mirror of
https://github.com/RGBCube/serenity
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44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
/*
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* Copyright (c) 2021, Pierre Hoffmeister
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* Copyright (c) 2021, 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 <AK/Optional.h>
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#include <AK/Vector.h>
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#include <LibGfx/Forward.h>
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#include <LibGfx/ImageFormats/PNGShared.h>
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namespace Gfx {
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class PNGChunk;
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// This is not a nested struct to work around https://llvm.org/PR36684
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struct PNGWriterOptions {
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// Data for the iCCP chunk.
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// FIXME: Allow writing cICP, sRGB, or gAMA instead too.
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Optional<ReadonlyBytes> icc_data;
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};
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class PNGWriter {
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public:
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using Options = PNGWriterOptions;
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static ErrorOr<ByteBuffer> encode(Gfx::Bitmap const&, Options options = Options {});
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private:
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PNGWriter() = default;
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Vector<u8> m_data;
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ErrorOr<void> add_chunk(PNGChunk&);
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ErrorOr<void> add_png_header();
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ErrorOr<void> add_IHDR_chunk(u32 width, u32 height, u8 bit_depth, PNG::ColorType color_type, u8 compression_method, u8 filter_method, u8 interlace_method);
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ErrorOr<void> add_iCCP_chunk(ReadonlyBytes icc_data);
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ErrorOr<void> add_IDAT_chunk(Gfx::Bitmap const&);
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ErrorOr<void> add_IEND_chunk();
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};
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}
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