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 <core/producer/frame/basic_frame.h>\r
  28 #include <core/producer/frame/frame_factory.h>\r
  29 \r
  30 #include <boost/foreach.hpp>\r
  31 \r
  32 #include <agents.h>\r
  33 #include <ppl.h>\r
  34 \r
  35 #include <map>\r
  36 #include <set>\r
  37 \r
  38 using namespace Concurrency;\r
  39 \r
  40 namespace caspar { namespace core {\r
  41 \r
  42 struct stage::implementation : public agent, public boost::noncopyable\r
  43 {               \r
  44         overwrite_buffer<bool>                                          is_running_;\r
  45         Concurrency::critical_section                           mutex_;\r
  46         stage::target_t&                                                        target_;\r
  47         std::map<int, layer>                                            layers_;        \r
  48         governor&                                                                       governor_;\r
  49 public:\r
  50         implementation(stage::target_t& target, governor& governor)  \r
  51                 : target_(target)\r
  52                 , governor_(governor)\r
  53         {\r
  54                 start();\r
  55         }\r
  56 \r
  57         ~implementation()\r
  58         {\r
  59                 send(is_running_, false);\r
  60                 governor_.cancel();\r
  61                 agent::wait(this);\r
  62         }\r
  63 \r
  64         virtual void run()\r
  65         {\r
  66                 send(is_running_, true);\r
  67                 while(is_running_.value())\r
  68                 {\r
  69                         try\r
  70                         {\r
  71                                 std::map<int, safe_ptr<basic_frame>> frames;\r
  72                                 {\r
  73                                         critical_section::scoped_lock lock(mutex_);\r
  74                 \r
  75                                         BOOST_FOREACH(auto& layer, layers_)                     \r
  76                                                 frames[layer.first] = basic_frame::empty();     \r
  77 \r
  78                                         Concurrency::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer) \r
  79                                         {\r
  80                                                 frames[layer.first] = layer.second.receive();   \r
  81                                         });\r
  82                                 }\r
  83 \r
  84                                 send(target_, stage::target_element_t(std::make_pair(frames, governor_.acquire())));\r
  85                         }\r
  86                         catch(...)\r
  87                         {\r
  88                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
  89                                 clear();\r
  90                                 Concurrency::wait(20);\r
  91                         }       \r
  92                 }\r
  93 \r
  94                 send(is_running_, false);\r
  95                 done();\r
  96         }\r
  97                                 \r
  98         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
  99         {\r
 100                 {\r
 101                         critical_section::scoped_lock lock(mutex_);\r
 102                         \r
 103                         layers_[index].load(producer, preview, auto_play_delta);\r
 104                 }\r
 105         }\r
 106 \r
 107         void pause(int index)\r
 108         {               \r
 109                 {\r
 110                         critical_section::scoped_lock lock(mutex_);\r
 111                         \r
 112                         layers_[index].pause();\r
 113                 }\r
 114         }\r
 115 \r
 116         void play(int index)\r
 117         {               \r
 118                 {\r
 119                         critical_section::scoped_lock lock(mutex_);\r
 120                         \r
 121                         layers_[index].play();\r
 122                 }\r
 123         }\r
 124 \r
 125         void stop(int index)\r
 126         {               \r
 127                 {\r
 128                         critical_section::scoped_lock lock(mutex_);\r
 129                         \r
 130                         layers_[index].stop();\r
 131                 }\r
 132         }\r
 133 \r
 134         void clear(int index)\r
 135         {\r
 136                 {\r
 137                         critical_section::scoped_lock lock(mutex_);\r
 138                         \r
 139                         layers_.erase(index);\r
 140                 }\r
 141         }\r
 142                 \r
 143         void clear()\r
 144         {\r
 145                 {\r
 146                         critical_section::scoped_lock lock(mutex_);\r
 147                         \r
 148                         layers_.clear();\r
 149                 }\r
 150         }       \r
 151         \r
 152         void swap_layer(int index, size_t other_index)\r
 153         {\r
 154                 {\r
 155                         critical_section::scoped_lock lock(mutex_);\r
 156                         \r
 157                         std::swap(layers_[index], layers_[other_index]);\r
 158                 }\r
 159         }\r
 160 \r
 161         void swap_layer(int index, size_t other_index, stage& other)\r
 162         {\r
 163                 if(other.impl_.get() == this)\r
 164                         swap_layer(index, other_index);\r
 165                 else\r
 166                 {                       \r
 167                         {\r
 168                                 critical_section::scoped_lock lock1(mutex_);\r
 169                                 critical_section::scoped_lock lock2(other.impl_->mutex_);\r
 170 \r
 171                                 std::swap(layers_[index], other.impl_->layers_[other_index]);\r
 172                         }\r
 173                 }\r
 174         }\r
 175 \r
 176         void swap(stage& other)\r
 177         {\r
 178                 if(other.impl_.get() == this)\r
 179                         return;\r
 180                 \r
 181                 {\r
 182                         critical_section::scoped_lock lock1(mutex_);\r
 183                         critical_section::scoped_lock lock2(other.impl_->mutex_);\r
 184                         \r
 185                         std::swap(layers_, other.impl_->layers_);\r
 186                 }\r
 187         }\r
 188 \r
 189         layer_status get_status(int index)\r
 190         {               \r
 191                 {\r
 192                         critical_section::scoped_lock lock(mutex_);\r
 193                         \r
 194                         return layers_[index].status();\r
 195                 }\r
 196         }\r
 197         \r
 198         safe_ptr<frame_producer> foreground(int index)\r
 199         {\r
 200                 {\r
 201                         critical_section::scoped_lock lock(mutex_);\r
 202                         \r
 203                         return layers_[index].foreground();\r
 204                 }\r
 205         }\r
 206         \r
 207         safe_ptr<frame_producer> background(int index)\r
 208         {\r
 209                 {\r
 210                         critical_section::scoped_lock lock(mutex_);\r
 211                         \r
 212                         return layers_[index].background();\r
 213                 }\r
 214         }\r
 215 \r
 216         std::wstring print() const\r
 217         {\r
 218                 // C-TODO\r
 219                 return L"stage []";// + boost::lexical_cast<std::wstring>(channel_.index()) + L"]";\r
 220         }\r
 221 \r
 222 };\r
 223 \r
 224 stage::stage(target_t& target, governor& governor) : impl_(new implementation(target, governor)){}\r
 225 void stage::swap(stage& other){impl_->swap(other);}\r
 226 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
 227 void stage::pause(int index){impl_->pause(index);}\r
 228 void stage::play(int index){impl_->play(index);}\r
 229 void stage::stop(int index){impl_->stop(index);}\r
 230 void stage::clear(int index){impl_->clear(index);}\r
 231 void stage::clear(){impl_->clear();}\r
 232 void stage::swap_layer(int index, size_t other_index){impl_->swap_layer(index, other_index);}\r
 233 void stage::swap_layer(int index, size_t other_index, stage& other){impl_->swap_layer(index, other_index, other);}\r
 234 layer_status stage::get_status(int index){return impl_->get_status(index);}\r
 235 safe_ptr<frame_producer> stage::foreground(size_t index) {return impl_->foreground(index);}\r
 236 safe_ptr<frame_producer> stage::background(size_t index) {return impl_->background(index);}\r
 237 }}