vl_mpeg12_decoder.h revision 8c2bfa34a0d70ab08de44e3b091b3a097abbad97 
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_decoder.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
48   unsigned chroma_width, chroma_height;
49
50   unsigned blocks_per_line;
51   unsigned num_blocks;
52   unsigned width_in_macroblocks;
53   bool expect_chunked_decode;
54
55   enum pipe_format zscan_source_format;
56
57   struct pipe_vertex_buffer quads;
58   struct pipe_vertex_buffer pos;
59
60   void *ves_ycbcr;
61   void *ves_mv;
62
63   void *sampler_ycbcr;
64
65   struct pipe_sampler_view *zscan_linear;
66   struct pipe_sampler_view *zscan_normal;
67   struct pipe_sampler_view *zscan_alternate;
68
69   struct pipe_video_buffer *idct_source;
70   struct pipe_video_buffer *mc_source;
71
72   struct vl_zscan zscan_y, zscan_c;
73   struct vl_idct idct_y, idct_c;
74   struct vl_mc mc_y, mc_c;
75
76   void *dsa;
77
78   unsigned current_buffer;
79   struct vl_mpeg12_buffer *dec_buffers[4];
80
81   struct pipe_mpeg12_picture_desc picture_desc;
82   uint8_t intra_matrix[64];
83   uint8_t non_intra_matrix[64];
84   struct pipe_sampler_view *ref_frames[VL_MAX_REF_FRAMES][VL_MAX_PLANES];
85
86   struct pipe_video_buffer *target;
87   struct pipe_surface *target_surfaces[VL_MAX_PLANES];
88};
89
90struct vl_mpeg12_buffer
91{
92   struct vl_vertex_buffer vertex_stream;
93
94   unsigned block_num;
95   unsigned num_ycbcr_blocks[3];
96
97   struct pipe_sampler_view *zscan_source;
98
99   struct vl_mpg12_bs bs;
100   struct vl_zscan_buffer zscan[VL_MAX_PLANES];
101   struct vl_idct_buffer idct[VL_MAX_PLANES];
102   struct vl_mc_buffer mc[VL_MAX_PLANES];
103
104   struct pipe_transfer *tex_transfer;
105   short *texels;
106
107   struct vl_ycbcr_block *ycbcr_stream[VL_MAX_PLANES];
108   struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
109};
110
111/**
112 * creates a shader based mpeg12 decoder
113 */
114struct pipe_video_decoder *
115vl_create_mpeg12_decoder(struct pipe_context *pipe,
116                         enum pipe_video_profile profile,
117                         enum pipe_video_entrypoint entrypoint,
118                         enum pipe_video_chroma_format chroma_format,
119                         unsigned width, unsigned height, unsigned max_references,
120                         bool expect_chunked_decode);
121
122#endif /* vl_mpeg12_decoder_h */
123