chromium/ui/gfx/color_space.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_COLOR_SPACE_H_
#define UI_GFX_COLOR_SPACE_H_

#include <stdint.h>

#include <iosfwd>
#include <optional>
#include <string>

#include "base/gtest_prod_util.h"
#include "build/build_config.h"
#include "skia/ext/skcolorspace_trfn.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "ui/gfx/color_space_export.h"

struct skcms_Matrix3x3;
struct skcms_TransferFunction;
class SkColorSpace;
class SkM44;
struct SkColorSpacePrimaries;
enum SkYUVColorSpace : int;

// These forward declarations are used to give IPC code friend access to private
// fields of gfx::ColorSpace for the purpose of serialization and
// deserialization.
namespace IPC {
template <class P>
struct ParamTraits;
}  // namespace IPC

namespace mojo {
template <class T, class U>
struct StructTraits;
}  // namespace mojo

// Used to serialize a gfx::ColorSpace through the GPU command buffer.
struct _GLcolorSpace;

namespace media {
namespace stable {
namespace mojom {
class ColorSpaceDataView;
}  // namespace mojom
}  // namespace stable
}  // namespace media

namespace gfx {

enum class ContentColorUsage : uint8_t;

namespace mojom {
class ColorSpaceDataView;
}  // namespace mojom

// Used to represent a color space for the purpose of color conversion.
// This is designed to be safe and compact enough to send over IPC
// between any processes.
class COLOR_SPACE_EXPORT ColorSpace { … };

// Stream operator so ColorSpace can be used in assertion statements.
COLOR_SPACE_EXPORT std::ostream& operator<<(std::ostream& out,
                                            const ColorSpace& color_space);

}  // namespace gfx

#endif  // UI_GFX_COLOR_SPACE_H_