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/* Copyright (C) 2000-2011 by George Williams */
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#ifdef _NO_LIBTIFF
static int a_file_must_define_something=0; /* ANSI says so */
#elif !defined(_STATIC_LIBTIFF) && !defined(NODYNAMIC) /* I don't know how to deal with dynamic libs on mac OS/X, hence this */
#include <dynamic.h>
#include <tiffio.h>
#define int32 _int32
#define uint32 _uint32
#define int16 _int16
#define uint16 _uint16
#define int8 _int8
#define uint8 _uint8
#include "gimage.h"
static DL_CONST void *libtiff=NULL;
static TIFF *(*_TIFFOpen)(char *, char *);
static void (*_TIFFGetField)(TIFF *, int, uint32 *);
static int (*_TIFFReadRGBAImage)(TIFF *, uint32, uint32, uint32 *, int);
static int (*_TIFFClose)(TIFF *);
static int loadtiff() {
libtiff = dlopen("libtiff" SO_EXT,RTLD_LAZY);
if ( libtiff==NULL ) {
fprintf(stderr,"%s\n", dlerror());
return( 0 );
}
_TIFFOpen = (TIFF *(*)(char *, char *)) dlsym(libtiff,"TIFFOpen");
_TIFFGetField = (void (*)(TIFF *, int, uint32 *))
dlsym(libtiff,"TIFFGetField");
_TIFFReadRGBAImage = (int (*)(TIFF *, uint32, uint32, uint32 *, int))
dlsym(libtiff,"TIFFReadRGBAImage");
_TIFFClose = (int (*)(TIFF *)) dlsym(libtiff,"TIFFClose");
if ( _TIFFOpen && _TIFFGetField && _TIFFReadRGBAImage && _TIFFClose )
return( 1 );
dlclose(libtiff);
fprintf(stderr,"%s\n", dlerror());
return( 0 );
}
GImage *GImageReadTiff(char *filename) {
TIFF* tif;
uint32 w, h, i,j;
uint32 *ipt, *fpt;
size_t npixels;
uint32* raster;
GImage *ret=NULL;
struct _GImage *base;
if ( libtiff==NULL )
if ( !loadtiff())
return( NULL );
tif = _TIFFOpen(filename, "r");
if (tif==NULL )
return( ret );
_TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
_TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
npixels = w * h;
raster = (uint32*) galloc(npixels * sizeof (uint32));
if (raster != NULL) {
if (_TIFFReadRGBAImage(tif, w, h, raster, 0)) {
ret = GImageCreate(it_true,w,h);
if ( ret!=NULL ) {
base = ret->u.image;
for ( i=0; i<h; ++i ) {
ipt = (uint32 *) (base->data+i*base->bytes_per_line);
fpt = raster+(h-1-i)*w;
for ( j=0; j<w; ++j )
*ipt++ = COLOR_CREATE(
TIFFGetR(fpt[j]), TIFFGetG(fpt[j]), TIFFGetB(fpt[j]));
}
}
}
gfree(raster);
}
_TIFFClose(tif);
return( ret );
}
#else
#include <tiffio.h>
#define int32 _int32
#define uint32 _uint32
#define int16 _int16
#define uint16 _uint16
#define int8 _int8
#define uint8 _uint8
#include "gimage.h"
#undef uint32
GImage *GImageReadTiff(char *filename) {
TIFF* tif;
uint32 w, h, i,j;
uint32 *ipt, *fpt;
size_t npixels;
uint32* raster;
GImage *ret=NULL;
struct _GImage *base;
tif = TIFFOpen(filename, "r");
if (tif==NULL )
return( ret );
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &h);
npixels = w * h;
raster = (uint32*) galloc(npixels * sizeof (uint32));
if (raster != NULL) {
if (TIFFReadRGBAImage(tif, w, h, raster, 0)) {
ret = GImageCreate(it_true,w,h);
if ( ret!=NULL ) {
base = ret->u.image;
for ( i=0; i<h; ++i ) {
ipt = (uint32 *) (base->data+i*base->bytes_per_line);
fpt = raster+(h-1-i)*w;
for ( j=0; j<w; ++j )
*ipt++ = COLOR_CREATE(
TIFFGetR(fpt[j]), TIFFGetG(fpt[j]), TIFFGetB(fpt[j]));
}
}
}
gfree(raster);
}
TIFFClose(tif);
return( ret );
}
#endif
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