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_decoder.h>
  33
  34 #include "vl_defines.h"
  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    unsigned                 num_planes;
  45    struct pipe_resource     *resources[VL_MAX_PLANES];
  46    struct pipe_sampler_view *sampler_view_planes[VL_MAX_PLANES];
  47    struct pipe_sampler_view *sampler_view_components[VL_MAX_PLANES];
  48    struct pipe_surface      *surfaces[VL_MAX_PLANES];
  49 };
  50
  51 /**
  52  * get subformats for each plane
  53  */
  54 const enum pipe_format *
  55 vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format);
  56
  57 /**
  58  * check if video buffer format is supported for a codec/profile
  59  * can be used as default implementation of screen->is_video_format_supported
  60  */
  61 boolean
  62 vl_video_buffer_is_format_supported(struct pipe_screen *screen,
  63                                     enum pipe_format format,
  64                                     enum pipe_video_profile profile);
  65
  66 /**
  67  * creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer
  68  */
  69 struct pipe_video_buffer *
  70 vl_video_buffer_create(struct pipe_context *pipe,
  71                        enum pipe_format buffer_format,
  72                        enum pipe_video_chroma_format chroma_format,
  73                        unsigned width, unsigned height);
  74
  75 /**
  76  * extended create function, gets depth, usage and formats for each plane seperately
  77  */
  78 struct pipe_video_buffer *
  79 vl_video_buffer_create_ex(struct pipe_context *pipe,
  80                           unsigned width, unsigned height, unsigned depth,
  81                           enum pipe_video_chroma_format chroma_format,
  82                           const enum pipe_format resource_formats[VL_MAX_PLANES],
  83                           unsigned usage);
  84
  85 #endif /* vl_ycbcr_buffer_h */