src/tiff/tif_apple.c

/* $Header$ */

/*
 * Copyright (c) 1988-1997 Sam Leffler
 * Copyright (c) 1991-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 *
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

/*
 * TIFF Library Macintosh-specific routines.
 *
 * These routines use only Toolbox and high-level File Manager traps.
 * They make no calls to the THINK C "unix" compatibility library.  Also,
 * malloc is not used directly but it is still referenced internally by
 * the ANSI library in rare cases.  Heap fragmentation by the malloc ring
 * buffer is therefore minimized.
 *
 * O_RDONLY and O_RDWR are treated identically here.  The tif_mode flag is
 * checked in TIFFWriteCheck().
 *
 * Create below fills in a blank creator signature and sets the file type
 * to 'TIFF'.  It is much better for the application to do this by Create'ing
 * the file first and TIFFOpen'ing it later.
 */

#ifdef __MACH__
   	  #include <ansi_prefix.mach.h>
   	  #include <msl_c_version.h>
   	  #include <stdint.h>
   	  #undef WCHAR_MAX
   	  #include <machine/ansi.h>
#endif
#include "tiffiop.h"
#include <MacErrors.h>
#include <Files.h>
#include <Memory.h>

#if defined(__PPCC__) || defined(__SYMANTEC__) || defined(__MRC__) || defined(applec)
#define	CtoPstr	c2pstr
#endif

static tsize_t
_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
{
	return (FSRead((short) fd, (long*) &size, (char*) buf) == noErr ?
	    size : (tsize_t) -1);
}

static tsize_t
_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
{
	return (FSWrite((short) fd, (long*) &size, (char*) buf) == noErr ?
	    size : (tsize_t) -1);
}

static toff_t
_tiffSeekProc(thandle_t fd, toff_t off, int whence)
{
	long fpos, size;

	if (GetEOF((short) fd, &size) != noErr)
		return EOF;
	(void) GetFPos((short) fd, &fpos);

	switch (whence) {
	case SEEK_CUR:
		if (off + fpos > size)
			SetEOF((short) fd, off + fpos);
		if (SetFPos((short) fd, fsFromMark, off) != noErr)
			return EOF;
		break;
	case SEEK_END:
		if (off > 0)
			SetEOF((short) fd, off + size);
		if (SetFPos((short) fd, fsFromStart, off + size) != noErr)
			return EOF;
		break;
	case SEEK_SET:
		if (off > size)
			SetEOF((short) fd, off);
		if (SetFPos((short) fd, fsFromStart, off) != noErr)
			return EOF;
		break;
	}

	return (toff_t)(GetFPos((short) fd, &fpos) == noErr ? fpos : EOF);
}

static int
_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
{
	return (0);
}

static void
_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
{
}

static int
_tiffCloseProc(thandle_t fd)
{
	return (FSClose((short) fd));
}

static toff_t
_tiffSizeProc(thandle_t fd)
{
	long size;

	if (GetEOF((short) fd, &size) != noErr) {
		TIFFError("_tiffSizeProc", "%s: Cannot get file size");
		return (-1L);
	}
	return ((toff_t) size);
}

/*
 * Open a TIFF file descriptor for read/writing.
 */
TIFF*
TIFFFdOpen(int fd, const char* name, const char* mode)
{
	TIFF* tif;

	tif = TIFFClientOpen(name, mode, (thandle_t) fd,
	    _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc,
	    _tiffSizeProc, _tiffMapProc, _tiffUnmapProc);
	if (tif)
		tif->tif_fd = fd;
	return (tif);
}

/*
 * Open a TIFF file for read/writing.
 */
TIFF*
TIFFOpen(const char* name, const char* mode)
{
	static const char module[] = "TIFFOpen";
	Str255 pname;
	FInfo finfo;
	short fref;
	OSErr err;

	strcpy((char*) pname, name);
	CtoPstr((char*) pname);

	switch (_TIFFgetMode(mode, module)) {
	default:
		return ((TIFF*) 0);
	case O_RDWR | O_CREAT | O_TRUNC:
		if (GetFInfo(pname, 0, &finfo) == noErr)
			FSDelete(pname, 0);
		/* fall through */
	case O_RDWR | O_CREAT:
		if ((err = GetFInfo(pname, 0, &finfo)) == fnfErr) {
			if (Create(pname, 0, '    ', 'TIFF') != noErr)
				goto badCreate;
			if (FSOpen(pname, 0, &fref) != noErr)
				goto badOpen;
		} else if (err == noErr) {
			if (FSOpen(pname, 0, &fref) != noErr)
				goto badOpen;
		} else
			goto badOpen;
		break;
	case O_RDONLY:
	case O_RDWR:
		if (FSOpen(pname, 0, &fref) != noErr)
			goto badOpen;
		break;
	}
	return (TIFFFdOpen((int) fref, name, mode));
badCreate:
	TIFFError(module, "%s: Cannot create", name);
	return ((TIFF*) 0);
badOpen:
	TIFFError(module, "%s: Cannot open", name);
	return ((TIFF*) 0);
}

void
_TIFFmemset(tdata_t p, int v, tsize_t c)
{
	memset(p, v, (size_t) c);
}

void
_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
{
	memcpy(d, s, (size_t) c);
}

int
_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
{
	return (memcmp(p1, p2, (size_t) c));
}

tdata_t
_TIFFmalloc(tsize_t s)
{
	return (NewPtr((size_t) s));
}

void
_TIFFfree(tdata_t p)
{
	DisposePtr(p);
}

tdata_t
_TIFFrealloc(tdata_t p, tsize_t s)
{
	Ptr n = p;

	SetPtrSize(p, (size_t) s);
	if (MemError() && (n = NewPtr((size_t) s)) != NULL) {
		BlockMove(p, n, GetPtrSize(p));
		DisposePtr(p);
	}
	return ((tdata_t) n);
}

static void
appleWarningHandler(const char* module, const char* fmt, va_list ap)
{
	if (module != NULL)
		fprintf(stderr, "%s: ", module);
	fprintf(stderr, "Warning, ");
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, ".\n");
}
TIFFErrorHandler _TIFFwarningHandler = appleWarningHandler;

static void
appleErrorHandler(const char* module, const char* fmt, va_list ap)
{
	if (module != NULL)
		fprintf(stderr, "%s: ", module);
	vfprintf(stderr, fmt, ap);
	fprintf(stderr, ".\n");
}
TIFFErrorHandler _TIFFerrorHandler = appleErrorHandler;
Commit	Line	Data
	1	/* $Header$ */
	2
	3	/*
	4	* Copyright (c) 1988-1997 Sam Leffler
	5	* Copyright (c) 1991-1997 Silicon Graphics, Inc.
	6	*
	7	* Permission to use, copy, modify, distribute, and sell this software and
	8	* its documentation for any purpose is hereby granted without fee, provided
	9	* that (i) the above copyright notices and this permission notice appear in
	10	* all copies of the software and related documentation, and (ii) the names of
	11	* Sam Leffler and Silicon Graphics may not be used in any advertising or
	12	* publicity relating to the software without the specific, prior written
	13	* permission of Sam Leffler and Silicon Graphics.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
	16	* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
	17	* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
	18	*
	19	* IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
	20	* ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
	21	* OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
	22	* WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
	23	* LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
	24	* OF THIS SOFTWARE.
	25	*/
	26
	27	/*
	28	* TIFF Library Macintosh-specific routines.
	29	*
	30	* These routines use only Toolbox and high-level File Manager traps.
	31	* They make no calls to the THINK C "unix" compatibility library. Also,
	32	* malloc is not used directly but it is still referenced internally by
	33	* the ANSI library in rare cases. Heap fragmentation by the malloc ring
	34	* buffer is therefore minimized.
	35	*
	36	* O_RDONLY and O_RDWR are treated identically here. The tif_mode flag is
	37	* checked in TIFFWriteCheck().
	38	*
	39	* Create below fills in a blank creator signature and sets the file type
	40	* to 'TIFF'. It is much better for the application to do this by Create'ing
	41	* the file first and TIFFOpen'ing it later.
	42	*/
	43
	44	#ifdef __MACH__
	45	#include <ansi_prefix.mach.h>
	46	#include <msl_c_version.h>
	47	#include <stdint.h>
	48	#undef WCHAR_MAX
	49	#include <machine/ansi.h>
	50	#endif
	51	#include "tiffiop.h"
	52	#include <MacErrors.h>
	53	#include <Files.h>
	54	#include <Memory.h>
	55
	56	#if defined(__PPCC__) \|\| defined(__SYMANTEC__) \|\| defined(__MRC__) \|\| defined(applec)
	57	#define CtoPstr c2pstr
	58	#endif
	59
	60	static tsize_t
	61	_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
	62	{
	63	return (FSRead((short) fd, (long) &size, (char) buf) == noErr ?
	64	size : (tsize_t) -1);
	65	}
	66
	67	static tsize_t
	68	_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
	69	{
	70	return (FSWrite((short) fd, (long) &size, (char) buf) == noErr ?
	71	size : (tsize_t) -1);
	72	}
	73
	74	static toff_t
	75	_tiffSeekProc(thandle_t fd, toff_t off, int whence)
	76	{
	77	long fpos, size;
	78
	79	if (GetEOF((short) fd, &size) != noErr)
	80	return EOF;
	81	(void) GetFPos((short) fd, &fpos);
	82
	83	switch (whence) {
	84	case SEEK_CUR:
	85	if (off + fpos > size)
	86	SetEOF((short) fd, off + fpos);
	87	if (SetFPos((short) fd, fsFromMark, off) != noErr)
	88	return EOF;
	89	break;
	90	case SEEK_END:
	91	if (off > 0)
	92	SetEOF((short) fd, off + size);
	93	if (SetFPos((short) fd, fsFromStart, off + size) != noErr)
	94	return EOF;
	95	break;
	96	case SEEK_SET:
	97	if (off > size)
	98	SetEOF((short) fd, off);
	99	if (SetFPos((short) fd, fsFromStart, off) != noErr)
	100	return EOF;
	101	break;
	102	}
	103
	104	return (toff_t)(GetFPos((short) fd, &fpos) == noErr ? fpos : EOF);
	105	}
	106
	107	static int
	108	_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
	109	{
	110	return (0);
	111	}
	112
	113	static void
	114	_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
	115	{
	116	}
	117
	118	static int
	119	_tiffCloseProc(thandle_t fd)
	120	{
	121	return (FSClose((short) fd));
	122	}
	123
	124	static toff_t
	125	_tiffSizeProc(thandle_t fd)
	126	{
	127	long size;
	128
	129	if (GetEOF((short) fd, &size) != noErr) {
	130	TIFFError("_tiffSizeProc", "%s: Cannot get file size");
	131	return (-1L);
	132	}
	133	return ((toff_t) size);
	134	}
	135
	136	/*
	137	* Open a TIFF file descriptor for read/writing.
	138	*/
	139	TIFF*
	140	TIFFFdOpen(int fd, const char* name, const char* mode)
	141	{
	142	TIFF* tif;
	143
	144	tif = TIFFClientOpen(name, mode, (thandle_t) fd,
	145	_tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc,
	146	_tiffSizeProc, _tiffMapProc, _tiffUnmapProc);
	147	if (tif)
	148	tif->tif_fd = fd;
	149	return (tif);
	150	}
	151
	152	/*
	153	* Open a TIFF file for read/writing.
	154	*/
	155	TIFF*
	156	TIFFOpen(const char* name, const char* mode)
	157	{
	158	static const char module[] = "TIFFOpen";
	159	Str255 pname;
	160	FInfo finfo;
	161	short fref;
	162	OSErr err;
	163
	164	strcpy((char*) pname, name);
	165	CtoPstr((char*) pname);
	166
	167	switch (_TIFFgetMode(mode, module)) {
	168	default:
	169	return ((TIFF*) 0);
	170	case O_RDWR \| O_CREAT \| O_TRUNC:
	171	if (GetFInfo(pname, 0, &finfo) == noErr)
	172	FSDelete(pname, 0);
	173	/* fall through */
	174	case O_RDWR \| O_CREAT:
	175	if ((err = GetFInfo(pname, 0, &finfo)) == fnfErr) {
	176	if (Create(pname, 0, ' ', 'TIFF') != noErr)
	177	goto badCreate;
	178	if (FSOpen(pname, 0, &fref) != noErr)
	179	goto badOpen;
	180	} else if (err == noErr) {
	181	if (FSOpen(pname, 0, &fref) != noErr)
	182	goto badOpen;
	183	} else
	184	goto badOpen;
	185	break;
	186	case O_RDONLY:
	187	case O_RDWR:
	188	if (FSOpen(pname, 0, &fref) != noErr)
	189	goto badOpen;
	190	break;
	191	}
	192	return (TIFFFdOpen((int) fref, name, mode));
	193	badCreate:
	194	TIFFError(module, "%s: Cannot create", name);
	195	return ((TIFF*) 0);
	196	badOpen:
	197	TIFFError(module, "%s: Cannot open", name);
	198	return ((TIFF*) 0);
	199	}
	200
	201	void
	202	_TIFFmemset(tdata_t p, int v, tsize_t c)
	203	{
	204	memset(p, v, (size_t) c);
	205	}
	206
	207	void
	208	_TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
	209	{
	210	memcpy(d, s, (size_t) c);
	211	}
	212
	213	int
	214	_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
	215	{
	216	return (memcmp(p1, p2, (size_t) c));
	217	}
	218
	219	tdata_t
	220	_TIFFmalloc(tsize_t s)
	221	{
	222	return (NewPtr((size_t) s));
	223	}
	224
	225	void
	226	_TIFFfree(tdata_t p)
	227	{
	228	DisposePtr(p);
	229	}
	230
	231	tdata_t
	232	_TIFFrealloc(tdata_t p, tsize_t s)
	233	{
	234	Ptr n = p;
	235
	236	SetPtrSize(p, (size_t) s);
	237	if (MemError() && (n = NewPtr((size_t) s)) != NULL) {
	238	BlockMove(p, n, GetPtrSize(p));
	239	DisposePtr(p);
	240	}
	241	return ((tdata_t) n);
	242	}
	243
	244	static void
	245	appleWarningHandler(const char* module, const char* fmt, va_list ap)
	246	{
	247	if (module != NULL)
	248	fprintf(stderr, "%s: ", module);
	249	fprintf(stderr, "Warning, ");
	250	vfprintf(stderr, fmt, ap);
	251	fprintf(stderr, ".\n");
	252	}
	253	TIFFErrorHandler _TIFFwarningHandler = appleWarningHandler;
	254
	255	static void
	256	appleErrorHandler(const char* module, const char* fmt, va_list ap)
	257	{
	258	if (module != NULL)
	259	fprintf(stderr, "%s: ", module);
	260	vfprintf(stderr, fmt, ap);
	261	fprintf(stderr, ".\n");
	262	}
	263	TIFFErrorHandler _TIFFerrorHandler = appleErrorHandler;