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LibGfx/WebPWriter: Rename alpha_hint to alpha_is_used_hint

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No behavior change.
This commit is contained in:
Nico Weber 2024-05-04 20:15:05 -04:00 committed by Tim Flynn
parent 5b335d51e1
commit 0e2e7cd1be
Notes: sideshowbarker 2024-07-17 01:46:43 +09:00 
Author: https://github.com/nico
Commit: https://github.com/SerenityOS/serenity/commit/0e2e7cd1be
Pull-request: https://github.com/SerenityOS/serenity/pull/24246
Reviewed-by: https://github.com/LucasChollet
1 changed files with 2 additions and 2 deletions
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Userland/Libraries/LibGfx/ImageFormats/WebPWriter.cpp
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@ -33,7 +33,7 @@ static ErrorOr<void> write_chunk_header(Stream& stream, StringView chunk_fourcc,
// 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<void> write_VP8L_header(Stream& stream, unsigned width, unsigned height, bool alpha_hint)
static ErrorOr<void> write_VP8L_header(Stream& stream, unsigned width, unsigned height, bool alpha_is_used_hint)
{
// "The 14-bit precision for image width and height limits the maximum size of a WebP lossless image to 16384✕16384 pixels."
if (width > 16384 || height > 16384)
@ -53,7 +53,7 @@ static ErrorOr<void> write_VP8L_header(Stream& stream, unsigned width, unsigned
// "The alpha_is_used bit is a hint only, and should not impact decoding.
// It should be set to 0 when all alpha values are 255 in the picture, and 1 otherwise."
TRY(bit_stream.write_bits(alpha_hint, 1u));
TRY(bit_stream.write_bits(alpha_is_used_hint, 1u));
// "The version_number is a 3 bit code that must be set to 0."
TRY(bit_stream.write_bits(0u, 3u));