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  1. /*
  2.  * Copyright © 2015 Intel Corporation
  3.  *
  4.  * Permission is hereby granted, free of charge, to any person obtaining a
  5.  * copy of this software and associated documentation files (the
  6.  * "Software"), to deal in the Software without restriction, including
  7.  * without limitation the rights to use, copy, modify, merge, publish,
  8.  * distribute, sub license, and/or sell copies of the Software, and to
  9.  * permit persons to whom the Software is furnished to do so, subject to
  10.  * the following conditions:
  11.  *
  12.  * The above copyright notice and this permission notice (including the
  13.  * next paragraph) shall be included in all copies or substantial portions
  14.  * of the Software.
  15.  *
  16.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17.  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  19.  * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
  20.  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  21.  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  22.  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23.  */
  24.  
  25. #include "i965_yuv_coefs.h"
  26.  
  27. static const float yuv_to_rgb_bt601[] = {
  28.     1.164,              0,      1.596,          -0.06275,
  29.     1.164,              -0.392, -0.813,         -0.50196,
  30.     1.164,              2.017,  0,              -0.50196,
  31. };
  32.  
  33. static const float yuv_to_rgb_bt709[] = {
  34.     1.164,              0,      1.793,          -0.06275,
  35.     1.164,              -0.213, -0.533,         -0.50196,
  36.     1.164,              2.112,  0,              -0.50196,
  37. };
  38.  
  39. static const float yuv_to_rgb_smpte_240[] = {
  40.     1.164,              0,      1.794,          -0.06275,
  41.     1.164,              -0.258, -0.5425,        -0.50196,
  42.     1.164,              2.078,  0,              -0.50196,
  43. };
  44.  
  45. VAProcColorStandardType i915_filter_to_color_standard (unsigned int filter) {
  46.     switch (filter & VA_SRC_COLOR_MASK) {
  47.     case VA_SRC_BT601:
  48.         return VAProcColorStandardBT601;
  49.     case VA_SRC_BT709:
  50.         return VAProcColorStandardBT709;
  51.     case VA_SRC_SMPTE_240:
  52.         return VAProcColorStandardSMPTE240M;
  53.     default:
  54.         return VAProcColorStandardBT601;
  55.     }
  56. }
  57.  
  58. const float *i915_color_standard_to_coefs (VAProcColorStandardType standard, size_t *length) {
  59.     switch (standard) {
  60.     case VAProcColorStandardBT601:
  61.         *length = sizeof(yuv_to_rgb_bt601);
  62.         return yuv_to_rgb_bt601;
  63.     case VAProcColorStandardBT709:
  64.         *length = sizeof(yuv_to_rgb_bt709);
  65.         return yuv_to_rgb_bt709;
  66.     case VAProcColorStandardSMPTE240M:
  67.         *length = sizeof(yuv_to_rgb_smpte_240);
  68.         return yuv_to_rgb_smpte_240;
  69.     default:
  70.         *length = sizeof(yuv_to_rgb_bt601);
  71.         return yuv_to_rgb_bt601;
  72.     }
  73. }
  74.