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fix(gif): fix rare issue when drawing the gif's background

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Gabor Kiss-Vamosi
2022-02-17 18:16:39 +01:00
parent ab727d3181
commit b1e2c06658
1 changed files with 15 additions and 15 deletions
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30
src/extra/libs/gif/gifdec.c
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@@ -133,28 +133,28 @@ static gd_GIF * gif_open(gd_GIF * gif_base)
#elif LV_COLOR_DEPTH == 8 || LV_COLOR_DEPTH == 1 #elif LV_COLOR_DEPTH == 8 || LV_COLOR_DEPTH == 1
gif->frame = &gif->canvas[2 * width * height]; gif->frame = &gif->canvas[2 * width * height];
#endif #endif
if (gif->bgindex) if (gif->bgindex) {
memset(gif->frame, gif->bgindex, gif->width * gif->height); memset(gif->frame, gif->bgindex, gif->width * gif->height);
}
bgcolor = &gif->palette->colors[gif->bgindex*3]; bgcolor = &gif->palette->colors[gif->bgindex*3];
if (bgcolor[0] || bgcolor[1] || bgcolor [2]) for (i = 0; i < gif->width * gif->height; i++) {
for (i = 0; i < gif->width * gif->height; i++) {
#if LV_COLOR_DEPTH == 32 #if LV_COLOR_DEPTH == 32
gif->canvas[i*4 + 0] = *(bgcolor + 2); gif->canvas[i*4 + 0] = *(bgcolor + 2);
gif->canvas[i*4 + 1] = *(bgcolor + 1); gif->canvas[i*4 + 1] = *(bgcolor + 1);
gif->canvas[i*4 + 2] = *(bgcolor + 0); gif->canvas[i*4 + 2] = *(bgcolor + 0);
gif->canvas[i*4 + 3] = 0xff; gif->canvas[i*4 + 3] = 0xff;
#elif LV_COLOR_DEPTH == 16 #elif LV_COLOR_DEPTH == 16
lv_color_t c = lv_color_make(*(bgcolor + 0), *(bgcolor + 1), *(bgcolor + 2)); lv_color_t c = lv_color_make(*(bgcolor + 0), *(bgcolor + 1), *(bgcolor + 2));
gif->canvas[i*3 + 0] = c.full & 0xff; gif->canvas[i*3 + 0] = c.full & 0xff;
gif->canvas[i*3 + 1] = (c.full >> 8) & 0xff; gif->canvas[i*3 + 1] = (c.full >> 8) & 0xff;
gif->canvas[i*3 + 2] = 0xff; gif->canvas[i*3 + 2] = 0xff;
#elif LV_COLOR_DEPTH == 8 #elif LV_COLOR_DEPTH == 8
lv_color_t c = lv_color_make(*(bgcolor + 0), *(bgcolor + 1), *(bgcolor + 2)); lv_color_t c = lv_color_make(*(bgcolor + 0), *(bgcolor + 1), *(bgcolor + 2));
gif->canvas[i*2 + 0] = c.full; gif->canvas[i*2 + 0] = c.full;
gif->canvas[i*2 + 1] = 0xff; gif->canvas[i*2 + 1] = 0xff;
#endif #endif
} }
gif->anim_start = f_gif_seek(gif, 0, LV_FS_SEEK_CUR); gif->anim_start = f_gif_seek(gif, 0, LV_FS_SEEK_CUR);
goto ok; goto ok;
fail: fail: