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 
43 struct pipe_screen;
44 struct pipe_context;
45 
46 struct 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 
86 struct 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  */
110 struct pipe_video_codec *
111 vl_create_mpeg12_decoder(struct pipe_context *pipe,
112                          const struct pipe_video_codec *templat);
113 
114 #endif /* vl_mpeg12_decoder_h */
115