/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included

 * in all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description:

 *

 */

#ifndef DEGL_H_

#define DEGL_H_

#include "common.h"

#ifdef __cplusplus

#include "GLES2Interface.h"

#include <set>

extern "C"

{

#endif /* __cplusplus */

struct DGLContext;

void* deglGetHostProcAddress(char const* proc);

struct DGLContext* deglGetCurrentContext(void);

int deglLockSurface(int read, int draw);

int deglUnlockSurface(void);

void deglGetImageInfo(GLeglImageOES image, GLenum* internalformat, GLsizei* width, GLsizei* height, GLsizei* stride, GLenum* dataformat, GLenum* datatype);

void* deglGetImageData(GLeglImageOES image);

void deglRegisterImageTarget(GLeglImageOES image, GLenum target, GLuint name);

void deglUnregisterImageTarget(GLeglImageOES image, GLenum target, GLuint name);

void deglUpdateImageSiblings(GLeglImageOES image, GLenum target, GLuint name);

void deglReleaseTexImage(void* surface, int name, int level);

#ifdef __cplusplus

DGLES2_EXPORT IEGLtoGLES2Interface* getGLES2Interface(void);

}

class EGLtoGLES2Interface : public IEGLtoGLES2Interface

{

public:

    EGLtoGLES2Interface();

	void SetEGLInterface( IGLEStoEGLInterface* );

	void* CreateContext( void* nativeContext );

	bool ReleaseContext( void* context );

	void* GetNativeContext( void* context );

	fpGLProc GetGLProcAddress( const char *procname );

	int BindTexImage( void* surface, int level, bool generateMipmap, const SurfaceDescriptor* desc, void* buffer );

	bool ReleaseTexImage( int name, int level );

    EStatus GetTextureInfo( void* context, EImageTarget target, void* texture, GLint textureLevel, SurfaceDescriptor& desc );

    EStatus GetTextureData( void* context, EImageTarget target, void* texture, GLint textureLevel, void* data );

    bool CopyBuffers( void* buf, const SurfaceDescriptor* desc );

    bool UpdateBuffers( void* buf, const SurfaceDescriptor* desc );

	bool UpdateImageSibling( EImageTarget target, void* name );

    void Flush();

    void Finish();

	// Methods for local OpenGL ES -implementation. To be called only from OpenGL ES internals.

    static IGLEStoEGLInterface* GetEGLInterface();

private:

    IGLEStoEGLInterface* m_egl;

	std::set<DGLContext*> m_contexts;

};

#endif /* __cplusplus */

#endif /* DEGL_H */