1// Copyright (C) 2024 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#ifndef QWAYLANDCOLORMANAGEMENT_H
5#define QWAYLANDCOLORMANAGEMENT_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <QObject>
19#include <QPointF>
20#include <QColorSpace>
21#include <QList>
22
23#include "qwayland-xx-color-management-v4.h"
24
25QT_BEGIN_NAMESPACE
26
27namespace QtWaylandClient {
28
29class ImageDescription;
30
31class ColorManager : public QObject, public QtWayland::xx_color_manager_v4
32{
33 Q_OBJECT
34public:
35 enum class Feature {
36 ICC = 1 << 0,
37 Parametric = 1 << 1,
38 SetPrimaries = 1 << 2,
39 PowerTransferFunction = 1 << 3,
40 SetLuminances = 1 << 4,
41 SetMasteringDisplayPrimaries = 1 << 5,
42 ExtendedTargetVolume = 1 << 6,
43 };
44 Q_ENUM(Feature);
45 Q_DECLARE_FLAGS(Features, Feature);
46
47 explicit ColorManager(struct ::wl_registry *registry, uint32_t id, int version);
48 ~ColorManager() override;
49
50 Features supportedFeatures() const;
51 bool supportsNamedPrimary(QtWayland::xx_color_manager_v4::primaries primaries) const;
52 bool supportsTransferFunction(QtWayland::xx_color_manager_v4::transfer_function transferFunction) const;
53
54 std::unique_ptr<ImageDescription> createImageDescription(const QColorSpace &colorspace);
55
56private:
57 void xx_color_manager_v4_supported_feature(uint32_t feature) override;
58 void xx_color_manager_v4_supported_primaries_named(uint32_t primaries) override;
59 void xx_color_manager_v4_supported_tf_named(uint32_t transferFunction) override;
60
61 Features mFeatures;
62 QList<QtWayland::xx_color_manager_v4::primaries> mPrimaries;
63 QList<QtWayland::xx_color_manager_v4::transfer_function> mTransferFunctions;
64};
65
66class ImageDescriptionInfo : public QObject, public QtWayland::xx_image_description_info_v4
67{
68 Q_OBJECT
69public:
70 explicit ImageDescriptionInfo(ImageDescription *descr);
71 ~ImageDescriptionInfo();
72
73 Q_SIGNAL void done();
74
75 uint32_t mTransferFunction = 0;
76 QPointF mContainerRed;
77 QPointF mContainerGreen;
78 QPointF mContainerBlue;
79 QPointF mContainerWhite;
80 QPointF mTargetRed;
81 QPointF mTargetGreen;
82 QPointF mTargetBlue;
83 QPointF mTargetWhite;
84 double mMinLuminance;
85 double mMaxLuminance;
86 double mReferenceLuminance;
87 double mTargetMinLuminance;
88 double mTargetMaxLuminance;
89
90private:
91 void xx_image_description_info_v4_done() override;
92 void xx_image_description_info_v4_icc_file(int32_t icc, uint32_t icc_size) override;
93 void xx_image_description_info_v4_primaries(int32_t r_x, int32_t r_y, int32_t g_x, int32_t g_y, int32_t b_x, int32_t b_y, int32_t w_x, int32_t w_y) override;
94 void xx_image_description_info_v4_tf_named(uint32_t transferFunction) override;
95 void xx_image_description_info_v4_luminances(uint32_t min_lum, uint32_t max_lum, uint32_t reference_lum) override;
96 void xx_image_description_info_v4_target_primaries(int32_t r_x, int32_t r_y, int32_t g_x, int32_t g_y, int32_t b_x, int32_t b_y, int32_t w_x, int32_t w_y) override;
97 void xx_image_description_info_v4_target_luminance(uint32_t min_lum, uint32_t max_lum) override;
98};
99
100class ImageDescription : public QObject, public QtWayland::xx_image_description_v4
101{
102 Q_OBJECT
103public:
104 explicit ImageDescription(::xx_image_description_v4 *descr);
105 ~ImageDescription();
106
107 Q_SIGNAL void ready();
108
109private:
110 void xx_image_description_v4_failed(uint32_t cause, const QString &msg) override;
111 void xx_image_description_v4_ready(uint32_t identity) override;
112};
113
114class ColorManagementFeedback : public QObject, public QtWayland::xx_color_management_feedback_surface_v4
115{
116 Q_OBJECT
117public:
118 explicit ColorManagementFeedback(::xx_color_management_feedback_surface_v4 *obj);
119 ~ColorManagementFeedback();
120
121 Q_SIGNAL void preferredChanged();
122
123 std::unique_ptr<ImageDescriptionInfo> mPreferredInfo;
124
125private:
126 void xx_color_management_feedback_surface_v4_preferred_changed() override;
127 void handlePreferredDone();
128
129 std::unique_ptr<ImageDescription> mPreferred;
130 std::unique_ptr<ImageDescriptionInfo> mPendingPreferredInfo;
131
132};
133
134class ColorManagementSurface : public QObject, public QtWayland::xx_color_management_surface_v4
135{
136 Q_OBJECT
137public:
138 explicit ColorManagementSurface(::xx_color_management_surface_v4 *obj);
139 ~ColorManagementSurface();
140
141 void setImageDescription(ImageDescription *descr);
142};
143
144}
145
146QT_END_NAMESPACE
147
148#endif
149

source code of qtbase/src/plugins/platforms/wayland/qwaylandcolormanagement_p.h