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

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../stdafx.h"\r
  23 \r
  24 #include "frame_transform.h"\r
  25 \r
  26 #include <boost/range/algorithm/equal.hpp>\r
  27 #include <boost/range/algorithm/fill.hpp>\r
  28 \r
  29 namespace caspar { namespace core {\r
  30                 \r
  31 frame_transform::frame_transform() \r
  32         : volume(1.0)\r
  33         , opacity(1.0)\r
  34         , brightness(1.0)\r
  35         , contrast(1.0)\r
  36         , saturation(1.0)\r
  37         , field_mode(field_mode::progressive)\r
  38         , is_key(false)\r
  39         , is_mix(false)\r
  40 {\r
  41         boost::range::fill(fill_translation, 0.0);\r
  42         boost::range::fill(fill_scale, 1.0);\r
  43         boost::range::fill(clip_translation, 0.0);\r
  44         boost::range::fill(clip_scale, 1.0);\r
  45 }\r
  46 \r
  47 frame_transform& frame_transform::operator*=(const frame_transform &other)\r
  48 {\r
  49         volume                                  *= other.volume;\r
  50         opacity                                 *= other.opacity;       \r
  51         brightness                              *= other.brightness;\r
  52         contrast                                *= other.contrast;\r
  53         saturation                              *= other.saturation;\r
  54         fill_translation[0]             += other.fill_translation[0]*fill_scale[0];\r
  55         fill_translation[1]             += other.fill_translation[1]*fill_scale[1];\r
  56         fill_scale[0]                   *= other.fill_scale[0];\r
  57         fill_scale[1]                   *= other.fill_scale[1];\r
  58         clip_translation[0]             += other.clip_translation[0]*clip_scale[0];\r
  59         clip_translation[1]             += other.clip_translation[1]*clip_scale[1];\r
  60         clip_scale[0]                   *= other.clip_scale[0];\r
  61         clip_scale[1]                   *= other.clip_scale[1];\r
  62         levels.min_input                 = std::max(levels.min_input,  other.levels.min_input);\r
  63         levels.max_input                 = std::min(levels.max_input,  other.levels.max_input); \r
  64         levels.min_output                = std::max(levels.min_output, other.levels.min_output);\r
  65         levels.max_output                = std::min(levels.max_output, other.levels.max_output);\r
  66         levels.gamma                    *= other.levels.gamma;\r
  67         field_mode                               = static_cast<core::field_mode>(field_mode & other.field_mode);\r
  68         is_key                                  |= other.is_key;\r
  69         is_mix                                  |= other.is_mix;\r
  70         return *this;\r
  71 }\r
  72 \r
  73 frame_transform frame_transform::operator*(const frame_transform &other) const\r
  74 {\r
  75         return frame_transform(*this) *= other;\r
  76 }\r
  77 \r
  78 frame_transform frame_transform::tween(double time, const frame_transform& source, const frame_transform& dest, double duration, const tweener& tween)\r
  79 {       \r
  80         auto do_tween = [](double time, double source, double dest, double duration, const tweener& tween)\r
  81         {\r
  82                 return tween(time, source, dest-source, duration);\r
  83         };\r
  84         \r
  85         frame_transform result; \r
  86         result.volume                           = do_tween(time, source.volume,                                 dest.volume,                            duration, tween);\r
  87         result.brightness                       = do_tween(time, source.brightness,                             dest.brightness,                        duration, tween);\r
  88         result.contrast                         = do_tween(time, source.contrast,                               dest.contrast,                          duration, tween);\r
  89         result.saturation                       = do_tween(time, source.saturation,                             dest.saturation,                        duration, tween);\r
  90         result.opacity                          = do_tween(time, source.opacity,                                dest.opacity,                           duration, tween);       \r
  91         result.fill_translation[0]      = do_tween(time, source.fill_translation[0],    dest.fill_translation[0],       duration, tween), \r
  92         result.fill_translation[1]      = do_tween(time, source.fill_translation[1],    dest.fill_translation[1],       duration, tween);               \r
  93         result.fill_scale[0]            = do_tween(time, source.fill_scale[0],                  dest.fill_scale[0],                     duration, tween), \r
  94         result.fill_scale[1]            = do_tween(time, source.fill_scale[1],                  dest.fill_scale[1],                     duration, tween);       \r
  95         result.clip_translation[0]      = do_tween(time, source.clip_translation[0],    dest.clip_translation[0],       duration, tween), \r
  96         result.clip_translation[1]      = do_tween(time, source.clip_translation[1],    dest.clip_translation[1],       duration, tween);               \r
  97         result.clip_scale[0]            = do_tween(time, source.clip_scale[0],                  dest.clip_scale[0],                     duration, tween), \r
  98         result.clip_scale[1]            = do_tween(time, source.clip_scale[1],                  dest.clip_scale[1],                     duration, tween);\r
  99         result.levels.max_input         = do_tween(time, source.levels.max_input,               dest.levels.max_input,          duration, tween);\r
 100         result.levels.min_input         = do_tween(time, source.levels.min_input,               dest.levels.min_input,          duration, tween);       \r
 101         result.levels.max_output        = do_tween(time, source.levels.max_output,              dest.levels.max_output,         duration, tween);\r
 102         result.levels.min_output        = do_tween(time, source.levels.min_output,              dest.levels.min_output,         duration, tween);\r
 103         result.levels.gamma                     = do_tween(time, source.levels.gamma,                   dest.levels.gamma,                      duration, tween);\r
 104         result.field_mode                       = source.field_mode & dest.field_mode;\r
 105         result.is_key                           = source.is_key | dest.is_key;\r
 106         result.is_mix                           = source.is_mix | dest.is_mix;\r
 107         \r
 108         return result;\r
 109 }\r
 110 \r
 111 bool operator==(const frame_transform& lhs, const frame_transform& rhs)\r
 112 {\r
 113         auto eq = [](double lhs, double rhs)\r
 114         {\r
 115                 return std::abs(lhs - rhs) < 5e-8;\r
 116         };\r
 117 \r
 118         return \r
 119                 eq(lhs.volume, rhs.volume) &&\r
 120                 eq(lhs.opacity, rhs.opacity) &&\r
 121                 eq(lhs.contrast, rhs.contrast) &&\r
 122                 eq(lhs.brightness, rhs.brightness) &&\r
 123                 eq(lhs.saturation, rhs.saturation) &&\r
 124                 boost::range::equal(lhs.fill_translation, rhs.fill_translation, eq) &&\r
 125                 boost::range::equal(lhs.fill_scale, rhs.fill_scale, eq) &&\r
 126                 boost::range::equal(lhs.clip_translation, rhs.clip_translation, eq) &&\r
 127                 boost::range::equal(lhs.clip_scale, rhs.clip_scale, eq) &&\r
 128                 lhs.field_mode == rhs.field_mode &&\r
 129                 lhs.is_key == rhs.is_key &&\r
 130                 lhs.is_mix == rhs.is_mix;\r
 131 }\r
 132 \r
 133 bool operator!=(const frame_transform& lhs, const frame_transform& rhs)\r
 134 {\r
 135         return !(lhs == rhs);\r
 136 }\r
 137 \r
 138 bool operator<(const frame_transform& lhs, const frame_transform& rhs)\r
 139 {\r
 140         return memcmp(&lhs, &rhs, sizeof(frame_transform)) < 0;\r
 141 }\r
 142 \r
 143 bool operator>(const frame_transform& lhs, const frame_transform& rhs)\r
 144 {\r
 145         return memcmp(&lhs, &rhs, sizeof(frame_transform)) > 0;\r
 146 }\r
 147 \r
 148 }}