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LibGfx/WebPWriter: Write correct alpha use hint in animation VP8L header

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Since we now compute this for free, might as well fill it in.

As far as I can tell, no observable behavior difference anywhere.
This commit is contained in:
Nico Weber 2024-05-27 20:36:50 -04:00 committed by Sam Atkins
parent 2d80a5c6ca
commit 0ae36b9524
1 changed files with 2 additions and 1 deletions
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3
Userland/Libraries/LibGfx/ImageFormats/WebPWriter.cpp
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@ -319,7 +319,8 @@ ErrorOr<void> WebPAnimationWriter::add_frame(Bitmap& bitmap, int duration_ms, In
chunk.disposal_method = ANMFChunkHeader::DisposalMethod::DoNotDispose;
TRY(write_ANMF_chunk_header(m_stream, chunk, compute_VP8L_chunk_size(vp8l_data_bytes)));
TRY(write_VP8L_chunk(m_stream, bitmap.width(), bitmap.height(), true, vp8l_data_bytes));
bool alpha_is_used_hint = !is_fully_opaque;
TRY(write_VP8L_chunk(m_stream, bitmap.width(), bitmap.height(), alpha_is_used_hint, vp8l_data_bytes));
TRY(update_size_in_header());