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39
40#ifndef SHAREDTEXTUREPROVIDER_H
41#define SHAREDTEXTUREPROVIDER_H
42
43#include <QOpenGLFunctions>
44#include <QQuickImageProvider>
45#include <QtQuick/QSGTexture>
46#include <QScopedPointer>
47#include <QHash>
48
49#include <QtWaylandClient/private/qwaylandserverbufferintegration_p.h>
50
51QT_BEGIN_NAMESPACE
52
53class TextureSharingExtension;
54
55class SharedTextureRegistry : public QObject
56{
57 Q_OBJECT
58public:
59 SharedTextureRegistry();
60 ~SharedTextureRegistry() override;
61
62 const QtWaylandClient::QWaylandServerBuffer *bufferForId(const QString &id) const;
63 void requestBuffer(const QString &id);
64 void abandonBuffer(const QString &id);
65
66 static bool preinitialize();
67
68public slots:
69 void receiveBuffer(QtWaylandClient::QWaylandServerBuffer *buffer, const QString &id);
70
71signals:
72 void replyReceived(const QString &id);
73
74private slots:
75 void handleExtensionActive();
76
77private:
78 TextureSharingExtension *m_extension = nullptr;
79 QHash<QString, QtWaylandClient::QWaylandServerBuffer *> m_buffers;
80 QStringList m_pendingBuffers;
81};
82
83class SharedTextureProvider : public QQuickAsyncImageProvider
84{
85public:
86 SharedTextureProvider();
87 ~SharedTextureProvider() override;
88
89 QQuickImageResponse *requestImageResponse(const QString &id, const QSize &requestedSize) override;
90
91private:
92 SharedTextureRegistry *m_registry = nullptr;
93 bool m_sharingAvailable = false;
94};
95
96class SharedTexture : public QSGTexture
97{
98 Q_OBJECT
99public:
100 SharedTexture(QtWaylandClient::QWaylandServerBuffer *buffer);
101
102 int textureId() const override;
103 QSize textureSize() const override;
104 bool hasAlphaChannel() const override;
105 bool hasMipmaps() const override;
106
107 void bind() override;
108
109private:
110 void updateGLTexture() const;
111 QtWaylandClient::QWaylandServerBuffer *m_buffer = nullptr;
112 mutable QOpenGLTexture *m_tex = nullptr;
113};
114
115
116QT_END_NAMESPACE
117
118#endif // SHAREDTEXTUREPROVIDER_H
119

source code of qtwayland/src/imports/texture-sharing/sharedtextureprovider.h