framework/opengl/gluFboRenderContext.hpp

#ifndef _GLUFBORENDERCONTEXT_HPP
#define _GLUFBORENDERCONTEXT_HPP
/*-------------------------------------------------------------------------
 * drawElements Quality Program OpenGL ES Utilities
 * ------------------------------------------------
 *
 * Copyright 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief OpenGL ES context wrapper that uses FBO as default framebuffer.
 *//*--------------------------------------------------------------------*/

#include "tcuDefs.hpp"
#include "gluRenderContext.hpp"
#include "tcuRenderTarget.hpp"

namespace tcu
{
class CommandLine;
}

namespace glu
{

class ContextFactory;
struct RenderConfig;

/*--------------------------------------------------------------------*//*!
 * \brief OpenGL ES context wrapper that uses FBO as default framebuffer.
 *//*--------------------------------------------------------------------*/
class FboRenderContext : public RenderContext
{
public:
    FboRenderContext(RenderContext *context, const RenderConfig &config);
    FboRenderContext(const ContextFactory &factory, const RenderConfig &config, const tcu::CommandLine &cmdLine);
    virtual ~FboRenderContext(void);

    virtual ContextType getType(void) const
    {
        return m_context->getType();
    }
    virtual const glw::Functions &getFunctions(void) const
    {
        return m_context->getFunctions();
    }
    virtual const tcu::RenderTarget &getRenderTarget(void) const
    {
        return m_renderTarget;
    }
    virtual void postIterate(void);

    virtual uint32_t getDefaultFramebuffer(void) const
    {
        return m_framebuffer;
    }
    virtual glw::GenericFuncType getProcAddress(const char *name) const
    {
        return m_context->getProcAddress(name);
    }

    virtual void makeCurrent(void);

private:
    void createFramebuffer(const RenderConfig &config);
    void destroyFramebuffer(void);

    RenderContext *m_context;
    uint32_t m_framebuffer;
    uint32_t m_colorBuffer;
    uint32_t m_depthStencilBuffer;
    tcu::RenderTarget m_renderTarget;
};

// RenderConfig to format mapping utilities, useful for platforms like iOS.
uint32_t chooseColorFormat(const RenderConfig &config);
uint32_t chooseDepthStencilFormat(const RenderConfig &config);

} // namespace glu

#endif // _GLUFBORENDERCONTEXT_HPP