vl_video_buffer.h revision 7eca76952b6726be9459375dde7478a01789577e 
1/**************************************************************************
2 *
3 * Copyright 2011 Christian König.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#ifndef vl_ycbcr_buffer_h
29#define vl_ycbcr_buffer_h
30
31#include <pipe/p_context.h>
32#include <pipe/p_video_context.h>
33
34#include "vl_defines.h"
35
36/**
37 * implementation of a planar ycbcr buffer
38 */
39
40/* planar buffer for vl data upload and manipulation */
41struct vl_video_buffer
42{
43   struct pipe_video_buffer base;
44   struct pipe_context      *pipe;
45   unsigned                 num_planes;
46   struct pipe_resource     *resources[VL_MAX_PLANES];
47   struct pipe_sampler_view *sampler_view_planes[VL_MAX_PLANES];
48   struct pipe_sampler_view *sampler_view_components[VL_MAX_PLANES];
49   struct pipe_surface      *surfaces[VL_MAX_PLANES];
50};
51
52/**
53 * get subformats for each plane
54 */
55const enum pipe_format *
56vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format);
57
58/**
59 * check if video buffer format is supported for a codec/profile
60 * can be used as default implementation of screen->is_video_format_supported
61 */
62boolean
63vl_video_buffer_is_format_supported(struct pipe_screen *screen,
64                                    enum pipe_format format,
65                                    enum pipe_video_profile profile);
66
67/**
68 * initialize a buffer, creating its resources
69 */
70struct pipe_video_buffer *
71vl_video_buffer_init(struct pipe_video_context *context,
72                     struct pipe_context *pipe,
73                     unsigned width, unsigned height, unsigned depth,
74                     enum pipe_video_chroma_format chroma_format,
75                     const enum pipe_format resource_formats[VL_MAX_PLANES],
76                     unsigned usage);
77#endif /* vl_ycbcr_buffer_h */
78