| 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 Windows 3.x-specific Routines. |
| 29 | */ |
| 30 | #include "tiffiop.h" |
| 31 | #if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(_MSC_VER) |
| 32 | #include <io.h> /* for open, close, etc. function prototypes */ |
| 33 | #endif |
| 34 | |
| 35 | #include <windows.h> |
| 36 | #include <windowsx.h> |
| 37 | #include <memory.h> |
| 38 | |
| 39 | static tsize_t |
| 40 | _tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size) |
| 41 | { |
| 42 | return (_hread(fd, buf, size)); |
| 43 | } |
| 44 | |
| 45 | static tsize_t |
| 46 | _tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size) |
| 47 | { |
| 48 | return (_hwrite(fd, buf, size)); |
| 49 | } |
| 50 | |
| 51 | static toff_t |
| 52 | _tiffSeekProc(thandle_t fd, toff_t off, int whence) |
| 53 | { |
| 54 | return (_llseek(fd, (off_t) off, whence)); |
| 55 | } |
| 56 | |
| 57 | static int |
| 58 | _tiffCloseProc(thandle_t fd) |
| 59 | { |
| 60 | return (_lclose(fd)); |
| 61 | } |
| 62 | |
| 63 | #include <sys/stat.h> |
| 64 | |
| 65 | static toff_t |
| 66 | _tiffSizeProc(thandle_t fd) |
| 67 | { |
| 68 | struct stat sb; |
| 69 | return (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size); |
| 70 | } |
| 71 | |
| 72 | static int |
| 73 | _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize) |
| 74 | { |
| 75 | return (0); |
| 76 | } |
| 77 | |
| 78 | static void |
| 79 | _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size) |
| 80 | { |
| 81 | } |
| 82 | |
| 83 | /* |
| 84 | * Open a TIFF file descriptor for read/writing. |
| 85 | */ |
| 86 | TIFF* |
| 87 | TIFFFdOpen(int fd, const char* name, const char* mode) |
| 88 | { |
| 89 | TIFF* tif; |
| 90 | |
| 91 | tif = TIFFClientOpen(name, mode, |
| 92 | (thandle_t) fd, |
| 93 | _tiffReadProc, _tiffWriteProc, _tiffSeekProc, _tiffCloseProc, |
| 94 | _tiffSizeProc, _tiffMapProc, _tiffUnmapProc); |
| 95 | if (tif) |
| 96 | tif->tif_fd = fd; |
| 97 | return (tif); |
| 98 | } |
| 99 | |
| 100 | /* |
| 101 | * Open a TIFF file for read/writing. |
| 102 | */ |
| 103 | TIFF* |
| 104 | TIFFOpen(const char* name, const char* mode) |
| 105 | { |
| 106 | static const char module[] = "TIFFOpen"; |
| 107 | int m, fd; |
| 108 | OFSTRUCT of; |
| 109 | int mm = 0; |
| 110 | |
| 111 | m = _TIFFgetMode(mode, module); |
| 112 | if (m == -1) |
| 113 | return ((TIFF*)0); |
| 114 | if (m & O_CREAT) { |
| 115 | if ((m & O_TRUNC) || OpenFile(name, &of, OF_EXIST) != HFILE_ERROR) |
| 116 | mm |= OF_CREATE; |
| 117 | } |
| 118 | if (m & O_WRONLY) |
| 119 | mm |= OF_WRITE; |
| 120 | if (m & O_RDWR) |
| 121 | mm |= OF_READWRITE; |
| 122 | fd = OpenFile(name, &of, mm); |
| 123 | if (fd < 0) { |
| 124 | TIFFError(module, "%s: Cannot open", name); |
| 125 | return ((TIFF*)0); |
| 126 | } |
| 127 | return (TIFFFdOpen(fd, name, mode)); |
| 128 | } |
| 129 | |
| 130 | tdata_t |
| 131 | _TIFFmalloc(tsize_t s) |
| 132 | { |
| 133 | return (tdata_t) GlobalAllocPtr(GHND, (DWORD) s); |
| 134 | } |
| 135 | |
| 136 | void |
| 137 | _TIFFfree(tdata_t p) |
| 138 | { |
| 139 | GlobalFreePtr(p); |
| 140 | } |
| 141 | |
| 142 | tdata_t |
| 143 | _TIFFrealloc(tdata_t p, tsize_t s) |
| 144 | { |
| 145 | return (tdata_t) GlobalReAllocPtr(p, (DWORD) s, GHND); |
| 146 | } |
| 147 | |
| 148 | void |
| 149 | _TIFFmemset(tdata_t p, int v, tsize_t c) |
| 150 | { |
| 151 | char* pp = (char*) p; |
| 152 | |
| 153 | while (c > 0) { |
| 154 | tsize_t chunk = 0x10000 - ((uint32) pp & 0xffff);/* What's left in segment */ |
| 155 | if (chunk > 0xff00) /* No more than 0xff00 */ |
| 156 | chunk = 0xff00; |
| 157 | if (chunk > c) /* No more than needed */ |
| 158 | chunk = c; |
| 159 | memset(pp, v, chunk); |
| 160 | pp = (char*) (chunk + (char huge*) pp); |
| 161 | c -= chunk; |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | void |
| 166 | _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c) |
| 167 | { |
| 168 | if (c > 0xFFFF) |
| 169 | hmemcpy((void _huge*) d, (void _huge*) s, c); |
| 170 | else |
| 171 | (void) memcpy(d, s, (size_t) c); |
| 172 | } |
| 173 | |
| 174 | int |
| 175 | _TIFFmemcmp(const tdata_t d, const tdata_t s, tsize_t c) |
| 176 | { |
| 177 | char* dd = (char*) d; |
| 178 | char* ss = (char*) s; |
| 179 | tsize_t chunks, chunkd, chunk; |
| 180 | int result; |
| 181 | |
| 182 | while (c > 0) { |
| 183 | chunks = 0x10000 - ((uint32) ss & 0xffff); /* What's left in segment */ |
| 184 | chunkd = 0x10000 - ((uint32) dd & 0xffff); /* What's left in segment */ |
| 185 | chunk = c; /* Get the largest of */ |
| 186 | if (chunk > chunks) /* c, chunks, chunkd, */ |
| 187 | chunk = chunks; /* 0xff00 */ |
| 188 | if (chunk > chunkd) |
| 189 | chunk = chunkd; |
| 190 | if (chunk > 0xff00) |
| 191 | chunk = 0xff00; |
| 192 | result = memcmp(dd, ss, chunk); |
| 193 | if (result != 0) |
| 194 | return (result); |
| 195 | dd = (char*) (chunk + (char huge*) dd); |
| 196 | ss = (char*) (chunk + (char huge*) ss); |
| 197 | c -= chunk; |
| 198 | } |
| 199 | return (0); |
| 200 | } |
| 201 | |
| 202 | static void |
| 203 | win3WarningHandler(const char* module, const char* fmt, va_list ap) |
| 204 | { |
| 205 | char e[512] = { '\0' }; |
| 206 | if (module != NULL) |
| 207 | strcat(strcpy(e, module), ":"); |
| 208 | vsprintf(e+strlen(e), fmt, ap); |
| 209 | strcat(e, "."); |
| 210 | MessageBox(GetActiveWindow(), e, "LibTIFF Warning", |
| 211 | MB_OK|MB_ICONEXCLAMATION); |
| 212 | } |
| 213 | TIFFErrorHandler _TIFFwarningHandler = win3WarningHandler; |
| 214 | |
| 215 | static void |
| 216 | win3ErrorHandler(const char* module, const char* fmt, va_list ap) |
| 217 | { |
| 218 | char e[512] = { '\0' }; |
| 219 | if (module != NULL) |
| 220 | strcat(strcpy(e, module), ":"); |
| 221 | vsprintf(e+strlen(e), fmt, ap); |
| 222 | strcat(e, "."); |
| 223 | MessageBox(GetActiveWindow(), e, "LibTIFF Error", MB_OK|MB_ICONSTOP); |
| 224 | } |
| 225 | TIFFErrorHandler _TIFFerrorHandler = win3ErrorHandler; |