git.sesse.net Git - casparcg/blob - core/producer/frame/frame_transform.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\r
   5 *\r
   6 *    CasparCG is free software: you can redistribute it and/or modify\r
   7 *    it under the terms of the GNU General Public License as published by\r
   8 *    the Free Software Foundation, either version 3 of the License, or\r
   9 *    (at your option) any later version.\r
  10 *\r
  11 *    CasparCG is distributed in the hope that it will be useful,\r
  12 *    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 *    GNU General Public License for more details.\r
  15 \r
  16 *    You should have received a copy of the GNU General Public License\r
  17 *    along with CasparCG.  If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 */\r
  20 // TODO: Move layer specific stuff out of frame related classes.\r
  21 #include "../../stdafx.h"\r
  22 \r
  23 #include "frame_transform.h"\r
  24 \r
  25 #include <common/utility/assert.h>\r
  26 \r
  27 namespace caspar { namespace core {\r
  28                 \r
  29 frame_transform::frame_transform() \r
  30         : volume(1.0)\r
  31         , opacity(1.0)\r
  32         , brightness(1.0)\r
  33         , contrast(1.0)\r
  34         , saturation(1.0)\r
  35         , field_mode(field_mode::progressive)\r
  36         , is_key(false)\r
  37 {\r
  38         std::fill(fill_translation.begin(), fill_translation.end(), 0.0);\r
  39         std::fill(fill_scale.begin(), fill_scale.end(), 1.0);\r
  40         std::fill(clip_translation.begin(), clip_translation.end(), 0.0);\r
  41         std::fill(clip_scale.begin(), clip_scale.end(), 1.0);\r
  42 }\r
  43 \r
  44 frame_transform& frame_transform::operator*=(const frame_transform &other)\r
  45 {\r
  46         volume                                  *= other.volume;\r
  47         opacity                                 *= other.opacity;       \r
  48         brightness                              *= other.brightness;\r
  49         contrast                                *= other.contrast;\r
  50         saturation                              *= other.saturation;\r
  51         fill_translation[0]             += other.fill_translation[0]*fill_scale[0];\r
  52         fill_translation[1]             += other.fill_translation[1]*fill_scale[1];\r
  53         fill_scale[0]                   *= other.fill_scale[0];\r
  54         fill_scale[1]                   *= other.fill_scale[1];\r
  55         clip_translation[0]             += other.clip_translation[0]*clip_scale[0];\r
  56         clip_translation[1]             += other.clip_translation[1]*clip_scale[1];\r
  57         clip_scale[0]                   *= other.clip_scale[0];\r
  58         clip_scale[1]                   *= other.clip_scale[1];\r
  59         levels.min_input                 = std::max(levels.min_input,  other.levels.min_input);\r
  60         levels.max_input                 = std::min(levels.max_input,  other.levels.max_input); \r
  61         levels.min_output                = std::max(levels.min_output, other.levels.min_output);\r
  62         levels.max_output                = std::min(levels.max_output, other.levels.max_output);\r
  63         levels.gamma                    *= other.levels.gamma;\r
  64         field_mode                               = static_cast<field_mode::type>(field_mode & other.field_mode);\r
  65         is_key                                  |= other.is_key;\r
  66         return *this;\r
  67 }\r
  68 \r
  69 frame_transform frame_transform::operator*(const frame_transform &other) const\r
  70 {\r
  71         return frame_transform(*this) *= other;\r
  72 }\r
  73 \r
  74 frame_transform tween(double time, const frame_transform& source, const frame_transform& dest, double duration, const tweener_t& tweener)\r
  75 {       \r
  76         auto do_tween = [](double time, double source, double dest, double duration, const tweener_t& tweener)\r
  77         {\r
  78                 return tweener(time, source, dest-source, duration);\r
  79         };\r
  80         \r
  81         frame_transform result; \r
  82         result.volume                           = do_tween(time, source.volume,                                 dest.volume,                            duration, tweener);\r
  83         result.brightness                       = do_tween(time, source.brightness,                             dest.brightness,                        duration, tweener);\r
  84         result.contrast                         = do_tween(time, source.contrast,                               dest.contrast,                          duration, tweener);\r
  85         result.saturation                       = do_tween(time, source.saturation,                             dest.saturation,                        duration, tweener);\r
  86         result.opacity                          = do_tween(time, source.opacity,                                dest.opacity,                           duration, tweener);     \r
  87         result.fill_translation[0]      = do_tween(time, source.fill_translation[0],    dest.fill_translation[0],       duration, tweener), \r
  88         result.fill_translation[1]      = do_tween(time, source.fill_translation[1],    dest.fill_translation[1],       duration, tweener);             \r
  89         result.fill_scale[0]            = do_tween(time, source.fill_scale[0],                  dest.fill_scale[0],                     duration, tweener), \r
  90         result.fill_scale[1]            = do_tween(time, source.fill_scale[1],                  dest.fill_scale[1],                     duration, tweener);     \r
  91         result.clip_translation[0]      = do_tween(time, source.clip_translation[0],    dest.clip_translation[0],       duration, tweener), \r
  92         result.clip_translation[1]      = do_tween(time, source.clip_translation[1],    dest.clip_translation[1],       duration, tweener);             \r
  93         result.clip_scale[0]            = do_tween(time, source.clip_scale[0],                  dest.clip_scale[0],                     duration, tweener), \r
  94         result.clip_scale[1]            = do_tween(time, source.clip_scale[1],                  dest.clip_scale[1],                     duration, tweener);\r
  95         result.levels.max_input         = do_tween(time, source.levels.max_input,               dest.levels.max_input,          duration, tweener);\r
  96         result.levels.min_input         = do_tween(time, source.levels.min_input,               dest.levels.min_input,          duration, tweener);     \r
  97         result.levels.max_output        = do_tween(time, source.levels.max_output,              dest.levels.max_output,         duration, tweener);\r
  98         result.levels.min_output        = do_tween(time, source.levels.min_output,              dest.levels.min_output,         duration, tweener);\r
  99         result.levels.gamma                     = do_tween(time, source.levels.gamma,                   dest.levels.gamma,                      duration, tweener);\r
 100         result.field_mode                       = static_cast<field_mode::type>(source.field_mode & dest.field_mode);\r
 101         result.is_key                           = source.is_key | dest.is_key;\r
 102         \r
 103         return result;\r
 104 }\r
 105 \r
 106 bool operator<(const frame_transform& lhs, const frame_transform& rhs)\r
 107 {\r
 108         return memcmp(&lhs, &rhs, sizeof(frame_transform)) < 0;\r
 109 }\r
 110 \r
 111 bool operator==(const frame_transform& lhs, const frame_transform& rhs)\r
 112 {\r
 113         return memcmp(&lhs, &rhs, sizeof(frame_transform)) == 0;\r
 114 }\r
 115 \r
 116 bool operator!=(const frame_transform& lhs, const frame_transform& rhs)\r
 117 {\r
 118         return !(lhs == rhs);\r
 119 }\r
 120 \r
 121 }}