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LibGfx: Respect unpremultiplied alpha for JPEG XL

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This commit is contained in:
Pavel Shliak 2024-11-02 20:07:13 +04:00 committed by Jelle Raaijmakers
parent 13b7355ec1
commit dcf8f2a31d
Notes: github-actions[bot] 2024-11-02 17:49:32 +00:00 
Author: https://github.com/shlyakpavel
Commit: https://github.com/LadybirdBrowser/ladybird/commit/dcf8f2a31dd
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2126
Reviewed-by: https://github.com/gmta ✅
1 changed files with 3 additions and 1 deletions
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4
Userland/Libraries/LibGfx/ImageFormats/JPEGXLLoader.cpp
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@ -135,6 +135,7 @@ private:
m_size = { info.xsize, info.ysize };
m_animated = static_cast<bool>(info.have_animation);
m_alpha_premultiplied = info.alpha_premultiplied ? Gfx::AlphaType::Premultiplied : Gfx::AlphaType::Unpremultiplied;
if (m_animated)
m_loop_count = info.animation.num_loops;
@ -149,7 +150,7 @@ private:
if (JxlDecoderProcessInput(m_decoder) != JXL_DEC_NEED_IMAGE_OUT_BUFFER)
return Error::from_string_literal("JPEGXLImageDecoderPlugin: Decoder is in an unexpected state.");
auto bitmap = TRY(Bitmap::create(Gfx::BitmapFormat::RGBA8888, m_size));
auto bitmap = TRY(Bitmap::create(Gfx::BitmapFormat::RGBA8888, m_alpha_premultiplied, m_size));
TRY(m_frame_descriptors.try_empend(bitmap, static_cast<int>(duration)));
JxlPixelFormat format = { 4, JXL_TYPE_UINT8, JXL_NATIVE_ENDIAN, 0 };
@ -183,6 +184,7 @@ private:
Vector<ImageFrameDescriptor> m_frame_descriptors;
bool m_animated { false };
Gfx::AlphaType m_alpha_premultiplied { Gfx::AlphaType::Premultiplied };
u32 m_loop_count { 0 };
u32 m_frame_count { 0 };
};