src/gallium/auxiliary/vl/vl_video_buffer.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2011 Christian König.
   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_ycbcr_buffer_h
  29 #define vl_ycbcr_buffer_h
  30
  31 #include <pipe/p_context.h>
  32 #include <pipe/p_video_context.h>
  33
  34 #define VL_MAX_PLANES 3
  35
  36 /**
  37  * implementation of a planar ycbcr buffer
  38  */
  39
  40 /* planar buffer for vl data upload and manipulation */
  41 struct vl_video_buffer
  42 {
  43    struct pipe_video_buffer base;
  44    struct pipe_context      *pipe;
  45    unsigned                 num_planes;
  46    struct pipe_resource     *resources[VL_MAX_PLANES];
  47    struct pipe_sampler_view *sampler_views[VL_MAX_PLANES];
  48    struct pipe_surface      *surfaces[VL_MAX_PLANES];
  49 };
  50
  51 /**
  52  * initialize a buffer, creating its resources
  53  */
  54 struct pipe_video_buffer *
  55 vl_video_buffer_init(struct pipe_video_context *context,
  56                      struct pipe_context *pipe,
  57                      unsigned width, unsigned height, unsigned depth,
  58                      enum pipe_video_chroma_format chroma_format,
  59                      const enum pipe_format resource_formats[VL_MAX_PLANES],
  60                      unsigned usage);
  61 #endif /* vl_ycbcr_buffer_h */