/*
* va_wayland.h - Wayland API
*
* Copyright (c) 2012 Intel Corporation. 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 INTEL 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_WAYLAND_H
#define VA_WAYLAND_H
#include <va/va.h>
#include <wayland-client.h>
/**
* \file va_wayland.h
* \brief The Wayland rendering API
*
* This file contains the \ref api_wayland "Wayland rendering API".
*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* \defgroup api_wayland Wayland rendering API
*
* @{
*
* Theory of operations:
* - Create a VA display for an active Wayland display ;
* - Perform normal VA-API operations, e.g. decode to a VA surface ;
* - Get wl_buffer associated to the VA surface ;
* - Attach wl_buffer to wl_surface ;
*/
/**
* \brief Returns a VA display wrapping the specified Wayland display.
*
* This functions returns a (possibly cached) VA display from the
* specified Wayland @display.
*
* @param[in] display the native Wayland display
* @return the VA display
*/
VADisplay
vaGetDisplayWl(struct wl_display *display);
/**
* \brief Returns the Wayland buffer associated with a VA surface.
*
* This function returns a wl_buffer handle that can be used as an
* argument to wl_surface_attach(). This buffer references the
* underlying VA @surface. As such, the VA @surface and Wayland
* @out_buffer have the same size and color format. Should specific
* color conversion be needed, then VA/VPP API can fulfill this
* purpose.
*
* The @flags describe the desired picture structure. This is useful
* to expose a de-interlaced buffer. If the VA driver does not support
* any of the supplied flags, then #VA_STATUS_ERROR_FLAG_NOT_SUPPORTED
* is returned. The following flags are allowed: \c VA_FRAME_PICTURE,
* \c VA_TOP_FIELD, \c VA_BOTTOM_FIELD.
*
* @param[in] dpy the VA display
* @param[in] surface the VA surface
* @param[in] flags the deinterlacing flags
* @param[out] out_buffer a wl_buffer wrapping the VA @surface
* @return VA_STATUS_SUCCESS if successful
*/
VAStatus
vaGetSurfaceBufferWl(
VADisplay dpy,
VASurfaceID surface,
unsigned int flags,
struct wl_buffer **out_buffer
);
/**
* \brief Returns the Wayland buffer associated with a VA image.
*
* This function returns a wl_buffer handle that can be used as an
* argument to wl_surface_attach(). This buffer references the
* underlying VA @image. As such, the VA @image and Wayland
* @out_buffer have the same size and color format. Should specific
* color conversion be needed, then VA/VPP API can fulfill this
* purpose.
*
* The @flags describe the desired picture structure. See
* vaGetSurfaceBufferWl() description for more details.
*
* @param[in] dpy the VA display
* @param[in] image the VA image
* @param[in] flags the deinterlacing flags
* @param[out] out_buffer a wl_buffer wrapping the VA @image
* @return VA_STATUS_SUCCESS if successful
*/
VAStatus
vaGetImageBufferWl(
VADisplay dpy,
VAImageID image,
unsigned int flags,
struct wl_buffer **out_buffer
);
/**@}*/
#ifdef __cplusplus
}
#endif
#endif /* VA_WAYLAND_H */