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 // TODO: Move layer specific stuff out of frame related classes.\r
  21 #include "../../stdafx.h"\r
  22 \r
  23 #include "image_transform.h"\r
  24 \r
  25 #include <common/utility/assert.h>\r
  26 \r
  27 namespace caspar { namespace core {\r
  28                 \r
  29 image_transform::image_transform() \r
  30         : opacity_(1.0)\r
  31         , brightness_(1.0)\r
  32         , contrast_(1.0)\r
  33         , saturation_(1.0)\r
  34         , is_key_(false)\r
  35 {\r
  36         std::fill(fill_translation_.begin(), fill_translation_.end(), 0.0);\r
  37         std::fill(fill_scale_.begin(), fill_scale_.end(), 1.0);\r
  38         std::fill(clip_translation_.begin(), clip_translation_.end(), 0.0);\r
  39         std::fill(clip_scale_.begin(), clip_scale_.end(), 1.0);\r
  40 }\r
  41 \r
  42 void image_transform::set_opacity(double value)\r
  43 {\r
  44         opacity_ = std::max(value, 0.0);\r
  45 }\r
  46 \r
  47 double image_transform::get_opacity() const\r
  48 {\r
  49         return opacity_;\r
  50 }\r
  51 \r
  52 void image_transform::set_brightness(double value)\r
  53 {\r
  54         brightness_ = std::max(0.0, value);\r
  55 }\r
  56 \r
  57 double image_transform::get_brightness() const\r
  58 {\r
  59         return brightness_;\r
  60 }\r
  61 \r
  62 void image_transform::set_contrast(double value)\r
  63 {\r
  64         contrast_ = std::max(0.0, value);\r
  65 }\r
  66 \r
  67 double image_transform::get_contrast() const\r
  68 {\r
  69         return contrast_;\r
  70 }\r
  71 \r
  72 void image_transform::set_saturation(double value)\r
  73 {\r
  74         saturation_ = std::max(0.0, value);\r
  75 }\r
  76 \r
  77 double image_transform::get_saturation() const\r
  78 {\r
  79         return saturation_;\r
  80 }\r
  81 \r
  82 void image_transform::set_levels(const image_transform::levels& value)\r
  83 {\r
  84         levels_ = value;\r
  85 }\r
  86 \r
  87 image_transform::levels image_transform::get_levels() const\r
  88 {\r
  89         return levels_;\r
  90 }\r
  91 \r
  92 \r
  93 void image_transform::set_fill_translation(double x, double y)\r
  94 {\r
  95         fill_translation_[0] = x;\r
  96         fill_translation_[1] = y;\r
  97 }\r
  98 \r
  99 void image_transform::set_fill_scale(double x, double y)\r
 100 {\r
 101         fill_scale_[0] = x;\r
 102         fill_scale_[1] = y;     \r
 103 }\r
 104 \r
 105 std::array<double, 2> image_transform::get_fill_translation() const\r
 106 {\r
 107         return fill_translation_;\r
 108 }\r
 109 \r
 110 std::array<double, 2> image_transform::get_fill_scale() const\r
 111 {\r
 112         return fill_scale_;\r
 113 }\r
 114 \r
 115 void image_transform::set_clip_translation(double x, double y)\r
 116 {\r
 117         clip_translation_[0] = x;\r
 118         clip_translation_[1] = y;\r
 119 }\r
 120 \r
 121 void image_transform::set_clip_scale(double x, double y)\r
 122 {\r
 123         clip_scale_[0] = x;\r
 124         clip_scale_[1] = y;     \r
 125 }\r
 126 \r
 127 std::array<double, 2> image_transform::get_clip_translation() const\r
 128 {\r
 129         return clip_translation_;\r
 130 }\r
 131 \r
 132 std::array<double, 2> image_transform::get_clip_scale() const\r
 133 {\r
 134         return clip_scale_;\r
 135 }\r
 136 \r
 137 image_transform& image_transform::operator*=(const image_transform &other)\r
 138 {\r
 139         opacity_                                *= other.opacity_;      \r
 140         brightness_                             *= other.brightness_;\r
 141         contrast_                               *= other.contrast_;\r
 142         saturation_                             *= other.saturation_;\r
 143 \r
 144         levels_.min_input               = std::max(levels_.min_input, other.levels_.min_input);\r
 145         levels_.max_input               = std::min(levels_.max_input, other.levels_.max_input);\r
 146         \r
 147         levels_.min_output              = std::max(levels_.min_output, other.levels_.min_output);\r
 148         levels_.max_output              = std::min(levels_.max_output, other.levels_.max_output);\r
 149 \r
 150         levels_.gamma                   *= other.levels_.gamma;\r
 151 \r
 152         is_key_                                 |= other.is_key_;\r
 153         fill_translation_[0]    += other.fill_translation_[0]*fill_scale_[0];\r
 154         fill_translation_[1]    += other.fill_translation_[1]*fill_scale_[1];\r
 155         fill_scale_[0]                  *= other.fill_scale_[0];\r
 156         fill_scale_[1]                  *= other.fill_scale_[1];\r
 157         clip_translation_[0]    += other.clip_translation_[0]*clip_scale_[0];\r
 158         clip_translation_[1]    += other.clip_translation_[1]*clip_scale_[1];\r
 159         clip_scale_[0]                  *= other.clip_scale_[0];\r
 160         clip_scale_[1]                  *= other.clip_scale_[1];\r
 161         return *this;\r
 162 }\r
 163 \r
 164 const image_transform image_transform::operator*(const image_transform &other) const\r
 165 {\r
 166         return image_transform(*this) *= other;\r
 167 }\r
 168 \r
 169 void image_transform::set_is_key(bool value){is_key_ = value;}\r
 170 bool image_transform::get_is_key() const{return is_key_;}\r
 171 \r
 172 image_transform tween(double time, const image_transform& source, const image_transform& dest, double duration, const tweener_t& tweener)\r
 173 {       \r
 174         auto do_tween = [](double time, double source, double dest, double duration, const tweener_t& tweener)\r
 175         {\r
 176                 return tweener(time, source, dest-source, duration);\r
 177         };\r
 178         \r
 179         image_transform result; \r
 180         result.set_is_key                       (source.get_is_key() | dest.get_is_key());\r
 181         result.set_brightness           (do_tween(time, source.get_brightness(), dest.get_brightness(), duration, tweener));\r
 182         result.set_contrast                     (do_tween(time, source.get_contrast(), dest.get_contrast(), duration, tweener));\r
 183         result.set_saturation           (do_tween(time, source.get_saturation(), dest.get_saturation(), duration, tweener));\r
 184         result.set_opacity                      (do_tween(time, source.get_opacity(), dest.get_opacity(), duration, tweener));\r
 185         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
 186         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
 187         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
 188         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
 189         \r
 190         auto s_levels = source.get_levels();\r
 191         auto d_levels = dest.get_levels();\r
 192 \r
 193         d_levels.max_input = do_tween(time, s_levels.max_input, d_levels.max_input, duration, tweener);\r
 194         d_levels.min_input = do_tween(time, s_levels.min_input, d_levels.min_input, duration, tweener);\r
 195         \r
 196         d_levels.max_output = do_tween(time, s_levels.max_output, d_levels.max_output, duration, tweener);\r
 197         d_levels.min_output = do_tween(time, s_levels.min_output, d_levels.min_output, duration, tweener);\r
 198 \r
 199         d_levels.gamma = do_tween(time, s_levels.gamma, d_levels.gamma, duration, tweener);\r
 200 \r
 201         result.set_levels(d_levels);\r
 202 \r
 203         return result;\r
 204 }\r
 205 \r
 206 bool operator<(const image_transform& lhs, const image_transform& rhs)\r
 207 {\r
 208         return memcmp(&lhs, &rhs, sizeof(image_transform)) < 0;\r
 209 }\r
 210 \r
 211 bool operator==(const image_transform& lhs, const image_transform& rhs)\r
 212 {\r
 213         return memcmp(&lhs, &rhs, sizeof(image_transform)) == 0;\r
 214 }\r
 215 \r
 216 bool operator!=(const image_transform& lhs, const image_transform& rhs)\r
 217 {\r
 218         return !(lhs == rhs);\r
 219 }\r
 220 \r
 221 }}