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         governor&                                                                       governor_;\r
  52 public:\r
  53         implementation(stage::target_t& target, governor& governor)  \r
  54                 : target_(target)\r
  55                 , governor_(governor)\r
  56         {\r
  57                 start();\r
  58         }\r
  59 \r
  60         ~implementation()\r
  61         {\r
  62                 send(is_running_, false);\r
  63                 governor_.cancel();\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_, stage::target_element_t(std::make_pair(frames, governor_.acquire())));\r
  88                         }\r
  89                         catch(...)\r
  90                         {\r
  91                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
  92                                 clear();\r
  93                                 Concurrency::wait(20);\r
  94                         }       \r
  95                 }\r
  96 \r
  97                 send(is_running_, false);\r
  98                 done();\r
  99         }\r
 100                                 \r
 101         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 102         {\r
 103                 {\r
 104                         critical_section::scoped_lock lock(mutex_);\r
 105                         \r
 106                         layers_[index].load(producer, preview, auto_play_delta);\r
 107                 }\r
 108         }\r
 109 \r
 110         void pause(int index)\r
 111         {               \r
 112                 {\r
 113                         critical_section::scoped_lock lock(mutex_);\r
 114                         \r
 115                         layers_[index].pause();\r
 116                 }\r
 117         }\r
 118 \r
 119         void play(int index)\r
 120         {               \r
 121                 {\r
 122                         critical_section::scoped_lock lock(mutex_);\r
 123                         \r
 124                         layers_[index].play();\r
 125                 }\r
 126         }\r
 127 \r
 128         void stop(int index)\r
 129         {               \r
 130                 {\r
 131                         critical_section::scoped_lock lock(mutex_);\r
 132                         \r
 133                         layers_[index].stop();\r
 134                 }\r
 135         }\r
 136 \r
 137         void clear(int index)\r
 138         {\r
 139                 {\r
 140                         critical_section::scoped_lock lock(mutex_);\r
 141                         \r
 142                         layers_.erase(index);\r
 143                 }\r
 144         }\r
 145                 \r
 146         void clear()\r
 147         {\r
 148                 {\r
 149                         critical_section::scoped_lock lock(mutex_);\r
 150                         \r
 151                         layers_.clear();\r
 152                 }\r
 153         }       \r
 154         \r
 155         void swap_layer(int index, size_t other_index)\r
 156         {\r
 157                 {\r
 158                         critical_section::scoped_lock lock(mutex_);\r
 159                         \r
 160                         std::swap(layers_[index], layers_[other_index]);\r
 161                 }\r
 162         }\r
 163 \r
 164         void swap_layer(int index, size_t other_index, stage& other)\r
 165         {\r
 166                 if(other.impl_.get() == this)\r
 167                         swap_layer(index, other_index);\r
 168                 else\r
 169                 {                       \r
 170                         {\r
 171                                 critical_section::scoped_lock lock1(mutex_);\r
 172                                 critical_section::scoped_lock lock2(other.impl_->mutex_);\r
 173 \r
 174                                 std::swap(layers_[index], other.impl_->layers_[other_index]);\r
 175                         }\r
 176                 }\r
 177         }\r
 178 \r
 179         void swap(stage& other)\r
 180         {\r
 181                 if(other.impl_.get() == this)\r
 182                         return;\r
 183                 \r
 184                 {\r
 185                         critical_section::scoped_lock lock1(mutex_);\r
 186                         critical_section::scoped_lock lock2(other.impl_->mutex_);\r
 187                         \r
 188                         std::swap(layers_, other.impl_->layers_);\r
 189                 }\r
 190         }\r
 191 \r
 192         layer_status get_status(int index)\r
 193         {               \r
 194                 {\r
 195                         critical_section::scoped_lock lock(mutex_);\r
 196                         \r
 197                         return layers_[index].status();\r
 198                 }\r
 199         }\r
 200         \r
 201         safe_ptr<frame_producer> foreground(int index)\r
 202         {\r
 203                 {\r
 204                         critical_section::scoped_lock lock(mutex_);\r
 205                         \r
 206                         return layers_[index].foreground();\r
 207                 }\r
 208         }\r
 209         \r
 210         safe_ptr<frame_producer> background(int index)\r
 211         {\r
 212                 {\r
 213                         critical_section::scoped_lock lock(mutex_);\r
 214                         \r
 215                         return layers_[index].background();\r
 216                 }\r
 217         }\r
 218 \r
 219         std::wstring print() const\r
 220         {\r
 221                 // C-TODO\r
 222                 return L"stage []";// + boost::lexical_cast<std::wstring>(channel_.index()) + L"]";\r
 223         }\r
 224 \r
 225 };\r
 226 \r
 227 stage::stage(target_t& target, governor& governor) : impl_(new implementation(target, governor)){}\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 }}