ladybird/Userland/Libraries/LibGfx/CMYKBitmap.h
2024-01-26 07:36:53 +01:00

77 lines
1.6 KiB
C++

/*
* Copyright (c) 2024, Nico Weber <thakis@chromium.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/ByteBuffer.h>
#include <AK/NonnullRefPtr.h>
#include <AK/RefCounted.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Size.h>
namespace Gfx {
struct CMYK {
u8 c;
u8 m;
u8 y;
u8 k;
int operator<=>(CMYK const&) const = default;
};
class CMYKBitmap : public RefCounted<CMYKBitmap> {
public:
static ErrorOr<NonnullRefPtr<CMYKBitmap>> create_with_size(IntSize const& size);
IntSize const& size() const { return m_size; }
[[nodiscard]] CMYK* scanline(int y);
[[nodiscard]] CMYK const* scanline(int y) const;
[[nodiscard]] CMYK* begin();
[[nodiscard]] CMYK* end();
[[nodiscard]] size_t data_size() const { return m_data.size(); }
ErrorOr<RefPtr<Bitmap>> to_low_quality_rgb() const;
private:
CMYKBitmap(IntSize const& size, ByteBuffer data)
: m_size(size)
, m_data(move(data))
{
}
IntSize m_size;
ByteBuffer m_data;
mutable RefPtr<Bitmap> m_rgb_bitmap;
};
inline CMYK* CMYKBitmap::scanline(int y)
{
VERIFY(y >= 0 && y < m_size.height());
return reinterpret_cast<CMYK*>(m_data.data() + y * m_size.width() * sizeof(CMYK));
}
inline CMYK const* CMYKBitmap::scanline(int y) const
{
VERIFY(y >= 0 && y < m_size.height());
return reinterpret_cast<CMYK const*>(m_data.data() + y * m_size.width() * sizeof(CMYK));
}
inline CMYK* CMYKBitmap::begin()
{
return reinterpret_cast<CMYK*>(m_data.data());
}
inline CMYK* CMYKBitmap::end()
{
return reinterpret_cast<CMYK*>(m_data.data() + data_size());
}
}