tif_win3.c
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上传日期:2014-07-20
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- /* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/tif_win3.c,v 1.2 2005/12/21 12:23:13 joris Exp $ */
- /*
- * 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 Windows 3.x-specific Routines.
- */
- #include "tiffiop.h"
- #if defined(__WATCOMC__) || defined(__BORLANDC__) || defined(_MSC_VER)
- #include <io.h> /* for open, close, etc. function prototypes */
- #endif
- #include <windows.h>
- #include <windowsx.h>
- #include <memory.h>
- static tsize_t
- _tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
- {
- return (_hread(fd, buf, size));
- }
- static tsize_t
- _tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
- {
- return (_hwrite(fd, buf, size));
- }
- static toff_t
- _tiffSeekProc(thandle_t fd, toff_t off, int whence)
- {
- return (_llseek(fd, (off_t) off, whence));
- }
- static int
- _tiffCloseProc(thandle_t fd)
- {
- return (_lclose(fd));
- }
- #include <sys/stat.h>
- static toff_t
- _tiffSizeProc(thandle_t fd)
- {
- struct stat sb;
- return (fstat((int) fd, &sb) < 0 ? 0 : sb.st_size);
- }
- 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)
- {
- }
- /*
- * 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";
- int m, fd;
- OFSTRUCT of;
- int mm = 0;
- m = _TIFFgetMode(mode, module);
- if (m == -1)
- return ((TIFF*)0);
- if (m & O_CREAT) {
- if ((m & O_TRUNC) || OpenFile(name, &of, OF_EXIST) != HFILE_ERROR)
- mm |= OF_CREATE;
- }
- if (m & O_WRONLY)
- mm |= OF_WRITE;
- if (m & O_RDWR)
- mm |= OF_READWRITE;
- fd = OpenFile(name, &of, mm);
- if (fd < 0) {
- TIFFErrorExt(0, module, "%s: Cannot open", name);
- return ((TIFF*)0);
- }
- return (TIFFFdOpen(fd, name, mode));
- }
- tdata_t
- _TIFFmalloc(tsize_t s)
- {
- return (tdata_t) GlobalAllocPtr(GHND, (DWORD) s);
- }
- void
- _TIFFfree(tdata_t p)
- {
- GlobalFreePtr(p);
- }
- tdata_t
- _TIFFrealloc(tdata_t p, tsize_t s)
- {
- return (tdata_t) GlobalReAllocPtr(p, (DWORD) s, GHND);
- }
- void
- _TIFFmemset(tdata_t p, int v, tsize_t c)
- {
- char* pp = (char*) p;
- while (c > 0) {
- tsize_t chunk = 0x10000 - ((uint32) pp & 0xffff);/* What's left in segment */
- if (chunk > 0xff00) /* No more than 0xff00 */
- chunk = 0xff00;
- if (chunk > c) /* No more than needed */
- chunk = c;
- memset(pp, v, chunk);
- pp = (char*) (chunk + (char huge*) pp);
- c -= chunk;
- }
- }
- void
- _TIFFmemcpy(tdata_t d, const tdata_t s, tsize_t c)
- {
- if (c > 0xFFFF)
- hmemcpy((void _huge*) d, (void _huge*) s, c);
- else
- (void) memcpy(d, s, (size_t) c);
- }
- int
- _TIFFmemcmp(const tdata_t d, const tdata_t s, tsize_t c)
- {
- char* dd = (char*) d;
- char* ss = (char*) s;
- tsize_t chunks, chunkd, chunk;
- int result;
- while (c > 0) {
- chunks = 0x10000 - ((uint32) ss & 0xffff); /* What's left in segment */
- chunkd = 0x10000 - ((uint32) dd & 0xffff); /* What's left in segment */
- chunk = c; /* Get the largest of */
- if (chunk > chunks) /* c, chunks, chunkd, */
- chunk = chunks; /* 0xff00 */
- if (chunk > chunkd)
- chunk = chunkd;
- if (chunk > 0xff00)
- chunk = 0xff00;
- result = memcmp(dd, ss, chunk);
- if (result != 0)
- return (result);
- dd = (char*) (chunk + (char huge*) dd);
- ss = (char*) (chunk + (char huge*) ss);
- c -= chunk;
- }
- return (0);
- }
- static void
- win3WarningHandler(const char* module, const char* fmt, va_list ap)
- {
- char e[512] = { ' ' };
- if (module != NULL)
- strcat(strcpy(e, module), ":");
- vsprintf(e+strlen(e), fmt, ap);
- strcat(e, ".");
- MessageBox(GetActiveWindow(), e, "LibTIFF Warning",
- MB_OK|MB_ICONEXCLAMATION);
- }
- TIFFErrorHandler _TIFFwarningHandler = win3WarningHandler;
- static void
- win3ErrorHandler(const char* module, const char* fmt, va_list ap)
- {
- char e[512] = { ' ' };
- if (module != NULL)
- strcat(strcpy(e, module), ":");
- vsprintf(e+strlen(e), fmt, ap);
- strcat(e, ".");
- MessageBox(GetActiveWindow(), e, "LibTIFF Error", MB_OK|MB_ICONSTOP);
- }
- TIFFErrorHandler _TIFFerrorHandler = win3ErrorHandler;