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_context.h>
  32
  33 #include "vl_zscan.h"
  34 #include "vl_idct.h"
  35 #include "vl_mc.h"
  36
  37 #include "vl_vertex_buffers.h"
  38 #include "vl_video_buffer.h"
  39
  40 struct pipe_screen;
  41 struct pipe_context;
  42
  43 struct vl_mpeg12_decoder
  44 {
  45    struct pipe_video_decoder base;
  46    struct pipe_context *pipe;
  47
  48    unsigned chroma_width, chroma_height;
  49
  50    unsigned blocks_per_line;
  51    unsigned max_blocks;
  52
  53    const unsigned (*empty_block_mask)[3][2][2];
  54    unsigned nr_of_idct_render_targets;
  55
  56    enum pipe_format zscan_source_format;
  57    enum pipe_format idct_source_format;
  58    enum pipe_format idct_intermediate_format;
  59    enum pipe_format mc_source_format;
  60
  61    struct pipe_vertex_buffer quads;
  62    struct pipe_vertex_buffer pos;
  63
  64    void *ves_ycbcr;
  65    void *ves_mv;
  66
  67    struct vl_zscan zscan_y, zscan_c;
  68    struct vl_idct idct_y, idct_c;
  69    struct vl_mc mc_y, mc_c;
  70
  71    void *dsa;
  72 };
  73
  74 struct vl_mpeg12_buffer
  75 {
  76    struct pipe_video_decode_buffer base;
  77
  78    struct vl_vertex_buffer vertex_stream;
  79
  80    struct pipe_video_buffer *zscan_source;
  81    struct pipe_video_buffer *idct_source;
  82    struct pipe_video_buffer *idct_intermediate;
  83    struct pipe_video_buffer *mc_source;
  84
  85    struct vl_zscan_buffer zscan[VL_MAX_PLANES];
  86    struct vl_idct_buffer idct[VL_MAX_PLANES];
  87    struct vl_mc_buffer mc[VL_MAX_PLANES];
  88
  89    struct pipe_transfer *tex_transfer[VL_MAX_PLANES];
  90    short *texels[VL_MAX_PLANES];
  91 };
  92
  93 /* drivers can call this function in their pipe_video_context constructors and pass it
  94    an accelerated pipe_context along with suitable buffering modes, etc */
  95 struct pipe_video_decoder *
  96 vl_create_mpeg12_decoder(struct pipe_video_context *context,
  97                          struct pipe_context *pipe,
  98                          enum pipe_video_profile profile,
  99                          enum pipe_video_entrypoint entrypoint,
 100                          enum pipe_video_chroma_format chroma_format,
 101                          unsigned width, unsigned height);
 102
 103 #endif /* vl_mpeg12_decoder_h */