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LibGfx+LibWeb: Add ImmutableBitmap for images bitmap caching in painter
Before this change, we used Gfx::Bitmap to represent both decoded images that are not going to be mutated and bitmaps corresponding to canvases that could be mutated. This change introduces a wrapper for bitmaps that are not going to be mutated, so the painter could do caching: texture caching in the case of GPU painter and potentially scaled bitmap caching in the case of CPU painter.
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24 changed files with 146 additions and 35 deletions
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Userland/Libraries/LibGfx/ImmutableBitmap.h
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Userland/Libraries/LibGfx/ImmutableBitmap.h
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/*
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* Copyright (c) 2023, 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/Forward.h>
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#include <AK/RefCounted.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/Rect.h>
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namespace Gfx {
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class ImmutableBitmap final : public RefCounted<ImmutableBitmap> {
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public:
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static NonnullRefPtr<ImmutableBitmap> create(NonnullRefPtr<Bitmap> bitmap);
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~ImmutableBitmap() = default;
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Bitmap const& bitmap() const { return *m_bitmap; }
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size_t width() const { return m_bitmap->width(); }
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size_t 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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size_t id() const { return m_id; }
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private:
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NonnullRefPtr<Bitmap> m_bitmap;
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size_t m_id;
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explicit ImmutableBitmap(NonnullRefPtr<Bitmap> bitmap);
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};
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}
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