diff options
| -rw-r--r-- | image/decoders/nsGIFDecoder2.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/image/decoders/nsGIFDecoder2.cpp b/image/decoders/nsGIFDecoder2.cpp index efa145144..6f2be1fa1 100644 --- a/image/decoders/nsGIFDecoder2.cpp +++ b/image/decoders/nsGIFDecoder2.cpp @@ -212,10 +212,16 @@ nsGIFDecoder2::BeginImageFrame(const IntRect& aFrameRect, } else { // This is an animation frame (and not the first). To minimize the memory // usage of animations, the image data is stored in paletted form. + // + // We should never use paletted surfaces with a draw target directly, so + // the only practical difference between B8G8R8A8 and B8G8R8X8 is the + // cleared pixel value if we get truncated. We want 0 in that case to + // ensure it is an acceptable value for the color map as was the case + // historically. MOZ_ASSERT(Size() == OutputSize()); pipe = SurfacePipeFactory::CreatePalettedSurfacePipe(this, Size(), aFrameRect, - format, + SurfaceFormat::B8G8R8A8, aDepth, Some(animParams), pipeFlags); } |