714cf827db
Moving 2D canvas rasterization into the Compositor process needs a wire format for canvas mutations that does not depend on LibWeb state. Add CanvasCommandList as an apply-once log of drawing operations whose operands are Gfx value types and whose IPC encoders can be shared by WebContent and the compositor side.
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/*
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* Copyright (c) 2026, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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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/Assertions.h>
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#include <AK/Atomic.h>
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#include <AK/NonnullRefPtr.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/ColorSpace.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/Rect.h>
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#include <LibIPC/Forward.h>
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namespace Gfx {
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class DecodedImageFrame final {
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public:
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DecodedImageFrame(NonnullRefPtr<Bitmap const> bitmap, ColorSpace color_space = {})
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: m_id(next_id())
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, m_bitmap(move(bitmap))
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, m_color_space(move(color_space))
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{
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}
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DecodedImageFrame(Bitmap const& bitmap, ColorSpace color_space = {})
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: DecodedImageFrame(NonnullRefPtr<Bitmap const> { bitmap }, move(color_space))
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{
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}
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DecodedImageFrame(Bitmap const& bitmap, AlphaType alpha_type, ColorSpace color_space = {})
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: DecodedImageFrame(bitmap_with_alpha_type(bitmap, alpha_type), move(color_space))
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{
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}
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Bitmap const& bitmap() const { return *m_bitmap; }
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NonnullRefPtr<Bitmap const> bitmap_ref() const { return m_bitmap; }
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ColorSpace const& color_space() const { return m_color_space; }
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u64 id() const { return m_id; }
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int width() const { return m_bitmap->width(); }
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int height() const { return m_bitmap->height(); }
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IntRect rect() const { return m_bitmap->rect(); }
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IntSize size() const { return m_bitmap->size(); }
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private:
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static NonnullRefPtr<Bitmap const> bitmap_with_alpha_type(Bitmap const& bitmap, AlphaType alpha_type)
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{
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if (bitmap.alpha_type() == alpha_type)
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return NonnullRefPtr<Bitmap const> { bitmap };
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auto new_bitmap = MUST(bitmap.clone());
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new_bitmap->set_alpha_type_destructive(alpha_type);
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return new_bitmap;
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}
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static u64 next_id()
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{
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static Atomic<u64> s_next_id { 1 };
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return s_next_id.fetch_add(1, AK::MemoryOrder::memory_order_relaxed);
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}
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u64 m_id { 0 };
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NonnullRefPtr<Bitmap const> m_bitmap;
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ColorSpace m_color_space;
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};
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}
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namespace IPC {
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template<>
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ErrorOr<void> encode(Encoder&, Gfx::DecodedImageFrame const&);
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template<>
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ErrorOr<Gfx::DecodedImageFrame> decode(Decoder&);
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}
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