source: trunk/demos/boxes/glextensions.cpp@ 374

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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(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