git.sesse.net Git - casparcg/blob - core/producer/frame/image_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 #include "../../stdafx.h"\r
  21 \r
  22 #include "image_transform.h"\r
  23 \r
  24 #include <common/utility/assert.h>\r
  25 \r
  26 #include <boost/algorithm/string.hpp>\r
  27 \r
  28 namespace caspar { namespace core {\r
  29                 \r
  30 image_transform::image_transform() \r
  31         : opacity_(1.0)\r
  32         , gain_(1.0)\r
  33         , brightness_(1.0)\r
  34         , contrast_(1.0)\r
  35         , saturation_(1.0)\r
  36         , is_key_(false)\r
  37         , blend_mode_(image_transform::blend_mode::normal)\r
  38 {\r
  39         std::fill(fill_translation_.begin(), fill_translation_.end(), 0.0);\r
  40         std::fill(fill_scale_.begin(), fill_scale_.end(), 1.0);\r
  41         std::fill(clip_translation_.begin(), clip_translation_.end(), 0.0);\r
  42         std::fill(clip_scale_.begin(), clip_scale_.end(), 1.0);\r
  43 }\r
  44 \r
  45 void image_transform::set_opacity(double value)\r
  46 {\r
  47         opacity_ = std::max(value, 0.0);\r
  48 }\r
  49 \r
  50 double image_transform::get_opacity() const\r
  51 {\r
  52         return opacity_;\r
  53 }\r
  54 \r
  55 void image_transform::set_gain(double value)\r
  56 {\r
  57         gain_ = std::max(0.0, value);\r
  58 }\r
  59 \r
  60 double image_transform::get_gain() const\r
  61 {\r
  62         return gain_;\r
  63 }\r
  64 \r
  65 void image_transform::set_brightness(double value)\r
  66 {\r
  67         brightness_ = std::max(0.0, value);\r
  68 }\r
  69 \r
  70 double image_transform::get_brightness() const\r
  71 {\r
  72         return brightness_;\r
  73 }\r
  74 \r
  75 void image_transform::set_contrast(double value)\r
  76 {\r
  77         contrast_ = std::max(0.0, value);\r
  78 }\r
  79 \r
  80 double image_transform::get_contrast() const\r
  81 {\r
  82         return contrast_;\r
  83 }\r
  84 \r
  85 void image_transform::set_saturation(double value)\r
  86 {\r
  87         saturation_ = std::max(0.0, value);\r
  88 }\r
  89 \r
  90 double image_transform::get_saturation() const\r
  91 {\r
  92         return saturation_;\r
  93 }\r
  94 \r
  95 void image_transform::set_levels(const image_transform::levels& value)\r
  96 {\r
  97         levels_ = value;\r
  98 }\r
  99 \r
 100 image_transform::levels image_transform::get_levels() const\r
 101 {\r
 102         return levels_;\r
 103 }\r
 104 \r
 105 \r
 106 void image_transform::set_fill_translation(double x, double y)\r
 107 {\r
 108         fill_translation_[0] = x;\r
 109         fill_translation_[1] = y;\r
 110 }\r
 111 \r
 112 void image_transform::set_fill_scale(double x, double y)\r
 113 {\r
 114         fill_scale_[0] = x;\r
 115         fill_scale_[1] = y;     \r
 116 }\r
 117 \r
 118 std::array<double, 2> image_transform::get_fill_translation() const\r
 119 {\r
 120         return fill_translation_;\r
 121 }\r
 122 \r
 123 std::array<double, 2> image_transform::get_fill_scale() const\r
 124 {\r
 125         return fill_scale_;\r
 126 }\r
 127 \r
 128 void image_transform::set_clip_translation(double x, double y)\r
 129 {\r
 130         clip_translation_[0] = x;\r
 131         clip_translation_[1] = y;\r
 132 }\r
 133 \r
 134 void image_transform::set_clip_scale(double x, double y)\r
 135 {\r
 136         clip_scale_[0] = x;\r
 137         clip_scale_[1] = y;     \r
 138 }\r
 139 \r
 140 std::array<double, 2> image_transform::get_clip_translation() const\r
 141 {\r
 142         return clip_translation_;\r
 143 }\r
 144 \r
 145 std::array<double, 2> image_transform::get_clip_scale() const\r
 146 {\r
 147         return clip_scale_;\r
 148 }\r
 149 \r
 150 void image_transform::set_blend_mode(image_transform::blend_mode::type value)\r
 151 {\r
 152         blend_mode_ = value;\r
 153 }\r
 154 \r
 155 image_transform::blend_mode::type image_transform::get_blend_mode() const\r
 156 {\r
 157         return blend_mode_;\r
 158 }\r
 159 \r
 160 image_transform& image_transform::operator*=(const image_transform &other)\r
 161 {\r
 162         opacity_                                *= other.opacity_;      \r
 163         blend_mode_                              = std::max(blend_mode_, other.blend_mode_);\r
 164         gain_                                   *= other.gain_;\r
 165         brightness_                             *= other.brightness_;\r
 166         contrast_                               *= other.contrast_;\r
 167         saturation_                             *= other.saturation_;\r
 168 \r
 169         levels_.min_input               = std::max(levels_.min_input, other.levels_.min_input);\r
 170         levels_.max_input               = std::min(levels_.max_input, other.levels_.max_input);\r
 171         \r
 172         levels_.min_output              = std::max(levels_.min_output, other.levels_.min_output);\r
 173         levels_.max_output              = std::min(levels_.max_output, other.levels_.max_output);\r
 174 \r
 175         levels_.gamma                   *= other.levels_.gamma;\r
 176 \r
 177         is_key_                                 |= other.is_key_;\r
 178         fill_translation_[0]    += other.fill_translation_[0]*fill_scale_[0];\r
 179         fill_translation_[1]    += other.fill_translation_[1]*fill_scale_[1];\r
 180         fill_scale_[0]                  *= other.fill_scale_[0];\r
 181         fill_scale_[1]                  *= other.fill_scale_[1];\r
 182         clip_translation_[0]    += other.clip_translation_[0]*clip_scale_[0];\r
 183         clip_translation_[1]    += other.clip_translation_[1]*clip_scale_[1];\r
 184         clip_scale_[0]                  *= other.clip_scale_[0];\r
 185         clip_scale_[1]                  *= other.clip_scale_[1];\r
 186         return *this;\r
 187 }\r
 188 \r
 189 const image_transform image_transform::operator*(const image_transform &other) const\r
 190 {\r
 191         return image_transform(*this) *= other;\r
 192 }\r
 193 \r
 194 void image_transform::set_is_key(bool value){is_key_ = value;}\r
 195 bool image_transform::get_is_key() const{return is_key_;}\r
 196 \r
 197 image_transform tween(double time, const image_transform& source, const image_transform& dest, double duration, const tweener_t& tweener)\r
 198 {       \r
 199         auto do_tween = [](double time, double source, double dest, double duration, const tweener_t& tweener)\r
 200         {\r
 201                 return tweener(time, source, dest-source, duration);\r
 202         };\r
 203         \r
 204         image_transform result; \r
 205         result.set_blend_mode           (std::max(source.get_blend_mode(), dest.get_blend_mode()));\r
 206         result.set_is_key                       (source.get_is_key() | dest.get_is_key());\r
 207         result.set_gain                         (do_tween(time, source.get_gain(), dest.get_gain(), duration, tweener));\r
 208         result.set_brightness           (do_tween(time, source.get_brightness(), dest.get_brightness(), duration, tweener));\r
 209         result.set_contrast                     (do_tween(time, source.get_contrast(), dest.get_contrast(), duration, tweener));\r
 210         result.set_saturation           (do_tween(time, source.get_saturation(), dest.get_saturation(), duration, tweener));\r
 211         result.set_opacity                      (do_tween(time, source.get_opacity(), dest.get_opacity(), duration, tweener));\r
 212         result.set_fill_translation     (do_tween(time, source.get_fill_translation()[0], dest.get_fill_translation()[0], duration, tweener), do_tween(time, source.get_fill_translation()[1], dest.get_fill_translation()[1], duration, tweener));\r
 213         result.set_fill_scale           (do_tween(time, source.get_fill_scale()[0], dest.get_fill_scale()[0], duration, tweener), do_tween(time, source.get_fill_scale()[1], dest.get_fill_scale()[1], duration, tweener));\r
 214         result.set_clip_translation     (do_tween(time, source.get_clip_translation()[0], dest.get_clip_translation()[0], duration, tweener), do_tween(time, source.get_clip_translation()[1], dest.get_clip_translation()[1], duration, tweener));\r
 215         result.set_clip_scale           (do_tween(time, source.get_clip_scale()[0], dest.get_clip_scale()[0], duration, tweener), do_tween(time, source.get_clip_scale()[1], dest.get_clip_scale()[1], duration, tweener));\r
 216         \r
 217         auto s_levels = source.get_levels();\r
 218         auto d_levels = dest.get_levels();\r
 219 \r
 220         d_levels.max_input = do_tween(time, s_levels.max_input, d_levels.max_input, duration, tweener);\r
 221         d_levels.min_input = do_tween(time, s_levels.min_input, d_levels.min_input, duration, tweener);\r
 222         \r
 223         d_levels.max_output = do_tween(time, s_levels.max_output, d_levels.max_output, duration, tweener);\r
 224         d_levels.min_output = do_tween(time, s_levels.min_output, d_levels.min_output, duration, tweener);\r
 225 \r
 226         d_levels.gamma = do_tween(time, s_levels.gamma, d_levels.gamma, duration, tweener);\r
 227 \r
 228         result.set_levels(d_levels);\r
 229 \r
 230         return result;\r
 231 }\r
 232 \r
 233 image_transform::blend_mode::type get_blend_mode(const std::wstring& str)\r
 234 {\r
 235         if(boost::iequals(str, L"normal"))\r
 236                 return image_transform::blend_mode::normal;\r
 237         else if(boost::iequals(str, L"lighten"))\r
 238                 return image_transform::blend_mode::lighten;\r
 239         else if(boost::iequals(str, L"darken"))\r
 240                 return image_transform::blend_mode::darken;\r
 241         else if(boost::iequals(str, L"multiply"))\r
 242                 return image_transform::blend_mode::multiply;\r
 243         else if(boost::iequals(str, L"average"))\r
 244                 return image_transform::blend_mode::average;\r
 245         else if(boost::iequals(str, L"add"))\r
 246                 return image_transform::blend_mode::add;\r
 247         else if(boost::iequals(str, L"subtract"))\r
 248                 return image_transform::blend_mode::subtract;\r
 249         else if(boost::iequals(str, L"difference"))\r
 250                 return image_transform::blend_mode::difference;\r
 251         else if(boost::iequals(str, L"negation"))\r
 252                 return image_transform::blend_mode::negation;\r
 253         else if(boost::iequals(str, L"exclusion"))\r
 254                 return image_transform::blend_mode::exclusion;\r
 255         else if(boost::iequals(str, L"screen"))\r
 256                 return image_transform::blend_mode::screen;\r
 257         else if(boost::iequals(str, L"overlay"))\r
 258                 return image_transform::blend_mode::overlay;\r
 259         else if(boost::iequals(str, L"soft_light"))\r
 260                 return image_transform::blend_mode::soft_light;\r
 261         else if(boost::iequals(str, L"hard_light"))\r
 262                 return image_transform::blend_mode::hard_light;\r
 263         else if(boost::iequals(str, L"color_dodge"))\r
 264                 return image_transform::blend_mode::color_dodge;\r
 265         else if(boost::iequals(str, L"color_burn"))\r
 266                 return image_transform::blend_mode::color_burn;\r
 267         else if(boost::iequals(str, L"linear_dodge"))\r
 268                 return image_transform::blend_mode::linear_dodge;\r
 269         else if(boost::iequals(str, L"linear_burn"))\r
 270                 return image_transform::blend_mode::linear_burn;\r
 271         else if(boost::iequals(str, L"linear_light"))\r
 272                 return image_transform::blend_mode::linear_light;\r
 273         else if(boost::iequals(str, L"vivid_light"))\r
 274                 return image_transform::blend_mode::vivid_light;\r
 275         else if(boost::iequals(str, L"pin_light"))\r
 276                 return image_transform::blend_mode::pin_light;\r
 277         else if(boost::iequals(str, L"hard_mix"))\r
 278                 return image_transform::blend_mode::hard_mix;\r
 279         else if(boost::iequals(str, L"reflect"))\r
 280                 return image_transform::blend_mode::reflect;\r
 281         else if(boost::iequals(str, L"glow"))\r
 282                 return image_transform::blend_mode::glow;\r
 283         else if(boost::iequals(str, L"phoenix"))\r
 284                 return image_transform::blend_mode::phoenix;\r
 285         else if(boost::iequals(str, L"contrast"))\r
 286                 return image_transform::blend_mode::contrast;\r
 287         else if(boost::iequals(str, L"saturation"))\r
 288                 return image_transform::blend_mode::saturation;\r
 289         else if(boost::iequals(str, L"color"))\r
 290                 return image_transform::blend_mode::color;\r
 291         else if(boost::iequals(str, L"luminosity"))\r
 292                 return image_transform::blend_mode::luminosity;\r
 293                 \r
 294         return image_transform::blend_mode::normal;\r
 295 }\r
 296 \r
 297 bool operator<(const image_transform& lhs, const image_transform& rhs)\r
 298 {\r
 299         return memcmp(&lhs, &rhs, sizeof(image_transform)) < 0;\r
 300 }\r
 301 \r
 302 bool operator==(const image_transform& lhs, const image_transform& rhs)\r
 303 {\r
 304         return memcmp(&lhs, &rhs, sizeof(image_transform)) == 0;\r
 305 }\r
 306 \r
 307 bool operator!=(const image_transform& lhs, const image_transform& rhs)\r
 308 {\r
 309         return !(lhs == rhs);\r
 310 }\r
 311 \r
 312 }}