vl_mpeg12_decoder.h revision fcf765620d803b376582afb618b1f643242b641b 
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_mpeg12_mc_renderer.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   struct pipe_vertex_buffer quads;
51   void *ves[VL_MAX_PLANES];
52
53   struct vl_idct idct_y, idct_c;
54   struct vl_mpeg12_mc_renderer mc;
55
56   void *rast;
57   void *dsa;
58   void *blend;
59};
60
61struct vl_mpeg12_buffer
62{
63   struct pipe_video_decode_buffer base;
64
65   struct vl_vertex_buffer vertex_stream;
66
67   struct pipe_video_buffer *idct_source;
68   struct pipe_video_buffer *idct_intermediate;
69   struct pipe_video_buffer *mc_source;
70
71   union
72   {
73      struct pipe_vertex_buffer all[2];
74      struct {
75         struct pipe_vertex_buffer quad, stream;
76      } individual;
77   } vertex_bufs;
78
79   struct vl_idct_buffer idct[VL_MAX_PLANES];
80   struct vl_mpeg12_mc_buffer mc[VL_MAX_PLANES];
81
82   struct pipe_transfer *tex_transfer[VL_MAX_PLANES];
83   short *texels[VL_MAX_PLANES];
84};
85
86/* drivers can call this function in their pipe_video_context constructors and pass it
87   an accelerated pipe_context along with suitable buffering modes, etc */
88struct pipe_video_decoder *
89vl_create_mpeg12_decoder(struct pipe_video_context *context,
90                         struct pipe_context *pipe,
91                         enum pipe_video_profile profile,
92                         enum pipe_video_entrypoint entrypoint,
93                         enum pipe_video_chroma_format chroma_format,
94                         unsigned width, unsigned height);
95
96#endif /* VL_MPEG12_DECODER_H */
97