git.sesse.net Git - casparcg/blob - core/producer/stage.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 "stage.h"\r
  25 \r
  26 #include "layer.h"\r
  27 \r
  28 #include "../frame/draw_frame.h"\r
  29 #include "../frame/frame_factory.h"\r
  30 \r
  31 #include <common/concurrency/executor.h>\r
  32 #include <common/diagnostics/graph.h>\r
  33 \r
  34 #include <core/frame/frame_transform.h>\r
  35 \r
  36 #include <boost/foreach.hpp>\r
  37 #include <boost/timer.hpp>\r
  38 #include <boost/property_tree/ptree.hpp>\r
  39 #include <boost/range/algorithm_ext.hpp>\r
  40 \r
  41 #include <tbb/parallel_for_each.h>\r
  42 \r
  43 #include <map>\r
  44 #include <vector>\r
  45 \r
  46 namespace caspar { namespace core {\r
  47         \r
  48 struct stage::impl : public std::enable_shared_from_this<impl>\r
  49 {                       \r
  50         std::map<int, layer>                            layers_;        \r
  51         std::map<int, tweened_transform>        tweens_;        \r
  52         executor                                                        executor_;\r
  53 public:\r
  54         impl() : executor_(L"stage")\r
  55         {\r
  56         }\r
  57                 \r
  58         std::map<int, spl::shared_ptr<draw_frame>> operator()(const struct video_format_desc& format_desc)\r
  59         {               \r
  60                 return executor_.invoke([=]() -> std::map<int, spl::shared_ptr<draw_frame>>\r
  61                 {\r
  62                         std::map<int, spl::shared_ptr<class draw_frame>> frames;\r
  63 \r
  64                         try\r
  65                         {                                       \r
  66                                 BOOST_FOREACH(auto& layer, layers_)                     \r
  67                                         frames[layer.first] = draw_frame::empty();      \r
  68 \r
  69                                 auto format_desc2 = format_desc;\r
  70 \r
  71                                 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer)\r
  72                                 {\r
  73                                         auto& tween             = tweens_[layer.first];\r
  74                                         auto transform  = tween.fetch_and_tick(1);\r
  75 \r
  76                                         frame_producer::flags flags = frame_producer::flags::none;\r
  77                                         if(format_desc2.field_mode != field_mode::progressive)\r
  78                                         {\r
  79                                                 flags |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
  80                                                 flags |= std::abs(transform.fill_translation[1])  > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
  81                                         }\r
  82 \r
  83                                         if(transform.is_key)\r
  84                                                 flags |= frame_producer::flags::alpha_only;\r
  85 \r
  86                                         auto frame = layer.second.receive(flags);       \r
  87                                 \r
  88                                         auto frame1 = spl::make_shared<core::draw_frame>(frame);\r
  89                                         frame1->get_frame_transform() = transform;\r
  90 \r
  91                                         if(format_desc2.field_mode != core::field_mode::progressive)\r
  92                                         {                               \r
  93                                                 auto frame2 = spl::make_shared<core::draw_frame>(frame);\r
  94                                                 frame2->get_frame_transform() = tween.fetch_and_tick(1);\r
  95                                                 frame1 = core::draw_frame::interlace(frame1, frame2, format_desc2.field_mode);\r
  96                                         }\r
  97 \r
  98                                         frames[layer.first] = frame1;\r
  99                                 });             \r
 100                         }\r
 101                         catch(...)\r
 102                         {\r
 103                                 layers_.clear();\r
 104                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
 105                         }       \r
 106 \r
 107                         return frames;\r
 108                 });\r
 109         }\r
 110                 \r
 111         void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, tweener>>& transforms)\r
 112         {\r
 113                 executor_.begin_invoke([=]\r
 114                 {\r
 115                         BOOST_FOREACH(auto& transform, transforms)\r
 116                         {\r
 117                                 auto src = tweens_[std::get<0>(transform)].fetch();\r
 118                                 auto dst = std::get<1>(transform)(src);\r
 119                                 tweens_[std::get<0>(transform)] = tweened_transform(src, dst, std::get<2>(transform), std::get<3>(transform));\r
 120                         }\r
 121                 }, task_priority::high_priority);\r
 122         }\r
 123                                                 \r
 124         void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const tweener& tween)\r
 125         {\r
 126                 executor_.begin_invoke([=]\r
 127                 {\r
 128                         auto src = tweens_[index].fetch();\r
 129                         auto dst = transform(src);\r
 130                         tweens_[index] = tweened_transform(src, dst, mix_duration, tween);\r
 131                 }, task_priority::high_priority);\r
 132         }\r
 133 \r
 134         void clear_transforms(int index)\r
 135         {\r
 136                 executor_.begin_invoke([=]\r
 137                 {\r
 138                         tweens_.erase(index);\r
 139                 }, task_priority::high_priority);\r
 140         }\r
 141 \r
 142         void clear_transforms()\r
 143         {\r
 144                 executor_.begin_invoke([=]\r
 145                 {\r
 146                         tweens_.clear();\r
 147                 }, task_priority::high_priority);\r
 148         }\r
 149                 \r
 150         void load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta)\r
 151         {\r
 152                 executor_.begin_invoke([=]\r
 153                 {\r
 154                         layers_[index].load(producer, auto_play_delta);\r
 155                 }, task_priority::high_priority);\r
 156         }\r
 157 \r
 158         void pause(int index)\r
 159         {               \r
 160                 executor_.begin_invoke([=]\r
 161                 {\r
 162                         layers_[index].pause();\r
 163                 }, task_priority::high_priority);\r
 164         }\r
 165 \r
 166         void play(int index)\r
 167         {               \r
 168                 executor_.begin_invoke([=]\r
 169                 {\r
 170                         layers_[index].play();\r
 171                 }, task_priority::high_priority);\r
 172         }\r
 173 \r
 174         void stop(int index)\r
 175         {               \r
 176                 executor_.begin_invoke([=]\r
 177                 {\r
 178                         layers_[index].stop();\r
 179                 }, task_priority::high_priority);\r
 180         }\r
 181 \r
 182         void clear(int index)\r
 183         {\r
 184                 executor_.begin_invoke([=]\r
 185                 {\r
 186                         layers_.erase(index);\r
 187                 }, task_priority::high_priority);\r
 188         }\r
 189                 \r
 190         void clear()\r
 191         {\r
 192                 executor_.begin_invoke([=]\r
 193                 {\r
 194                         layers_.clear();\r
 195                 }, task_priority::high_priority);\r
 196         }       \r
 197                 \r
 198         void swap_layers(const spl::shared_ptr<stage>& other)\r
 199         {\r
 200                 if(other->impl_.get() == this)\r
 201                         return;\r
 202                 \r
 203                 auto func = [=]\r
 204                 {\r
 205                         std::swap(layers_, other->impl_->layers_);\r
 206                 };              \r
 207                 executor_.begin_invoke([=]\r
 208                 {\r
 209                         other->impl_->executor_.invoke(func, task_priority::high_priority);\r
 210                 }, task_priority::high_priority);\r
 211         }\r
 212 \r
 213         void swap_layer(int index, int other_index)\r
 214         {\r
 215                 executor_.begin_invoke([=]\r
 216                 {\r
 217                         std::swap(layers_[index], layers_[other_index]);\r
 218                 }, task_priority::high_priority);\r
 219         }\r
 220 \r
 221         void swap_layer(int index, int other_index, const spl::shared_ptr<stage>& other)\r
 222         {\r
 223                 if(other->impl_.get() == this)\r
 224                         swap_layer(index, other_index);\r
 225                 else\r
 226                 {\r
 227                         auto func = [=]\r
 228                         {\r
 229                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 230                         };              \r
 231                         executor_.begin_invoke([=]\r
 232                         {\r
 233                                 other->impl_->executor_.invoke(func, task_priority::high_priority);\r
 234                         }, task_priority::high_priority);\r
 235                 }\r
 236         }\r
 237                 \r
 238         boost::unique_future<spl::shared_ptr<frame_producer>> foreground(int index)\r
 239         {\r
 240                 return executor_.begin_invoke([=]\r
 241                 {\r
 242                         return layers_[index].foreground();\r
 243                 }, task_priority::high_priority);\r
 244         }\r
 245         \r
 246         boost::unique_future<spl::shared_ptr<frame_producer>> background(int index)\r
 247         {\r
 248                 return executor_.begin_invoke([=]\r
 249                 {\r
 250                         return layers_[index].background();\r
 251                 }, task_priority::high_priority);\r
 252         }\r
 253 \r
 254         boost::unique_future<boost::property_tree::wptree> info()\r
 255         {\r
 256                 return executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 257                 {\r
 258                         boost::property_tree::wptree info;\r
 259                         BOOST_FOREACH(auto& layer, layers_)                     \r
 260                                 info.add_child(L"layers.layer", layer.second.info())\r
 261                                         .add(L"index", layer.first);    \r
 262                         return info;\r
 263                 }, task_priority::high_priority);\r
 264         }\r
 265 \r
 266         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 267         {\r
 268                 return executor_.begin_invoke([=]\r
 269                 {\r
 270                         return layers_[index].info();\r
 271                 }, task_priority::high_priority);\r
 272         }               \r
 273 };\r
 274 \r
 275 stage::stage() : impl_(new impl()){}\r
 276 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}\r
 277 void stage::apply_transform(int index, const std::function<core::frame_transform(core::frame_transform)>& transform, unsigned int mix_duration, const tweener& tween){impl_->apply_transform(index, transform, mix_duration, tween);}\r
 278 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 279 void stage::clear_transforms(){impl_->clear_transforms();}\r
 280 void stage::load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta){impl_->load(index, producer, auto_play_delta);}\r
 281 void stage::pause(int index){impl_->pause(index);}\r
 282 void stage::play(int index){impl_->play(index);}\r
 283 void stage::stop(int index){impl_->stop(index);}\r
 284 void stage::clear(int index){impl_->clear(index);}\r
 285 void stage::clear(){impl_->clear();}\r
 286 void stage::swap_layers(const spl::shared_ptr<stage>& other){impl_->swap_layers(other);}\r
 287 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 288 void stage::swap_layer(int index, int other_index, const spl::shared_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 289 boost::unique_future<spl::shared_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 290 boost::unique_future<spl::shared_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 291 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 292 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 293 std::map<int, spl::shared_ptr<class draw_frame>> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}\r
 294 }}