git.sesse.net Git - casparcg/blob - core/producer/frame_producer_device.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 "frame_producer_device.h"\r
  24 \r
  25 #include "layer.h"\r
  26 #include "destroy_producer_proxy.h"\r
  27 \r
  28 #include <core/producer/frame/basic_frame.h>\r
  29 #include <core/producer/frame/frame_factory.h>\r
  30 \r
  31 #include <common/diagnostics/graph.h>\r
  32 #include <common/concurrency/executor.h>\r
  33 \r
  34 #include <boost/timer.hpp>\r
  35 \r
  36 #include <tbb/parallel_for.h>\r
  37 \r
  38 #include <map>\r
  39 \r
  40 namespace caspar { namespace core {\r
  41 \r
  42 struct frame_producer_device::implementation : boost::noncopyable\r
  43 {               \r
  44         std::map<int, layer>             layers_;               \r
  45         const video_format_desc          format_desc_;  \r
  46         const output_t                           output_;\r
  47         \r
  48         safe_ptr<diagnostics::graph> diag_;\r
  49         boost::timer                             frame_timer_;\r
  50         boost::timer                             tick_timer_;\r
  51         boost::timer                             output_timer_;\r
  52         \r
  53         executor                                        executor_;\r
  54 public:\r
  55         implementation(const video_format_desc& format_desc, const output_t& output)  \r
  56                 : format_desc_(format_desc)\r
  57                 , diag_(diagnostics::create_graph(std::string("frame_producer_device")))\r
  58                 , executor_(L"frame_producer_device")\r
  59                 , output_(output)\r
  60         {\r
  61                 diag_->add_guide("frame-time", 0.5f);   \r
  62                 diag_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
  63                 diag_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));\r
  64                 diag_->set_color("output-time", diagnostics::color(0.5f, 1.0f, 0.2f));\r
  65 \r
  66                 executor_.set_priority_class(above_normal_priority_class);\r
  67                 executor_.begin_invoke([=]{tick();});           \r
  68         }\r
  69                         \r
  70         void tick()\r
  71         {                               \r
  72                 try\r
  73                 {\r
  74                         auto frame = render();\r
  75                         output_timer_.restart();\r
  76                         output_(frame);\r
  77                         diag_->update_value("output-time", static_cast<float>(output_timer_.elapsed()*format_desc_.fps*0.5));\r
  78                 }\r
  79                 catch(...)\r
  80                 {\r
  81                         CASPAR_LOG_CURRENT_EXCEPTION();\r
  82                 }\r
  83 \r
  84                 executor_.begin_invoke([=]{tick();});\r
  85         }\r
  86                         \r
  87         std::map<int, safe_ptr<basic_frame>> render()\r
  88         {       \r
  89                 frame_timer_.restart();\r
  90 \r
  91                 std::map<int, safe_ptr<basic_frame>> frames;\r
  92                 BOOST_FOREACH(auto& layer, layers_)\r
  93                         frames[layer.first] = basic_frame::empty();\r
  94 \r
  95                 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](decltype(*layers_.begin())& pair)\r
  96                 {\r
  97                         frames[pair.first] = pair.second.receive();\r
  98                 });\r
  99                 \r
 100                 diag_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 101 \r
 102                 diag_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);\r
 103                 tick_timer_.restart();\r
 104 \r
 105                 return frames;\r
 106         }\r
 107 \r
 108         void load(int index, const safe_ptr<frame_producer>& producer, bool preview)\r
 109         {\r
 110                 executor_.invoke([&]{layers_[index].load(make_safe<destroy_producer_proxy>(producer), preview);});\r
 111         }\r
 112 \r
 113         void pause(int index)\r
 114         {               \r
 115                 executor_.invoke([&]{layers_[index].pause();});\r
 116         }\r
 117 \r
 118         void play(int index)\r
 119         {               \r
 120                 executor_.invoke([&]{layers_[index].play();});\r
 121         }\r
 122 \r
 123         void stop(int index)\r
 124         {               \r
 125                 executor_.invoke([&]{layers_[index].stop();});\r
 126         }\r
 127 \r
 128         void clear(int index)\r
 129         {\r
 130                 executor_.invoke([&]{layers_.erase(index);});\r
 131         }\r
 132                 \r
 133         void clear()\r
 134         {\r
 135                 executor_.invoke([&]{layers_.clear();});\r
 136         }       \r
 137         \r
 138         void swap_layer(int index, size_t other_index)\r
 139         {\r
 140                 executor_.invoke([&]{layers_[index].swap(layers_[other_index]);});\r
 141         }\r
 142 \r
 143         void swap_layer(int index, size_t other_index, frame_producer_device& other)\r
 144         {\r
 145                 if(other.impl_.get() == this)\r
 146                         swap_layer(index, other_index);\r
 147                 else\r
 148                 {\r
 149                         if(format_desc_ != other.impl_->format_desc_)\r
 150                                 BOOST_THROW_EXCEPTION(invalid_operation() << msg_info("Cannot swap between channels with different formats."));\r
 151 \r
 152                         auto func = [&]{layers_[index].swap(other.impl_->layers_[other_index]);};\r
 153                 \r
 154                         executor_.invoke([&]{other.impl_->executor_.invoke(func);});\r
 155                 }\r
 156         }\r
 157 \r
 158         void swap(frame_producer_device& other)\r
 159         {\r
 160                 if(other.impl_.get() == this)\r
 161                         return;\r
 162 \r
 163                 if(format_desc_ != other.impl_->format_desc_)\r
 164                         BOOST_THROW_EXCEPTION(invalid_operation() << msg_info("Cannot swap between channels with different formats."));\r
 165 \r
 166                 auto func = [&]\r
 167                 {\r
 168                         auto sel_first = [](const std::pair<int, layer>& pair){return pair.first;};\r
 169 \r
 170                         std::set<int> indices;\r
 171                         auto inserter = std::inserter(indices, indices.begin());\r
 172 \r
 173                         std::transform(layers_.begin(), layers_.end(), inserter, sel_first);\r
 174                         std::transform(other.impl_->layers_.begin(), other.impl_->layers_.end(), inserter, sel_first);\r
 175                         std::for_each(indices.begin(), indices.end(), [&](int index)\r
 176                         {\r
 177                                 layers_[index].swap(other.impl_->layers_[index]);\r
 178                         });                                     \r
 179                 };\r
 180                 \r
 181                 executor_.invoke([&]{other.impl_->executor_.invoke(func);});\r
 182         }\r
 183         \r
 184         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 185         {\r
 186                 return executor_.begin_invoke([=]{return layers_[index].foreground();});\r
 187         }\r
 188         \r
 189         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 190         {\r
 191                 return executor_.begin_invoke([=]{return layers_[index].background();});\r
 192         }\r
 193 };\r
 194 \r
 195 frame_producer_device::frame_producer_device(const video_format_desc& format_desc, const output_t& output) : impl_(new implementation(format_desc, output)){}\r
 196 frame_producer_device::frame_producer_device(frame_producer_device&& other) : impl_(std::move(other.impl_)){}\r
 197 void frame_producer_device::swap(frame_producer_device& other){impl_->swap(other);}\r
 198 void frame_producer_device::load(int index, const safe_ptr<frame_producer>& producer, bool preview){impl_->load(index, producer, preview);}\r
 199 void frame_producer_device::pause(int index){impl_->pause(index);}\r
 200 void frame_producer_device::play(int index){impl_->play(index);}\r
 201 void frame_producer_device::stop(int index){impl_->stop(index);}\r
 202 void frame_producer_device::clear(int index){impl_->clear(index);}\r
 203 void frame_producer_device::clear(){impl_->clear();}\r
 204 void frame_producer_device::swap_layer(int index, size_t other_index){impl_->swap_layer(index, other_index);}\r
 205 void frame_producer_device::swap_layer(int index, size_t other_index, frame_producer_device& other){impl_->swap_layer(index, other_index, other);}\r
 206 boost::unique_future<safe_ptr<frame_producer>> frame_producer_device::foreground(size_t index) {return impl_->foreground(index);}\r
 207 boost::unique_future<safe_ptr<frame_producer>> frame_producer_device::background(size_t index) {return impl_->background(index);}\r
 208 }}