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commit 0771cfe21a45ee08d8b5c28639c621580b1e23ec
Author: NRK <n...@disroot.org>
AuthorDate: Wed Feb 26 03:43:12 2025 +0000
AVIF loader: add new loader based on libavif
supports animated avif unlike the libheif loader.
can be slow on 'large' animated images though.
Closes: https://git.enlightenment.org/old/legacy-imlib2/issues/28
---
configure.ac | 2 +
src/lib/loaders.c | 6 +++
src/modules/loaders/Makefile.am | 9 ++++
src/modules/loaders/loader_avif.c | 106 ++++++++++++++++++++++++++++++++++++++
4 files changed, 123 insertions(+)
diff --git a/configure.ac b/configure.ac
index aab3526..533bd34 100644
--- a/configure.ac
+++ b/configure.ac
@@ -215,6 +215,7 @@ loader_check_gif() {
fi
}
+EC_LOADER_CHECK(AVIF, auto, libavif)
EC_LOADER_CHECK(GIF, auto, , loader_check_gif)
EC_LOADER_CHECK(HEIF, auto, libheif)
EC_LOADER_CHECK(JPEG, auto, libjpeg)
@@ -313,6 +314,7 @@ echo "Configuration Options Summary:"
echo
echo "Image loaders:"
echo " Regular image loaders"
+echo " AVIF....................: $avif_ok"
echo " GIF.....................: $gif_ok"
echo " HEIF....................: $heif_ok"
echo " JPEG....................: $jpeg_ok"
diff --git a/src/lib/loaders.c b/src/lib/loaders.c
index 9a3559d..0086b4f 100644
--- a/src/lib/loaders.c
+++ b/src/lib/loaders.c
@@ -25,6 +25,9 @@ typedef struct {
static const char *const ext_ani[] = { "ani", NULL };
static const char *const ext_argb[] = { "argb", NULL };
+#ifdef BUILD_AVIF_LOADER
+static const char *const ext_avif[] = { "avif", "avifs", NULL };
+#endif
static const char *const ext_bmp[] = { "bmp", NULL };
static const char *const ext_ff[] = { "ff", NULL };
#ifdef BUILD_GIF_LOADER
@@ -92,6 +95,9 @@ static const char *const ext_id3[] = { "mp3", NULL };
static const KnownLoader loaders_known[] = {
{ "ani", ext_ani },
{ "argb", ext_argb },
+#ifdef BUILD_AVIF_LOADER
+ { "avif", ext_avif },
+#endif
{ "bmp", ext_bmp },
{ "ff", ext_ff },
#ifdef BUILD_GIF_LOADER
diff --git a/src/modules/loaders/Makefile.am b/src/modules/loaders/Makefile.am
index d5752ce..f186904 100644
--- a/src/modules/loaders/Makefile.am
+++ b/src/modules/loaders/Makefile.am
@@ -17,6 +17,9 @@ tga.la \
xbm.la \
xpm.la
+if BUILD_AVIF_LOADER
+pkg_LTLIBRARIES += avif.la
+endif
if BUILD_GIF_LOADER
pkg_LTLIBRARIES += gif.la
endif
@@ -81,6 +84,12 @@ argb_la_LDFLAGS = -module -avoid-version
argb_la_LIBADD = $(top_builddir)/src/lib/libImlib2.la
argb_la_LIBTOOLFLAGS = --tag=disable-static
+avif_la_SOURCES = loader_avif.c
+avif_la_CPPFLAGS = $(AM_CPPFLAGS) $(AVIF_CFLAGS)
+avif_la_LDFLAGS = -module -avoid-version
+avif_la_LIBADD = $(AVIF_LIBS) $(top_builddir)/src/lib/libImlib2.la
+avif_la_LIBTOOLFLAGS = --tag=disable-static
+
bmp_la_SOURCES = loader_bmp.c
bmp_la_LDFLAGS = -module -avoid-version
bmp_la_LIBADD = $(top_builddir)/src/lib/libImlib2.la
diff --git a/src/modules/loaders/loader_avif.c b/src/modules/loaders/loader_avif.c
new file mode 100644
index 0000000..dcf3360
--- /dev/null
+++ b/src/modules/loaders/loader_avif.c
@@ -0,0 +1,106 @@
+#include "config.h"
+#include "Imlib2_Loader.h"
+
+#include <avif/avif.h>
+
+#define DBG_PFX "LDR-avif"
+#define MAX_THREADS 4
+
+static const char *const _formats[] = { "avif", "avifs" };
+
+static int
+_load(ImlibImage *im, int load_data)
+{
+ avifDecoder *dec;
+ avifRGBImage rgb;
+ avifImageTiming timing;
+ int rc;
+ int frame, fcount;
+ ImlibImageFrame *pf;
+
+ dec = avifDecoderCreate();
+ if (!dec)
+ return LOAD_OOM;
+ dec->maxThreads = MAX_THREADS;
+
+ if (avifDecoderSetIOMemory(dec, im->fi->fdata, im->fi->fsize) != AVIF_RESULT_OK)
+ QUIT_WITH_RC(LOAD_OOM);
+
+ switch (avifDecoderParse(dec))
+ {
+ case AVIF_RESULT_OK:
+ break;
+ case AVIF_RESULT_OUT_OF_MEMORY:
+ QUIT_WITH_RC(LOAD_OOM);
+ break;
+ default:
+ QUIT_WITH_RC(LOAD_FAIL);
+ break;
+ }
+
+ pf = NULL;
+ frame = im->frame;
+ if (frame > 0)
+ {
+ fcount = dec->imageCount;
+ if (frame > 1 && frame > fcount)
+ QUIT_WITH_RC(LOAD_BADFRAME);
+
+ pf = __imlib_GetFrame(im);
+ if (!pf)
+ QUIT_WITH_RC(LOAD_OOM);
+ pf->frame_count = fcount;
+ pf->loop_count = 0; /* loop forever */
+ if (pf->frame_count > 1)
+ pf->frame_flags |= FF_IMAGE_ANIMATED;
+ pf->canvas_w = dec->image->width;
+ pf->canvas_h = dec->image->height;
+
+ if (avifDecoderNthImageTiming(dec, frame - 1, &timing) != AVIF_RESULT_OK)
+ QUIT_WITH_RC(LOAD_BADIMAGE);
+ pf->frame_delay = (int)(timing.duration * 1000);
+ }
+ else
+ {
+ frame = 1;
+ }
+
+ if (!load_data)
+ QUIT_WITH_RC(LOAD_SUCCESS);
+
+ if (avifDecoderNthImage(dec, frame - 1) != AVIF_RESULT_OK)
+ QUIT_WITH_RC(LOAD_BADIMAGE);
+
+ im->w = dec->image->width;
+ im->h = dec->image->height;
+ im->has_alpha = dec->alphaPresent;
+ if (!IMAGE_DIMENSIONS_OK(im->w, im->h))
+ QUIT_WITH_RC(LOAD_BADIMAGE);
+
+ if (!__imlib_AllocateData(im))
+ QUIT_WITH_RC(LOAD_OOM);
+
+ avifRGBImageSetDefaults(&rgb, dec->image);
+ rgb.depth = 8;
+ rgb.pixels = (uint8_t *)im->data;
+ rgb.rowBytes = im->w * 4;
+ rgb.maxThreads = MAX_THREADS;
+#ifdef WORDS_BIGENDIAN /* NOTE(NRK): untested on big endian */
+ rgb.format = AVIF_RGB_FORMAT_ARGB;
+#else
+ rgb.format = AVIF_RGB_FORMAT_BGRA;
+#endif
+ /* NOTE(NRK): shouldn't fail, i think. check anyways. */
+ if (avifImageYUVToRGB(dec->image, &rgb) != AVIF_RESULT_OK)
+ QUIT_WITH_RC(LOAD_BADIMAGE);
+
+ if (im->lc)
+ __imlib_LoadProgressRows(im, 0, im->h);
+ rc = LOAD_SUCCESS;
+
+quit:
+ avifDecoderDestroy(dec);
+ return rc;
+}
+
+IMLIB_LOADER(_formats, _load, NULL);
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