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 // image_transform\r
  32 \r
  33 image_transform::image_transform() \r
  34         : opacity(1.0)\r
  35         , brightness(1.0)\r
  36         , contrast(1.0)\r
  37         , saturation(1.0)\r
  38         , field_mode(field_mode::progressive)\r
  39         , is_key(false)\r
  40         , is_mix(false)\r
  41         , is_still(false)\r
  42 {\r
  43         boost::range::fill(fill_translation, 0.0);\r
  44         boost::range::fill(fill_scale, 1.0);\r
  45         boost::range::fill(clip_translation, 0.0);\r
  46         boost::range::fill(clip_scale, 1.0);\r
  47 }\r
  48 \r
  49 image_transform& image_transform::operator*=(const image_transform &other)\r
  50 {\r
  51         opacity                                 *= other.opacity;       \r
  52         brightness                              *= other.brightness;\r
  53         contrast                                *= other.contrast;\r
  54         saturation                              *= other.saturation;\r
  55         fill_translation[0]             += other.fill_translation[0]*fill_scale[0];\r
  56         fill_translation[1]             += other.fill_translation[1]*fill_scale[1];\r
  57         fill_scale[0]                   *= other.fill_scale[0];\r
  58         fill_scale[1]                   *= other.fill_scale[1];\r
  59         clip_translation[0]             += other.clip_translation[0]*clip_scale[0];\r
  60         clip_translation[1]             += other.clip_translation[1]*clip_scale[1];\r
  61         clip_scale[0]                   *= other.clip_scale[0];\r
  62         clip_scale[1]                   *= other.clip_scale[1];\r
  63         levels.min_input                 = std::max(levels.min_input,  other.levels.min_input);\r
  64         levels.max_input                 = std::min(levels.max_input,  other.levels.max_input); \r
  65         levels.min_output                = std::max(levels.min_output, other.levels.min_output);\r
  66         levels.max_output                = std::min(levels.max_output, other.levels.max_output);\r
  67         levels.gamma                    *= other.levels.gamma;\r
  68         field_mode                               = static_cast<core::field_mode>(field_mode & other.field_mode);\r
  69         is_key                                  |= other.is_key;\r
  70         is_mix                                  |= other.is_mix;\r
  71         is_still                                |= other.is_still;\r
  72         return *this;\r
  73 }\r
  74 \r
  75 image_transform image_transform::operator*(const image_transform &other) const\r
  76 {\r
  77         return image_transform(*this) *= other;\r
  78 }\r
  79 \r
  80 image_transform image_transform::tween(double time, const image_transform& source, const image_transform& dest, double duration, const tweener& tween)\r
  81 {       \r
  82         auto do_tween = [](double time, double source, double dest, double duration, const tweener& tween)\r
  83         {\r
  84                 return tween(time, source, dest-source, duration);\r
  85         };\r
  86         \r
  87         image_transform result; \r
  88         result.brightness                       = do_tween(time, source.brightness,                             dest.brightness,                        duration, tween);\r
  89         result.contrast                         = do_tween(time, source.contrast,                               dest.contrast,                          duration, tween);\r
  90         result.saturation                       = do_tween(time, source.saturation,                             dest.saturation,                        duration, tween);\r
  91         result.opacity                          = do_tween(time, source.opacity,                                dest.opacity,                           duration, tween);       \r
  92         result.fill_translation[0]      = do_tween(time, source.fill_translation[0],    dest.fill_translation[0],       duration, tween), \r
  93         result.fill_translation[1]      = do_tween(time, source.fill_translation[1],    dest.fill_translation[1],       duration, tween);               \r
  94         result.fill_scale[0]            = do_tween(time, source.fill_scale[0],                  dest.fill_scale[0],                     duration, tween), \r
  95         result.fill_scale[1]            = do_tween(time, source.fill_scale[1],                  dest.fill_scale[1],                     duration, tween);       \r
  96         result.clip_translation[0]      = do_tween(time, source.clip_translation[0],    dest.clip_translation[0],       duration, tween), \r
  97         result.clip_translation[1]      = do_tween(time, source.clip_translation[1],    dest.clip_translation[1],       duration, tween);               \r
  98         result.clip_scale[0]            = do_tween(time, source.clip_scale[0],                  dest.clip_scale[0],                     duration, tween), \r
  99         result.clip_scale[1]            = do_tween(time, source.clip_scale[1],                  dest.clip_scale[1],                     duration, tween);\r
 100         result.levels.max_input         = do_tween(time, source.levels.max_input,               dest.levels.max_input,          duration, tween);\r
 101         result.levels.min_input         = do_tween(time, source.levels.min_input,               dest.levels.min_input,          duration, tween);       \r
 102         result.levels.max_output        = do_tween(time, source.levels.max_output,              dest.levels.max_output,         duration, tween);\r
 103         result.levels.min_output        = do_tween(time, source.levels.min_output,              dest.levels.min_output,         duration, tween);\r
 104         result.levels.gamma                     = do_tween(time, source.levels.gamma,                   dest.levels.gamma,                      duration, tween);\r
 105         result.field_mode                       = source.field_mode & dest.field_mode;\r
 106         result.is_key                           = source.is_key | dest.is_key;\r
 107         result.is_mix                           = source.is_mix | dest.is_mix;\r
 108         result.is_still                         = source.is_still | dest.is_still;\r
 109         \r
 110         return result;\r
 111 }\r
 112 \r
 113 bool operator==(const image_transform& lhs, const image_transform& rhs)\r
 114 {\r
 115         auto eq = [](double lhs, double rhs)\r
 116         {\r
 117                 return std::abs(lhs - rhs) < 5e-8;\r
 118         };\r
 119 \r
 120         return \r
 121                 eq(lhs.opacity, rhs.opacity) &&\r
 122                 eq(lhs.contrast, rhs.contrast) &&\r
 123                 eq(lhs.brightness, rhs.brightness) &&\r
 124                 eq(lhs.saturation, rhs.saturation) &&\r
 125                 boost::range::equal(lhs.fill_translation, rhs.fill_translation, eq) &&\r
 126                 boost::range::equal(lhs.fill_scale, rhs.fill_scale, eq) &&\r
 127                 boost::range::equal(lhs.clip_translation, rhs.clip_translation, eq) &&\r
 128                 boost::range::equal(lhs.clip_scale, rhs.clip_scale, eq) &&\r
 129                 lhs.field_mode == rhs.field_mode &&\r
 130                 lhs.is_key == rhs.is_key &&\r
 131                 lhs.is_mix == rhs.is_mix &&\r
 132                 lhs.is_still == rhs.is_still;\r
 133 }\r
 134 \r
 135 bool operator!=(const image_transform& lhs, const image_transform& rhs)\r
 136 {\r
 137         return !(lhs == rhs);\r
 138 }\r
 139 \r
 140 // audio_transform\r
 141                 \r
 142 audio_transform::audio_transform() \r
 143         : volume(1.0)\r
 144 {\r
 145 }\r
 146 \r
 147 audio_transform& audio_transform::operator*=(const audio_transform &other)\r
 148 {\r
 149         volume                                  *= other.volume;        \r
 150         return *this;\r
 151 }\r
 152 \r
 153 audio_transform audio_transform::operator*(const audio_transform &other) const\r
 154 {\r
 155         return audio_transform(*this) *= other;\r
 156 }\r
 157 \r
 158 audio_transform audio_transform::tween(double time, const audio_transform& source, const audio_transform& dest, double duration, const tweener& tween)\r
 159 {       \r
 160         auto do_tween = [](double time, double source, double dest, double duration, const tweener& tween)\r
 161         {\r
 162                 return tween(time, source, dest-source, duration);\r
 163         };\r
 164         \r
 165         audio_transform result; \r
 166         result.volume                   = do_tween(time, source.volume,                         dest.volume,                    duration, tween);\r
 167         \r
 168         return result;\r
 169 }\r
 170 \r
 171 bool operator==(const audio_transform& lhs, const audio_transform& rhs)\r
 172 {\r
 173         auto eq = [](double lhs, double rhs)\r
 174         {\r
 175                 return std::abs(lhs - rhs) < 5e-8;\r
 176         };\r
 177 \r
 178         return eq(lhs.volume, rhs.volume);\r
 179 }\r
 180 \r
 181 bool operator!=(const audio_transform& lhs, const audio_transform& rhs)\r
 182 {\r
 183         return !(lhs == rhs);\r
 184 }\r
 185 \r
 186 // frame_transform\r
 187 frame_transform::frame_transform()\r
 188 {\r
 189 }\r
 190 \r
 191 frame_transform& frame_transform::operator*=(const frame_transform &other)\r
 192 {\r
 193         image_transform *= other.image_transform;\r
 194         audio_transform *= other.audio_transform;\r
 195         return *this;\r
 196 }\r
 197 \r
 198 frame_transform frame_transform::operator*(const frame_transform &other) const\r
 199 {\r
 200         return frame_transform(*this) *= other;\r
 201 }\r
 202 \r
 203 frame_transform frame_transform::tween(double time, const frame_transform& source, const frame_transform& dest, double duration, const tweener& tween)\r
 204 {\r
 205         frame_transform result;\r
 206         result.image_transform = image_transform::tween(time, source.image_transform, dest.image_transform, duration, tween);\r
 207         result.audio_transform = audio_transform::tween(time, source.audio_transform, dest.audio_transform, duration, tween);\r
 208         return result;\r
 209 }\r
 210 \r
 211 bool operator==(const frame_transform& lhs, const frame_transform& rhs)\r
 212 {\r
 213         return  lhs.image_transform == rhs.image_transform && \r
 214                         lhs.audio_transform == rhs.audio_transform;\r
 215 }\r
 216 \r
 217 bool operator!=(const frame_transform& lhs, const frame_transform& rhs)\r
 218 {\r
 219         return !(lhs == rhs);\r
 220 }\r
 221 \r
 222 }}