mirror of
https://github.com/LadybirdBrowser/ladybird
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3cfe1f7542
Using the Rust yuv crate, eagerly convert from YUV to RGBA on the CPU when a GPU context is unavailable. Time spent converting an 8-bit YUV frame with this crate is better than libyuv on ARM by about 20%, and on x86 with AVX2, it achieves similar numbers to libyuv.
60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
/*
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* Copyright (c) 2026, Gregory Bertilson <gregory@ladybird.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Error.h>
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#include <AK/FixedArray.h>
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#include <AK/NonnullOwnPtr.h>
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#include <AK/NonnullRefPtr.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/Size.h>
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#include <LibMedia/Color/CodingIndependentCodePoints.h>
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#include <LibMedia/Subsampling.h>
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class SkYUVAPixmaps;
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namespace Gfx {
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namespace Details {
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struct YUVDataImpl;
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}
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// Holds planar YUV data with metadata needed for GPU conversion.
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// Uses FixedArray for deterministic buffer sizing.
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// Not ref-counted - owned directly by ImmutableBitmap via NonnullOwnPtr.
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class YUVData final {
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public:
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static ErrorOr<NonnullOwnPtr<YUVData>> create(IntSize size, u8 bit_depth, Media::Subsampling, Media::CodingIndependentCodePoints);
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~YUVData();
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IntSize size() const;
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u8 bit_depth() const;
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Media::Subsampling subsampling() const;
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Media::CodingIndependentCodePoints const& cicp() const;
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// Writable access for decoder to fill buffers after creation
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Bytes y_data();
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Bytes u_data();
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Bytes v_data();
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ErrorOr<NonnullRefPtr<Bitmap>> to_bitmap() const;
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SkYUVAPixmaps make_pixmaps() const;
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void expand_samples_to_full_16_bit_range();
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private:
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explicit YUVData(NonnullOwnPtr<Details::YUVDataImpl>);
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NonnullOwnPtr<Details::YUVDataImpl> m_impl;
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};
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}
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