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 <common/concurrency/executor.h>\r
  31 #include <common/utility/move_on_copy.h>\r
  32 \r
  33 #include <boost/foreach.hpp>\r
  34 \r
  35 #include <agents.h>\r
  36 #include <ppl.h>\r
  37 \r
  38 #include <map>\r
  39 #include <set>\r
  40 \r
  41 using namespace Concurrency;\r
  42 \r
  43 namespace caspar { namespace core {\r
  44 \r
  45 struct stage::implementation : public agent, public boost::noncopyable\r
  46 {               \r
  47         overwrite_buffer<bool>                                          is_running_;\r
  48         Concurrency::critical_section                           mutex_;\r
  49         stage::target_t&                                                        target_;\r
  50         std::map<int, layer>                                            layers_;        \r
  51         safe_ptr<semaphore>                                                     semaphore_;\r
  52 public:\r
  53         implementation(stage::target_t& target, const safe_ptr<semaphore>& semaphore)  \r
  54                 : target_(target)\r
  55                 , semaphore_(semaphore)\r
  56         {\r
  57                 start();\r
  58         }\r
  59 \r
  60         ~implementation()\r
  61         {\r
  62                 send(is_running_, false);\r
  63                 semaphore_->release();\r
  64                 agent::wait(this);\r
  65         }\r
  66 \r
  67         virtual void run()\r
  68         {\r
  69                 send(is_running_, true);\r
  70                 while(is_running_.value())\r
  71                 {\r
  72                         try\r
  73                         {\r
  74                                 std::map<int, safe_ptr<basic_frame>> frames;\r
  75                                 {\r
  76                                         critical_section::scoped_lock lock(mutex_);\r
  77                 \r
  78                                         BOOST_FOREACH(auto& layer, layers_)                     \r
  79                                                 frames[layer.first] = basic_frame::empty();     \r
  80 \r
  81                                         Concurrency::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer) \r
  82                                         {\r
  83                                                 frames[layer.first] = layer.second.receive();   \r
  84                                         });\r
  85                                 }\r
  86 \r
  87                                 send(target_, make_safe<message<decltype(frames)>>(frames, token(semaphore_)));\r
  88                         }\r
  89                         catch(...)\r
  90                         {\r
  91                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
  92                                 Concurrency::wait(20);\r
  93                         }       \r
  94                 }\r
  95 \r
  96                 send(is_running_, false);\r
  97                 done();\r
  98         }\r
  99                                 \r
 100         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 101         {\r
 102                 {\r
 103                         critical_section::scoped_lock lock(mutex_);\r
 104                         \r
 105                         layers_[index].load(producer, preview, auto_play_delta);\r
 106                 }\r
 107         }\r
 108 \r
 109         void pause(int index)\r
 110         {               \r
 111                 {\r
 112                         critical_section::scoped_lock lock(mutex_);\r
 113                         \r
 114                         layers_[index].pause();\r
 115                 }\r
 116         }\r
 117 \r
 118         void play(int index)\r
 119         {               \r
 120                 {\r
 121                         critical_section::scoped_lock lock(mutex_);\r
 122                         \r
 123                         layers_[index].play();\r
 124                 }\r
 125         }\r
 126 \r
 127         void stop(int index)\r
 128         {               \r
 129                 {\r
 130                         critical_section::scoped_lock lock(mutex_);\r
 131                         \r
 132                         layers_[index].stop();\r
 133                 }\r
 134         }\r
 135 \r
 136         void clear(int index)\r
 137         {\r
 138                 {\r
 139                         critical_section::scoped_lock lock(mutex_);\r
 140                         \r
 141                         layers_.erase(index);\r
 142                 }\r
 143         }\r
 144                 \r
 145         void clear()\r
 146         {\r
 147                 {\r
 148                         critical_section::scoped_lock lock(mutex_);\r
 149                         \r
 150                         layers_.clear();\r
 151                 }\r
 152         }       \r
 153         \r
 154         void swap_layer(int index, size_t other_index)\r
 155         {\r
 156                 {\r
 157                         critical_section::scoped_lock lock(mutex_);\r
 158                         \r
 159                         std::swap(layers_[index], layers_[other_index]);\r
 160                 }\r
 161         }\r
 162 \r
 163         void swap_layer(int index, size_t other_index, stage& other)\r
 164         {\r
 165                 if(other.impl_.get() == this)\r
 166                         swap_layer(index, other_index);\r
 167                 else\r
 168                 {                       \r
 169                         {\r
 170                                 critical_section::scoped_lock lock1(mutex_);\r
 171                                 critical_section::scoped_lock lock2(other.impl_->mutex_);\r
 172 \r
 173                                 std::swap(layers_[index], other.impl_->layers_[other_index]);\r
 174                         }\r
 175                 }\r
 176         }\r
 177 \r
 178         void swap(stage& other)\r
 179         {\r
 180                 if(other.impl_.get() == this)\r
 181                         return;\r
 182                 \r
 183                 {\r
 184                         critical_section::scoped_lock lock1(mutex_);\r
 185                         critical_section::scoped_lock lock2(other.impl_->mutex_);\r
 186                         \r
 187                         std::swap(layers_, other.impl_->layers_);\r
 188                 }\r
 189         }\r
 190 \r
 191         layer_status get_status(int index)\r
 192         {               \r
 193                 {\r
 194                         critical_section::scoped_lock lock(mutex_);\r
 195                         \r
 196                         return layers_[index].status();\r
 197                 }\r
 198         }\r
 199         \r
 200         safe_ptr<frame_producer> foreground(int index)\r
 201         {\r
 202                 {\r
 203                         critical_section::scoped_lock lock(mutex_);\r
 204                         \r
 205                         return layers_[index].foreground();\r
 206                 }\r
 207         }\r
 208         \r
 209         safe_ptr<frame_producer> background(int index)\r
 210         {\r
 211                 {\r
 212                         critical_section::scoped_lock lock(mutex_);\r
 213                         \r
 214                         return layers_[index].background();\r
 215                 }\r
 216         }\r
 217 \r
 218         std::wstring print() const\r
 219         {\r
 220                 // C-TODO\r
 221                 return L"stage []";// + boost::lexical_cast<std::wstring>(channel_.index()) + L"]";\r
 222         }\r
 223 \r
 224 };\r
 225 \r
 226 stage::stage(target_t& target, const safe_ptr<semaphore>& semaphore) : impl_(new implementation(target, semaphore)){}\r
 227 void stage::swap(stage& other){impl_->swap(other);}\r
 228 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
 229 void stage::pause(int index){impl_->pause(index);}\r
 230 void stage::play(int index){impl_->play(index);}\r
 231 void stage::stop(int index){impl_->stop(index);}\r
 232 void stage::clear(int index){impl_->clear(index);}\r
 233 void stage::clear(){impl_->clear();}\r
 234 void stage::swap_layer(int index, size_t other_index){impl_->swap_layer(index, other_index);}\r
 235 void stage::swap_layer(int index, size_t other_index, stage& other){impl_->swap_layer(index, other_index, other);}\r
 236 layer_status stage::get_status(int index){return impl_->get_status(index);}\r
 237 safe_ptr<frame_producer> stage::foreground(size_t index) {return impl_->foreground(index);}\r
 238 safe_ptr<frame_producer> stage::background(size_t index) {return impl_->background(index);}\r
 239 }}