src/gallium/auxiliary/vl/vl_mpeg12_context.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_CONTEXT_H
  29 #define VL_MPEG12_CONTEXT_H
  30
  31 #include <pipe/p_video_context.h>
  32 #include "vl_idct.h"
  33 #include "vl_mpeg12_mc_renderer.h"
  34 #include "vl_compositor.h"
  35
  36 struct pipe_screen;
  37 struct pipe_context;
  38
  39 struct vl_mpeg12_context
  40 {
  41    struct pipe_video_context base;
  42    struct pipe_context *pipe;
  43    struct pipe_surface *decode_target;
  44
  45    struct pipe_vertex_buffer quads;
  46    unsigned vertex_buffer_size;
  47    void *vertex_elems_state;
  48
  49    struct vl_idct idct_y, idct_cr, idct_cb;
  50    struct vl_mpeg12_mc_renderer mc_renderer;
  51
  52    struct keymap *buffer_map;
  53    struct vl_mpeg12_buffer *cur_buffer;
  54    struct vl_compositor compositor;
  55
  56    void *rast;
  57    void *dsa;
  58    void *blend;
  59
  60    enum pipe_format decode_format;
  61 };
  62
  63 struct vl_mpeg12_buffer
  64 {
  65    struct vl_vertex_buffer vertex_stream;
  66
  67    union
  68    {
  69       struct pipe_vertex_buffer all[2];
  70       struct {
  71          struct pipe_vertex_buffer quad, stream;
  72       } individual;
  73    } vertex_bufs;
  74
  75    struct vl_idct_buffer idct_y, idct_cb, idct_cr;
  76
  77    struct vl_mpeg12_mc_buffer mc;
  78 };
  79
  80 /* drivers can call this function in their pipe_video_context constructors and pass it
  81    an accelerated pipe_context along with suitable buffering modes, etc */
  82 struct pipe_video_context *
  83 vl_create_mpeg12_context(struct pipe_context *pipe,
  84                          enum pipe_video_profile profile,
  85                          enum pipe_video_chroma_format chroma_format,
  86                          unsigned width, unsigned height,
  87                          bool pot_buffers,
  88                          enum pipe_format decode_format);
  89
  90 #endif /* VL_MPEG12_CONTEXT_H */