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