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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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
bool qt_resolve_framebufferobject_extensions(QGLContext *ctx)
{
#if !defined(QT_OPENGL_ES_2)
if (glIsRenderbufferEXT != 0)
return true;
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;
}
glIsRenderbufferEXT = (_glIsRenderbufferEXT) ctx->getProcAddress(QLatin1String("glIsRenderbufferEXT"));
glBindRenderbufferEXT = (_glBindRenderbufferEXT) ctx->getProcAddress(QLatin1String("glBindRenderbufferEXT"));
glDeleteRenderbuffersEXT = (_glDeleteRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteRenderbuffersEXT"));
glGenRenderbuffersEXT = (_glGenRenderbuffersEXT) ctx->getProcAddress(QLatin1String("glGenRenderbuffersEXT"));
glRenderbufferStorageEXT = (_glRenderbufferStorageEXT) ctx->getProcAddress(QLatin1String("glRenderbufferStorageEXT"));
glGetRenderbufferParameterivEXT =
(_glGetRenderbufferParameterivEXT) ctx->getProcAddress(QLatin1String("glGetRenderbufferParameterivEXT"));
glIsFramebufferEXT = (_glIsFramebufferEXT) ctx->getProcAddress(QLatin1String("glIsFramebufferEXT"));
glBindFramebufferEXT = (_glBindFramebufferEXT) ctx->getProcAddress(QLatin1String("glBindFramebufferEXT"));
glDeleteFramebuffersEXT = (_glDeleteFramebuffersEXT) ctx->getProcAddress(QLatin1String("glDeleteFramebuffersEXT"));
glGenFramebuffersEXT = (_glGenFramebuffersEXT) ctx->getProcAddress(QLatin1String("glGenFramebuffersEXT"));
glCheckFramebufferStatusEXT = (_glCheckFramebufferStatusEXT) ctx->getProcAddress(QLatin1String("glCheckFramebufferStatusEXT"));
glFramebufferTexture1DEXT = (_glFramebufferTexture1DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture1DEXT"));
glFramebufferTexture2DEXT = (_glFramebufferTexture2DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture2DEXT"));
glFramebufferTexture3DEXT = (_glFramebufferTexture3DEXT) ctx->getProcAddress(QLatin1String("glFramebufferTexture3DEXT"));
glFramebufferRenderbufferEXT = (_glFramebufferRenderbufferEXT) ctx->getProcAddress(QLatin1String("glFramebufferRenderbufferEXT"));
glGetFramebufferAttachmentParameterivEXT =
(_glGetFramebufferAttachmentParameterivEXT) ctx->getProcAddress(QLatin1String("glGetFramebufferAttachmentParameterivEXT"));
glGenerateMipmapEXT = (_glGenerateMipmapEXT) ctx->getProcAddress(QLatin1String("glGenerateMipmapEXT"));
return glIsRenderbufferEXT;
#else
Q_UNUSED(ctx);
return true;
#endif
}
bool qt_resolve_version_1_3_functions(QGLContext *ctx)
{
if (glMultiTexCoord4f != 0)
return true;
QGLContext cx(QGLFormat::defaultFormat());
glMultiTexCoord4f = (_glMultiTexCoord4f) ctx->getProcAddress(QLatin1String("glMultiTexCoord4f"));
#if defined(QT_OPENGL_ES_2)
return glMultiTexCoord4f;
#else
glActiveTexture = (_glActiveTexture) ctx->getProcAddress(QLatin1String("glActiveTexture"));
return glMultiTexCoord4f && glActiveTexture;
#endif
}
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;
}
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;
}
bool qt_resolve_buffer_extensions(QGLContext *ctx)
{
if (glBindBufferARB && glDeleteBuffersARB && glGenBuffersARB && glBufferDataARB
&& glMapBufferARB && glUnmapBufferARB)
return true;
glBindBufferARB = (_glBindBufferARB) ctx->getProcAddress(QLatin1String("glBindBufferARB"));
glDeleteBuffersARB = (_glDeleteBuffersARB) ctx->getProcAddress(QLatin1String("glDeleteBuffersARB"));
glGenBuffersARB = (_glGenBuffersARB) ctx->getProcAddress(QLatin1String("glGenBuffersARB"));
glBufferDataARB = (_glBufferDataARB) ctx->getProcAddress(QLatin1String("glBufferDataARB"));
glMapBufferARB = (_glMapBufferARB) ctx->getProcAddress(QLatin1String("glMapBufferARB"));
glUnmapBufferARB = (_glUnmapBufferARB) ctx->getProcAddress(QLatin1String("glUnmapBufferARB"));
return glBindBufferARB
&& glDeleteBuffersARB
&& glGenBuffersARB
&& glBufferDataARB
&& glMapBufferARB
&& glUnmapBufferARB;
}
bool qt_resolve_glsl_extensions(QGLContext *ctx)
{
if (glCreateShader)
return true;
glCreateShader = (_glCreateShader) ctx->getProcAddress(QLatin1String("glCreateShader"));
glShaderSource = (_glShaderSource) ctx->getProcAddress(QLatin1String("glShaderSource"));
glCompileShader = (_glCompileShader) ctx->getProcAddress(QLatin1String("glCompileShader"));
glDeleteShader = (_glDeleteShader) ctx->getProcAddress(QLatin1String("glDeleteShader"));
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"));
glGetShaderInfoLog = (_glGetShaderInfoLog) ctx->getProcAddress(QLatin1String("glGetShaderInfoLog"));
glGetShaderiv = (_glGetShaderiv) ctx->getProcAddress(QLatin1String("glGetShaderiv"));
glGetProgramiv = (_glGetProgramiv) ctx->getProcAddress(QLatin1String("glGetProgramiv"));
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"));
return glCreateShader && glShaderSource && glCompileShader && glDeleteProgram &&
glCreateProgram && glAttachShader && glDetachShader && glLinkProgram && glUseProgram &&
glDeleteProgram && glGetShaderInfoLog && glGetShaderiv && glGetProgramiv && glGetUniformLocation &&
glUniform1i && glUniform1fv && glUniform2fv && glUniform3fv && glUniform4fv;
}
QT_END_NAMESPACE
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