Differential D10300 Diff 33525 source/blender/imbuf/intern/readimage.c

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source/blender/imbuf/intern/readimage.c

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* allocimbuf.c		* allocimbuf.c
*/		*/

/** \file		/** \file
* \ingroup imbuf		* \ingroup imbuf
*/		*/

#ifdef _WIN32		#ifdef _WIN32
# include "mmap_win.h"
# include <io.h>		# include <io.h>
# include <stddef.h>		# include <stddef.h>
# include <sys/types.h>		# include <sys/types.h>
#endif		#endif

#include "BLI_fileops.h"		#include "BLI_fileops.h"
		#include "BLI_mmap.h"
#include "BLI_path_util.h"		#include "BLI_path_util.h"
#include "BLI_string.h"		#include "BLI_string.h"
#include "BLI_utildefines.h"		#include "BLI_utildefines.h"
#include <stdlib.h>		#include <stdlib.h>

#include "IMB_allocimbuf.h"		#include "IMB_allocimbuf.h"
#include "IMB_filetype.h"		#include "IMB_filetype.h"
#include "IMB_imbuf.h"		#include "IMB_imbuf.h"
▲ Show 20 Lines • Show All 140 Lines • ▼ Show 20 Lines	ImBuf *IMB_loadifffile(

if (imb_is_filepath_format(filepath)) {		if (imb_is_filepath_format(filepath)) {
return IMB_ibImageFromFile(filepath, flags, colorspace, descr);		return IMB_ibImageFromFile(filepath, flags, colorspace, descr);
}		}

size = BLI_file_descriptor_size(file);		size = BLI_file_descriptor_size(file);

imb_mmap_lock();		imb_mmap_lock();
mem = mmap(NULL, size, PROT_READ, MAP_SHARED, file, 0);		BLI_mmap_file *mmap_file = BLI_mmap_open(file);
imb_mmap_unlock();		imb_mmap_unlock();
		if (mmap_file == NULL) {
if (mem == (unsigned char *)-1) {
fprintf(stderr, "%s: couldn't get mapping %s\n", __func__, descr);		fprintf(stderr, "%s: couldn't get mapping %s\n", __func__, descr);
return NULL;		return NULL;
}		}

		mem = BLI_mmap_get_pointer(mmap_file);

ibuf = IMB_ibImageFromMemory(mem, size, flags, colorspace, descr);		ibuf = IMB_ibImageFromMemory(mem, size, flags, colorspace, descr);

imb_mmap_lock();		imb_mmap_lock();
if (munmap(mem, size)) {		BLI_mmap_free(mmap_file);
fprintf(stderr, "%s: couldn't unmap file %s\n", __func__, descr);
}
imb_mmap_unlock();		imb_mmap_unlock();

return ibuf;		return ibuf;
}		}

static void imb_cache_filename(char filename, const char name, int flags)		static void imb_cache_filename(char filename, const char name, int flags)
{		{
/* read .tx instead if it exists and is not older */		/* read .tx instead if it exists and is not older */
▲ Show 20 Lines • Show All 76 Lines • ▼ Show 20 Lines	static void imb_loadtilefile(ImBuf ibuf, int file, int tx, int ty, unsigned int rect)

if (file == -1) {		if (file == -1) {
return;		return;
}		}

size = BLI_file_descriptor_size(file);		size = BLI_file_descriptor_size(file);

imb_mmap_lock();		imb_mmap_lock();
mem = mmap(NULL, size, PROT_READ, MAP_SHARED, file, 0);		BLI_mmap_file *mmap_file = BLI_mmap_open(file);
imb_mmap_unlock();		imb_mmap_unlock();
		if (mmap_file == NULL) {
if (mem == (unsigned char *)-1) {
fprintf(stderr, "Couldn't get memory mapping for %s\n", ibuf->cachename);		fprintf(stderr, "Couldn't get memory mapping for %s\n", ibuf->cachename);
return;		return;
}		}

		mem = BLI_mmap_get_pointer(mmap_file);

const ImFileType *type = IMB_file_type_from_ibuf(ibuf);		const ImFileType *type = IMB_file_type_from_ibuf(ibuf);
if (type != NULL) {		if (type != NULL) {
if (type->load_tile != NULL) {		if (type->load_tile != NULL) {
type->load_tile(ibuf, mem, size, tx, ty, rect);		type->load_tile(ibuf, mem, size, tx, ty, rect);
}		}
}		}

imb_mmap_lock();		imb_mmap_lock();
if (munmap(mem, size)) {		BLI_mmap_free(mmap_file);
fprintf(stderr, "Couldn't unmap memory for %s.\n", ibuf->cachename);
}
imb_mmap_unlock();		imb_mmap_unlock();
}		}

void imb_loadtile(ImBuf ibuf, int tx, int ty, unsigned int rect)		void imb_loadtile(ImBuf ibuf, int tx, int ty, unsigned int rect)
{		{
int file;		int file;

file = BLI_open(ibuf->cachename, O_BINARY \| O_RDONLY, 0);		file = BLI_open(ibuf->cachename, O_BINARY \| O_RDONLY, 0);
if (file == -1) {		if (file == -1) {
return;		return;
}		}

imb_loadtilefile(ibuf, file, tx, ty, rect);		imb_loadtilefile(ibuf, file, tx, ty, rect);

close(file);		close(file);
}		}