src/gallium/drivers/radeon/radeon_video.h

/**************************************************************************
 *
 * Copyright 2013 Advanced Micro Devices, Inc.
 * 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 THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
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 **************************************************************************/

/*
 * Authors:
 *      Christian König <christian.koenig@amd.com>
 *
 */

#ifndef RADEON_VIDEO_H
#define RADEON_VIDEO_H

#include "radeon/radeon_winsys.h"
#include "vl/vl_video_buffer.h"

#define RVID_ERR(fmt, args...) \
	fprintf(stderr, "EE %s:%d %s UVD - "fmt, __FILE__, __LINE__, __func__, ##args)

/* video buffer representation */
struct rvid_buffer
{
	unsigned		usage;
	struct r600_resource	*res;
};

/* generate an stream handle */
unsigned rvid_alloc_stream_handle(void);

/* create a buffer in the winsys */
bool rvid_create_buffer(struct pipe_screen *screen, struct rvid_buffer *buffer,
			unsigned size, unsigned usage);

/* destroy a buffer */
void rvid_destroy_buffer(struct rvid_buffer *buffer);

/* reallocate a buffer, preserving its content */
bool rvid_resize_buffer(struct pipe_screen *screen, struct radeon_winsys_cs *cs,
			struct rvid_buffer *new_buf, unsigned new_size);

/* clear the buffer with zeros */
void rvid_clear_buffer(struct pipe_context *context, struct rvid_buffer* buffer);

/* join surfaces into the same buffer with identical tiling params
   sumup their sizes and replace the backend buffers with a single bo */
void rvid_join_surfaces(struct radeon_winsys* ws,
                        struct pb_buffer** buffers[VL_NUM_COMPONENTS],
                        struct radeon_surf *surfaces[VL_NUM_COMPONENTS]);

/* returns supported codecs and other parameters */
int rvid_get_video_param(struct pipe_screen *screen,
                         enum pipe_video_profile profile,
                         enum pipe_video_entrypoint entrypoint,
                         enum pipe_video_cap param);

/* the hardware only supports NV12 */
boolean rvid_is_format_supported(struct pipe_screen *screen,
                                 enum pipe_format format,
                                 enum pipe_video_profile profile,
                                 enum pipe_video_entrypoint entrypoint);

#endif // RADEON_VIDEO_H