git.sesse.net Git - casparcg/blob - core/producer/stage.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../StdAfx.h"\r
  23 \r
  24 #include "stage.h"\r
  25 \r
  26 #include "layer.h"\r
  27 \r
  28 #include "../frame/draw_frame.h"\r
  29 #include "../frame/frame_factory.h"\r
  30 \r
  31 #include <common/concurrency/executor.h>\r
  32 #include <common/diagnostics/graph.h>\r
  33 \r
  34 #include <core/frame/frame_transform.h>\r
  35 \r
  36 #include <boost/foreach.hpp>\r
  37 #include <boost/timer.hpp>\r
  38 #include <boost/property_tree/ptree.hpp>\r
  39 #include <boost/range/algorithm_ext.hpp>\r
  40 \r
  41 #include <tbb/parallel_for_each.h>\r
  42 \r
  43 #include <functional>\r
  44 #include <map>\r
  45 #include <vector>\r
  46 \r
  47 namespace caspar { namespace core {\r
  48         \r
  49 struct stage::impl : public std::enable_shared_from_this<impl>\r
  50 {                               \r
  51         spl::shared_ptr<diagnostics::graph> graph_;\r
  52         spl::shared_ptr<monitor::subject>       event_subject_;\r
  53         std::map<int, layer>                            layers_;        \r
  54         std::map<int, tweened_transform>        tweens_;        \r
  55         executor                                                        executor_;\r
  56 public:\r
  57         impl(spl::shared_ptr<diagnostics::graph> graph) \r
  58                 : graph_(std::move(graph))\r
  59                 , executor_(L"stage")\r
  60         {\r
  61                 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));\r
  62         }\r
  63                 \r
  64         std::map<int, spl::shared_ptr<draw_frame>> operator()(const struct video_format_desc& format_desc)\r
  65         {               \r
  66                 return executor_.invoke([=]() -> std::map<int, spl::shared_ptr<draw_frame>>\r
  67                 {\r
  68                         boost::timer frame_timer;\r
  69 \r
  70                         std::map<int, spl::shared_ptr<class draw_frame>> frames;\r
  71                         \r
  72                         try\r
  73                         {                       \r
  74                                 std::vector<int> indices;\r
  75 \r
  76                                 BOOST_FOREACH(auto& layer, layers_)     \r
  77                                 {\r
  78                                         frames[layer.first] = draw_frame::empty();      \r
  79                                         indices.push_back(layer.first);\r
  80                                 }                               \r
  81 \r
  82                                 // WORKAROUND: Compiler doesn't seem to like lambda.\r
  83                                 tbb::parallel_for_each(indices.begin(), indices.end(), std::bind(&stage::impl::draw, this, std::placeholders::_1, std::ref(format_desc), std::ref(frames)));\r
  84                         }\r
  85                         catch(...)\r
  86                         {\r
  87                                 layers_.clear();\r
  88                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
  89                         }       \r
  90                         \r
  91                         graph_->set_value("produce-time", frame_timer.elapsed()*format_desc.fps*0.5);\r
  92                         //*event_subject_ << monitor::event("profiler/time") % frame_timer.elapsed() % (1.0/format_desc.fps);\r
  93 \r
  94                         return frames;\r
  95                 });\r
  96         }\r
  97 \r
  98         void draw(int index, const video_format_desc& format_desc, std::map<int, spl::shared_ptr<draw_frame>>& frames)\r
  99         {\r
 100                 auto& layer             = layers_[index];\r
 101                 auto& tween             = tweens_[index];\r
 102                 auto transform  = tween.fetch_and_tick(1);\r
 103 \r
 104                 frame_producer::flags flags = frame_producer::flags::none;\r
 105                 if(format_desc.field_mode != field_mode::progressive)\r
 106                 {\r
 107                         flags |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
 108                         flags |= std::abs(transform.fill_translation[1])  > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
 109                 }\r
 110 \r
 111                 if(transform.is_key)\r
 112                         flags |= frame_producer::flags::alpha_only;\r
 113 \r
 114                 auto frame = layer.receive(flags, format_desc); \r
 115                                 \r
 116                 auto frame1 = spl::make_shared<core::draw_frame>(frame);\r
 117                 frame1->get_frame_transform() = transform;\r
 118 \r
 119                 if(format_desc.field_mode != core::field_mode::progressive)\r
 120                 {                               \r
 121                         auto frame2 = spl::make_shared<core::draw_frame>(frame);\r
 122                         frame2->get_frame_transform() = tween.fetch_and_tick(1);\r
 123                         frame1 = core::draw_frame::interlace(frame1, frame2, format_desc.field_mode);\r
 124                 }\r
 125 \r
 126                 frames[index] = frame;\r
 127         }\r
 128 \r
 129         layer& get_layer(int index)\r
 130         {\r
 131                 auto it = layers_.find(index);\r
 132                 if(it == std::end(layers_))\r
 133                 {\r
 134                         it = layers_.insert(std::make_pair(index, layer(index))).first;\r
 135                         it->second.subscribe(event_subject_);\r
 136                 }\r
 137                 return it->second;\r
 138         }\r
 139                 \r
 140         void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, tweener>>& transforms)\r
 141         {\r
 142                 executor_.begin_invoke([=]\r
 143                 {\r
 144                         BOOST_FOREACH(auto& transform, transforms)\r
 145                         {\r
 146                                 auto src = tweens_[std::get<0>(transform)].fetch();\r
 147                                 auto dst = std::get<1>(transform)(src);\r
 148                                 tweens_[std::get<0>(transform)] = tweened_transform(src, dst, std::get<2>(transform), std::get<3>(transform));\r
 149                         }\r
 150                 }, task_priority::high_priority);\r
 151         }\r
 152                                                 \r
 153         void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const tweener& tween)\r
 154         {\r
 155                 executor_.begin_invoke([=]\r
 156                 {\r
 157                         auto src = tweens_[index].fetch();\r
 158                         auto dst = transform(src);\r
 159                         tweens_[index] = tweened_transform(src, dst, mix_duration, tween);\r
 160                 }, task_priority::high_priority);\r
 161         }\r
 162 \r
 163         void clear_transforms(int index)\r
 164         {\r
 165                 executor_.begin_invoke([=]\r
 166                 {\r
 167                         tweens_.erase(index);\r
 168                 }, task_priority::high_priority);\r
 169         }\r
 170 \r
 171         void clear_transforms()\r
 172         {\r
 173                 executor_.begin_invoke([=]\r
 174                 {\r
 175                         tweens_.clear();\r
 176                 }, task_priority::high_priority);\r
 177         }\r
 178                 \r
 179         void load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta)\r
 180         {\r
 181                 executor_.begin_invoke([=]\r
 182                 {\r
 183                         get_layer(index).load(producer, auto_play_delta);\r
 184                 }, task_priority::high_priority);\r
 185         }\r
 186 \r
 187         void pause(int index)\r
 188         {               \r
 189                 executor_.begin_invoke([=]\r
 190                 {\r
 191                         layers_[index].pause();\r
 192                 }, task_priority::high_priority);\r
 193         }\r
 194 \r
 195         void play(int index)\r
 196         {               \r
 197                 executor_.begin_invoke([=]\r
 198                 {\r
 199                         layers_[index].play();\r
 200                 }, task_priority::high_priority);\r
 201         }\r
 202 \r
 203         void stop(int index)\r
 204         {               \r
 205                 executor_.begin_invoke([=]\r
 206                 {\r
 207                         layers_[index].stop();\r
 208                 }, task_priority::high_priority);\r
 209         }\r
 210 \r
 211         void clear(int index)\r
 212         {\r
 213                 executor_.begin_invoke([=]\r
 214                 {\r
 215                         layers_.erase(index);\r
 216                 }, task_priority::high_priority);\r
 217         }\r
 218                 \r
 219         void clear()\r
 220         {\r
 221                 executor_.begin_invoke([=]\r
 222                 {\r
 223                         layers_.clear();\r
 224                 }, task_priority::high_priority);\r
 225         }       \r
 226                 \r
 227         void swap_layers(stage& other)\r
 228         {\r
 229                 auto other_impl = other.impl_;\r
 230 \r
 231                 if(other_impl.get() == this)\r
 232                         return;\r
 233                 \r
 234                 auto func = [=]\r
 235                 {\r
 236                         auto layers                     = layers_ | boost::adaptors::map_values;\r
 237                         auto other_layers       = other_impl->layers_ | boost::adaptors::map_values;\r
 238 \r
 239                         BOOST_FOREACH(auto& layer, layers)\r
 240                                 layer.unsubscribe(event_subject_);\r
 241                         \r
 242                         BOOST_FOREACH(auto& layer, other_layers)\r
 243                                 layer.unsubscribe(event_subject_);\r
 244                         \r
 245                         std::swap(layers_, other_impl->layers_);\r
 246                                                 \r
 247                         BOOST_FOREACH(auto& layer, layers)\r
 248                                 layer.subscribe(event_subject_);\r
 249                         \r
 250                         BOOST_FOREACH(auto& layer, other_layers)\r
 251                                 layer.subscribe(event_subject_);\r
 252                 };              \r
 253                 executor_.begin_invoke([=]\r
 254                 {\r
 255                         other_impl->executor_.invoke(func, task_priority::high_priority);\r
 256                 }, task_priority::high_priority);\r
 257         }\r
 258 \r
 259         void swap_layer(int index, int other_index)\r
 260         {\r
 261                 executor_.begin_invoke([=]\r
 262                 {\r
 263                         std::swap(layers_[index], layers_[other_index]);\r
 264                 }, task_priority::high_priority);\r
 265         }\r
 266 \r
 267         void swap_layer(int index, int other_index, stage& other)\r
 268         {\r
 269                 auto other_impl = other.impl_;\r
 270 \r
 271                 if(other_impl.get() == this)\r
 272                         swap_layer(index, other_index);\r
 273                 else\r
 274                 {\r
 275                         auto func = [=]\r
 276                         {\r
 277                                 auto& my_layer          = get_layer(index);\r
 278                                 auto& other_layer       = other_impl->get_layer(other_index);\r
 279 \r
 280                                 my_layer.unsubscribe(event_subject_);\r
 281                                 other_layer.unsubscribe(other_impl->event_subject_);\r
 282 \r
 283                                 std::swap(my_layer, other_layer);\r
 284 \r
 285                                 my_layer.subscribe(event_subject_);\r
 286                                 other_layer.subscribe(other_impl->event_subject_);\r
 287                         };              \r
 288                         executor_.begin_invoke([=]\r
 289                         {\r
 290                                 other_impl->executor_.invoke(func, task_priority::high_priority);\r
 291                         }, task_priority::high_priority);\r
 292                 }\r
 293         }\r
 294                 \r
 295         boost::unique_future<spl::shared_ptr<frame_producer>> foreground(int index)\r
 296         {\r
 297                 return executor_.begin_invoke([=]\r
 298                 {\r
 299                         return layers_[index].foreground();\r
 300                 }, task_priority::high_priority);\r
 301         }\r
 302         \r
 303         boost::unique_future<spl::shared_ptr<frame_producer>> background(int index)\r
 304         {\r
 305                 return executor_.begin_invoke([=]\r
 306                 {\r
 307                         return layers_[index].background();\r
 308                 }, task_priority::high_priority);\r
 309         }\r
 310 \r
 311         boost::unique_future<boost::property_tree::wptree> info()\r
 312         {\r
 313                 return executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 314                 {\r
 315                         boost::property_tree::wptree info;\r
 316                         BOOST_FOREACH(auto& layer, layers_)                     \r
 317                                 info.add_child(L"layers.layer", layer.second.info())\r
 318                                         .add(L"index", layer.first);    \r
 319                         return info;\r
 320                 }, task_priority::high_priority);\r
 321         }\r
 322 \r
 323         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 324         {\r
 325                 return executor_.begin_invoke([=]\r
 326                 {\r
 327                         return layers_[index].info();\r
 328                 }, task_priority::high_priority);\r
 329         }               \r
 330 };\r
 331 \r
 332 stage::stage(spl::shared_ptr<diagnostics::graph> graph) : impl_(new impl(std::move(graph))){}\r
 333 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}\r
 334 void stage::apply_transform(int index, const std::function<core::frame_transform(core::frame_transform)>& transform, unsigned int mix_duration, const tweener& tween){impl_->apply_transform(index, transform, mix_duration, tween);}\r
 335 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 336 void stage::clear_transforms(){impl_->clear_transforms();}\r
 337 void stage::load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta){impl_->load(index, producer, auto_play_delta);}\r
 338 void stage::pause(int index){impl_->pause(index);}\r
 339 void stage::play(int index){impl_->play(index);}\r
 340 void stage::stop(int index){impl_->stop(index);}\r
 341 void stage::clear(int index){impl_->clear(index);}\r
 342 void stage::clear(){impl_->clear();}\r
 343 void stage::swap_layers(stage& other){impl_->swap_layers(other);}\r
 344 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 345 void stage::swap_layer(int index, int other_index, stage& other){impl_->swap_layer(index, other_index, other);}\r
 346 boost::unique_future<spl::shared_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 347 boost::unique_future<spl::shared_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 348 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 349 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 350 std::map<int, spl::shared_ptr<class draw_frame>> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}\r
 351 void stage::subscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_->subscribe(o);}\r
 352 void stage::unsubscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_->unsubscribe(o);}\r
 353 }}