framework/egl/egluUnique.hpp

#ifndef _EGLUUNIQUE_HPP
#define _EGLUUNIQUE_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 unique resources
 *//*--------------------------------------------------------------------*/

#include "egluDefs.hpp"
#include "eglwDefs.hpp"
#include "eglwEnums.hpp"

namespace eglw
{
class Library;
}

namespace eglu
{

class UniqueDisplay
{
public:
							UniqueDisplay	(const eglw::Library& egl, eglw::EGLDisplay display);
							~UniqueDisplay	(void);

	eglw::EGLDisplay		operator*		(void) const { return m_display; }
	operator				bool			(void) const { return m_display != EGL_NO_DISPLAY; }

private:
	const eglw::Library&	m_egl;
	eglw::EGLDisplay		m_display;

	// Disabled
	UniqueDisplay&			operator=		(const UniqueDisplay&);
							UniqueDisplay	(const UniqueDisplay&);
};

class UniqueSurface
{
public:
							UniqueSurface	(const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLSurface surface);
							~UniqueSurface	(void);

	eglw::EGLSurface		operator*		(void) const { return m_surface; }
	operator				bool			(void) const { return m_surface != EGL_NO_SURFACE; }

private:
	const eglw::Library&	m_egl;
	eglw::EGLDisplay		m_display;
	eglw::EGLSurface		m_surface;

	// Disabled
	UniqueSurface&			operator=		(const UniqueSurface&);
							UniqueSurface	(const UniqueSurface&);
};

class UniqueContext
{
public:
							UniqueContext	(const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLContext context);
							~UniqueContext	(void);

	eglw::EGLContext		operator*		(void) const { return m_context; }
	operator				bool			(void) const { return m_context != EGL_NO_CONTEXT; }

private:
	const eglw::Library&	m_egl;
	eglw::EGLDisplay		m_display;
	eglw::EGLContext		m_context;

	// Disabled
	UniqueContext			operator=		(const UniqueContext&);
							UniqueContext	(const UniqueContext&);
};

class ScopedCurrentContext
{
public:
	ScopedCurrentContext	(const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLSurface draw, eglw::EGLSurface read, eglw::EGLContext context);
	~ScopedCurrentContext	(void);

private:
	const eglw::Library&	m_egl;
	eglw::EGLDisplay		m_display;
};

class UniqueImage
{
public:
							UniqueImage		(const eglw::Library& egl, eglw::EGLDisplay display, eglw::EGLImage image);
							~UniqueImage	(void);

	eglw::EGLImage			operator*		(void) const { return m_image; }
	operator				bool			(void) const { return m_image != EGL_NO_IMAGE_KHR; }

private:
	const eglw::Library&	m_egl;
	eglw::EGLDisplay		m_display;
	eglw::EGLImage			m_image;

	// Disabled
	UniqueImage				operator=		(const UniqueImage&);
							UniqueImage		(const UniqueImage&);
};

} // eglu

#endif // _EGLUUNIQUE_HPP