src/gallium/auxiliary/vl/vl_mpeg12_decoder.h

   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_codec.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
  41 struct pipe_screen;
  42 struct pipe_context;
  43
  44 struct vl_mpeg12_decoder
  45 {
  46    struct pipe_video_codec base;
  47
  48    unsigned chroma_width, chroma_height;
  49
  50    unsigned blocks_per_line;
  51    unsigned num_blocks;
  52    unsigned width_in_macroblocks;
  53
  54    enum pipe_format zscan_source_format;
  55
  56    struct pipe_vertex_buffer quads;
  57    struct pipe_vertex_buffer pos;
  58
  59    void *ves_ycbcr;
  60    void *ves_mv;
  61
  62    void *sampler_ycbcr;
  63
  64    struct pipe_sampler_view *zscan_linear;
  65    struct pipe_sampler_view *zscan_normal;
  66    struct pipe_sampler_view *zscan_alternate;
  67
  68    struct pipe_video_buffer *idct_source;
  69    struct pipe_video_buffer *mc_source;
  70
  71    struct vl_zscan zscan_y, zscan_c;
  72    struct vl_idct idct_y, idct_c;
  73    struct vl_mc mc_y, mc_c;
  74
  75    void *dsa;
  76
  77    unsigned current_buffer;
  78    struct vl_mpeg12_buffer *dec_buffers[4];
  79 };
  80
  81 struct vl_mpeg12_buffer
  82 {
  83    struct vl_vertex_buffer vertex_stream;
  84
  85    unsigned block_num;
  86    unsigned num_ycbcr_blocks[3];
  87
  88    struct pipe_sampler_view *zscan_source;
  89
  90    struct vl_mpg12_bs bs;
  91    struct vl_zscan_buffer zscan[VL_NUM_COMPONENTS];
  92    struct vl_idct_buffer idct[VL_NUM_COMPONENTS];
  93    struct vl_mc_buffer mc[VL_NUM_COMPONENTS];
  94
  95    struct pipe_transfer *tex_transfer;
  96    short *texels;
  97
  98    struct vl_ycbcr_block *ycbcr_stream[VL_NUM_COMPONENTS];
  99    struct vl_motionvector *mv_stream[VL_MAX_REF_FRAMES];
 100 };
 101
 102 /**
 103  * creates a shader based mpeg12 decoder
 104  */
 105 struct pipe_video_codec *
 106 vl_create_mpeg12_decoder(struct pipe_context *pipe,
 107                          const struct pipe_video_codec *templat);
 108
 109 #endif /* vl_mpeg12_decoder_h */