--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/opengl/qglextensions.cpp Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,404 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgl_p.h"
+
+QT_BEGIN_NAMESPACE
+
+static void *qt_gl_getProcAddress_search
+ (QGLContext *ctx, const char *name1, const char *name2,
+ const char *name3, const char *name4)
+{
+ void *addr;
+
+ addr = ctx->getProcAddress(QLatin1String(name1));
+ if (addr)
+ return addr;
+
+ addr = ctx->getProcAddress(QLatin1String(name2));
+ if (addr)
+ return addr;
+
+ addr = ctx->getProcAddress(QLatin1String(name3));
+ if (addr)
+ return addr;
+
+ if (name4)
+ return ctx->getProcAddress(QLatin1String(name4));
+
+ return 0;
+}
+
+// Search for an extension function starting with the most likely
+// function suffix first, and then trying the other variations.
+#if defined(QT_OPENGL_ES)
+#define qt_gl_getProcAddress(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name, name "OES", name "EXT", name "ARB")
+#define qt_gl_getProcAddressEXT(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name "OES", name, name "EXT", name "ARB")
+#define qt_gl_getProcAddressARB(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name "OES", name, name "ARB", name "EXT")
+#define qt_gl_getProcAddressOES(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name "OES", name, name "EXT", name "ARB")
+#else
+#define qt_gl_getProcAddress(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name, name "ARB", name "EXT", 0)
+#define qt_gl_getProcAddressEXT(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name "EXT", name, name "ARB", 0)
+#define qt_gl_getProcAddressARB(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name "ARB", name, name "EXT", 0)
+#define qt_gl_getProcAddressOES(ctx,name) \
+ qt_gl_getProcAddress_search((ctx), name "OES", name, name "EXT", name "ARB")
+#endif
+
+bool qt_resolve_framebufferobject_extensions(QGLContext *ctx)
+{
+#if defined(QT_OPENGL_ES_2)
+ static bool have_resolved = false;
+ if (have_resolved)
+ return true;
+ have_resolved = true;
+#else
+ if (glIsRenderbuffer != 0)
+ return true;
+#endif
+
+ if (ctx == 0) {
+ qWarning("QGLFramebufferObject: Unable to resolve framebuffer object extensions -"
+ " make sure there is a current context when creating the framebuffer object.");
+ return false;
+ }
+
+
+ glBlitFramebufferEXT = (_glBlitFramebufferEXT) qt_gl_getProcAddressEXT(ctx, "glBlitFramebuffer");
+ glRenderbufferStorageMultisampleEXT =
+ (_glRenderbufferStorageMultisampleEXT) qt_gl_getProcAddressEXT(ctx, "glRenderbufferStorageMultisample");
+
+#if !defined(QT_OPENGL_ES_2)
+ glIsRenderbuffer = (_glIsRenderbuffer) qt_gl_getProcAddressEXT(ctx, "glIsRenderbuffer");
+ if (!glIsRenderbuffer)
+ return false; // Not much point searching for anything else.
+ glBindRenderbuffer = (_glBindRenderbuffer) qt_gl_getProcAddressEXT(ctx, "glBindRenderbuffer");
+ glDeleteRenderbuffers = (_glDeleteRenderbuffers) qt_gl_getProcAddressEXT(ctx, "glDeleteRenderbuffers");
+ glGenRenderbuffers = (_glGenRenderbuffers) qt_gl_getProcAddressEXT(ctx, "glGenRenderbuffers");
+ glRenderbufferStorage = (_glRenderbufferStorage) qt_gl_getProcAddressEXT(ctx, "glRenderbufferStorage");
+ glGetRenderbufferParameteriv =
+ (_glGetRenderbufferParameteriv) qt_gl_getProcAddressEXT(ctx, "glGetRenderbufferParameteriv");
+ glIsFramebuffer = (_glIsFramebuffer) qt_gl_getProcAddressEXT(ctx, "glIsFramebuffer");
+ glBindFramebuffer = (_glBindFramebuffer) qt_gl_getProcAddressEXT(ctx, "glBindFramebuffer");
+ glDeleteFramebuffers = (_glDeleteFramebuffers) qt_gl_getProcAddressEXT(ctx, "glDeleteFramebuffers");
+ glGenFramebuffers = (_glGenFramebuffers) qt_gl_getProcAddressEXT(ctx, "glGenFramebuffers");
+ glCheckFramebufferStatus = (_glCheckFramebufferStatus) qt_gl_getProcAddressEXT(ctx, "glCheckFramebufferStatus");
+ glFramebufferTexture2D = (_glFramebufferTexture2D) qt_gl_getProcAddressEXT(ctx, "glFramebufferTexture2D");
+ glFramebufferRenderbuffer = (_glFramebufferRenderbuffer) qt_gl_getProcAddressEXT(ctx, "glFramebufferRenderbuffer");
+ glGetFramebufferAttachmentParameteriv =
+ (_glGetFramebufferAttachmentParameteriv) qt_gl_getProcAddressEXT(ctx, "glGetFramebufferAttachmentParameteriv");
+ glGenerateMipmap = (_glGenerateMipmap) qt_gl_getProcAddressEXT(ctx, "glGenerateMipmap");
+
+ return glIsRenderbuffer != 0;
+#else
+ return true;
+#endif
+}
+
+#if !defined(QT_OPENGL_ES_2)
+bool qt_resolve_version_1_3_functions(QGLContext *ctx)
+{
+ if (glMultiTexCoord4f != 0)
+ return true;
+
+ QGLContext cx(QGLFormat::defaultFormat());
+ glMultiTexCoord4f = (_glMultiTexCoord4f) ctx->getProcAddress(QLatin1String("glMultiTexCoord4f"));
+
+ glActiveTexture = (_glActiveTexture) ctx->getProcAddress(QLatin1String("glActiveTexture"));
+ return glMultiTexCoord4f && glActiveTexture;
+}
+#endif
+
+#if !defined(QT_OPENGL_ES_2)
+bool qt_resolve_stencil_face_extension(QGLContext *ctx)
+{
+ if (glActiveStencilFaceEXT != 0)
+ return true;
+
+ QGLContext cx(QGLFormat::defaultFormat());
+ glActiveStencilFaceEXT = (_glActiveStencilFaceEXT) ctx->getProcAddress(QLatin1String("glActiveStencilFaceEXT"));
+
+ return glActiveStencilFaceEXT;
+}
+#endif
+
+
+#if !defined(QT_OPENGL_ES_2)
+bool qt_resolve_frag_program_extensions(QGLContext *ctx)
+{
+ if (glProgramStringARB != 0)
+ return true;
+
+ // ARB_fragment_program
+ glProgramStringARB = (_glProgramStringARB) ctx->getProcAddress(QLatin1String("glProgramStringARB"));
+ glBindProgramARB = (_glBindProgramARB) ctx->getProcAddress(QLatin1String("glBindProgramARB"));
+ glDeleteProgramsARB = (_glDeleteProgramsARB) ctx->getProcAddress(QLatin1String("glDeleteProgramsARB"));
+ glGenProgramsARB = (_glGenProgramsARB) ctx->getProcAddress(QLatin1String("glGenProgramsARB"));
+ glProgramLocalParameter4fvARB = (_glProgramLocalParameter4fvARB) ctx->getProcAddress(QLatin1String("glProgramLocalParameter4fvARB"));
+
+ return glProgramStringARB
+ && glBindProgramARB
+ && glDeleteProgramsARB
+ && glGenProgramsARB
+ && glProgramLocalParameter4fvARB;
+}
+#endif
+
+
+bool qt_resolve_buffer_extensions(QGLContext *ctx)
+{
+ if (glMapBufferARB && glUnmapBufferARB
+#if !defined(QT_OPENGL_ES_2)
+ && glBindBuffer && glDeleteBuffers && glGenBuffers && glBufferData
+#endif
+ )
+ return true;
+
+#if !defined(QT_OPENGL_ES_2)
+ glBindBuffer = (_glBindBuffer) qt_gl_getProcAddressARB(ctx, "glBindBuffer");
+ glDeleteBuffers = (_glDeleteBuffers) qt_gl_getProcAddressARB(ctx, "glDeleteBuffers");
+ glGenBuffers = (_glGenBuffers) qt_gl_getProcAddressARB(ctx, "glGenBuffers");
+ glBufferData = (_glBufferData) qt_gl_getProcAddressARB(ctx, "glBufferData");
+#endif
+ glMapBufferARB = (_glMapBufferARB) qt_gl_getProcAddressARB(ctx, "glMapBuffer");
+ glUnmapBufferARB = (_glUnmapBufferARB) qt_gl_getProcAddressARB(ctx, "glUnmapBuffer");
+
+ return glMapBufferARB
+ && glUnmapBufferARB
+#if !defined(QT_OPENGL_ES_2)
+ && glBindBuffer
+ && glDeleteBuffers
+ && glGenBuffers
+ && glBufferData
+#endif
+ ;
+}
+
+bool qt_resolve_glsl_extensions(QGLContext *ctx)
+{
+#if defined(QT_OPENGL_ES_2)
+ // The GLSL shader functions are always present in OpenGL/ES 2.0.
+ // The only exceptions are glGetProgramBinaryOES and glProgramBinaryOES.
+ if (!QGLContextPrivate::extensionFuncs(ctx).qt_glslResolved) {
+ glGetProgramBinaryOES = (_glGetProgramBinaryOES) ctx->getProcAddress(QLatin1String("glGetProgramBinaryOES"));
+ glProgramBinaryOES = (_glProgramBinaryOES) ctx->getProcAddress(QLatin1String("glProgramBinaryOES"));
+ QGLContextPrivate::extensionFuncs(ctx).qt_glslResolved = true;
+ }
+ return true;
+#else
+ if (glCreateShader)
+ return true;
+
+ glCreateShader = (_glCreateShader) ctx->getProcAddress(QLatin1String("glCreateShader"));
+ if (glCreateShader) {
+ glShaderSource = (_glShaderSource) ctx->getProcAddress(QLatin1String("glShaderSource"));
+ glShaderBinary = (_glShaderBinary) ctx->getProcAddress(QLatin1String("glShaderBinary"));
+ glCompileShader = (_glCompileShader) ctx->getProcAddress(QLatin1String("glCompileShader"));
+ glDeleteShader = (_glDeleteShader) ctx->getProcAddress(QLatin1String("glDeleteShader"));
+ glIsShader = (_glIsShader) ctx->getProcAddress(QLatin1String("glIsShader"));
+
+ glCreateProgram = (_glCreateProgram) ctx->getProcAddress(QLatin1String("glCreateProgram"));
+ glAttachShader = (_glAttachShader) ctx->getProcAddress(QLatin1String("glAttachShader"));
+ glDetachShader = (_glDetachShader) ctx->getProcAddress(QLatin1String("glDetachShader"));
+ glLinkProgram = (_glLinkProgram) ctx->getProcAddress(QLatin1String("glLinkProgram"));
+ glUseProgram = (_glUseProgram) ctx->getProcAddress(QLatin1String("glUseProgram"));
+ glDeleteProgram = (_glDeleteProgram) ctx->getProcAddress(QLatin1String("glDeleteProgram"));
+ glIsProgram = (_glIsProgram) ctx->getProcAddress(QLatin1String("glIsProgram"));
+
+ glGetShaderInfoLog = (_glGetShaderInfoLog) ctx->getProcAddress(QLatin1String("glGetShaderInfoLog"));
+ glGetShaderiv = (_glGetShaderiv) ctx->getProcAddress(QLatin1String("glGetShaderiv"));
+ glGetShaderSource = (_glGetShaderSource) ctx->getProcAddress(QLatin1String("glGetShaderSource"));
+ glGetProgramiv = (_glGetProgramiv) ctx->getProcAddress(QLatin1String("glGetProgramiv"));
+ glGetProgramInfoLog = (_glGetProgramInfoLog) ctx->getProcAddress(QLatin1String("glGetProgramInfoLog"));
+
+ glGetUniformLocation = (_glGetUniformLocation) ctx->getProcAddress(QLatin1String("glGetUniformLocation"));
+ glUniform4fv = (_glUniform4fv) ctx->getProcAddress(QLatin1String("glUniform4fv"));
+ glUniform3fv = (_glUniform3fv) ctx->getProcAddress(QLatin1String("glUniform3fv"));
+ glUniform2fv = (_glUniform2fv) ctx->getProcAddress(QLatin1String("glUniform2fv"));
+ glUniform1fv = (_glUniform1fv) ctx->getProcAddress(QLatin1String("glUniform1fv"));
+ glUniform1i = (_glUniform1i) ctx->getProcAddress(QLatin1String("glUniform1i"));
+ glUniform1iv = (_glUniform1iv) ctx->getProcAddress(QLatin1String("glUniform1iv"));
+ glUniformMatrix2fv = (_glUniformMatrix2fv) ctx->getProcAddress(QLatin1String("glUniformMatrix2fv"));
+ glUniformMatrix3fv = (_glUniformMatrix3fv) ctx->getProcAddress(QLatin1String("glUniformMatrix3fv"));
+ glUniformMatrix4fv = (_glUniformMatrix4fv) ctx->getProcAddress(QLatin1String("glUniformMatrix4fv"));
+ glUniformMatrix2x3fv = (_glUniformMatrix2x3fv) ctx->getProcAddress(QLatin1String("glUniformMatrix2x3fv"));
+ glUniformMatrix2x4fv = (_glUniformMatrix2x4fv) ctx->getProcAddress(QLatin1String("glUniformMatrix2x4fv"));
+ glUniformMatrix3x2fv = (_glUniformMatrix3x2fv) ctx->getProcAddress(QLatin1String("glUniformMatrix3x2fv"));
+ glUniformMatrix3x4fv = (_glUniformMatrix3x4fv) ctx->getProcAddress(QLatin1String("glUniformMatrix3x4fv"));
+ glUniformMatrix4x2fv = (_glUniformMatrix4x2fv) ctx->getProcAddress(QLatin1String("glUniformMatrix4x2fv"));
+ glUniformMatrix4x3fv = (_glUniformMatrix4x3fv) ctx->getProcAddress(QLatin1String("glUniformMatrix4x3fv"));
+
+ glBindAttribLocation = (_glBindAttribLocation) ctx->getProcAddress(QLatin1String("glBindAttribLocation"));
+ glGetAttribLocation = (_glGetAttribLocation) ctx->getProcAddress(QLatin1String("glGetAttribLocation"));
+ glVertexAttrib1fv = (_glVertexAttrib1fv) ctx->getProcAddress(QLatin1String("glVertexAttrib1fv"));
+ glVertexAttrib2fv = (_glVertexAttrib2fv) ctx->getProcAddress(QLatin1String("glVertexAttrib2fv"));
+ glVertexAttrib3fv = (_glVertexAttrib3fv) ctx->getProcAddress(QLatin1String("glVertexAttrib3fv"));
+ glVertexAttrib4fv = (_glVertexAttrib4fv) ctx->getProcAddress(QLatin1String("glVertexAttrib4fv"));
+ glVertexAttribPointer = (_glVertexAttribPointer) ctx->getProcAddress(QLatin1String("glVertexAttribPointer"));
+ glDisableVertexAttribArray = (_glDisableVertexAttribArray) ctx->getProcAddress(QLatin1String("glDisableVertexAttribArray"));
+ glEnableVertexAttribArray = (_glEnableVertexAttribArray) ctx->getProcAddress(QLatin1String("glEnableVertexAttribArray"));
+
+ } else {
+ // We may not have the standard shader functions, but we might
+ // have the older ARB functions instead.
+ glCreateShader = (_glCreateShader) ctx->getProcAddress(QLatin1String("glCreateShaderObjectARB"));
+ glShaderSource = (_glShaderSource) ctx->getProcAddress(QLatin1String("glShaderSourceARB"));
+ glShaderBinary = (_glShaderBinary) ctx->getProcAddress(QLatin1String("glShaderBinaryARB"));
+ glCompileShader = (_glCompileShader) ctx->getProcAddress(QLatin1String("glCompileShaderARB"));
+ glDeleteShader = (_glDeleteShader) ctx->getProcAddress(QLatin1String("glDeleteObjectARB"));
+ glIsShader = 0;
+
+ glCreateProgram = (_glCreateProgram) ctx->getProcAddress(QLatin1String("glCreateProgramObjectARB"));
+ glAttachShader = (_glAttachShader) ctx->getProcAddress(QLatin1String("glAttachObjectARB"));
+ glDetachShader = (_glDetachShader) ctx->getProcAddress(QLatin1String("glDetachObjectARB"));
+ glLinkProgram = (_glLinkProgram) ctx->getProcAddress(QLatin1String("glLinkProgramARB"));
+ glUseProgram = (_glUseProgram) ctx->getProcAddress(QLatin1String("glUseProgramObjectARB"));
+ glDeleteProgram = (_glDeleteProgram) ctx->getProcAddress(QLatin1String("glDeleteObjectARB"));
+ glIsProgram = 0;
+
+ glGetShaderInfoLog = (_glGetShaderInfoLog) ctx->getProcAddress(QLatin1String("glGetInfoLogARB"));
+ glGetShaderiv = (_glGetShaderiv) ctx->getProcAddress(QLatin1String("glGetObjectParameterivARB"));
+ glGetShaderSource = (_glGetShaderSource) ctx->getProcAddress(QLatin1String("glGetShaderSourceARB"));
+ glGetProgramiv = (_glGetProgramiv) ctx->getProcAddress(QLatin1String("glGetObjectParameterivARB"));
+ glGetProgramInfoLog = (_glGetProgramInfoLog) ctx->getProcAddress(QLatin1String("glGetInfoLogARB"));
+
+ glGetUniformLocation = (_glGetUniformLocation) ctx->getProcAddress(QLatin1String("glGetUniformLocationARB"));
+ glUniform4fv = (_glUniform4fv) ctx->getProcAddress(QLatin1String("glUniform4fvARB"));
+ glUniform3fv = (_glUniform3fv) ctx->getProcAddress(QLatin1String("glUniform3fvARB"));
+ glUniform2fv = (_glUniform2fv) ctx->getProcAddress(QLatin1String("glUniform2fvARB"));
+ glUniform1fv = (_glUniform1fv) ctx->getProcAddress(QLatin1String("glUniform1fvARB"));
+ glUniform1i = (_glUniform1i) ctx->getProcAddress(QLatin1String("glUniform1iARB"));
+ glUniform1iv = (_glUniform1iv) ctx->getProcAddress(QLatin1String("glUniform1ivARB"));
+ glUniformMatrix2fv = (_glUniformMatrix2fv) ctx->getProcAddress(QLatin1String("glUniformMatrix2fvARB"));
+ glUniformMatrix3fv = (_glUniformMatrix3fv) ctx->getProcAddress(QLatin1String("glUniformMatrix3fvARB"));
+ glUniformMatrix4fv = (_glUniformMatrix4fv) ctx->getProcAddress(QLatin1String("glUniformMatrix4fvARB"));
+ glUniformMatrix2x3fv = (_glUniformMatrix2x3fv) ctx->getProcAddress(QLatin1String("glUniformMatrix2x3fvARB"));
+ glUniformMatrix2x4fv = (_glUniformMatrix2x4fv) ctx->getProcAddress(QLatin1String("glUniformMatrix2x4fvARB"));
+ glUniformMatrix3x2fv = (_glUniformMatrix3x2fv) ctx->getProcAddress(QLatin1String("glUniformMatrix3x2fvARB"));
+ glUniformMatrix3x4fv = (_glUniformMatrix3x4fv) ctx->getProcAddress(QLatin1String("glUniformMatrix3x4fvARB"));
+ glUniformMatrix4x2fv = (_glUniformMatrix4x2fv) ctx->getProcAddress(QLatin1String("glUniformMatrix4x2fvARB"));
+ glUniformMatrix4x3fv = (_glUniformMatrix4x3fv) ctx->getProcAddress(QLatin1String("glUniformMatrix4x3fvARB"));
+
+ glBindAttribLocation = (_glBindAttribLocation) ctx->getProcAddress(QLatin1String("glBindAttribLocationARB"));
+ glGetAttribLocation = (_glGetAttribLocation) ctx->getProcAddress(QLatin1String("glGetAttribLocationARB"));
+ glVertexAttrib1fv = (_glVertexAttrib1fv) ctx->getProcAddress(QLatin1String("glVertexAttrib1fvARB"));
+ glVertexAttrib2fv = (_glVertexAttrib2fv) ctx->getProcAddress(QLatin1String("glVertexAttrib2fvARB"));
+ glVertexAttrib3fv = (_glVertexAttrib3fv) ctx->getProcAddress(QLatin1String("glVertexAttrib3fvARB"));
+ glVertexAttrib4fv = (_glVertexAttrib4fv) ctx->getProcAddress(QLatin1String("glVertexAttrib4fvARB"));
+ glVertexAttribPointer = (_glVertexAttribPointer) ctx->getProcAddress(QLatin1String("glVertexAttribPointerARB"));
+ glDisableVertexAttribArray = (_glDisableVertexAttribArray) ctx->getProcAddress(QLatin1String("glDisableVertexAttribArrayARB"));
+ glEnableVertexAttribArray = (_glEnableVertexAttribArray) ctx->getProcAddress(QLatin1String("glEnableVertexAttribArrayARB"));
+ }
+
+ // Note: glShaderBinary(), glIsShader(), glIsProgram(), and
+ // glUniformMatrixNxMfv() are optional, but all other functions
+ // are required.
+
+ return glCreateShader &&
+ glShaderSource &&
+ glCompileShader &&
+ glDeleteProgram &&
+ glCreateProgram &&
+ glAttachShader &&
+ glDetachShader &&
+ glLinkProgram &&
+ glUseProgram &&
+ glDeleteProgram &&
+ glGetShaderInfoLog &&
+ glGetShaderiv &&
+ glGetShaderSource &&
+ glGetProgramiv &&
+ glGetProgramInfoLog &&
+ glGetUniformLocation &&
+ glUniform1fv &&
+ glUniform2fv &&
+ glUniform3fv &&
+ glUniform4fv &&
+ glUniform1i &&
+ glUniform1iv &&
+ glUniformMatrix2fv &&
+ glUniformMatrix3fv &&
+ glUniformMatrix4fv &&
+ glBindAttribLocation &&
+ glGetAttribLocation &&
+ glVertexAttrib1fv &&
+ glVertexAttrib2fv &&
+ glVertexAttrib3fv &&
+ glVertexAttrib4fv &&
+ glVertexAttribPointer &&
+ glDisableVertexAttribArray &&
+ glEnableVertexAttribArray;
+#endif
+}
+
+#if !defined(QT_OPENGL_ES_2)
+bool qt_resolve_version_2_0_functions(QGLContext *ctx)
+{
+ bool gl2supported = true;
+ if (!qt_resolve_glsl_extensions(ctx))
+ gl2supported = false;
+
+ if (!qt_resolve_version_1_3_functions(ctx))
+ gl2supported = false;
+
+ if (!qt_resolve_framebufferobject_extensions(ctx))
+ gl2supported = false;
+
+ if (glStencilOpSeparate)
+ return gl2supported;
+
+ glBlendColor = (_glBlendColor) ctx->getProcAddress(QLatin1String("glBlendColor"));
+ glStencilOpSeparate = (_glStencilOpSeparate) ctx->getProcAddress(QLatin1String("glStencilOpSeparate"));
+ if (!glBlendColor || !glStencilOpSeparate)
+ gl2supported = false;
+
+ return gl2supported;
+}
+#endif
+
+
+QT_END_NAMESPACE