src/tiff/libtiff/tif_win32.c

   1 /* $Id$ */
   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 Win32-specific Routines.  Adapted from tif_unix.c 4/5/95 by
  29  * Scott Wagner (wagner@itek.com), Itek Graphix, Rochester, NY USA
  30  */
  31 #include "tiffiop.h"
  32
  33 static tsize_t
  34 _tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
  35 {
  36         DWORD dwSizeRead;
  37         if (!ReadFile(fd, buf, size, &dwSizeRead, NULL))
  38                 return(0);
  39         return ((tsize_t) dwSizeRead);
  40 }
  41
  42 static tsize_t
  43 _tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
  44 {
  45         DWORD dwSizeWritten;
  46         if (!WriteFile(fd, buf, size, &dwSizeWritten, NULL))
  47                 return(0);
  48         return ((tsize_t) dwSizeWritten);
  49 }
  50
  51 static toff_t
  52 _tiffSeekProc(thandle_t fd, toff_t off, int whence)
  53 {
  54         DWORD dwMoveMethod, dwMoveHigh;
  55
  56         /* we use this as a special code, so avoid accepting it */
  57         if( off == 0xFFFFFFFF )
  58             return 0xFFFFFFFF;
  59
  60         switch(whence)
  61         {
  62         case SEEK_SET:
  63                 dwMoveMethod = FILE_BEGIN;
  64                 break;
  65         case SEEK_CUR:
  66                 dwMoveMethod = FILE_CURRENT;
  67                 break;
  68         case SEEK_END:
  69                 dwMoveMethod = FILE_END;
  70                 break;
  71         default:
  72                 dwMoveMethod = FILE_BEGIN;
  73                 break;
  74         }
  75         dwMoveHigh = 0;
  76         return ((toff_t)SetFilePointer(fd, (LONG) off, (PLONG)&dwMoveHigh,
  77                                        dwMoveMethod));
  78 }
  79
  80 static int
  81 _tiffCloseProc(thandle_t fd)
  82 {
  83         return (CloseHandle(fd) ? 0 : -1);
  84 }
  85
  86 static toff_t
  87 _tiffSizeProc(thandle_t fd)
  88 {
  89         return ((toff_t)GetFileSize(fd, NULL));
  90 }
  91
  92 #ifdef __BORLANDC__
  93 #pragma argsused
  94 #endif
  95 static int
  96 _tiffDummyMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
  97 {
  98         return (0);
  99 }
 100
 101 /*
 102  * From "Hermann Josef Hill" <lhill@rhein-zeitung.de>:
 103  *
 104  * Windows uses both a handle and a pointer for file mapping,
 105  * but according to the SDK documentation and Richter's book
 106  * "Advanced Windows Programming" it is safe to free the handle
 107  * after obtaining the file mapping pointer
 108  *
 109  * This removes a nasty OS dependency and cures a problem
 110  * with Visual C++ 5.0
 111  */
 112 static int
 113 _tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
 114 {
 115         toff_t size;
 116         HANDLE hMapFile;
 117
 118         if ((size = _tiffSizeProc(fd)) == 0xFFFFFFFF)
 119                 return (0);
 120         hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, size, NULL);
 121         if (hMapFile == NULL)
 122                 return (0);
 123         *pbase = MapViewOfFile(hMapFile, FILE_MAP_READ, 0, 0, 0);
 124         CloseHandle(hMapFile);
 125         if (*pbase == NULL)
 126                 return (0);
 127         *psize = size;
 128         return(1);
 129 }
 130
 131 #ifdef __BORLANDC__
 132 #pragma argsused
 133 #endif
 134 static void
 135 _tiffDummyUnmapProc(thandle_t fd, tdata_t base, toff_t size)
 136 {
 137 }
 138
 139 static void
 140 _tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
 141 {
 142         UnmapViewOfFile(base);
 143 }
 144
 145 /*
 146  * Open a TIFF file descriptor for read/writing.
 147  * Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode
 148  * string, which forces the file to be opened unmapped.
 149  */
 150 TIFF*
 151 TIFFFdOpen(int ifd, const char* name, const char* mode)
 152 {
 153         TIFF* tif;
 154         BOOL fSuppressMap = (mode[1] == 'u' || (mode[1]!=0 && mode[2] == 'u'));
 155
 156         tif = TIFFClientOpen(name, mode, (thandle_t)ifd,
 157                         _tiffReadProc, _tiffWriteProc,
 158                         _tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
 159                         fSuppressMap ? _tiffDummyMapProc : _tiffMapProc,
 160                         fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc);
 161         if (tif)
 162                 tif->tif_fd = ifd;
 163         return (tif);
 164 }
 165
 166 /*
 167  * Open a TIFF file for read/writing.
 168  */
 169 TIFF*
 170 TIFFOpen(const char* name, const char* mode)
 171 {
 172         static const char module[] = "TIFFOpen";
 173         thandle_t fd;
 174         int m;
 175         DWORD dwMode;
 176         TIFF* tif;
 177
 178         m = _TIFFgetMode(mode, module);
 179
 180         switch(m)
 181         {
 182         case O_RDONLY:
 183                 dwMode = OPEN_EXISTING;
 184                 break;
 185         case O_RDWR:
 186                 dwMode = OPEN_ALWAYS;
 187                 break;
 188         case O_RDWR|O_CREAT:
 189                 dwMode = OPEN_ALWAYS;
 190                 break;
 191         case O_RDWR|O_TRUNC:
 192                 dwMode = CREATE_ALWAYS;
 193                 break;
 194         case O_RDWR|O_CREAT|O_TRUNC:
 195                 dwMode = CREATE_ALWAYS;
 196                 break;
 197         default:
 198                 return ((TIFF*)0);
 199         }
 200         fd = (thandle_t)CreateFileA(name,
 201                 (m == O_RDONLY)?GENERIC_READ:(GENERIC_READ | GENERIC_WRITE),
 202                 FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, dwMode,
 203                 (m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL,
 204                 NULL);
 205         if (fd == INVALID_HANDLE_VALUE) {
 206                 TIFFErrorExt(0, module, "%s: Cannot open", name);
 207                 return ((TIFF *)0);
 208         }
 209
 210         tif = TIFFFdOpen((int)fd, name, mode);
 211         if(!tif)
 212                 CloseHandle(fd);
 213         return tif;
 214 }
 215
 216 /*
 217  * Open a TIFF file with a Unicode filename, for read/writing.
 218  */
 219 TIFF*
 220 TIFFOpenW(const wchar_t* name, const char* mode)
 221 {
 222         static const char module[] = "TIFFOpenW";
 223         thandle_t fd;
 224         int m;
 225         DWORD dwMode;
 226         int mbsize;
 227         char *mbname;
 228         TIFF *tif;
 229
 230         m = _TIFFgetMode(mode, module);
 231
 232         switch(m) {
 233                 case O_RDONLY:                  dwMode = OPEN_EXISTING; break;
 234                 case O_RDWR:                    dwMode = OPEN_ALWAYS;   break;
 235                 case O_RDWR|O_CREAT:            dwMode = OPEN_ALWAYS;   break;
 236                 case O_RDWR|O_TRUNC:            dwMode = CREATE_ALWAYS; break;
 237                 case O_RDWR|O_CREAT|O_TRUNC:    dwMode = CREATE_ALWAYS; break;
 238                 default:                        return ((TIFF*)0);
 239         }
 240
 241         fd = (thandle_t)CreateFileW(name,
 242                 (m == O_RDONLY)?GENERIC_READ:(GENERIC_READ|GENERIC_WRITE),
 243                 FILE_SHARE_READ, NULL, dwMode,
 244                 (m == O_RDONLY)?FILE_ATTRIBUTE_READONLY:FILE_ATTRIBUTE_NORMAL,
 245                 NULL);
 246         if (fd == INVALID_HANDLE_VALUE) {
 247                 TIFFErrorExt(0, module, "%S: Cannot open", name);
 248                 return ((TIFF *)0);
 249         }
 250
 251         mbname = NULL;
 252         mbsize = WideCharToMultiByte(CP_ACP, 0, name, -1, NULL, 0, NULL, NULL);
 253         if (mbsize > 0) {
 254                 mbname = (char *)_TIFFmalloc(mbsize);
 255                 if (!mbname) {
 256                         TIFFErrorExt(0, module,
 257                         "Can't allocate space for filename conversion buffer");
 258                         return ((TIFF*)0);
 259                 }
 260
 261                 WideCharToMultiByte(CP_ACP, 0, name, -1, mbname, mbsize,
 262                                     NULL, NULL);
 263         }
 264
 265         tif = TIFFFdOpen((int)fd,
 266                          (mbname != NULL) ? mbname : "<unknown>", mode);
 267         if(!tif)
 268                 CloseHandle(fd);
 269
 270         _TIFFfree(mbname);
 271
 272         return tif;
 273 }
 274
 275 tdata_t
 276 _TIFFmalloc(tsize_t s)
 277 {
 278         return ((tdata_t)GlobalAlloc(GMEM_FIXED, s));
 279 }
 280
 281 void
 282 _TIFFfree(tdata_t p)
 283 {
 284         GlobalFree(p);
 285         return;
 286 }
 287
 288 tdata_t
 289 _TIFFrealloc(tdata_t p, tsize_t s)
 290 {
 291         void* pvTmp;
 292         tsize_t old;
 293
 294         if(p == NULL)
 295                 return ((tdata_t)GlobalAlloc(GMEM_FIXED, s));
 296
 297         old = GlobalSize(p);
 298
 299         if (old>=s) {
 300                 if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) {
 301                         CopyMemory(pvTmp, p, s);
 302                         GlobalFree(p);
 303                 }
 304         } else {
 305                 if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) {
 306                         CopyMemory(pvTmp, p, old);
 307                         GlobalFree(p);
 308                 }
 309         }
 310         return ((tdata_t)pvTmp);
 311 }
 312
 313 void
 314 _TIFFmemset(void* p, int v, tsize_t c)
 315 {
 316         FillMemory(p, c, (BYTE)v);
 317 }
 318
 319 void
 320 _TIFFmemcpy(void* d, const tdata_t s, tsize_t c)
 321 {
 322         CopyMemory(d, s, c);
 323 }
 324
 325 int
 326 _TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
 327 {
 328         register const BYTE *pb1 = (const BYTE *) p1;
 329         register const BYTE *pb2 = (const BYTE *) p2;
 330         register DWORD dwTmp = c;
 331         register int iTmp;
 332         for (iTmp = 0; dwTmp-- && !iTmp; iTmp = (int)*pb1++ - (int)*pb2++)
 333                 ;
 334         return (iTmp);
 335 }
 336
 337 static void
 338 Win32WarningHandler(const char* module, const char* fmt, va_list ap)
 339 {
 340 #ifndef TIF_PLATFORM_CONSOLE
 341         LPTSTR szTitle;
 342         LPTSTR szTmp;
 343         LPCTSTR szTitleText = "%s Warning";
 344         LPCTSTR szDefaultModule = "LIBTIFF";
 345         LPCTSTR szTmpModule = (module == NULL) ? szDefaultModule : module;
 346         if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmpModule) +
 347                 strlen(szTitleText) + strlen(fmt) + 128)*sizeof(char))) == NULL)
 348                 return;
 349         sprintf(szTitle, szTitleText, szTmpModule);
 350         szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char);
 351         vsprintf(szTmp, fmt, ap);
 352         MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION);
 353         LocalFree(szTitle);
 354         return;
 355 #else
 356         if (module != NULL)
 357                 fprintf(stderr, "%s: ", module);
 358         fprintf(stderr, "Warning, ");
 359         vfprintf(stderr, fmt, ap);
 360         fprintf(stderr, ".\n");
 361 #endif
 362 }
 363 TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler;
 364
 365 static void
 366 Win32ErrorHandler(const char* module, const char* fmt, va_list ap)
 367 {
 368 #ifndef TIF_PLATFORM_CONSOLE
 369         LPTSTR szTitle;
 370         LPTSTR szTmp;
 371         LPCTSTR szTitleText = "%s Error";
 372         LPCTSTR szDefaultModule = "LIBTIFF";
 373         LPCTSTR szTmpModule = (module == NULL) ? szDefaultModule : module;
 374         if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (strlen(szTmpModule) +
 375                 strlen(szTitleText) + strlen(fmt) + 128)*sizeof(char))) == NULL)
 376                 return;
 377         sprintf(szTitle, szTitleText, szTmpModule);
 378         szTmp = szTitle + (strlen(szTitle)+2)*sizeof(char);
 379         vsprintf(szTmp, fmt, ap);
 380         MessageBoxA(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION);
 381         LocalFree(szTitle);
 382         return;
 383 #else
 384         if (module != NULL)
 385                 fprintf(stderr, "%s: ", module);
 386         vfprintf(stderr, fmt, ap);
 387         fprintf(stderr, ".\n");
 388 #endif
 389 }
 390 TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler;
 391
 392 /* vim: set ts=8 sts=8 sw=8 noet: */