mirror of
https://github.com/RGBCube/serenity
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6cf8eeb7a4
Nobody made use of the ErrorOr return value and it just added more chance of confusion, since it was not clear if failing to sniff an image should return an error or false. The answer was false, if you returned Error you'd crash the ImageDecoder.
38 lines
1,007 B
C++
38 lines
1,007 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/ImageDecoder.h>
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namespace Gfx {
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struct PNGLoadingContext;
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class PNGImageDecoderPlugin final : public ImageDecoderPlugin {
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public:
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static bool sniff(ReadonlyBytes);
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static ErrorOr<NonnullOwnPtr<ImageDecoderPlugin>> create(ReadonlyBytes);
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virtual ~PNGImageDecoderPlugin() override;
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virtual IntSize size() 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 initialize() 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 ErrorOr<ImageFrameDescriptor> frame(size_t index) override;
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virtual ErrorOr<Optional<ReadonlyBytes>> icc_data() override;
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private:
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PNGImageDecoderPlugin(u8 const*, size_t);
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OwnPtr<PNGLoadingContext> m_context;
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};
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}
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