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50
51#include "glextensions.h"
52
53#define RESOLVE_GL_FUNC(f) ok &= bool((f = (_gl##f) context->getProcAddress(QLatin1String("gl" #f))));
54
55bool GLExtensionFunctions::resolve(const QGLContext *context)
56{
57 bool ok = true;
58
59 RESOLVE_GL_FUNC(GenFramebuffersEXT)
60 RESOLVE_GL_FUNC(GenRenderbuffersEXT)
61 RESOLVE_GL_FUNC(BindRenderbufferEXT)
62 RESOLVE_GL_FUNC(RenderbufferStorageEXT)
63 RESOLVE_GL_FUNC(DeleteFramebuffersEXT)
64 RESOLVE_GL_FUNC(DeleteRenderbuffersEXT)
65 RESOLVE_GL_FUNC(BindFramebufferEXT)
66 RESOLVE_GL_FUNC(FramebufferTexture2DEXT)
67 RESOLVE_GL_FUNC(FramebufferRenderbufferEXT)
68 RESOLVE_GL_FUNC(CheckFramebufferStatusEXT)
69
70 RESOLVE_GL_FUNC(ActiveTexture)
71 RESOLVE_GL_FUNC(TexImage3D)
72
73 RESOLVE_GL_FUNC(GenBuffers)
74 RESOLVE_GL_FUNC(BindBuffer)
75 RESOLVE_GL_FUNC(BufferData)
76 RESOLVE_GL_FUNC(DeleteBuffers)
77 RESOLVE_GL_FUNC(MapBuffer)
78 RESOLVE_GL_FUNC(UnmapBuffer)
79
80 return ok;
81}
82
83bool GLExtensionFunctions::fboSupported() {
84 return GenFramebuffersEXT
85 && GenRenderbuffersEXT
86 && BindRenderbufferEXT
87 && RenderbufferStorageEXT
88 && DeleteFramebuffersEXT
89 && DeleteRenderbuffersEXT
90 && BindFramebufferEXT
91 && FramebufferTexture2DEXT
92 && FramebufferRenderbufferEXT
93 && CheckFramebufferStatusEXT;
94}
95
96bool GLExtensionFunctions::openGL15Supported() {
97 return ActiveTexture
98 && TexImage3D
99 && GenBuffers
100 && BindBuffer
101 && BufferData
102 && DeleteBuffers
103 && MapBuffer
104 && UnmapBuffer;
105}
106
107#undef RESOLVE_GL_FUNC
108

source code of qtbase/examples/widgets/graphicsview/boxes/glextensions.cpp