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         , field_mode_(field_mode::progressive)\r
  36 {\r
  37         std::fill(fill_translation_.begin(), fill_translation_.end(), 0.0);\r
  38         std::fill(fill_scale_.begin(), fill_scale_.end(), 1.0);\r
  39         std::fill(clip_translation_.begin(), clip_translation_.end(), 0.0);\r
  40         std::fill(clip_scale_.begin(), clip_scale_.end(), 1.0);\r
  41 }\r
  42 \r
  43 void image_transform::set_opacity(double value)\r
  44 {\r
  45         opacity_ = std::max(value, 0.0);\r
  46 }\r
  47 \r
  48 double image_transform::get_opacity() const\r
  49 {\r
  50         return opacity_;\r
  51 }\r
  52 \r
  53 void image_transform::set_brightness(double value)\r
  54 {\r
  55         brightness_ = std::max(0.0, value);\r
  56 }\r
  57 \r
  58 double image_transform::get_brightness() const\r
  59 {\r
  60         return brightness_;\r
  61 }\r
  62 \r
  63 void image_transform::set_contrast(double value)\r
  64 {\r
  65         contrast_ = std::max(0.0, value);\r
  66 }\r
  67 \r
  68 double image_transform::get_contrast() const\r
  69 {\r
  70         return contrast_;\r
  71 }\r
  72 \r
  73 void image_transform::set_saturation(double value)\r
  74 {\r
  75         saturation_ = std::max(0.0, value);\r
  76 }\r
  77 \r
  78 double image_transform::get_saturation() const\r
  79 {\r
  80         return saturation_;\r
  81 }\r
  82 \r
  83 void image_transform::set_levels(const image_transform::levels& value)\r
  84 {\r
  85         levels_ = value;\r
  86 }\r
  87 \r
  88 image_transform::levels image_transform::get_levels() const\r
  89 {\r
  90         return levels_;\r
  91 }\r
  92 \r
  93 \r
  94 void image_transform::set_fill_translation(double x, double y)\r
  95 {\r
  96         fill_translation_[0] = x;\r
  97         fill_translation_[1] = y;\r
  98 }\r
  99 \r
 100 void image_transform::set_fill_scale(double x, double y)\r
 101 {\r
 102         fill_scale_[0] = x;\r
 103         fill_scale_[1] = y;     \r
 104 }\r
 105 \r
 106 std::array<double, 2> image_transform::get_fill_translation() const\r
 107 {\r
 108         return fill_translation_;\r
 109 }\r
 110 \r
 111 std::array<double, 2> image_transform::get_fill_scale() const\r
 112 {\r
 113         return fill_scale_;\r
 114 }\r
 115 \r
 116 void image_transform::set_clip_translation(double x, double y)\r
 117 {\r
 118         clip_translation_[0] = x;\r
 119         clip_translation_[1] = y;\r
 120 }\r
 121 \r
 122 void image_transform::set_clip_scale(double x, double y)\r
 123 {\r
 124         clip_scale_[0] = x;\r
 125         clip_scale_[1] = y;     \r
 126 }\r
 127 \r
 128 std::array<double, 2> image_transform::get_clip_translation() const\r
 129 {\r
 130         return clip_translation_;\r
 131 }\r
 132 \r
 133 std::array<double, 2> image_transform::get_clip_scale() const\r
 134 {\r
 135         return clip_scale_;\r
 136 }\r
 137 \r
 138 void image_transform::set_field_mode(field_mode::type field_mode)\r
 139 {\r
 140         field_mode_ = field_mode;\r
 141 }\r
 142 \r
 143 field_mode::type image_transform::get_field_mode() const\r
 144 {\r
 145         return field_mode_;\r
 146 }\r
 147 \r
 148 image_transform& image_transform::operator*=(const image_transform &other)\r
 149 {\r
 150         opacity_                                *= other.opacity_;      \r
 151         brightness_                             *= other.brightness_;\r
 152         contrast_                               *= other.contrast_;\r
 153         saturation_                             *= other.saturation_;\r
 154 \r
 155         levels_.min_input               = std::max(levels_.min_input, other.levels_.min_input);\r
 156         levels_.max_input               = std::min(levels_.max_input, other.levels_.max_input);\r
 157         \r
 158         levels_.min_output              = std::max(levels_.min_output, other.levels_.min_output);\r
 159         levels_.max_output              = std::min(levels_.max_output, other.levels_.max_output);\r
 160 \r
 161         levels_.gamma                   *= other.levels_.gamma;\r
 162 \r
 163         field_mode_                             = static_cast<field_mode::type>(field_mode_ & other.field_mode_);\r
 164         is_key_                                 |= other.is_key_;\r
 165         fill_translation_[0]    += other.fill_translation_[0]*fill_scale_[0];\r
 166         fill_translation_[1]    += other.fill_translation_[1]*fill_scale_[1];\r
 167         fill_scale_[0]                  *= other.fill_scale_[0];\r
 168         fill_scale_[1]                  *= other.fill_scale_[1];\r
 169         clip_translation_[0]    += other.clip_translation_[0]*clip_scale_[0];\r
 170         clip_translation_[1]    += other.clip_translation_[1]*clip_scale_[1];\r
 171         clip_scale_[0]                  *= other.clip_scale_[0];\r
 172         clip_scale_[1]                  *= other.clip_scale_[1];\r
 173         return *this;\r
 174 }\r
 175 \r
 176 const image_transform image_transform::operator*(const image_transform &other) const\r
 177 {\r
 178         return image_transform(*this) *= other;\r
 179 }\r
 180 \r
 181 void image_transform::set_is_key(bool value){is_key_ = value;}\r
 182 bool image_transform::get_is_key() const{return is_key_;}\r
 183 \r
 184 image_transform tween(double time, const image_transform& source, const image_transform& dest, double duration, const tweener_t& tweener)\r
 185 {       \r
 186         auto do_tween = [](double time, double source, double dest, double duration, const tweener_t& tweener)\r
 187         {\r
 188                 return tweener(time, source, dest-source, duration);\r
 189         };\r
 190         \r
 191         image_transform result; \r
 192         result.set_is_key                       (source.get_is_key() | dest.get_is_key());\r
 193         result.set_field_mode           (static_cast<field_mode::type>(source.get_field_mode() & dest.get_field_mode()));\r
 194         result.set_brightness           (do_tween(time, source.get_brightness(), dest.get_brightness(), duration, tweener));\r
 195         result.set_contrast                     (do_tween(time, source.get_contrast(), dest.get_contrast(), duration, tweener));\r
 196         result.set_saturation           (do_tween(time, source.get_saturation(), dest.get_saturation(), duration, tweener));\r
 197         result.set_opacity                      (do_tween(time, source.get_opacity(), dest.get_opacity(), duration, tweener));\r
 198         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
 199         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
 200         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
 201         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
 202         \r
 203         auto s_levels = source.get_levels();\r
 204         auto d_levels = dest.get_levels();\r
 205 \r
 206         d_levels.max_input = do_tween(time, s_levels.max_input, d_levels.max_input, duration, tweener);\r
 207         d_levels.min_input = do_tween(time, s_levels.min_input, d_levels.min_input, duration, tweener);\r
 208         \r
 209         d_levels.max_output = do_tween(time, s_levels.max_output, d_levels.max_output, duration, tweener);\r
 210         d_levels.min_output = do_tween(time, s_levels.min_output, d_levels.min_output, duration, tweener);\r
 211 \r
 212         d_levels.gamma = do_tween(time, s_levels.gamma, d_levels.gamma, duration, tweener);\r
 213 \r
 214         result.set_levels(d_levels);\r
 215 \r
 216         return result;\r
 217 }\r
 218 \r
 219 bool operator<(const image_transform& lhs, const image_transform& rhs)\r
 220 {\r
 221         return memcmp(&lhs, &rhs, sizeof(image_transform)) < 0;\r
 222 }\r
 223 \r
 224 bool operator==(const image_transform& lhs, const image_transform& rhs)\r
 225 {\r
 226         return memcmp(&lhs, &rhs, sizeof(image_transform)) == 0;\r
 227 }\r
 228 \r
 229 bool operator!=(const image_transform& lhs, const image_transform& rhs)\r
 230 {\r
 231         return !(lhs == rhs);\r
 232 }\r
 233 \r
 234 }}