/* $Header: /cvs/maptools/cvsroot/libtiff/libtiff/Attic/tif_win3.c,v 1.2.2.1 2010-06-08 18:50:43 bfriesen 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] = { '\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;

/*

 * Local Variables:

 * mode: c

 * c-basic-offset: 8

 * fill-column: 78

 * End:

 */