Initial import from the monolithic Qt.

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 897 insertions, 0 deletions

diff --git a/src/opengl/qglextensions_p.h b/src/opengl/qglextensions_p.h
new file mode 100644
index 0000000000..529c7a1b4e
--- /dev/null
+++ b/src/opengl/qglextensions_p.h
@@ -0,0 +1,897 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QGL_EXTENSIONS_P_H
+#define QGL_EXTENSIONS_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of the Qt OpenGL classes.  This header file may change from
+// version to version without notice, or even be removed.
+//
+// We mean it.
+//
+
+// extension prototypes
+#ifndef Q_WS_MAC
+# ifndef APIENTRYP
+#   ifdef APIENTRY
+#     define APIENTRYP APIENTRY *
+#   else
+#     define APIENTRY
+#     define APIENTRYP *
+#   endif
+# endif
+#else
+# define APIENTRY
+# define APIENTRYP *
+#endif
+
+#ifndef QT_NO_EGL
+// Needed for EGLImageKHR definition:
+#include <QtGui/private/qegl_p.h>
+#endif
+
+#include <QtCore/qglobal.h>
+
+#ifndef GL_ARB_vertex_buffer_object
+typedef ptrdiff_t GLintptrARB;
+typedef ptrdiff_t GLsizeiptrARB;
+#endif
+
+#ifndef GL_VERSION_2_0
+typedef char GLchar;
+#endif
+
+// ARB_vertex_buffer_object
+typedef void (APIENTRY *_glBindBuffer) (GLenum, GLuint);
+typedef void (APIENTRY *_glDeleteBuffers) (GLsizei, const GLuint *);
+typedef void (APIENTRY *_glGenBuffers) (GLsizei, GLuint *);
+typedef void (APIENTRY *_glBufferData) (GLenum, GLsizeiptrARB, const GLvoid *, GLenum);
+typedef void (APIENTRY *_glBufferSubData) (GLenum, GLintptrARB, GLsizeiptrARB, const GLvoid *);
+typedef void (APIENTRY *_glGetBufferSubData) (GLenum, GLintptrARB, GLsizeiptrARB, GLvoid *);
+typedef void (APIENTRY *_glGetBufferParameteriv) (GLenum, GLenum, GLint *);
+typedef GLvoid* (APIENTRY *_glMapBufferARB) (GLenum, GLenum);
+typedef GLboolean (APIENTRY *_glUnmapBufferARB) (GLenum);
+// We can call the buffer functions directly in OpenGL/ES 1.1 or higher,
+// but all other platforms need to resolve the extensions.
+#if defined(QT_OPENGL_ES)
+#if defined(GL_OES_VERSION_1_0) && !defined(GL_OES_VERSION_1_1)
+#define QGL_RESOLVE_BUFFER_FUNCS 1
+#endif
+#else
+#define QGL_RESOLVE_BUFFER_FUNCS 1
+#endif
+
+// ARB_fragment_program
+typedef void (APIENTRY *_glProgramStringARB) (GLenum, GLenum, GLsizei, const GLvoid *);
+typedef void (APIENTRY *_glBindProgramARB) (GLenum, GLuint);
+typedef void (APIENTRY *_glDeleteProgramsARB) (GLsizei, const GLuint *);
+typedef void (APIENTRY *_glGenProgramsARB) (GLsizei, GLuint *);
+typedef void (APIENTRY *_glProgramLocalParameter4fvARB) (GLenum, GLuint, const GLfloat *);
+
+// GLSL
+typedef GLuint (APIENTRY *_glCreateShader) (GLenum);
+typedef void (APIENTRY *_glShaderSource) (GLuint, GLsizei, const char **, const GLint *);
+typedef void (APIENTRY *_glShaderBinary) (GLint, const GLuint*, GLenum, const void*, GLint);
+typedef void (APIENTRY *_glCompileShader) (GLuint);
+typedef void (APIENTRY *_glDeleteShader) (GLuint);
+typedef GLboolean (APIENTRY *_glIsShader) (GLuint);
+
+typedef GLuint (APIENTRY *_glCreateProgram) ();
+typedef void (APIENTRY *_glAttachShader) (GLuint, GLuint);
+typedef void (APIENTRY *_glDetachShader) (GLuint, GLuint);
+typedef void (APIENTRY *_glLinkProgram) (GLuint);
+typedef void (APIENTRY *_glUseProgram) (GLuint);
+typedef void (APIENTRY *_glDeleteProgram) (GLuint);
+typedef GLboolean (APIENTRY *_glIsProgram) (GLuint);
+
+typedef void (APIENTRY *_glGetShaderInfoLog) (GLuint, GLsizei, GLsizei *, char *);
+typedef void (APIENTRY *_glGetShaderiv) (GLuint, GLenum, GLint *);
+typedef void (APIENTRY *_glGetShaderSource) (GLuint, GLsizei, GLsizei *, char *);
+typedef void (APIENTRY *_glGetProgramiv) (GLuint, GLenum, GLint *);
+typedef void (APIENTRY *_glGetProgramInfoLog) (GLuint, GLsizei, GLsizei *, char *);
+
+typedef GLuint (APIENTRY *_glGetUniformLocation) (GLuint, const char*);
+typedef void (APIENTRY *_glUniform4fv) (GLint, GLsizei, const GLfloat *);
+typedef void (APIENTRY *_glUniform3fv) (GLint, GLsizei, const GLfloat *);
+typedef void (APIENTRY *_glUniform2fv) (GLint, GLsizei, const GLfloat *);
+typedef void (APIENTRY *_glUniform1fv) (GLint, GLsizei, const GLfloat *);
+typedef void (APIENTRY *_glUniform1i) (GLint, GLint);
+typedef void (APIENTRY *_glUniform1iv) (GLint, GLsizei, const GLint *);
+typedef void (APIENTRY *_glUniformMatrix2fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix3fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix4fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix2x3fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix2x4fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix3x2fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix3x4fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix4x2fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+typedef void (APIENTRY *_glUniformMatrix4x3fv) (GLint, GLsizei, GLboolean, const GLfloat *);
+
+typedef void (APIENTRY *_glBindAttribLocation) (GLuint, GLuint, const char *);
+typedef GLint (APIENTRY *_glGetAttribLocation) (GLuint, const char *);
+typedef void (APIENTRY *_glVertexAttrib1fv) (GLuint, const GLfloat *);
+typedef void (APIENTRY *_glVertexAttrib2fv) (GLuint, const GLfloat *);
+typedef void (APIENTRY *_glVertexAttrib3fv) (GLuint, const GLfloat *);
+typedef void (APIENTRY *_glVertexAttrib4fv) (GLuint, const GLfloat *);
+typedef void (APIENTRY *_glVertexAttribPointer) (GLuint, GLint, GLenum, GLboolean, GLsizei, const GLvoid *);
+typedef void (APIENTRY *_glDisableVertexAttribArray) (GLuint);
+typedef void (APIENTRY *_glEnableVertexAttribArray) (GLuint);
+
+typedef void (APIENTRY *_glGetProgramBinaryOES) (GLuint, GLsizei, GLsizei *, GLenum *, void *);
+typedef void (APIENTRY *_glProgramBinaryOES) (GLuint, GLenum, const void *, GLint);
+
+
+typedef void (APIENTRY *_glMultiTexCoord4f) (GLenum, GLfloat, GLfloat, GLfloat, GLfloat);
+typedef void (APIENTRY *_glActiveStencilFaceEXT) (GLenum );
+
+// Needed for GL2 engine:
+typedef void (APIENTRY *_glStencilOpSeparate) (GLenum face, GLenum sfail, GLenum dpfail, GLenum dppass);
+typedef void (APIENTRY *_glActiveTexture) (GLenum);
+typedef void (APIENTRY *_glBlendColor) (GLclampf, GLclampf, GLclampf, GLclampf);
+
+
+// EXT_GL_framebuffer_object
+typedef GLboolean (APIENTRY *_glIsRenderbuffer) (GLuint renderbuffer);
+typedef void (APIENTRY *_glBindRenderbuffer) (GLenum target, GLuint renderbuffer);
+typedef void (APIENTRY *_glDeleteRenderbuffers) (GLsizei n, const GLuint *renderbuffers);
+typedef void (APIENTRY *_glGenRenderbuffers) (GLsizei n, GLuint *renderbuffers);
+typedef void (APIENTRY *_glRenderbufferStorage) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
+typedef void (APIENTRY *_glGetRenderbufferParameteriv) (GLenum target, GLenum pname, GLint *params);
+typedef GLboolean (APIENTRY *_glIsFramebuffer) (GLuint framebuffer);
+typedef void (APIENTRY *_glBindFramebuffer) (GLenum target, GLuint framebuffer);
+typedef void (APIENTRY *_glDeleteFramebuffers) (GLsizei n, const GLuint *framebuffers);
+typedef void (APIENTRY *_glGenFramebuffers) (GLsizei n, GLuint *framebuffers);
+typedef GLenum (APIENTRY *_glCheckFramebufferStatus) (GLenum target);
+typedef void (APIENTRY *_glFramebufferTexture2D) (GLenum target, GLenum attachment, GLenum textarget,
+                                                           GLuint texture, GLint level);
+typedef void (APIENTRY *_glFramebufferRenderbuffer) (GLenum target, GLenum attachment, GLenum renderbuffertarget,
+                                                              GLuint renderbuffer);
+typedef void (APIENTRY *_glGetFramebufferAttachmentParameteriv) (GLenum target, GLenum attachment, GLenum pname,
+                                                                          GLint *params);
+typedef void (APIENTRY *_glGenerateMipmap) (GLenum target);
+
+// EXT_GL_framebuffer_blit
+typedef void (APIENTRY *_glBlitFramebufferEXT) (int srcX0, int srcY0, int srcX1, int srcY1,
+                                                int dstX0, int dstY0, int dstX1, int dstY1,
+                                                GLbitfield mask, GLenum filter);
+
+// EXT_GL_framebuffer_multisample
+typedef void (APIENTRY *_glRenderbufferStorageMultisampleEXT) (GLenum target, GLsizei samples,
+                                                               GLenum internalformat, GLsizei width, GLsizei height);
+
+// GL_EXT_geometry_shader4
+typedef void (APIENTRY *_glProgramParameteriEXT)(GLuint program, GLenum pname, GLint value);
+typedef void (APIENTRY *_glFramebufferTextureEXT)(GLenum target, GLenum attachment,
+                                                  GLuint texture, GLint level);
+typedef void (APIENTRY *_glFramebufferTextureLayerEXT)(GLenum target, GLenum attachment,
+                                                       GLuint texture, GLint level, GLint layer);
+typedef void (APIENTRY *_glFramebufferTextureFaceEXT)(GLenum target, GLenum attachment,
+                                                      GLuint texture, GLint level, GLenum face);
+
+// ARB_texture_compression
+typedef void (APIENTRY *_glCompressedTexImage2DARB) (GLenum, GLint, GLenum, GLsizei,
+                                                     GLsizei, GLint, GLsizei, const GLvoid *);
+
+#ifndef QT_NO_EGL
+// OES_EGL_image
+// Note: We define these to take EGLImage whereas spec says they take a new GLeglImageOES
+//       type, which the EGL image should be cast to.
+typedef void (APIENTRY *_glEGLImageTargetTexture2DOES) (GLenum, EGLImageKHR);
+typedef void (APIENTRY *_glEGLImageTargetRenderbufferStorageOES) (GLenum, EGLImageKHR);
+#endif
+
+QT_BEGIN_NAMESPACE
+
+struct QGLExtensionFuncs
+{
+    QGLExtensionFuncs() {
+#if !defined(QT_OPENGL_ES_2)
+        qt_glProgramStringARB = 0;
+        qt_glBindProgramARB = 0;
+        qt_glDeleteProgramsARB = 0;
+        qt_glGenProgramsARB = 0;
+        qt_glProgramLocalParameter4fvARB = 0;
+
+        // GLSL
+        qt_glCreateShader = 0;
+        qt_glShaderSource = 0;
+        qt_glShaderBinary = 0;
+        qt_glCompileShader = 0;
+        qt_glDeleteShader = 0;
+        qt_glIsShader = 0;
+
+        qt_glCreateProgram = 0;
+        qt_glAttachShader = 0;
+        qt_glDetachShader = 0;
+        qt_glLinkProgram = 0;
+        qt_glUseProgram = 0;
+        qt_glDeleteProgram = 0;
+        qt_glIsProgram = 0;
+
+        qt_glGetShaderInfoLog = 0;
+        qt_glGetShaderiv = 0;
+        qt_glGetShaderSource = 0;
+        qt_glGetProgramiv = 0;
+        qt_glGetProgramInfoLog = 0;
+
+        qt_glGetUniformLocation = 0;
+        qt_glUniform4fv = 0;
+        qt_glUniform3fv = 0;
+        qt_glUniform2fv = 0;
+        qt_glUniform1fv = 0;
+        qt_glUniform1i = 0;
+        qt_glUniform1iv = 0;
+        qt_glUniformMatrix2fv = 0;
+        qt_glUniformMatrix3fv = 0;
+        qt_glUniformMatrix4fv = 0;
+        qt_glUniformMatrix2x3fv = 0;
+        qt_glUniformMatrix2x4fv = 0;
+        qt_glUniformMatrix3x2fv = 0;
+        qt_glUniformMatrix3x4fv = 0;
+        qt_glUniformMatrix4x2fv = 0;
+        qt_glUniformMatrix4x3fv = 0;
+
+        qt_glBindAttribLocation = 0;
+        qt_glGetAttribLocation = 0;
+        qt_glVertexAttrib1fv = 0;
+        qt_glVertexAttrib2fv = 0;
+        qt_glVertexAttrib3fv = 0;
+        qt_glVertexAttrib4fv = 0;
+        qt_glVertexAttribPointer = 0;
+        qt_glDisableVertexAttribArray = 0;
+        qt_glEnableVertexAttribArray = 0;
+
+        // Extras for GL2 engine:
+        qt_glActiveTexture = 0;
+        qt_glStencilOpSeparate = 0;
+        qt_glBlendColor = 0;
+
+        qt_glActiveStencilFaceEXT = 0;
+        qt_glMultiTexCoord4f = 0;
+#else
+        qt_glslResolved = false;
+
+        qt_glGetProgramBinaryOES = 0;
+        qt_glProgramBinaryOES = 0;
+#endif
+
+        // FBOs
+#if !defined(QT_OPENGL_ES_2)
+        qt_glIsRenderbuffer = 0;
+        qt_glBindRenderbuffer = 0;
+        qt_glDeleteRenderbuffers = 0;
+        qt_glGenRenderbuffers = 0;
+        qt_glRenderbufferStorage = 0;
+        qt_glGetRenderbufferParameteriv = 0;
+        qt_glIsFramebuffer = 0;
+        qt_glBindFramebuffer = 0;
+        qt_glDeleteFramebuffers = 0;
+        qt_glGenFramebuffers = 0;
+        qt_glCheckFramebufferStatus = 0;
+        qt_glFramebufferTexture2D = 0;
+        qt_glFramebufferRenderbuffer = 0;
+        qt_glGetFramebufferAttachmentParameteriv = 0;
+        qt_glGenerateMipmap = 0;
+#endif
+        qt_glBlitFramebufferEXT = 0;
+        qt_glRenderbufferStorageMultisampleEXT = 0;
+
+        // Buffer objects:
+#if defined(QGL_RESOLVE_BUFFER_FUNCS)
+        qt_glBindBuffer = 0;
+        qt_glDeleteBuffers = 0;
+        qt_glGenBuffers = 0;
+        qt_glBufferData = 0;
+        qt_glBufferSubData = 0;
+        qt_glGetBufferSubData = 0;
+        qt_glGetBufferParameteriv = 0;
+#endif
+        qt_glMapBufferARB = 0;
+        qt_glUnmapBufferARB = 0;
+
+        qt_glProgramParameteriEXT = 0;
+        qt_glFramebufferTextureEXT = 0;
+        qt_glFramebufferTextureLayerEXT = 0;
+        qt_glFramebufferTextureFaceEXT = 0;
+#if !defined(QT_OPENGL_ES)
+        // Texture compression
+        qt_glCompressedTexImage2DARB = 0;
+#endif
+
+#ifndef QT_NO_EGL
+        // OES_EGL_image
+        qt_glEGLImageTargetTexture2DOES = 0;
+        qt_glEGLImageTargetRenderbufferStorageOES = 0;
+#endif
+    }
+
+
+#if !defined(QT_OPENGL_ES_2)
+    _glProgramStringARB qt_glProgramStringARB;
+    _glBindProgramARB qt_glBindProgramARB;
+    _glDeleteProgramsARB qt_glDeleteProgramsARB;
+    _glGenProgramsARB qt_glGenProgramsARB;
+    _glProgramLocalParameter4fvARB qt_glProgramLocalParameter4fvARB;
+
+    // GLSL definitions
+    _glCreateShader qt_glCreateShader;
+    _glShaderSource qt_glShaderSource;
+    _glShaderBinary qt_glShaderBinary;
+    _glCompileShader qt_glCompileShader;
+    _glDeleteShader qt_glDeleteShader;
+    _glIsShader qt_glIsShader;
+
+    _glCreateProgram qt_glCreateProgram;
+    _glAttachShader qt_glAttachShader;
+    _glDetachShader qt_glDetachShader;
+    _glLinkProgram qt_glLinkProgram;
+    _glUseProgram qt_glUseProgram;
+    _glDeleteProgram qt_glDeleteProgram;
+    _glIsProgram qt_glIsProgram;
+
+    _glGetShaderInfoLog qt_glGetShaderInfoLog;
+    _glGetShaderiv qt_glGetShaderiv;
+    _glGetShaderSource qt_glGetShaderSource;
+    _glGetProgramiv qt_glGetProgramiv;
+    _glGetProgramInfoLog qt_glGetProgramInfoLog;
+
+    _glGetUniformLocation qt_glGetUniformLocation;
+    _glUniform4fv qt_glUniform4fv;
+    _glUniform3fv qt_glUniform3fv;
+    _glUniform2fv qt_glUniform2fv;
+    _glUniform1fv qt_glUniform1fv;
+    _glUniform1i qt_glUniform1i;
+    _glUniform1iv qt_glUniform1iv;
+    _glUniformMatrix2fv qt_glUniformMatrix2fv;
+    _glUniformMatrix3fv qt_glUniformMatrix3fv;
+    _glUniformMatrix4fv qt_glUniformMatrix4fv;
+    _glUniformMatrix2x3fv qt_glUniformMatrix2x3fv;
+    _glUniformMatrix2x4fv qt_glUniformMatrix2x4fv;
+    _glUniformMatrix3x2fv qt_glUniformMatrix3x2fv;
+    _glUniformMatrix3x4fv qt_glUniformMatrix3x4fv;
+    _glUniformMatrix4x2fv qt_glUniformMatrix4x2fv;
+    _glUniformMatrix4x3fv qt_glUniformMatrix4x3fv;
+
+    _glBindAttribLocation qt_glBindAttribLocation;
+    _glGetAttribLocation qt_glGetAttribLocation;
+    _glVertexAttrib1fv qt_glVertexAttrib1fv;
+    _glVertexAttrib2fv qt_glVertexAttrib2fv;
+    _glVertexAttrib3fv qt_glVertexAttrib3fv;
+    _glVertexAttrib4fv qt_glVertexAttrib4fv;
+    _glVertexAttribPointer qt_glVertexAttribPointer;
+    _glDisableVertexAttribArray qt_glDisableVertexAttribArray;
+    _glEnableVertexAttribArray qt_glEnableVertexAttribArray;
+
+#else
+    bool qt_glslResolved;
+
+    _glGetProgramBinaryOES qt_glGetProgramBinaryOES;
+    _glProgramBinaryOES qt_glProgramBinaryOES;
+#endif
+
+    _glActiveStencilFaceEXT qt_glActiveStencilFaceEXT;
+    _glMultiTexCoord4f qt_glMultiTexCoord4f;
+
+#if !defined(QT_OPENGL_ES_2)
+    // Extras needed for GL2 engine:
+    _glActiveTexture qt_glActiveTexture;
+    _glStencilOpSeparate qt_glStencilOpSeparate;
+    _glBlendColor qt_glBlendColor;
+
+#endif
+
+    // FBOs
+#if !defined(QT_OPENGL_ES_2)
+    _glIsRenderbuffer qt_glIsRenderbuffer;
+    _glBindRenderbuffer qt_glBindRenderbuffer;
+    _glDeleteRenderbuffers qt_glDeleteRenderbuffers;
+    _glGenRenderbuffers qt_glGenRenderbuffers;
+    _glRenderbufferStorage qt_glRenderbufferStorage;
+    _glGetRenderbufferParameteriv qt_glGetRenderbufferParameteriv;
+    _glIsFramebuffer qt_glIsFramebuffer;
+    _glBindFramebuffer qt_glBindFramebuffer;
+    _glDeleteFramebuffers qt_glDeleteFramebuffers;
+    _glGenFramebuffers qt_glGenFramebuffers;
+    _glCheckFramebufferStatus qt_glCheckFramebufferStatus;
+    _glFramebufferTexture2D qt_glFramebufferTexture2D;
+    _glFramebufferRenderbuffer qt_glFramebufferRenderbuffer;
+    _glGetFramebufferAttachmentParameteriv qt_glGetFramebufferAttachmentParameteriv;
+    _glGenerateMipmap qt_glGenerateMipmap;
+#endif
+    _glBlitFramebufferEXT qt_glBlitFramebufferEXT;
+    _glRenderbufferStorageMultisampleEXT qt_glRenderbufferStorageMultisampleEXT;
+
+    // Buffer objects
+#if defined(QGL_RESOLVE_BUFFER_FUNCS)
+    _glBindBuffer qt_glBindBuffer;
+    _glDeleteBuffers qt_glDeleteBuffers;
+    _glGenBuffers qt_glGenBuffers;
+    _glBufferData qt_glBufferData;
+    _glBufferSubData qt_glBufferSubData;
+    _glGetBufferSubData qt_glGetBufferSubData;
+    _glGetBufferParameteriv qt_glGetBufferParameteriv;
+#endif
+    _glMapBufferARB qt_glMapBufferARB;
+    _glUnmapBufferARB qt_glUnmapBufferARB;
+
+    // Geometry shaders...
+    _glProgramParameteriEXT qt_glProgramParameteriEXT;
+    _glFramebufferTextureEXT qt_glFramebufferTextureEXT;
+    _glFramebufferTextureLayerEXT qt_glFramebufferTextureLayerEXT;
+    _glFramebufferTextureFaceEXT qt_glFramebufferTextureFaceEXT;
+#if !defined(QT_OPENGL_ES)
+    // Texture compression
+    _glCompressedTexImage2DARB qt_glCompressedTexImage2DARB;
+#endif
+
+#ifndef QT_NO_EGL
+    // OES_EGL_image
+    _glEGLImageTargetTexture2DOES qt_glEGLImageTargetTexture2DOES;
+    _glEGLImageTargetRenderbufferStorageOES qt_glEGLImageTargetRenderbufferStorageOES;
+#endif
+};
+
+
+// OpenGL constants
+
+#ifndef GL_ARRAY_BUFFER
+#define GL_ARRAY_BUFFER                   0x8892
+#endif
+
+#ifndef GL_STATIC_DRAW
+#define GL_STATIC_DRAW                    0x88E4
+#endif
+
+/* NV_texture_rectangle */
+#ifndef GL_NV_texture_rectangle
+#define GL_TEXTURE_RECTANGLE_NV           0x84F5
+#define GL_TEXTURE_BINDING_RECTANGLE_NV   0x84F6
+#define GL_PROXY_TEXTURE_RECTANGLE_NV     0x84F7
+#define GL_MAX_RECTANGLE_TEXTURE_SIZE_NV  0x84F8
+#endif
+
+#ifndef GL_BGRA
+#define GL_BGRA 0x80E1
+#endif
+
+#ifndef GL_RGB16
+#define GL_RGB16 0x8054
+#endif
+
+#ifndef GL_UNSIGNED_SHORT_5_6_5
+#define GL_UNSIGNED_SHORT_5_6_5 0x8363
+#endif
+
+#ifndef GL_UNSIGNED_INT_8_8_8_8_REV
+#define GL_UNSIGNED_INT_8_8_8_8_REV 0x8367
+#endif
+
+#ifndef GL_MULTISAMPLE
+#define GL_MULTISAMPLE  0x809D
+#endif
+
+#ifndef GL_CLAMP_TO_EDGE
+#define GL_CLAMP_TO_EDGE 0x812F
+#endif
+
+#ifndef GL_IBM_texture_mirrored_repeat
+#define GL_MIRRORED_REPEAT_IBM            0x8370
+#endif
+
+#ifndef GL_SGIS_generate_mipmap
+#define GL_GENERATE_MIPMAP_SGIS           0x8191
+#define GL_GENERATE_MIPMAP_HINT_SGIS      0x8192
+#endif
+
+// ARB_fragment_program extension protos
+#ifndef GL_FRAGMENT_PROGRAM_ARB
+#define GL_FRAGMENT_PROGRAM_ARB           0x8804
+#define GL_PROGRAM_FORMAT_ASCII_ARB       0x8875
+#endif
+
+#ifndef GL_PIXEL_UNPACK_BUFFER_ARB
+#define GL_PIXEL_UNPACK_BUFFER_ARB 0x88EC
+#endif
+
+#ifndef GL_WRITE_ONLY_ARB
+#define GL_WRITE_ONLY_ARB 0x88B9
+#endif
+
+#ifndef GL_STREAM_DRAW_ARB
+#define GL_STREAM_DRAW_ARB 0x88E0
+#endif
+
+// Stencil wrap and two-side defines
+#ifndef GL_STENCIL_TEST_TWO_SIDE_EXT
+#define GL_STENCIL_TEST_TWO_SIDE_EXT 0x8910
+#endif
+#ifndef GL_INCR_WRAP_EXT
+#define GL_INCR_WRAP_EXT 0x8507
+#endif
+#ifndef GL_DECR_WRAP_EXT
+#define GL_DECR_WRAP_EXT 0x8508
+#endif
+
+#ifndef GL_TEXTURE0
+#define GL_TEXTURE0 0x84C0
+#endif
+
+#ifndef GL_TEXTURE1
+#define GL_TEXTURE1 0x84C1
+#endif
+
+#ifndef GL_DEPTH_COMPONENT16
+#define GL_DEPTH_COMPONENT16 0x81A5
+#endif
+
+#ifndef GL_DEPTH_COMPONENT24_OES
+#define GL_DEPTH_COMPONENT24_OES 0x81A6
+#endif
+
+#ifndef GL_EXT_framebuffer_object
+#define GL_INVALID_FRAMEBUFFER_OPERATION_EXT                    0x0506
+#define GL_MAX_RENDERBUFFER_SIZE_EXT                            0x84E8
+#define GL_FRAMEBUFFER_BINDING_EXT                              0x8CA6
+#define GL_RENDERBUFFER_BINDING_EXT                             0x8CA7
+#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT               0x8CD0
+#define GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT               0x8CD1
+#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT             0x8CD2
+#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT     0x8CD3
+#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT        0x8CD4
+#define GL_FRAMEBUFFER_COMPLETE_EXT                             0x8CD5
+#define GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT                0x8CD6
+#define GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT        0x8CD7
+#define GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT_EXT      0x8CD8
+#define GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT                0x8CD9
+#define GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT                   0x8CDA
+#define GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT               0x8CDB
+#define GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT               0x8CDC
+#define GL_FRAMEBUFFER_UNSUPPORTED_EXT                          0x8CDD
+#define GL_MAX_COLOR_ATTACHMENTS_EXT                            0x8CDF
+#define GL_COLOR_ATTACHMENT0_EXT                                0x8CE0
+#define GL_COLOR_ATTACHMENT1_EXT                                0x8CE1
+#define GL_COLOR_ATTACHMENT2_EXT                                0x8CE2
+#define GL_COLOR_ATTACHMENT3_EXT                                0x8CE3
+#define GL_COLOR_ATTACHMENT4_EXT                                0x8CE4
+#define GL_COLOR_ATTACHMENT5_EXT                                0x8CE5
+#define GL_COLOR_ATTACHMENT6_EXT                                0x8CE6
+#define GL_COLOR_ATTACHMENT7_EXT                                0x8CE7
+#define GL_COLOR_ATTACHMENT8_EXT                                0x8CE8
+#define GL_COLOR_ATTACHMENT9_EXT                                0x8CE9
+#define GL_COLOR_ATTACHMENT10_EXT                               0x8CEA
+#define GL_COLOR_ATTACHMENT11_EXT                               0x8CEB
+#define GL_COLOR_ATTACHMENT12_EXT                               0x8CEC
+#define GL_COLOR_ATTACHMENT13_EXT                               0x8CED
+#define GL_COLOR_ATTACHMENT14_EXT                               0x8CEE
+#define GL_COLOR_ATTACHMENT15_EXT                               0x8CEF
+#define GL_DEPTH_ATTACHMENT_EXT                                 0x8D00
+#define GL_STENCIL_ATTACHMENT_EXT                               0x8D20
+#define GL_FRAMEBUFFER_EXT                                      0x8D40
+#define GL_RENDERBUFFER_EXT                                     0x8D41
+#define GL_RENDERBUFFER_WIDTH_EXT                               0x8D42
+#define GL_RENDERBUFFER_HEIGHT_EXT                              0x8D43
+#define GL_RENDERBUFFER_INTERNAL_FORMAT_EXT                     0x8D44
+#define GL_STENCIL_INDEX_EXT                                    0x8D45
+#define GL_STENCIL_INDEX1_EXT                                   0x8D46
+#define GL_STENCIL_INDEX4_EXT                                   0x8D47
+#define GL_STENCIL_INDEX8_EXT                                   0x8D48
+#define GL_STENCIL_INDEX16_EXT                                  0x8D49
+#define GL_RENDERBUFFER_RED_SIZE_EXT                            0x8D50
+#define GL_RENDERBUFFER_GREEN_SIZE_EXT                          0x8D51
+#define GL_RENDERBUFFER_BLUE_SIZE_EXT                           0x8D52
+#define GL_RENDERBUFFER_ALPHA_SIZE_EXT                          0x8D53
+#define GL_RENDERBUFFER_DEPTH_SIZE_EXT                          0x8D54
+#define GL_RENDERBUFFER_STENCIL_SIZE_EXT                        0x8D55
+#endif
+
+// GL_EXT_framebuffer_blit
+#ifndef GL_READ_FRAMEBUFFER_EXT
+#define GL_READ_FRAMEBUFFER_EXT                                 0x8CA8
+#endif
+
+// GL_EXT_framebuffer_multisample
+#ifndef GL_RENDERBUFFER_SAMPLES_EXT
+#define GL_RENDERBUFFER_SAMPLES_EXT                             0x8CAB
+#endif
+
+#ifndef GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT
+#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT               0x8D56
+#endif
+
+#ifndef GL_MAX_SAMPLES_EXT
+#define GL_MAX_SAMPLES_EXT                                      0x8D57
+#endif
+
+#ifndef GL_DRAW_FRAMEBUFFER_EXT
+#define GL_DRAW_FRAMEBUFFER_EXT                                 0x8CA9
+#endif
+
+#ifndef GL_EXT_packed_depth_stencil
+#define GL_DEPTH_STENCIL_EXT                                    0x84F9
+#define GL_UNSIGNED_INT_24_8_EXT                                0x84FA
+#define GL_DEPTH24_STENCIL8_EXT                                 0x88F0
+#define GL_TEXTURE_STENCIL_SIZE_EXT                             0x88F1
+#endif
+
+// ### hm. should be part of the GL 1.2 spec..
+#ifndef GL_CLAMP_TO_EDGE
+#define GL_CLAMP_TO_EDGE                  0x812F
+#endif
+
+#ifndef GL_VERSION_1_2
+#define GL_PACK_SKIP_IMAGES               0x806B
+#define GL_PACK_IMAGE_HEIGHT              0x806C
+#define GL_UNPACK_SKIP_IMAGES             0x806D
+#define GL_UNPACK_IMAGE_HEIGHT            0x806E
+#endif
+
+#ifndef GL_VERSION_1_4
+#define GL_CONSTANT_COLOR 0x8001
+#define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
+#define GL_CONSTANT_ALPHA 0x8003
+#define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
+#define GL_INCR_WRAP 0x8507
+#define GL_DECR_WRAP 0x8508
+#endif
+
+#ifndef GL_VERSION_1_5
+#define GL_ARRAY_BUFFER                                         0x8892
+#define GL_ELEMENT_ARRAY_BUFFER                                 0x8893
+#define GL_STREAM_DRAW                                          0x88E0
+#define GL_STREAM_READ                                          0x88E1
+#define GL_STREAM_COPY                                          0x88E2
+#define GL_STATIC_DRAW                                          0x88E4
+#define GL_STATIC_READ                                          0x88E5
+#define GL_STATIC_COPY                                          0x88E6
+#define GL_DYNAMIC_DRAW                                         0x88E8
+#define GL_DYNAMIC_READ                                         0x88E9
+#define GL_DYNAMIC_COPY                                         0x88EA
+#endif
+
+#ifndef GL_VERSION_2_0
+#define GL_FRAGMENT_SHADER 0x8B30
+#define GL_VERTEX_SHADER 0x8B31
+#define GL_FLOAT_VEC2 0x8B50
+#define GL_FLOAT_VEC3 0x8B51
+#define GL_FLOAT_VEC4 0x8B52
+#define GL_INT_VEC2 0x8B53
+#define GL_INT_VEC3 0x8B54
+#define GL_INT_VEC4 0x8B55
+#define GL_BOOL 0x8B56
+#define GL_BOOL_VEC2 0x8B57
+#define GL_BOOL_VEC3 0x8B58
+#define GL_BOOL_VEC4 0x8B59
+#define GL_FLOAT_MAT2 0x8B5A
+#define GL_FLOAT_MAT3 0x8B5B
+#define GL_FLOAT_MAT4 0x8B5C
+#define GL_SAMPLER_1D 0x8B5D
+#define GL_SAMPLER_2D 0x8B5E
+#define GL_SAMPLER_3D 0x8B5F
+#define GL_SAMPLER_CUBE 0x8B60
+#define GL_COMPILE_STATUS 0x8B81
+#define GL_LINK_STATUS 0x8B82
+#define GL_INFO_LOG_LENGTH 0x8B84
+#define GL_ACTIVE_UNIFORMS 0x8B86
+#define GL_ACTIVE_UNIFORM_MAX_LENGTH 0x8B87
+#define GL_ACTIVE_ATTRIBUTES 0x8B89
+#define GL_ACTIVE_ATTRIBUTE_MAX_LENGTH 0x8B8A
+#endif
+
+// Geometry shader defines
+#ifndef GL_GEOMETRY_SHADER_EXT
+#  define GL_GEOMETRY_SHADER_EXT 0x8DD9
+#  define GL_GEOMETRY_VERTICES_OUT_EXT 0x8DDA
+#  define GL_GEOMETRY_INPUT_TYPE_EXT 0x8DDB
+#  define GL_GEOMETRY_OUTPUT_TYPE_EXT 0x8DDC
+#  define GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS_EXT 0x8C29
+#  define GL_MAX_GEOMETRY_VARYING_COMPONENTS_EXT 0x8DDD
+#  define GL_MAX_VERTEX_VARYING_COMPONENTS_EXT 0x8DDE
+#  define GL_MAX_VARYING_COMPONENTS_EXT 0x8B4B
+#  define GL_MAX_GEOMETRY_UNIFORM_COMPONENTS_EXT 0x8DDF
+#  define GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT 0x8DE0
+#  define GL_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS_EXT 0x8DE1
+#  define GL_LINES_ADJACENCY_EXT 0xA
+#  define GL_LINE_STRIP_ADJACENCY_EXT 0xB
+#  define GL_TRIANGLES_ADJACENCY_EXT 0xC
+#  define GL_TRIANGLE_STRIP_ADJACENCY_EXT 0xD
+#  define GL_FRAMEBUFFER_INCOMPLETE_LAYER_TARGETS_EXT 0x8DA8
+#  define GL_FRAMEBUFFER_INCOMPLETE_LAYER_COUNT_EXT 0x8DA9
+#  define GL_FRAMEBUFFER_ATTACHMENT_LAYERED_EXT 0x8DA7
+#  define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER_EXT 0x8CD4
+#  define GL_PROGRAM_POINT_SIZE_EXT 0x8642
+#endif
+
+#if !defined(QT_OPENGL_ES_2)
+#define glProgramStringARB QGLContextPrivate::extensionFuncs(ctx).qt_glProgramStringARB
+#define glBindProgramARB QGLContextPrivate::extensionFuncs(ctx).qt_glBindProgramARB
+#define glDeleteProgramsARB QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteProgramsARB
+#define glGenProgramsARB QGLContextPrivate::extensionFuncs(ctx).qt_glGenProgramsARB
+#define glProgramLocalParameter4fvARB QGLContextPrivate::extensionFuncs(ctx).qt_glProgramLocalParameter4fvARB
+
+#define glActiveStencilFaceEXT QGLContextPrivate::extensionFuncs(ctx).qt_glActiveStencilFaceEXT
+
+#define glMultiTexCoord4f QGLContextPrivate::extensionFuncs(ctx).qt_glMultiTexCoord4f
+
+#define glActiveTexture QGLContextPrivate::extensionFuncs(ctx).qt_glActiveTexture
+#endif // !defined(QT_OPENGL_ES_2)
+
+
+// FBOs
+#if !defined(QT_OPENGL_ES_2)
+#define glIsRenderbuffer QGLContextPrivate::extensionFuncs(ctx).qt_glIsRenderbuffer
+#define glBindRenderbuffer QGLContextPrivate::extensionFuncs(ctx).qt_glBindRenderbuffer
+#define glDeleteRenderbuffers QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteRenderbuffers
+#define glGenRenderbuffers QGLContextPrivate::extensionFuncs(ctx).qt_glGenRenderbuffers
+#define glRenderbufferStorage QGLContextPrivate::extensionFuncs(ctx).qt_glRenderbufferStorage
+#define glGetRenderbufferParameteriv QGLContextPrivate::extensionFuncs(ctx).qt_glGetRenderbufferParameteriv
+#define glIsFramebuffer QGLContextPrivate::extensionFuncs(ctx).qt_glIsFramebuffer
+#define glBindFramebuffer QGLContextPrivate::extensionFuncs(ctx).qt_glBindFramebuffer
+#define glDeleteFramebuffers QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteFramebuffers
+#define glGenFramebuffers QGLContextPrivate::extensionFuncs(ctx).qt_glGenFramebuffers
+#define glCheckFramebufferStatus QGLContextPrivate::extensionFuncs(ctx).qt_glCheckFramebufferStatus
+#define glFramebufferTexture2D QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTexture2D
+#define glFramebufferRenderbuffer QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferRenderbuffer
+#define glGetFramebufferAttachmentParameteriv QGLContextPrivate::extensionFuncs(ctx).qt_glGetFramebufferAttachmentParameteriv
+#define glGenerateMipmap QGLContextPrivate::extensionFuncs(ctx).qt_glGenerateMipmap
+#endif // QT_OPENGL_ES_2
+#define glBlitFramebufferEXT QGLContextPrivate::extensionFuncs(ctx).qt_glBlitFramebufferEXT
+#define glRenderbufferStorageMultisampleEXT QGLContextPrivate::extensionFuncs(ctx).qt_glRenderbufferStorageMultisampleEXT
+
+
+// Buffer objects
+#if defined(QGL_RESOLVE_BUFFER_FUNCS)
+#define glBindBuffer QGLContextPrivate::extensionFuncs(ctx).qt_glBindBuffer
+#define glDeleteBuffers QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteBuffers
+#define glGenBuffers QGLContextPrivate::extensionFuncs(ctx).qt_glGenBuffers
+#define glBufferData QGLContextPrivate::extensionFuncs(ctx).qt_glBufferData
+#define glBufferSubData QGLContextPrivate::extensionFuncs(ctx).qt_glBufferSubData
+#define glGetBufferSubData QGLContextPrivate::extensionFuncs(ctx).qt_glGetBufferSubData
+#define glGetBufferParameteriv QGLContextPrivate::extensionFuncs(ctx).qt_glGetBufferParameteriv
+#endif
+#define glMapBufferARB QGLContextPrivate::extensionFuncs(ctx).qt_glMapBufferARB
+#define glUnmapBufferARB QGLContextPrivate::extensionFuncs(ctx).qt_glUnmapBufferARB
+
+
+// GLSL
+#if !defined(QT_OPENGL_ES_2)
+
+#define glCreateShader QGLContextPrivate::extensionFuncs(ctx).qt_glCreateShader
+#define glShaderSource QGLContextPrivate::extensionFuncs(ctx).qt_glShaderSource
+#define glShaderBinary QGLContextPrivate::extensionFuncs(ctx).qt_glShaderBinary
+#define glCompileShader QGLContextPrivate::extensionFuncs(ctx).qt_glCompileShader
+#define glDeleteShader QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteShader
+#define glIsShader QGLContextPrivate::extensionFuncs(ctx).qt_glIsShader
+
+#define glCreateProgram QGLContextPrivate::extensionFuncs(ctx).qt_glCreateProgram
+#define glAttachShader QGLContextPrivate::extensionFuncs(ctx).qt_glAttachShader
+#define glDetachShader QGLContextPrivate::extensionFuncs(ctx).qt_glDetachShader
+#define glLinkProgram QGLContextPrivate::extensionFuncs(ctx).qt_glLinkProgram
+#define glUseProgram QGLContextPrivate::extensionFuncs(ctx).qt_glUseProgram
+#define glDeleteProgram QGLContextPrivate::extensionFuncs(ctx).qt_glDeleteProgram
+#define glIsProgram QGLContextPrivate::extensionFuncs(ctx).qt_glIsProgram
+
+#define glGetShaderInfoLog QGLContextPrivate::extensionFuncs(ctx).qt_glGetShaderInfoLog
+#define glGetShaderiv QGLContextPrivate::extensionFuncs(ctx).qt_glGetShaderiv
+#define glGetShaderSource QGLContextPrivate::extensionFuncs(ctx).qt_glGetShaderSource
+#define glGetProgramiv QGLContextPrivate::extensionFuncs(ctx).qt_glGetProgramiv
+#define glGetProgramInfoLog QGLContextPrivate::extensionFuncs(ctx).qt_glGetProgramInfoLog
+
+#define glGetUniformLocation QGLContextPrivate::extensionFuncs(ctx).qt_glGetUniformLocation
+#define glUniform4fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniform4fv
+#define glUniform3fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniform3fv
+#define glUniform2fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniform2fv
+#define glUniform1fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniform1fv
+#define glUniform1i QGLContextPrivate::extensionFuncs(ctx).qt_glUniform1i
+#define glUniform1iv QGLContextPrivate::extensionFuncs(ctx).qt_glUniform1iv
+#define glUniformMatrix2fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix2fv
+#define glUniformMatrix3fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix3fv
+#define glUniformMatrix4fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix4fv
+#define glUniformMatrix2x3fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix2x3fv
+#define glUniformMatrix2x4fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix2x4fv
+#define glUniformMatrix3x2fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix3x2fv
+#define glUniformMatrix3x4fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix3x4fv
+#define glUniformMatrix4x2fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix4x2fv
+#define glUniformMatrix4x3fv QGLContextPrivate::extensionFuncs(ctx).qt_glUniformMatrix4x3fv
+
+#define glBindAttribLocation QGLContextPrivate::extensionFuncs(ctx).qt_glBindAttribLocation
+#define glGetAttribLocation QGLContextPrivate::extensionFuncs(ctx).qt_glGetAttribLocation
+#define glVertexAttrib1fv QGLContextPrivate::extensionFuncs(ctx).qt_glVertexAttrib1fv
+#define glVertexAttrib2fv QGLContextPrivate::extensionFuncs(ctx).qt_glVertexAttrib2fv
+#define glVertexAttrib3fv QGLContextPrivate::extensionFuncs(ctx).qt_glVertexAttrib3fv
+#define glVertexAttrib4fv QGLContextPrivate::extensionFuncs(ctx).qt_glVertexAttrib4fv
+#define glVertexAttribPointer QGLContextPrivate::extensionFuncs(ctx).qt_glVertexAttribPointer
+#define glDisableVertexAttribArray QGLContextPrivate::extensionFuncs(ctx).qt_glDisableVertexAttribArray
+#define glEnableVertexAttribArray QGLContextPrivate::extensionFuncs(ctx).qt_glEnableVertexAttribArray
+
+#else // QT_OPENGL_ES_2
+
+#define glGetProgramBinaryOES QGLContextPrivate::extensionFuncs(ctx).qt_glGetProgramBinaryOES
+#define glProgramBinaryOES QGLContextPrivate::extensionFuncs(ctx).qt_glProgramBinaryOES
+
+#endif // QT_OPENGL_ES_2
+
+
+#if !defined(QT_OPENGL_ES_2)
+#define glStencilOpSeparate QGLContextPrivate::extensionFuncs(ctx).qt_glStencilOpSeparate
+#define glBlendColor QGLContextPrivate::extensionFuncs(ctx).qt_glBlendColor
+#endif
+
+#if defined(QT_OPENGL_ES_2)
+#define glClearDepth glClearDepthf
+#endif
+
+#define glProgramParameteriEXT QGLContextPrivate::extensionFuncs(ctx).qt_glProgramParameteriEXT
+#define glFramebufferTextureEXT QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTextureEXT
+#define glFramebufferTextureLayerEXT QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTextureLayerEXT
+#define glFramebufferTextureFaceEXT QGLContextPrivate::extensionFuncs(ctx).qt_glFramebufferTextureFaceEXT
+
+#if !defined(QT_OPENGL_ES)
+#define glCompressedTexImage2D QGLContextPrivate::extensionFuncs(ctx).qt_glCompressedTexImage2DARB
+#endif
+
+#ifndef QT_NO_EGL
+// OES_EGL_image
+#define glEGLImageTargetTexture2DOES QGLContextPrivate::extensionFuncs(ctx).qt_glEGLImageTargetTexture2DOES
+#define glEGLImageTargetRenderbufferStorageOES QGLContextPrivate::extensionFuncs(ctx).qt_glEGLImageTargetRenderbufferStorageOES
+#endif
+
+extern bool qt_resolve_framebufferobject_extensions(QGLContext *ctx);
+bool Q_OPENGL_EXPORT qt_resolve_buffer_extensions(QGLContext *ctx);
+
+bool qt_resolve_version_1_3_functions(QGLContext *ctx);
+bool Q_OPENGL_EXPORT qt_resolve_version_2_0_functions(QGLContext *ctx);
+bool qt_resolve_stencil_face_extension(QGLContext *ctx);
+bool qt_resolve_frag_program_extensions(QGLContext *ctx);
+
+bool qt_resolve_glsl_extensions(QGLContext *ctx);
+
+#ifndef QT_NO_EGL
+Q_OPENGL_EXPORT bool qt_resolve_eglimage_gl_extensions(QGLContext *ctx);
+#endif
+
+QT_END_NAMESPACE
+
+#endif // QGL_EXTENSIONS_P_H