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_idct.h"
  34 #include "vl_mpeg12_mc_renderer.h"
  35
  36 #include "vl_vertex_buffers.h"
  37 #include "vl_video_buffer.h"
  38
  39 struct pipe_screen;
  40 struct pipe_context;
  41
  42 struct 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
  49    struct pipe_vertex_buffer quads;
  50    void *ves[VL_MAX_PLANES];
  51
  52    struct vl_idct idct_y, idct_c;
  53    struct vl_mpeg12_mc_renderer mc;
  54
  55    void *rast;
  56    void *dsa;
  57    void *blend;
  58 };
  59
  60 struct vl_mpeg12_buffer
  61 {
  62    struct pipe_video_decode_buffer base;
  63
  64    struct vl_vertex_buffer vertex_stream;
  65
  66    struct pipe_video_buffer *idct_source;
  67    struct pipe_video_buffer *idct_2_mc;
  68
  69    union
  70    {
  71       struct pipe_vertex_buffer all[2];
  72       struct {
  73          struct pipe_vertex_buffer quad, stream;
  74       } individual;
  75    } vertex_bufs;
  76
  77    struct vl_idct_buffer idct[VL_MAX_PLANES];
  78    struct vl_mpeg12_mc_buffer mc[VL_MAX_PLANES];
  79 };
  80
  81 /* drivers can call this function in their pipe_video_context constructors and pass it
  82    an accelerated pipe_context along with suitable buffering modes, etc */
  83 struct pipe_video_decoder *
  84 vl_create_mpeg12_decoder(struct pipe_video_context *context,
  85                          struct pipe_context *pipe,
  86                          enum pipe_video_profile profile,
  87                          enum pipe_video_chroma_format chroma_format,
  88                          unsigned width, unsigned height);
  89
  90 #endif /* VL_MPEG12_DECODER_H */