Logo Search packages:      
Sourcecode: qt4-x11 version File versions

glextensions.cpp

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License versions 2.0 or 3.0 as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file.  Please review the following information
** to ensure GNU General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.  In addition, as a special
** exception, Nokia gives you certain additional rights. These rights
** are described in the Nokia Qt GPL Exception version 1.3, included in
** the file GPL_EXCEPTION.txt in this package.
**
** Qt for Windows(R) Licensees
** As a special exception, Nokia, as the sole copyright holder for Qt
** Designer, grants users of the Qt/Eclipse Integration plug-in the
** right for the Qt/Eclipse Integration to link to functionality
** provided by Qt Designer and its related libraries.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
****************************************************************************/

#include "glextensions.h"

#define RESOLVE_GL_FUNC(f) ok &= bool((f = (_gl##f) context->getProcAddress(QLatin1String("gl" #f))));

bool GLExtensionFunctions::resolve(const QGLContext *context)
{
      bool ok = true;

      RESOLVE_GL_FUNC(CreateShaderObjectARB)
      RESOLVE_GL_FUNC(ShaderSourceARB)
      RESOLVE_GL_FUNC(CompileShaderARB)
      RESOLVE_GL_FUNC(GetObjectParameterivARB)
      RESOLVE_GL_FUNC(DeleteObjectARB)
      RESOLVE_GL_FUNC(GetInfoLogARB)
      RESOLVE_GL_FUNC(CreateProgramObjectARB)
      RESOLVE_GL_FUNC(AttachObjectARB)
      RESOLVE_GL_FUNC(DetachObjectARB)
      RESOLVE_GL_FUNC(LinkProgramARB)
      RESOLVE_GL_FUNC(UseProgramObjectARB)
      RESOLVE_GL_FUNC(GetUniformLocationARB)
      RESOLVE_GL_FUNC(Uniform1iARB)
      RESOLVE_GL_FUNC(Uniform1fARB)
      RESOLVE_GL_FUNC(Uniform4fARB)
      RESOLVE_GL_FUNC(UniformMatrix4fvARB)

      RESOLVE_GL_FUNC(GenFramebuffersEXT)
      RESOLVE_GL_FUNC(GenRenderbuffersEXT)
      RESOLVE_GL_FUNC(BindRenderbufferEXT)
      RESOLVE_GL_FUNC(RenderbufferStorageEXT)
      RESOLVE_GL_FUNC(DeleteFramebuffersEXT)
      RESOLVE_GL_FUNC(DeleteRenderbuffersEXT)
      RESOLVE_GL_FUNC(BindFramebufferEXT)
      RESOLVE_GL_FUNC(FramebufferTexture2DEXT)
      RESOLVE_GL_FUNC(FramebufferRenderbufferEXT)
      RESOLVE_GL_FUNC(CheckFramebufferStatusEXT)

        RESOLVE_GL_FUNC(ActiveTexture)
      RESOLVE_GL_FUNC(TexImage3D)

        RESOLVE_GL_FUNC(GenBuffers)
      RESOLVE_GL_FUNC(BindBuffer)
      RESOLVE_GL_FUNC(BufferData)
      RESOLVE_GL_FUNC(DeleteBuffers)
      RESOLVE_GL_FUNC(MapBuffer)
      RESOLVE_GL_FUNC(UnmapBuffer)

      return ok;
}

bool GLExtensionFunctions::glslSupported() {
    return CreateShaderObjectARB
          && CreateShaderObjectARB
          && ShaderSourceARB
          && CompileShaderARB
          && GetObjectParameterivARB
          && DeleteObjectARB
          && GetInfoLogARB
          && CreateProgramObjectARB
          && AttachObjectARB
          && DetachObjectARB
          && LinkProgramARB
          && UseProgramObjectARB
          && GetUniformLocationARB
          && Uniform1iARB
          && Uniform1fARB
          && Uniform4fARB
            && UniformMatrix4fvARB;
}

bool GLExtensionFunctions::fboSupported() {
    return GenFramebuffersEXT
          && GenRenderbuffersEXT
          && BindRenderbufferEXT
          && RenderbufferStorageEXT
          && DeleteFramebuffersEXT
          && DeleteRenderbuffersEXT
          && BindFramebufferEXT
          && FramebufferTexture2DEXT
          && FramebufferRenderbufferEXT
          && CheckFramebufferStatusEXT;
}

bool GLExtensionFunctions::openGL15Supported() {
    return ActiveTexture
          && TexImage3D
            && GenBuffers
          && BindBuffer
          && BufferData
          && DeleteBuffers
          && MapBuffer
          && UnmapBuffer;
}

#undef RESOLVE_GL_FUNC

Generated by  Doxygen 1.6.0   Back to index