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 #include "vl_video_buffer.h"
  36 #include "vl_vertex_buffers.h"
  37
  38 struct pipe_screen;
  39 struct pipe_context;
  40
  41 struct vl_mpeg12_context
  42 {
  43    struct pipe_video_context base;
  44    struct pipe_context *pipe;
  45    bool pot_buffers;
  46    unsigned buffer_width, buffer_height;
  47
  48    const unsigned (*empty_block_mask)[3][2][2];
  49
  50    struct pipe_vertex_buffer quads;
  51    void *ves[VL_MAX_PLANES];
  52
  53    struct vl_idct idct_y, idct_c;
  54    struct vl_mpeg12_mc_renderer mc;
  55
  56    void *rast;
  57    void *dsa;
  58    void *blend;
  59 };
  60
  61 struct vl_mpeg12_buffer
  62 {
  63    struct pipe_video_buffer base;
  64
  65    struct vl_video_buffer idct_source;
  66    struct vl_video_buffer idct_2_mc;
  67    struct vl_video_buffer render_result;
  68
  69    struct vl_vertex_buffer vertex_stream;
  70
  71    union
  72    {
  73       struct pipe_vertex_buffer all[2];
  74       struct {
  75          struct pipe_vertex_buffer quad, stream;
  76       } individual;
  77    } vertex_bufs;
  78
  79    struct vl_idct_buffer idct[VL_MAX_PLANES];
  80    struct vl_mpeg12_mc_buffer mc[VL_MAX_PLANES];
  81 };
  82
  83 /* drivers can call this function in their pipe_video_context constructors and pass it
  84    an accelerated pipe_context along with suitable buffering modes, etc */
  85 struct pipe_video_context *
  86 vl_create_mpeg12_context(struct pipe_context *pipe,
  87                          enum pipe_video_profile profile,
  88                          enum pipe_video_chroma_format chroma_format,
  89                          unsigned width, unsigned height,
  90                          bool pot_buffers);
  91
  92 #endif /* VL_MPEG12_CONTEXT_H */