framework/egl/egluNativeDisplay.hpp

#ifndef _EGLUNATIVEDISPLAY_HPP
#define _EGLUNATIVEDISPLAY_HPP
/*-------------------------------------------------------------------------
 * drawElements Quality Program Tester Core
 * ----------------------------------------
 *
 * 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 EGL native display abstraction
 *//*--------------------------------------------------------------------*/

#include "tcuDefs.hpp"
#include "tcuFactoryRegistry.hpp"
#include "egluNativeWindow.hpp"
#include "egluNativePixmap.hpp"
#include "eglwDefs.hpp"

#include <string>

namespace eglw
{
class Library;
}

namespace eglu
{

class NativeDisplay
{
public:
    enum Capability
    {
        CAPABILITY_GET_DISPLAY_LEGACY       = (1 << 0), //!< Query EGL display using eglGetDisplay()
        CAPABILITY_GET_DISPLAY_PLATFORM     = (1 << 1), //!< Query EGL display using eglGetPlatformDisplay()
        CAPABILITY_GET_DISPLAY_PLATFORM_EXT = (1 << 2)  //!< Query EGL display using eglGetPlatformDisplayEXT()
    };

    virtual ~NativeDisplay(void);

    virtual const eglw::Library &getLibrary(void) const = 0;

    Capability getCapabilities(void) const
    {
        return m_capabilities;
    }
    eglw::EGLenum getPlatformType(void) const
    {
        return m_platformType;
    }
    const char *getPlatformExtensionName(void) const
    {
        return (m_platformExtension.empty() ? DE_NULL : m_platformExtension.c_str());
    }

    //! Get EGLNativeDisplayType that can be used with eglGetDisplay(). Default implementation throws tcu::NotSupportedError().
    virtual eglw::EGLNativeDisplayType getLegacyNative(void);

    //! Return display pointer that can be used with eglGetPlatformDisplay(). Default implementations throw tcu::NotSupportedError()
    virtual void *getPlatformNative(void);

    //! Attributes to pass to eglGetPlatformDisplay(EXT)
    virtual const eglw::EGLAttrib *getPlatformAttributes(void) const;

protected:
    NativeDisplay(Capability capabilities, eglw::EGLenum platformType, const char *platformExtension);
    NativeDisplay(Capability capabilities);

private:
    NativeDisplay(const NativeDisplay &);
    NativeDisplay &operator=(const NativeDisplay &);

    const Capability m_capabilities;
    const eglw::EGLenum m_platformType; //!< EGL platform type, or EGL_NONE if not supported.
    const std::string m_platformExtension;
};

class NativeDisplayFactory : public tcu::FactoryBase
{
public:
    virtual ~NativeDisplayFactory(void);

    virtual NativeDisplay *createDisplay(const eglw::EGLAttrib *attribList = DE_NULL) const = 0;

    NativeDisplay::Capability getCapabilities(void) const
    {
        return m_capabilities;
    }
    eglw::EGLenum getPlatformType(void) const
    {
        return m_platformType;
    }
    const char *getPlatformExtensionName(void) const
    {
        return (m_platformExtension.empty() ? DE_NULL : m_platformExtension.c_str());
    }

    const NativeWindowFactoryRegistry &getNativeWindowRegistry(void) const
    {
        return m_nativeWindowRegistry;
    }
    const NativePixmapFactoryRegistry &getNativePixmapRegistry(void) const
    {
        return m_nativePixmapRegistry;
    }

protected:
    NativeDisplayFactory(const std::string &name, const std::string &description,
                         NativeDisplay::Capability capabilities);
    NativeDisplayFactory(const std::string &name, const std::string &description,
                         NativeDisplay::Capability capabilities, eglw::EGLenum platformType,
                         const char *platformExtension);

    NativeWindowFactoryRegistry m_nativeWindowRegistry;
    NativePixmapFactoryRegistry m_nativePixmapRegistry;

private:
    NativeDisplayFactory(const NativeDisplayFactory &);
    NativeDisplayFactory &operator=(const NativeDisplayFactory &);

    const NativeDisplay::Capability m_capabilities;
    const eglw::EGLenum m_platformType;
    const std::string m_platformExtension;
};

typedef tcu::FactoryRegistry<NativeDisplayFactory> NativeDisplayFactoryRegistry;

} // namespace eglu

#endif // _EGLUNATIVEDISPLAY_HPP