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39
40#ifndef QOPENGL_EXTENSIONS_P_H
41#define QOPENGL_EXTENSIONS_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists for the convenience
48// of the Qt OpenGL classes. This header file may change from
49// version to version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/private/qtguiglobal_p.h>
55#include "qopenglextrafunctions.h"
56
57QT_BEGIN_NAMESPACE
58
59class QOpenGLExtensionsPrivate;
60
61class Q_GUI_EXPORT QOpenGLExtensions : public QOpenGLExtraFunctions
62{
63 Q_DECLARE_PRIVATE(QOpenGLExtensions)
64public:
65 QOpenGLExtensions();
66 QOpenGLExtensions(QOpenGLContext *context);
67 ~QOpenGLExtensions() {}
68
69 enum OpenGLExtension {
70 TextureRectangle = 0x00000001,
71 GenerateMipmap = 0x00000002,
72 TextureCompression = 0x00000004,
73 MirroredRepeat = 0x00000008,
74 FramebufferMultisample = 0x00000010,
75 StencilTwoSide = 0x00000020,
76 StencilWrap = 0x00000040,
77 PackedDepthStencil = 0x00000080,
78 NVFloatBuffer = 0x00000100,
79 PixelBufferObject = 0x00000200,
80 FramebufferBlit = 0x00000400,
81 BGRATextureFormat = 0x00000800,
82 DDSTextureCompression = 0x00001000,
83 ETC1TextureCompression = 0x00002000,
84 PVRTCTextureCompression = 0x00004000,
85 ElementIndexUint = 0x00008000,
86 Depth24 = 0x00010000,
87 SRGBFrameBuffer = 0x00020000,
88 MapBuffer = 0x00040000,
89 GeometryShaders = 0x00080000,
90 MapBufferRange = 0x00100000,
91 Sized8Formats = 0x00200000,
92 DiscardFramebuffer = 0x00400000,
93 Sized16Formats = 0x00800000,
94 TextureSwizzle = 0x01000000,
95 };
96 Q_DECLARE_FLAGS(OpenGLExtensions, OpenGLExtension)
97
98 OpenGLExtensions openGLExtensions();
99 bool hasOpenGLExtension(QOpenGLExtensions::OpenGLExtension extension) const;
100
101 GLvoid *glMapBuffer(GLenum target, GLenum access);
102 void glGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data);
103 void glDiscardFramebufferEXT (GLenum target, GLsizei numAttachments, const GLenum *attachments);
104
105 void flushShared();
106
107 QOpenGLExtensionsPrivate *d() const;
108
109private:
110 static bool isInitialized(const QOpenGLFunctionsPrivate *d) { return d != nullptr; }
111};
112
113Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLExtensions::OpenGLExtensions)
114
115class QOpenGLExtensionsPrivate : public QOpenGLExtraFunctionsPrivate
116{
117public:
118 explicit QOpenGLExtensionsPrivate(QOpenGLContext *ctx);
119
120 GLvoid* (QOPENGLF_APIENTRYP MapBuffer)(GLenum target, GLenum access);
121 void (QOPENGLF_APIENTRYP GetBufferSubData)(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data);
122 void (QOPENGLF_APIENTRYP DiscardFramebuffer)(GLenum target, GLsizei numAttachments, const GLenum *attachments);
123
124 bool flushVendorChecked;
125 bool flushIsSufficientToSyncContexts;
126};
127
128inline QOpenGLExtensionsPrivate *QOpenGLExtensions::d() const
129{
130 return static_cast<QOpenGLExtensionsPrivate *>(d_ptr);
131}
132
133inline GLvoid *QOpenGLExtensions::glMapBuffer(GLenum target, GLenum access)
134{
135 Q_D(QOpenGLExtensions);
136 Q_ASSERT(QOpenGLExtensions::isInitialized(d));
137 GLvoid *result = d->MapBuffer(target, access);
138 Q_OPENGL_FUNCTIONS_DEBUG
139 return result;
140}
141
142inline void QOpenGLExtensions::glGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data)
143{
144 Q_D(QOpenGLExtensions);
145 Q_ASSERT(QOpenGLExtensions::isInitialized(d));
146 d->GetBufferSubData(target, offset, size, data);
147 Q_OPENGL_FUNCTIONS_DEBUG
148}
149
150
151inline void QOpenGLExtensions::glDiscardFramebufferEXT (GLenum target, GLsizei numAttachments, const GLenum *attachments)
152{
153 Q_D(QOpenGLExtensions);
154 Q_ASSERT(QOpenGLExtensions::isInitialized(d));
155 d->DiscardFramebuffer(target,numAttachments, attachments);
156 Q_OPENGL_FUNCTIONS_DEBUG
157}
158QT_END_NAMESPACE
159
160#endif // QOPENGL_EXTENSIONS_P_H
161