mirror of
https://github.com/RGBCube/serenity
synced 2025-05-15 14:54:57 +00:00
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.
38 lines
996 B
C++
38 lines
996 B
C++
/*
|
|
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <LibGfx/Bitmap.h>
|
|
#include <LibGfx/ImageDecoder.h>
|
|
|
|
namespace Gfx {
|
|
|
|
RefPtr<Gfx::Bitmap> load_png(String const& path);
|
|
RefPtr<Gfx::Bitmap> load_png_from_memory(const u8*, size_t);
|
|
|
|
struct PNGLoadingContext;
|
|
|
|
class PNGImageDecoderPlugin final : public ImageDecoderPlugin {
|
|
public:
|
|
virtual ~PNGImageDecoderPlugin() override;
|
|
PNGImageDecoderPlugin(const u8*, size_t);
|
|
|
|
virtual IntSize size() override;
|
|
virtual RefPtr<Gfx::Bitmap> bitmap() override;
|
|
virtual void set_volatile() override;
|
|
[[nodiscard]] virtual bool set_nonvolatile(bool& was_purged) override;
|
|
virtual bool sniff() override;
|
|
virtual bool is_animated() override;
|
|
virtual size_t loop_count() override;
|
|
virtual size_t frame_count() override;
|
|
virtual ImageFrameDescriptor frame(size_t i) override;
|
|
|
|
private:
|
|
OwnPtr<PNGLoadingContext> m_context;
|
|
};
|
|
|
|
}
|