source: trunk/src/opengl/qglextensions.cpp@ 443

Last change on this file since 443 was 2, checked in by Dmitry A. Kuminov, 16 years ago

Initially imported qt-all-opensource-src-4.5.1 from Trolltech.
File size: 9.2 KB
Line 
1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** Contact: Qt Software Information ([email protected])
5**
6** This file is part of the QtOpenGL module of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:LGPL$
9** Commercial Usage
10** Licensees holding valid Qt Commercial licenses may use this file in
11** accordance with the Qt Commercial License Agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and Nokia.
14**
15** GNU Lesser General Public License Usage
16** Alternatively, this file may be used under the terms of the GNU Lesser
17** General Public License version 2.1 as published by the Free Software
18** Foundation and appearing in the file LICENSE.LGPL included in the
19** packaging of this file. Please review the following information to
20** ensure the GNU Lesser General Public License version 2.1 requirements
21** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
22**
23** In addition, as a special exception, Nokia gives you certain
24** additional rights. These rights are described in the Nokia Qt LGPL
25** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
26** package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you are unsure which license is appropriate for your use, please
37** contact the sales department at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#include "qgl_p.h"
43
44QT_BEGIN_NAMESPACE
45
46bool qt_resolve_framebufferobject_extensions(QGLContext *ctx)
47{
48#if !defined(QT_OPENGL_ES_2)
49 if (glIsRenderbufferEXT != 0)
50 return true;
51
52 if (ctx == 0) {
53 qWarning("QGLFramebufferObject: Unable to resolve framebuffer object extensions -"
54 " make sure there is a current context when creating the framebuffer object.");
55 return false;
56 }
57
58 glIsRenderbufferEXT = (_glIsRenderbufferEXT) ctx->getProcAddress(QLatin1String("glIsRenderbufferEXT"));
59 glBindRenderbufferEXT = (_glBindRenderbufferEXT) ctx->getProcAddress(QLatin1String("glBindRenderbufferEXT"));
60 glDeleteRenderbuffersEXT = (_glDeleteRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteRenderbuffersEXT"));
61 glGenRenderbuffersEXT = (_glGenRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glGenRenderbuffersEXT"));
62 glRenderbufferStorageEXT = (_glRenderbufferStorageEXT) ctx->getProcAddress(QLatin1String("glRenderbufferStorageEXT"));
63 glGetRenderbufferParameterivEXT =
64 (_glGetRenderbufferParameterivEXT) ctx->getProcAddress(QLatin1String("glGetRenderbufferParameterivEXT"));
65 glIsFramebufferEXT = (_glIsFramebufferEXT) ctx->getProcAddress(QLatin1String("glIsFramebufferEXT"));
66 glBindFramebufferEXT = (_glBindFramebufferEXT) ctx->getProcAddress(QLatin1String("glBindFramebufferEXT"));
67 glDeleteFramebuffersEXT = (_glDeleteFramebuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteFramebuffersEXT"));
68 glGenFramebuffersEXT = (_glGenFramebuffersEXT) ctx->getProcAddress(QLatin1String("glGenFramebuffersEXT"));
69 glCheckFramebufferStatusEXT = (_glCheckFramebufferStatusEXT) ctx->getProcAddress(QLatin1String("glCheckFramebufferStatusEXT"));
70 glFramebufferTexture1DEXT = (_glFramebufferTexture1DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture1DEXT"));
71 glFramebufferTexture2DEXT = (_glFramebufferTexture2DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture2DEXT"));
72 glFramebufferTexture3DEXT = (_glFramebufferTexture3DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture3DEXT"));
73 glFramebufferRenderbufferEXT = (_glFramebufferRenderbufferEXT) ctx->getProcAddress(QLatin1String("glFramebufferRenderbufferEXT"));
74 glGetFramebufferAttachmentParameterivEXT =
75 (_glGetFramebufferAttachmentParameterivEXT) ctx->getProcAddress(QLatin1String("glGetFramebufferAttachmentParameterivEXT"));
76 glGenerateMipmapEXT = (_glGenerateMipmapEXT) ctx->getProcAddress(QLatin1String("glGenerateMipmapEXT"));
77 return glIsRenderbufferEXT;
78#else
79 Q_UNUSED(ctx);
80 return true;
81#endif
82}
83
84bool qt_resolve_version_1_3_functions(QGLContext *ctx)
85{
86 if (glMultiTexCoord4f != 0)
87 return true;
88
89 QGLContext cx(QGLFormat::defaultFormat());
90 glMultiTexCoord4f = (_glMultiTexCoord4f) ctx->getProcAddress(QLatin1String("glMultiTexCoord4f"));
91
92#if defined(QT_OPENGL_ES_2)
93 return glMultiTexCoord4f;
94#else
95 glActiveTexture = (_glActiveTexture) ctx->getProcAddress(QLatin1String("glActiveTexture"));
96 return glMultiTexCoord4f && glActiveTexture;
97#endif
98}
99
100bool qt_resolve_stencil_face_extension(QGLContext *ctx)