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  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_video_buffer_h
  29. #define vl_video_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_NUM_COMPONENTS];
  46.    struct pipe_sampler_view *sampler_view_planes[VL_NUM_COMPONENTS];
  47.    struct pipe_sampler_view *sampler_view_components[VL_NUM_COMPONENTS];
  48.    struct pipe_surface      *surfaces[VL_MAX_SURFACES];
  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.  * get YUV plane order
  59.  */
  60. const unsigned *
  61. vl_video_buffer_plane_order(enum pipe_format format);
  62.  
  63. /**
  64.  * get maximum size of video buffers
  65.  */
  66. unsigned
  67. vl_video_buffer_max_size(struct pipe_screen *screen);
  68.  
  69. /**
  70.  * check if video buffer format is supported for a codec/profile
  71.  * can be used as default implementation of screen->is_video_format_supported
  72.  */
  73. boolean
  74. vl_video_buffer_is_format_supported(struct pipe_screen *screen,
  75.                                     enum pipe_format format,
  76.                                     enum pipe_video_profile profile);
  77.  
  78. /*
  79.  * set the associated data for the given video buffer
  80.  */
  81. void
  82. vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
  83.                                     struct pipe_video_decoder *vdec,
  84.                                     void *associated_data,
  85.                                     void (*destroy_associated_data)(void *));
  86.  
  87. /*
  88.  * get the associated data for the given video buffer
  89.  */
  90. void *
  91. vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
  92.                                     struct pipe_video_decoder *vdec);
  93.  
  94. /**
  95.  * fill a resource template for the given plane
  96.  */
  97. void
  98. vl_video_buffer_template(struct pipe_resource *templ,
  99.                          const struct pipe_video_buffer *templat,
  100.                          enum pipe_format resource_format,
  101.                          unsigned depth, unsigned array_size,
  102.                          unsigned usage, unsigned plane);
  103.  
  104. /**
  105.  * creates a video buffer, can be used as a standard implementation for pipe->create_video_buffer
  106.  */
  107. struct pipe_video_buffer *
  108. vl_video_buffer_create(struct pipe_context *pipe,
  109.                        const struct pipe_video_buffer *templat);
  110.  
  111. /**
  112.  * extended create function, gets depth, array_size, usage and formats for each plane seperately
  113.  */
  114. struct pipe_video_buffer *
  115. vl_video_buffer_create_ex(struct pipe_context *pipe,
  116.                           const struct pipe_video_buffer *templat,
  117.                           const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
  118.                           unsigned depth, unsigned array_size, unsigned usage);
  119.  
  120. /**
  121.  * even more extended create function, provide the pipe_resource for each plane
  122.  */
  123. struct pipe_video_buffer *
  124. vl_video_buffer_create_ex2(struct pipe_context *pipe,
  125.                            const struct pipe_video_buffer *templat,
  126.                            struct pipe_resource *resources[VL_NUM_COMPONENTS]);
  127.  
  128. #endif /* vl_video_buffer_h */
  129.