mmx_supported_local = 0;
+ _asm {
+ push ebx //CPUID will trash these
+ push ecx
+ push edx
+
+ pushfd //Save Eflag to stack
+ pop eax //Get Eflag from stack into eax
+ mov ecx, eax //Make another copy of Eflag in ecx
+ xor eax, 0x200000 //Toggle ID bit in Eflag [i.e. bit(21)]
+ push eax //Save modified Eflag back to stack
+
+ popfd //Restored modified value back to Eflag reg
+ pushfd //Save Eflag to stack
+ pop eax //Get Eflag from stack
+ push ecx // save original Eflag to stack
+ popfd // restore original Eflag
+ xor eax, ecx //Compare the new Eflag with the original Eflag
+ jz NOT_SUPPORTED //If the same, CPUID instruction is not supported,
+ //skip following instructions and jump to
+ //NOT_SUPPORTED label
+
+ xor eax, eax //Set eax to zero
+
+ _asm _emit 0x0f //CPUID instruction (two bytes opcode)
+ _asm _emit 0xa2
+
+ cmp eax, 1 //make sure eax return non-zero value
+ jl NOT_SUPPORTED //If eax is zero, mmx not supported
+
+ xor eax, eax //set eax to zero
+ inc eax //Now increment eax to 1. This instruction is
+ //faster than the instruction "mov eax, 1"
+
+ _asm _emit 0x0f //CPUID instruction
+ _asm _emit 0xa2
+
+ and edx, 0x00800000 //mask out all bits but mmx bit(24)
+ cmp edx, 0 // 0 = mmx not supported
+ jz NOT_SUPPORTED // non-zero = Yes, mmx IS supported
+
+ mov mmx_supported_local, 1 //set return value to 1
+
+NOT_SUPPORTED:
+ mov eax, mmx_supported_local //move return value to eax
+ pop edx //CPUID trashed these
+ pop ecx
+ pop ebx
+ }
+
+ //mmx_supported_local=0; // test code for force don't support MMX
+ //printf("MMX : %u (1=MMX supported)\n",mmx_supported_local);
+
+ mmx_supported = mmx_supported_local;
+ return mmx_supported_local;
+}
+
+/* Combines the row recently read in with the previous row.
+ This routine takes care of alpha and transparency if requested.
+ This routine also handles the two methods of progressive display
+ of interlaced images, depending on the mask value.
+ The mask value describes which pixels are to be combined with
+ the row. The pattern always repeats every 8 pixels, so just 8
+ bits are needed. A one indicates the pixel is to be combined; a
+ zero indicates the pixel is to be skipped. This is in addition
+ to any alpha or transparency value associated with the pixel. If
+ you want all pixels to be combined, pass 0xff (255) in mask. */
+
+/* Use this routine for x86 platform - uses faster MMX routine if machine
+ supports MMX */
+
+void /* PRIVATE */
+png_combine_row(png_structp png_ptr, png_bytep row, int mask)
+{
+#ifdef PNG_USE_LOCAL_ARRAYS
+ const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+#endif
+
+ png_debug(1,"in png_combine_row_asm\n");
+
+ if (mmx_supported == 2) {
+ /* this should have happened in png_init_mmx_flags() already */
+ png_warning(png_ptr, "asm_flags may not have been initialized");
+ png_mmx_support();
+ }
+
+ if (mask == 0xff)
+ {
+ png_memcpy(row, png_ptr->row_buf + 1,
+ (png_size_t)((png_ptr->width * png_ptr->row_info.pixel_depth + 7) >> 3));
+ }
+ /* GRR: add "else if (mask == 0)" case?
+ * or does png_combine_row() not even get called in that case? */
+ else
+ {
+ switch (png_ptr->row_info.pixel_depth)
+ {
+ case 1:
+ {
+ png_bytep sp;
+ png_bytep dp;
+ int s_inc, s_start, s_end;
+ int m;
+ int shift;
+ png_uint_32 i;
+
+ sp = png_ptr->row_buf + 1;
+ dp = row;
+ m = 0x80;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ {
+ s_start = 0;
+ s_end = 7;
+ s_inc = 1;
+ }
+ else
+#endif
+ {
+ s_start = 7;
+ s_end = 0;
+ s_inc = -1;
+ }
+
+ shift = s_start;
+
+ for (i = 0; i < png_ptr->width; i++)
+ {
+ if (m & mask)
+ {
+ int value;
+
+ value = (*sp >> shift) & 0x1;
+ *dp &= (png_byte)((0x7f7f >> (7 - shift)) & 0xff);
+ *dp |= (png_byte)(value << shift);
+ }
+
+ if (shift == s_end)
+ {
+ shift = s_start;
+ sp++;
+ dp++;
+ }
+ else
+ shift += s_inc;
+
+ if (m == 1)
+ m = 0x80;
+ else
+ m >>= 1;
+ }
+ break;
+ }
+
+ case 2:
+ {
+ png_bytep sp;
+ png_bytep dp;
+ int s_start, s_end, s_inc;
+ int m;
+ int shift;
+ png_uint_32 i;
+ int value;
+
+ sp = png_ptr->row_buf + 1;
+ dp = row;
+ m = 0x80;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ {
+ s_start = 0;
+ s_end = 6;
+ s_inc = 2;
+ }
+ else
+#endif
+ {
+ s_start = 6;
+ s_end = 0;
+ s_inc = -2;
+ }
+
+ shift = s_start;
+
+ for (i = 0; i < png_ptr->width; i++)
+ {
+ if (m & mask)
+ {
+ value = (*sp >> shift) & 0x3;
+ *dp &= (png_byte)((0x3f3f >> (6 - shift)) & 0xff);
+ *dp |= (png_byte)(value << shift);
+ }
+
+ if (shift == s_end)
+ {
+ shift = s_start;
+ sp++;
+ dp++;
+ }
+ else
+ shift += s_inc;
+ if (m == 1)
+ m = 0x80;
+ else
+ m >>= 1;
+ }
+ break;
+ }
+
+ case 4:
+ {
+ png_bytep sp;
+ png_bytep dp;
+ int s_start, s_end, s_inc;
+ int m;
+ int shift;
+ png_uint_32 i;
+ int value;
+
+ sp = png_ptr->row_buf + 1;
+ dp = row;
+ m = 0x80;
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (png_ptr->transformations & PNG_PACKSWAP)
+ {
+ s_start = 0;
+ s_end = 4;
+ s_inc = 4;
+ }
+ else
+#endif
+ {
+ s_start = 4;
+ s_end = 0;
+ s_inc = -4;
+ }
+ shift = s_start;
+
+ for (i = 0; i < png_ptr->width; i++)
+ {
+ if (m & mask)
+ {
+ value = (*sp >> shift) & 0xf;
+ *dp &= (png_byte)((0xf0f >> (4 - shift)) & 0xff);
+ *dp |= (png_byte)(value << shift);
+ }
+
+ if (shift == s_end)
+ {
+ shift = s_start;
+ sp++;
+ dp++;
+ }
+ else
+ shift += s_inc;
+ if (m == 1)
+ m = 0x80;
+ else
+ m >>= 1;
+ }
+ break;
+ }
+
+ case 8:
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+ png_uint_32 len;
+ int m;
+ int diff, unmask;
+
+ __int64 mask0=0x0102040810204080;
+
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && mmx_supported */ )
+ {
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+ m = 0x80;
+ unmask = ~mask;
+ len = png_ptr->width &~7; //reduce to multiple of 8
+ diff = png_ptr->width & 7; //amount lost
+
+ _asm
+ {
+ movd mm7, unmask //load bit pattern
+ psubb mm6,mm6 //zero mm6
+ punpcklbw mm7,mm7
+ punpcklwd mm7,mm7
+ punpckldq mm7,mm7 //fill register with 8 masks
+
+ movq mm0,mask0
+
+ pand mm0,mm7 //nonzero if keep byte
+ pcmpeqb mm0,mm6 //zeros->1s, v versa
+
+ mov ecx,len //load length of line (pixels)
+ mov esi,srcptr //load source
+ mov ebx,dstptr //load dest
+ cmp ecx,0 //lcr
+ je mainloop8end
+
+mainloop8:
+ movq mm4,[esi]
+ pand mm4,mm0
+ movq mm6,mm0
+ pandn mm6,[ebx]
+ por mm4,mm6
+ movq [ebx],mm4
+
+ add esi,8 //inc by 8 bytes processed
+ add ebx,8
+ sub ecx,8 //dec by 8 pixels processed
+
+ ja mainloop8
+mainloop8end:
+
+ mov ecx,diff
+ cmp ecx,0
+ jz end8
+
+ mov edx,mask
+ sal edx,24 //make low byte the high byte
+
+secondloop8:
+ sal edx,1 //move high bit to CF
+ jnc skip8 //if CF = 0
+ mov al,[esi]
+ mov [ebx],al
+skip8:
+ inc esi
+ inc ebx
+
+ dec ecx
+ jnz secondloop8
+end8:
+ emms
+ }
+ }
+ else /* mmx not supported - use modified C routine */
+ {
+ register unsigned int incr1, initial_val, final_val;
+ png_size_t pixel_bytes;
+ png_uint_32 i;
+ register int disp = png_pass_inc[png_ptr->pass];
+ int offset_table[7] = {0, 4, 0, 2, 0, 1, 0};
+
+ pixel_bytes = (png_ptr->row_info.pixel_depth >> 3);
+ srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]*
+ pixel_bytes;
+ dstptr = row + offset_table[png_ptr->pass]*pixel_bytes;
+ initial_val = offset_table[png_ptr->pass]*pixel_bytes;
+ final_val = png_ptr->width*pixel_bytes;
+ incr1 = (disp)*pixel_bytes;
+ for (i = initial_val; i < final_val; i += incr1)
+ {
+ png_memcpy(dstptr, srcptr, pixel_bytes);
+ srcptr += incr1;
+ dstptr += incr1;
+ }
+ } /* end of else */
+
+ break;
+ } // end 8 bpp
+
+ case 16:
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+ png_uint_32 len;
+ int unmask, diff;
+ __int64 mask1=0x0101020204040808,
+ mask0=0x1010202040408080;
+
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && mmx_supported */ )
+ {
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+
+ unmask = ~mask;
+ len = (png_ptr->width)&~7;
+ diff = (png_ptr->width)&7;
+ _asm
+ {
+ movd mm7, unmask //load bit pattern
+ psubb mm6,mm6 //zero mm6
+ punpcklbw mm7,mm7
+ punpcklwd mm7,mm7
+ punpckldq mm7,mm7 //fill register with 8 masks
+
+ movq mm0,mask0
+ movq mm1,mask1
+
+ pand mm0,mm7
+ pand mm1,mm7
+
+ pcmpeqb mm0,mm6
+ pcmpeqb mm1,mm6
+
+ mov ecx,len //load length of line
+ mov esi,srcptr //load source
+ mov ebx,dstptr //load dest
+ cmp ecx,0 //lcr
+ jz mainloop16end
+
+mainloop16:
+ movq mm4,[esi]
+ pand mm4,mm0
+ movq mm6,mm0
+ movq mm7,[ebx]
+ pandn mm6,mm7
+ por mm4,mm6
+ movq [ebx],mm4
+
+ movq mm5,[esi+8]
+ pand mm5,mm1
+ movq mm7,mm1
+ movq mm6,[ebx+8]
+ pandn mm7,mm6
+ por mm5,mm7
+ movq [ebx+8],mm5
+
+ add esi,16 //inc by 16 bytes processed
+ add ebx,16
+ sub ecx,8 //dec by 8 pixels processed
+
+ ja mainloop16
+
+mainloop16end:
+ mov ecx,diff
+ cmp ecx,0
+ jz end16
+
+ mov edx,mask
+ sal edx,24 //make low byte the high byte
+secondloop16:
+ sal edx,1 //move high bit to CF
+ jnc skip16 //if CF = 0
+ mov ax,[esi]
+ mov [ebx],ax
+skip16:
+ add esi,2
+ add ebx,2
+
+ dec ecx
+ jnz secondloop16
+end16:
+ emms
+ }
+ }
+ else /* mmx not supported - use modified C routine */
+ {
+ register unsigned int incr1, initial_val, final_val;
+ png_size_t pixel_bytes;
+ png_uint_32 i;
+ register int disp = png_pass_inc[png_ptr->pass];
+ int offset_table[7] = {0, 4, 0, 2, 0, 1, 0};
+
+ pixel_bytes = (png_ptr->row_info.pixel_depth >> 3);
+ srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]*
+ pixel_bytes;
+ dstptr = row + offset_table[png_ptr->pass]*pixel_bytes;
+ initial_val = offset_table[png_ptr->pass]*pixel_bytes;
+ final_val = png_ptr->width*pixel_bytes;
+ incr1 = (disp)*pixel_bytes;
+ for (i = initial_val; i < final_val; i += incr1)
+ {
+ png_memcpy(dstptr, srcptr, pixel_bytes);
+ srcptr += incr1;
+ dstptr += incr1;
+ }
+ } /* end of else */
+
+ break;
+ } // end 16 bpp
+
+ case 24:
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+ png_uint_32 len;
+ int unmask, diff;
+
+ __int64 mask2=0x0101010202020404, //24bpp
+ mask1=0x0408080810101020,
+ mask0=0x2020404040808080;
+
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+
+ unmask = ~mask;
+ len = (png_ptr->width)&~7;
+ diff = (png_ptr->width)&7;
+
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && mmx_supported */ )
+ {
+ _asm
+ {
+ movd mm7, unmask //load bit pattern
+ psubb mm6,mm6 //zero mm6
+ punpcklbw mm7,mm7
+ punpcklwd mm7,mm7
+ punpckldq mm7,mm7 //fill register with 8 masks
+
+ movq mm0,mask0
+ movq mm1,mask1
+ movq mm2,mask2
+
+ pand mm0,mm7
+ pand mm1,mm7
+ pand mm2,mm7
+
+ pcmpeqb mm0,mm6
+ pcmpeqb mm1,mm6
+ pcmpeqb mm2,mm6
+
+ mov ecx,len //load length of line
+ mov esi,srcptr //load source
+ mov ebx,dstptr //load dest
+ cmp ecx,0
+ jz mainloop24end
+
+mainloop24:
+ movq mm4,[esi]
+ pand mm4,mm0
+ movq mm6,mm0
+ movq mm7,[ebx]
+ pandn mm6,mm7
+ por mm4,mm6
+ movq [ebx],mm4
+
+
+ movq mm5,[esi+8]
+ pand mm5,mm1
+ movq mm7,mm1
+ movq mm6,[ebx+8]
+ pandn mm7,mm6
+ por mm5,mm7
+ movq [ebx+8],mm5
+
+ movq mm6,[esi+16]
+ pand mm6,mm2
+ movq mm4,mm2
+ movq mm7,[ebx+16]
+ pandn mm4,mm7
+ por mm6,mm4
+ movq [ebx+16],mm6
+
+ add esi,24 //inc by 24 bytes processed
+ add ebx,24
+ sub ecx,8 //dec by 8 pixels processed
+
+ ja mainloop24
+
+mainloop24end:
+ mov ecx,diff
+ cmp ecx,0
+ jz end24
+
+ mov edx,mask
+ sal edx,24 //make low byte the high byte
+secondloop24:
+ sal edx,1 //move high bit to CF
+ jnc skip24 //if CF = 0
+ mov ax,[esi]
+ mov [ebx],ax
+ xor eax,eax
+ mov al,[esi+2]
+ mov [ebx+2],al
+skip24:
+ add esi,3
+ add ebx,3
+
+ dec ecx
+ jnz secondloop24
+
+end24:
+ emms
+ }
+ }
+ else /* mmx not supported - use modified C routine */
+ {
+ register unsigned int incr1, initial_val, final_val;
+ png_size_t pixel_bytes;
+ png_uint_32 i;
+ register int disp = png_pass_inc[png_ptr->pass];
+ int offset_table[7] = {0, 4, 0, 2, 0, 1, 0};
+
+ pixel_bytes = (png_ptr->row_info.pixel_depth >> 3);
+ srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]*
+ pixel_bytes;
+ dstptr = row + offset_table[png_ptr->pass]*pixel_bytes;
+ initial_val = offset_table[png_ptr->pass]*pixel_bytes;
+ final_val = png_ptr->width*pixel_bytes;
+ incr1 = (disp)*pixel_bytes;
+ for (i = initial_val; i < final_val; i += incr1)
+ {
+ png_memcpy(dstptr, srcptr, pixel_bytes);
+ srcptr += incr1;
+ dstptr += incr1;
+ }
+ } /* end of else */
+
+ break;
+ } // end 24 bpp
+
+ case 32:
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+ png_uint_32 len;
+ int unmask, diff;
+
+ __int64 mask3=0x0101010102020202, //32bpp
+ mask2=0x0404040408080808,
+ mask1=0x1010101020202020,
+ mask0=0x4040404080808080;
+
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+
+ unmask = ~mask;
+ len = (png_ptr->width)&~7;
+ diff = (png_ptr->width)&7;
+
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && mmx_supported */ )
+ {
+ _asm
+ {
+ movd mm7, unmask //load bit pattern
+ psubb mm6,mm6 //zero mm6
+ punpcklbw mm7,mm7
+ punpcklwd mm7,mm7
+ punpckldq mm7,mm7 //fill register with 8 masks
+
+ movq mm0,mask0
+ movq mm1,mask1
+ movq mm2,mask2
+ movq mm3,mask3
+
+ pand mm0,mm7
+ pand mm1,mm7
+ pand mm2,mm7
+ pand mm3,mm7
+
+ pcmpeqb mm0,mm6
+ pcmpeqb mm1,mm6
+ pcmpeqb mm2,mm6
+ pcmpeqb mm3,mm6
+
+ mov ecx,len //load length of line
+ mov esi,srcptr //load source
+ mov ebx,dstptr //load dest
+
+ cmp ecx,0 //lcr
+ jz mainloop32end
+
+mainloop32:
+ movq mm4,[esi]
+ pand mm4,mm0
+ movq mm6,mm0
+ movq mm7,[ebx]
+ pandn mm6,mm7
+ por mm4,mm6
+ movq [ebx],mm4
+
+ movq mm5,[esi+8]
+ pand mm5,mm1
+ movq mm7,mm1
+ movq mm6,[ebx+8]
+ pandn mm7,mm6
+ por mm5,mm7
+ movq [ebx+8],mm5
+
+ movq mm6,[esi+16]
+ pand mm6,mm2
+ movq mm4,mm2
+ movq mm7,[ebx+16]
+ pandn mm4,mm7
+ por mm6,mm4
+ movq [ebx+16],mm6
+
+ movq mm7,[esi+24]
+ pand mm7,mm3
+ movq mm5,mm3
+ movq mm4,[ebx+24]
+ pandn mm5,mm4
+ por mm7,mm5
+ movq [ebx+24],mm7
+
+ add esi,32 //inc by 32 bytes processed
+ add ebx,32
+ sub ecx,8 //dec by 8 pixels processed
+
+ ja mainloop32
+
+mainloop32end:
+ mov ecx,diff
+ cmp ecx,0
+ jz end32
+
+ mov edx,mask
+ sal edx,24 //make low byte the high byte
+secondloop32:
+ sal edx,1 //move high bit to CF
+ jnc skip32 //if CF = 0
+ mov eax,[esi]
+ mov [ebx],eax
+skip32:
+ add esi,4
+ add ebx,4
+
+ dec ecx
+ jnz secondloop32
+
+end32:
+ emms
+ }
+ }
+ else /* mmx _not supported - Use modified C routine */
+ {
+ register unsigned int incr1, initial_val, final_val;
+ png_size_t pixel_bytes;
+ png_uint_32 i;
+ register int disp = png_pass_inc[png_ptr->pass];
+ int offset_table[7] = {0, 4, 0, 2, 0, 1, 0};
+
+ pixel_bytes = (png_ptr->row_info.pixel_depth >> 3);
+ srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]*
+ pixel_bytes;
+ dstptr = row + offset_table[png_ptr->pass]*pixel_bytes;
+ initial_val = offset_table[png_ptr->pass]*pixel_bytes;
+ final_val = png_ptr->width*pixel_bytes;
+ incr1 = (disp)*pixel_bytes;
+ for (i = initial_val; i < final_val; i += incr1)
+ {
+ png_memcpy(dstptr, srcptr, pixel_bytes);
+ srcptr += incr1;
+ dstptr += incr1;
+ }
+ } /* end of else */
+
+ break;
+ } // end 32 bpp
+
+ case 48:
+ {
+ png_bytep srcptr;
+ png_bytep dstptr;
+ png_uint_32 len;
+ int unmask, diff;
+
+ __int64 mask5=0x0101010101010202,
+ mask4=0x0202020204040404,
+ mask3=0x0404080808080808,
+ mask2=0x1010101010102020,
+ mask1=0x2020202040404040,
+ mask0=0x4040808080808080;
+
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_COMBINE_ROW)
+ /* && mmx_supported */ )
+ {
+ srcptr = png_ptr->row_buf + 1;
+ dstptr = row;
+
+ unmask = ~mask;
+ len = (png_ptr->width)&~7;
+ diff = (png_ptr->width)&7;
+ _asm
+ {
+ movd mm7, unmask //load bit pattern
+ psubb mm6,mm6 //zero mm6
+ punpcklbw mm7,mm7
+ punpcklwd mm7,mm7
+ punpckldq mm7,mm7 //fill register with 8 masks
+
+ movq mm0,mask0
+ movq mm1,mask1
+ movq mm2,mask2
+ movq mm3,mask3
+ movq mm4,mask4
+ movq mm5,mask5
+
+ pand mm0,mm7
+ pand mm1,mm7
+ pand mm2,mm7
+ pand mm3,mm7
+ pand mm4,mm7
+ pand mm5,mm7
+
+ pcmpeqb mm0,mm6
+ pcmpeqb mm1,mm6
+ pcmpeqb mm2,mm6
+ pcmpeqb mm3,mm6
+ pcmpeqb mm4,mm6
+ pcmpeqb mm5,mm6
+
+ mov ecx,len //load length of line
+ mov esi,srcptr //load source
+ mov ebx,dstptr //load dest
+
+ cmp ecx,0
+ jz mainloop48end
+
+mainloop48:
+ movq mm7,[esi]
+ pand mm7,mm0
+ movq mm6,mm0
+ pandn mm6,[ebx]
+ por mm7,mm6
+ movq [ebx],mm7
+
+ movq mm6,[esi+8]
+ pand mm6,mm1
+ movq mm7,mm1
+ pandn mm7,[ebx+8]
+ por mm6,mm7
+ movq [ebx+8],mm6
+
+ movq mm6,[esi+16]
+ pand mm6,mm2
+ movq mm7,mm2
+ pandn mm7,[ebx+16]
+ por mm6,mm7
+ movq [ebx+16],mm6
+
+ movq mm7,[esi+24]
+ pand mm7,mm3
+ movq mm6,mm3
+ pandn mm6,[ebx+24]
+ por mm7,mm6
+ movq [ebx+24],mm7
+
+ movq mm6,[esi+32]
+ pand mm6,mm4
+ movq mm7,mm4
+ pandn mm7,[ebx+32]
+ por mm6,mm7
+ movq [ebx+32],mm6
+
+ movq mm7,[esi+40]
+ pand mm7,mm5
+ movq mm6,mm5
+ pandn mm6,[ebx+40]
+ por mm7,mm6
+ movq [ebx+40],mm7
+
+ add esi,48 //inc by 32 bytes processed
+ add ebx,48
+ sub ecx,8 //dec by 8 pixels processed
+
+ ja mainloop48
+mainloop48end:
+
+ mov ecx,diff
+ cmp ecx,0
+ jz end48
+
+ mov edx,mask
+ sal edx,24 //make low byte the high byte
+
+secondloop48:
+ sal edx,1 //move high bit to CF
+ jnc skip48 //if CF = 0
+ mov eax,[esi]
+ mov [ebx],eax
+skip48:
+ add esi,4
+ add ebx,4
+
+ dec ecx
+ jnz secondloop48
+
+end48:
+ emms
+ }
+ }
+ else /* mmx _not supported - Use modified C routine */
+ {
+ register unsigned int incr1, initial_val, final_val;
+ png_size_t pixel_bytes;
+ png_uint_32 i;
+ register int disp = png_pass_inc[png_ptr->pass];
+ int offset_table[7] = {0, 4, 0, 2, 0, 1, 0};
+
+ pixel_bytes = (png_ptr->row_info.pixel_depth >> 3);
+ srcptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]*
+ pixel_bytes;
+ dstptr = row + offset_table[png_ptr->pass]*pixel_bytes;
+ initial_val = offset_table[png_ptr->pass]*pixel_bytes;
+ final_val = png_ptr->width*pixel_bytes;
+ incr1 = (disp)*pixel_bytes;
+ for (i = initial_val; i < final_val; i += incr1)
+ {
+ png_memcpy(dstptr, srcptr, pixel_bytes);
+ srcptr += incr1;
+ dstptr += incr1;
+ }
+ } /* end of else */
+
+ break;
+ } // end 48 bpp
+
+ default:
+ {
+ png_bytep sptr;
+ png_bytep dp;
+ png_size_t pixel_bytes;
+ int offset_table[7] = {0, 4, 0, 2, 0, 1, 0};
+ unsigned int i;
+ register int disp = png_pass_inc[png_ptr->pass]; // get the offset
+ register unsigned int incr1, initial_val, final_val;
+
+ pixel_bytes = (png_ptr->row_info.pixel_depth >> 3);
+ sptr = png_ptr->row_buf + 1 + offset_table[png_ptr->pass]*
+ pixel_bytes;
+ dp = row + offset_table[png_ptr->pass]*pixel_bytes;
+ initial_val = offset_table[png_ptr->pass]*pixel_bytes;
+ final_val = png_ptr->width*pixel_bytes;
+ incr1 = (disp)*pixel_bytes;
+ for (i = initial_val; i < final_val; i += incr1)
+ {
+ png_memcpy(dp, sptr, pixel_bytes);
+ sptr += incr1;
+ dp += incr1;
+ }
+ break;
+ }
+ } /* end switch (png_ptr->row_info.pixel_depth) */
+ } /* end if (non-trivial mask) */
+
+} /* end png_combine_row() */
+
+
+#if defined(PNG_READ_INTERLACING_SUPPORTED)
+
+void /* PRIVATE */
+png_do_read_interlace(png_structp png_ptr)
+{
+ png_row_infop row_info = &(png_ptr->row_info);
+ png_bytep row = png_ptr->row_buf + 1;
+ int pass = png_ptr->pass;
+ png_uint_32 transformations = png_ptr->transformations;
+#ifdef PNG_USE_LOCAL_ARRAYS
+ const int png_pass_inc[7] = {8, 8, 4, 4, 2, 2, 1};
+#endif
+
+ png_debug(1,"in png_do_read_interlace\n");
+
+ if (mmx_supported == 2) {
+ /* this should have happened in png_init_mmx_flags() already */
+ png_warning(png_ptr, "asm_flags may not have been initialized");
+ png_mmx_support();
+ }
+
+ if (row != NULL && row_info != NULL)
+ {
+ png_uint_32 final_width;
+
+ final_width = row_info->width * png_pass_inc[pass];
+
+ switch (row_info->pixel_depth)
+ {
+ case 1:
+ {
+ png_bytep sp, dp;
+ int sshift, dshift;
+ int s_start, s_end, s_inc;
+ png_byte v;
+ png_uint_32 i;
+ int j;
+
+ sp = row + (png_size_t)((row_info->width - 1) >> 3);
+ dp = row + (png_size_t)((final_width - 1) >> 3);
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (transformations & PNG_PACKSWAP)
+ {
+ sshift = (int)((row_info->width + 7) & 7);
+ dshift = (int)((final_width + 7) & 7);
+ s_start = 7;
+ s_end = 0;
+ s_inc = -1;
+ }
+ else
+#endif
+ {
+ sshift = 7 - (int)((row_info->width + 7) & 7);
+ dshift = 7 - (int)((final_width + 7) & 7);
+ s_start = 0;
+ s_end = 7;
+ s_inc = 1;
+ }
+
+ for (i = row_info->width; i; i--)
+ {
+ v = (png_byte)((*sp >> sshift) & 0x1);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp &= (png_byte)((0x7f7f >> (7 - dshift)) & 0xff);
+ *dp |= (png_byte)(v << dshift);
+ if (dshift == s_end)
+ {
+ dshift = s_start;
+ dp--;
+ }
+ else
+ dshift += s_inc;
+ }
+ if (sshift == s_end)
+ {
+ sshift = s_start;
+ sp--;
+ }
+ else
+ sshift += s_inc;
+ }
+ break;
+ }
+
+ case 2:
+ {
+ png_bytep sp, dp;
+ int sshift, dshift;
+ int s_start, s_end, s_inc;
+ png_uint_32 i;
+
+ sp = row + (png_size_t)((row_info->width - 1) >> 2);
+ dp = row + (png_size_t)((final_width - 1) >> 2);
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (transformations & PNG_PACKSWAP)
+ {
+ sshift = (png_size_t)(((row_info->width + 3) & 3) << 1);
+ dshift = (png_size_t)(((final_width + 3) & 3) << 1);
+ s_start = 6;
+ s_end = 0;
+ s_inc = -2;
+ }
+ else
+#endif
+ {
+ sshift = (png_size_t)((3 - ((row_info->width + 3) & 3)) << 1);
+ dshift = (png_size_t)((3 - ((final_width + 3) & 3)) << 1);
+ s_start = 0;
+ s_end = 6;
+ s_inc = 2;
+ }
+
+ for (i = row_info->width; i; i--)
+ {
+ png_byte v;
+ int j;
+
+ v = (png_byte)((*sp >> sshift) & 0x3);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp &= (png_byte)((0x3f3f >> (6 - dshift)) & 0xff);
+ *dp |= (png_byte)(v << dshift);
+ if (dshift == s_end)
+ {
+ dshift = s_start;
+ dp--;
+ }
+ else
+ dshift += s_inc;
+ }
+ if (sshift == s_end)
+ {
+ sshift = s_start;
+ sp--;
+ }
+ else
+ sshift += s_inc;
+ }
+ break;
+ }
+
+ case 4:
+ {
+ png_bytep sp, dp;
+ int sshift, dshift;
+ int s_start, s_end, s_inc;
+ png_uint_32 i;
+
+ sp = row + (png_size_t)((row_info->width - 1) >> 1);
+ dp = row + (png_size_t)((final_width - 1) >> 1);
+#if defined(PNG_READ_PACKSWAP_SUPPORTED)
+ if (transformations & PNG_PACKSWAP)
+ {
+ sshift = (png_size_t)(((row_info->width + 1) & 1) << 2);
+ dshift = (png_size_t)(((final_width + 1) & 1) << 2);
+ s_start = 4;
+ s_end = 0;
+ s_inc = -4;
+ }
+ else
+#endif
+ {
+ sshift = (png_size_t)((1 - ((row_info->width + 1) & 1)) << 2);
+ dshift = (png_size_t)((1 - ((final_width + 1) & 1)) << 2);
+ s_start = 0;
+ s_end = 4;
+ s_inc = 4;
+ }
+
+ for (i = row_info->width; i; i--)
+ {
+ png_byte v;
+ int j;
+
+ v = (png_byte)((*sp >> sshift) & 0xf);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp &= (png_byte)((0xf0f >> (4 - dshift)) & 0xff);
+ *dp |= (png_byte)(v << dshift);
+ if (dshift == s_end)
+ {
+ dshift = s_start;
+ dp--;
+ }
+ else
+ dshift += s_inc;
+ }
+ if (sshift == s_end)
+ {
+ sshift = s_start;
+ sp--;
+ }
+ else
+ sshift += s_inc;
+ }
+ break;
+ }
+
+ default: // This is the place where the routine is modified
+ {
+ __int64 const4 = 0x0000000000FFFFFF;
+ // __int64 const5 = 0x000000FFFFFF0000; // unused...
+ __int64 const6 = 0x00000000000000FF;
+ png_bytep sptr, dp;
+ png_uint_32 i;
+ png_size_t pixel_bytes;
+ int width = row_info->width;
+
+ pixel_bytes = (row_info->pixel_depth >> 3);
+
+ sptr = row + (width - 1) * pixel_bytes;
+ dp = row + (final_width - 1) * pixel_bytes;
+ // New code by Nirav Chhatrapati - Intel Corporation
+ // sign fix by GRR
+ // NOTE: there is NO MMX code for 48-bit and 64-bit images
+
+ // use MMX routine if machine supports it
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_INTERLACE)
+ /* && mmx_supported */ )
+ {
+ if (pixel_bytes == 3)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width
+ sub edi, 21 // (png_pass_inc[pass] - 1)*pixel_bytes
+loop_pass0:
+ movd mm0, [esi] ; X X X X X v2 v1 v0
+ pand mm0, const4 ; 0 0 0 0 0 v2 v1 v0
+ movq mm1, mm0 ; 0 0 0 0 0 v2 v1 v0
+ psllq mm0, 16 ; 0 0 0 v2 v1 v0 0 0
+ movq mm2, mm0 ; 0 0 0 v2 v1 v0 0 0
+ psllq mm0, 24 ; v2 v1 v0 0 0 0 0 0
+ psrlq mm1, 8 ; 0 0 0 0 0 0 v2 v1
+ por mm0, mm2 ; v2 v1 v0 v2 v1 v0 0 0
+ por mm0, mm1 ; v2 v1 v0 v2 v1 v0 v2 v1
+ movq mm3, mm0 ; v2 v1 v0 v2 v1 v0 v2 v1
+ psllq mm0, 16 ; v0 v2 v1 v0 v2 v1 0 0
+ movq mm4, mm3 ; v2 v1 v0 v2 v1 v0 v2 v1
+ punpckhdq mm3, mm0 ; v0 v2 v1 v0 v2 v1 v0 v2
+ movq [edi+16] , mm4
+ psrlq mm0, 32 ; 0 0 0 0 v0 v2 v1 v0
+ movq [edi+8] , mm3
+ punpckldq mm0, mm4 ; v1 v0 v2 v1 v0 v2 v1 v0
+ sub esi, 3
+ movq [edi], mm0
+ sub edi, 24
+ //sub esi, 3
+ dec ecx
+ jnz loop_pass0
+ EMMS
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width
+ sub edi, 9 // (png_pass_inc[pass] - 1)*pixel_bytes
+loop_pass2:
+ movd mm0, [esi] ; X X X X X v2 v1 v0
+ pand mm0, const4 ; 0 0 0 0 0 v2 v1 v0
+ movq mm1, mm0 ; 0 0 0 0 0 v2 v1 v0
+ psllq mm0, 16 ; 0 0 0 v2 v1 v0 0 0
+ movq mm2, mm0 ; 0 0 0 v2 v1 v0 0 0
+ psllq mm0, 24 ; v2 v1 v0 0 0 0 0 0
+ psrlq mm1, 8 ; 0 0 0 0 0 0 v2 v1
+ por mm0, mm2 ; v2 v1 v0 v2 v1 v0 0 0
+ por mm0, mm1 ; v2 v1 v0 v2 v1 v0 v2 v1
+ movq [edi+4], mm0 ; move to memory
+ psrlq mm0, 16 ; 0 0 v2 v1 v0 v2 v1 v0
+ movd [edi], mm0 ; move to memory
+ sub esi, 3
+ sub edi, 12
+ dec ecx
+ jnz loop_pass2
+ EMMS
+ }
+ }
+ else if (width) /* && ((pass == 4) || (pass == 5)) */
+ {
+ int width_mmx = ((width >> 1) << 1) - 8;
+ if (width_mmx < 0)
+ width_mmx = 0;
+ width -= width_mmx; // 8 or 9 pix, 24 or 27 bytes
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 3
+ sub edi, 9
+loop_pass4:
+ movq mm0, [esi] ; X X v2 v1 v0 v5 v4 v3
+ movq mm7, mm0 ; X X v2 v1 v0 v5 v4 v3
+ movq mm6, mm0 ; X X v2 v1 v0 v5 v4 v3
+ psllq mm0, 24 ; v1 v0 v5 v4 v3 0 0 0
+ pand mm7, const4 ; 0 0 0 0 0 v5 v4 v3
+ psrlq mm6, 24 ; 0 0 0 X X v2 v1 v0
+ por mm0, mm7 ; v1 v0 v5 v4 v3 v5 v4 v3
+ movq mm5, mm6 ; 0 0 0 X X v2 v1 v0
+ psllq mm6, 8 ; 0 0 X X v2 v1 v0 0
+ movq [edi], mm0 ; move quad to memory
+ psrlq mm5, 16 ; 0 0 0 0 0 X X v2
+ pand mm5, const6 ; 0 0 0 0 0 0 0 v2
+ por mm6, mm5 ; 0 0 X X v2 v1 v0 v2
+ movd [edi+8], mm6 ; move double to memory
+ sub esi, 6
+ sub edi, 12
+ sub ecx, 2
+ jnz loop_pass4
+ EMMS
+ }
+ }
+
+ sptr -= width_mmx*3;
+ dp -= width_mmx*6;
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+
+ png_memcpy(v, sptr, 3);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 3);
+ dp -= 3;
+ }
+ sptr -= 3;
+ }
+ }
+ } /* end of pixel_bytes == 3 */
+
+ else if (pixel_bytes == 1)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int width_mmx = ((width >> 2) << 2);
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub edi, 31
+ sub esi, 3
+loop1_pass0:
+ movd mm0, [esi] ; X X X X v0 v1 v2 v3
+ movq mm1, mm0 ; X X X X v0 v1 v2 v3
+ punpcklbw mm0, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3
+ movq mm2, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3
+ punpcklwd mm0, mm0 ; v2 v2 v2 v2 v3 v3 v3 v3
+ movq mm3, mm0 ; v2 v2 v2 v2 v3 v3 v3 v3
+ punpckldq mm0, mm0 ; v3 v3 v3 v3 v3 v3 v3 v3
+ punpckhdq mm3, mm3 ; v2 v2 v2 v2 v2 v2 v2 v2
+ movq [edi], mm0 ; move to memory v3
+ punpckhwd mm2, mm2 ; v0 v0 v0 v0 v1 v1 v1 v1
+ movq [edi+8], mm3 ; move to memory v2
+ movq mm4, mm2 ; v0 v0 v0 v0 v1 v1 v1 v1
+ punpckldq mm2, mm2 ; v1 v1 v1 v1 v1 v1 v1 v1
+ punpckhdq mm4, mm4 ; v0 v0 v0 v0 v0 v0 v0 v0
+ movq [edi+16], mm2 ; move to memory v1
+ movq [edi+24], mm4 ; move to memory v0
+ sub esi, 4
+ sub edi, 32
+ sub ecx, 4
+ jnz loop1_pass0
+ EMMS
+ }
+ }
+
+ sptr -= width_mmx;
+ dp -= width_mmx*8;
+ for (i = width; i; i--)
+ {
+ int j;
+
+ /* I simplified this part in version 1.0.4e
+ * here and in several other instances where
+ * pixel_bytes == 1 -- GR-P
+ *
+ * Original code:
+ *
+ * png_byte v[8];
+ * png_memcpy(v, sptr, pixel_bytes);
+ * for (j = 0; j < png_pass_inc[pass]; j++)
+ * {
+ * png_memcpy(dp, v, pixel_bytes);
+ * dp -= pixel_bytes;
+ * }
+ * sptr -= pixel_bytes;
+ *
+ * Replacement code is in the next three lines:
+ */
+
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ *dp-- = *sptr;
+ sptr--;
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int width_mmx = ((width >> 2) << 2);
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub edi, 15
+ sub esi, 3
+loop1_pass2:
+ movd mm0, [esi] ; X X X X v0 v1 v2 v3
+ punpcklbw mm0, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3
+ movq mm1, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3
+ punpcklwd mm0, mm0 ; v2 v2 v2 v2 v3 v3 v3 v3
+ punpckhwd mm1, mm1 ; v0 v0 v0 v0 v1 v1 v1 v1
+ movq [edi], mm0 ; move to memory v2 and v3
+ sub esi, 4
+ movq [edi+8], mm1 ; move to memory v1 and v0
+ sub edi, 16
+ sub ecx, 4
+ jnz loop1_pass2
+ EMMS
+ }
+ }
+
+ sptr -= width_mmx;
+ dp -= width_mmx*4;
+ for (i = width; i; i--)
+ {
+ int j;
+
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp-- = *sptr;
+ }
+ sptr --;
+ }
+ }
+ else if (width) /* && ((pass == 4) || (pass == 5))) */
+ {
+ int width_mmx = ((width >> 3) << 3);
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub edi, 15
+ sub esi, 7
+loop1_pass4:
+ movq mm0, [esi] ; v0 v1 v2 v3 v4 v5 v6 v7
+ movq mm1, mm0 ; v0 v1 v2 v3 v4 v5 v6 v7
+ punpcklbw mm0, mm0 ; v4 v4 v5 v5 v6 v6 v7 v7
+ //movq mm1, mm0 ; v0 v0 v1 v1 v2 v2 v3 v3
+ punpckhbw mm1, mm1 ;v0 v0 v1 v1 v2 v2 v3 v3
+ movq [edi+8], mm1 ; move to memory v0 v1 v2 and v3
+ sub esi, 8
+ movq [edi], mm0 ; move to memory v4 v5 v6 and v7
+ //sub esi, 4
+ sub edi, 16
+ sub ecx, 8
+ jnz loop1_pass4
+ EMMS
+ }
+ }
+
+ sptr -= width_mmx;
+ dp -= width_mmx*2;
+ for (i = width; i; i--)
+ {
+ int j;
+
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ *dp-- = *sptr;
+ }
+ sptr --;
+ }
+ }
+ } /* end of pixel_bytes == 1 */
+
+ else if (pixel_bytes == 2)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1);
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 2
+ sub edi, 30
+loop2_pass0:
+ movd mm0, [esi] ; X X X X v1 v0 v3 v2
+ punpcklwd mm0, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2
+ movq mm1, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2
+ punpckldq mm0, mm0 ; v3 v2 v3 v2 v3 v2 v3 v2
+ punpckhdq mm1, mm1 ; v1 v0 v1 v0 v1 v0 v1 v0
+ movq [edi], mm0
+ movq [edi + 8], mm0
+ movq [edi + 16], mm1
+ movq [edi + 24], mm1
+ sub esi, 4
+ sub edi, 32
+ sub ecx, 2
+ jnz loop2_pass0
+ EMMS
+ }
+ }
+
+ sptr -= (width_mmx*2 - 2); // sign fixed
+ dp -= (width_mmx*16 - 2); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 2;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 2;
+ png_memcpy(dp, v, 2);
+ }
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 2
+ sub edi, 14
+loop2_pass2:
+ movd mm0, [esi] ; X X X X v1 v0 v3 v2
+ punpcklwd mm0, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2
+ movq mm1, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2
+ punpckldq mm0, mm0 ; v3 v2 v3 v2 v3 v2 v3 v2
+ punpckhdq mm1, mm1 ; v1 v0 v1 v0 v1 v0 v1 v0
+ movq [edi], mm0
+ sub esi, 4
+ movq [edi + 8], mm1
+ //sub esi, 4
+ sub edi, 16
+ sub ecx, 2
+ jnz loop2_pass2
+ EMMS
+ }
+ }
+
+ sptr -= (width_mmx*2 - 2); // sign fixed
+ dp -= (width_mmx*8 - 2); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 2;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 2;
+ png_memcpy(dp, v, 2);
+ }
+ }
+ }
+ else if (width) // pass == 4 or 5
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 2
+ sub edi, 6
+loop2_pass4:
+ movd mm0, [esi] ; X X X X v1 v0 v3 v2
+ punpcklwd mm0, mm0 ; v1 v0 v1 v0 v3 v2 v3 v2
+ sub esi, 4
+ movq [edi], mm0
+ sub edi, 8
+ sub ecx, 2
+ jnz loop2_pass4
+ EMMS
+ }
+ }
+
+ sptr -= (width_mmx*2 - 2); // sign fixed
+ dp -= (width_mmx*4 - 2); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 2;
+ png_memcpy(v, sptr, 2);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 2;
+ png_memcpy(dp, v, 2);
+ }
+ }
+ }
+ } /* end of pixel_bytes == 2 */
+
+ else if (pixel_bytes == 4)
+ {
+ if (((pass == 0) || (pass == 1)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 4
+ sub edi, 60
+loop4_pass0:
+ movq mm0, [esi] ; v3 v2 v1 v0 v7 v6 v5 v4
+ movq mm1, mm0 ; v3 v2 v1 v0 v7 v6 v5 v4
+ punpckldq mm0, mm0 ; v7 v6 v5 v4 v7 v6 v5 v4
+ punpckhdq mm1, mm1 ; v3 v2 v1 v0 v3 v2 v1 v0
+ movq [edi], mm0
+ movq [edi + 8], mm0
+ movq [edi + 16], mm0
+ movq [edi + 24], mm0
+ movq [edi+32], mm1
+ movq [edi + 40], mm1
+ movq [edi+ 48], mm1
+ sub esi, 8
+ movq [edi + 56], mm1
+ sub edi, 64
+ sub ecx, 2
+ jnz loop4_pass0
+ EMMS
+ }
+ }
+
+ sptr -= (width_mmx*4 - 4); // sign fixed
+ dp -= (width_mmx*32 - 4); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 4;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 4;
+ png_memcpy(dp, v, 4);
+ }
+ }
+ }
+ else if (((pass == 2) || (pass == 3)) && width)
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 4
+ sub edi, 28
+loop4_pass2:
+ movq mm0, [esi] ; v3 v2 v1 v0 v7 v6 v5 v4
+ movq mm1, mm0 ; v3 v2 v1 v0 v7 v6 v5 v4
+ punpckldq mm0, mm0 ; v7 v6 v5 v4 v7 v6 v5 v4
+ punpckhdq mm1, mm1 ; v3 v2 v1 v0 v3 v2 v1 v0
+ movq [edi], mm0
+ movq [edi + 8], mm0
+ movq [edi+16], mm1
+ movq [edi + 24], mm1
+ sub esi, 8
+ sub edi, 32
+ sub ecx, 2
+ jnz loop4_pass2
+ EMMS
+ }
+ }
+
+ sptr -= (width_mmx*4 - 4); // sign fixed
+ dp -= (width_mmx*16 - 4); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 4;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 4;
+ png_memcpy(dp, v, 4);
+ }
+ }
+ }
+ else if (width) // pass == 4 or 5
+ {
+ int width_mmx = ((width >> 1) << 1) ;
+ width -= width_mmx;
+ if (width_mmx)
+ {
+ _asm
+ {
+ mov esi, sptr
+ mov edi, dp
+ mov ecx, width_mmx
+ sub esi, 4
+ sub edi, 12
+loop4_pass4:
+ movq mm0, [esi] ; v3 v2 v1 v0 v7 v6 v5 v4
+ movq mm1, mm0 ; v3 v2 v1 v0 v7 v6 v5 v4
+ punpckldq mm0, mm0 ; v7 v6 v5 v4 v7 v6 v5 v4
+ punpckhdq mm1, mm1 ; v3 v2 v1 v0 v3 v2 v1 v0
+ movq [edi], mm0
+ sub esi, 8
+ movq [edi + 8], mm1
+ sub edi, 16
+ sub ecx, 2
+ jnz loop4_pass4
+ EMMS
+ }
+ }
+
+ sptr -= (width_mmx*4 - 4); // sign fixed
+ dp -= (width_mmx*8 - 4); // sign fixed
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ sptr -= 4;
+ png_memcpy(v, sptr, 4);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ dp -= 4;
+ png_memcpy(dp, v, 4);
+ }
+ }
+ }
+
+ } /* end of pixel_bytes == 4 */
+
+ else if (pixel_bytes == 6)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, 6);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, 6);
+ dp -= 6;
+ }
+ sptr -= 6;
+ }
+ } /* end of pixel_bytes == 6 */
+
+ else
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr-= pixel_bytes;
+ }
+ }
+ } /* end of mmx_supported */
+
+ else /* MMX not supported: use modified C code - takes advantage
+ * of inlining of memcpy for a constant */
+ {
+ if (pixel_bytes == 1)
+ {
+ for (i = width; i; i--)
+ {
+ int j;
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ *dp-- = *sptr;
+ sptr--;
+ }
+ }
+ else if (pixel_bytes == 3)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr -= pixel_bytes;
+ }
+ }
+ else if (pixel_bytes == 2)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr -= pixel_bytes;
+ }
+ }
+ else if (pixel_bytes == 4)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr -= pixel_bytes;
+ }
+ }
+ else if (pixel_bytes == 6)
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr -= pixel_bytes;
+ }
+ }
+ else
+ {
+ for (i = width; i; i--)
+ {
+ png_byte v[8];
+ int j;
+ png_memcpy(v, sptr, pixel_bytes);
+ for (j = 0; j < png_pass_inc[pass]; j++)
+ {
+ png_memcpy(dp, v, pixel_bytes);
+ dp -= pixel_bytes;
+ }
+ sptr -= pixel_bytes;
+ }
+ }
+
+ } /* end of MMX not supported */
+ break;
+ }
+ } /* end switch (row_info->pixel_depth) */
+
+ row_info->width = final_width;
+ row_info->rowbytes = ((final_width *
+ (png_uint_32)row_info->pixel_depth + 7) >> 3);
+ }
+
+}
+
+#endif /* PNG_READ_INTERLACING_SUPPORTED */
+
+
+// These variables are utilized in the functions below. They are declared
+// globally here to ensure alignment on 8-byte boundaries.
+
+union uAll {
+ __int64 use;
+ double align;
+} LBCarryMask = {0x0101010101010101},
+ HBClearMask = {0x7f7f7f7f7f7f7f7f},
+ ActiveMask, ActiveMask2, ActiveMaskEnd, ShiftBpp, ShiftRem;
+
+
+// Optimized code for PNG Average filter decoder
+void /* PRIVATE */
+png_read_filter_row_mmx_avg(png_row_infop row_info, png_bytep row
+ , png_bytep prev_row)
+{
+ int bpp;
+ png_uint_32 FullLength;
+ png_uint_32 MMXLength;
+ //png_uint_32 len;
+ int diff;
+
+ bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel
+ FullLength = row_info->rowbytes; // # of bytes to filter
+ _asm {
+ // Init address pointers and offset
+ mov edi, row // edi ==> Avg(x)
+ xor ebx, ebx // ebx ==> x
+ mov edx, edi
+ mov esi, prev_row // esi ==> Prior(x)
+ sub edx, bpp // edx ==> Raw(x-bpp)
+
+ xor eax, eax
+ // Compute the Raw value for the first bpp bytes
+ // Raw(x) = Avg(x) + (Prior(x)/2)
+davgrlp:
+ mov al, [esi + ebx] // Load al with Prior(x)
+ inc ebx
+ shr al, 1 // divide by 2
+ add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx
+ cmp ebx, bpp
+ mov [edi+ebx-1], al // Write back Raw(x);
+ // mov does not affect flags; -1 to offset inc ebx
+ jb davgrlp
+ // get # of bytes to alignment
+ mov diff, edi // take start of row
+ add diff, ebx // add bpp
+ add diff, 0xf // add 7 + 8 to incr past alignment boundary
+ and diff, 0xfffffff8 // mask to alignment boundary
+ sub diff, edi // subtract from start ==> value ebx at alignment
+ jz davggo
+ // fix alignment
+ // Compute the Raw value for the bytes upto the alignment boundary
+ // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2)
+ xor ecx, ecx
+davglp1:
+ xor eax, eax
+ mov cl, [esi + ebx] // load cl with Prior(x)
+ mov al, [edx + ebx] // load al with Raw(x-bpp)
+ add ax, cx
+ inc ebx
+ shr ax, 1 // divide by 2
+ add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx
+ cmp ebx, diff // Check if at alignment boundary
+ mov [edi+ebx-1], al // Write back Raw(x);
+ // mov does not affect flags; -1 to offset inc ebx
+ jb davglp1 // Repeat until at alignment boundary
+davggo:
+ mov eax, FullLength
+ mov ecx, eax
+ sub eax, ebx // subtract alignment fix
+ and eax, 0x00000007 // calc bytes over mult of 8
+ sub ecx, eax // drop over bytes from original length
+ mov MMXLength, ecx
+ } // end _asm block
+ // Now do the math for the rest of the row
+ switch ( bpp )
+ {
+ case 3:
+ {
+ ActiveMask.use = 0x0000000000ffffff;
+ ShiftBpp.use = 24; // == 3 * 8
+ ShiftRem.use = 40; // == 64 - 24
+ _asm {
+ // Re-init address pointers and offset
+ movq mm7, ActiveMask
+ mov ebx, diff // ebx ==> x = offset to alignment boundary
+ movq mm5, LBCarryMask
+ mov edi, row // edi ==> Avg(x)
+ movq mm4, HBClearMask
+ mov esi, prev_row // esi ==> Prior(x)
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes
+ // (we correct position in loop below)
+davg3lp:
+ movq mm0, [edi + ebx] // Load mm0 with Avg(x)
+ // Add (Prev_row/2) to Average
+ movq mm3, mm5
+ psrlq mm2, ShiftRem // Correct position Raw(x-bpp) data
+ movq mm1, [esi + ebx] // Load mm1 with Prior(x)
+ movq mm6, mm7
+ pand mm3, mm1 // get lsb for each prev_row byte
+ psrlq mm1, 1 // divide prev_row bytes by 2
+ pand mm1, mm4 // clear invalid bit 7 of each byte
+ paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte
+ // Add 1st active group (Raw(x-bpp)/2) to Average with LBCarry
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 1 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active
+ // byte
+ // Add 2nd active group (Raw(x-bpp)/2) to Average with LBCarry
+ psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 3-5
+ movq mm2, mm0 // mov updated Raws to mm2
+ psllq mm2, ShiftBpp // shift data to position correctly
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active
+ // byte
+
+ // Add 3rd active group (Raw(x-bpp)/2) to Average with LBCarry
+ psllq mm6, ShiftBpp // shift the mm6 mask to cover the last two
+ // bytes
+ movq mm2, mm0 // mov updated Raws to mm2
+ psllq mm2, ShiftBpp // shift data to position correctly
+ // Data only needs to be shifted once here to
+ // get the correct x-bpp offset.
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg
+ add ebx, 8
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active
+ // byte
+
+ // Now ready to write back to memory
+ movq [edi + ebx - 8], mm0
+ // Move updated Raw(x) to use as Raw(x-bpp) for next loop
+ cmp ebx, MMXLength
+ movq mm2, mm0 // mov updated Raw(x) to mm2
+ jb davg3lp
+ } // end _asm block
+ }
+ break;
+
+ case 6:
+ case 4:
+ case 7:
+ case 5:
+ {
+ ActiveMask.use = 0xffffffffffffffff; // use shift below to clear
+ // appropriate inactive bytes
+ ShiftBpp.use = bpp << 3;
+ ShiftRem.use = 64 - ShiftBpp.use;
+ _asm {
+ movq mm4, HBClearMask
+ // Re-init address pointers and offset
+ mov ebx, diff // ebx ==> x = offset to alignment boundary
+ // Load ActiveMask and clear all bytes except for 1st active group
+ movq mm7, ActiveMask
+ mov edi, row // edi ==> Avg(x)
+ psrlq mm7, ShiftRem
+ mov esi, prev_row // esi ==> Prior(x)
+ movq mm6, mm7
+ movq mm5, LBCarryMask
+ psllq mm6, ShiftBpp // Create mask for 2nd active group
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes
+ // (we correct position in loop below)
+davg4lp:
+ movq mm0, [edi + ebx]
+ psrlq mm2, ShiftRem // shift data to position correctly
+ movq mm1, [esi + ebx]
+ // Add (Prev_row/2) to Average
+ movq mm3, mm5
+ pand mm3, mm1 // get lsb for each prev_row byte
+ psrlq mm1, 1 // divide prev_row bytes by 2
+ pand mm1, mm4 // clear invalid bit 7 of each byte
+ paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte
+ // Add 1st active group (Raw(x-bpp)/2) to Average with LBCarry
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm7 // Leave only Active Group 1 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active
+ // byte
+ // Add 2nd active group (Raw(x-bpp)/2) to Average with LBCarry
+ movq mm2, mm0 // mov updated Raws to mm2
+ psllq mm2, ShiftBpp // shift data to position correctly
+ add ebx, 8
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active
+ // byte
+ cmp ebx, MMXLength
+ // Now ready to write back to memory
+ movq [edi + ebx - 8], mm0
+ // Prep Raw(x-bpp) for next loop
+ movq mm2, mm0 // mov updated Raws to mm2
+ jb davg4lp
+ } // end _asm block
+ }
+ break;
+ case 2:
+ {
+ ActiveMask.use = 0x000000000000ffff;
+ ShiftBpp.use = 16; // == 2 * 8 [BUGFIX]
+ ShiftRem.use = 48; // == 64 - 16 [BUGFIX]
+ _asm {
+ // Load ActiveMask
+ movq mm7, ActiveMask
+ // Re-init address pointers and offset
+ mov ebx, diff // ebx ==> x = offset to alignment boundary
+ movq mm5, LBCarryMask
+ mov edi, row // edi ==> Avg(x)
+ movq mm4, HBClearMask
+ mov esi, prev_row // esi ==> Prior(x)
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes
+ // (we correct position in loop below)
+davg2lp:
+ movq mm0, [edi + ebx]
+ psrlq mm2, ShiftRem // shift data to position correctly [BUGFIX]
+ movq mm1, [esi + ebx]
+ // Add (Prev_row/2) to Average
+ movq mm3, mm5
+ pand mm3, mm1 // get lsb for each prev_row byte
+ psrlq mm1, 1 // divide prev_row bytes by 2
+ pand mm1, mm4 // clear invalid bit 7 of each byte
+ movq mm6, mm7
+ paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte
+ // Add 1st active group (Raw(x-bpp)/2) to Average with LBCarry
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 1 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte
+ // Add 2nd active group (Raw(x-bpp)/2) to Average with LBCarry
+ psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 2 & 3
+ movq mm2, mm0 // mov updated Raws to mm2
+ psllq mm2, ShiftBpp // shift data to position correctly
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte
+
+ // Add rdd active group (Raw(x-bpp)/2) to Average with LBCarry
+ psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 4 & 5
+ movq mm2, mm0 // mov updated Raws to mm2
+ psllq mm2, ShiftBpp // shift data to position correctly
+ // Data only needs to be shifted once here to
+ // get the correct x-bpp offset.
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte
+
+ // Add 4th active group (Raw(x-bpp)/2) to Average with LBCarry
+ psllq mm6, ShiftBpp // shift the mm6 mask to cover bytes 6 & 7
+ movq mm2, mm0 // mov updated Raws to mm2
+ psllq mm2, ShiftBpp // shift data to position correctly
+ // Data only needs to be shifted once here to
+ // get the correct x-bpp offset.
+ add ebx, 8
+ movq mm1, mm3 // now use mm1 for getting LBCarrys
+ pand mm1, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1 (Only valid for active group)
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm2, mm1 // add LBCarrys to (Raw(x-bpp)/2) for each byte
+ pand mm2, mm6 // Leave only Active Group 2 bytes to add to Avg
+ paddb mm0, mm2 // add (Raw/2) + LBCarrys to Avg for each Active byte
+
+ cmp ebx, MMXLength
+ // Now ready to write back to memory
+ movq [edi + ebx - 8], mm0
+ // Prep Raw(x-bpp) for next loop
+ movq mm2, mm0 // mov updated Raws to mm2
+ jb davg2lp
+ } // end _asm block
+ }
+ break;
+
+ case 1: // bpp == 1
+ {
+ _asm {
+ // Re-init address pointers and offset
+ mov ebx, diff // ebx ==> x = offset to alignment boundary
+ mov edi, row // edi ==> Avg(x)
+ cmp ebx, FullLength // Test if offset at end of array
+ jnb davg1end
+ // Do Paeth decode for remaining bytes
+ mov esi, prev_row // esi ==> Prior(x)
+ mov edx, edi
+ xor ecx, ecx // zero ecx before using cl & cx in loop below
+ sub edx, bpp // edx ==> Raw(x-bpp)
+davg1lp:
+ // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2)
+ xor eax, eax
+ mov cl, [esi + ebx] // load cl with Prior(x)
+ mov al, [edx + ebx] // load al with Raw(x-bpp)
+ add ax, cx
+ inc ebx
+ shr ax, 1 // divide by 2
+ add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx
+ cmp ebx, FullLength // Check if at end of array
+ mov [edi+ebx-1], al // Write back Raw(x);
+ // mov does not affect flags; -1 to offset inc ebx
+ jb davg1lp
+davg1end:
+ } // end _asm block
+ }
+ return;
+
+ case 8: // bpp == 8
+ {
+ _asm {
+ // Re-init address pointers and offset
+ mov ebx, diff // ebx ==> x = offset to alignment boundary
+ movq mm5, LBCarryMask
+ mov edi, row // edi ==> Avg(x)
+ movq mm4, HBClearMask
+ mov esi, prev_row // esi ==> Prior(x)
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm2, [edi + ebx - 8] // Load previous aligned 8 bytes
+ // (NO NEED to correct position in loop below)
+davg8lp:
+ movq mm0, [edi + ebx]
+ movq mm3, mm5
+ movq mm1, [esi + ebx]
+ add ebx, 8
+ pand mm3, mm1 // get lsb for each prev_row byte
+ psrlq mm1, 1 // divide prev_row bytes by 2
+ pand mm3, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm1, mm4 // clear invalid bit 7 of each byte
+ paddb mm0, mm3 // add LBCarrys to Avg for each byte
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte
+ paddb mm0, mm2 // add (Raw/2) to Avg for each byte
+ cmp ebx, MMXLength
+ movq [edi + ebx - 8], mm0
+ movq mm2, mm0 // reuse as Raw(x-bpp)
+ jb davg8lp
+ } // end _asm block
+ }
+ break;
+ default: // bpp greater than 8
+ {
+ _asm {
+ movq mm5, LBCarryMask
+ // Re-init address pointers and offset
+ mov ebx, diff // ebx ==> x = offset to alignment boundary
+ mov edi, row // edi ==> Avg(x)
+ movq mm4, HBClearMask
+ mov edx, edi
+ mov esi, prev_row // esi ==> Prior(x)
+ sub edx, bpp // edx ==> Raw(x-bpp)
+davgAlp:
+ movq mm0, [edi + ebx]
+ movq mm3, mm5
+ movq mm1, [esi + ebx]
+ pand mm3, mm1 // get lsb for each prev_row byte
+ movq mm2, [edx + ebx]
+ psrlq mm1, 1 // divide prev_row bytes by 2
+ pand mm3, mm2 // get LBCarrys for each byte where both
+ // lsb's were == 1
+ psrlq mm2, 1 // divide raw bytes by 2
+ pand mm1, mm4 // clear invalid bit 7 of each byte
+ paddb mm0, mm3 // add LBCarrys to Avg for each byte
+ pand mm2, mm4 // clear invalid bit 7 of each byte
+ paddb mm0, mm1 // add (Prev_row/2) to Avg for each byte
+ add ebx, 8
+ paddb mm0, mm2 // add (Raw/2) to Avg for each byte
+ cmp ebx, MMXLength
+ movq [edi + ebx - 8], mm0
+ jb davgAlp
+ } // end _asm block
+ }
+ break;
+ } // end switch ( bpp )
+
+ _asm {
+ // MMX acceleration complete now do clean-up
+ // Check if any remaining bytes left to decode
+ mov ebx, MMXLength // ebx ==> x = offset bytes remaining after MMX
+ mov edi, row // edi ==> Avg(x)
+ cmp ebx, FullLength // Test if offset at end of array
+ jnb davgend
+ // Do Paeth decode for remaining bytes
+ mov esi, prev_row // esi ==> Prior(x)
+ mov edx, edi
+ xor ecx, ecx // zero ecx before using cl & cx in loop below
+ sub edx, bpp // edx ==> Raw(x-bpp)
+davglp2:
+ // Raw(x) = Avg(x) + ((Raw(x-bpp) + Prior(x))/2)
+ xor eax, eax
+ mov cl, [esi + ebx] // load cl with Prior(x)
+ mov al, [edx + ebx] // load al with Raw(x-bpp)
+ add ax, cx
+ inc ebx
+ shr ax, 1 // divide by 2
+ add al, [edi+ebx-1] // Add Avg(x); -1 to offset inc ebx
+ cmp ebx, FullLength // Check if at end of array
+ mov [edi+ebx-1], al // Write back Raw(x);
+ // mov does not affect flags; -1 to offset inc ebx
+ jb davglp2
+davgend:
+ emms // End MMX instructions; prep for possible FP instrs.
+ } // end _asm block
+}
+
+// Optimized code for PNG Paeth filter decoder
+void /* PRIVATE */
+png_read_filter_row_mmx_paeth(png_row_infop row_info, png_bytep row,
+ png_bytep prev_row)
+{
+ png_uint_32 FullLength;
+ png_uint_32 MMXLength;
+ //png_uint_32 len;
+ int bpp;
+ int diff;
+ //int ptemp;
+ int patemp, pbtemp, pctemp;
+
+ bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel
+ FullLength = row_info->rowbytes; // # of bytes to filter
+ _asm
+ {
+ xor ebx, ebx // ebx ==> x offset
+ mov edi, row
+ xor edx, edx // edx ==> x-bpp offset
+ mov esi, prev_row
+ xor eax, eax
+
+ // Compute the Raw value for the first bpp bytes
+ // Note: the formula works out to be always
+ // Paeth(x) = Raw(x) + Prior(x) where x < bpp
+dpthrlp:
+ mov al, [edi + ebx]
+ add al, [esi + ebx]
+ inc ebx
+ cmp ebx, bpp
+ mov [edi + ebx - 1], al
+ jb dpthrlp
+ // get # of bytes to alignment
+ mov diff, edi // take start of row
+ add diff, ebx // add bpp
+ xor ecx, ecx
+ add diff, 0xf // add 7 + 8 to incr past alignment boundary
+ and diff, 0xfffffff8 // mask to alignment boundary
+ sub diff, edi // subtract from start ==> value ebx at alignment
+ jz dpthgo
+ // fix alignment
+dpthlp1:
+ xor eax, eax
+ // pav = p - a = (a + b - c) - a = b - c
+ mov al, [esi + ebx] // load Prior(x) into al
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ sub eax, ecx // subtract Prior(x-bpp)
+ mov patemp, eax // Save pav for later use
+ xor eax, eax
+ // pbv = p - b = (a + b - c) - b = a - c
+ mov al, [edi + edx] // load Raw(x-bpp) into al
+ sub eax, ecx // subtract Prior(x-bpp)
+ mov ecx, eax
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ add eax, patemp // pcv = pav + pbv
+ // pc = abs(pcv)
+ test eax, 0x80000000
+ jz dpthpca
+ neg eax // reverse sign of neg values
+dpthpca:
+ mov pctemp, eax // save pc for later use
+ // pb = abs(pbv)
+ test ecx, 0x80000000
+ jz dpthpba
+ neg ecx // reverse sign of neg values
+dpthpba:
+ mov pbtemp, ecx // save pb for later use
+ // pa = abs(pav)
+ mov eax, patemp
+ test eax, 0x80000000
+ jz dpthpaa
+ neg eax // reverse sign of neg values
+dpthpaa:
+ mov patemp, eax // save pa for later use
+ // test if pa <= pb
+ cmp eax, ecx
+ jna dpthabb
+ // pa > pb; now test if pb <= pc
+ cmp ecx, pctemp
+ jna dpthbbc
+ // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ jmp dpthpaeth
+dpthbbc:
+ // pb <= pc; Raw(x) = Paeth(x) + Prior(x)
+ mov cl, [esi + ebx] // load Prior(x) into cl
+ jmp dpthpaeth
+dpthabb:
+ // pa <= pb; now test if pa <= pc
+ cmp eax, pctemp
+ jna dpthabc
+ // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ jmp dpthpaeth
+dpthabc:
+ // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp)
+ mov cl, [edi + edx] // load Raw(x-bpp) into cl
+dpthpaeth:
+ inc ebx
+ inc edx
+ // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256
+ add [edi + ebx - 1], cl
+ cmp ebx, diff
+ jb dpthlp1
+dpthgo:
+ mov ecx, FullLength
+ mov eax, ecx
+ sub eax, ebx // subtract alignment fix
+ and eax, 0x00000007 // calc bytes over mult of 8
+ sub ecx, eax // drop over bytes from original length
+ mov MMXLength, ecx
+ } // end _asm block
+ // Now do the math for the rest of the row
+ switch ( bpp )
+ {
+ case 3:
+ {
+ ActiveMask.use = 0x0000000000ffffff;
+ ActiveMaskEnd.use = 0xffff000000000000;
+ ShiftBpp.use = 24; // == bpp(3) * 8
+ ShiftRem.use = 40; // == 64 - 24
+ _asm
+ {
+ mov ebx, diff
+ mov edi, row
+ mov esi, prev_row
+ pxor mm0, mm0
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8]
+dpth3lp:
+ psrlq mm1, ShiftRem // shift last 3 bytes to 1st 3 bytes
+ movq mm2, [esi + ebx] // load b=Prior(x)
+ punpcklbw mm1, mm0 // Unpack High bytes of a
+ movq mm3, [esi+ebx-8] // Prep c=Prior(x-bpp) bytes
+ punpcklbw mm2, mm0 // Unpack High bytes of b
+ psrlq mm3, ShiftRem // shift last 3 bytes to 1st 3 bytes
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ punpcklbw mm3, mm0 // Unpack High bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ paddw mm7, mm3
+ pxor mm0, mm0
+ packuswb mm7, mm1
+ movq mm3, [esi + ebx] // load c=Prior(x-bpp)
+ pand mm7, ActiveMask
+ movq mm2, mm3 // load b=Prior(x) step 1
+ paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x)
+ punpcklbw mm3, mm0 // Unpack High bytes of c
+ movq [edi + ebx], mm7 // write back updated value
+ movq mm1, mm7 // Now mm1 will be used as Raw(x-bpp)
+ // Now do Paeth for 2nd set of bytes (3-5)
+ psrlq mm2, ShiftBpp // load b=Prior(x) step 2
+ punpcklbw mm1, mm0 // Unpack High bytes of a
+ pxor mm7, mm7
+ punpcklbw mm2, mm0 // Unpack High bytes of b
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ psubw mm5, mm3
+ psubw mm4, mm3
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) =
+ // pav + pbv = pbv + pav
+ movq mm6, mm5
+ paddw mm6, mm4
+
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm5 // Create mask pbv bytes < 0
+ pcmpgtw mm7, mm4 // Create mask pav bytes < 0
+ pand mm0, mm5 // Only pbv bytes < 0 in mm0
+ pand mm7, mm4 // Only pav bytes < 0 in mm7
+ psubw mm5, mm0
+ psubw mm4, mm7
+ psubw mm5, mm0
+ psubw mm4, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ movq mm2, [esi + ebx] // load b=Prior(x)
+ pand mm3, mm7
+ pandn mm7, mm0
+ pxor mm1, mm1
+ paddw mm7, mm3
+ pxor mm0, mm0
+ packuswb mm7, mm1
+ movq mm3, mm2 // load c=Prior(x-bpp) step 1
+ pand mm7, ActiveMask
+ punpckhbw mm2, mm0 // Unpack High bytes of b
+ psllq mm7, ShiftBpp // Shift bytes to 2nd group of 3 bytes
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x)
+ psllq mm3, ShiftBpp // load c=Prior(x-bpp) step 2
+ movq [edi + ebx], mm7 // write back updated value
+ movq mm1, mm7
+ punpckhbw mm3, mm0 // Unpack High bytes of c
+ psllq mm1, ShiftBpp // Shift bytes
+ // Now mm1 will be used as Raw(x-bpp)
+ // Now do Paeth for 3rd, and final, set of bytes (6-7)
+ pxor mm7, mm7
+ punpckhbw mm1, mm0 // Unpack High bytes of a
+ psubw mm4, mm3
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ pxor mm0, mm0
+ paddw mm6, mm5
+
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ pandn mm0, mm1
+ pandn mm7, mm4
+ paddw mm0, mm2
+ paddw mm7, mm5
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pand mm3, mm7
+ pandn mm7, mm0
+ paddw mm7, mm3
+ pxor mm1, mm1
+ packuswb mm1, mm7
+ // Step ebx to next set of 8 bytes and repeat loop til done
+ add ebx, 8
+ pand mm1, ActiveMaskEnd
+ paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x)
+
+ cmp ebx, MMXLength
+ pxor mm0, mm0 // pxor does not affect flags
+ movq [edi + ebx - 8], mm1 // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ // mm3 ready to be used as Prior(x-bpp) next loop
+ jb dpth3lp
+ } // end _asm block
+ }
+ break;
+
+ case 6:
+ case 7:
+ case 5:
+ {
+ ActiveMask.use = 0x00000000ffffffff;
+ ActiveMask2.use = 0xffffffff00000000;
+ ShiftBpp.use = bpp << 3; // == bpp * 8
+ ShiftRem.use = 64 - ShiftBpp.use;
+ _asm
+ {
+ mov ebx, diff
+ mov edi, row
+ mov esi, prev_row
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8]
+ pxor mm0, mm0
+dpth6lp:
+ // Must shift to position Raw(x-bpp) data
+ psrlq mm1, ShiftRem
+ // Do first set of 4 bytes
+ movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes
+ punpcklbw mm1, mm0 // Unpack Low bytes of a
+ movq mm2, [esi + ebx] // load b=Prior(x)
+ punpcklbw mm2, mm0 // Unpack Low bytes of b
+ // Must shift to position Prior(x-bpp) data
+ psrlq mm3, ShiftRem
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ punpcklbw mm3, mm0 // Unpack Low bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ paddw mm7, mm3
+ pxor mm0, mm0
+ packuswb mm7, mm1
+ movq mm3, [esi + ebx - 8] // load c=Prior(x-bpp)
+ pand mm7, ActiveMask
+ psrlq mm3, ShiftRem
+ movq mm2, [esi + ebx] // load b=Prior(x) step 1
+ paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x)
+ movq mm6, mm2
+ movq [edi + ebx], mm7 // write back updated value
+ movq mm1, [edi+ebx-8]
+ psllq mm6, ShiftBpp
+ movq mm5, mm7
+ psrlq mm1, ShiftRem
+ por mm3, mm6
+ psllq mm5, ShiftBpp
+ punpckhbw mm3, mm0 // Unpack High bytes of c
+ por mm1, mm5
+ // Do second set of 4 bytes
+ punpckhbw mm2, mm0 // Unpack High bytes of b
+ punpckhbw mm1, mm0 // Unpack High bytes of a
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ pxor mm1, mm1
+ paddw mm7, mm3
+ pxor mm0, mm0
+ // Step ex to next set of 8 bytes and repeat loop til done
+ add ebx, 8
+ packuswb mm1, mm7
+ paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x)
+ cmp ebx, MMXLength
+ movq [edi + ebx - 8], mm1 // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ jb dpth6lp
+ } // end _asm block
+ }
+ break;
+
+ case 4:
+ {
+ ActiveMask.use = 0x00000000ffffffff;
+ _asm {
+ mov ebx, diff
+ mov edi, row
+ mov esi, prev_row
+ pxor mm0, mm0
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8] // Only time should need to read
+ // a=Raw(x-bpp) bytes
+dpth4lp:
+ // Do first set of 4 bytes
+ movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes
+ punpckhbw mm1, mm0 // Unpack Low bytes of a
+ movq mm2, [esi + ebx] // load b=Prior(x)
+ punpcklbw mm2, mm0 // Unpack High bytes of b
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ punpckhbw mm3, mm0 // Unpack High bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ paddw mm7, mm3
+ pxor mm0, mm0
+ packuswb mm7, mm1
+ movq mm3, [esi + ebx] // load c=Prior(x-bpp)
+ pand mm7, ActiveMask
+ movq mm2, mm3 // load b=Prior(x) step 1
+ paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x)
+ punpcklbw mm3, mm0 // Unpack High bytes of c
+ movq [edi + ebx], mm7 // write back updated value
+ movq mm1, mm7 // Now mm1 will be used as Raw(x-bpp)
+ // Do second set of 4 bytes
+ punpckhbw mm2, mm0 // Unpack Low bytes of b
+ punpcklbw mm1, mm0 // Unpack Low bytes of a
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ pxor mm1, mm1
+ paddw mm7, mm3
+ pxor mm0, mm0
+ // Step ex to next set of 8 bytes and repeat loop til done
+ add ebx, 8
+ packuswb mm1, mm7
+ paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x)
+ cmp ebx, MMXLength
+ movq [edi + ebx - 8], mm1 // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ jb dpth4lp
+ } // end _asm block
+ }
+ break;
+ case 8: // bpp == 8
+ {
+ ActiveMask.use = 0x00000000ffffffff;
+ _asm {
+ mov ebx, diff
+ mov edi, row
+ mov esi, prev_row
+ pxor mm0, mm0
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8] // Only time should need to read
+ // a=Raw(x-bpp) bytes
+dpth8lp:
+ // Do first set of 4 bytes
+ movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes
+ punpcklbw mm1, mm0 // Unpack Low bytes of a
+ movq mm2, [esi + ebx] // load b=Prior(x)
+ punpcklbw mm2, mm0 // Unpack Low bytes of b
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ punpcklbw mm3, mm0 // Unpack Low bytes of c
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ paddw mm7, mm3
+ pxor mm0, mm0
+ packuswb mm7, mm1
+ movq mm3, [esi+ebx-8] // read c=Prior(x-bpp) bytes
+ pand mm7, ActiveMask
+ movq mm2, [esi + ebx] // load b=Prior(x)
+ paddb mm7, [edi + ebx] // add Paeth predictor with Raw(x)
+ punpckhbw mm3, mm0 // Unpack High bytes of c
+ movq [edi + ebx], mm7 // write back updated value
+ movq mm1, [edi+ebx-8] // read a=Raw(x-bpp) bytes
+
+ // Do second set of 4 bytes
+ punpckhbw mm2, mm0 // Unpack High bytes of b
+ punpckhbw mm1, mm0 // Unpack High bytes of a
+ // pav = p - a = (a + b - c) - a = b - c
+ movq mm4, mm2
+ // pbv = p - b = (a + b - c) - b = a - c
+ movq mm5, mm1
+ psubw mm4, mm3
+ pxor mm7, mm7
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ movq mm6, mm4
+ psubw mm5, mm3
+ // pa = abs(p-a) = abs(pav)
+ // pb = abs(p-b) = abs(pbv)
+ // pc = abs(p-c) = abs(pcv)
+ pcmpgtw mm0, mm4 // Create mask pav bytes < 0
+ paddw mm6, mm5
+ pand mm0, mm4 // Only pav bytes < 0 in mm7
+ pcmpgtw mm7, mm5 // Create mask pbv bytes < 0
+ psubw mm4, mm0
+ pand mm7, mm5 // Only pbv bytes < 0 in mm0
+ psubw mm4, mm0
+ psubw mm5, mm7
+ pxor mm0, mm0
+ pcmpgtw mm0, mm6 // Create mask pcv bytes < 0
+ pand mm0, mm6 // Only pav bytes < 0 in mm7
+ psubw mm5, mm7
+ psubw mm6, mm0
+ // test pa <= pb
+ movq mm7, mm4
+ psubw mm6, mm0
+ pcmpgtw mm7, mm5 // pa > pb?
+ movq mm0, mm7
+ // use mm7 mask to merge pa & pb
+ pand mm5, mm7
+ // use mm0 mask copy to merge a & b
+ pand mm2, mm0
+ pandn mm7, mm4
+ pandn mm0, mm1
+ paddw mm7, mm5
+ paddw mm0, mm2
+ // test ((pa <= pb)? pa:pb) <= pc
+ pcmpgtw mm7, mm6 // pab > pc?
+ pxor mm1, mm1
+ pand mm3, mm7
+ pandn mm7, mm0
+ pxor mm1, mm1
+ paddw mm7, mm3
+ pxor mm0, mm0
+ // Step ex to next set of 8 bytes and repeat loop til done
+ add ebx, 8
+ packuswb mm1, mm7
+ paddb mm1, [edi + ebx - 8] // add Paeth predictor with Raw(x)
+ cmp ebx, MMXLength
+ movq [edi + ebx - 8], mm1 // write back updated value
+ // mm1 will be used as Raw(x-bpp) next loop
+ jb dpth8lp
+ } // end _asm block
+ }
+ break;
+
+ case 1: // bpp = 1
+ case 2: // bpp = 2
+ default: // bpp > 8
+ {
+ _asm {
+ mov ebx, diff
+ cmp ebx, FullLength
+ jnb dpthdend
+ mov edi, row
+ mov esi, prev_row
+ // Do Paeth decode for remaining bytes
+ mov edx, ebx
+ xor ecx, ecx // zero ecx before using cl & cx in loop below
+ sub edx, bpp // Set edx = ebx - bpp
+dpthdlp:
+ xor eax, eax
+ // pav = p - a = (a + b - c) - a = b - c
+ mov al, [esi + ebx] // load Prior(x) into al
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ sub eax, ecx // subtract Prior(x-bpp)
+ mov patemp, eax // Save pav for later use
+ xor eax, eax
+ // pbv = p - b = (a + b - c) - b = a - c
+ mov al, [edi + edx] // load Raw(x-bpp) into al
+ sub eax, ecx // subtract Prior(x-bpp)
+ mov ecx, eax
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ add eax, patemp // pcv = pav + pbv
+ // pc = abs(pcv)
+ test eax, 0x80000000
+ jz dpthdpca
+ neg eax // reverse sign of neg values
+dpthdpca:
+ mov pctemp, eax // save pc for later use
+ // pb = abs(pbv)
+ test ecx, 0x80000000
+ jz dpthdpba
+ neg ecx // reverse sign of neg values
+dpthdpba:
+ mov pbtemp, ecx // save pb for later use
+ // pa = abs(pav)
+ mov eax, patemp
+ test eax, 0x80000000
+ jz dpthdpaa
+ neg eax // reverse sign of neg values
+dpthdpaa:
+ mov patemp, eax // save pa for later use
+ // test if pa <= pb
+ cmp eax, ecx
+ jna dpthdabb
+ // pa > pb; now test if pb <= pc
+ cmp ecx, pctemp
+ jna dpthdbbc
+ // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ jmp dpthdpaeth
+dpthdbbc:
+ // pb <= pc; Raw(x) = Paeth(x) + Prior(x)
+ mov cl, [esi + ebx] // load Prior(x) into cl
+ jmp dpthdpaeth
+dpthdabb:
+ // pa <= pb; now test if pa <= pc
+ cmp eax, pctemp
+ jna dpthdabc
+ // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ jmp dpthdpaeth
+dpthdabc:
+ // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp)
+ mov cl, [edi + edx] // load Raw(x-bpp) into cl
+dpthdpaeth:
+ inc ebx
+ inc edx
+ // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256
+ add [edi + ebx - 1], cl
+ cmp ebx, FullLength
+ jb dpthdlp
+dpthdend:
+ } // end _asm block
+ }
+ return; // No need to go further with this one
+ } // end switch ( bpp )
+ _asm
+ {
+ // MMX acceleration complete now do clean-up
+ // Check if any remaining bytes left to decode
+ mov ebx, MMXLength
+ cmp ebx, FullLength
+ jnb dpthend
+ mov edi, row
+ mov esi, prev_row
+ // Do Paeth decode for remaining bytes
+ mov edx, ebx
+ xor ecx, ecx // zero ecx before using cl & cx in loop below
+ sub edx, bpp // Set edx = ebx - bpp
+dpthlp2:
+ xor eax, eax
+ // pav = p - a = (a + b - c) - a = b - c
+ mov al, [esi + ebx] // load Prior(x) into al
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ sub eax, ecx // subtract Prior(x-bpp)
+ mov patemp, eax // Save pav for later use
+ xor eax, eax
+ // pbv = p - b = (a + b - c) - b = a - c
+ mov al, [edi + edx] // load Raw(x-bpp) into al
+ sub eax, ecx // subtract Prior(x-bpp)
+ mov ecx, eax
+ // pcv = p - c = (a + b - c) -c = (a - c) + (b - c) = pav + pbv
+ add eax, patemp // pcv = pav + pbv
+ // pc = abs(pcv)
+ test eax, 0x80000000
+ jz dpthpca2
+ neg eax // reverse sign of neg values
+dpthpca2:
+ mov pctemp, eax // save pc for later use
+ // pb = abs(pbv)
+ test ecx, 0x80000000
+ jz dpthpba2
+ neg ecx // reverse sign of neg values
+dpthpba2:
+ mov pbtemp, ecx // save pb for later use
+ // pa = abs(pav)
+ mov eax, patemp
+ test eax, 0x80000000
+ jz dpthpaa2
+ neg eax // reverse sign of neg values
+dpthpaa2:
+ mov patemp, eax // save pa for later use
+ // test if pa <= pb
+ cmp eax, ecx
+ jna dpthabb2
+ // pa > pb; now test if pb <= pc
+ cmp ecx, pctemp
+ jna dpthbbc2
+ // pb > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ jmp dpthpaeth2
+dpthbbc2:
+ // pb <= pc; Raw(x) = Paeth(x) + Prior(x)
+ mov cl, [esi + ebx] // load Prior(x) into cl
+ jmp dpthpaeth2
+dpthabb2:
+ // pa <= pb; now test if pa <= pc
+ cmp eax, pctemp
+ jna dpthabc2
+ // pa > pc; Raw(x) = Paeth(x) + Prior(x-bpp)
+ mov cl, [esi + edx] // load Prior(x-bpp) into cl
+ jmp dpthpaeth2
+dpthabc2:
+ // pa <= pc; Raw(x) = Paeth(x) + Raw(x-bpp)
+ mov cl, [edi + edx] // load Raw(x-bpp) into cl
+dpthpaeth2:
+ inc ebx
+ inc edx
+ // Raw(x) = (Paeth(x) + Paeth_Predictor( a, b, c )) mod 256
+ add [edi + ebx - 1], cl
+ cmp ebx, FullLength
+ jb dpthlp2
+dpthend:
+ emms // End MMX instructions; prep for possible FP instrs.
+ } // end _asm block
+}
+
+// Optimized code for PNG Sub filter decoder
+void /* PRIVATE */
+png_read_filter_row_mmx_sub(png_row_infop row_info, png_bytep row)
+{
+ //int test;
+ int bpp;
+ png_uint_32 FullLength;
+ png_uint_32 MMXLength;
+ int diff;
+
+ bpp = (row_info->pixel_depth + 7) >> 3; // Get # bytes per pixel
+ FullLength = row_info->rowbytes - bpp; // # of bytes to filter
+ _asm {
+ mov edi, row
+ mov esi, edi // lp = row
+ add edi, bpp // rp = row + bpp
+ xor eax, eax
+ // get # of bytes to alignment
+ mov diff, edi // take start of row
+ add diff, 0xf // add 7 + 8 to incr past
+ // alignment boundary
+ xor ebx, ebx
+ and diff, 0xfffffff8 // mask to alignment boundary
+ sub diff, edi // subtract from start ==> value
+ // ebx at alignment
+ jz dsubgo
+ // fix alignment
+dsublp1:
+ mov al, [esi+ebx]
+ add [edi+ebx], al
+ inc ebx
+ cmp ebx, diff
+ jb dsublp1
+dsubgo:
+ mov ecx, FullLength
+ mov edx, ecx
+ sub edx, ebx // subtract alignment fix
+ and edx, 0x00000007 // calc bytes over mult of 8
+ sub ecx, edx // drop over bytes from length
+ mov MMXLength, ecx
+ } // end _asm block
+
+ // Now do the math for the rest of the row
+ switch ( bpp )
+ {
+ case 3:
+ {
+ ActiveMask.use = 0x0000ffffff000000;
+ ShiftBpp.use = 24; // == 3 * 8
+ ShiftRem.use = 40; // == 64 - 24
+ _asm {
+ mov edi, row
+ movq mm7, ActiveMask // Load ActiveMask for 2nd active byte group
+ mov esi, edi // lp = row
+ add edi, bpp // rp = row + bpp
+ movq mm6, mm7
+ mov ebx, diff
+ psllq mm6, ShiftBpp // Move mask in mm6 to cover 3rd active
+ // byte group
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8]
+dsub3lp:
+ psrlq mm1, ShiftRem // Shift data for adding 1st bpp bytes
+ // no need for mask; shift clears inactive bytes
+ // Add 1st active group
+ movq mm0, [edi+ebx]
+ paddb mm0, mm1
+ // Add 2nd active group
+ movq mm1, mm0 // mov updated Raws to mm1
+ psllq mm1, ShiftBpp // shift data to position correctly
+ pand mm1, mm7 // mask to use only 2nd active group
+ paddb mm0, mm1
+ // Add 3rd active group
+ movq mm1, mm0 // mov updated Raws to mm1
+ psllq mm1, ShiftBpp // shift data to position correctly
+ pand mm1, mm6 // mask to use only 3rd active group
+ add ebx, 8
+ paddb mm0, mm1
+ cmp ebx, MMXLength
+ movq [edi+ebx-8], mm0 // Write updated Raws back to array
+ // Prep for doing 1st add at top of loop
+ movq mm1, mm0
+ jb dsub3lp
+ } // end _asm block
+ }
+ break;
+
+ case 1:
+ {
+ // Placed here just in case this is a duplicate of the
+ // non-MMX code for the SUB filter in png_read_filter_row below
+ //
+ // png_bytep rp;
+ // png_bytep lp;
+ // png_uint_32 i;
+ // bpp = (row_info->pixel_depth + 7) >> 3;
+ // for (i = (png_uint_32)bpp, rp = row + bpp, lp = row;
+ // i < row_info->rowbytes; i++, rp++, lp++)
+ // {
+ // *rp = (png_byte)(((int)(*rp) + (int)(*lp)) & 0xff);
+ // }
+ _asm {
+ mov ebx, diff
+ mov edi, row
+ cmp ebx, FullLength
+ jnb dsub1end
+ mov esi, edi // lp = row
+ xor eax, eax
+ add edi, bpp // rp = row + bpp
+dsub1lp:
+ mov al, [esi+ebx]
+ add [edi+ebx], al
+ inc ebx
+ cmp ebx, FullLength
+ jb dsub1lp
+dsub1end:
+ } // end _asm block
+ }
+ return;
+
+ case 6:
+ case 7:
+ case 4:
+ case 5:
+ {
+ ShiftBpp.use = bpp << 3;
+ ShiftRem.use = 64 - ShiftBpp.use;
+ _asm {
+ mov edi, row
+ mov ebx, diff
+ mov esi, edi // lp = row
+ add edi, bpp // rp = row + bpp
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8]
+dsub4lp:
+ psrlq mm1, ShiftRem // Shift data for adding 1st bpp bytes
+ // no need for mask; shift clears inactive bytes
+ movq mm0, [edi+ebx]
+ paddb mm0, mm1
+ // Add 2nd active group
+ movq mm1, mm0 // mov updated Raws to mm1
+ psllq mm1, ShiftBpp // shift data to position correctly
+ // there is no need for any mask
+ // since shift clears inactive bits/bytes
+ add ebx, 8
+ paddb mm0, mm1
+ cmp ebx, MMXLength
+ movq [edi+ebx-8], mm0
+ movq mm1, mm0 // Prep for doing 1st add at top of loop
+ jb dsub4lp
+ } // end _asm block
+ }
+ break;
+
+ case 2:
+ {
+ ActiveMask.use = 0x00000000ffff0000;
+ ShiftBpp.use = 16; // == 2 * 8
+ ShiftRem.use = 48; // == 64 - 16
+ _asm {
+ movq mm7, ActiveMask // Load ActiveMask for 2nd active byte group
+ mov ebx, diff
+ movq mm6, mm7
+ mov edi, row
+ psllq mm6, ShiftBpp // Move mask in mm6 to cover 3rd active
+ // byte group
+ mov esi, edi // lp = row
+ movq mm5, mm6
+ add edi, bpp // rp = row + bpp
+ psllq mm5, ShiftBpp // Move mask in mm5 to cover 4th active
+ // byte group
+ // PRIME the pump (load the first Raw(x-bpp) data set
+ movq mm1, [edi+ebx-8]
+dsub2lp:
+ // Add 1st active group
+ psrlq mm1, ShiftRem // Shift data for adding 1st bpp bytes
+ // no need for mask; shift clears inactive
+ // bytes
+ movq mm0, [edi+ebx]
+ paddb mm0, mm1
+ // Add 2nd active group
+ movq mm1, mm0 // mov updated Raws to mm1
+ psllq mm1, ShiftBpp // shift data to position correctly
+ pand mm1, mm7 // mask to use only 2nd active group
+ paddb mm0, mm1
+ // Add 3rd active group
+ movq mm1, mm0 // mov updated Raws to mm1
+ psllq mm1, ShiftBpp // shift data to position correctly
+ pand mm1, mm6 // mask to use only 3rd active group
+ paddb mm0, mm1
+ // Add 4th active group
+ movq mm1, mm0 // mov updated Raws to mm1
+ psllq mm1, ShiftBpp // shift data to position correctly
+ pand mm1, mm5 // mask to use only 4th active group
+ add ebx, 8
+ paddb mm0, mm1
+ cmp ebx, MMXLength
+ movq [edi+ebx-8], mm0 // Write updated Raws back to array
+ movq mm1, mm0 // Prep for doing 1st add at top of loop
+ jb dsub2lp
+ } // end _asm block
+ }
+ break;
+ case 8:
+ {
+ _asm {
+ mov edi, row
+ mov ebx, diff
+ mov esi, edi // lp = row
+ add edi, bpp // rp = row + bpp
+ mov ecx, MMXLength
+ movq mm7, [edi+ebx-8] // PRIME the pump (load the first
+ // Raw(x-bpp) data set
+ and ecx, 0x0000003f // calc bytes over mult of 64
+dsub8lp:
+ movq mm0, [edi+ebx] // Load Sub(x) for 1st 8 bytes
+ paddb mm0, mm7
+ movq mm1, [edi+ebx+8] // Load Sub(x) for 2nd 8 bytes
+ movq [edi+ebx], mm0 // Write Raw(x) for 1st 8 bytes
+ // Now mm0 will be used as Raw(x-bpp) for
+ // the 2nd group of 8 bytes. This will be
+ // repeated for each group of 8 bytes with
+ // the 8th group being used as the Raw(x-bpp)
+ // for the 1st group of the next loop.
+ paddb mm1, mm0
+ movq mm2, [edi+ebx+16] // Load Sub(x) for 3rd 8 bytes
+ movq [edi+ebx+8], mm1 // Write Raw(x) for 2nd 8 bytes
+ paddb mm2, mm1
+ movq mm3, [edi+ebx+24] // Load Sub(x) for 4th 8 bytes
+ movq [edi+ebx+16], mm2 // Write Raw(x) for 3rd 8 bytes
+ paddb mm3, mm2
+ movq mm4, [edi+ebx+32] // Load Sub(x) for 5th 8 bytes
+ movq [edi+ebx+24], mm3 // Write Raw(x) for 4th 8 bytes
+ paddb mm4, mm3
+ movq mm5, [edi+ebx+40] // Load Sub(x) for 6th 8 bytes
+ movq [edi+ebx+32], mm4 // Write Raw(x) for 5th 8 bytes
+ paddb mm5, mm4
+ movq mm6, [edi+ebx+48] // Load Sub(x) for 7th 8 bytes
+ movq [edi+ebx+40], mm5 // Write Raw(x) for 6th 8 bytes
+ paddb mm6, mm5
+ movq mm7, [edi+ebx+56] // Load Sub(x) for 8th 8 bytes
+ movq [edi+ebx+48], mm6 // Write Raw(x) for 7th 8 bytes
+ add ebx, 64
+ paddb mm7, mm6
+ cmp ebx, ecx
+ movq [edi+ebx-8], mm7 // Write Raw(x) for 8th 8 bytes
+ jb dsub8lp
+ cmp ebx, MMXLength
+ jnb dsub8lt8
+dsub8lpA:
+ movq mm0, [edi+ebx]
+ add ebx, 8
+ paddb mm0, mm7
+ cmp ebx, MMXLength
+ movq [edi+ebx-8], mm0 // use -8 to offset early add to ebx
+ movq mm7, mm0 // Move calculated Raw(x) data to mm1 to
+ // be the new Raw(x-bpp) for the next loop
+ jb dsub8lpA
+dsub8lt8:
+ } // end _asm block
+ }
+ break;
+
+ default: // bpp greater than 8 bytes
+ {
+ _asm {
+ mov ebx, diff
+ mov edi, row
+ mov esi, edi // lp = row
+ add edi, bpp // rp = row + bpp
+dsubAlp:
+ movq mm0, [edi+ebx]
+ movq mm1, [esi+ebx]
+ add ebx, 8
+ paddb mm0, mm1
+ cmp ebx, MMXLength
+ movq [edi+ebx-8], mm0 // mov does not affect flags; -8 to offset
+ // add ebx
+ jb dsubAlp
+ } // end _asm block
+ }
+ break;
+
+ } // end switch ( bpp )
+
+ _asm {
+ mov ebx, MMXLength
+ mov edi, row
+ cmp ebx, FullLength
+ jnb dsubend
+ mov esi, edi // lp = row
+ xor eax, eax
+ add edi, bpp // rp = row + bpp
+dsublp2:
+ mov al, [esi+ebx]
+ add [edi+ebx], al
+ inc ebx
+ cmp ebx, FullLength
+ jb dsublp2
+dsubend:
+ emms // End MMX instructions; prep for possible FP instrs.
+ } // end _asm block
+}
+
+// Optimized code for PNG Up filter decoder
+void /* PRIVATE */
+png_read_filter_row_mmx_up(png_row_infop row_info, png_bytep row,
+ png_bytep prev_row)
+{
+ png_uint_32 len;
+ len = row_info->rowbytes; // # of bytes to filter
+ _asm {
+ mov edi, row
+ // get # of bytes to alignment
+ mov ecx, edi
+ xor ebx, ebx
+ add ecx, 0x7
+ xor eax, eax
+ and ecx, 0xfffffff8
+ mov esi, prev_row
+ sub ecx, edi
+ jz dupgo
+ // fix alignment
+duplp1:
+ mov al, [edi+ebx]
+ add al, [esi+ebx]
+ inc ebx
+ cmp ebx, ecx
+ mov [edi + ebx-1], al // mov does not affect flags; -1 to offset inc ebx
+ jb duplp1
+dupgo:
+ mov ecx, len
+ mov edx, ecx
+ sub edx, ebx // subtract alignment fix
+ and edx, 0x0000003f // calc bytes over mult of 64
+ sub ecx, edx // drop over bytes from length
+ // Unrolled loop - use all MMX registers and interleave to reduce
+ // number of branch instructions (loops) and reduce partial stalls
+duploop:
+ movq mm1, [esi+ebx]
+ movq mm0, [edi+ebx]
+ movq mm3, [esi+ebx+8]
+ paddb mm0, mm1
+ movq mm2, [edi+ebx+8]
+ movq [edi+ebx], mm0
+ paddb mm2, mm3
+ movq mm5, [esi+ebx+16]
+ movq [edi+ebx+8], mm2
+ movq mm4, [edi+ebx+16]
+ movq mm7, [esi+ebx+24]
+ paddb mm4, mm5
+ movq mm6, [edi+ebx+24]
+ movq [edi+ebx+16], mm4
+ paddb mm6, mm7
+ movq mm1, [esi+ebx+32]
+ movq [edi+ebx+24], mm6
+ movq mm0, [edi+ebx+32]
+ movq mm3, [esi+ebx+40]
+ paddb mm0, mm1
+ movq mm2, [edi+ebx+40]
+ movq [edi+ebx+32], mm0
+ paddb mm2, mm3
+ movq mm5, [esi+ebx+48]
+ movq [edi+ebx+40], mm2
+ movq mm4, [edi+ebx+48]
+ movq mm7, [esi+ebx+56]
+ paddb mm4, mm5
+ movq mm6, [edi+ebx+56]
+ movq [edi+ebx+48], mm4
+ add ebx, 64
+ paddb mm6, mm7
+ cmp ebx, ecx
+ movq [edi+ebx-8], mm6 // (+56)movq does not affect flags;
+ // -8 to offset add ebx
+ jb duploop
+
+ cmp edx, 0 // Test for bytes over mult of 64
+ jz dupend
+
+
+ // 2 lines added by lcreeve@netins.net
+ // (mail 11 Jul 98 in png-implement list)
+ cmp edx, 8 //test for less than 8 bytes
+ jb duplt8
+
+
+ add ecx, edx
+ and edx, 0x00000007 // calc bytes over mult of 8
+ sub ecx, edx // drop over bytes from length
+ jz duplt8
+ // Loop using MMX registers mm0 & mm1 to update 8 bytes simultaneously
+duplpA:
+ movq mm1, [esi+ebx]
+ movq mm0, [edi+ebx]
+ add ebx, 8
+ paddb mm0, mm1
+ cmp ebx, ecx
+ movq [edi+ebx-8], mm0 // movq does not affect flags; -8 to offset add ebx
+ jb duplpA
+ cmp edx, 0 // Test for bytes over mult of 8
+ jz dupend
+duplt8:
+ xor eax, eax
+ add ecx, edx // move over byte count into counter
+ // Loop using x86 registers to update remaining bytes
+duplp2:
+ mov al, [edi + ebx]
+ add al, [esi + ebx]
+ inc ebx
+ cmp ebx, ecx
+ mov [edi + ebx-1], al // mov does not affect flags; -1 to offset inc ebx
+ jb duplp2
+dupend:
+ // Conversion of filtered row completed
+ emms // End MMX instructions; prep for possible FP instrs.
+ } // end _asm block
+}
+
+
+// Optimized png_read_filter_row routines
+void /* PRIVATE */
+png_read_filter_row(png_structp png_ptr, png_row_infop row_info, png_bytep
+ row, png_bytep prev_row, int filter)
+{
+#ifdef PNG_DEBUG
+ char filnm[10];
+#endif
+
+ if (mmx_supported == 2) {
+ /* this should have happened in png_init_mmx_flags() already */
+ png_warning(png_ptr, "asm_flags may not have been initialized");
+ png_mmx_support();
+ }
+
+#ifdef PNG_DEBUG
+ png_debug(1, "in png_read_filter_row\n");
+ switch (filter)
+ {
+ case 0: sprintf(filnm, "none");
+ break;
+ case 1: sprintf(filnm, "sub-%s",
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB)? "MMX" : "x86");
+ break;
+ case 2: sprintf(filnm, "up-%s",
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP)? "MMX" : "x86");
+ break;
+ case 3: sprintf(filnm, "avg-%s",
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG)? "MMX" : "x86");
+ break;
+ case 4: sprintf(filnm, "Paeth-%s",
+ (png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH)? "MMX":"x86");
+ break;
+ default: sprintf(filnm, "unknw");
+ break;
+ }
+ png_debug2(0,"row=%5d, %s, ", png_ptr->row_number, filnm);
+ png_debug2(0, "pd=%2d, b=%d, ", (int)row_info->pixel_depth,
+ (int)((row_info->pixel_depth + 7) >> 3));
+ png_debug1(0,"len=%8d, ", row_info->rowbytes);
+#endif /* PNG_DEBUG */
+
+ switch (filter)
+ {
+ case PNG_FILTER_VALUE_NONE:
+ break;
+
+ case PNG_FILTER_VALUE_SUB:
+ {
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_SUB) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+ {
+ png_read_filter_row_mmx_sub(row_info, row);
+ }
+ else
+ {
+ png_uint_32 i;
+ png_uint_32 istop = row_info->rowbytes;
+ png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3;
+ png_bytep rp = row + bpp;
+ png_bytep lp = row;
+
+ for (i = bpp; i < istop; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) + (int)(*lp++)) & 0xff);
+ rp++;
+ }
+ }
+ break;
+ }
+
+ case PNG_FILTER_VALUE_UP:
+ {
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_UP) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+ {
+ png_read_filter_row_mmx_up(row_info, row, prev_row);
+ }
+ else
+ {
+ png_uint_32 i;
+ png_uint_32 istop = row_info->rowbytes;
+ png_bytep rp = row;
+ png_bytep pp = prev_row;
+
+ for (i = 0; i < istop; ++i)
+ {
+ *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
+ rp++;
+ }
+ }
+ break;
+ }
+
+ case PNG_FILTER_VALUE_AVG:
+ {
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_AVG) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+ {
+ png_read_filter_row_mmx_avg(row_info, row, prev_row);
+ }
+ else
+ {
+ png_uint_32 i;
+ png_bytep rp = row;
+ png_bytep pp = prev_row;
+ png_bytep lp = row;
+ png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3;
+ png_uint_32 istop = row_info->rowbytes - bpp;
+
+ for (i = 0; i < bpp; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) +
+ ((int)(*pp++) >> 1)) & 0xff);
+ rp++;
+ }
+
+ for (i = 0; i < istop; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) +
+ ((int)(*pp++ + *lp++) >> 1)) & 0xff);
+ rp++;
+ }
+ }
+ break;
+ }
+
+ case PNG_FILTER_VALUE_PAETH:
+ {
+ if ((png_ptr->asm_flags & PNG_ASM_FLAG_MMX_READ_FILTER_PAETH) &&
+ (row_info->pixel_depth >= png_ptr->mmx_bitdepth_threshold) &&
+ (row_info->rowbytes >= png_ptr->mmx_rowbytes_threshold))
+ {
+ png_read_filter_row_mmx_paeth(row_info, row, prev_row);
+ }
+ else
+ {
+ png_uint_32 i;
+ png_bytep rp = row;
+ png_bytep pp = prev_row;
+ png_bytep lp = row;
+ png_bytep cp = prev_row;
+ png_uint_32 bpp = (row_info->pixel_depth + 7) >> 3;
+ png_uint_32 istop=row_info->rowbytes - bpp;
+
+ for (i = 0; i < bpp; i++)
+ {
+ *rp = (png_byte)(((int)(*rp) + (int)(*pp++)) & 0xff);
+ rp++;
+ }
+
+ for (i = 0; i < istop; i++) // use leftover rp,pp
+ {
+ int a, b, c, pa, pb, pc, p;
+
+ a = *lp++;
+ b = *pp++;
+ c = *cp++;
+
+ p = b - c;
+ pc = a - c;
+
+#ifdef PNG_USE_ABS
+ pa = abs(p);
+ pb = abs(pc);
+ pc = abs(p + pc);
+#else
+ pa = p < 0 ? -p : p;
+ pb = pc < 0 ? -pc : pc;
+ pc = (p + pc) < 0 ? -(p + pc) : p + pc;
+#endif
+
+ /*
+ if (pa <= pb && pa <= pc)
+ p = a;
+ else if (pb <= pc)
+ p = b;
+ else
+ p = c;
+ */
+
+ p = (pa <= pb && pa <=pc) ? a : (pb <= pc) ? b : c;
+
+ *rp = (png_byte)(((int)(*rp) + p) & 0xff);
+ rp++;
+ }
+ }
+ break;
+ }
+
+ default:
+ png_warning(png_ptr, "Ignoring bad row filter type");
+ *row=0;
+ break;
+ }
+}
+
+#endif /* PNG_ASSEMBLER_CODE_SUPPORTED && PNG_USE_PNGVCRD */
--- /dev/null
+This project builds a shared library version of libpng on x86 BeOS.
+
+It defines PNG_USE_PNGGCCRD, which activates the assembly code in
+pnggccrd.c; this hasn't been extensively tested on BeOS.
+
+To install:
+
+1) build
+
+ Note: As of version 1.0.10, you'll get a fair number of warnings when
+ you compile pnggccrd.c. As far as I know, these are harmless,
+ but it would be better if someone fixed them.
+
+2) copy and png.h, pngconf.h somewhere; /boot/home/config/include (which
+ you'll have to make) is a good choice
+
+3) copy libpng.so to /boot/home/config/lib
+
+4) build your libpng.so applications (remember to include libz.a as
+ well when you link)
+
+- Chris Herborth, March 27, 2001
--- /dev/null
+This project builds a static library version of libpng on x86 BeOS.
+
+It defines PNG_USE_PNGGCCRD, which activates the assembly code in
+pnggccrd.c; this hasn't been extensively tested on BeOS.
+
+To install:
+
+1) build
+
+ Note: As of version 1.0.10, you'll get a fair number of warnings when
+ you compile pnggccrd.c. As far as I know, these are harmless,
+ but it would be better if someone fixed them.
+
+2) copy and png.h, pngconf.h somewhere; /boot/home/config/include (which
+ you'll have to make) is a good choice
+
+3) copy libpng.a to /boot/home/config/lib
+
+4) build your libpng.a applications (remember to include libz.a as
+ well when you link)
+
+- Chris Herborth, March 27, 2001
--- /dev/null
+USEUNIT("libpng.cpp");
+USEUNIT("..\..\pngwutil.c");
+USEUNIT("..\..\pngerror.c");
+USEUNIT("..\..\pngget.c");
+USEUNIT("..\..\pngmem.c");
+USEUNIT("..\..\pngpread.c");
+USEUNIT("..\..\pngread.c");
+USEUNIT("..\..\pngrio.c");
+USEUNIT("..\..\pngrtran.c");
+USEUNIT("..\..\pngrutil.c");
+USEUNIT("..\..\pngset.c");
+USEUNIT("..\..\pngtrans.c");
+USEUNIT("..\..\pngwio.c");
+USEUNIT("..\..\pngwrite.c");
+USEUNIT("..\..\pngwtran.c");
+USEUNIT("..\..\png.c");
+USELIB("zlib.lib");
+//---------------------------------------------------------------------------
+This file is used by the project manager only and should be treated like the project file
+
+
+DllEntryPoint
\ No newline at end of file
--- /dev/null
+#------------------------------------------------------------------------------
+VERSION = BWS.01
+#------------------------------------------------------------------------------
+!ifndef ROOT
+ROOT = $(MAKEDIR)\..
+!endif
+#------------------------------------------------------------------------------
+MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
+DCC = $(ROOT)\bin\dcc32.exe $**
+BRCC = $(ROOT)\bin\brcc32.exe $**
+#------------------------------------------------------------------------------
+PROJECTS = libpngstat.lib libpng.dll
+#------------------------------------------------------------------------------
+default: $(PROJECTS)
+#------------------------------------------------------------------------------
+
+libpngstat.lib: libpngstat.bpr
+ $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+libpng.dll: libpng.bpr
+ $(ROOT)\bin\bpr2mak $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+
--- /dev/null
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+ <MACROS>
+ <VERSION value="BCB.05.03"/>
+ <PROJECT value="libpng.dll"/>
+ <OBJFILES value="libpng.obj ..\..\pngwutil.obj ..\..\pngerror.obj ..\..\pngget.obj
+ ..\..\pngmem.obj ..\..\pngpread.obj ..\..\pngread.obj ..\..\pngrio.obj
+ ..\..\pngrtran.obj ..\..\pngrutil.obj ..\..\pngset.obj ..\..\pngtrans.obj
+ ..\..\pngwio.obj ..\..\pngwrite.obj ..\..\pngwtran.obj ..\..\png.obj"/>
+ <RESFILES value=""/>
+ <DEFFILE value=""/>
+ <RESDEPEN value="$(RESFILES)"/>
+ <LIBFILES value="zlib.lib"/>
+ <LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
+ <SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
+ <PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi
+ ibsmp50.bpi vcldbx50.bpi TeeUI50.bpi TeeDB50.bpi Tee50.bpi TeeQR50.bpi
+ VCLIB50.bpi bcbie50.bpi vclie50.bpi Inetdb50.bpi Inet50.bpi NMFast50.bpi
+ dclocx50.bpi bcb97axserver50.bpi SIMULUSCOMPONENTS.bpi Simulus2.bpi"/>
+ <PATHCPP value=".;..\.."/>
+ <PATHPAS value=".;"/>
+ <PATHRC value=".;"/>
+ <PATHASM value=".;"/>
+ <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
+ <RELEASELIBPATH value="$(BCB)\lib\release"/>
+ <LINKER value="tlink32"/>
+ <USERDEFINES value="ZLIB_DLL;Z_PREFIX;PNG_BUILD_DLL;PNG_NO_MODULEDEF"/>
+ <SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL"/>
+ <MAINSOURCE value="libpng.bpf"/>
+ <INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>
+ <LIBPATH value="..\..;$(BCB)\lib\obj;$(BCB)\lib"/>
+ <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wucp -wstv -wstu -wsig -wpin
+ -wnod -wnak -wdef -wcln -wbbf -wasm -wamp -wamb"/>
+ </MACROS>
+ <OPTIONS>
+ <CFLAG1 value="-WD -O2 -w -Vx -Ve -x- -RT- -X- -a8 -5 -b- -d -k- -vi -tWD -tWM -c"/>
+ <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+ <RFLAGS value=""/>
+ <AFLAGS value="/mx /w2 /zn"/>
+ <LFLAGS value="-D"" -aa -Tpd -x -Gn -Gi -w"/>
+ </OPTIONS>
+ <LINKER>
+ <ALLOBJ value="c0d32.obj $(OBJFILES)"/>
+ <ALLRES value="$(RESFILES)"/>
+ <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mti.lib"/>
+ </LINKER>
+ <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
+MinorVer=0
+Release=0
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=1
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=1.0.0.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=
+Comments=
+
+[HistoryLists\hlIncludePath]
+Count=18
+Item0=..\..;..\..\..\zlib;$(BCB)\include
+Item1=..\..;P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
+Item2=..\..;..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
+Item3=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression\external;$(BCB)\include
+Item4=..\Source\ThirdParty\PortableNetworkGraphics\external;..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item5=..\Source\ThirdParty\PortableNetworkGraphics;..\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item6=..\Source\ThirdParty\PortableNetworkGraphics;P:\Development\Source\ThirdParty\ZLibCompression;$(BCB)\include
+Item7=..\Source\ThirdParty\PortableNetworkGraphics;$(BCB)\include
+Item8=$(BCB)\include
+Item9=..\Source;..\Source\General\Templates;..\Source\SIMUtilities;$(BCB)\include;$(BCB)\include\vcl
+Item10=P:\Development\Source\;P:\Development\Source\General\Templates\;P:\Development\Source\SIMUtilities\;$(BCB)\include;$(BCB)\include\vcl
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+
+[HistoryLists\hlDebugSourcePath]
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+
+[HistoryLists\hlConditionals]
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+
+[HistoryLists\hlIntOutputDir]
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+Item0=..\Obj
+Item1=P:\Development\Obj
+
+[Debugging]
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+
+[Parameters]
+RunParams=
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+RemoteHost=
+RemotePath=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+ </IDEOPTIONS>
+</PROJECT>
\ No newline at end of file
--- /dev/null
+//---------------------------------------------------------------------------
+#include <windows.h>
+//---------------------------------------------------------------------------
+// Important note about DLL memory management when your DLL uses the
+// static version of the RunTime Library:
+//
+// If your DLL exports any functions that pass String objects (or structs/
+// classes containing nested Strings) as parameter or function results,
+// you will need to add the library MEMMGR.LIB to both the DLL project and
+// any other projects that use the DLL. You will also need to use MEMMGR.LIB
+// if any other projects which use the DLL will be performing new or delete
+// operations on any non-TObject-derived classes which are exported from the
+// DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
+// EXE's to use the BORLNDMM.DLL as their memory manager. In these cases,
+// the file BORLNDMM.DLL should be deployed along with your DLL.
+//
+// To avoid using BORLNDMM.DLL, pass string information using "char *" or
+// ShortString parameters.
+//
+// If your DLL uses the dynamic version of the RTL, you do not need to
+// explicitly add MEMMGR.LIB as this will be done implicitly for you
+//---------------------------------------------------------------------------
+
+int WINAPI DllEntryPoint(HINSTANCE, unsigned long, void*)
+{
+ return 1;
+}
+//---------------------------------------------------------------------------
+
\ No newline at end of file
--- /dev/null
+Project files to build libpng using Borland C++ Builder v5.0
+
+To use this dll, you will need to:
+
+1) add the following conditional defines to your project
+
+PNG_USE_DLL
+Z_PREFIX
+
+2) add the paths to png.h and zlib.h to your include path
+
+3) add libpng.lib or libpngstat.lib to the project.
+
+If you are using libpng.dll, libpng.dll and zlib.dll will be required for the code to run.
+
+Alternatively, the libpng.dll can be built using zlibstat.lib to produce one dll containing both the zlib and png code.
+
+See the libpng documentation for instructions on how to use the code.
+
--- /dev/null
+USELIB("zlibstat.lib");
+USEUNIT("..\..\pngerror.c");
+USEUNIT("..\..\png.c");
+USEUNIT("..\..\pngwutil.c");
+USEUNIT("..\..\pngmem.c");
+USEUNIT("..\..\pngpread.c");
+USEUNIT("..\..\pngread.c");
+USEUNIT("..\..\pngrio.c");
+USEUNIT("..\..\pngrtran.c");
+USEUNIT("..\..\pngrutil.c");
+USEUNIT("..\..\pngset.c");
+USEUNIT("..\..\pngtrans.c");
+USEUNIT("..\..\pngwio.c");
+USEUNIT("..\..\pngwrite.c");
+USEUNIT("..\..\pngwtran.c");
+USEUNIT("..\..\pngget.c");
+//---------------------------------------------------------------------------
+#define Library
+
+// To add a file to the library use the Project menu 'Add to Project'.
+
+
\ No newline at end of file
--- /dev/null
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+ <MACROS>
+ <VERSION value="BCB.05.03"/>
+ <PROJECT value="libpngstat.lib"/>
+ <OBJFILES value="..\..\pngerror.obj ..\..\png.obj ..\..\pngwutil.obj ..\..\pngmem.obj
+ ..\..\pngpread.obj ..\..\pngread.obj ..\..\pngrio.obj ..\..\pngrtran.obj
+ ..\..\pngrutil.obj ..\..\pngset.obj ..\..\pngtrans.obj ..\..\pngwio.obj
+ ..\..\pngwrite.obj ..\..\pngwtran.obj ..\..\pngget.obj"/>
+ <RESFILES value=""/>
+ <DEFFILE value=""/>
+ <RESDEPEN value="$(RESFILES)"/>
+ <LIBFILES value="zlibstat.lib"/>
+ <LIBRARIES value=""/>
+ <PACKAGES value=""/>
+ <PATHCPP value=".;..\.."/>
+ <PATHPAS value=".;"/>
+ <PATHRC value=".;"/>
+ <PATHASM value=".;"/>
+ <LINKER value="TLib"/>
+ <USERDEFINES value=""/>
+ <SYSDEFINES value="_RTLDLL;NO_STRICT"/>
+ <MAINSOURCE value="libpngstat.bpf"/>
+ <INCLUDEPATH value="..\..;..\..\..\zlib;$(BCB)\include"/>
+ <LIBPATH value="..\..;$(BCB)\lib\obj;$(BCB)\lib"/>
+ <WARNINGS value="-w-par"/>
+ <LISTFILE value=""/>
+ </MACROS>
+ <OPTIONS>
+ <CFLAG1 value="-O2 -w -Vx -Ve -X- -a8 -5 -b- -d -k- -vi -c -tW -tWM"/>
+ <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+ <AFLAGS value="/mx /w2 /zn"/>
+ <LFLAGS value=""/>
+ </OPTIONS>
+ <LINKER>
+ <ALLOBJ value="$(OBJFILES)"/>
+ <ALLLIB value=""/>
+ </LINKER>
+ <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
+MinorVer=0
+Release=0
+Build=0
+Debug=0
+PreRelease=0
+Special=0
+Private=0
+DLL=0
+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
+CompanyName=
+FileDescription=
+FileVersion=1.0.0.0
+InternalName=
+LegalCopyright=
+LegalTrademarks=
+OriginalFilename=
+ProductName=
+ProductVersion=1.0.0.0
+Comments=
+
+[HistoryLists\hlIncludePath]
+Count=2
+Item0=..\..;P:\My Documents\Source\PNG+ZLib\zlib;$(BCB)\include
+Item1=..\..;$(BCB)\include;$(BCB)\include\vcl
+
+[HistoryLists\hlLibraryPath]
+Count=1
+Item0=..\..;$(BCB)\lib\obj;$(BCB)\lib
+
+[HistoryLists\hlDebugSourcePath]
+Count=1
+Item0=$(BCB)\source\vcl
+
+[HistoryLists\hlConditionals]
+Count=1
+Item0=_DEBUG
+
+[HistoryLists\hlTlibPageSize]
+Count=1
+Item0=0x0010
+
+[Debugging]
+DebugSourceDirs=$(BCB)\source\vcl
+
+[Parameters]
+RunParams=
+HostApplication=
+RemoteHost=
+RemotePath=
+RemoteDebug=0
+
+[Compiler]
+ShowInfoMsgs=0
+LinkDebugVcl=0
+LinkCGLIB=0
+
+[Language]
+ActiveLang=
+ProjectLang=
+RootDir=
+ </IDEOPTIONS>
+</PROJECT>
\ No newline at end of file
--- /dev/null
+#------------------------------------------------------------------------------
+VERSION = BWS.01
+#------------------------------------------------------------------------------
+!ifndef ROOT
+ROOT = $(MAKEDIR)\..
+!endif
+#------------------------------------------------------------------------------
+MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
+DCC = $(ROOT)\bin\dcc32.exe $**
+BRCC = $(ROOT)\bin\brcc32.exe $**
+#------------------------------------------------------------------------------
+PROJECTS = zlibstat.lib libpngstat.lib zlib.dll libpng.dll
+#------------------------------------------------------------------------------
+default: $(PROJECTS)
+#------------------------------------------------------------------------------
+
+libpng.dll: libpng.bpr
+ $(ROOT)\bin\bpr2mak $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+zlibstat.lib: zlibstat.bpr
+ $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+zlib.dll: zlib.bpr
+ $(ROOT)\bin\bpr2mak $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+libpngstat.lib: libpngstat.bpr
+ $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+
--- /dev/null
+USEUNIT("zlib.cpp");
+USEUNIT("..\..\..\zlib\zutil.c");
+USEUNIT("..\..\..\zlib\compress.c");
+USEUNIT("..\..\..\zlib\crc32.c");
+USEUNIT("..\..\..\zlib\deflate.c");
+USEUNIT("..\..\..\zlib\gzio.c");
+USEUNIT("..\..\..\zlib\infblock.c");
+USEUNIT("..\..\..\zlib\infcodes.c");
+USEUNIT("..\..\..\zlib\inffast.c");
+USEUNIT("..\..\..\zlib\inflate.c");
+USEUNIT("..\..\..\zlib\inftrees.c");
+USEUNIT("..\..\..\zlib\infutil.c");
+USEUNIT("..\..\..\zlib\trees.c");
+USEUNIT("..\..\..\zlib\uncompr.c");
+USEUNIT("..\..\..\zlib\adler32.c");
+//---------------------------------------------------------------------------
+This file is used by the project manager only and should be treated like the project file
+
+
+DllEntryPoint
\ No newline at end of file
--- /dev/null
+#------------------------------------------------------------------------------
+VERSION = BWS.01
+#------------------------------------------------------------------------------
+!ifndef ROOT
+ROOT = $(MAKEDIR)\..
+!endif
+#------------------------------------------------------------------------------
+MAKE = $(ROOT)\bin\make.exe -$(MAKEFLAGS) -f$**
+DCC = $(ROOT)\bin\dcc32.exe $**
+BRCC = $(ROOT)\bin\brcc32.exe $**
+#------------------------------------------------------------------------------
+PROJECTS = zlibstat.lib zlib.dll
+#------------------------------------------------------------------------------
+default: $(PROJECTS)
+#------------------------------------------------------------------------------
+
+zlibstat.lib: zlibstat.bpr
+ $(ROOT)\bin\bpr2mak -t$(ROOT)\bin\deflib.bmk $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+zlib.dll: zlib.bpr
+ $(ROOT)\bin\bpr2mak $**
+ $(ROOT)\bin\make -$(MAKEFLAGS) -f$*.mak
+
+
--- /dev/null
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+ <MACROS>
+ <VERSION value="BCB.05.03"/>
+ <PROJECT value="zlib.dll"/>
+ <OBJFILES value="zlib.obj ..\..\..\zlib\zutil.obj ..\..\..\zlib\compress.obj
+ ..\..\..\zlib\crc32.obj ..\..\..\zlib\deflate.obj ..\..\..\zlib\gzio.obj
+ ..\..\..\zlib\infblock.obj ..\..\..\zlib\infcodes.obj
+ ..\..\..\zlib\inffast.obj ..\..\..\zlib\inflate.obj
+ ..\..\..\zlib\inftrees.obj ..\..\..\zlib\infutil.obj
+ ..\..\..\zlib\trees.obj ..\..\..\zlib\uncompr.obj ..\..\..\zlib\adler32.obj"/>
+ <RESFILES value=""/>
+ <DEFFILE value=""/>
+ <RESDEPEN value="$(RESFILES)"/>
+ <LIBFILES value=""/>
+ <LIBRARIES value="bcbsmp50.lib dclocx50.lib NMFast50.lib Tee50.lib Vclx50.lib Vcl50.lib"/>
+ <SPARELIBS value="Vcl50.lib Vclx50.lib Tee50.lib NMFast50.lib dclocx50.lib bcbsmp50.lib"/>
+ <PACKAGES value="Vcl50.bpi Vclx50.bpi bcbsmp50.bpi Qrpt50.bpi Vcldb50.bpi Vclbde50.bpi
+ ibsmp50.bpi vcldbx50.bpi TeeUI50.bpi TeeDB50.bpi Tee50.bpi TeeQR50.bpi
+ VCLIB50.bpi bcbie50.bpi vclie50.bpi Inetdb50.bpi Inet50.bpi NMFast50.bpi
+ dclocx50.bpi bcb97axserver50.bpi SIMULUSCOMPONENTS.bpi Simulus2.bpi"/>
+ <PATHCPP value=".;..\..\..\zlib"/>
+ <PATHPAS value=".;"/>
+ <PATHRC value=".;"/>
+ <PATHASM value=".;"/>
+ <DEBUGLIBPATH value="$(BCB)\lib\debug"/>
+ <RELEASELIBPATH value="$(BCB)\lib\release"/>
+ <LINKER value="tlink32"/>
+ <USERDEFINES value="ZLIB_DLL;Z_PREFIX"/>
+ <SYSDEFINES value="NO_STRICT;_NO_VCL;_RTLDLL"/>
+ <MAINSOURCE value="zlib.bpf"/>
+ <INCLUDEPATH value="..\..\..\zlib;$(BCB)\include"/>
+ <LIBPATH value="..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib"/>
+ <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wuse -wucp -wstv -wstu -wpin
+ -w-par -wnod -wnak -wdef -wcln -wbbf -w-aus -wasm -wamp -wamb"/>
+ </MACROS>
+ <OPTIONS>
+ <CFLAG1 value="-WD -O2 -w -Vx -Ve -x- -RT- -ff -X- -a8 -5 -b- -d -k- -vi -tWD -tWM -c"/>
+ <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+ <RFLAGS value=""/>
+ <AFLAGS value="/mx /w2 /zn"/>
+ <LFLAGS value="-D"" -aa -Tpd -x -Gn -Gi -w"/>
+ </OPTIONS>
+ <LINKER>
+ <ALLOBJ value="c0d32.obj $(OBJFILES)"/>
+ <ALLRES value="$(RESFILES)"/>
+ <ALLLIB value="$(LIBFILES) $(LIBRARIES) import32.lib cw32mti.lib"/>
+ </LINKER>
+ <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
+MajorVer=1
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+Release=0
+Build=0
+Debug=0
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+Special=0
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+Locale=2057
+CodePage=1252
+
+[Version Info Keys]
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+[HistoryLists\hlIncludePath]
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+[HistoryLists\hlLibraryPath]
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+
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+ </IDEOPTIONS>
+</PROJECT>
\ No newline at end of file
--- /dev/null
+//---------------------------------------------------------------------------
+
+#include <windows.h>
+//---------------------------------------------------------------------------
+// Important note about DLL memory management when your DLL uses the
+// static version of the RunTime Library:
+//
+// If your DLL exports any functions that pass String objects (or structs/
+// classes containing nested Strings) as parameter or function results,
+// you will need to add the library MEMMGR.LIB to both the DLL project and
+// any other projects that use the DLL. You will also need to use MEMMGR.LIB
+// if any other projects which use the DLL will be performing new or delete
+// operations on any non-TObject-derived classes which are exported from the
+// DLL. Adding MEMMGR.LIB to your project will change the DLL and its calling
+// EXE's to use the BORLNDMM.DLL as their memory manager. In these cases,
+// the file BORLNDMM.DLL should be deployed along with your DLL.
+//
+// To avoid using BORLNDMM.DLL, pass string information using "char *" or
+// ShortString parameters.
+//
+// If your DLL uses the dynamic version of the RTL, you do not need to
+// explicitly add MEMMGR.LIB as this will be done implicitly for you
+//---------------------------------------------------------------------------
+
+int WINAPI DllEntryPoint(HINSTANCE, unsigned long, void*)
+{
+ return 1;
+}
+//---------------------------------------------------------------------------
+
\ No newline at end of file
--- /dev/null
+USEUNIT("..\..\..\zlib\zutil.c");
+USEUNIT("..\..\..\zlib\compress.c");
+USEUNIT("..\..\..\zlib\crc32.c");
+USEUNIT("..\..\..\zlib\deflate.c");
+USEUNIT("..\..\..\zlib\gzio.c");
+USEUNIT("..\..\..\zlib\infblock.c");
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+USEUNIT("..\..\..\zlib\inffast.c");
+USEUNIT("..\..\..\zlib\inflate.c");
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+USEUNIT("..\..\..\zlib\trees.c");
+USEUNIT("..\..\..\zlib\uncompr.c");
+USEUNIT("..\..\..\zlib\adler32.c");
+//---------------------------------------------------------------------------
+#define Library
+
+// To add a file to the library use the Project menu 'Add to Project'.
+
+
\ No newline at end of file
--- /dev/null
+<?xml version='1.0' encoding='utf-8' ?>
+<!-- C++Builder XML Project -->
+<PROJECT>
+ <MACROS>
+ <VERSION value="BCB.05.03"/>
+ <PROJECT value="zlibstat.lib"/>
+ <OBJFILES value="..\..\..\zlib\zutil.obj ..\..\..\zlib\compress.obj ..\..\..\zlib\crc32.obj
+ ..\..\..\zlib\deflate.obj ..\..\..\zlib\gzio.obj
+ ..\..\..\zlib\infblock.obj ..\..\..\zlib\infcodes.obj
+ ..\..\..\zlib\inffast.obj ..\..\..\zlib\inflate.obj
+ ..\..\..\zlib\inftrees.obj ..\..\..\zlib\infutil.obj
+ ..\..\..\zlib\trees.obj ..\..\..\zlib\uncompr.obj ..\..\..\zlib\adler32.obj"/>
+ <RESFILES value=""/>
+ <DEFFILE value=""/>
+ <RESDEPEN value="$(RESFILES)"/>
+ <LIBFILES value=""/>
+ <LIBRARIES value=""/>
+ <PACKAGES value=""/>
+ <PATHCPP value=".;..\..\..\zlib"/>
+ <PATHPAS value=".;"/>
+ <PATHRC value=".;"/>
+ <PATHASM value=".;"/>
+ <LINKER value="TLib"/>
+ <USERDEFINES value="Z_PREFIX"/>
+ <SYSDEFINES value="_RTLDLL;NO_STRICT"/>
+ <MAINSOURCE value="zlibstat.bpf"/>
+ <INCLUDEPATH value="..\..\..\zlib;$(BCB)\include"/>
+ <LIBPATH value="..\..\..\zlib;$(BCB)\lib\obj;$(BCB)\lib"/>
+ <WARNINGS value="-w8092 -w8091 -w8090 -w8089 -w8087 -wprc -wuse -wucp -wstv -wstu -wpin
+ -wnod -wnak -wdef -wcln -wbbf -w-aus -wasm -wamp -wamb"/>
+ <LISTFILE value=""/>
+ </MACROS>
+ <OPTIONS>
+ <CFLAG1 value="-O2 -w -Vx -Ve -x- -RT- -X- -a8 -5 -b- -d -k- -vi -c -tW -tWM"/>
+ <PFLAGS value="-$Y- -$L- -$D- -$C- -v -JPHNE -M"/>
+ <AFLAGS value="/mx /w2 /zn"/>
+ <LFLAGS value=""/>
+ </OPTIONS>
+ <LINKER>
+ <ALLOBJ value="$(OBJFILES)"/>
+ <ALLLIB value=""/>
+ </LINKER>
+ <IDEOPTIONS>
+[Version Info]
+IncludeVerInfo=0
+AutoIncBuild=0
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\ No newline at end of file
--- /dev/null
+Microsoft Developer Studio Build File, Format Version 6.00 for
+libpng 1.2.4 (July 8, 2002) and zlib
+
+Copyright (C) 2000 Simon-Pierre Cadieux
+For conditions of distribution and use, see copyright notice in png.h
+
+Assumes that libpng sources are in ..\..
+Assumes that zlib sources have been copied to ..\..\..\zlib
+
+To build:
+
+0) On the main menu, select "File | Open Workspace" and then
+ select "libpng.dsw".
+
+1) On the main menu Select "Build | Set Active configuration".
+ Among the configurations beginning with "libpng" select the
+ one you wish to build (the corresponding "zlib" configuration
+ will be built automatically).
+
+2) Select "Build | Clean"
+
+3) Select "Build | Rebuild All". Ignore warning messages about
+ not being able to find certain include files (e.g., m68881.h,
+ alloc.h).
+
+4) Look in the appropriate "win32" subdirectories for both "zlib"
+ and "libpng" binaries.
+
+This project will build the PNG Development Group's "official" versions of
+libpng and zlib libraries:
+
+ libpng13.dll (default version, currently C code only)
+ libpng13a.dll (C + Assembler version)
+ libpng13b.dll (C + Assembler debug version)
+ libpng13d.dll (C code debug version)
+ libpng13vb.dll (version for VB, uses "stdcall" protocol)
+ libpng13[c,e-m].dll (reserved for official versions)
+ libpng13[n-z].dll (available for private versions)
+ zlib.dll (default version, currently C code only)
+ zlibd.dll (debug version)
+ zlibvb.dll (version for Visual Basic, uses "stdcall" protocol)
+
+If you change anything in libpng, or select different compiler settings,
+please change the library name to an unreserved name, and define
+DLLFNAME_POSTFIX and (PRIVATEBUILD or SPECIALBUILD) accordingly. DLLFNAME_POSTFIX
+should correspond to a string in the range of "N" to "Z" depending on the letter
+you choose for your private version.
+
+All DLLs built by this project use the Microsoft dynamic C runtime library
+MSVCRT.DLL (MSVCRTD.DLL for debug versions). If you distribute any of the
+above mentioned libraries you should also include this DLL in your package.
+For a list of files that are redistributable in Visual C++ 6.0, see
+Common\Redist\Redist.txt on Disc 1 of the Visual C++ 6.0 product CDs.
+
+5) For an example workspace that builds an application using the resulting
+ DLLs, go to Libpng's contrib\msvctest directory and use it to build
+ and run "pngtest".
--- /dev/null
+# Microsoft Developer Studio Project File - Name="libpng" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
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+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=libpng - Win32 DLL
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE
+!MESSAGE NMAKE /f "libpng.mak".
+!MESSAGE
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE
+!MESSAGE NMAKE /f "libpng.mak" CFG="libpng - Win32 DLL"
+!MESSAGE
+!MESSAGE Possible choices for configuration are:
+!MESSAGE
+!MESSAGE "libpng - Win32 DLL" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "libpng - Win32 DLL Debug" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "libpng - Win32 DLL ASM" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "libpng - Win32 DLL Debug ASM" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "libpng - Win32 LIB" (based on "Win32 (x86) Static Library")
+!MESSAGE "libpng - Win32 LIB Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE "libpng - Win32 DLL VB" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+
+!IF "$(CFG)" == "libpng - Win32 DLL"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "Release"
+# PROP BASE Intermediate_Dir "Release"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
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+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug"
+
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+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL ASM"
+
+# PROP BASE Use_MFC 0
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+RSC=rc.exe
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+# SUBTRACT LINK32 /pdb:none
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug ASM"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
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+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
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+# ADD BASE CPP /nologo /MDd /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /GZ /c
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+RSC=rc.exe
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+# ADD BASE BSC32 /nologo
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+# ADD LINK32 /nologo /dll /debug /machine:I386 /out:".\win32\libpng\dll_dbga\libpng13b.dll"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
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+# PROP BASE Intermediate_Dir "Release"
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+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
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+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
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+# PROP BASE Intermediate_Dir "Debug"
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+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 1
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+# ADD BASE CPP /nologo /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_LIB" /FD /GZ /c
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+# ADD RSC /l 0x409 /d "_DEBUG"
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+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
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+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL VB"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "libpng___Win32_DLL_VB"
+# PROP BASE Intermediate_Dir "libpng___Win32_DLL_VB"
+# PROP BASE Ignore_Export_Lib 0
+# PROP BASE Target_Dir ""
+# PROP Use_MFC 0
+# PROP Use_Debug_Libraries 0
+# PROP Output_Dir ".\win32\libpng\dll_vb"
+# PROP Intermediate_Dir ".\win32\libpng\dll_vb"
+# PROP Ignore_Export_Lib 0
+# PROP Target_Dir ""
+CPP=cl.exe
+# ADD BASE CPP /nologo /MD /W3 /O1 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /Yu"png.h" /FD /c
+# ADD CPP /nologo /Gd /MD /W3 /O1 /I "..\.." /I "..\..\..\zlib" /D "NDEBUG" /D "WIN32" /D "_WINDOWS" /D "PNG_BUILD_DLL" /D "ZLIB_DLL" /D PNGAPI=__stdcall /Yu"png.h" /FD /c
+MTL=midl.exe
+RSC=rc.exe
+# ADD BASE RSC /l 0x409 /i "..\.." /d "NDEBUG"
+# ADD RSC /l 0x409 /i "..\.." /d "NDEBUG"
+BSC32=bscmake.exe
+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 /nologo /dll /machine:I386 /out:".\win32\libpng\dll\libpng13.dll"
+# SUBTRACT BASE LINK32 /pdb:none
+# ADD LINK32 /nologo /dll /machine:I386 /out:".\win32\libpng\dll_vb\libpngvb13.dll"
+# SUBTRACT LINK32 /pdb:none
+
+!ENDIF
+
+# Begin Target
+
+# Name "libpng - Win32 DLL"
+# Name "libpng - Win32 DLL Debug"
+# Name "libpng - Win32 DLL ASM"
+# Name "libpng - Win32 DLL Debug ASM"
+# Name "libpng - Win32 LIB"
+# Name "libpng - Win32 LIB Debug"
+# Name "libpng - Win32 DLL VB"
+# Begin Group "Source Files"
+
+# PROP Default_Filter "cpp;c;cxx;rc;def;r;odl;idl;hpj;bat"
+# Begin Source File
+
+SOURCE=..\..\png.c
+# SUBTRACT CPP /YX /Yc /Yu
+# End Source File
+# Begin Source File
+
+SOURCE=.\png.rc
+
+!IF "$(CFG)" == "libpng - Win32 DLL"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL ASM"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug ASM"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL VB"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=.\png32ms.def
+
+!IF "$(CFG)" == "libpng - Win32 DLL"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL ASM"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug ASM"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL VB"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngerror.c
+# ADD CPP /Yc"png.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngget.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngmem.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngpread.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngread.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngrio.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngrtran.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngrutil.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngset.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngtrans.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngvcrd.c
+
+!IF "$(CFG)" == "libpng - Win32 DLL"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL ASM"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug ASM"
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB"
+
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+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL VB"
+
+# PROP BASE Exclude_From_Build 1
+# PROP Exclude_From_Build 1
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngwio.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngwrite.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngwtran.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngwutil.c
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=..\..\png.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\pngconf.h
+# End Source File
+# End Group
+# Begin Group "Resource Files"
+
+# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+# End Group
+# Begin Source File
+
+SOURCE=.\readme.txt
+
+!IF "$(CFG)" == "libpng - Win32 DLL"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL ASM"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL Debug ASM"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "libpng - Win32 DLL VB"
+
+# PROP BASE Exclude_From_Build 1
+# PROP Exclude_From_Build 1
+
+!ENDIF
+
+# End Source File
+# End Target
+# End Project
--- /dev/null
+#define PNG_VERSION_INFO_ONLY
+
+#include <windows.h>
+#include "png.h"
+
+#define _QUOTE(x) # x
+#define QUOTE(x) _QUOTE(x)
+
+#define PNG_LIBPNG_DLLFNAME "LIBPNG"
+
+#if defined(DLLFNAME_POSTFIX) && !defined(PRIVATEBUILD) && !defined(SPECIALBUILD)
+# error PRIVATEBUILD or SPECIALBUILD must be defined as a string describing the type of change brought to the standard library
+#endif /* defined(DLLFNAME_POSTFIX)... */
+
+#if !defined(DLLFNAME_POSTFIX) && defined(PNG_USE_PNGVCRD)
+# if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
+# define DLLFNAME_POSTFIX "B"
+# else
+# define DLLFNAME_POSTFIX "A"
+# endif /* !defined(DLLFNAME_POSTFIX)... */
+# if !defined(SPECIALBUILD)
+# define SPECIALBUILD "Use MMX instructions"
+# endif /* SPECIALBUILD */
+#endif
+
+#if defined(PNG_DEBUG) && (PNG_DEBUG > 0)
+# define VS_DEBUG VS_FF_DEBUG
+# ifndef DLLFNAME_POSTFIX
+# define DLLFNAME_POSTFIX "D"
+# endif /* DLLFNAME_POSTFIX */
+# ifndef COMMENTS
+# define COMMENTS "PNG_DEBUG=" QUOTE(PNG_DEBUG)
+# endif /* COMMENTS */
+#else
+# define VS_DEBUG 0
+# ifndef DLLFNAME_POSTFIX
+# define DLLFNAME_POSTFIX
+# endif /* DLLFNAME_POSTFIX */
+#endif /* defined(DEBUG)... */
+
+#ifdef PRIVATEBUILD
+# define VS_PRIVATEBUILD VS_FF_PRIVATEBUILD
+#else
+# define VS_PRIVATEBUILD 0
+#endif /* PRIVATEBUILD */
+
+#ifdef SPECIALBUILD
+# define VS_SPECIALBUILD VS_FF_SPECIALBUILD
+#else
+# define VS_SPECIALBUILD 0
+#endif /* SPECIALBUILD */
+
+#if ((PNG_LIBPNG_BUILD_TYPE & PNG_LIBPNG_BUILD_TYPEMASK) != \
+ PNG_LIBPNG_BUILD_STABLE)
+# define VS_PRERELEASE VS_FF_PRERELEASE
+# define VS_PATCHED 0
+#else
+# define VS_PRERELEASE 0
+# if (PNG_LIBPNG_BUILD_TYPE & PNG_LIBPNG_BUILD_PATCHED)
+# define VS_PATCHED VS_FF_PATCHED
+# else
+# define VS_PATCHED 0
+# endif
+#endif
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
+PRODUCTVERSION PNG_LIBPNG_VER_MAJOR, PNG_LIBPNG_VER_MINOR, PNG_LIBPNG_VER_RELEASE, PNG_LIBPNG_VER_BUILD
+FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
+FILEFLAGS VS_DEBUG | VS_PRIVATEBUILD | VS_SPECIALBUILD | VS_PRERELEASE | VS_PATCHED
+FILEOS VOS__WINDOWS32
+FILETYPE VFT_DLL
+FILESUBTYPE VFT2_UNKNOWN
+BEGIN
+ BLOCK "StringFileInfo"
+ BEGIN BLOCK "040904E4" /* Language type = U.S English(0x0409) and Character Set = Windows, Multilingual(0x04E4) */
+ BEGIN
+#ifdef COMMENTS
+ VALUE "Comments", COMMENTS "\000"
+#endif /* COMMENTS */
+ VALUE "FileDescription", "PNG image compression library\000"
+ VALUE "FileVersion", PNG_LIBPNG_VER_STRING "\000"
+ VALUE "InternalName", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_MAJOR) DLLFNAME_POSTFIX " (Windows 32 bit)\000"
+ VALUE "LegalCopyright", "\251 1998-2002 Glenn Randers-Pehrson\000"
+ VALUE "OriginalFilename", PNG_LIBPNG_DLLFNAME QUOTE(PNG_LIBPNG_VER_MAJOR) DLLFNAME_POSTFIX ".DLL\000"
+#ifdef PRIVATEBUILD
+ VALUE "PrivateBuild", PRIVATEBUILD
+#endif /* PRIVATEBUILD */
+ VALUE "ProductName", "LibPNG\000"
+ VALUE "ProductVersion", "1\000"
+#ifdef SPECIALBUILD
+ VALUE "SpecialBuild", SPECIALBUILD
+#endif /* SPECIALBUILD */
+ END
+ END
+ BLOCK "VarFileInfo"
+ BEGIN
+ VALUE "Translation", 0x0409, 0x04E4
+ END
+END
--- /dev/null
+;------------------------------------------
+; LIBPNG module definition file for Windows
+;------------------------------------------
+
+LIBRARY
+DESCRIPTION "PNG image compression library for Windows"
+
+EXPORTS
+;Version 1.2.4
+ png_build_grayscale_palette @1
+ png_check_sig @2
+ png_chunk_error @3
+ png_chunk_warning @4
+ png_convert_from_struct_tm @5
+ png_convert_from_time_t @6
+ png_create_info_struct @7
+ png_create_read_struct @8
+ png_create_write_struct @9
+ png_data_freer @10
+ png_destroy_info_struct @11
+ png_destroy_read_struct @12
+ png_destroy_write_struct @13
+ png_error @14
+ png_free @15
+ png_free_data @16
+ png_get_IHDR @17
+ png_get_PLTE @18
+ png_get_bKGD @19
+ png_get_bit_depth @20
+ png_get_cHRM @21
+ png_get_cHRM_fixed @22
+ png_get_channels @23
+ png_get_color_type @24
+ png_get_compression_buffer_size @25
+ png_get_compression_type @26
+ png_get_copyright @27
+ png_get_error_ptr @28
+ png_get_filter_type @29
+ png_get_gAMA @30
+ png_get_gAMA_fixed @31
+ png_get_hIST @32
+ png_get_header_ver @33
+ png_get_header_version @34
+ png_get_iCCP @35
+ png_get_image_height @36
+ png_get_image_width @37
+ png_get_interlace_type @38
+ png_get_io_ptr @39
+ png_get_libpng_ver @40
+ png_get_oFFs @41
+ png_get_pCAL @42
+ png_get_pHYs @43
+ png_get_pixel_aspect_ratio @44
+ png_get_pixels_per_meter @45
+ png_get_progressive_ptr @46
+ png_get_rgb_to_gray_status @47
+ png_get_rowbytes @48
+ png_get_rows @49
+ png_get_sBIT @50
+ png_get_sCAL @51
+ png_get_sPLT @52
+ png_get_sRGB @53
+ png_get_signature @54
+ png_get_tIME @55
+ png_get_tRNS @56
+ png_get_text @57
+ png_get_unknown_chunks @58
+ png_get_user_chunk_ptr @59
+ png_get_user_transform_ptr @60
+ png_get_valid @61
+ png_get_x_offset_microns @62
+ png_get_x_offset_pixels @63
+ png_get_x_pixels_per_meter @64
+ png_get_y_offset_microns @65
+ png_get_y_offset_pixels @66
+ png_get_y_pixels_per_meter @67
+ png_malloc @68
+ png_memcpy_check @69
+ png_memset_check @70
+; png_permit_empty_plte is deprecated
+ png_permit_empty_plte @71
+ png_process_data @72
+ png_progressive_combine_row @73
+ png_read_end @74
+ png_read_image @75
+ png_read_info @76
+; png_read_init is deprecated
+ png_read_init @77
+ png_read_png @78
+ png_read_row @79
+ png_read_rows @80
+ png_read_update_info @81
+ png_reset_zstream @82
+ png_set_IHDR @83
+ png_set_PLTE @84
+ png_set_bKGD @85
+ png_set_background @86
+ png_set_bgr @87
+ png_set_cHRM @88
+ png_set_cHRM_fixed @89
+ png_set_compression_buffer_size @90
+ png_set_compression_level @91
+ png_set_compression_mem_level @92
+ png_set_compression_method @93
+ png_set_compression_strategy @94
+ png_set_compression_window_bits @95
+ png_set_crc_action @96
+ png_set_dither @97
+ png_set_error_fn @98
+ png_set_expand @99
+ png_set_filler @100
+ png_set_filter @101
+ png_set_filter_heuristics @102
+ png_set_flush @103
+ png_set_gAMA @104
+ png_set_gAMA_fixed @105
+ png_set_gamma @106
+ png_set_gray_1_2_4_to_8 @107
+ png_set_gray_to_rgb @108
+ png_set_hIST @109
+ png_set_iCCP @110
+ png_set_interlace_handling @111
+ png_set_invert_alpha @112
+ png_set_invert_mono @113
+ png_set_keep_unknown_chunks @114
+ png_set_oFFs @115
+ png_set_pCAL @116
+ png_set_pHYs @117
+ png_set_packing @118
+ png_set_packswap @119
+ png_set_palette_to_rgb @120
+ png_set_progressive_read_fn @121
+ png_set_read_fn @122
+ png_set_read_status_fn @123
+ png_set_read_user_chunk_fn @124
+ png_set_read_user_transform_fn @125
+ png_set_rgb_to_gray @126
+ png_set_rgb_to_gray_fixed @127
+ png_set_rows @128
+ png_set_sBIT @129
+ png_set_sCAL @130
+ png_set_sPLT @131
+ png_set_sRGB @132
+ png_set_sRGB_gAMA_and_cHRM @133
+ png_set_shift @134
+ png_set_sig_bytes @135
+ png_set_strip_16 @136
+ png_set_strip_alpha @137
+ png_set_swap @138
+ png_set_swap_alpha @139
+ png_set_tIME @140
+ png_set_tRNS @141
+ png_set_tRNS_to_alpha @142
+ png_set_text @143
+ png_set_unknown_chunk_location @144
+ png_set_unknown_chunks @145
+ png_set_user_transform_info @146
+ png_set_write_fn @147
+ png_set_write_status_fn @148
+ png_set_write_user_transform_fn @149
+ png_sig_cmp @150
+ png_start_read_image @151
+ png_warning @152
+ png_write_chunk @153
+ png_write_chunk_data @154
+ png_write_chunk_end @155
+ png_write_chunk_start @156
+ png_write_end @157
+ png_write_flush @158
+ png_write_image @159
+ png_write_info @160
+ png_write_info_before_PLTE @161
+; png_write_init is deprecated
+ png_write_init @162
+ png_write_png @163
+ png_write_row @164
+ png_write_rows @165
+; png_read_init_2 and png_write_init_2 are deprecated.
+ png_read_init_2 @166
+ png_write_init_2 @167
+ png_access_version_number @168
+; png_sig_bytes @169
+; png_libpng_ver @170
+ png_init_io @171
+ png_convert_to_rfc1123 @172
+ png_set_invalid @173
+; Added at version 1.0.12
+; For compatiblity with 1.0.7-1.0.11
+ png_info_init @174
+ png_read_init_3 @175
+ png_write_init_3 @176
+ png_info_init_3 @177
+ png_destroy_struct @178
+; Added at version 1.2.0
+; For use with PNG_USER_MEM_SUPPORTED
+ png_destroy_struct_2 @179
+ png_create_read_struct_2 @180
+ png_create_write_struct_2 @181
+ png_malloc_default @182
+ png_free_default @183
+; MNG features
+ png_permit_mng_features @184
+; MMX support
+ png_mmx_support @185
+ png_get_mmx_flagmask @186
+ png_get_asm_flagmask @187
+ png_get_asm_flags @188
+ png_get_mmx_bitdepth_threshold @189
+ png_get_mmx_rowbytes_threshold @190
+ png_set_asm_flags @191
+ png_init_mmx_flags @192
+; Strip error numbers
+ png_set_strip_error_numbers @193
+; Added at version 1.2.2
+ png_handle_as_unknown @194
+; Added at version 1.2.2 and deleted from 1.2.3
+; png_zalloc @195
+; png_zfree @196
+; Added at version 1.2.4
+ png_malloc_warn @195
--- /dev/null
+LIBRARY
+DESCRIPTION "zlib compression library for Windows"
+
+EXPORTS
+ adler32 @1
+ compress @2
+ crc32 @3
+ deflate @4
+ deflateCopy @5
+ deflateEnd @6
+ deflateInit2_ @7
+ deflateInit_ @8
+ deflateParams @9
+ deflateReset @10
+ deflateSetDictionary @11
+ gzclose @12
+ gzdopen @13
+ gzerror @14
+ gzflush @15
+ gzopen @16
+ gzread @17
+ gzwrite @18
+ inflate @19
+ inflateEnd @20
+ inflateInit2_ @21
+ inflateInit_ @22
+ inflateReset @23
+ inflateSetDictionary @24
+ inflateSync @25
+ uncompress @26
+ zlibVersion @27
+ gzprintf @28
+ gzputc @29
+ gzgetc @30
+ gzseek @31
+ gzrewind @32
+ gztell @33
+ gzeof @34
+ gzsetparams @35
+ zError @36
+ inflateSyncPoint @37
+ get_crc_table @38
+ compress2 @39
+ gzputs @40
+ gzgets @41
--- /dev/null
+# Microsoft Developer Studio Project File - Name="zlib" - Package Owner=<4>
+# Microsoft Developer Studio Generated Build File, Format Version 6.00
+# ** DO NOT EDIT **
+
+# TARGTYPE "Win32 (x86) Dynamic-Link Library" 0x0102
+# TARGTYPE "Win32 (x86) Static Library" 0x0104
+
+CFG=zlib - Win32 DLL
+!MESSAGE This is not a valid makefile. To build this project using NMAKE,
+!MESSAGE use the Export Makefile command and run
+!MESSAGE
+!MESSAGE NMAKE /f "zlib.mak".
+!MESSAGE
+!MESSAGE You can specify a configuration when running NMAKE
+!MESSAGE by defining the macro CFG on the command line. For example:
+!MESSAGE
+!MESSAGE NMAKE /f "zlib.mak" CFG="zlib - Win32 DLL"
+!MESSAGE
+!MESSAGE Possible choices for configuration are:
+!MESSAGE
+!MESSAGE "zlib - Win32 DLL" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "zlib - Win32 DLL Debug" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "zlib - Win32 DLL ASM" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "zlib - Win32 DLL Debug ASM" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE "zlib - Win32 LIB" (based on "Win32 (x86) Static Library")
+!MESSAGE "zlib - Win32 LIB Debug" (based on "Win32 (x86) Static Library")
+!MESSAGE "zlib - Win32 DLL VB" (based on "Win32 (x86) Dynamic-Link Library")
+!MESSAGE
+
+# Begin Project
+# PROP AllowPerConfigDependencies 0
+# PROP Scc_ProjName ""
+# PROP Scc_LocalPath ""
+
+!IF "$(CFG)" == "zlib - Win32 DLL"
+
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+# ADD LINK32 /nologo /dll /machine:I386
+# SUBTRACT LINK32 /pdb:none
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+# PROP BASE Use_MFC 0
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+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM"
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+MTL=midl.exe
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+# ADD RSC /l 0x409 /i "..\.." /d "NDEBUG"
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+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 /nologo /dll /machine:I386
+# ADD LINK32 gvmat32.obj /nologo /dll /machine:I386 /out:".\win32\zlib\dll_asm\zliba.dll"
+# SUBTRACT LINK32 /pdb:none
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug ASM"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
+# PROP BASE Output_Dir "Debug"
+# PROP BASE Intermediate_Dir "Debug"
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+# ADD BASE CPP /nologo /MDd /W3 /Zi /Od /D "_DEBUG" /D "WIN32" /D "_WINDOWS" /D "_USRDLL" /FD /GZ /c
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+# ADD RSC /l 0x409 /i "..\.." /d "_DEBUG"
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+# ADD BASE BSC32 /nologo
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+# ADD LINK32 gvmat32d.obj /nologo /dll /debug /machine:I386 /out:".\win32\zlib\dll_dbga\zlibb.dll"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
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+# PROP BASE Intermediate_Dir "Release"
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+# ADD BASE CPP /nologo /W3 /O1 /D "WIN32" /D "NDEBUG" /D "_LIB" /FD /c
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+# ADD RSC /l 0x409 /d "NDEBUG"
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+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
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+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 1
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+# ADD RSC /l 0x409 /d "_DEBUG"
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+# ADD BASE LIB32 /nologo
+# ADD LIB32 /nologo
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL VB"
+
+# PROP BASE Use_MFC 0
+# PROP BASE Use_Debug_Libraries 0
+# PROP BASE Output_Dir "zlib___Win32_DLL_VB"
+# PROP BASE Intermediate_Dir "zlib___Win32_DLL_VB"
+# PROP BASE Ignore_Export_Lib 0
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+# PROP Use_Debug_Libraries 0
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+# ADD BASE BSC32 /nologo
+# ADD BSC32 /nologo
+LINK32=link.exe
+# ADD BASE LINK32 /nologo /dll /machine:I386
+# SUBTRACT BASE LINK32 /pdb:none
+# ADD LINK32 /nologo /dll /machine:I386 /out:".\win32\zlib\dll_vb/zlibvb.dll"
+# SUBTRACT LINK32 /pdb:none
+
+!ENDIF
+
+# Begin Target
+
+# Name "zlib - Win32 DLL"
+# Name "zlib - Win32 DLL Debug"
+# Name "zlib - Win32 DLL ASM"
+# Name "zlib - Win32 DLL Debug ASM"
+# Name "zlib - Win32 LIB"
+# Name "zlib - Win32 LIB Debug"
+# Name "zlib - Win32 DLL VB"
+# Begin Group "Source Files"
+
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+# Begin Source File
+
+SOURCE=..\..\..\zlib\adler32.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\compress.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\crc32.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\deflate.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\contrib\asm386\gvmat32c.c
+
+!IF "$(CFG)" == "zlib - Win32 DLL"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug ASM"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL VB"
+
+# PROP BASE Exclude_From_Build 1
+# PROP Exclude_From_Build 1
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\gzio.c
+# ADD CPP /Yc"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\infblock.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\infcodes.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\inffast.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\inflate.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\inftrees.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\infutil.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\trees.c
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\uncompr.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\zlib.def
+
+!IF "$(CFG)" == "zlib - Win32 DLL"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug ASM"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL VB"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\msdos\zlib.rc
+
+!IF "$(CFG)" == "zlib - Win32 DLL"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL ASM"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL Debug ASM"
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 LIB Debug"
+
+# PROP Exclude_From_Build 1
+
+!ELSEIF "$(CFG)" == "zlib - Win32 DLL VB"
+
+!ENDIF
+
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\zutil.c
+# ADD CPP /Yu"zutil.h"
+# End Source File
+# End Group
+# Begin Group "Header Files"
+
+# PROP Default_Filter "h;hpp;hxx;hm;inl"
+# Begin Source File
+
+SOURCE=..\..\..\zlib\deflate.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\infblock.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\infcodes.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\inffast.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\inffixed.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\inftrees.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\infutil.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\trees.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\zconf.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\zlib.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\..\zlib\zutil.h
+# End Source File
+# End Group
+# Begin Group "Resource Files"
+
+# PROP Default_Filter "ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe"
+# End Group
+# End Target
+# End Project
--- /dev/null
+A set of project files is available for Netware. Get
+libpng-1.2.4-project-netware.zip from a libpng distribution
+site such as http://libpng.sourceforge.net
+
+Put the zip file in this directory (projects) and then run
+"unzip -a libpng-1.2.4-project-netware.zip"
--- /dev/null
+A set of project files is available for WinCE. Get
+libpng-1.2.4-project-wince.zip from a libpng distribution
+site such as http://libpng.sourceforge.net
+
+Put the zip file in this directory (projects) and then run
+"unzip -a libpng-1.2.4-project-wince.zip"
--- /dev/null
+
+usage()
+{
+ cat <<EOF
+Usage: libpng-config [OPTION] ...
+
+Known values for OPTION are:
+
+ --prefix print libpng prefix
+ --libs print library linking information
+ --cflags print compiler flags
+ --cppflags print pre-processor flags
+ --ldflags print loader flags
+ --rpath print path to shared library
+ --help display this help and exit
+ --version output version information
+EOF
+
+ exit $1
+}
+
+if test $# -eq 0; then
+ usage 1
+fi
+
+while test $# -gt 0; do
+ case "$1" in
+
+ --prefix)
+ echo ${prefix}
+ ;;
+
+ --version)
+ echo ${version}
+ exit 0
+ ;;
+
+ --help)
+ usage 0
+ ;;
+
+ --cflags)
+ echo ${cflags}
+ ;;
+
+ --cppflags)
+ echo ${cppflags}
+ ;;
+
+ --libs)
+ echo ${libs}
+ ;;
+
+ --rpath)
+ echo ${rpath}
+ ;;
+
+ --ldflags)
+ echo ${ldflags}
+ ;;
+
+ *)
+ usage
+ exit 1
+ ;;
+ esac
+ shift
+done
+
+exit 0
--- /dev/null
+#! /bin/sh
+
+# libpng-config
+# provides configuration info for libpng.
+
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Modeled after libxml-config.
+
+version=1.2.4
+prefix=""
+cppflags=""
+cflags=""
+ldflags=""
+libs=""
+rpath=""
+
--- /dev/null
+// Project file for libpng (static)
+// IBM VisualAge/C++ version 4.0 or later
+// Copyright (C) 2000 Cosmin Truta
+// For conditions of distribution and use, see copyright notice in png.h
+// Notes:
+// All modules are compiled in C mode
+// Tested with IBM VAC++ 4.0 under Win32
+// Expected to work with IBM VAC++ 4.0 or later under OS/2 and Win32
+// Can be easily adapted for IBM VAC++ 4.0 or later under AIX
+// For conditions of distribution and use, see copyright notice in png.h
+
+option incl(searchpath, "../zlib"), opt(level, "2"),
+ link(libsearchpath, "../zlib")
+{
+ target type(lib) "libpng.lib"
+ {
+ source type(c) "png.c"
+ source type(c) "pngerror.c"
+ source type(c) "pngget.c"
+ source type(c) "pngmem.c"
+ source type(c) "pngpread.c"
+ source type(c) "pngread.c"
+ source type(c) "pngrio.c"
+ source type(c) "pngrtran.c"
+ source type(c) "pngrutil.c"
+ source type(c) "pngset.c"
+ source type(c) "pngtrans.c"
+ source type(c) "pngwio.c"
+ source type(c) "pngwrite.c"
+ source type(c) "pngwtran.c"
+ source type(c) "pngwutil.c"
+ }
+}
+
+option incl(searchpath, "../zlib"), opt(level, "2"),
+ link(libsearchpath, "../zlib")
+{
+ target type(exe) "pngtest.exe"
+ {
+ source type(c) "pngtest.c"
+ source type(lib) "libpng.lib"
+ source type(lib) "zlib.lib"
+ }
+}
--- /dev/null
+
+prefix=@PREFIX@
+exec_prefix=${prefix}
+libdir=${exec_prefix}/lib
+includedir=${exec_prefix}/include
+
+Name: libpng12
+Description: Loads and saves PNG files
+Version: 1.2.4
+Libs: -L${libdir} -lpng12 -lz -lm
+Cflags: -I${includedir}/libpng12
--- /dev/null
+# makefile for libpng on Solaris 2.x with cc
+# Contributed by William L. Sebok, based on makefile.linux
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1998 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=cc
+SUN_CC_FLAGS=-fast -xtarget=ultra
+SUN_LD_FLAGS=-fast -xtarget=ultra
+
+# where make install puts libpng.a, libpng12.so and libpng12/png.h
+prefix=/a
+
+# Where the zlib library and include files are located
+# Changing these to ../zlib poses a security risk. If you want
+# to have zlib in an adjacent directory, specify the full path instead of "..".
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+
+ZLIBLIB=/usr/lib
+ZLIBINC=/usr/include
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+CFLAGS=-I$(ZLIBINC) $(SUN_CC_FLAGS) \
+ # $(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+LIBNAME=libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"-xtarget=ultra\"; \
+ echo ldflags=\"-xtarget=ultra -L$(LIBPATH) -R$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ @case "`type ld`" in *ucb*) \
+ echo; \
+ echo '## WARNING:'; \
+ echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
+ echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
+ echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
+ echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
+ echo '## at all. If it is, things are likely to break because of'; \
+ echo '## the libucb dependency that is created.'; \
+ echo; \
+ ;; \
+ esac
+ $(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBNAME).so.$(PNGMAJ) \
+ -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL) -lz
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm $(DI)/libpng
+ (cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig
+ -@/bin/rm -f $(DL)/pkgconfig/libpng12.pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/libpng12.pc
+ chmod 644 $(DL)/pkgconfig/libpng12.pc
+ (cd $(DL)/pkgconfig; ln -f -s libpng12.pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/libpng12-config
+ cp libpng-config $(DB)/libpng12-config
+ chmod 755 $(DB)/libpng12-config
+ (cd $(DB); ln -sf libpng12-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ echo
+ echo Testing installed dynamic shared library.
+ $(CC) $(SUN_CC_FLAGS) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs` \
+ $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc \
+ libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)*
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng on Solaris 2.x with cc
+# Contributed by William L. Sebok, based on makefile.linux
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1998 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=cc
+SUN_CC_FLAGS=-fast -xtarget=ultra -xarch=v9
+SUN_LD_FLAGS=-fast -xtarget=ultra -xarch=v9
+
+# where make install puts libpng.a, libpng12.so and libpng12/png.h
+prefix=/a
+
+# Where the zlib library and include files are located
+# Changing these to ../zlib poses a security risk. If you want
+# to have zlib in an adjacent directory, specify the full path instead of "..".
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+
+ZLIBLIB=/usr/lib
+ZLIBINC=/usr/include
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+CFLAGS=-I$(ZLIBINC) $(SUN_CC_FLAGS) \
+ # $(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -R. $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+LIBNAME=libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"-xtarget=ultra -xarch=v9\"; \
+ echo ldflags=\"-xtarget=ultra -xarch=v9 -L$(LIBPATH) -R$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ @case "`type ld`" in *ucb*) \
+ echo; \
+ echo '## WARNING:'; \
+ echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
+ echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
+ echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
+ echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
+ echo '## at all. If it is, things are likely to break because of'; \
+ echo '## the libucb dependency that is created.'; \
+ echo; \
+ ;; \
+ esac
+ $(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBNAME).so.$(PNGMAJ) \
+ -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL) -lz
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm $(DI)/libpng
+ (cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -f -s $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ echo
+ echo Testing installed dynamic shared library.
+ $(CC) $(SUN_CC_FLAGS) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs` \
+ $(SUN_LD_FLAGS) -L$(ZLIBLIB) -R$(ZLIBLIB)
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc \
+ libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)*
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# Project: libpng
+
+
+# Toolflags:
+CCflags = -c -depend !Depend -IC:,Zlib: -g -throwback -DRISCOS -fnah
+C++flags = -c -depend !Depend -IC: -throwback
+Linkflags = -aif -c++ -o $@
+ObjAsmflags = -throwback -NoCache -depend !Depend
+CMHGflags =
+LibFileflags = -c -l -o $@
+Squeezeflags = -o $@
+
+
+# Final targets:
+@.libpng-lib: @.o.png @.o.pngerror @.o.pngrio @.o.pngwio @.o.pngmem \
+ @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngrtran \
+ @.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
+ LibFile $(LibFileflags) @.o.png @.o.pngerror @.o.pngrio @.o.pngrtran \
+ @.o.pngmem @.o.pngpread @.o.pngset @.o.pngget @.o.pngread @.o.pngwio \
+ @.o.pngrutil @.o.pngtrans @.o.pngwrite @.o.pngwtran @.o.pngwutil
+@.mm-libpng-lib: @.mm.png @.mm.pngerror @.mm.pngrio @.mm.pngwio @.mm.pngmem \
+ @.mm.pngpread @.mm.pngset @.mm.pngget @.mm.pngread @.mm.pngrtran \
+ @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite @.mm.pngwtran @.mm.pngwutil
+ LibFile $(LibFileflags) @.mm.png @.mm.pngerror @.mm.pngrio \
+ @.mm.pngwio @.mm.pngmem @.mm.pngpread @.mm.pngset @.mm.pngget \
+ @.mm.pngread @.mm.pngrtran @.mm.pngrutil @.mm.pngtrans @.mm.pngwrite \
+ @.mm.pngwtran @.mm.pngwutil
+
+
+# User-editable dependencies:
+# (C) Copyright 1997 Tom Tanner
+Test: @.pngtest
+ <Prefix$Dir>.pngtest
+ @remove <Prefix$Dir>.pngtest
+
+#It would be nice if you could stop "make" listing from here on!
+@.pngtest: @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
+ Link $(Linkflags) @.o.pngtest @.libpng-lib C:o.Stubs Zlib:zlib_lib
+
+.SUFFIXES: .o .mm .c
+
+.c.mm:
+ MemCheck.CC cc $(ccflags) -o $@ LibPng:$<
+.c.o:
+ cc $(ccflags) -o $@ $<
+
+
+# Static dependencies:
+
+
+# Dynamic dependencies:
--- /dev/null
+# makefile for libpng using gcc (generic, static library)
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 2000 Cosmin Truta
+# Copyright (C) 2000 Marc O. Gloor (AIX support added, from makefile.gcc)
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Location of the zlib library and include files
+ZLIBINC = ../zlib
+ZLIBLIB = ../zlib
+
+# Compiler, linker, lib and other tools
+CC = gcc
+LD = $(CC)
+AR = ar rcs
+RANLIB = ranlib
+RM = rm -f
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DI=$(DESTDIR)/$(INCPATH)
+DL=$(DESTDIR)/$(LIBPATH)
+
+CDEBUG = -g -DPNG_DEBUG=5
+LDDEBUG =
+CRELEASE = -O2
+LDRELEASE = -s
+CFLAGS = -I$(ZLIBINC) -Wall $(CRELEASE)
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm $(LDRELEASE)
+
+# File extensions
+O=.o
+A=.a
+E=
+
+# Variables
+OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
+ pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
+ pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+
+# Targets
+all: libpng$(A) pngtest$(E)
+
+libpng$(A): $(OBJS)
+ $(AR) $@ $(OBJS)
+ $(RANLIB) $@
+
+test: pngtest$(E)
+ ./pngtest$(E)
+
+pngtest$(E): pngtest$(O) libpng$(A)
+ $(LD) -o $@ pngtest$(O) $(LDFLAGS)
+
+install: libpng.a
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/libpng ]; then mkdir $(DI)/libpng; fi
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@rm $(DI)/png.h
+ -@rm $(DI)/pngconf.h
+ cp png.h pngconf.h $(DI)/libpng
+ chmod 644 $(DI)/libpng/png.h \
+ $(DI)/libpng/pngconf.h
+ (cd $(DI); ln -f -s libpng/* .)
+ cp libpng.a $(DL)
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngout.png
+
+png$(O): png.h pngconf.h
+pngerror$(O): png.h pngconf.h
+pngget$(O): png.h pngconf.h
+pngmem$(O): png.h pngconf.h
+pngpread$(O): png.h pngconf.h
+pngread$(O): png.h pngconf.h
+pngrio$(O): png.h pngconf.h
+pngrtran$(O): png.h pngconf.h
+pngrutil$(O): png.h pngconf.h
+pngset$(O): png.h pngconf.h
+pngtest$(O): png.h pngconf.h
+pngtrans$(O): png.h pngconf.h
+pngwio$(O): png.h pngconf.h
+pngwrite$(O): png.h pngconf.h
+pngwtran$(O): png.h pngconf.h
+pngwutil$(O): png.h pngconf.h
+
--- /dev/null
+# Commodore Amiga Makefile
+# makefile for libpng and SAS C V6.5x compiler
+# Copyright (C) 1995-2000 Wolf Faust
+# For conditions of distribution and use, see copyright notice in png.h
+#
+# Note: Use #define PNG_READ_BIG_ENDIAN_SUPPORTED in pngconf.h
+#
+# Location/path of zlib include files
+ZLIB=/zlib
+#compiler
+CC=sc
+#compiler flags
+# WARNING: a bug in V6.51 causes bad code with OPTGO
+# So use V6.55 or set NOOPTGO!!!!!!!!!
+CFLAGS= NOSTKCHK PARMS=REG OPTIMIZE OPTGO OPTPEEP OPTINLOCAL OPTINL\
+ OPTLOOP OPTRDEP=4 OPTDEP=4 OPTCOMP=4 INCLUDEDIR=$(ZLIB) \
+ DEFINE=PNG_INTERNAL
+#linker flags
+LDFLAGS= SD ND BATCH
+#link libs
+LDLIBS= libpng.lib libgz.lib LIB:scm.lib LIB:sc.lib Lib:amiga.lib
+# linker
+LN= slink
+# file deletion command
+RM= delete quiet
+# library (.lib) file creation command
+AR= oml
+# make directory command
+MKDIR= makedir
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.lib pngtest
+
+libpng.lib: $(OBJS)
+-$(RM) libpng.lib
+$(AR) libpng.lib r $(OBJS)
+
+pngtest: pngtest.o libpng.lib
+$(LN) <WITH <
+$(LDFLAGS)
+TO pngtest
+FROM LIB:c.o pngtest.o
+LIB $(LDLIBS)
+<
+
--- /dev/null
+# makefile for libpng
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+# modified for LC56/ATARI assumes libz.lib is in same dir and uses default
+# rules for library management
+#
+CFLAGS=-I..\zlib -O
+LBR = png.lib
+LDFLAGS=-lpng -lz -lm
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+OBJS = $(LBR)(png.o) $(LBR)(pngset.o) $(LBR)(pngget.o) $(LBR)(pngrutil.o)\
+ $(LBR)(pngtrans.o) $(LBR)(pngwutil.o)\
+ $(LBR)(pngread.o) $(LBR)(pngerror.o) $(LBR)(pngwrite.o)\
+ $(LBR)(pngrtran.o) $(LBR)(pngwtran.o)\
+ $(LBR)(pngmem.o) $(LBR)(pngrio.o) $(LBR)(pngwio.o) $(LBR)(pngpread.o)
+
+all: $(LBR) pngtest.ttp
+
+$(LBR): $(OBJS)
+
+pngtest.ttp: pngtest.o $(LBR)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o$@ pngtest.o
+
+install: libpng.a
+ -@mkdir $(DESTDIR)$(INCPATH)
+ -@mkdir $(DESTDIR)$(INCPATH)/libpng
+ -@mkdir $(DESTDIR)$(LIBPATH)
+ -@rm -f $(DESTDIR)$(INCPATH)/png.h
+ -@rm -f $(DESTDIR)$(INCPATH)/pngconf.h
+ cp png.h $(DESTDIR)$(INCPATH)/libpng
+ cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
+ (cd $(DESTDIR)$(INCPATH); ln -f -s $(LIBNAME) libpng; \
+ ln -f -s $(LIBNAME)/* .)
--- /dev/null
+# Makefile for libpng
+# 32-bit Borland C++ (Note: All modules are compiled in C mode)
+# To build the library, do:
+# "make -fmakefile.bc32"
+#
+# -------------------- 32-bit Borland C++ --------------------
+
+### Absolutely necessary for this makefile to work
+.AUTODEPEND
+
+## Where zlib.h, zconf.h and zlib.lib are
+ZLIB_DIR=..\zlib
+
+
+## Compiler, linker and lib stuff
+CC=bcc32
+LD=bcc32
+LIB=tlib
+
+#TARGET_CPU=6
+# 3 = 386, 4 = 486, 5 = Pentium etc.
+!ifndef TARGET_CPU
+TARGET_CPU=5
+!endif
+
+# Use this if you don't want Borland's fancy exception handling
+NOEHLIB=noeh32.lib
+
+!ifdef DEBUG
+CDEBUG=-v
+LDEBUG=-v
+!else
+CDEBUG=
+LDEBUG=
+!endif
+
+# STACKOFLOW=1
+!ifdef STACKOFLOW
+CDEBUG=$(CDEBUG) -N
+LDEBUG=$(LDEBUG) -N
+!endif
+
+# -X- turn on dependency generation in the object file
+# -w set all warnings on
+# -O2 optimize for speed
+# -Z global optimization
+CFLAGS=-O2 -Z -X- -w -I$(ZLIB_DIR) -$(TARGET_CPU) $(CDEBUG)
+
+# -M generate map file
+LDFLAGS=-M -L$(ZLIB_DIR) $(LDEBUG)
+
+
+## Variables
+OBJS = \
+ png.obj \
+ pngerror.obj \
+ pngget.obj \
+ pngmem.obj \
+ pngpread.obj \
+ pngread.obj \
+ pngrio.obj \
+ pngrtran.obj \
+ pngrutil.obj \
+ pngset.obj \
+ pngtrans.obj \
+ pngwio.obj \
+ pngwrite.obj \
+ pngwtran.obj \
+ pngwutil.obj
+
+LIBOBJS = \
+ +png.obj \
+ +pngerror.obj \
+ +pngget.obj \
+ +pngmem.obj \
+ +pngpread.obj \
+ +pngread.obj \
+ +pngrio.obj \
+ +pngrtran.obj \
+ +pngrutil.obj \
+ +pngset.obj \
+ +pngtrans.obj \
+ +pngwio.obj \
+ +pngwrite.obj \
+ +pngwtran.obj \
+ +pngwutil.obj
+
+LIBNAME=libpng.lib
+
+
+## Implicit rules
+# Braces let make "batch" calls to the compiler,
+# 2 calls instead of 12; space is important.
+.c.obj:
+ $(CC) $(CFLAGS) -c {$*.c }
+
+.c.exe:
+ $(CC) $(CFLAGS) $(LDFLAGS) $*.c $(LIBNAME) zlib.lib $(NOEHLIB)
+
+.obj.exe:
+ $(LD) $(LDFLAGS) $*.obj $(LIBNAME) zlib.lib $(NOEHLIB)
+
+
+## Major targets
+all: libpng pngtest
+
+libpng: $(LIBNAME)
+
+pngtest: pngtest.exe
+
+test: pngtest.exe
+ pngtest
+
+
+## Minor Targets
+
+png.obj: png.c
+pngerror.obj: pngerror.c
+pngget.obj: pngget.c
+pngmem.obj: pngmem.c
+pngpread.obj: pngpread.c
+pngread.obj: pngread.c
+pngrio.obj: pngrio.c
+pngrtran.obj: pngrtran.c
+pngrutil.obj: pngrutil.c
+pngset.obj: pngset.c
+pngtrans.obj: pngtrans.c
+pngwio.obj: pngwio.c
+pngwrite.obj: pngwrite.c
+pngwtran.obj: pngwtran.c
+pngwutil.obj: pngwutil.c
+
+
+$(LIBNAME): $(OBJS)
+ -del $(LIBNAME)
+ $(LIB) $(LIBNAME) @&&|
+$(LIBOBJS), libpng
+|
+
+
+# Clean up anything else you want
+clean:
+ -del *.obj
+ -del *.exe
+ -del *.lib
+ -del *.lst
+ -del *.map
+ -del *.tds
+
+
+# End of makefile for libpng
--- /dev/null
+# Makefile for png32bd.dll
+# -------------------- 32-bit Borland C++ --------------------
+
+# This makefile expects to find zlib.h and zlib32bd.lib in the
+# $(ZLIBDIR) directory.
+
+# The object files here are compiled with the "stdcall" calling convention.
+# This DLL requires zlib32bd.lib to be compiled in the same way.
+
+# Note that png32bd.dll exports the zlib functions adler32, crc32 and
+# the deflate... and inflate... functions. It does not export the
+# compress and uncompress functions, nor any of the gz... functions,
+# since libpng does not call them.
+
+.AUTODEPEND
+
+ZLIBDIR=..\zlib
+ZLIB=zlib32bd.lib
+PNGDLL=png32bd.dll
+PNGLIB=png32bd.lib
+
+CC=bcc32
+CFLAGS= -ps -O2 -N- -k- -d -r- -w-par -w-aus -I$(ZLIBDIR) \
+ -DPNG_NO_GLOBAL_ARRAYS #-DPNG_DEBUG=5
+#LINK=tlink32
+#LINK=ilink32
+LINK=bcc32
+#LINKFLAGS= -Tpd -aa -c
+LINKFLAGS= -WDE
+IMPLIB=implib
+
+# Use this if you don't want Borland's fancy exception handling
+NOEHLIB=noeh32.lib
+
+.c.obj:
+ $(CC) -c $(CFLAGS) $<
+
+.c.exe:
+ $(CC) $(CFLAGS) $< $(PNGLIB) $(NOEHLIB)
+
+
+OBJ1=png.obj pngerror.obj pngget.obj pngmem.obj pngpread.obj
+OBJ2=pngread.obj pngrio.obj pngrtran.obj pngrutil.obj pngset.obj
+OBJ3=pngtrans.obj pngwio.obj pngwrite.obj pngwtran.obj pngwutil.obj
+
+all: $(PNGDLL)
+
+test: pngtest.exe
+ pngtest
+
+
+$(PNGDLL): $(OBJ1) $(OBJ2) $(OBJ3) $(ZLIBDIR)\$(ZLIB)
+ $(LINK) @&&|
+$(LINKFLAGS)
+-e$(PNGDLL)
+$(OBJ1)
+$(OBJ2)
+$(OBJ3)
+$(ZLIBDIR)\$(ZLIB)
+$(NOEHLIB)
+|
+ $(IMPLIB) -c $(@R).lib $@
+
+
+# Clean up anything else you want
+clean:
+ -del *.obj
+ -del *.dll
+ -del *.exe
+ -del *.lib
+ -del *.lst
+ -del *.map
+ -del *.tds
+
+
+# End of makefile for png32bd.dll
--- /dev/null
+# makefile for libpng on BeOS x86 ELF with gcc
+# modified from makefile.linux by Sander Stoks
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1999 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=gcc
+
+# Where the zlib library and include files are located
+ZLIBLIB=/usr/local/lib
+ZLIBINC=/usr/local/include
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+ALIGN=
+# For i386:
+# ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+# On BeOS, -O1 is actually better than -O3. This is a known bug but it's
+# still here in R4.5
+CFLAGS=-I$(ZLIBINC) -Wall -O1 -funroll-loops \
+ $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+# LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng -lz -lm
+LDFLAGS=-L. -Wl,-soname=$(LIBNAME).so.$(PNGMAJ) -L$(ZLIBLIB) -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+# where make install puts libpng.a, libpng12.so*, and png.h
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+LIBNAME=libpng12
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS)
+
+.SUFFIXES: .c .o
+
+all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-Wl,-soname=$(LIBNAME).so.$(PNGMAJ)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+ cp $(LIBNAME).so* /boot/home/config/lib
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ $(CC) -L$(ZLIBLIB) -lz -nostart -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) -o
+$(LIBNAME).so.$(PNGVER) \
+ $(OBJSDLL)
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -L$(ZLIBLIB) -lz -lpng12 -o pngtest pngtest.o
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) $(CFLAGS) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtesti
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for cygwin on x86
+# Builds both dll (with import lib) and static lib versions
+# of the library, and builds two copies of pngtest: one
+# statically linked and one dynamically linked.
+#
+# Copyright (C) 2002 Soren Anderson, Charles Wilson, and Glenn Randers-Pehrson
+# based on makefile for linux-elf w/mmx by:
+# Copyright (C) 1998-2000 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+# This makefile intends to support building outside the src directory
+# if desired. When invoking it, specify an argument to SRCDIR on the
+# command line that points to the top of the directory where your source
+# is located.
+
+ifdef SRCDIR
+VPATH = $(SRCDIR)
+else
+SRCDIR = .
+endif
+
+# Override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+
+DESTDIR=
+
+# To enable assembler optimizations, add '-DPNG_USE_PNGGCCRD' to
+# $CFLAGS, and include pnggccrd.o in $OBJS, below, and in the dependency
+# list at the bottom of this makefile.
+
+CC=gcc
+ifdef MINGW
+MINGW_CCFLAGS=-mno-cygwin -I/usr/include/mingw
+MINGW_LDFLAGS=-mno-cygwin -L/usr/lib/mingw
+endif
+
+# Where "make install" puts libpng*.a, *png*.dll, png.h, and pngconf.h
+ifndef prefix
+prefix=/usr
+$(warning You haven't specified a 'prefix=' location. Defaulting to "/usr")
+endif
+
+# Where the zlib library and include files are located
+ZLIBLIB= /usr/lib
+ZLIBINC=
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+
+ALIGN=
+# for i386:
+#ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+### if you use the asm, add pnggccrd.o to the OBJS list
+###
+### if you don't need thread safety, but want the asm accel
+#CFLAGS= $(strip $(MINGW_CCFLAGS) -DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD \
+# $(addprefix -I,$(ZLIBINC)) -Wall -O3 $(ALIGN) -funroll-loops \
+# -fomit-frame-pointer) # $(WARNMORE) -g -DPNG_DEBUG=5
+### if you need thread safety and want (minimal) asm accel
+#CFLAGS= $(strip $(MINGW_CCFLAGS) -DPNG_USE_PNGGCCRD $(addprefix -I,$(ZLIBINC)) \
+# -Wall -O3 $(ALIGN) -funroll-loops \
+# -fomit-frame-pointer) # $(WARNMORE) -g -DPNG_DEBUG=5
+### Normal (non-asm) compilation
+CFLAGS= $(strip $(MINGW_CCFLAGS) $(addprefix -I,$(ZLIBINC)) \
+ -Wall -O3 $(ALIGN) -funroll-loops \
+ -fomit-frame-pointer) # $(WARNMORE) -g -DPNG_DEBUG=5
+
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGDLL = 13
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+SHAREDLIB=cygpng$(PNGDLL).dll
+STATLIB=libpng.a
+IMPLIB=libpng.dll.a
+SHAREDDEF=libpng.def
+LIBS=$(SHAREDLIB) $(STATLIB)
+EXE=.exe
+
+LDFLAGS=$(strip -L. $(MINGW_LDFLAGS) -lpng $(addprefix -L,$(ZLIBLIB)) -lz)
+LDSFLAGS=$(strip -shared -L. $(MINGW_LDFLAGS) -Wl,--export-all)
+LDEXTRA=-Wl,--out-implib=$(IMPLIB) $(addprefix -L,$(ZLIBLIB)) -lz
+
+MKDIR=/bin/mkdir -pv
+RANLIB=ranlib
+#RANLIB=echo
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+BINPATH=$(prefix)/bin
+MANPATH=$(prefix)/man
+MAN3PATH=$(MANPATH)/man3
+MAN5PATH=$(MANPATH)/man5
+
+# cosmetic: shortened strings:
+S =$(SRCDIR)
+D =$(DESTDIR)
+DB =$(D)$(BINPATH)
+DI =$(D)$(INCPATH)
+DL =$(D)$(LIBPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o # pnggccrd.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+%.o : %.c
+ $(CC) -c $(CFLAGS) -o $@ $<
+%.pic.o : CFLAGS += -DPNG_BUILD_DLL
+%.pic.o : %.c
+ $(CC) -c $(CFLAGS) -o $@ $<
+
+all: all-static all-shared libpng.pc libpng-config libpng.pc libpng-config
+
+# Make this to verify that "make [...] install" will do what you want.
+buildsetup-tell:
+ @echo VPATH is set to: \"$(VPATH)\"
+ @echo prefix is set to: \"$(prefix)\"
+ @echo -e INCPATH,LIBPATH, etc. are set to:'\n' \
+ $(addprefix $(D),$(INCPATH)'\n' $(LIBPATH)'\n' $(BINPATH)'\n' \
+ $(MANPATH)'\n' $(MAN3PATH)'\n' $(MAN5PATH)'\n')'\n'
+
+libpng.pc: scripts/libpng.pc.in
+ @echo -e Making pkg-config file for this libpng installation..'\n' \
+ using PREFIX=\"$(prefix)\"'\n'
+ cat $(S)/scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! | \
+ sed -e s/-lm// > libpng.pc
+
+libpng-config: scripts/libpng-config-head.in scripts/libpng-config-body.in
+ @echo -e Making $(LIBNAME) libpng-config file for this libpng \
+ installation..'\n' using PREFIX=\"$(prefix)\"'\n'
+ ( cat $(S)/scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-L$(LIBPATH)\"; \
+ echo libs=\"-lpng$(PNGMAJ) -lz\"; \
+ cat $(S)/scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+static: all-static
+shared: all-shared
+all-static: $(STATLIB) pngtest-stat$(EXE)
+all-shared: $(SHAREDLIB) pngtest$(EXE)
+
+pnggccrd.o: pnggccrd.c png.h pngconf.h
+ @echo ""
+ @echo ' You can ignore the "control reaches end of non-void function"'
+ @echo ' warning and "<variable> defined but not used" warnings:'
+ @echo ""
+ $(CC) -c $(CFLAGS) -o $@ $<
+
+pnggccrd.pic.o: pnggccrd.c png.h pngconf.h
+ @echo ""
+ @echo ' You can ignore the "control reaches end of non-void function"'
+ @echo ' warning and "<variable> defined but not used" warnings:'
+ @echo ""
+ $(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
+
+$(STATLIB): $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+$(SHAREDDEF): projects/msvc/png32ms.def
+ cat $< | sed -e '1{G;s/^\(.*\)\(\n\)/EXPORTS/;};2,/^EXPORTS/d' | \
+ sed -e 's/\([^;]*\);/;/' > $@
+
+$(SHAREDLIB): $(OBJSDLL) $(SHAREDDEF)
+ $(CC) $(LDSFLAGS) -o $@ $(OBJSDLL) -L. $(LDEXTRA)
+
+pngtest$(EXE): pngtest.pic.o $(SHAREDLIB)
+ $(CC) $(CFLAGS) $< $(LDFLAGS) -o $@
+
+pngtest-stat$(EXE): pngtest.o $(STATLIB)
+ $(CC) -static $(CFLAGS) $< $(LDFLAGS) -o $@
+
+pngtest.pic.o: pngtest.c
+ $(CC) $(CFLAGS) -c $< -o $@
+
+pngtest.o: pngtest.c
+ $(CC) $(CFLAGS) -c $< -o $@
+
+test: test-static test-shared
+
+test-static: pngtest-stat$(EXE)
+ ./pngtest-stat $(S)/pngtest.png
+
+test-shared: pngtest$(EXE)
+ ./pngtest $(S)/pngtest.png
+
+install-static: $(STATLIB) install-headers install-man
+ -@if [ ! -d $(DL) ]; then $(MKDIR) $(DL); fi
+ install -m 644 $(STATLIB) $(DL)/$(LIBNAME).a
+ -@rm -f $(DL)/$(STATLIB)
+ (cd $(DL); ln -sf $(LIBNAME).a $(STATLIB))
+
+install-shared: $(SHAREDLIB) libpng.pc libpng-config install-headers install-man
+ -@if [ ! -d $(DL) ]; then $(MKDIR) $(DL); fi
+ -@if [ ! -d $(DB) ]; then $(MKDIR) $(DB); fi
+ -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR) $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ install -m 644 $(IMPLIB) $(DL)/$(LIBNAME).dll.a
+ -@rm -f $(DL)/$(IMPLIB)
+ (cd $(DL); ln -sf $(LIBNAME).dll.a $(IMPLIB))
+ install -s -m 755 $(SHAREDLIB) $(DB)
+ install -m 644 libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-headers:
+ -@if [ ! -d $(DI) ]; then $(MKDIR) $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR) $(DI)/$(LIBNAME); fi
+ -@rm -f $(DI)/png.h
+ -@rm -f $(DI)/pngconf.h
+ install -m 644 $(S)/png.h $(S)/pngconf.h $(DI)/$(LIBNAME)
+ -@rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-man:
+ -@if [ ! -d $(D)$(MAN3PATH) ]; then $(MKDIR) $(D)$(MAN3PATH); fi
+ -@if [ ! -d $(D)$(MAN5PATH) ]; then $(MKDIR) $(D)$(MAN5PATH); fi
+ install -m 644 $(S)/libpngpf.3 $(S)/libpng.3 $(D)$(MAN3PATH)
+ install -m 644 $(S)/png.5 $(D)$(MAN5PATH)
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+# Run this to verify that a future `configure' run will pick up the settings
+# you want.
+test-config-install: SHELL=/bin/bash
+test-config-install: $(DB)/libpng-config
+ @echo -e Testing libpng-config functions...'\n'
+ @ for TYRA in LDFLAGS CPPFLAGS CFLAGS LIBS VERSION; \
+ do \
+ printf "(%d)\t %10s =%s\n" $$(($$gytiu + 1)) $$TYRA \
+ "$$($(DB)/libpng-config `echo --$$TYRA |tr '[:upper:]' '[:lower:]'`)"; \
+ gytiu=$$(( $$gytiu + 1 )); \
+ done
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) $(CFLAGS) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) \
+ -o pngtesti$(EXE) `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti$(EXE) pngtest.png
+
+clean:
+ /bin/rm -f *.pic.o *.o $(STATLIB) $(IMPLIB) $(SHAREDLIB) \
+ pngtest-stat$(EXE) pngtest$(EXE) pngout.png $(SHAREDDEF) \
+ libpng-config libpng.pc pngtesti$(EXE)
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+.PHONY: buildsetup-tell libpng.pc libpng-config test-config-install clean
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h png.c
+pngerror.o pngerror.pic.o: png.h pngconf.h pngerror.c
+pngrio.o pngrio.pic.o: png.h pngconf.h pngrio.c
+pngwio.o pngwio.pic.o: png.h pngconf.h pngwio.c
+pngmem.o pngmem.pic.o: png.h pngconf.h pngmem.c
+pngset.o pngset.pic.o: png.h pngconf.h pngset.c
+pngget.o pngget.pic.o: png.h pngconf.h pngget.c
+pngread.o pngread.pic.o: png.h pngconf.h pngread.c
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pngrtran.c
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pngrutil.c
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pngtrans.c
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pngwrite.c
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pngwtran.c
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pngwutil.c
+pngpread.o pngpread.pic.o: png.h pngconf.h pngpread.c
+
+pngtest.o: png.h pngconf.h pngtest.c
+pngtest-stat.o: png.h pngconf.h pngtest.c
+
+
+
--- /dev/null
+# makefile for libpng on Darwin / Mac OS X
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 2001 Christoph Pfisterer
+# derived from makefile.linux:
+# Copyright (C) 1998, 1999 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where "make install" puts libpng.a, libpng12.dylib, png.h and pngconf.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz
+
+#RANLIB=echo
+RANLIB=ranlib
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -fno-common -o $@ $*.c
+
+all: libpng.a $(LIBNAME).dylib pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! | \
+ sed -e s/-lm// > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-L$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).dylib: $(LIBNAME).$(PNGMAJ).dylib
+ ln -sf $(LIBNAME).$(PNGMAJ).dylib $(LIBNAME).dylib
+
+$(LIBNAME).$(PNGMAJ).dylib: $(LIBNAME).$(PNGVER).dylib
+ ln -sf $(LIBNAME).$(PNGVER).dylib $(LIBNAME).$(PNGMAJ).dylib
+
+$(LIBNAME).$(PNGVER).dylib: $(OBJSDLL)
+ $(CC) -dynamiclib \
+ -install_name $(DL)/$(LIBNAME).$(PNGMAJ).dylib \
+ -current_version $(PNGMIN) -compatibility_version $(PNGMIN) \
+ -o $(LIBNAME).$(PNGVER).dylib \
+ $(OBJSDLL) -L$(ZLIBLIB) -lz
+
+pngtest: pngtest.o $(LIBNAME).dylib
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).dylib libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).$(PNGMAJ)*.dylib
+ -@/bin/rm -f $(DL)/$(LIBNAME).dylib
+ -@/bin/rm -f $(DL)/libpng.dylib
+ -@/bin/rm -f $(DL)/libpng.3.dylib
+ -@/bin/rm -f $(DL)/libpng.3.*.dylib
+ cp $(LIBNAME).$(PNGVER).dylib $(DL)
+ chmod 755 $(DL)/$(LIBNAME).$(PNGVER).dylib
+ (cd $(DL); \
+ ln -sf $(LIBNAME).$(PNGVER).dylib libpng.dylib; \
+ ln -sf $(LIBNAME).$(PNGVER).dylib libpng.3.dylib; \
+ ln -sf $(LIBNAME).$(PNGVER).dylib libpng.3.$(PNGMIN).dylib; \
+ ln -sf $(LIBNAME).$(PNGVER).dylib $(LIBNAME).$(PNGMAJ).dylib; \
+ ln -sf $(LIBNAME).$(PNGMAJ).dylib $(LIBNAME).dylib)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) $(CFLAGS) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).*dylib pngtesti
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng under FreeBSD
+# Copyright (C) 2002 Glenn Randers-Pehrson and Andrey A. Chernov
+# For conditions of distribution and use, see copyright notice in png.h
+
+PREFIX?= /usr/local
+SHLIB_VER?= 5
+
+LIB= png
+SHLIB_MAJOR= ${SHLIB_VER}
+SHLIB_MINOR= 0
+NOPROFILE= YES
+NOOBJ= YES
+
+# where make install puts libpng.a and png.h
+DESTDIR= ${PREFIX}
+LIBDIR= /lib
+INCS= png.h pngconf.h
+INCSDIR= /include/libpng
+INCDIR= ${INCSDIR} # for 4.x bsd.lib.mk
+MAN= libpng.3 libpngpf.3 png.5
+MANDIR= /man/man
+SYMLINKS= libpng/png.h ${INCSDIR}/../png.h \
+ libpng/pngconf.h ${INCSDIR}/../pngconf.h
+LDADD+= -lm -lz
+DPADD+= ${LIBM} ${LIBZ}
+
+CFLAGS+= -I. -DPNG_USE_PNGGCCRD
+.if (${MACHINE_ARCH} != "i386")
+CFLAGS+= -DPNG_NO_ASSEMBLER_CODE
+.endif
+
+SRCS= png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
+ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
+ pngwtran.c pngmem.c pngerror.c pngpread.c pnggccrd.c
+
+pngtest: pngtest.o libpng.a
+ ${CC} ${CFLAGS} -L. -static -o pngtest pngtest.o -lpng -lz -lm
+
+CLEANFILES= pngtest pngtest.o pngout.png
+
+test: pngtest
+ ./pngtest
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+.include <bsd.lib.mk>
--- /dev/null
+# makefile for libpng using gcc (generic, static library)
+# Copyright (C) 2000 Cosmin Truta
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Location of the zlib library and include files
+ZLIBINC = ../zlib
+ZLIBLIB = ../zlib
+
+# Compiler, linker, lib and other tools
+CC = gcc
+LD = $(CC)
+AR = ar rcs
+RANLIB = ranlib
+RM = rm -f
+
+CDEBUG = -g -DPNG_DEBUG=5
+LDDEBUG =
+CRELEASE = -O2
+LDRELEASE = -s
+CFLAGS = -I$(ZLIBINC) -Wall $(CRELEASE)
+LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm $(LDRELEASE)
+
+# File extensions
+O=.o
+A=.a
+E=
+
+# Variables
+OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
+ pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
+ pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+
+# Targets
+all: libpng$(A) pngtest$(E)
+
+libpng$(A): $(OBJS)
+ $(AR) $@ $(OBJS)
+ $(RANLIB) $@
+
+test: pngtest$(E)
+ ./pngtest$(E)
+
+pngtest$(E): pngtest$(O) libpng$(A)
+ $(LD) -o $@ pngtest$(O) $(LDFLAGS)
+
+clean:
+ $(RM) *$(O) libpng$(A) pngtest$(E) pngout.png
+
+png$(O): png.h pngconf.h
+pngerror$(O): png.h pngconf.h
+pngget$(O): png.h pngconf.h
+pngmem$(O): png.h pngconf.h
+pngpread$(O): png.h pngconf.h
+pngread$(O): png.h pngconf.h
+pngrio$(O): png.h pngconf.h
+pngrtran$(O): png.h pngconf.h
+pngrutil$(O): png.h pngconf.h
+pngset$(O): png.h pngconf.h
+pngtest$(O): png.h pngconf.h
+pngtrans$(O): png.h pngconf.h
+pngwio$(O): png.h pngconf.h
+pngwrite$(O): png.h pngconf.h
+pngwtran$(O): png.h pngconf.h
+pngwutil$(O): png.h pngconf.h
+
--- /dev/null
+# makefile for libpng.a and libpng12.so on Linux ELF with gcc using MMX
+# assembler code
+# Copyright 2002 Greg Roelofs and Glenn Randers-Pehrson
+# Copyright 1998-2001 Greg Roelofs
+# Copyright 1996-1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+# CAUTION: Do not use this makefile with gcc versions 2.7.2.2 and earlier.
+
+# WARNING: The assembler code in pnggccrd.c may not be thread safe.
+
+# NOTE: When testing MMX performance on a multitasking system, make sure
+# there are no floating-point programs (e.g., SETI@Home) running in
+# the background! Context switches between MMX and FPU are expensive.
+
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+CC=gcc
+
+# where "make install" puts libpng12.a, libpng12.so*,
+# libpng12/png.h and libpng12/pngconf.h
+# Prefix must be a full pathname.
+prefix=/usr/local
+
+# Where the zlib library and include files are located.
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+ALIGN=
+# for i386:
+#ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+# for pgcc version 2.95.1, -O3 is buggy; don't use it.
+
+# Remove -DPNG_THREAD_UNSAFE_OK if you need thread safety
+### for generic gcc:
+CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall \
+ -O3 $(ALIGN) -funroll-loops \
+ -fomit-frame-pointer # $(WARNMORE) -g -DPNG_DEBUG=5
+### for gcc 2.95.2 on 686:
+#CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
+# -mcpu=i686 -malign-double -ffast-math -fstrict-aliasing \
+# $(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer
+### for gcc 2.7.2.3 on 486 and up:
+#CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
+# -m486 -malign-double -ffast-math \
+# $(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer
+
+LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o pnggccrd.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME) -DPNG_THREAD_UNSAFE_OK \
+ -DPNG_USE_PNGGCCRD\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-L$(LIBPATH) -Wl,-rpath,$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+pnggccrd.o: pnggccrd.c png.h pngconf.h
+ $(CC) -c $(CFLAGS) -o $@ $*.c
+
+pnggccrd.pic.o: pnggccrd.c png.h pngconf.h
+ $(CC) -c $(CFLAGS) -fPIC -o $@ pnggccrd.c
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ $(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
+ -o $(LIBNAME).so.$(PNGVER) \
+ $(OBJSDLL) -L$(ZLIBLIB) -lz -lm -lc
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+pngtest-static: pngtest.o libpng.a
+ $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
+
+test: pngtest pngtest-static
+ @echo ""
+ @echo " Running pngtest dynamically linked with $(LIBNAME).so:"
+ @echo ""
+ ./pngtest
+ @echo ""
+ @echo " Running pngtest statically linked with libpng.a:"
+ @echo ""
+ ./pngtest-static
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+png.o png.pic.o: png.h pngconf.h png.c
+pngerror.o pngerror.pic.o: png.h pngconf.h pngerror.c
+pngrio.o pngrio.pic.o: png.h pngconf.h pngrio.c
+pngwio.o pngwio.pic.o: png.h pngconf.h pngwio.c
+pngmem.o pngmem.pic.o: png.h pngconf.h pngmem.c
+pngset.o pngset.pic.o: png.h pngconf.h pngset.c
+pngget.o pngget.pic.o: png.h pngconf.h pngget.c
+pngread.o pngread.pic.o: png.h pngconf.h pngread.c
+pngrtran.o pngrtran.pic.o: png.h pngconf.h pngrtran.c
+pngrutil.o pngrutil.pic.o: png.h pngconf.h pngrutil.c
+pngtrans.o pngtrans.pic.o: png.h pngconf.h pngtrans.c
+pngwrite.o pngwrite.pic.o: png.h pngconf.h pngwrite.c
+pngwtran.o pngwtran.pic.o: png.h pngconf.h pngwtran.c
+pngwutil.o pngwutil.pic.o: png.h pngconf.h pngwutil.c
+pngpread.o pngpread.pic.o: png.h pngconf.h pngpread.c
+
+pngtest.o: png.h pngconf.h pngtest.c
--- /dev/null
+# makefile for libpng on HP-UX using GCC
+# Copyright (C) 2002, Glenn Randers-Pehrson
+# Copyright (C) 2001, Laurent faillie
+# Copyright (C) 1998, 1999 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=gcc
+
+# where "make install" puts libpng.a, libpng.so*, png.h and pngconf.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+ZLIBLIB=/opt/zlib/lib
+ZLIBINC=/opt/zlib/include
+
+ALIGN=
+# for i386:
+#ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+# for pgcc version 2.95.1, -O3 is buggy; don't use it.
+
+CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
+ $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+#LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).sl pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).sl: $(LIBNAME).sl.$(PNGMAJ)
+ ln -f -s $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl
+
+$(LIBNAME).sl.$(PNGMAJ): $(LIBNAME).sl.$(PNGVER)
+ ln -f -s $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ)
+
+$(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
+ $(LD) -b -L$(ZLIBLIB) +s +b $(ZLIBLIB) \
+ +h libpng.sl.$(PNGMAJ) -o libpng.sl.$(PNGVER) $(OBJSDLL) -lz
+
+pngtest: pngtest.o $(LIBNAME).sl
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).sl.$(PNGMAJ)* $(DL)/$(LIBNAME).sl
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).sl.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
+ (cd $(DL); \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -sf $(LIBNAME).sl.$(PNGVER) libpng.sl.3; \
+ ln -sf $(LIBNAME).sl.$(PNGVER) libpng.sl.3.$(PNGMIN); \
+ ln -sf $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
+ ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir \
+ $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ echo
+ echo Testing installed dynamic shared library.
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc \
+ libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)*
+
+clean:
+ /bin/rm -f *.o libpng.a $(SHAREDLIB).sl $(SHAREDLIB).sl.$(PNGMAJ)* \
+ pngtest pngout.png
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng, HPUX (10.20 and 11.00)
+# Copyright (C) 1999-2002 Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42
+# contributed by Jim Rice and updated by Chris Schleicher, Hewlett Packard
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Where the zlib library and include files are located
+ZLIBLIB=/opt/zlib/lib
+ZLIBINC=/opt/zlib/include
+
+CC=cc
+CFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
+# Caution: be sure you have built zlib with the same CFLAGS.
+CCFLAGS=-I$(ZLIBINC) -O -Ae +DA1.1 +DS2.0
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+RANLIB=ranlib
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+# where make install puts libpng.a, libpng12.sl, and png.h
+prefix=/opt/libpng
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) +z -o $@ $*.c
+
+all: libpng.a $(LIBNAME).sl pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"-Ae +DA1.1 +DS2.0"; \
+ echo ldflags=\"-L$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).sl: $(LIBNAME).sl.$(PNGMAJ)
+ ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl
+
+$(LIBNAME).sl.$(PNGMAJ): $(LIBNAME).sl.$(PNGVER)
+ ln -sf $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ)
+
+$(LIBNAME).sl.$(PNGVER): $(OBJSDLL)
+ $(LD) -b -L$(ZLIBLIB) +s +b $(ZLIBLIB) \
+ +h $(LIBNAME).sl.$(PNGMAJ) -o $(LIBNAME).sl.$(PNGVER) \
+ $(OBJSDLL) -lz
+
+pngtest: pngtest.o libpng.a
+ $(CC) -o pngtest $(CCFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).sl.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).sl.$(PNGMAJ)* $(DL)/$(LIBNAME).sl
+ -@/bin/rm -f $(DL)/libpng.sl
+ -@/bin/rm -f $(DL)/libpng.sl.3
+ -@/bin/rm -f $(DL)/libpng.sl.3.*
+ cp $(LIBNAME).sl.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).sl.$(PNGVER)
+ (cd $(DL); \
+ ln -sf $(LIBNAME).sl.$(PNGVER) libpng.sl; \
+ ln -sf $(LIBNAME).sl.$(PNGVER) libpng.sl.3; \
+ ln -sf $(LIBNAME).sl.$(PNGVER) libpng.sl.3.$(PNGMIN); \
+ ln -sf $(LIBNAME).sl.$(PNGVER) $(LIBNAME).sl.$(PNGMAJ); \
+ ln -sf $(LIBNAME).sl.$(PNGMAJ) $(LIBNAME).sl)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ echo
+ echo Testing installed dynamic shared library.
+ $(CC) $(CCFLAGS) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc \
+ libpng-config $(LIBNAME).sl $(LIBNAME).sl.$(PNGMAJ)*
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
--- /dev/null
+# Makefile for libpng (static)
+# IBM C version 3.x for Win32 and OS/2
+# Copyright (C) 2000 Cosmin Truta
+# For conditions of distribution and use, see copyright notice in png.h
+# Notes:
+# Derived from makefile.std
+# All modules are compiled in C mode
+# Tested under Win32, expected to work under OS/2
+# Can be easily adapted for IBM VisualAge/C++ for AIX
+
+# Location of the zlib library and include files
+ZLIBINC = ../zlib
+ZLIBLIB = ../zlib
+
+# Compiler, linker, lib and other tools
+CC = icc
+LD = ilink
+AR = ilib
+RM = del
+
+CFLAGS = -I$(ZLIBINC) -Mc -O2 -W3
+LDFLAGS =
+
+# File extensions
+O=.obj
+A=.lib
+E=.exe
+
+# Variables
+OBJS = png$(O) pngerror$(O) pngget$(O) pngmem$(O) pngpread$(O) \
+ pngread$(O) pngrio$(O) pngrtran$(O) pngrutil$(O) pngset$(O) \
+ pngtrans$(O) pngwio$(O) pngwrite$(O) pngwtran$(O) pngwutil$(O)
+
+LIBS = libpng$(A) $(ZLIBLIB)/zlib$(A)
+
+# Targets
+all: libpng$(A) pngtest$(E)
+
+libpng$(A): $(OBJS)
+ $(AR) -out:$@ $(OBJS)
+
+test: pngtest$(E)
+ pngtest$(E)
+
+pngtest: pngtest$(E)
+
+pngtest$(E): pngtest$(O) libpng$(A)
+ $(LD) $(LDFLAGS) pngtest$(O) $(LIBS)
+
+clean:
+ $(RM) *$(O)
+ $(RM) libpng$(A)
+ $(RM) pngtest$(E)
+ $(RM) pngout.png
+
+png$(O): png.h pngconf.h
+pngerror$(O): png.h pngconf.h
+pngget$(O): png.h pngconf.h
+pngmem$(O): png.h pngconf.h
+pngpread$(O): png.h pngconf.h
+pngread$(O): png.h pngconf.h
+pngrio$(O): png.h pngconf.h
+pngrtran$(O): png.h pngconf.h
+pngrutil$(O): png.h pngconf.h
+pngset$(O): png.h pngconf.h
+pngtest$(O): png.h pngconf.h
+pngtrans$(O): png.h pngconf.h
+pngwio$(O): png.h pngconf.h
+pngwrite$(O): png.h pngconf.h
+pngwtran$(O): png.h pngconf.h
+pngwutil$(O): png.h pngconf.h
--- /dev/null
+# Makefile for libpng
+# Microsoft Visual C++ with Intel C/C++ Compiler 4.0 and later
+
+# Copyright (C) 2000, Pawel Mrochen, based on makefile.msc which is
+# copyright 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# To use, do "nmake /f scripts\makefile.intel"
+
+
+# ------------------- Intel C/C++ Compiler 4.0 and later -------------------
+
+# Caution: the assembler code was introduced at libpng version 1.0.4 and has
+# not yet been thoroughly tested.
+
+# Use assembler code
+ASMCODE=-DPNG_USE_PNGVCRD
+
+# Where the zlib library and include files are located
+ZLIBLIB=..\zlib
+ZLIBINC=..\zlib
+
+# Target CPU
+CPU=6 # Pentium II
+#CPU=5 # Pentium
+
+# Calling convention
+CALLING=r # __fastcall
+#CALLING=z # __stdcall
+#CALLING=d # __cdecl
+
+# Uncomment next to put error messages in a file
+#ERRFILE=>>pngerrs
+
+# --------------------------------------------------------------------------
+
+
+CC=icl -c
+CFLAGS=-O2 -G$(CPU)$(CALLING) -Qip -Qunroll4 -I$(ZLIBINC) $(ASMCODE) -nologo
+LD=link
+LDFLAGS=/SUBSYSTEM:CONSOLE /NOLOGO
+
+O=.obj
+
+OBJS=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O) \
+pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O) \
+pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)
+
+
+all: test
+
+png$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngset$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngget$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngread$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngpread$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrtran$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrutil$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngvcrd$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngerror$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngmem$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrio$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwio$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngtest$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngtrans$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwrite$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwtran$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwutil$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+libpng.lib: $(OBJS)
+ if exist libpng.lib del libpng.lib
+ lib /NOLOGO /OUT:libpng.lib $(OBJS)
+
+pngtest.exe: pngtest.obj libpng.lib
+ $(LD) $(LDFLAGS) /OUT:pngtest.exe pngtest.obj libpng.lib $(ZLIBLIB)\zlib.lib
+
+test: pngtest.exe
+ pngtest.exe
+
+
+# End of makefile for libpng
--- /dev/null
+# makefile for libpng.a and libpng12.so on Linux ELF with gcc
+# Copyright (C) 1998, 1999, 2002 Greg Roelofs and Glenn Randers-Pehrson
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+LIBNAME = libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+CC=gcc
+
+# where "make install" puts libpng12.a, libpng12.so*,
+# libpng12/png.h and libpng12/pngconf.h
+# Prefix must be a full pathname.
+prefix=/usr/local
+
+# Where the zlib library and include files are located.
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+ALIGN=
+# for i386:
+#ALIGN=-malign-loops=2 -malign-functions=2
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+
+# for pgcc version 2.95.1, -O3 is buggy; don't use it.
+
+CFLAGS=-I$(ZLIBINC) -Wall -O3 -funroll-loops \
+ $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
+
+LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
+LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-L$(LIBPATH) -Wl,-rpath,$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ $(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
+ -o $(LIBNAME).so.$(PNGVER) \
+ $(OBJSDLL) -L$(ZLIBLIB) -lz -lm -lc
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+pngtest-static: pngtest.o libpng.a
+ $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
+
+test: pngtest pngtest-static
+ @echo ""
+ @echo " Running pngtest dynamically linked with $(LIBNAME).so:"
+ @echo ""
+ ./pngtest
+ @echo ""
+ @echo " Running pngtest statically linked with libpng.a:"
+ @echo ""
+ ./pngtest-static
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng, MACOS X
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# Modified by Karin Kosina <kyrah@sim.no> 20011010:
+# build shared library (*.dylib)
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CC=cc
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+
+CFLAGS=-fno-common -I$(ZLIBINC) -O # -g -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz
+LDSHARED=cc -lz -dynamiclib -compatibility_version $(PNGVER) \
+-current_version $(PNGVER)
+
+LIBNAME=libpng12
+SHAREDLIB_POSTFIX=dylib
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+#RANLIB=echo
+RANLIB=ranlib
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest shared libpng.pc libpng-config
+
+shared: $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX)
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! | \
+ sed -e s/-lm// > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-L$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+$(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX): $(OBJS)
+ $(LDSHARED) -o $@ $(OBJS)
+
+pngtest: pngtest.o libpng.a
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f \
+ $(DL)/$(LIBNAME).$(PNGMAJ)*.$(SHAREDLIB_POSTFIX)
+ -@/bin/rm -f $(DL)/$(LIBNAME).$(SHAREDLIB_POSTFIX)
+ -@/bin/rm -f libpng.$(SHARED_POSTFIX)
+ -@/bin/rm -f libpng.3.$(SHARED_POSTFIX)
+ -@/bin/rm -f libpng.3.*.$(SHARED_POSTFIX)
+ cp $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX)
+ (cd $(DL); \
+ ln -f -s $(LIBNAME).$(PNGVER).$(SHARED_POSTFIX) \
+ libpng.$(SHARED_POSTFIX); \
+ ln -f -s $(LIBNAME).$(PNGVER).$(SHARED_POSTFIX) \
+ libpng.3.$(SHARED_POSTFIX); \
+ ln -f -s $(LIBNAME).$(PNGVER).$(SHARED_POSTFIX) \
+ libpng.3.$(PNGMIN).$(SHARED_POSTFIX); \
+ ln -f -s $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
+ $(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX); \
+ ln -f -s $(LIBNAME).$(PNGMAJ).$(SHAREDLIB_POSTFIX) \
+ $(LIBNAME).$(SHAREDLIB_POSTFIX))
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -f -s $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) $(CFLAGS) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).$(PNGVER).$(SHAREDLIB_POSTFIX) \
+ $(LIBNAME).$(SHAREDLIB_POSTFIX)
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+
--- /dev/null
+# makefile for libpng
+# Copyright (C) Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+CC=cc
+CFLAGS=-I../zlib -O -systype sysv -DSYSV -w -Dmips
+#CFLAGS=-O
+LDFLAGS=-L. -L../zlib/ -lpng -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install: libpng.a
+ -@mkdir $(DESTDIR)$(INCPATH)
+ -@mkdir $(DESTDIR)$(INCPATH)/libpng
+ -@mkdir $(DESTDIR)$(LIBPATH)
+ -@rm -f $(DESTDIR)$(INCPATH)/png.h
+ -@rm -f $(DESTDIR)$(INCPATH)/pngconf.h
+ cp png.h $(DESTDIR)$(INCPATH)/libpng
+ cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
+ (cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)
+ cp libpng.a $(DESTDIR)$(LIBPATH)
+ chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
+
+clean:
+ rm -f *.o libpng.a pngtest pngout.png
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng for NetBSD for the standard
+# make obj && make depend && make && make test
+# make includes && make install
+# Copyright (C) 2002 Patrick R.L. Welche
+# For conditions of distribution and use, see copyright notice in png.h
+
+# You should also run makefile.netbsd
+
+LOCALBASE?=/usr/local
+LIBDIR= ${LOCALBASE}/lib
+MANDIR= ${LOCALBASE}/man
+INCSDIR=${LOCALBASE}/include/libpng12
+
+LIB= png12
+SHLIB_MAJOR= 0
+SHLIB_MINOR= 1.2.4
+SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
+ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
+ pngwtran.c pngmem.c pngerror.c pngpread.c
+INCS= png.h pngconf.h
+MAN= libpng.3 libpngpf.3 png.5
+
+CPPFLAGS+=-I${.CURDIR} -DPNG_USE_PNGGCCRD
+
+# something like this for mmx assembler, but it core dumps for me at the moment
+# .if ${MACHINE_ARCH} == "i386"
+# CPPFLAGS+=-DPNG_THREAD_UNSAFE_OK
+# MKLINT= no
+# .else
+ CPPFLAGS+=-DPNG_NO_ASSEMBLER_CODE
+# .endif
+
+CLEANFILES+=pngtest.o pngtest
+
+pngtest.o: pngtest.c
+ ${CC} -c ${CPPFLAGS} ${CFLAGS} ${.ALLSRC} -o ${.TARGET}
+
+pngtest: pngtest.o libpng.a
+ ${CC} ${LDFLAGS} ${.ALLSRC} -o${.TARGET} -lz -lm
+
+test: pngtest
+ cd ${.CURDIR} && ${.OBJDIR}/pngtest
+
+.include <bsd.lib.mk>
--- /dev/null
+# makefile for libpng for NetBSD for the standard
+# make obj && make depend && make && make test
+# make includes && make install
+# Copyright (C) 2002 Patrick R.L. Welche
+# For conditions of distribution and use, see copyright notice in png.h
+
+# You should also run makefile.ne0bsd
+
+LOCALBASE?=/usr/local
+LIBDIR= ${LOCALBASE}/lib
+MANDIR= ${LOCALBASE}/man
+INCSDIR=${LOCALBASE}/include/libpng
+
+LIB= png
+SHLIB_MAJOR= 3
+SHLIB_MINOR= 1.2.4
+SRCS= pnggccrd.c png.c pngset.c pngget.c pngrutil.c pngtrans.c pngwutil.c \
+ pngread.c pngrio.c pngwio.c pngwrite.c pngrtran.c \
+ pngwtran.c pngmem.c pngerror.c pngpread.c
+INCS= png.h pngconf.h
+MAN= libpng.3 libpngpf.3 png.5
+
+CPPFLAGS+=-I${.CURDIR} -DPNG_USE_PNGGCCRD
+
+# something like this for mmx assembler, but it core dumps for me at the moment
+# .if ${MACHINE_ARCH} == "i386"
+# CPPFLAGS+=-DPNG_THREAD_UNSAFE_OK
+# MKLINT= no
+# .else
+ CPPFLAGS+=-DPNG_NO_ASSEMBLER_CODE
+# .endif
+
+CLEANFILES+=pngtest.o pngtest
+
+pngtest.o: pngtest.c
+ ${CC} -c ${CPPFLAGS} ${CFLAGS} ${.ALLSRC} -o ${.TARGET}
+
+pngtest: pngtest.o libpng.a
+ ${CC} ${LDFLAGS} ${.ALLSRC} -o${.TARGET} -lz -lm
+
+test: pngtest
+ cd ${.CURDIR} && ${.OBJDIR}/pngtest
+
+.include <bsd.lib.mk>
--- /dev/null
+# makefile for libpng
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+PREFIX?= /usr/local
+LIBDIR= ${PREFIX}/lib
+MANDIR= ${PREFIX}/man/cat
+
+SHLIB_MAJOR= 0
+SHLIB_MINOR= 1.2.4
+
+LIB= png
+SRCS= png.c pngerror.c pnggccrd.c pngget.c pngmem.c pngpread.c \
+ pngread.c pngrio.c pngrtran.c pngrutil.c pngset.c pngtrans.c \
+ pngwio.c pngwrite.c pngwtran.c pngwutil.c
+
+HDRS= png.h pngconf.h
+
+CFLAGS+= -Wall
+CPPFLAGS+= -I${.CURDIR} -DPNG_NO_ASSEMBLER_CODE -DPNG_USE_PNGGCCRD
+
+NOPROFILE= Yes
+
+CLEANFILES+= pngtest.o pngtest
+
+MAN= libpng.3 libpngpf.3 png.5
+DOCS= ANNOUNCE CHANGES LICENSE README libpng.txt
+
+pngtest.o: pngtest.c
+ ${CC} ${CPPFLAGS} ${CFLAGS} -c ${.ALLSRC} -o ${.TARGET}
+
+pngtest: pngtest.o
+ ${CC} ${LDFLAGS} ${.ALLSRC} -o ${.TARGET} -L${.OBJDIR} -lpng -lz -lm
+
+test: pngtest
+ cd ${.OBJDIR} && env \
+ LD_LIBRARY_PATH="${.OBJDIR}" ${.OBJDIR}/pngtest
+
+beforeinstall:
+ if [ ! -d ${DESTDIR}${PREFIX}/include/libpng ]; then \
+ ${INSTALL} -d -o root -g wheel ${DESTDIR}${PREFIX}/include/libpng; \
+ fi
+ if [ ! -d ${DESTDIR}${LIBDIR} ]; then \
+ ${INSTALL} -d -o root -g wheel ${DESTDIR}${LIBDIR}; \
+ fi
+ if [ ! -d ${DESTDIR}${LIBDIR}/debug ]; then \
+ ${INSTALL} -d -o root -g wheel ${DESTDIR}${LIBDIR}/debug; \
+ fi
+ if [ ! -d ${DESTDIR}${MANDIR}3 ]; then \
+ ${INSTALL} -d -o root -g wheel ${DESTDIR}${MANDIR}3; \
+ fi
+ if [ ! -d ${DESTDIR}${MANDIR}5 ]; then \
+ ${INSTALL} -d -o root -g wheel ${DESTDIR}${MANDIR}5; \
+ fi
+ if [ ! -d ${DESTDIR}${PREFIX}/share/doc/png ]; then \
+ ${INSTALL} -d -o root -g wheel ${DESTDIR}${PREFIX}/share/doc/png; \
+ fi
+
+afterinstall:
+ @rm -f ${DESTDIR}${LIBDIR}/libpng_pic.a
+ @rm -f ${DESTDIR}${LIBDIR}/debug/libpng.a
+ @rm -f ${DESTDIR}${PREFIX}/include/png.h
+ @rm -f ${DESTDIR}${PREFIX}/include/pngconf.h
+ @rmdir ${DESTDIR}${LIBDIR}/debug 2>/dev/null || true
+ ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
+ -m ${NONBINMODE} ${HDRS} ${DESTDIR}${PREFIX}/include/libpng
+ ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
+ -m ${NONBINMODE} ${HDRS} ${DESTDIR}${PREFIX}/include
+ ${INSTALL} ${INSTALL_COPY} -o ${SHAREOWN} -g ${SHAREGRP} \
+ -m ${NONBINMODE} ${DOCS} ${DESTDIR}${PREFIX}/share/doc/png
+
+.include <bsd.lib.mk>
--- /dev/null
+# makefile for SCO OSr5 ELF and Unixware 7 with Native cc
+# Contributed by Mike Hopkirk (hops@sco.com) modified from Makefile.lnx
+# force ELF build dynamic linking, SONAME setting in lib and RPATH in app
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1998 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=cc
+
+# where make install puts libpng.a, libpng.so*, and png.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+CFLAGS= -dy -belf -I$(ZLIBINC) -O3
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng12 -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+INCPATH=$(prefix)/include/libpng
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"-belf\"; \
+ echo ldflags=\"-L$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ $(CC) -G -Wl,-h,$(LIBNAME).so.$(PNGMAJ) -o $(LIBNAME).so.$(PNGVER) \
+ $(OBJSDLL)
+
+pngtest: pngtest.o $(LIBNAME).so
+ LD_RUN_PATH=.:$(ZLIBLIB) $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ -@/bin/rm -f $(DI)/png.h
+ -@/bin/rm -f $(DI)/pngconf.h
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -f -s $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) $(CFLAGS) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti
+
+
+clean:
+ /bin/rm -f *.o libpng.a $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest pngout.png
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng.a and libpng12.so, SGI IRIX with 'cc'
+# Copyright (C) 2001-2002 Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# Where make install puts libpng.a, libpng12.so, and libpng12/png.h
+# Prefix must be a full pathname.
+
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib32
+#ZLIBINC=/usr/local/include
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+LIBNAME=libpng12
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+CC=gcc
+
+# ABI can be blank to use default for your system, -32, -o32, -n32, or -64
+# See "man abi". zlib must be built with the same ABI.
+ABI=
+
+WARNMORE= # -g -DPNG_DEBUG=5
+CFLAGS=$(ABI) -I$(ZLIBINC) -O2 $(WARNMORE) -fPIC -mabi=n32
+LDFLAGS=$(ABI) -L. -L$(ZLIBLIB) -lpng -lz -lm
+LDSHARED=cc $(ABI) -shared -soname $(LIBNAME).so.$(PNGMAJ)
+# See "man dso" for info about shared objects
+
+RANLIB=echo
+#RANLIB=ranlib
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+#LIBPATH=$(prefix)/lib32
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = pnggccrd.o png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest shared libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+shared: $(LIBNAME).so.$(PNGVER)
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > \
+ libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME) -DPNG_USE_PNGGCCRD \
+ -DPNG_NO_ASSEMBLER_CODE\"; \
+ echo cflags=\"$(ABI)\"; \
+ echo ldflags=\"-L$(LIBPATH)\"; \
+ echo rpath=\"$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJS)
+ $(LDSHARED) -o $@ $(OBJS)
+ rm -f $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)
+
+pngtest: pngtest.o libpng.a
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ echo
+ echo Testing local static library.
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -sf $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -sf $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -L$(ZLIBLIB) -rpath $(ZLIBLIB):`$(BINPATH)/libpng12-config --rpath` \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs`
+ echo
+ echo Testing installed dynamic shared library.
+ ./pngtesti pngtest.png
+
+clean:
+ rm -f *.o libpng.a pngtest pngout.png libpng.pc libpng-config \
+ $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* so_locations
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+pnggccrd.o: png.h pngconf.h
+
--- /dev/null
+# makefile for libpng on Solaris 9 (beta) with Forte cc
+# Updated by Chad Schrock for Solaris 9
+# Contributed by William L. Sebok, based on makefile.linux
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1998-2001 Greg Roelofs
+# Copyright (C) 1996-1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+# gcc 2.95 doesn't work.
+CC=cc
+
+# Where make install puts libpng.a, libpng.so*, and png.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+# Changing these to ../zlib poses a security risk. If you want
+# to have zlib in an adjacent directory, specify the full path instead of "..".
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+#Use the preinstalled zlib that comes with Solaris 9:
+ZLIBLIB=/usr/lib
+ZLIBINC=/usr/include
+
+#WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+#CFLAGS=-I$(ZLIBINC) -Wall -O3 $(WARNMORE) -g -DPNG_DEBUG=5
+CFLAGS=-I$(ZLIBINC) -O3
+LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -KPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME)\"; \
+ echo cflags=\"\"; \
+ echo ldflags=\"-L$(LIBPATH) -R$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ @case "`type ld`" in *ucb*) \
+ echo; \
+ echo '## WARNING:'; \
+ echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
+ echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
+ echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
+ echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
+ echo '## at all. If it is, things are likely to break because of'; \
+ echo '## the libucb dependency that is created.'; \
+ echo; \
+ ;; \
+ esac
+ $(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBNAME).so.$(PNGMAJ) \
+ -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL) -lz
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -f -s $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ echo
+ echo Testing installed dynamic shared library.
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs` \
+ -L$(ZLIBLIB) -R$(ZLIBLIB)
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc \
+ libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)*
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng on Solaris 2.x with gcc
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Contributed by William L. Sebok, based on makefile.linux
+# Copyright (C) 1998 Greg Roelofs
+# Copyright (C) 1996, 1997 Andreas Dilger
+# For conditions of distribution and use, see copyright notice in png.h
+
+CC=gcc
+
+# Where make install puts libpng.a, libpng12.so*, and png.h
+prefix=/usr/local
+
+# Where the zlib library and include files are located
+# Changing these to ../zlib poses a security risk. If you want
+# to have zlib in an adjacent directory, specify the full path instead of "..".
+#ZLIBLIB=../zlib
+#ZLIBINC=../zlib
+
+ZLIBLIB=/usr/local/lib
+ZLIBINC=/usr/local/include
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
+CFLAGS=-I$(ZLIBINC) -Wall -O3 \
+ # $(WARNMORE) -g -DPNG_DEBUG=5
+LDFLAGS=-L. -R. -L$(ZLIBLIB) -R$(ZLIBLIB) -lpng12 -lz -lm
+
+#RANLIB=ranlib
+RANLIB=echo
+
+PNGMAJ = 0
+PNGMIN = 1.2.4
+PNGVER = $(PNGMAJ).$(PNGMIN)
+LIBNAME = libpng12
+
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+MANPATH=$(prefix)/man
+BINPATH=$(prefix)/bin
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+DB=$(DESTDIR)$(BINPATH)
+DI=$(DESTDIR)$(INCPATH)
+DL=$(DESTDIR)$(LIBPATH)
+DM=$(DESTDIR)$(MANPATH)
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+OBJSDLL = $(OBJS:.o=.pic.o)
+
+.SUFFIXES: .c .o .pic.o
+
+.c.pic.o:
+ $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
+
+all: libpng.a $(LIBNAME).so pngtest libpng.pc libpng-config
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+libpng.pc:
+ cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
+
+libpng-config:
+ ( cat scripts/libpng-config-head.in; \
+ echo prefix=\"$(prefix)\"; \
+ echo cppflags=\"-I$(INCPATH)/$(LIBNAME) -DPNG_USE_PNGGCCRD \
+ -DPNG_NO_ASSEMBLER_CODE\"; \
+ echo cflags=\"$(ABI)\"; \
+ echo ldflags=\"-L$(LIBPATH) -R$(LIBPATH)\"; \
+ echo libs=\"-lpng12 -lz -lm\"; \
+ cat scripts/libpng-config-body.in ) > libpng-config
+ chmod +x libpng-config
+
+$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
+ ln -f -s $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
+
+$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
+
+$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
+ @case "`type ld`" in *ucb*) \
+ echo; \
+ echo '## WARNING:'; \
+ echo '## The commands "CC" and "LD" must NOT refer to /usr/ucb/cc'; \
+ echo '## and /usr/ucb/ld. If they do, you need to adjust your PATH'; \
+ echo '## environment variable to put /usr/ccs/bin ahead of /usr/ucb.'; \
+ echo '## The environment variable LD_LIBRARY_PATH should not be set'; \
+ echo '## at all. If it is, things are likely to break because of'; \
+ echo '## the libucb dependency that is created.'; \
+ echo; \
+ ;; \
+ esac
+ $(LD) -G -L$(ZLIBLIB) -R$(ZLIBLIB) -h $(LIBNAME).so.$(PNGMAJ) \
+ -o $(LIBNAME).so.$(PNGVER) $(OBJSDLL) -lz
+
+pngtest: pngtest.o $(LIBNAME).so
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install-headers: png.h pngconf.h
+ -@if [ ! -d $(DI) ]; then mkdir $(DI); fi
+ -@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
+ cp png.h pngconf.h $(DI)/$(LIBNAME)
+ chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
+ -@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
+ -@/bin/rm -f $(DI)/libpng
+ (cd $(DI); ln -f -s $(LIBNAME) libpng; ln -f -s $(LIBNAME)/* .)
+
+install-static: install-headers libpng.a
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ cp libpng.a $(DL)/$(LIBNAME).a
+ chmod 644 $(DL)/$(LIBNAME).a
+ -@/bin/rm -f $(DL)/libpng.a
+ (cd $(DL); ln -f -s $(LIBNAME).a libpng.a)
+
+install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc
+ -@if [ ! -d $(DL) ]; then mkdir $(DL); fi
+ -@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)* $(DL)/$(LIBNAME).so
+ -@/bin/rm -f $(DL)/libpng.so
+ -@/bin/rm -f $(DL)/libpng.so.3
+ -@/bin/rm -f $(DL)/libpng.so.3.*
+ cp $(LIBNAME).so.$(PNGVER) $(DL)
+ chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
+ (cd $(DL); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) libpng.so.3.$(PNGMIN); \
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so; \
+ ln -f -s $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ))
+ -@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
+ -@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
+ -@/bin/rm -f $(DL)/pkgconfig/libpng.pc
+ cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
+ chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
+ (cd $(DL)/pkgconfig; ln -f -s $(LIBNAME).pc libpng.pc)
+
+install-man: libpng.3 libpngpf.3 png.5
+ -@if [ ! -d $(DM) ]; then mkdir $(DM); fi
+ -@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
+ -@/bin/rm -f $(DM)/man3/libpng.3
+ -@/bin/rm -f $(DM)/man3/libpngpf.3
+ cp libpng.3 $(DM)/man3
+ cp libpngpf.3 $(DM)/man3
+ -@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
+ -@/bin/rm -f $(DM)/man5/png.5
+ cp png.5 $(DM)/man5
+
+install-config: libpng-config
+ -@if [ ! -d $(DB) ]; then mkdir $(DB); fi
+ -@/bin/rm -f $(DB)/libpng-config
+ -@/bin/rm -f $(DB)/$(LIBNAME)-config
+ cp libpng-config $(DB)/$(LIBNAME)-config
+ chmod 755 $(DB)/$(LIBNAME)-config
+ (cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
+
+install: install-static install-shared install-man install-config
+
+# If you installed in $(DESTDIR), test-installed won't work until you
+# move the library to its final location.
+
+test-installed:
+ echo
+ echo Testing installed dynamic shared library.
+ $(CC) -I$(ZLIBINC) \
+ `$(BINPATH)/libpng12-config --cppflags --cflags` pngtest.c \
+ -o pngtesti `$(BINPATH)/libpng12-config --ldflags --libs` \
+ -L$(ZLIBLIB) -R$(ZLIBLIB)
+ ./pngtesti pngtest.png
+
+clean:
+ /bin/rm -f *.o libpng.a pngtest pngtesti pngout.png libpng.pc \
+ libpng-config $(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)*
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o png.pic.o: png.h pngconf.h
+pngerror.o pngerror.pic.o: png.h pngconf.h
+pngrio.o pngrio.pic.o: png.h pngconf.h
+pngwio.o pngwio.pic.o: png.h pngconf.h
+pngmem.o pngmem.pic.o: png.h pngconf.h
+pngset.o pngset.pic.o: png.h pngconf.h
+pngget.o pngget.pic.o: png.h pngconf.h
+pngread.o pngread.pic.o: png.h pngconf.h
+pngrtran.o pngrtran.pic.o: png.h pngconf.h
+pngrutil.o pngrutil.pic.o: png.h pngconf.h
+pngtrans.o pngtrans.pic.o: png.h pngconf.h
+pngwrite.o pngwrite.pic.o: png.h pngconf.h
+pngwtran.o pngwtran.pic.o: png.h pngconf.h
+pngwutil.o pngwutil.pic.o: png.h pngconf.h
+pngpread.o pngpread.pic.o: png.h pngconf.h
+
+pngtest.o: png.h pngconf.h
--- /dev/null
+# makefile for libpng
+# Copyright (C) 2002 Glenn Randers-Pehrson
+# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# where make install puts libpng.a and png.h
+prefix=/usr/local
+INCPATH=$(prefix)/include
+LIBPATH=$(prefix)/lib
+
+# override DESTDIR= on the make install command line to easily support
+# installing into a temporary location. Example:
+#
+# make install DESTDIR=/tmp/build/libpng
+#
+# If you're going to install into a temporary location
+# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
+# you execute make install.
+DESTDIR=
+
+# Where the zlib library and include files are located
+#ZLIBLIB=/usr/local/lib
+#ZLIBINC=/usr/local/include
+ZLIBLIB=../zlib
+ZLIBINC=../zlib
+
+
+WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow -Wconversion \
+ -Wmissing-declarations -Wtraditional -Wcast-align \
+ -Wstrict-prototypes -Wmissing-prototypes
+CC=gcc
+CFLAGS=-I$(ZLIBINC) -O # $(WARNMORE) -DPNG_DEBUG=5
+LDFLAGS=-L. -L$(ZLIBLIB) -lpng -lz -lm
+
+RANLIB=ranlib
+#RANLIB=echo
+
+OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
+ pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
+ pngwtran.o pngmem.o pngerror.o pngpread.o
+
+all: libpng.a pngtest
+
+libpng.a: $(OBJS)
+ ar rc $@ $(OBJS)
+ $(RANLIB) $@
+
+pngtest: pngtest.o libpng.a
+ $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
+
+test: pngtest
+ ./pngtest
+
+install: libpng.a
+ -@mkdir $(DESTDIR)$(INCPATH)
+ -@mkdir $(DESTDIR)$(INCPATH)/libpng
+ -@mkdir $(DESTDIR)$(LIBPATH)
+ -@rm -f $(DESTDIR)$(INCPATH)/png.h
+ -@rm -f $(DESTDIR)$(INCPATH)/pngconf.h
+ cp png.h $(DESTDIR)$(INCPATH)/libpng
+ cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
+ chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
+ (cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)
+ cp libpng.a $(DESTDIR)$(LIBPATH)
+ chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
+
+clean:
+ rm -f *.o libpng.a pngtest pngout.png
+
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+writelock:
+ chmod a-w *.[ch35] $(DOCS) scripts/*
+
+# DO NOT DELETE THIS LINE -- make depend depends on it.
+
+png.o: png.h pngconf.h
+pngerror.o: png.h pngconf.h
+pngrio.o: png.h pngconf.h
+pngwio.o: png.h pngconf.h
+pngmem.o: png.h pngconf.h
+pngset.o: png.h pngconf.h
+pngget.o: png.h pngconf.h
+pngread.o: png.h pngconf.h
+pngrtran.o: png.h pngconf.h
+pngrutil.o: png.h pngconf.h
+pngtest.o: png.h pngconf.h
+pngtrans.o: png.h pngconf.h
+pngwrite.o: png.h pngconf.h
+pngwtran.o: png.h pngconf.h
+pngwutil.o: png.h pngconf.h
+pngpread.o: png.h pngconf.h
+
--- /dev/null
+# makefile for libpng
+# Copyright (C) 1998 Tim Wegner
+# For conditions of distribution and use, see copyright notice in png.h
+# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
+# To use, do "nmake /f scripts\makefile.vcawin32"
+
+# -------- Microsoft Visual C++ 5.0 and later, uses assembler code --------
+
+# Caution: the assembler code was introduced at libpng version 1.0.4 and has
+# not yet been thoroughly tested.
+
+# If you don't want to use assembler code, use makefile.vcwin32 instead.
+
+CFLAGS=-DPNG_USE_PNGVCRD -Ox -GA3s -nologo -W3 -I..\zlib
+
+CC=cl
+LD=link
+LDFLAGS=
+O=.obj
+
+#uncomment next to put error messages in a file
+#ERRFILE= >> pngerrs
+
+# variables
+OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
+OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
+OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O) pngvcrd$(O)
+
+all: libpng.lib
+
+png$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngset$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngget$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngread$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngpread$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrtran$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrutil$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngvcrd$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngerror$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngmem$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrio$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwio$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngtest$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngtrans$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwrite$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwtran$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwutil$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
+ echo something to del > libpng.lib
+ del libpng.lib
+ lib /OUT:libpng.lib $(OBJS1) $(OBJS2) $(OBJS3)
+
+pngtest.exe: pngtest.obj libpng.lib
+ $(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib /OUT:pngtest.exe /SUBSYSTEM:CONSOLE
+
+test: pngtest.exe
+ pngtest
+
+# End of makefile for libpng
+
--- /dev/null
+# makefile for libpng
+# Copyright (C) 1998 Tim Wegner
+# For conditions of distribution and use, see copyright notice in png.h
+# Assumes that zlib.lib, zconf.h, and zlib.h have been copied to ..\zlib
+# To use, do "nmake /f scripts\makefile.vcwin32"
+
+# -------- Microsoft Visual C++ 4.0 and later, no assembler code --------
+# If you want to use assembler code, use makefile.vcawin32 instead.
+
+CFLAGS= -Ox -GA3s -nologo -W3 -I..\zlib
+
+CC=cl
+LD=link
+LDFLAGS=
+O=.obj
+
+#uncomment next to put error messages in a file
+#ERRFILE= >> pngerrs
+
+# variables
+OBJS1 = png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
+OBJS2 = pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
+OBJS3 = pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
+
+all: libpng.lib
+
+png$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngset$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngget$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngread$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngpread$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrtran$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrutil$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngerror$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngmem$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngrio$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwio$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngtest$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngtrans$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwrite$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwtran$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+pngwutil$(O): png.h pngconf.h
+ $(CC) -c $(CFLAGS) $*.c $(ERRFILE)
+
+libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
+ echo something to del > libpng.lib
+ del libpng.lib
+ lib /OUT:libpng.lib $(OBJS1) $(OBJS2) $(OBJS3)
+
+pngtest.exe: pngtest.obj libpng.lib
+ $(LD) $(LDFLAGS) pngtest.obj libpng.lib ..\zlib\zlib.lib /OUT:pngtest.exe /SUBSYSTEM:CONSOLE
+
+test: pngtest.exe
+ pngtest
+
+# End of makefile for libpng
+
--- /dev/null
+# Makefile for libpng
+# Watcom C/C++ 10.0 and later, 32-bit protected mode, flat memory model
+
+# Copyright (C) 2000, Pawel Mrochen, based on makefile.msc which is
+# copyright 1995 Guy Eric Schalnat, Group 42, Inc.
+# For conditions of distribution and use, see copyright notice in png.h
+
+# To use, do "wmake /f scripts\makefile.watcom"
+
+
+# ---------------------- Watcom C/C++ 10.0 and later -----------------------
+
+# Where the zlib library and include files are located
+ZLIBLIB=..\zlib
+ZLIBINC=..\zlib
+
+# Target OS
+OS=DOS
+#OS=NT
+
+# Target CPU
+CPU=6 # Pentium Pro
+#CPU=5 # Pentium
+
+# Calling convention
+CALLING=r # registers
+#CALLING=s # stack
+
+# Uncomment next to put error messages in a file
+#ERRFILE=>>pngerrs
+
+# --------------------------------------------------------------------------
+
+
+CC=wcc386
+CFLAGS=-$(CPU)$(CALLING) -fp$(CPU) -fpi87 -oneatx -mf -bt=$(OS) -i=$(ZLIBINC) -zq
+LD=wcl386
+LDFLAGS=-zq
+
+O=.obj
+
+OBJS1=png$(O) pngset$(O) pngget$(O) pngrutil$(O) pngtrans$(O) pngwutil$(O)
+OBJS2=pngmem$(O) pngpread$(O) pngread$(O) pngerror$(O) pngwrite$(O)
+OBJS3=pngrtran$(O) pngwtran$(O) pngrio$(O) pngwio$(O)
+
+
+all: test
+
+png$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngset$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngget$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngread$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngpread$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrtran$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrutil$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngerror$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngmem$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngrio$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwio$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngtest$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngtrans$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwrite$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwtran$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+pngwutil$(O): png.h pngconf.h
+ $(CC) $(CFLAGS) $*.c $(ERRFILE)
+
+libpng.lib: $(OBJS1) $(OBJS2) $(OBJS3)
+ wlib -b -c -n -q libpng.lib $(OBJS1)
+ wlib -b -c -q libpng.lib $(OBJS2)
+ wlib -b -c -q libpng.lib $(OBJS3)
+
+pngtest.exe: pngtest.obj libpng.lib
+ $(LD) $(LDFLAGS) pngtest.obj libpng.lib $(ZLIBLIB)\zlib.lib
+
+test: pngtest.exe .symbolic
+ pngtest.exe
+
+
+# End of makefile for libpng
--- /dev/null
+unit pngdef;
+
+// Caution: this file has fallen out of date since version 1.0.5. Write to
+// png-implement@ccrc.wustl.edu or to randeg@alum.rpi.edu about volunteering
+// to it up to date.
+
+interface
+
+const
+ PNG_LIBPNG_VER_STRING = '1.2.4';
+ PNG_LIBPNG_VER = 10204;
+
+type
+ png_uint_32 = Cardinal;
+ png_int_32 = Longint;
+ png_uint_16 = Word;
+ png_int_16 = Smallint;
+ png_byte = Byte;
+ png_size_t = png_uint_32;
+ png_charpp = ^png_charp;
+ png_charp = PChar;
+ float = single;
+ int = Integer;
+ png_bytepp = ^png_bytep;
+ png_bytep = ^png_byte;
+ png_uint_16p = ^png_uint_16;
+ png_uint_16pp = ^png_uint_16p;
+ png_voidp = pointer;
+ time_t = Longint;
+ png_doublep = ^png_double;
+ png_double = double;
+
+ user_error_ptr = Pointer;
+ png_error_ptrp = ^png_error_ptr;
+ png_error_ptr = procedure(png_ptr: Pointer; msg: Pointer);
+ stdcall;
+ png_rw_ptrp = ^png_rw_ptr;
+ png_rw_ptr = procedure(png_ptr: Pointer; data: Pointer;
+ length: png_size_t);
+ stdcall;
+ png_flush_ptrp = ^png_flush_ptr;
+ png_flush_ptr = procedure(png_ptr: Pointer);
+ stdcall;
+ png_progressive_info_ptrp = ^png_progressive_info_ptr;
+ png_progressive_info_ptr = procedure(png_ptr: Pointer;
+ info_ptr: Pointer);
+ stdcall;
+ png_progressive_end_ptrp = ^png_progressive_end_ptr;
+ png_progressive_end_ptr = procedure(png_ptr: Pointer;
+ info_ptr: Pointer);
+ stdcall;
+ png_progressive_row_ptrp = ^png_progressive_row_ptr;
+ png_progressive_row_ptr = procedure(png_ptr: Pointer;
+ data: Pointer; length: png_uint_32;
+ count: int);
+ stdcall;
+ png_read_status_ptr = procedure(png_ptr: Pointer;
+ row_number: png_uint_32; pass: int);
+ stdcall;
+ png_write_status_ptr = procedure(png_ptr: Pointer;
+ row_number: png_uint_32; pass: int);
+ stdcall;
+ png_user_chunk_ptr = procedure(png_ptr: Pointer;
+ data: png_unknown_chunkp);
+ stdcall;
+ png_user_transform_ptr = procedure(png_ptr: Pointer;
+ row_info: Pointer; data: png_bytep);
+ stdcall;
+
+ png_colorpp = ^png_colorp;
+ png_colorp = ^png_color;
+ png_color = packed record
+ red, green, blue: png_byte;
+ end;
+
+ png_color_16pp = ^png_color_16p;
+ png_color_16p = ^png_color_16;
+ png_color_16 = packed record
+ index: png_byte; //used for palette files
+ red, green, blue: png_uint_16; //for use in red green blue files
+ gray: png_uint_16; //for use in grayscale files
+ end;
+
+ png_color_8pp = ^png_color_8p;
+ png_color_8p = ^png_color_8;
+ png_color_8 = packed record
+ red, green, blue: png_byte; //for use in red green blue files
+ gray: png_byte; //for use in grayscale files
+ alpha: png_byte; //for alpha channel files
+ end;
+
+ png_textpp = ^png_textp;
+ png_textp = ^png_text;
+ png_text = packed record
+ compression: int; //compression value
+ key: png_charp; //keyword, 1-79 character description of "text"
+ text: png_charp; //comment, may be empty ("")
+ text_length: png_size_t; //length of text field
+ end;
+
+ png_timepp = ^png_timep;
+ png_timep = ^png_time;
+ png_time = packed record
+ year: png_uint_16; //yyyy
+ month: png_byte; //1..12
+ day: png_byte; //1..31
+ hour: png_byte; //0..23
+ minute: png_byte; //0..59
+ second: png_byte; //0..60 (leap seconds)
+ end;
+
+ png_infopp = ^png_infop;
+ png_infop = Pointer;
+
+ png_row_infopp = ^png_row_infop;
+ png_row_infop = ^png_row_info;
+ png_row_info = packed record
+ width: png_uint_32; //width of row
+ rowbytes: png_size_t; //number of bytes in row
+ color_type: png_byte; //color type of row
+ bit_depth: png_byte; //bit depth of row
+ channels: png_byte; //number of channels (1, 2, 3, or 4)
+ pixel_depth: png_byte; //bits per pixel (depth * channels)
+ end;
+
+ png_structpp = ^png_structp;
+ png_structp = Pointer;
+
+const
+
+// Supported compression types for text in PNG files (tEXt, and zTXt).
+// The values of the PNG_TEXT_COMPRESSION_ defines should NOT be changed.
+
+ PNG_TEXT_COMPRESSION_NONE_WR = -3;
+ PNG_TEXT_COMPRESSION_zTXt_WR = -2;
+ PNG_TEXT_COMPRESSION_NONE = -1;
+ PNG_TEXT_COMPRESSION_zTXt = 0;
+
+// These describe the color_type field in png_info.
+// color type masks
+
+ PNG_COLOR_MASK_PALETTE = 1;
+ PNG_COLOR_MASK_COLOR = 2;
+ PNG_COLOR_MASK_ALPHA = 4;
+
+// color types. Note that not all combinations are legal
+
+ PNG_COLOR_TYPE_GRAY = 0;
+ PNG_COLOR_TYPE_PALETTE = PNG_COLOR_MASK_COLOR or
+ PNG_COLOR_MASK_PALETTE;
+ PNG_COLOR_TYPE_RGB = PNG_COLOR_MASK_COLOR;
+ PNG_COLOR_TYPE_RGB_ALPHA = PNG_COLOR_MASK_COLOR or
+ PNG_COLOR_MASK_ALPHA;
+ PNG_COLOR_TYPE_GRAY_ALPHA = PNG_COLOR_MASK_ALPHA;
+
+// This is for compression type. PNG 1.0 only defines the single type.
+
+ PNG_COMPRESSION_TYPE_BASE = 0; // Deflate method 8, 32K window
+ PNG_COMPRESSION_TYPE_DEFAULT = PNG_COMPRESSION_TYPE_BASE;
+
+// This is for filter type. PNG 1.0 only defines the single type.
+
+ PNG_FILTER_TYPE_BASE = 0; // Single row per-byte filtering
+ PNG_FILTER_TYPE_DEFAULT = PNG_FILTER_TYPE_BASE;
+
+// These are for the interlacing type. These values should NOT be changed.
+
+ PNG_INTERLACE_NONE = 0; // Non-interlaced image
+ PNG_INTERLACE_ADAM7 = 1; // Adam7 interlacing
+
+// These are for the oFFs chunk. These values should NOT be changed.
+
+ PNG_OFFSET_PIXEL = 0; // Offset in pixels
+ PNG_OFFSET_MICROMETER = 1; // Offset in micrometers (1/10^6 meter)
+
+// These are for the pCAL chunk. These values should NOT be changed.
+
+ PNG_EQUATION_LINEAR = 0; // Linear transformation
+ PNG_EQUATION_BASE_E = 1; // Exponential base e transform
+ PNG_EQUATION_ARBITRARY = 2; // Arbitrary base exponential transform
+ PNG_EQUATION_HYPERBOLIC = 3; // Hyperbolic sine transformation
+
+// These are for the pHYs chunk. These values should NOT be changed.
+
+ PNG_RESOLUTION_UNKNOWN = 0; // pixels/unknown unit (aspect ratio)
+ PNG_RESOLUTION_METER = 1; // pixels/meter
+
+// These are for the sRGB chunk. These values should NOT be changed.
+ PNG_sRGB_INTENT_PERCEPTUAL = 0;
+ PNG_sRGB_INTENT_RELATIVE = 1;
+ PNG_sRGB_INTENT_SATURATION = 2;
+ PNG_sRGB_INTENT_ABSOLUTE = 3;
+
+// Handle alpha and tRNS by replacing with a background color.
+ PNG_BACKGROUND_GAMMA_UNKNOWN = 0;
+ PNG_BACKGROUND_GAMMA_SCREEN = 1;
+ PNG_BACKGROUND_GAMMA_FILE = 2;
+ PNG_BACKGROUND_GAMMA_UNIQUE = 3;
+
+// Values for png_set_crc_action() to say how to handle CRC errors in
+// ancillary and critical chunks, and whether to use the data contained
+// therein. Note that it is impossible to "discard" data in a critical
+// chunk. For versions prior to 0.90, the action was always error/quit,
+// whereas in version 0.90 and later, the action for CRC errors in ancillary
+// chunks is warn/discard. These values should NOT be changed.
+
+// value action:critical action:ancillary
+
+ PNG_CRC_DEFAULT = 0; // error/quit warn/discard data
+ PNG_CRC_ERROR_QUIT = 1; // error/quit error/quit
+ PNG_CRC_WARN_DISCARD = 2; // (INVALID) warn/discard data
+ PNG_CRC_WARN_USE = 3; // warn/use data warn/use data
+ PNG_CRC_QUIET_USE = 4; // quiet/use data quiet/use data
+ PNG_CRC_NO_CHANGE = 5; // use current value use current value
+
+// Flags for png_set_filter() to say which filters to use. The flags
+// are chosen so that they don't conflict with real filter types
+// below, in case they are supplied instead of the #defined constants.
+// These values should NOT be changed.
+
+ PNG_NO_FILTERS = $00;
+ PNG_FILTER_NONE = $08;
+ PNG_FILTER_SUB = $10;
+ PNG_FILTER_UP = $20;
+ PNG_FILTER_AVG = $40;
+ PNG_FILTER_PAETH = $80;
+ PNG_ALL_FILTERS = PNG_FILTER_NONE or PNG_FILTER_SUB or
+ PNG_FILTER_UP or PNG_FILTER_AVG or
+ PNG_FILTER_PAETH;
+
+// Filter values (not flags) - used in pngwrite.c, pngwutil.c for now.
+// These defines should NOT be changed.
+
+ PNG_FILTER_VALUE_NONE = 0;
+ PNG_FILTER_VALUE_SUB = 1;
+ PNG_FILTER_VALUE_UP = 2;
+ PNG_FILTER_VALUE_AVG = 3;
+ PNG_FILTER_VALUE_PAETH = 4;
+
+// Heuristic used for row filter selection. These defines should NOT be
+// changed.
+
+ PNG_FILTER_HEURISTIC_DEFAULT = 0; // Currently "UNWEIGHTED"
+ PNG_FILTER_HEURISTIC_UNWEIGHTED = 1; // Used by libpng < 0.95
+ PNG_FILTER_HEURISTIC_WEIGHTED = 2; // Experimental feature
+ PNG_FILTER_HEURISTIC_LAST = 3; // Not a valid value
+
+procedure png_build_grayscale_palette(bit_depth: int; palette: png_colorp);
+ stdcall;
+function png_check_sig(sig: png_bytep; num: int): int;
+ stdcall;
+procedure png_chunk_error(png_ptr: png_structp;
+ const mess: png_charp);
+ stdcall;
+procedure png_chunk_warning(png_ptr: png_structp;
+ const mess: png_charp);
+ stdcall;
+procedure png_convert_from_time_t(ptime: png_timep; ttime: time_t);
+ stdcall;
+function png_convert_to_rfc1123(png_ptr: png_structp; ptime: png_timep):
+ png_charp;
+ stdcall;
+function png_create_info_struct(png_ptr: png_structp): png_infop;
+ stdcall;
+function png_create_read_struct(user_png_ver: png_charp;
+ error_ptr: user_error_ptr; error_fn: png_error_ptr;
+ warn_fn: png_error_ptr): png_structp;
+ stdcall;
+function png_get_copyright(png_ptr: png_structp): png_charp;
+ stdcall;
+function png_get_header_ver(png_ptr: png_structp): png_charp;
+ stdcall;
+function png_get_header_version(png_ptr: png_structp): png_charp;
+ stdcall;
+function png_get_libpng_ver(png_ptr: png_structp): png_charp;
+ stdcall;
+function png_create_write_struct(user_png_ver: png_charp;
+ error_ptr: user_error_ptr; error_fn: png_error_ptr;
+ warn_fn: png_error_ptr): png_structp;
+ stdcall;
+procedure png_destroy_info_struct(png_ptr: png_structp;
+ info_ptr_ptr: png_infopp);
+ stdcall;
+procedure png_destroy_read_struct(png_ptr_ptr: png_structpp;
+ info_ptr_ptr, end_info_ptr_ptr: png_infopp);
+ stdcall;
+procedure png_destroy_write_struct(png_ptr_ptr: png_structpp;
+ info_ptr_ptr: png_infopp);
+ stdcall;
+function png_get_IHDR(png_ptr: png_structp; info_ptr: png_infop;
+ var width, height: png_uint_32; var bit_depth,
+ color_type, interlace_type, compression_type,
+ filter_type: int): png_uint_32;
+ stdcall;
+function png_get_PLTE(png_ptr: png_structp; info_ptr: png_infop;
+ var palette: png_colorp; var num_palette: int):
+ png_uint_32;
+ stdcall;
+function png_get_bKGD(png_ptr: png_structp; info_ptr: png_infop;
+ var background: png_color_16p): png_uint_32;
+ stdcall;
+function png_get_bit_depth(png_ptr: png_structp; info_ptr: png_infop):
+ png_byte;
+ stdcall;
+function png_get_cHRM(png_ptr: png_structp; info_ptr: png_infop;
+ var white_x, white_y, red_x, red_y, green_x, green_y,
+ blue_x, blue_y: double): png_uint_32;
+ stdcall;
+function png_get_channels(png_ptr: png_structp; info_ptr: png_infop):
+ png_byte;
+ stdcall;
+function png_get_color_type(png_ptr: png_structp; info_ptr: png_infop):
+ png_byte;
+ stdcall;
+function png_get_compression_type(png_ptr: png_structp;
+ info_ptr: png_infop): png_byte;
+ stdcall;
+function png_get_error_ptr(png_ptr: png_structp): png_voidp;
+ stdcall;
+function png_get_filter_type(png_ptr: png_structp; info_ptr: png_infop):
+ png_byte;
+ stdcall;
+function png_get_gAMA(png_ptr: png_structp; info_ptr: png_infop;
+ var file_gamma: double): png_uint_32;
+ stdcall;
+function png_get_hIST(png_ptr: png_structp; info_ptr: png_infop;
+ var hist: png_uint_16p): png_uint_32;
+ stdcall;
+function png_get_image_height(png_ptr: png_structp; info_ptr: png_infop):
+ png_uint_32;
+ stdcall;
+function png_get_image_width(png_ptr: png_structp; info_ptr: png_infop):
+ png_uint_32;
+ stdcall;
+function png_get_interlace_type(png_ptr: png_structp;
+ info_ptr: png_infop): png_byte;
+ stdcall;
+function png_get_io_ptr(png_ptr: png_structp): png_voidp;
+ stdcall;
+function png_get_oFFs(png_ptr: png_structp; info_ptr: png_infop;
+ var offset_x, offset_y: png_uint_32;
+ var unit_type: int): png_uint_32;
+ stdcall;
+function png_get_sCAL(png_ptr: png_structp; info_ptr: png_infop;
+ var unit:int; var width: png_uint_32; height: png_uint_32):
+ png_uint_32;
+ stdcall
+function png_get_pCAL(png_ptr: png_structp; info_ptr: png_infop;
+ var purpose: png_charp; var X0, X1: png_int_32;
+ var typ, nparams: int; var units: png_charp;
+ var params: png_charpp): png_uint_32;
+ stdcall;
+function png_get_pHYs(png_ptr: png_structp; info_ptr: png_infop;
+ var res_x, res_y: png_uint_32; var unit_type: int):
+ png_uint_32;
+ stdcall;
+function png_get_pixel_aspect_ratio(png_ptr: png_structp;
+ info_ptr: png_infop): float;
+ stdcall;
+function png_get_pixels_per_meter(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+function png_get_progressive_ptr(png_ptr: png_structp): png_voidp;
+ stdcall;
+function png_get_rgb_to_gray_status(png_ptr: png_structp);
+ stdcall;
+function png_get_rowbytes(png_ptr: png_structp; info_ptr: png_infop):
+ png_uint_32;
+ stdcall;
+function png_get_rows(png_ptr: png_structp; info_ptr: png_infop):
+ png_bytepp;
+ stdcall;
+function png_get_sBIT(png_ptr: png_structp; info_ptr: png_infop;
+ var sig_bits: png_color_8p): png_uint_32;
+ stdcall;
+function png_get_sRGB(png_ptr: png_structp; info_ptr: png_infop;
+ var file_srgb_intent: int): png_uint_32;
+ stdcall;
+function png_get_signature(png_ptr: png_structp; info_ptr: png_infop):
+ png_bytep;
+ stdcall;
+function png_get_tIME(png_ptr: png_structp; info_ptr: png_infop;
+ var mod_time: png_timep): png_uint_32;
+ stdcall;
+function png_get_tRNS(png_ptr: png_structp; info_ptr: png_infop;
+ var trans: png_bytep; var num_trans: int;
+ var trans_values: png_color_16p): png_uint_32;
+ stdcall;
+function png_get_text(png_ptr: png_structp; info_ptr: png_infop;
+ var text_ptr: png_textp; var num_text: int):
+ png_uint_32;
+ stdcall;
+function png_get_user_chunk_ptr(png_ptr: png_structp):
+ png_voidp;
+ stdcall;
+function png_get_valid(png_ptr: png_structp; info_ptr: png_infop;
+ flag: png_uint_32): png_uint_32;
+ stdcall;
+function png_get_x_offset_microns(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+function png_get_x_offset_pixels(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+function png_get_x_pixels_per_meter(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+function png_get_y_offset_microns(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+function png_get_y_offset_pixels(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+function png_get_y_pixels_per_meter(png_ptr: png_structp;
+ info_ptr: png_infop): png_uint_32;
+ stdcall;
+procedure png_process_data(png_ptr: png_structp; info_ptr: png_infop;
+ buffer: png_bytep; buffer_size: png_size_t);
+ stdcall;
+procedure png_progressive_combine_row(png_ptr: png_structp;
+ old_row, new_row: png_bytep);
+ stdcall;
+procedure png_read_end(png_ptr: png_structp; info_ptr: png_infop);
+ stdcall;
+procedure png_read_image(png_ptr: png_structp; image: png_bytepp);
+ stdcall;
+procedure png_read_info(png_ptr: png_structp; info_ptr: png_infop);
+ stdcall;
+procedure png_read_row(png_ptr: png_structp; row, dsp_row: png_bytep);
+ stdcall;
+procedure png_read_rows(png_ptr: png_structp; row, display_row:
+ png_bytepp; num_rows: png_uint_32);
+ stdcall;
+procedure png_read_update_info(png_ptr: png_structp; info_ptr: png_infop);
+ stdcall;
+procedure png_set_IHDR(png_ptr: png_structp; info_ptr: png_infop;
+ width, height: png_uint_32; bit_depth, color_type,
+ interlace_type, compression_type, filter_type: int);
+ stdcall;
+procedure png_set_PLTE(png_ptr: png_structp; info_ptr: png_infop;
+ palette: png_colorp; num_palette: int);
+ stdcall;
+procedure png_set_bKGD(png_ptr: png_structp; info_ptr: png_infop;
+ background: png_color_16p);
+ stdcall;
+procedure png_set_background(png_ptr: png_structp;
+ background_color: png_color_16p;
+ background_gamma_code, need_expand: int;
+ background_gamma: double);
+ stdcall;
+procedure png_set_bgr(png_ptr: png_structp);
+ stdcall;
+procedure png_set_cHRM(png_ptr: png_structp; info_ptr: png_infop;
+ white_x, white_y, red_x, red_y, green_x, green_y,
+ blue_x, blue_y: double);
+ stdcall;
+procedure png_set_cHRM_fixed(png_ptr: png_structp; info_ptr: png_infop;
+ white_x, white_y, red_x, red_y, green_x, green_y,
+ blue_x, blue_y: png_fixed_point);
+ stdcall;
+procedure png_set_compression_level(png_ptr: png_structp; level: int);
+ stdcall;
+procedure png_set_compression_mem_level(png_ptr: png_structp;
+ mem_level: int);
+ stdcall;
+procedure png_set_compression_method(png_ptr: png_structp; method: int);
+ stdcall;
+procedure png_set_compression_strategy(png_ptr: png_structp;
+ strategy: int);
+ stdcall;
+procedure png_set_compression_window_bits(png_ptr: png_structp;
+ window_bits: int);
+ stdcall;
+procedure png_set_crc_action(png_ptr: png_structp;
+ crit_action, ancil_action: int);
+ stdcall;
+procedure png_set_dither(png_ptr: png_structp; plaette: png_colorp;
+ num_palette, maximum_colors: int;
+ histogram: png_uint_16p; full_dither: int);
+ stdcall;
+procedure png_set_error_fn(png_ptr: png_structp; error_ptr: png_voidp;
+ error_fn, warning_fn: png_error_ptr);
+ stdcall;
+procedure png_set_expand(png_ptr: png_structp);
+ stdcall;
+procedure png_set_filler(png_ptr: png_structp; filler: png_uint_32;
+ filler_loc: int);
+ stdcall;
+procedure png_set_filter(png_ptr: png_structp; method, filters: int);
+ stdcall;
+procedure png_set_filter_heuristics(png_ptr: png_structp;
+ heuristic_method, num_weights: int;
+ filter_weights, filter_costs: png_doublep);
+ stdcall;
+procedure png_set_flush(png_ptr: png_structp; nrows: int);
+ stdcall;
+procedure png_set_gAMA(png_ptr: png_structp; info_ptr: png_infop;
+ file_gamma: double);
+ stdcall;
+procedure png_set_gAMA_fixed(png_ptr: png_structp; info_ptr: png_infop;
+ file_gamma: png_fixed_point);
+ stdcall;
+procedure png_set_gamma(png_ptr: png_structp; screen_gamma,
+ default_file_gamma: double);
+ stdcall;
+procedure png_set_gray_1_2_4_to_8(png_ptr: png_structp);
+ stdcall;
+procedure png_set_gray_to_rgb(png_ptr: png_structp);
+ stdcall;
+procedure png_set_hIST(png_ptr: png_structp; info_ptr: png_infop;
+ hist: png_uint_16p);
+ stdcall;
+function png_set_interlace_handling(png_ptr: png_structp): int;
+ stdcall;
+procedure png_set_invalid(png_ptr: png_structp; info_ptr:png_infop;
+ mask: int);
+ stdcall;
+procedure png_set_invert_alpha(png_ptr: png_structp);
+ stdcall;
+procedure png_set_invert_mono(png_ptr: png_structp);
+ stdcall;
+procedure png_set_oFFs(png_ptr: png_structp; info_ptr: png_infop;
+ offset_x, offset_y: png_uint_32; unit_type: int);
+ stdcall;
+procedure png_set_palette_to_rgb(png_ptr: png_structp);
+ stdcall;
+procedure png_set_pCAL(png_ptr: png_structp; info_ptr: png_infop;
+ purpose: png_charp; X0, X1: png_int_32;
+ typ, nparams: int; units: png_charp;
+ params: png_charpp);
+ stdcall;
+procedure png_set_pHYs(png_ptr: png_structp; info_ptr: png_infop;
+ res_x, res_y: png_uint_32; unit_type: int);
+ stdcall;
+procedure png_set_packing(png_ptr: png_structp);
+ stdcall;
+procedure png_set_packswap(png_ptr: png_structp);
+ stdcall;
+procedure png_set_progressive_read_fn(png_ptr: png_structp;
+ progressive_ptr: png_voidp;
+ info_fn: png_progressive_info_ptr;
+ row_fn: png_progressive_row_ptr;
+ end_fn: png_progressive_end_ptr);
+ stdcall;
+procedure png_set_read_fn(png_ptr: png_structp;
+ io_ptr: png_voidp; read_data_fn: png_rw_ptr);
+ stdcall;
+procedure png_set_read_status_fn(png_ptr: png_structp;
+ read_row_fn: png_read_status_ptr);
+ stdcall;
+procedure png_set_read_user_chunk_fn(png_ptr: png_structp;
+ read_user_chunk_fn: png_user_chunk_ptr);
+ stdcall;
+procedure png_set_read_user_transform_fn(png_ptr: png_structp;
+ read_user_transform_fn: png_user_transform_ptr);
+ stdcall;
+procedure png_set_rgb_to_gray(png_ptr: png_structp; int: error_action;
+ red_weight, green_weight: double);
+ stdcall;
+procedure png_set_rgb_to_gray_fixed(png_ptr: png_structp; int: error_action;
+ red_weight, green_weight: png_fixed_point);
+ stdcall;
+procedure png_set_rows(png_ptr: png_structp; info_ptr: png_infop;
+ row_pointers: png_bytepp);
+ stdcall;
+procedure png_set_sBIT(png_ptr: png_structp; info_ptr: png_infop;
+ sig_bits: png_color_8p);
+ stdcall;
+procedure png_set_sRGB(png_ptr: png_structp; info_ptr: png_infop;
+ intent: int);
+ stdcall;
+procedure png_set_sRGB_gAMA_and_cHRM(png_ptr: png_structp;
+ info_ptr: png_infop; intent: int);
+ stdcall;
+procedure png_set_shift(png_ptr: png_structp; true_bits: png_color_8p);
+ stdcall;
+procedure png_set_sig_bytes(png_ptr: png_structp; num_bytes: int);
+ stdcall;
+procedure png_set_strip_16(png_ptr: png_structp);
+ stdcall;
+procedure png_set_strip_alpha(png_ptr: png_structp);
+ stdcall;
+procedure png_set_swap(png_ptr: png_structp);
+ stdcall;
+procedure png_set_swap_alpha(png_ptr: png_structp);
+ stdcall;
+procedure png_set_tIME(png_ptr: png_structp; info_ptr: png_infop;
+ mod_time: png_timep);
+ stdcall;
+procedure png_set_tRNS(png_ptr: png_structp; info_ptr: png_infop;
+ trans: png_bytep; num_trans: int;
+ trans_values: png_color_16p);
+ stdcall;
+procedure png_set_tRNS_to_alpha(png_ptr: png_structp);
+ stdcall;
+procedure png_set_text(png_ptr: png_structp; info_ptr: png_infop;
+ text_ptr: png_textp; num_text: int);
+ stdcall;
+procedure png_set_write_fn(png_ptr: png_structp;
+ io_ptr: png_voidp; write_data_fn: png_rw_ptr;
+ output_flush_fn: png_flush_ptr);
+ stdcall;
+procedure png_set_write_status_fn(png_ptr: png_structp;
+ write_row_fn: png_write_status_ptr);
+ stdcall;
+procedure png_set_write_user_transform_fn(png_ptr: png_structp;
+ write_user_transform_fn: png_user_transform_ptr);
+ stdcall;
+function png_sig_cmp(sig: png_bytep; start, num_to_check: png_size_t):
+ int;
+ stdcall;
+procedure png_start_read_image(png_ptr: png_structp);
+ stdcall;
+procedure png_write_chunk(png_ptr: png_structp;
+ chunk_name, data: png_bytep; length: png_size_t);
+ stdcall;
+procedure png_write_chunk_data(png_ptr: png_structp;
+ data: png_bytep; length: png_size_t);
+ stdcall;
+procedure png_write_chunk_end(png_ptr: png_structp);
+ stdcall;
+procedure png_write_chunk_start(png_ptr: png_structp;
+ chunk_name: png_bytep; length: png_uint_32);
+ stdcall;
+procedure png_write_end(png_ptr: png_structp; info_ptr: png_infop);
+ stdcall;
+procedure png_write_flush(png_ptr: png_structp);
+ stdcall;
+procedure png_write_image(png_ptr: png_structp; image: png_bytepp);
+ stdcall;
+procedure png_write_info(png_ptr: png_structp; info_ptr: png_infop);
+ stdcall;
+procedure png_write_info_before_PLTE(png_ptr: png_structp; info_ptr: png_infop);
+ stdcall;
+procedure png_write_row(png_ptr: png_structp; row: png_bytep);
+ stdcall;
+procedure png_write_rows(png_ptr: png_structp; row: png_bytepp;
+ num_rows: png_uint_32);
+ stdcall;
+procedure png_get_iCCP(png_ptr: png_structp; info_ptr: png_infop;
+ name: png_charpp; compression_type: int *; profile: png_charpp;
+ proflen: png_int_32): png_bytep;
+ stdcall;
+procedure png_get_sPLT(png_ptr: png_structp;
+ info_ptr: png_infop; entries: png_spalette_pp): png_uint_32;
+ stdcall;
+procedure png_set_iCCP(png_ptr: png_structp; info_ptr: png_infop;
+ name: png_charp; compression_type: int; profile: png_charp;
+ proflen: int);
+ stdcall;
+procedure png_free_data(png_ptr: png_structp; info_ptr: png_infop; num: int);
+ stdcall;
+procedure png_set_sPLT(png_ptr: png_structp; info_ptr: png_infop;
+ entries: png_spalette_p; nentries: int);
+ stdcall;
+
+implementation
+
+const
+ pngDLL = 'png32bd.dll';
+
+procedure png_build_grayscale_palette; external pngDLL;
+function png_check_sig; external pngDLL;
+procedure png_chunk_error; external pngDLL;
+procedure png_chunk_warning; external pngDLL;
+procedure png_convert_from_time_t; external pngDLL;
+function png_convert_to_rfc1123; external pngDLL;
+function png_create_info_struct; external pngDLL;
+function png_create_read_struct; external pngDLL;
+function png_create_write_struct; external pngDLL;
+procedure png_destroy_info_struct; external pngDLL;
+procedure png_destroy_read_struct; external pngDLL;
+procedure png_destroy_write_struct; external pngDLL;
+function png_get_IHDR; external pngDLL;
+function png_get_PLTE; external pngDLL;
+function png_get_bKGD; external pngDLL;
+function png_get_bit_depth; external pngDLL;
+function png_get_cHRM; external pngDLL;
+function png_get_channels; external pngDLL;
+function png_get_color_type; external pngDLL;
+function png_get_compression_type; external pngDLL;
+function png_get_error_ptr; external pngDLL;
+function png_get_filter_type; external pngDLL;
+function png_get_gAMA; external pngDLL;
+function png_get_hIST; external pngDLL;
+function png_get_image_height; external pngDLL;
+function png_get_image_width; external pngDLL;
+function png_get_interlace_type; external pngDLL;
+function png_get_io_ptr; external pngDLL;
+function png_get_oFFs; external pngDLL;
+function png_get_pCAL; external pngDLL;
+function png_get_pHYs; external pngDLL;
+function png_get_pixel_aspect_ratio; external pngDLL;
+function png_get_pixels_per_meter; external pngDLL;
+function png_get_progressive_ptr; external pngDLL;
+function png_get_rowbytes; external pngDLL;
+function png_get_rows; external pngDLL;
+function png_get_sBIT; external pngDLL;
+function png_get_sRGB; external pngDLL;
+function png_get_signature; external pngDLL;
+function png_get_tIME; external pngDLL;
+function png_get_tRNS; external pngDLL;
+function png_get_text; external pngDLL;
+function png_get_user_chunk_ptr; external pngDLL;
+function png_get_valid; external pngDLL;
+function png_get_x_offset_microns; external pngDLL;
+function png_get_x_offset_pixels; external pngDLL;
+function png_get_x_pixels_per_meter; external pngDLL;
+function png_get_y_offset_microns; external pngDLL;
+function png_get_y_offset_pixels; external pngDLL;
+function png_get_y_pixels_per_meter; external pngDLL;
+procedure png_process_data; external pngDLL;
+procedure png_progressive_combine_row; external pngDLL;
+procedure png_read_end; external pngDLL;
+procedure png_read_image; external pngDLL;
+procedure png_read_info; external pngDLL;
+procedure png_read_row; external pngDLL;
+procedure png_read_rows; external pngDLL;
+procedure png_read_update_info; external pngDLL;
+procedure png_set_IHDR; external pngDLL;
+procedure png_set_PLTE; external pngDLL;
+procedure png_set_bKGD; external pngDLL;
+procedure png_set_background; external pngDLL;
+procedure png_set_bgr; external pngDLL;
+procedure png_set_cHRM; external pngDLL;
+procedure png_set_cHRM_fixed; external pngDLL;
+procedure png_set_compression_level; external pngDLL;
+procedure png_set_compression_mem_level; external pngDLL;
+procedure png_set_compression_method; external pngDLL;
+procedure png_set_compression_strategy; external pngDLL;
+procedure png_set_compression_window_bits; external pngDLL;
+procedure png_set_crc_action; external pngDLL;
+procedure png_set_dither; external pngDLL;
+procedure png_set_error_fn; external pngDLL;
+procedure png_set_expand; external pngDLL;
+procedure png_set_filler; external pngDLL;
+procedure png_set_filter; external pngDLL;
+procedure png_set_filter_heuristics; external pngDLL;
+procedure png_set_flush; external pngDLL;
+procedure png_set_gAMA; external pngDLL;
+procedure png_set_gAMA_fixed; external pngDLL;
+procedure png_set_gamma; external pngDLL;
+procedure png_set_gray_to_rgb; external pngDLL;
+procedure png_set_hIST; external pngDLL;
+function png_set_interlace_handling; external pngDLL;
+procedure png_set_invert_alpha; external pngDLL;
+procedure png_set_invert_mono; external pngDLL;
+procedure png_set_oFFs; external pngDLL;
+procedure png_set_pCAL; external pngDLL;
+procedure png_set_pHYs; external pngDLL;
+procedure png_set_packing; external pngDLL;
+procedure png_set_packswap; external pngDLL;
+procedure png_set_progressive_read_fn; external pngDLL;
+procedure png_set_read_fn; external pngDLL;
+procedure png_set_read_status_fn; external pngDLL;
+procedure png_set_read_user_transform_fn; external pngDLL;
+procedure png_set_rgb_to_gray; external pngDLL;
+procedure png_set_rgb_to_gray_fixed; external pngDLL;
+procedure png_set_rows; external pngDLL;
+procedure png_set_sBIT; external pngDLL;
+procedure png_set_sRGB; external pngDLL;
+procedure png_set_sRGB_gAMA_and_cHRM; external pngDLL;
+procedure png_set_shift; external pngDLL;
+procedure png_set_sig_bytes; external pngDLL;
+procedure png_set_strip_16; external pngDLL;
+procedure png_set_strip_alpha; external pngDLL;
+procedure png_set_swap; external pngDLL;
+procedure png_set_swap_alpha; external pngDLL;
+procedure png_set_tIME; external pngDLL;
+procedure png_set_tRNS; external pngDLL;
+procedure png_set_text; external pngDLL;
+procedure png_set_user_chunk_fn; external pngDLL;
+procedure png_set_write_fn; external pngDLL;
+procedure png_set_write_status_fn; external pngDLL;
+procedure png_set_write_user_transform_fn; external pngDLL;
+function png_sig_cmp; external pngDLL;
+procedure png_start_read_image; external pngDLL;
+procedure png_write_chunk; external pngDLL;
+procedure png_write_chunk_data; external pngDLL;
+procedure png_write_chunk_end; external pngDLL;
+procedure png_write_chunk_start; external pngDLL;
+procedure png_write_end; external pngDLL;
+procedure png_write_flush; external pngDLL;
+procedure png_write_image; external pngDLL;
+procedure png_write_info; external pngDLL;
+procedure png_write_info_before_PLTE; external pngDLL;
+procedure png_write_row; external pngDLL;
+procedure png_write_rows; external pngDLL;
+procedure png_get_iCCP; external pngDLL;
+procedure png_get_sPLT; external pngDLL;
+procedure png_set_iCCP; external pngDLL;
+procedure png_set_sPLT; external pngDLL;
+procedure png_free_data; external pngDLL;
+
+end.
projects / wxWidgets.git / commitdiff
