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143443e0b6
Making a bitmap non-volatile after being volatile may fail to allocate physical pages after the kernel stole the old pages in a purge. This is different from the pages being purged, but reallocated. In that case, they are simply replaced with zero-fill-on-demand pages as if they were freshly allocated.
39 lines
996 B
C++
39 lines
996 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.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 <LibGfx/Bitmap.h>
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#include <LibGfx/ImageDecoder.h>
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namespace Gfx {
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RefPtr<Gfx::Bitmap> load_gif(String const& path);
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RefPtr<Gfx::Bitmap> load_gif_from_memory(const u8*, size_t);
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struct GIFLoadingContext;
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class GIFImageDecoderPlugin final : public ImageDecoderPlugin {
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public:
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virtual ~GIFImageDecoderPlugin() override;
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GIFImageDecoderPlugin(const u8*, size_t);
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virtual IntSize size() override;
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virtual RefPtr<Gfx::Bitmap> bitmap() override;
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virtual void set_volatile() override;
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[[nodiscard]] virtual bool set_nonvolatile(bool& was_purged) override;
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virtual bool sniff() override;
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virtual bool is_animated() override;
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virtual size_t loop_count() override;
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virtual size_t frame_count() override;
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virtual ImageFrameDescriptor frame(size_t i) override;
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private:
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OwnPtr<GIFLoadingContext> m_context;
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};
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}
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