vl_mpeg12_decoder.h revision 38a315b7049946d124409b377e622994feccdcb7 
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_idct.h"
34#include "vl_mc.h"
35
36#include "vl_vertex_buffers.h"
37#include "vl_video_buffer.h"
38
39struct pipe_screen;
40struct pipe_context;
41
42struct vl_mpeg12_decoder
43{
44   struct pipe_video_decoder base;
45   struct pipe_context *pipe;
46
47   const unsigned (*empty_block_mask)[3][2][2];
48   unsigned nr_of_idct_render_targets;
49
50   enum pipe_format idct_source_format;
51   enum pipe_format idct_intermediate_format;
52   enum pipe_format mc_source_format;
53
54   struct pipe_vertex_buffer quads;
55   struct pipe_vertex_buffer pos;
56
57   void *ves_eb[VL_MAX_PLANES];
58   void *ves_mv;
59
60   struct vl_idct idct_y, idct_c;
61   struct vl_mc mc_y, mc_c;
62
63   void *dsa;
64};
65
66struct vl_mpeg12_buffer
67{
68   struct pipe_video_decode_buffer base;
69
70   struct vl_vertex_buffer vertex_stream;
71
72   struct pipe_video_buffer *idct_source;
73   struct pipe_video_buffer *idct_intermediate;
74   struct pipe_video_buffer *mc_source;
75
76   struct vl_idct_buffer idct[VL_MAX_PLANES];
77   struct vl_mc_buffer mc[VL_MAX_PLANES];
78
79   struct pipe_transfer *tex_transfer[VL_MAX_PLANES];
80   short *texels[VL_MAX_PLANES];
81};
82
83/* drivers can call this function in their pipe_video_context constructors and pass it
84   an accelerated pipe_context along with suitable buffering modes, etc */
85struct pipe_video_decoder *
86vl_create_mpeg12_decoder(struct pipe_video_context *context,
87                         struct pipe_context *pipe,
88                         enum pipe_video_profile profile,
89                         enum pipe_video_entrypoint entrypoint,
90                         enum pipe_video_chroma_format chroma_format,
91                         unsigned width, unsigned height);
92
93#endif /* vl_mpeg12_decoder_h */
94