forked from enlightenment/efl
trga loader - snarfed 80% from imlib2. missing paletted mode (just
like the imlib2 one) but.. handles alpha correctly- unlike imlib2 and manyother loaders. SVN revision: 49330
This commit is contained in:
parent
2cf09cdc4a
commit
9621532945
|
@ -118,6 +118,7 @@ want_evas_image_loader_svg="yes"
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want_evas_image_loader_tiff="yes"
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want_evas_image_loader_xpm="yes"
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want_evas_image_loader_bmp="yes"
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want_evas_image_loader_tga="yes"
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want_evas_font_loader_eet="yes"
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@ -695,6 +696,8 @@ EVAS_CHECK_IMAGE_LOADER([XPM], [${want_evas_image_loader_xpm}])
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EVAS_CHECK_IMAGE_LOADER([BMP], [${want_evas_image_loader_bmp}])
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EVAS_CHECK_IMAGE_LOADER([TGA], [${want_evas_image_loader_tga}])
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#####################################################################
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## Cpu based optimizations
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@ -1410,6 +1413,7 @@ src/modules/loaders/png/Makefile
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src/modules/loaders/tiff/Makefile
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src/modules/loaders/xpm/Makefile
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src/modules/loaders/bmp/Makefile
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src/modules/loaders/tga/Makefile
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src/modules/loaders/svg/Makefile
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src/modules/loaders/pmaps/Makefile
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src/modules/savers/Makefile
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@ -327,6 +327,26 @@ fi
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])
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dnl use: EVAS_CHECK_LOADER_DEP_TGA(loader, want_static[, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
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AC_DEFUN([EVAS_CHECK_LOADER_DEP_TGA],
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[
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have_dep="yes"
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evas_image_loader_[]$1[]_cflags=""
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evas_image_loader_[]$1[]_libs=""
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AC_SUBST([evas_image_loader_$1_cflags])
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AC_SUBST([evas_image_loader_$1_libs])
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if test "x${have_dep}" = "xyes" ; then
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m4_default([$3], [:])
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else
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m4_default([$4], [:])
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fi
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])
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dnl use: EVAS_CHECK_IMAGE_LOADER(loader, want_loader, macro)
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@ -32,12 +32,13 @@ static const struct ext_loader_s loaders[] =
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{ "pgm", "pmaps" },
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{ "ppm", "pmaps" },
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{ "pnm", "pmaps" },
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{ "bmp", "bmp" }
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{ "bmp", "bmp" },
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{ "tga", "tga" }
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};
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static const char *loaders_name[] =
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{
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"png", "jpeg", "eet", "xpm", "tiff", "gif", "svg", "pmaps", "edb", "bmp"
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"png", "jpeg", "eet", "xpm", "tiff", "gif", "svg", "pmaps", "edb", "bmp", "tga"
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};
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struct evas_image_foreach_loader_data
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@ -62,3 +62,9 @@ SUBDIRS += bmp
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endif
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endif
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if BUILD_LOADER_TGA
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if !EVAS_STATIC_BUILD_TGA
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SUBDIRS += tga
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endif
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endif
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@ -0,0 +1,32 @@
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MAINTAINERCLEANFILES = Makefile.in
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AM_CPPFLAGS = \
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-I. \
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-I$(top_srcdir)/src/lib \
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-I$(top_srcdir)/src/lib/include \
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@FREETYPE_CFLAGS@ \
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@EINA_CFLAGS@ \
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@EVIL_CFLAGS@ \
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@WIN32_CPPFLAGS@
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if BUILD_LOADER_TGA
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if !EVAS_STATIC_BUILD_TGA
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pkgdir = $(libdir)/evas/modules/loaders/tga/$(MODULE_ARCH)
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pkg_LTLIBRARIES = module.la
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module_la_SOURCES = evas_image_load_tga.c
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module_la_LIBADD = @EINA_LIBS@ @EVIL_LIBS@ $(top_builddir)/src/lib/libevas.la
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module_la_LDFLAGS = -no-undefined @lt_enable_auto_import@ -module -avoid-version
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module_la_LIBTOOLFLAGS = --tag=disable-static
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else
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noinst_LTLIBRARIES = libevas_loader_tga.la
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libevas_loader_png_la_SOURCES = evas_image_load_tga.c
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libevas_loader_png_la_LIBADD =
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endif
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endif
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@ -0,0 +1,546 @@
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#ifndef _GNU_SOURCE
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#define _GNU_SOURCE
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#endif
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#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#ifdef HAVE_EVIL
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# include <Evil.h>
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#endif
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#include "evas_common.h"
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#include "evas_private.h"
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/* TGA pixel formats */
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#define TGA_TYPE_MAPPED 1 // handle
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#define TGA_TYPE_COLOR 2
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#define TGA_TYPE_GRAY 3
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#define TGA_TYPE_MAPPED_RLE 9 // handle
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#define TGA_TYPE_COLOR_RLE 10
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#define TGA_TYPE_GRAY_RLE 11
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/* TGA header flags */
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#define TGA_DESC_ABITS 0x0f
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#define TGA_DESC_HORIZONTAL 0x10
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#define TGA_DESC_VERTICAL 0x20
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#define TGA_SIGNATURE "TRUEVISION-XFILE"
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typedef struct
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{
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unsigned char idLength;
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unsigned char colorMapType;
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unsigned char imageType;
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unsigned char colorMapIndexLo, colorMapIndexHi;
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unsigned char colorMapLengthLo, colorMapLengthHi;
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unsigned char colorMapSize;
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unsigned char xOriginLo, xOriginHi;
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unsigned char yOriginLo, yOriginHi;
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unsigned char widthLo, widthHi;
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unsigned char heightLo, heightHi;
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unsigned char bpp;
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unsigned char descriptor;
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} tga_header;
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typedef struct
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{
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unsigned int extensionAreaOffset;
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unsigned int developerDirectoryOffset;
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char signature[16];
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char dot;
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char null;
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} tga_footer;
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static Eina_Bool evas_image_load_file_head_tga(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
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static Eina_Bool evas_image_load_file_data_tga(Image_Entry *ie, const char *file, const char *key, int *error) EINA_ARG_NONNULL(1, 2, 4);
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static Evas_Image_Load_Func evas_image_load_tga_func =
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{
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EINA_TRUE,
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evas_image_load_file_head_tga,
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evas_image_load_file_data_tga
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};
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static int
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read_short(FILE *file, short *ret)
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{
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unsigned char b[2];
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if (E_FREAD(b, sizeof(unsigned char), 2, file) != 2) return 0;
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*ret = (b[1] << 8) | b[0];
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return 1;
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}
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static int
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read_int(FILE *file, int *ret)
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{
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unsigned char b[4];
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if (E_FREAD(b, sizeof(unsigned char), 4, file) != 4) return 0;
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*ret = (b[3] << 24) | (b[2] << 16) | (b[1] << 8) | b[0];
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return 1;
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}
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static Eina_Bool
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evas_image_load_file_head_tga(Image_Entry *ie, const char *file, const char *key __UNUSED__, int *error)
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{
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int fd;
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unsigned char *seg = MAP_FAILED, *filedata;
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struct stat ss;
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tga_header *header;
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tga_footer *footer;
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char hasa = 0, footer_present = 0, vinverted = 0, rle = 0;
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int w = 0, h = 0, bpp;
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fd = open(file, O_RDONLY);
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*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
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if (fd < 0) return EINA_FALSE;
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if (fstat(fd, &ss) < 0) goto close_file;
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*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
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if (ss.st_size < (sizeof(tga_header) + sizeof(tga_footer))) goto close_file;
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seg = mmap(0, ss.st_size, PROT_READ, MAP_SHARED, fd, 0);
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if (seg == MAP_FAILED) goto close_file;
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filedata = seg;
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header = (tga_header *)filedata;
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// no unaligned data accessed, so ok
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footer = (tga_footer *)(filedata + (ss.st_size - sizeof(tga_footer)));
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if (!memcmp(footer->signature, TGA_SIGNATURE, sizeof(footer->signature)))
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{
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// footer is ther and matches. this is a tga file - any problems now
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// are a corrupt file
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*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
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footer_present = 1;
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}
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filedata = (char *)filedata + sizeof(tga_header);
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vinverted = !(header->descriptor & TGA_DESC_VERTICAL);
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switch (header->imageType)
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{
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case TGA_TYPE_COLOR_RLE:
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case TGA_TYPE_GRAY_RLE:
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rle = 1;
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break;
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case TGA_TYPE_COLOR:
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case TGA_TYPE_GRAY:
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rle = 0;
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break;
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default:
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goto close_file;
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}
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bpp = header->bpp;
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if (!((bpp == 32) || (bpp == 24) || (bpp == 16) || (bpp == 8)))
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goto close_file;
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if ((bpp == 32) && (header->descriptor & TGA_DESC_ABITS)) hasa = 1;
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w = (header->widthHi << 8) | header->widthLo;
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h = (header->heightHi << 8) | header->heightLo;
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if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) ||
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IMG_TOO_BIG(w, h))
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goto close_file;
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ie->w = w;
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ie->h = h;
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if (hasa) ie->flags.alpha = 1;
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if (seg != MAP_FAILED) munmap(seg, ss.st_size);
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close(fd);
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*error = EVAS_LOAD_ERROR_NONE;
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return EINA_TRUE;
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close_file:
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if (seg != MAP_FAILED) munmap(seg, ss.st_size);
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close(fd);
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return EINA_FALSE;
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}
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static Eina_Bool
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evas_image_load_file_data_tga(Image_Entry *ie, const char *file, const char *key __UNUSED__, int *error)
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{
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int fd;
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unsigned char *seg = MAP_FAILED, *filedata;
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struct stat ss;
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tga_header *header;
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tga_footer *footer;
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char hasa = 0, footer_present = 0, vinverted = 0, rle = 0;
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int w = 0, h = 0, x, y, bpp;
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unsigned int *surface, *dataptr;
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unsigned int datasize;
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unsigned char *bufptr, *bufend;
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fd = open(file, O_RDONLY);
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*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
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if (fd < 0) return EINA_FALSE;
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if (fstat(fd, &ss) < 0) goto close_file;
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*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
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if (ss.st_size < (sizeof(tga_header) + sizeof(tga_footer))) goto close_file;
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seg = mmap(0, ss.st_size, PROT_READ, MAP_SHARED, fd, 0);
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if (seg == MAP_FAILED) goto close_file;
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filedata = seg;
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header = (tga_header *)filedata;
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// no unaligned data accessed, so ok
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footer = (tga_footer *)(filedata + (ss.st_size - sizeof(tga_footer)));
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if (!memcmp(footer->signature, TGA_SIGNATURE, sizeof(footer->signature)))
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{
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// footer is ther and matches. this is a tga file - any problems now
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// are a corrupt file
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*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
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footer_present = 1;
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}
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filedata = (char *)filedata + sizeof(tga_header);
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vinverted = !(header->descriptor & TGA_DESC_VERTICAL);
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switch (header->imageType)
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{
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case TGA_TYPE_COLOR_RLE:
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case TGA_TYPE_GRAY_RLE:
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rle = 1;
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break;
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case TGA_TYPE_COLOR:
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case TGA_TYPE_GRAY:
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rle = 0;
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break;
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default:
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goto close_file;
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}
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bpp = header->bpp;
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if (!((bpp == 32) || (bpp == 24) || (bpp == 16) || (bpp == 8)))
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goto close_file;
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if ((bpp == 32) && (header->descriptor & TGA_DESC_ABITS)) hasa = 1;
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w = (header->widthHi << 8) | header->widthLo;
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h = (header->heightHi << 8) | header->heightLo;
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if ((w < 1) || (h < 1) || (w > IMG_MAX_SIZE) || (h > IMG_MAX_SIZE) ||
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IMG_TOO_BIG(w, h))
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goto close_file;
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if ((w != ie->w) || (h != ie->h))
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{
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*error = EVAS_LOAD_ERROR_GENERIC;
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goto close_file;
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}
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evas_cache_image_surface_alloc(ie, w, h);
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surface = evas_cache_image_pixels(ie);
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if (!surface)
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{
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*error = EVAS_LOAD_ERROR_RESOURCE_ALLOCATION_FAILED;
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goto close_file;
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}
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datasize = ss.st_size - sizeof(tga_header) - header->idLength;
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if (footer_present)
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datasize = ss.st_size - sizeof(tga_header) - header->idLength -
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sizeof(tga_footer);
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bufptr = filedata + header->idLength;
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bufend = filedata + datasize;
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dataptr = surface;
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if (!rle)
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{
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for (y = 0; y < h; y++)
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{
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if (vinverted)
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/* some TGA's are stored upside-down! */
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dataptr = surface + ((h - y - 1) * w);
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else
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dataptr = surface + (y * w);
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switch (bpp)
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{
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case 32:
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for (x = 0; (x < w) && ((bufptr + 4) <= bufend); x++)
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{
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if (hasa)
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*dataptr =
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((255 - bufptr[3]) << 24) | (bufptr[2] << 16) |
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(bufptr[1] << 8) | (bufptr[0] );
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else
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*dataptr =
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(0xff << 24) | (bufptr[2] << 16) |
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(bufptr[1] << 8) | (bufptr[0] );
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dataptr++;
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bufptr += 4;
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}
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break;
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case 24:
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for (x = 0; (x < w) && ((bufptr + 3) <= bufend); x++)
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{
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*dataptr =
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(0xff << 24) | (bufptr[2] << 16) |
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(bufptr[1] << 8) | (bufptr[0] );
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dataptr++;
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bufptr += 3;
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}
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break;
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case 16:
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for (x = 0; (x < w) && ((bufptr + 3) <= bufend); x++)
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{
|
||||
unsigned char r, g, b, a;
|
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unsigned short tmp;
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|
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tmp =
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(((unsigned short)bufptr[1]) << 8) |
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(((unsigned short)bufptr[0]));
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r = (tmp >> 7) & 0xf8; r |= r >> 5;
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g = (tmp >> 2) & 0xf8; g |= g >> 5;
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b = (tmp << 3) & 0xf8; b |= b >> 5;
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a = 0xff;
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if ((hasa) && (tmp & 0x8000)) a = 0;
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*dataptr =
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(a << 24) | (r << 16) |
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(g << 8) | (b );
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dataptr++;
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bufptr += 2;
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||||
}
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break;
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case 8:
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for (x = 0; (x < w) && ((bufptr + 1) <= bufend); x++)
|
||||
{
|
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*dataptr =
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(0xff << 24) | (bufptr[0] << 16) |
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(bufptr[0] << 8) | (bufptr[0] );
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dataptr++;
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bufptr += 1;
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||||
}
|
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break;
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default:
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break;
|
||||
}
|
||||
}
|
||||
}
|
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else
|
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{
|
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int count, i;
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unsigned char val;
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unsigned int *dataend;
|
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|
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dataptr = surface;
|
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dataend = dataptr + (w * h);
|
||||
while ((bufptr < bufend) && (dataptr < dataend))
|
||||
{
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val = *bufptr;
|
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bufptr++;
|
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count = (val & 0x7f) + 1;
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if (val & 0x80) // rel packet
|
||||
{
|
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switch (bpp)
|
||||
{
|
||||
case 32:
|
||||
if (bufptr < (bufend - 4))
|
||||
{
|
||||
unsigned char r, g, b, a;
|
||||
|
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a = 255 - bufptr[3];
|
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r = bufptr[2];
|
||||
g = bufptr[1];
|
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b = bufptr[0];
|
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if (!hasa) a = 0xff;
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bufptr += 4;
|
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for (i = 0; (i < count) && (dataptr < dataend); i++)
|
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{
|
||||
*dataptr =
|
||||
(a << 24) | (r << 16) | (g << 8) | (b);
|
||||
dataptr++;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 24:
|
||||
if (bufptr < (bufend - 3))
|
||||
{
|
||||
unsigned char r, g, b;
|
||||
|
||||
r = bufptr[2];
|
||||
g = bufptr[1];
|
||||
b = bufptr[0];
|
||||
bufptr += 3;
|
||||
for (i = 0; (i < count) && (dataptr < dataend); i++)
|
||||
{
|
||||
*dataptr =
|
||||
(0xff << 24) | (r << 16) | (g << 8) | (b);
|
||||
dataptr++;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 16:
|
||||
if (bufptr < (bufend - 2))
|
||||
{
|
||||
unsigned char r, g, b, a;
|
||||
unsigned short tmp;
|
||||
|
||||
tmp =
|
||||
(((unsigned short)bufptr[1]) << 8) |
|
||||
(((unsigned short)bufptr[0]));
|
||||
r = (tmp >> 7) & 0xf8; r |= r >> 5;
|
||||
g = (tmp >> 2) & 0xf8; g |= g >> 5;
|
||||
b = (tmp << 3) & 0xf8; b |= b >> 5;
|
||||
a = 0xff;
|
||||
if ((hasa) && (tmp & 0x8000)) a = 0;
|
||||
bufptr += 2;
|
||||
for (i = 0; (i < count) && (dataptr < dataend); i++)
|
||||
{
|
||||
*dataptr =
|
||||
*dataptr =
|
||||
(a << 24) | (r << 16) |
|
||||
(g << 8) | (b );
|
||||
dataptr++;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case 8:
|
||||
if (bufptr < (bufend - 1))
|
||||
{
|
||||
unsigned char g;
|
||||
|
||||
g = bufptr[0];
|
||||
bufptr += 1;
|
||||
for (i = 0; (i < count) && (dataptr < dataend); i++)
|
||||
{
|
||||
*dataptr =
|
||||
(0xff << 24) | (g << 16) | (g << 8) | (g);
|
||||
dataptr++;
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
else // raw
|
||||
{
|
||||
switch (bpp)
|
||||
{
|
||||
case 32:
|
||||
for (i = 0; (i < count) && (bufptr < (bufend - 4)) && (dataptr < dataend); i++)
|
||||
{
|
||||
if (hasa)
|
||||
*dataptr =
|
||||
((255 - bufptr[3]) << 24) | (bufptr[2] << 16) |
|
||||
(bufptr[1] << 8) | (bufptr[0] );
|
||||
else
|
||||
*dataptr =
|
||||
(0xff << 24) | (bufptr[2] << 16) |
|
||||
(bufptr[1] << 8) | (bufptr[0] );
|
||||
dataptr++;
|
||||
bufptr += 4;
|
||||
}
|
||||
break;
|
||||
case 24:
|
||||
for (i = 0; (i < count) && (bufptr < (bufend - 3)) && (dataptr < dataend); i++)
|
||||
{
|
||||
*dataptr =
|
||||
(0xff << 24) | (bufptr[2] << 16) |
|
||||
(bufptr[1] << 8) | (bufptr[0] );
|
||||
dataptr++;
|
||||
bufptr += 3;
|
||||
}
|
||||
break;
|
||||
case 16:
|
||||
for (i = 0; (i < count) && (bufptr < (bufend - 2)) && (dataptr < dataend); i++)
|
||||
{
|
||||
unsigned char r, g, b, a;
|
||||
unsigned short tmp;
|
||||
|
||||
tmp =
|
||||
(((unsigned short)bufptr[1]) << 8) |
|
||||
(((unsigned short)bufptr[0]));
|
||||
r = (tmp >> 7) & 0xf8; r |= r >> 5;
|
||||
g = (tmp >> 2) & 0xf8; g |= g >> 5;
|
||||
b = (tmp << 3) & 0xf8; b |= b >> 5;
|
||||
a = 0xff;
|
||||
if ((hasa) && (tmp & 0x8000)) a = 0;
|
||||
*dataptr =
|
||||
(a << 24) | (r << 16) |
|
||||
(g << 8) | (b );
|
||||
dataptr++;
|
||||
bufptr += 2;
|
||||
}
|
||||
break;
|
||||
case 8:
|
||||
for (i = 0; (i < count) && (bufptr < (bufend - 1)) && (dataptr < dataend); i++)
|
||||
{
|
||||
*dataptr =
|
||||
(0xff << 24) | (bufptr[0] << 16) |
|
||||
(bufptr[0] << 8) | (bufptr[0] );
|
||||
dataptr++;
|
||||
bufptr += 1;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (vinverted)
|
||||
{
|
||||
unsigned int *adv, *adv2, tmp;
|
||||
|
||||
adv = surface;
|
||||
adv2 = surface + (w * (h - 1));
|
||||
for (y = 0; y < (h / 2); y++)
|
||||
{
|
||||
for (x = 0; x < w; x++)
|
||||
{
|
||||
tmp = adv[x];
|
||||
adv[x] = adv2[x];
|
||||
adv2[x] = tmp;
|
||||
}
|
||||
adv2 -= w;
|
||||
adv += w;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
evas_common_image_premul(ie);
|
||||
|
||||
if (seg != MAP_FAILED) munmap(seg, ss.st_size);
|
||||
close(fd);
|
||||
*error = EVAS_LOAD_ERROR_NONE;
|
||||
return EINA_TRUE;
|
||||
|
||||
close_file:
|
||||
if (seg != MAP_FAILED) munmap(seg, ss.st_size);
|
||||
close(fd);
|
||||
return EINA_FALSE;
|
||||
}
|
||||
|
||||
static int
|
||||
module_open(Evas_Module *em)
|
||||
{
|
||||
if (!em) return 0;
|
||||
em->functions = (void *)(&evas_image_load_tga_func);
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void
|
||||
module_close(Evas_Module *em)
|
||||
{
|
||||
}
|
||||
|
||||
static Evas_Module_Api evas_modapi =
|
||||
{
|
||||
EVAS_MODULE_API_VERSION,
|
||||
"tga",
|
||||
"none",
|
||||
{
|
||||
module_open,
|
||||
module_close
|
||||
}
|
||||
};
|
||||
|
||||
EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_IMAGE_LOADER, image_loader, tga);
|
||||
|
||||
#ifndef EVAS_STATIC_BUILD_TGA
|
||||
EVAS_EINA_MODULE_DEFINE(image_loader, tga);
|
||||
#endif
|
Loading…
Reference in New Issue