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serenity/Userland/Libraries/LibGfx/ImageFormats/GIFLoader.h
Ben Wiederhake da394abe04 LibGfx+Fuzz: Convert ImageDecoder::initialize to ErrorOr
This prevents callers from accidentally discarding the result of
initialize(), which was the root cause of this OSS Fuzz bug:

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=55896&q=label%3AProj-serenity&sort=summary
2023-05-12 09:40:24 +01:00

40 lines
1.1 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGfx/Bitmap.h>
#include <LibGfx/ImageFormats/ImageDecoder.h>
namespace Gfx {
struct GIFLoadingContext;
class GIFImageDecoderPlugin final : public ImageDecoderPlugin {
public:
static bool sniff(ReadonlyBytes);
static ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> create(ReadonlyBytes);
virtual ~GIFImageDecoderPlugin() override;
virtual IntSize size() override;
virtual void set_volatile() override;
[[nodiscard]] virtual bool set_nonvolatile(bool& was_purged) override;
virtual ErrorOr<void> initialize() override;
virtual bool is_animated() override;
virtual size_t loop_count() override;
virtual size_t frame_count() override;
virtual size_t first_animated_frame_index() override;
virtual ErrorOr<ImageFrameDescriptor> frame(size_t index) override;
virtual ErrorOr<Optional<ReadonlyBytes>> icc_data() override;
private:
GIFImageDecoderPlugin(u8 const*, size_t);
OwnPtr<GIFLoadingContext> m_context;
};
}