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_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_decoder base;
  47    struct pipe_context *pipe;
  48
  49    unsigned chroma_width, chroma_height;
  50
  51    unsigned blocks_per_line;
  52    unsigned max_blocks;
  53    unsigned nr_of_idct_render_targets;
  54
  55    enum pipe_format zscan_source_format;
  56    enum pipe_format idct_source_format;
  57    enum pipe_format mc_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 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
  78 struct vl_mpeg12_buffer
  79 {
  80    struct pipe_video_decode_buffer base;
  81
  82    struct vl_vertex_buffer vertex_stream;
  83
  84    struct pipe_video_buffer *zscan_source;
  85    struct pipe_video_buffer *idct_source;
  86    struct pipe_video_buffer *mc_source;
  87
  88    struct vl_mpg12_bs bs;
  89    struct vl_zscan_buffer zscan[VL_MAX_PLANES];
  90    struct vl_idct_buffer idct[VL_MAX_PLANES];
  91    struct vl_mc_buffer mc[VL_MAX_PLANES];
  92
  93    struct pipe_transfer *tex_transfer[VL_MAX_PLANES];
  94    short *texels[VL_MAX_PLANES];
  95 };
  96
  97 /* drivers can call this function in their pipe_video_context constructors and pass it
  98    an accelerated pipe_context along with suitable buffering modes, etc */
  99 struct pipe_video_decoder *
 100 vl_create_mpeg12_decoder(struct pipe_video_context *context,
 101                          struct pipe_context *pipe,
 102                          enum pipe_video_profile profile,
 103                          enum pipe_video_entrypoint entrypoint,
 104                          enum pipe_video_chroma_format chroma_format,
 105                          unsigned width, unsigned height);
 106
 107 #endif /* vl_mpeg12_decoder_h */