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51 lines
1 KiB
C++
51 lines
1 KiB
C++
/*
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* Copyright (c) 2020, Ben Jilks <benjyjilks@gmail.com>
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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/ByteBuffer.h>
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namespace Gfx {
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class Bitmap;
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// This is not a nested struct to work around https://llvm.org/PR36684
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struct BMPWriterOptions {
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enum class DibHeader : u32 {
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Info = 40,
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V3 = 56,
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V4 = 108,
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V5 = 124,
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};
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DibHeader dib_header = DibHeader::V5;
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Optional<ReadonlyBytes> icc_data;
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};
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class BMPWriter {
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public:
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using Options = BMPWriterOptions;
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static ErrorOr<ByteBuffer> encode(Bitmap const&, Options options = Options {});
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private:
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BMPWriter() = default;
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ErrorOr<ByteBuffer> dump(Bitmap const&, Options options);
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enum class Compression : u32 {
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BI_RGB = 0,
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BI_BITFIELDS = 3,
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};
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static ByteBuffer compress_pixel_data(ByteBuffer, Compression);
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Compression m_compression { Compression::BI_BITFIELDS };
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int m_bytes_per_pixel { 4 };
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bool m_include_alpha_channel { true };
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};
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}
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