chromium/ui/base/wayland/color_manager_util.h

// Copyright 2022 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_BASE_WAYLAND_COLOR_MANAGER_UTIL_H_
#define UI_BASE_WAYLAND_COLOR_MANAGER_UTIL_H_

#include <chrome-color-management-server-protocol.h>

#include "base/containers/fixed_flat_map.h"
#include "skia/ext/skcolorspace_trfn.h"
#include "ui/gfx/color_space.h"
#include "ui/gfx/display_color_spaces.h"

namespace ui::wayland {

// A 2.4 gamma for the BT2087 transfer function.
static constexpr skcms_TransferFunction gamma24 = …;
constexpr uint32_t kDefaultSinceVersion = …;

// These structs are used for holding ColorSpace enums, and the version of the
// color management protocol their support was introduced.
struct TransferFnVersion { … };

struct TransferVersion { … };

struct PrimaryVersion { … };

struct MatrixVersion { … };

struct RangeVersion { … };

// A map from the zcr_color_manager_v1 chromaticity_names enum values
// representing well-known chromaticities, to their equivalent PrimaryIDs.
// See components/exo/wayland/protocol/chrome-color-management.xml
constexpr auto kChromaticityMap = …;

// A map from the zcr_color_manager_v1 eotf_names enum values
// representing well-known EOTFs, to their equivalent TransferIDs.
// See components/exo/wayland/protocol/chrome-color-management.xml
constexpr auto kEotfMap = …;

// A map from the SDR zcr_color_manager_v1 eotf_names enum values
// representing well-known EOTFs, to their equivalent transfer functions.
// See components/exo/wayland/protocol/chrome-color-management.xml
constexpr auto kTransferMap = …;

// A map from the HDR zcr_color_manager_v1 eotf_names enum values
// representing well-known EOTFs, to their equivalent transfer functions.
// See components/exo/wayland/protocol/chrome-color-management.xml
constexpr auto kHDRTransferMap = …;

// A map from zcr_color_manager_v1 matrix_names enum values to
// gfx::ColorSpace::MatrixIDs.
constexpr auto kMatrixMap = …;

// A map from zcr_color_manager_v1 range_names enum values to
// gfx::ColorSpace::RangeIDs.
constexpr auto kRangeMap = …;

zcr_color_manager_v1_chromaticity_names ToColorManagerChromaticity(
    gfx::ColorSpace::PrimaryID primaryID,
    uint32_t version);

zcr_color_manager_v1_matrix_names ToColorManagerMatrix(
    gfx::ColorSpace::MatrixID matrixID,
    uint32_t version);

zcr_color_manager_v1_range_names ToColorManagerRange(
    gfx::ColorSpace::RangeID rangeID,
    uint32_t version);

zcr_color_manager_v1_eotf_names ToColorManagerEOTF(
    gfx::ColorSpace::TransferID transferID,
    uint32_t version);

zcr_color_manager_v1_eotf_names ToColorManagerEOTF(gfx::ColorSpace color_space,
                                                   uint32_t version);

}  // namespace ui::wayland

#endif  // UI_BASE_WAYLAND_COLOR_MANAGER_UTIL_H_