source: trunk/third/tiff/libtiff/tif_win32.c @ 18174

Revision 18174, 7.9 KB checked in by ghudson, 22 years ago (diff)
This commit was generated by cvs2svn to compensate for changes in r18173, which included commits to RCS files with non-trunk default branches.
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[18173]1/* $Header: /afs/dev.mit.edu/source/repository/third/tiff/libtiff/tif_win32.c,v 1.1.1.1 2002-12-26 02:38:18 ghudson Exp $ */
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 <windows.h>
32#include "tiffiop.h"
33
34static tsize_t
35_tiffReadProc(thandle_t fd, tdata_t buf, tsize_t size)
36{
37        DWORD dwSizeRead;
38        if (!ReadFile(fd, buf, size, &dwSizeRead, NULL))
39                return(0);
40        return ((tsize_t) dwSizeRead);
41}
42
43static tsize_t
44_tiffWriteProc(thandle_t fd, tdata_t buf, tsize_t size)
45{
46        DWORD dwSizeWritten;
47        if (!WriteFile(fd, buf, size, &dwSizeWritten, NULL))
48                return(0);
49        return ((tsize_t) dwSizeWritten);
50}
51
52static toff_t
53_tiffSeekProc(thandle_t fd, toff_t off, int whence)
54{
55        DWORD dwMoveMethod, dwMoveHigh;
56
57        /* we use this as a special code, so avoid accepting it */
58        if( off == 0xFFFFFFFF )
59            return 0xFFFFFFFF;
60       
61        switch(whence)
62        {
63        case SEEK_SET:
64                dwMoveMethod = FILE_BEGIN;
65                break;
66        case SEEK_CUR:
67                dwMoveMethod = FILE_CURRENT;
68                break;
69        case SEEK_END:
70                dwMoveMethod = FILE_END;
71                break;
72        default:
73                dwMoveMethod = FILE_BEGIN;
74                break;
75        }
76        dwMoveHigh = 0;
77        return ((toff_t)SetFilePointer(fd, (LONG) off, (PLONG)&dwMoveHigh,
78                                       dwMoveMethod));
79}
80
81static int
82_tiffCloseProc(thandle_t fd)
83{
84        return (CloseHandle(fd) ? 0 : -1);
85}
86
87static toff_t
88_tiffSizeProc(thandle_t fd)
89{
90        return ((toff_t)GetFileSize(fd, NULL));
91}
92
93#ifdef __BORLANDC__
94#pragma argsused
95#endif
96static int
97_tiffDummyMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
98{
99        return (0);
100}
101
102/*
103 * From "Hermann Josef Hill" <lhill@rhein-zeitung.de>:
104 *
105 * Windows uses both a handle and a pointer for file mapping,
106 * but according to the SDK documentation and Richter's book
107 * "Advanced Windows Programming" it is safe to free the handle
108 * after obtaining the file mapping pointer
109 *
110 * This removes a nasty OS dependency and cures a problem
111 * with Visual C++ 5.0
112 */
113static int
114_tiffMapProc(thandle_t fd, tdata_t* pbase, toff_t* psize)
115{
116        toff_t size;
117        HANDLE hMapFile;
118
119        if ((size = _tiffSizeProc(fd)) == 0xFFFFFFFF)
120                return (0);
121        hMapFile = CreateFileMapping(fd, NULL, PAGE_READONLY, 0, size, NULL);
122        if (hMapFile == NULL)
123                return (0);
124        *pbase = MapViewOfFile(hMapFile, FILE_MAP_READ, 0, 0, 0);
125        CloseHandle(hMapFile);
126        if (*pbase == NULL)
127                return (0);
128        *psize = size;
129        return(1);
130}
131
132#ifdef __BORLANDC__
133#pragma argsused
134#endif
135static void
136_tiffDummyUnmapProc(thandle_t fd, tdata_t base, toff_t size)
137{
138}
139
140static void
141_tiffUnmapProc(thandle_t fd, tdata_t base, toff_t size)
142{
143        UnmapViewOfFile(base);
144}
145
146/*
147 * Open a TIFF file descriptor for read/writing.
148 * Note that TIFFFdOpen and TIFFOpen recognise the character 'u' in the mode
149 * string, which forces the file to be opened unmapped.
150 */
151TIFF*
152TIFFFdOpen(int ifd, const char* name, const char* mode)
153{
154        TIFF* tif;
155        BOOL fSuppressMap = (mode[1] == 'u' || (mode[1]!=0 && mode[2] == 'u'));
156
157        tif = TIFFClientOpen(name, mode,
158                 (thandle_t)ifd,
159            _tiffReadProc, _tiffWriteProc,
160            _tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
161                 fSuppressMap ? _tiffDummyMapProc : _tiffMapProc,
162                 fSuppressMap ? _tiffDummyUnmapProc : _tiffUnmapProc);
163        if (tif)
164                tif->tif_fd = ifd;
165        return (tif);
166}
167
168/*
169 * Open a TIFF file for read/writing.
170 */
171TIFF*
172TIFFOpen(const char* name, const char* mode)
173{
174        static const char module[] = "TIFFOpen";
175        thandle_t fd;
176        int m;
177        DWORD dwMode;
178
179        m = _TIFFgetMode(mode, module);
180
181        switch(m)
182        {
183        case O_RDONLY:
184                dwMode = OPEN_EXISTING;
185                break;
186        case O_RDWR:
187                dwMode = OPEN_ALWAYS;
188                break;
189        case O_RDWR|O_CREAT:
190                dwMode = OPEN_ALWAYS;
191                break;
192        case O_RDWR|O_TRUNC:
193                dwMode = CREATE_ALWAYS;
194                break;
195        case O_RDWR|O_CREAT|O_TRUNC:
196                dwMode = CREATE_ALWAYS;
197                break;
198        default:
199                return ((TIFF*)0);
200        }
201        fd = (thandle_t)CreateFile(name, (m == O_RDONLY) ? GENERIC_READ :
202                        (GENERIC_READ | GENERIC_WRITE), FILE_SHARE_READ, NULL, dwMode,
203                        (m == O_RDONLY) ? FILE_ATTRIBUTE_READONLY : FILE_ATTRIBUTE_NORMAL, NULL);
204        if (fd == INVALID_HANDLE_VALUE) {
205                TIFFError(module, "%s: Cannot open", name);
206                return ((TIFF *)0);
207        }
208        return (TIFFFdOpen((int)fd, name, mode));
209}
210
211tdata_t
212_TIFFmalloc(tsize_t s)
213{
214        return ((tdata_t)GlobalAlloc(GMEM_FIXED, s));
215}
216
217void
218_TIFFfree(tdata_t p)
219{
220        GlobalFree(p);
221        return;
222}
223
224tdata_t
225_TIFFrealloc(tdata_t p, tsize_t s)
226{
227  void* pvTmp;
228  tsize_t old=GlobalSize(p);
229  if (old>=s)
230    {
231      if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) {
232        CopyMemory(pvTmp, p, s);
233        GlobalFree(p);
234      }
235    }
236  else
237    {
238      if ((pvTmp = GlobalAlloc(GMEM_FIXED, s)) != NULL) {
239        CopyMemory(pvTmp, p, old);
240        GlobalFree(p);
241      }
242    }
243  return ((tdata_t)pvTmp);
244}
245
246void
247_TIFFmemset(void* p, int v, tsize_t c)
248{
249        FillMemory(p, c, (BYTE)v);
250}
251
252void
253_TIFFmemcpy(void* d, const tdata_t s, tsize_t c)
254{
255        CopyMemory(d, s, c);
256}
257
258int
259_TIFFmemcmp(const tdata_t p1, const tdata_t p2, tsize_t c)
260{
261        register const BYTE *pb1 = (const BYTE *) p1;
262        register const BYTE *pb2 = (const BYTE *) p2;
263        register DWORD dwTmp = c;
264        register int iTmp;
265        for (iTmp = 0; dwTmp-- && !iTmp; iTmp = (int)*pb1++ - (int)*pb2++)
266                ;
267        return (iTmp);
268}
269
270static void
271Win32WarningHandler(const char* module, const char* fmt, va_list ap)
272{
273#ifndef TIF_PLATFORM_CONSOLE
274        LPTSTR szTitle;
275        LPTSTR szTmp;
276        LPCTSTR szTitleText = "%s Warning";
277        LPCTSTR szDefaultModule = "TIFFLIB";
278        szTmp = (module == NULL) ? (LPTSTR)szDefaultModule : (LPTSTR)module;
279        if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (lstrlen(szTmp) +
280                        lstrlen(szTitleText) + lstrlen(fmt) + 128)*sizeof(TCHAR))) == NULL)
281                return;
282        wsprintf(szTitle, szTitleText, szTmp);
283        szTmp = szTitle + (lstrlen(szTitle)+2)*sizeof(TCHAR);
284        wvsprintf(szTmp, fmt, ap);
285        MessageBox(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONINFORMATION);
286        LocalFree(szTitle);
287        return;
288#else
289        if (module != NULL)
290                fprintf(stderr, "%s: ", module);
291        fprintf(stderr, "Warning, ");
292        vfprintf(stderr, fmt, ap);
293        fprintf(stderr, ".\n");
294#endif       
295}
296TIFFErrorHandler _TIFFwarningHandler = Win32WarningHandler;
297
298static void
299Win32ErrorHandler(const char* module, const char* fmt, va_list ap)
300{
301#ifndef TIF_PLATFORM_CONSOLE
302        LPTSTR szTitle;
303        LPTSTR szTmp;
304        LPCTSTR szTitleText = "%s Error";
305        LPCTSTR szDefaultModule = "TIFFLIB";
306        szTmp = (module == NULL) ? (LPTSTR)szDefaultModule : (LPTSTR)module;
307        if ((szTitle = (LPTSTR)LocalAlloc(LMEM_FIXED, (lstrlen(szTmp) +
308                        lstrlen(szTitleText) + lstrlen(fmt) + 128)*sizeof(TCHAR))) == NULL)
309                return;
310        wsprintf(szTitle, szTitleText, szTmp);
311        szTmp = szTitle + (lstrlen(szTitle)+2)*sizeof(TCHAR);
312        wvsprintf(szTmp, fmt, ap);
313        MessageBox(GetFocus(), szTmp, szTitle, MB_OK | MB_ICONEXCLAMATION);
314        LocalFree(szTitle);
315        return;
316#else
317        if (module != NULL)
318                fprintf(stderr, "%s: ", module);
319        vfprintf(stderr, fmt, ap);
320        fprintf(stderr, ".\n");
321#endif       
322}
323TIFFErrorHandler _TIFFerrorHandler = Win32ErrorHandler;
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