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_mc.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    unsigned nr_of_idct_render_targets;
  49
  50    enum pipe_format idct_source_format;
  51    enum pipe_format idct_intermediate_format;
  52    enum pipe_format mc_source_format;
  53
  54    struct pipe_vertex_buffer quads;
  55    void *ves_eb[VL_MAX_PLANES];
  56    void *ves_mv[2];
  57
  58    struct vl_idct idct_y, idct_c;
  59    struct vl_mc mc_y, mc_c;
  60
  61    void *dsa;
  62 };
  63
  64 struct vl_mpeg12_buffer
  65 {
  66    struct pipe_video_decode_buffer base;
  67
  68    struct vl_vertex_buffer vertex_stream;
  69
  70    struct pipe_video_buffer *idct_source;
  71    struct pipe_video_buffer *idct_intermediate;
  72    struct pipe_video_buffer *mc_source;
  73
  74    union
  75    {
  76       struct pipe_vertex_buffer all[2];
  77       struct {
  78          struct pipe_vertex_buffer quad, stream;
  79       } individual;
  80    } vertex_bufs;
  81
  82    struct vl_idct_buffer idct[VL_MAX_PLANES];
  83    struct vl_mc_buffer mc[VL_MAX_PLANES];
  84
  85    struct pipe_transfer *tex_transfer[VL_MAX_PLANES];
  86    short *texels[VL_MAX_PLANES];
  87 };
  88
  89 /* drivers can call this function in their pipe_video_context constructors and pass it
  90    an accelerated pipe_context along with suitable buffering modes, etc */
  91 struct pipe_video_decoder *
  92 vl_create_mpeg12_decoder(struct pipe_video_context *context,
  93                          struct pipe_context *pipe,
  94                          enum pipe_video_profile profile,
  95                          enum pipe_video_entrypoint entrypoint,
  96                          enum pipe_video_chroma_format chroma_format,
  97                          unsigned width, unsigned height);
  98
  99 #endif /* vl_mpeg12_decoder_h */