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/* $Header: /usr/people/sam/tiff/libtiff/RCS/tif_win3.c,v 1.6 1996/01/10 19:33:17 sam Exp $ */
/*
* Copyright (c) 1988-1996 Sam Leffler
* Copyright (c) 1991-1996 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,
(void*) 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) {
TIFFError(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] = { '\0' };
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] = { '\0' };
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;
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