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 <map>\r
  44 #include <vector>\r
  45 \r
  46 namespace caspar { namespace core {\r
  47         \r
  48 template<typename T>\r
  49 class tweened_transform\r
  50 {\r
  51         T source_;\r
  52         T dest_;\r
  53         int duration_;\r
  54         int time_;\r
  55         tweener_t tweener_;\r
  56 public: \r
  57         tweened_transform()\r
  58                 : duration_(0)\r
  59                 , time_(0)\r
  60                 , tweener_(get_tweener(L"linear")){}\r
  61         tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")\r
  62                 : source_(source)\r
  63                 , dest_(dest)\r
  64                 , duration_(duration)\r
  65                 , time_(0)\r
  66                 , tweener_(get_tweener(tween)){}\r
  67         \r
  68         T fetch()\r
  69         {\r
  70                 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);\r
  71         }\r
  72 \r
  73         T fetch_and_tick(int num)\r
  74         {                                               \r
  75                 time_ = std::min(time_+num, duration_);\r
  76                 return fetch();\r
  77         }\r
  78 };\r
  79 \r
  80 struct stage::impl : public std::enable_shared_from_this<impl>\r
  81                                    , boost::noncopyable\r
  82 {                       \r
  83         std::map<int, layer>                                                                    layers_;        \r
  84         std::map<int, tweened_transform<core::frame_transform>> transforms_;    \r
  85 \r
  86         executor                                                                                                executor_;\r
  87 public:\r
  88         impl()  \r
  89                 : executor_(L"stage")\r
  90         {\r
  91         }\r
  92                 \r
  93         std::map<int, safe_ptr<draw_frame>> operator()(const struct video_format_desc& format_desc)\r
  94         {               \r
  95                 return executor_.invoke([=]() -> std::map<int, safe_ptr<draw_frame>>\r
  96                 {\r
  97                         std::map<int, safe_ptr<class draw_frame>> result;\r
  98 \r
  99                         try\r
 100                         {                                       \r
 101                                 BOOST_FOREACH(auto& layer, layers_)                     \r
 102                                         result[layer.first] = draw_frame::empty();      \r
 103 \r
 104                                 auto format_desc2 = format_desc;\r
 105 \r
 106                                 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer)\r
 107                                 {\r
 108                                         auto transform = transforms_[layer.first].fetch_and_tick(1);\r
 109 \r
 110                                         int flags = frame_producer::flags::none;\r
 111                                         if(format_desc2.field_mode != field_mode::progressive)\r
 112                                         {\r
 113                                                 flags |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
 114                                                 flags |= std::abs(transform.fill_translation[1])  > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
 115                                         }\r
 116 \r
 117                                         if(transform.is_key)\r
 118                                                 flags |= frame_producer::flags::alpha_only;\r
 119 \r
 120                                         auto frame = layer.second.receive(flags);       \r
 121                                 \r
 122                                         auto frame1 = make_safe<core::draw_frame>(frame);\r
 123                                         frame1->get_frame_transform() = transform;\r
 124 \r
 125                                         if(format_desc2.field_mode != core::field_mode::progressive)\r
 126                                         {                               \r
 127                                                 auto frame2 = make_safe<core::draw_frame>(frame);\r
 128                                                 frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);\r
 129                                                 frame1 = core::draw_frame::interlace(frame1, frame2, format_desc2.field_mode);\r
 130                                         }\r
 131 \r
 132                                         result[layer.first] = frame1;\r
 133                                 });             \r
 134                         }\r
 135                         catch(...)\r
 136                         {\r
 137                                 layers_.clear();\r
 138                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
 139                         }       \r
 140 \r
 141                         return result;\r
 142                 });\r
 143         }\r
 144                 \r
 145         void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, std::wstring>>& transforms)\r
 146         {\r
 147                 executor_.begin_invoke([=]\r
 148                 {\r
 149                         BOOST_FOREACH(auto& transform, transforms)\r
 150                         {\r
 151                                 auto src = transforms_[std::get<0>(transform)].fetch();\r
 152                                 auto dst = std::get<1>(transform)(src);\r
 153                                 transforms_[std::get<0>(transform)] = tweened_transform<frame_transform>(src, dst, std::get<2>(transform), std::get<3>(transform));\r
 154                         }\r
 155                 }, high_priority);\r
 156         }\r
 157                                                 \r
 158         void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const std::wstring& tween)\r
 159         {\r
 160                 executor_.begin_invoke([=]\r
 161                 {\r
 162                         auto src = transforms_[index].fetch();\r
 163                         auto dst = transform(src);\r
 164                         transforms_[index] = tweened_transform<frame_transform>(src, dst, mix_duration, tween);\r
 165                 }, high_priority);\r
 166         }\r
 167 \r
 168         void clear_transforms(int index)\r
 169         {\r
 170                 executor_.begin_invoke([=]\r
 171                 {\r
 172                         transforms_.erase(index);\r
 173                 }, high_priority);\r
 174         }\r
 175 \r
 176         void clear_transforms()\r
 177         {\r
 178                 executor_.begin_invoke([=]\r
 179                 {\r
 180                         transforms_.clear();\r
 181                 }, high_priority);\r
 182         }\r
 183                 \r
 184         void load(int index, const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
 185         {\r
 186                 executor_.begin_invoke([=]\r
 187                 {\r
 188                         layers_[index].load(producer, preview, auto_play_delta);\r
 189                 }, high_priority);\r
 190         }\r
 191 \r
 192         void pause(int index)\r
 193         {               \r
 194                 executor_.begin_invoke([=]\r
 195                 {\r
 196                         layers_[index].pause();\r
 197                 }, high_priority);\r
 198         }\r
 199 \r
 200         void play(int index)\r
 201         {               \r
 202                 executor_.begin_invoke([=]\r
 203                 {\r
 204                         layers_[index].play();\r
 205                 }, high_priority);\r
 206         }\r
 207 \r
 208         void stop(int index)\r
 209         {               \r
 210                 executor_.begin_invoke([=]\r
 211                 {\r
 212                         layers_[index].stop();\r
 213                 }, high_priority);\r
 214         }\r
 215 \r
 216         void clear(int index)\r
 217         {\r
 218                 executor_.begin_invoke([=]\r
 219                 {\r
 220                         layers_.erase(index);\r
 221                 }, high_priority);\r
 222         }\r
 223                 \r
 224         void clear()\r
 225         {\r
 226                 executor_.begin_invoke([=]\r
 227                 {\r
 228                         layers_.clear();\r
 229                 }, high_priority);\r
 230         }       \r
 231         \r
 232         boost::unique_future<std::wstring> call(int index, bool foreground, const std::wstring& param)\r
 233         {\r
 234                 return std::move(*executor_.invoke([=]\r
 235                 {\r
 236                         return std::make_shared<boost::unique_future<std::wstring>>(std::move(layers_[index].call(foreground, param)));\r
 237                 }, high_priority));\r
 238         }\r
 239         \r
 240         void swap_layers(const safe_ptr<stage>& other)\r
 241         {\r
 242                 if(other->impl_.get() == this)\r
 243                         return;\r
 244                 \r
 245                 auto func = [=]\r
 246                 {\r
 247                         std::swap(layers_, other->impl_->layers_);\r
 248                 };              \r
 249                 executor_.begin_invoke([=]\r
 250                 {\r
 251                         other->impl_->executor_.invoke(func, high_priority);\r
 252                 }, high_priority);\r
 253         }\r
 254 \r
 255         void swap_layer(int index, int other_index)\r
 256         {\r
 257                 executor_.begin_invoke([=]\r
 258                 {\r
 259                         std::swap(layers_[index], layers_[other_index]);\r
 260                 }, high_priority);\r
 261         }\r
 262 \r
 263         void swap_layer(int index, int other_index, const safe_ptr<stage>& other)\r
 264         {\r
 265                 if(other->impl_.get() == this)\r
 266                         swap_layer(index, other_index);\r
 267                 else\r
 268                 {\r
 269                         auto func = [=]\r
 270                         {\r
 271                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 272                         };              \r
 273                         executor_.begin_invoke([=]\r
 274                         {\r
 275                                 other->impl_->executor_.invoke(func, high_priority);\r
 276                         }, high_priority);\r
 277                 }\r
 278         }\r
 279                 \r
 280         boost::unique_future<safe_ptr<frame_producer>> foreground(int index)\r
 281         {\r
 282                 return executor_.begin_invoke([=]\r
 283                 {\r
 284                         return layers_[index].foreground();\r
 285                 }, high_priority);\r
 286         }\r
 287         \r
 288         boost::unique_future<safe_ptr<frame_producer>> background(int index)\r
 289         {\r
 290                 return executor_.begin_invoke([=]\r
 291                 {\r
 292                         return layers_[index].background();\r
 293                 }, high_priority);\r
 294         }\r
 295 \r
 296         boost::unique_future<boost::property_tree::wptree> info()\r
 297         {\r
 298                 return std::move(executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 299                 {\r
 300                         boost::property_tree::wptree info;\r
 301                         BOOST_FOREACH(auto& layer, layers_)                     \r
 302                                 info.add_child(L"layers.layer", layer.second.info())\r
 303                                         .add(L"index", layer.first);    \r
 304                         return info;\r
 305                 }, high_priority));\r
 306         }\r
 307 \r
 308         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 309         {\r
 310                 return std::move(executor_.begin_invoke([=]() -> boost::property_tree::wptree\r
 311                 {\r
 312                         return layers_[index].info();\r
 313                 }, high_priority));\r
 314         }               \r
 315 };\r
 316 \r
 317 stage::stage() : impl_(new impl()){}\r
 318 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}\r
 319 void stage::apply_transform(int index, const std::function<core::frame_transform(core::frame_transform)>& transform, unsigned int mix_duration, const std::wstring& tween){impl_->apply_transform(index, transform, mix_duration, tween);}\r
 320 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 321 void stage::clear_transforms(){impl_->clear_transforms();}\r
 322 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
 323 void stage::pause(int index){impl_->pause(index);}\r
 324 void stage::play(int index){impl_->play(index);}\r
 325 void stage::stop(int index){impl_->stop(index);}\r
 326 void stage::clear(int index){impl_->clear(index);}\r
 327 void stage::clear(){impl_->clear();}\r
 328 void stage::swap_layers(const safe_ptr<stage>& other){impl_->swap_layers(other);}\r
 329 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 330 void stage::swap_layer(int index, int other_index, const safe_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 331 boost::unique_future<safe_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 332 boost::unique_future<safe_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 333 boost::unique_future<std::wstring> stage::call(int index, bool foreground, const std::wstring& param){return impl_->call(index, foreground, param);}\r
 334 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 335 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 336 std::map<int, safe_ptr<class draw_frame>> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}\r
 337 }}