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

     2  *

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

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

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

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

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

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

     9  *

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

    11  * in all copies or substantial portions of the Software.

    12  *

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

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

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

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

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

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

    19  *

    20  * Initial Contributors:

    21  * Nokia Corporation - initial contribution.

    22  *

    23  * Contributors:

    24  *

    25  * Description:

    26  *

    27  */

    28 

    29 #ifndef DEGL_H_

    30 #define DEGL_H_

    31 

    32 #include "common.h"

    33 

    34 #ifdef __cplusplus

    35 

    36 #include "GLES2Interface.h"

    37 

    38 #include <set>

    39 

    40 extern "C"

    41 {

    42 #endif /* __cplusplus */

    43 

    44 struct DGLContext;

    45 

    46 void* deglGetHostProcAddress(char const* proc);

    47 struct DGLContext* deglGetCurrentContext(void);

    48 int deglLockSurface(int read, int draw);

    49 int deglUnlockSurface(void);

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

    51 void* deglGetImageData(GLeglImageOES image);

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

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

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

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

    56 

    57 #ifdef __cplusplus

    58 DGLES2_EXPORT IEGLtoGLES2Interface* getGLES2Interface(void);

    59 }

    60 

    61 class EGLtoGLES2Interface : public IEGLtoGLES2Interface

    62 {

    63 public:

    64     EGLtoGLES2Interface();

    65 

    66 	void SetEGLInterface( IGLEStoEGLInterface* );

    67 	void* CreateContext( void* nativeContext );

    68 	bool ReleaseContext( void* context );

    69 	void* GetNativeContext( void* context );

    70 	fpGLProc GetGLProcAddress( const char *procname );

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

    72 	bool ReleaseTexImage( int name, int level );

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

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

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

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

    77 	bool UpdateImageSibling( EImageTarget target, void* name );

    78     void Flush();

    79     void Finish();

    80 

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

    82     static IGLEStoEGLInterface* GetEGLInterface();

    83 

    84 private:

    85     IGLEStoEGLInterface* m_egl;

    86 	std::set<DGLContext*> m_contexts;

    87 };

    88 

    89 #endif /* __cplusplus */

    90 

    91 #endif /* DEGL_H */