source: trunk/demos/boxes/glextensions.cpp@ 858

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**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation ([email protected])
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** This file is part of the demonstration applications of the Qt Toolkit.
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#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(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::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