[EGIT] [legacy-imlib2] 03/03: multiframe support

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git pushed a commit to branch libavif-loader
in repository legacy-imlib2.

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commit 826ba826b0c75b87f232ca2366197b6198b95f6f
Author: NRK <n...@disroot.org>
AuthorDate: Wed Feb 26 04:23:06 2025 +0000

    multiframe support
---
 src/modules/loaders/loader_avif.c | 44 ++++++++++++++++++++++++++++++++++-----
 1 file changed, 39 insertions(+), 5 deletions(-)

diff --git a/src/modules/loaders/loader_avif.c b/src/modules/loaders/loader_avif.c
index 9473331..7ebb03a 100644
--- a/src/modules/loaders/loader_avif.c
+++ b/src/modules/loaders/loader_avif.c
@@ -10,10 +10,12 @@ static const char *const _formats[] = { "avif" };
 static int
 _load(ImlibImage *im, int load_data)
 {
-    avifDecoder *dec;
-    /* avifResult   res; */
-    avifRGBImage rgb;
-    int          rc;
+    avifDecoder      *dec;
+    /* avifResult        res; */
+    avifRGBImage      rgb;
+    int               rc;
+    int               frame, fcount;
+    ImlibImageFrame  *pf;
 
     dec = avifDecoderCreate();
     if (!dec)
@@ -27,7 +29,31 @@ _load(ImlibImage *im, int load_data)
     default: QUIT_WITH_RC(LOAD_FAIL);
     }
 
-    if (avifDecoderNextImage(dec) != AVIF_RESULT_OK)
+    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; // TODO?
+        if (pf->frame_count > 1)
+            pf->frame_flags |= FF_IMAGE_ANIMATED;
+        // TODO?
+        pf->canvas_w = dec->image->width;
+        pf->canvas_h = dec->image->height;
+    }
+    else
+    {
+        frame = 1;
+    }
+
+    if (avifDecoderNthImage(dec, frame - 1) != AVIF_RESULT_OK)
         QUIT_WITH_RC(LOAD_BADIMAGE);
 
     im->w = dec->image->width;
@@ -35,6 +61,14 @@ _load(ImlibImage *im, int load_data)
     im->has_alpha = dec->alphaPresent;
     if (!IMAGE_DIMENSIONS_OK(im->w, im->h))
         QUIT_WITH_RC(LOAD_BADIMAGE);
+    if (pf)
+    {
+        /* pf->frame_x = 0; */
+        /* pf->frame_y = 0; */
+        pf->frame_delay = (int)(dec->imageTiming.duration * 1000);
+        pf->frame_flags |= FF_FRAME_DISPOSE_CLEAR; // TODO??
+    }
+
     if (!load_data)
         QUIT_WITH_RC(LOAD_SUCCESS);
 


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