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