/*

 * Copyright (C) 2009 Splitted-Desktop Systems. All Rights Reserved.

 *

 * 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, sub license, 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 (including the

 * next paragraph) 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 NON-INFRINGEMENT.

 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.

 */

#ifndef VA_GLX_H

#define VA_GLX_H

#include <va/va.h>

#include <GL/glx.h>

#ifdef __cplusplus

extern "C" {

#endif

/**

 * Return a suitable VADisplay for VA API

 *

 * @param[in] dpy the X11 display

 * @return a VADisplay

 */

VADisplay vaGetDisplayGLX(

    Display *dpy

);

/**

 * Create a surface used for display to OpenGL

 *

 * The application shall maintain the live GLX context itself.

 * Implementations are free to use glXGetCurrentContext() and

 * glXGetCurrentDrawable() functions for internal purposes.

 *

 * @param[in]  dpy        the VA display

 * @param[in]  target     the GL target to which the texture needs to be bound

 * @param[in]  texture    the GL texture

 * @param[out] gl_surface the VA/GLX surface

 * @return VA_STATUS_SUCCESS if successful

 */

VAStatus vaCreateSurfaceGLX(

    VADisplay dpy,

    GLenum    target,

    GLuint    texture,

    void    **gl_surface

);

/**

 * Destroy a VA/GLX surface

 *

 * The application shall maintain the live GLX context itself.

 * Implementations are free to use glXGetCurrentContext() and

 * glXGetCurrentDrawable() functions for internal purposes.

 *

 * @param[in]  dpy        the VA display

 * @param[in]  gl_surface the VA surface

 * @return VA_STATUS_SUCCESS if successful

 */

VAStatus vaDestroySurfaceGLX(

    VADisplay dpy,

    void     *gl_surface

);

/**

 * Copy a VA surface to a VA/GLX surface

 *

 * This function will not return until the copy is completed. At this

 * point, the underlying GL texture will contain the surface pixels

 * in an RGB format defined by the user.

 *

 * The application shall maintain the live GLX context itself.

 * Implementations are free to use glXGetCurrentContext() and

 * glXGetCurrentDrawable() functions for internal purposes.

 *

 * @param[in]  dpy        the VA display

 * @param[in]  gl_surface the VA/GLX destination surface

 * @param[in]  surface    the VA source surface

 * @param[in]  flags      the PutSurface flags

 * @return VA_STATUS_SUCCESS if successful

 */

VAStatus vaCopySurfaceGLX(

    VADisplay    dpy,

    void        *gl_surface,

    VASurfaceID  surface,

    unsigned int flags

);

#ifdef __cplusplus

}

#endif

#endif /* VA_GLX_H */