vl_mpeg12_decoder.h revision 6ad846ee78d9d8ba93dcecdefbf89f2b981333ef 
1/**************************************************************************
2 *
3 * Copyright 2009 Younes Manton.
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_mpeg12_decoder_h
29#define vl_mpeg12_decoder_h
30
31#include <pipe/p_video_context.h>
32
33#include "vl_mpeg12_bitstream.h"
34#include "vl_zscan.h"
35#include "vl_idct.h"
36#include "vl_mc.h"
37
38#include "vl_vertex_buffers.h"
39#include "vl_video_buffer.h"
40
41struct pipe_screen;
42struct pipe_context;
43
44struct vl_mpeg12_decoder
45{
46   struct pipe_video_decoder base;
47   struct pipe_context *pipe;
48
49   unsigned chroma_width, chroma_height;
50
51   unsigned blocks_per_line;
52   unsigned max_blocks;
53   unsigned nr_of_idct_render_targets;
54
55   enum pipe_format zscan_source_format;
56   enum pipe_format idct_source_format;
57   enum pipe_format mc_source_format;
58
59   struct pipe_vertex_buffer quads;
60   struct pipe_vertex_buffer pos;
61
62   void *ves_ycbcr;
63   void *ves_mv;
64
65   void *sampler_ycbcr;
66
67   struct pipe_sampler_view *zscan_linear;
68   struct pipe_sampler_view *zscan_normal;
69   struct pipe_sampler_view *zscan_alternate;
70
71   struct vl_zscan zscan_y, zscan_c;
72   struct vl_idct idct_y, idct_c;
73   struct vl_mc mc_y, mc_c;
74
75   void *dsa;
76};
77
78struct vl_mpeg12_buffer
79{
80   struct pipe_video_decode_buffer base;
81
82   struct vl_vertex_buffer vertex_stream;
83
84   struct pipe_video_buffer *zscan_source;
85   struct pipe_video_buffer *idct_source;
86   struct pipe_video_buffer *mc_source;
87
88   struct vl_mpg12_bs bs;
89   struct vl_zscan_buffer zscan[VL_MAX_PLANES];
90   struct vl_idct_buffer idct[VL_MAX_PLANES];
91   struct vl_mc_buffer mc[VL_MAX_PLANES];
92
93   struct pipe_transfer *tex_transfer[VL_MAX_PLANES];
94   short *texels[VL_MAX_PLANES];
95};
96
97/* drivers can call this function in their pipe_video_context constructors and pass it
98   an accelerated pipe_context along with suitable buffering modes, etc */
99struct pipe_video_decoder *
100vl_create_mpeg12_decoder(struct pipe_video_context *context,
101                         struct pipe_context *pipe,
102                         enum pipe_video_profile profile,
103                         enum pipe_video_entrypoint entrypoint,
104                         enum pipe_video_chroma_format chroma_format,
105                         unsigned width, unsigned height);
106
107#endif /* vl_mpeg12_decoder_h */
108