diff options
Diffstat (limited to 'Userland')
| -rw-r--r-- | Userland/Libraries/LibGfx/ImageFormats/WebPLoader.cpp | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/Userland/Libraries/LibGfx/ImageFormats/WebPLoader.cpp b/Userland/Libraries/LibGfx/ImageFormats/WebPLoader.cpp index 7d7ca4a01d..3deb132890 100644 --- a/Userland/Libraries/LibGfx/ImageFormats/WebPLoader.cpp +++ b/Userland/Libraries/LibGfx/ImageFormats/WebPLoader.cpp @@ -71,6 +71,7 @@ struct VP8LHeader { u16 width; u16 height; bool is_alpha_used; + ReadonlyBytes lossless_data; }; struct VP8XHeader { @@ -344,7 +345,7 @@ static ErrorOr<VP8LHeader> decode_webp_chunk_VP8L_header(Chunk const& vp8l_chunk if (version_number != 0) return Error::from_string_literal("WebPImageDecoderPlugin: VP8L chunk invalid version_number"); - return VP8LHeader { width, height, is_alpha_used }; + return VP8LHeader { width, height, is_alpha_used, vp8l_chunk.data.slice(5) }; } namespace { @@ -1228,7 +1229,7 @@ ErrorOr<NonnullRefPtr<Bitmap>> ColorIndexingTransform::transform(NonnullRefPtr<B // https://developers.google.com/speed/webp/docs/riff_container#simple_file_format_lossless // https://developers.google.com/speed/webp/docs/webp_lossless_bitstream_specification#7_overall_structure_of_the_format -static ErrorOr<NonnullRefPtr<Bitmap>> decode_webp_chunk_VP8L_contents(VP8LHeader const& vp8l_header, ReadonlyBytes lossless_data); +static ErrorOr<NonnullRefPtr<Bitmap>> decode_webp_chunk_VP8L_contents(VP8LHeader const& vp8l_header); static ErrorOr<NonnullRefPtr<Bitmap>> decode_webp_chunk_VP8L(WebPLoadingContext& context, Chunk const& vp8l_chunk) { @@ -1236,14 +1237,13 @@ static ErrorOr<NonnullRefPtr<Bitmap>> decode_webp_chunk_VP8L(WebPLoadingContext& VERIFY(vp8l_chunk.type == FourCC("VP8L")); auto vp8l_header = TRY(decode_webp_chunk_VP8L_header(vp8l_chunk)); - ReadonlyBytes lossless_data = vp8l_chunk.data.slice(5); - return decode_webp_chunk_VP8L_contents(vp8l_header, lossless_data); + return decode_webp_chunk_VP8L_contents(vp8l_header); } // Decodes the lossless webp bitstream following the 5-byte header information. -static ErrorOr<NonnullRefPtr<Bitmap>> decode_webp_chunk_VP8L_contents(VP8LHeader const& vp8l_header, ReadonlyBytes lossless_data) +static ErrorOr<NonnullRefPtr<Bitmap>> decode_webp_chunk_VP8L_contents(VP8LHeader const& vp8l_header) { - FixedMemoryStream memory_stream { lossless_data }; + FixedMemoryStream memory_stream { vp8l_header.lossless_data }; LittleEndianInputBitStream bit_stream { MaybeOwned<Stream>(memory_stream) }; // image-stream = optional-transform spatially-coded-image @@ -1346,8 +1346,8 @@ static ErrorOr<void> decode_webp_chunk_ALPH(WebPLoadingContext& context, Chunk c // of implicit dimension width x height. That is, this image-stream does NOT contain any headers describing the image dimension. // Once the image-stream is decoded into ARGB color values, following the process described in the lossless format specification, // the transparency information must be extracted from the green channel of the ARGB quadruplet." - VP8LHeader vp8l_header = { static_cast<u16>(bitmap.width()), static_cast<u16>(bitmap.height()), /*is_alpha_used=*/false }; - auto lossless_bitmap = TRY(decode_webp_chunk_VP8L_contents(vp8l_header, alpha_data)); + VP8LHeader vp8l_header { static_cast<u16>(bitmap.width()), static_cast<u16>(bitmap.height()), /*is_alpha_used=*/false, alpha_data }; + auto lossless_bitmap = TRY(decode_webp_chunk_VP8L_contents(vp8l_header)); if (pixel_count != static_cast<size_t>(lossless_bitmap->width() * lossless_bitmap->height())) return context.error("WebPImageDecoderPlugin: decompressed ALPH dimensions don't match VP8 dimensions"); |