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 VMWARE 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_codec.h"
32
33#include "util/list.h"
34
35#include "vl_mpeg12_bitstream.h"
36#include "vl_zscan.h"
37#include "vl_idct.h"
38#include "vl_mc.h"
39
40#include "vl_vertex_buffers.h"
41#include "vl_video_buffer.h"
42
43struct pipe_screen;
44struct pipe_context;
45
46struct vl_mpeg12_decoder
47{
48   struct pipe_video_codec base;
49   struct pipe_context *context;
50
51   unsigned chroma_width, chroma_height;
52
53   unsigned blocks_per_line;
54   unsigned num_blocks;
55   unsigned width_in_macroblocks;
56
57   enum pipe_format zscan_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 pipe_video_buffer *idct_source;
72   struct pipe_video_buffer *mc_source;
73
74   struct vl_zscan zscan_y, zscan_c;
75   struct vl_idct idct_y, idct_c;
76   struct vl_mc mc_y, mc_c;
77
78   void *dsa;
79
80   unsigned current_buffer;
81   struct vl_mpeg12_buffer *dec_buffers[4];
82
83   struct list_head buffer_privates;
84};
85
86struct vl_mpeg12_buffer
87{
88   struct vl_vertex_buffer vertex_stream;
89
90   unsigned block_num;
91   unsigned num_ycbcr_blocks[3];
92
93   struct pipe_sampler_view *zscan_source;
94
95   struct vl_mpg12_bs bs;
96   struct vl_zscan_buffer zscan[VL_NUM_COMPONENTS];
97   struct vl_idct_buffer idct[VL_NUM_COMPONENTS];
98   struct vl_mc_buffer mc[VL_NUM_COMPONENTS];
99
100   struct pipe_transfer *tex_transfer;
101   short *texels;
102
103   struct vl_ycbcr_block *ycbcr_stream[VL_NUM_COMPONENTS];
104   struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
105};
106
107/**
108 * creates a shader based mpeg12 decoder
109 */
110struct pipe_video_codec *
111vl_create_mpeg12_decoder(struct pipe_context *pipe,
112                         const struct pipe_video_codec *templat);
113
114#endif /* vl_mpeg12_decoder_h */
115