git.sesse.net Git - casparcg/blob - core/producer/stage.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 \r
  21 #include "../StdAfx.h"\r
  22 \r
  23 #include "stage.h"\r
  24 \r
  25 #include "layer.h"\r
  26 \r
  27 #include "frame/basic_frame.h"\r
  28 #include "frame/frame_factory.h"\r
  29 \r
  30 #include <common/concurrency/executor.h>\r
  31 \r
  32 #include <boost/foreach.hpp>\r
  33 #include <boost/timer.hpp>\r
  34 \r
  35 #include <tbb/parallel_for_each.h>\r
  36 \r
  37 #include <boost/property_tree/ptree.hpp>\r
  38 \r
  39 #include <map>\r
  40 \r
  41 namespace caspar { namespace core {\r
  42 \r
  43 struct stage::implementation : public std::enable_shared_from_this<implementation>\r
  44                                                          , boost::noncopyable\r
  45 {               \r
  46         safe_ptr<diagnostics::graph>    graph_;\r
  47         safe_ptr<stage::target_t>               target_;\r
  48         video_format_desc                               format_desc_;\r
  49 \r
  50         boost::timer                                    produce_timer_;\r
  51         boost::timer                                    tick_timer_;\r
  52 \r
  53         std::map<int, layer>                    layers_;        \r
  54 \r
  55         executor                                                executor_;\r
  56 public:\r
  57         implementation(const safe_ptr<diagnostics::graph>& graph, const safe_ptr<stage::target_t>& target, const video_format_desc& format_desc)  \r
  58                 : graph_(graph)\r
  59                 , format_desc_(format_desc)\r
  60                 , target_(target)\r
  61                 , executor_(L"stage")\r
  62         {\r
  63                 graph_->add_guide("tick-time", 0.5f);   \r
  64                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
  65                 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
  66         }\r
  67 \r
  68         void spawn_token()\r
  69         {\r
  70                 std::weak_ptr<implementation> self = shared_from_this();\r
  71                 executor_.begin_invoke([=]{tick(self);});\r
  72         }\r
  73                                                         \r
  74         void tick(const std::weak_ptr<implementation>& self)\r
  75         {               \r
  76                 try\r
  77                 {\r
  78                         produce_timer_.restart();\r
  79 \r
  80                         std::map<int, safe_ptr<basic_frame>> frames;\r
  81                 \r
  82                         BOOST_FOREACH(auto& layer, layers_)                     \r
  83                                 frames[layer.first] = basic_frame::empty();     \r
  84 \r
  85                         tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer) \r
  86                         {\r
  87                                 frames[layer.first] = layer.second.receive();   \r
  88                         });\r
  89                         \r
  90                         graph_->update_value("produce-time", produce_timer_.elapsed()*format_desc_.fps*0.5);\r
  91                         \r
  92                         std::shared_ptr<void> ticket(nullptr, [self](void*)\r
  93                         {\r
  94                                 auto self2 = self.lock();\r
  95                                 if(self2)                               \r
  96                                         self2->executor_.begin_invoke([=]{tick(self);});                                \r
  97                         });\r
  98 \r
  99                         target_->send(std::make_pair(frames, ticket));\r
 100 \r
 101                         graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 102                         tick_timer_.restart();\r
 103                 }\r
 104                 catch(...)\r
 105                 {\r
 106                         layers_.clear();\r
 107                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 108                 }               \r
 109         }\r
 110 \r
 111         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 112         {\r
 113                 executor_.begin_invoke([=]\r
 114                 {\r
 115                         layers_[index].load(producer, preview, auto_play_delta);\r
 116                 }, high_priority);\r
 117         }\r
 118 \r
 119         void pause(int index)\r
 120         {               \r
 121                 executor_.begin_invoke([=]\r
 122                 {\r
 123                         layers_[index].pause();\r
 124                 }, high_priority);\r
 125         }\r
 126 \r
 127         void play(int index)\r
 128         {               \r
 129                 executor_.begin_invoke([=]\r
 130                 {\r
 131                         layers_[index].play();\r
 132                 }, high_priority);\r
 133         }\r
 134 \r
 135         void stop(int index)\r
 136         {               \r
 137                 executor_.begin_invoke([=]\r
 138                 {\r
 139                         layers_[index].stop();\r
 140                 }, high_priority);\r
 141         }\r
 142 \r
 143         void clear(int index)\r
 144         {\r
 145                 executor_.begin_invoke([=]\r
 146                 {\r
 147                         layers_.erase(index);\r
 148                 }, high_priority);\r
 149         }\r
 150                 \r
 151         void clear()\r
 152         {\r
 153                 executor_.begin_invoke([=]\r
 154                 {\r
 155                         layers_.clear();\r
 156                 }, high_priority);\r
 157         }       \r
 158         \r
 159         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 160         {\r
 161                 return std::move(*executor_.invoke([=]\r
 162                 {\r
 163                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 164                 }, high_priority));\r
 165         }\r
 166         \r
 167         void swap_layers(const safe_ptr<stage>& other)\r
 168         {\r
 169                 if(other->impl_.get() == this)\r
 170                         return;\r
 171                 \r
 172                 auto func = [=]\r
 173                 {\r
 174                         std::swap(layers_, other->impl_->layers_);\r
 175                 };              \r
 176                 executor_.begin_invoke([=]\r
 177                 {\r
 178                         other->impl_->executor_.invoke(func, high_priority);\r
 179                 }, high_priority);\r
 180         }\r
 181 \r
 182         void swap_layer(int index, size_t other_index)\r
 183         {\r
 184                 executor_.begin_invoke([=]\r
 185                 {\r
 186                         std::swap(layers_[index], layers_[other_index]);\r
 187                 }, high_priority);\r
 188         }\r
 189 \r
 190         void swap_layer(int index, size_t other_index, const safe_ptr<stage>& other)\r
 191         {\r
 192                 if(other->impl_.get() == this)\r
 193                         swap_layer(index, other_index);\r
 194                 else\r
 195                 {\r
 196                         auto func = [=]\r
 197                         {\r
 198                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 199                         };              \r
 200                         executor_.begin_invoke([=]\r
 201                         {\r
 202                                 other->impl_->executor_.invoke(func, high_priority);\r
 203                         }, high_priority);\r
 204                 }\r
 205         }\r
 206 \r
 207         boost::unique_future<layer_status> get_status(int index)\r
 208         {               \r
 209                 return executor_.begin_invoke([=]\r
 210                 {\r
 211                         return layers_[index].status();\r
 212                 }, high_priority );\r
 213         }\r
 214         \r
 215         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 216         {\r
 217                 return executor_.begin_invoke([=]\r
 218                 {\r
 219                         return layers_[index].foreground();\r
 220                 }, high_priority);\r
 221         }\r
 222         \r
 223         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 224         {\r
 225                 return executor_.begin_invoke([=]\r
 226                 {\r
 227                         return layers_[index].background();\r
 228                 }, high_priority);\r
 229         }\r
 230         \r
 231         void set_video_format_desc(const video_format_desc& format_desc)\r
 232         {\r
 233                 executor_.begin_invoke([=]\r
 234                 {\r
 235                         format_desc_ = format_desc;\r
 236                 }, high_priority);\r
 237         }\r
 238 \r
 239         boost::unique_future<boost::property_tree::wptree> info()\r
 240         {\r
 241                 return std::move(executor_.begin_invoke([&]() -> boost::property_tree::wptree\r
 242                 {\r
 243                         boost::property_tree::wptree info;\r
 244                         auto& layers_node = info.add(L"layers", L"");\r
 245                         BOOST_FOREACH(auto& layer, layers_)\r
 246                         {\r
 247                                 auto layer_info = layer.second.info();\r
 248                                 layer_info.add(L"layer.index", layer.first);\r
 249                                 BOOST_FOREACH(auto& update, layer_info)   \r
 250                                         layers_node.add_child(update.first, update.second);\r
 251                         }\r
 252                         return info;\r
 253                 }, high_priority));\r
 254         }\r
 255 };\r
 256 \r
 257 stage::stage(const safe_ptr<diagnostics::graph>& graph, const safe_ptr<target_t>& target, const video_format_desc& format_desc) : impl_(new implementation(graph, target, format_desc)){}\r
 258 void stage::spawn_token(){impl_->spawn_token();}\r
 259 void stage::load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta){impl_->load(index, producer, preview, auto_play_delta);}\r
 260 void stage::pause(int index){impl_->pause(index);}\r
 261 void stage::play(int index){impl_->play(index);}\r
 262 void stage::stop(int index){impl_->stop(index);}\r
 263 void stage::clear(int index){impl_->clear(index);}\r
 264 void stage::clear(){impl_->clear();}\r
 265 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 266 void stage::swap_layer(int index, size_t other_index){impl_->swap_layer(index, other_index);}\r
 267 void stage::swap_layer(int index, size_t other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 268 boost::unique_future<layer_status> stage::get_status(int index){return impl_->get_status(index);}\r
 269 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(size_t index) {return impl_->foreground(index);}\r
 270 boost::unique_future<safe_ptr<frame_producer>> stage::background(size_t index) {return impl_->background(index);}\r
 271 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 272 void stage::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
 273 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 274 }}