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 struct stage::impl : public std::enable_shared_from_this<impl>\r
  49 {                       \r
  50         std::map<int, layer>                            layers_;        \r
  51         std::map<int, tweened_transform>        transforms_;    \r
  52         executor                                                        executor_;\r
  53 public:\r
  54         impl() : executor_(L"stage")\r
  55         {\r
  56         }\r
  57                 \r
  58         std::map<int, spl::shared_ptr<draw_frame>> operator()(const struct video_format_desc& format_desc)\r
  59         {               \r
  60                 return executor_.invoke([=]() -> std::map<int, spl::shared_ptr<draw_frame>>\r
  61                 {\r
  62                         std::map<int, spl::shared_ptr<class draw_frame>> frames;\r
  63 \r
  64                         try\r
  65                         {                                       \r
  66                                 BOOST_FOREACH(auto& layer, layers_)                     \r
  67                                         frames[layer.first] = draw_frame::empty();      \r
  68 \r
  69                                 auto format_desc2 = format_desc;\r
  70 \r
  71                                 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer)\r
  72                                 {\r
  73                                         auto transform = transforms_[layer.first].fetch_and_tick(1);\r
  74 \r
  75                                         frame_producer::flags flags = frame_producer::flags::none;\r
  76                                         if(format_desc2.field_mode != field_mode::progressive)\r
  77                                         {\r
  78                                                 flags |= std::abs(transform.fill_scale[1]  - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
  79                                                 flags |= std::abs(transform.fill_translation[1])  > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;\r
  80                                         }\r
  81 \r
  82                                         if(transform.is_key)\r
  83                                                 flags |= frame_producer::flags::alpha_only;\r
  84 \r
  85                                         auto frame = layer.second.receive(flags);       \r
  86                                 \r
  87                                         auto frame1 = spl::make_shared<core::draw_frame>(frame);\r
  88                                         frame1->get_frame_transform() = transform;\r
  89 \r
  90                                         if(format_desc2.field_mode != core::field_mode::progressive)\r
  91                                         {                               \r
  92                                                 auto frame2 = spl::make_shared<core::draw_frame>(frame);\r
  93                                                 frame2->get_frame_transform() = transforms_[layer.first].fetch_and_tick(1);\r
  94                                                 frame1 = core::draw_frame::interlace(frame1, frame2, format_desc2.field_mode);\r
  95                                         }\r
  96 \r
  97                                         frames[layer.first] = frame1;\r
  98                                 });             \r
  99                         }\r
 100                         catch(...)\r
 101                         {\r
 102                                 layers_.clear();\r
 103                                 CASPAR_LOG_CURRENT_EXCEPTION();\r
 104                         }       \r
 105 \r
 106                         return frames;\r
 107                 });\r
 108         }\r
 109                 \r
 110         void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, tweener>>& transforms)\r
 111         {\r
 112                 executor_.begin_invoke([=]\r
 113                 {\r
 114                         BOOST_FOREACH(auto& transform, transforms)\r
 115                         {\r
 116                                 auto src = transforms_[std::get<0>(transform)].fetch();\r
 117                                 auto dst = std::get<1>(transform)(src);\r
 118                                 transforms_[std::get<0>(transform)] = tweened_transform(src, dst, std::get<2>(transform), std::get<3>(transform));\r
 119                         }\r
 120                 }, task_priority::high_priority);\r
 121         }\r
 122                                                 \r
 123         void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const tweener& tween)\r
 124         {\r
 125                 executor_.begin_invoke([=]\r
 126                 {\r
 127                         auto src = transforms_[index].fetch();\r
 128                         auto dst = transform(src);\r
 129                         transforms_[index] = tweened_transform(src, dst, mix_duration, tween);\r
 130                 }, task_priority::high_priority);\r
 131         }\r
 132 \r
 133         void clear_transforms(int index)\r
 134         {\r
 135                 executor_.begin_invoke([=]\r
 136                 {\r
 137                         transforms_.erase(index);\r
 138                 }, task_priority::high_priority);\r
 139         }\r
 140 \r
 141         void clear_transforms()\r
 142         {\r
 143                 executor_.begin_invoke([=]\r
 144                 {\r
 145                         transforms_.clear();\r
 146                 }, task_priority::high_priority);\r
 147         }\r
 148                 \r
 149         void load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta)\r
 150         {\r
 151                 executor_.begin_invoke([=]\r
 152                 {\r
 153                         layers_[index].load(producer, auto_play_delta);\r
 154                 }, task_priority::high_priority);\r
 155         }\r
 156 \r
 157         void pause(int index)\r
 158         {               \r
 159                 executor_.begin_invoke([=]\r
 160                 {\r
 161                         layers_[index].pause();\r
 162                 }, task_priority::high_priority);\r
 163         }\r
 164 \r
 165         void play(int index)\r
 166         {               \r
 167                 executor_.begin_invoke([=]\r
 168                 {\r
 169                         layers_[index].play();\r
 170                 }, task_priority::high_priority);\r
 171         }\r
 172 \r
 173         void stop(int index)\r
 174         {               \r
 175                 executor_.begin_invoke([=]\r
 176                 {\r
 177                         layers_[index].stop();\r
 178                 }, task_priority::high_priority);\r
 179         }\r
 180 \r
 181         void clear(int index)\r
 182         {\r
 183                 executor_.begin_invoke([=]\r
 184                 {\r
 185                         layers_.erase(index);\r
 186                 }, task_priority::high_priority);\r
 187         }\r
 188                 \r
 189         void clear()\r
 190         {\r
 191                 executor_.begin_invoke([=]\r
 192                 {\r
 193                         layers_.clear();\r
 194                 }, task_priority::high_priority);\r
 195         }       \r
 196                 \r
 197         void swap_layers(const spl::shared_ptr<stage>& other)\r
 198         {\r
 199                 if(other->impl_.get() == this)\r
 200                         return;\r
 201                 \r
 202                 auto func = [=]\r
 203                 {\r
 204                         std::swap(layers_, other->impl_->layers_);\r
 205                 };              \r
 206                 executor_.begin_invoke([=]\r
 207                 {\r
 208                         other->impl_->executor_.invoke(func, task_priority::high_priority);\r
 209                 }, task_priority::high_priority);\r
 210         }\r
 211 \r
 212         void swap_layer(int index, int other_index)\r
 213         {\r
 214                 executor_.begin_invoke([=]\r
 215                 {\r
 216                         std::swap(layers_[index], layers_[other_index]);\r
 217                 }, task_priority::high_priority);\r
 218         }\r
 219 \r
 220         void swap_layer(int index, int other_index, const spl::shared_ptr<stage>& other)\r
 221         {\r
 222                 if(other->impl_.get() == this)\r
 223                         swap_layer(index, other_index);\r
 224                 else\r
 225                 {\r
 226                         auto func = [=]\r
 227                         {\r
 228                                 std::swap(layers_[index], other->impl_->layers_[other_index]);\r
 229                         };              \r
 230                         executor_.begin_invoke([=]\r
 231                         {\r
 232                                 other->impl_->executor_.invoke(func, task_priority::high_priority);\r
 233                         }, task_priority::high_priority);\r
 234                 }\r
 235         }\r
 236                 \r
 237         boost::unique_future<spl::shared_ptr<frame_producer>> foreground(int index)\r
 238         {\r
 239                 return executor_.begin_invoke([=]\r
 240                 {\r
 241                         return layers_[index].foreground();\r
 242                 }, task_priority::high_priority);\r
 243         }\r
 244         \r
 245         boost::unique_future<spl::shared_ptr<frame_producer>> background(int index)\r
 246         {\r
 247                 return executor_.begin_invoke([=]\r
 248                 {\r
 249                         return layers_[index].background();\r
 250                 }, task_priority::high_priority);\r
 251         }\r
 252 \r
 253         boost::unique_future<boost::property_tree::wptree> info()\r
 254         {\r
 255                 return executor_.begin_invoke([this]() -> boost::property_tree::wptree\r
 256                 {\r
 257                         boost::property_tree::wptree info;\r
 258                         BOOST_FOREACH(auto& layer, layers_)                     \r
 259                                 info.add_child(L"layers.layer", layer.second.info())\r
 260                                         .add(L"index", layer.first);    \r
 261                         return info;\r
 262                 }, task_priority::high_priority);\r
 263         }\r
 264 \r
 265         boost::unique_future<boost::property_tree::wptree> info(int index)\r
 266         {\r
 267                 return executor_.begin_invoke([=]\r
 268                 {\r
 269                         return layers_[index].info();\r
 270                 }, task_priority::high_priority);\r
 271         }               \r
 272 };\r
 273 \r
 274 stage::stage() : impl_(new impl()){}\r
 275 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}\r
 276 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
 277 void stage::clear_transforms(int index){impl_->clear_transforms(index);}\r
 278 void stage::clear_transforms(){impl_->clear_transforms();}\r
 279 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
 280 void stage::pause(int index){impl_->pause(index);}\r
 281 void stage::play(int index){impl_->play(index);}\r
 282 void stage::stop(int index){impl_->stop(index);}\r
 283 void stage::clear(int index){impl_->clear(index);}\r
 284 void stage::clear(){impl_->clear();}\r
 285 void stage::swap_layers(const spl::shared_ptr<stage>& other){impl_->swap_layers(other);}\r
 286 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}\r
 287 void stage::swap_layer(int index, int other_index, const spl::shared_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}\r
 288 boost::unique_future<spl::shared_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}\r
 289 boost::unique_future<spl::shared_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}\r
 290 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}\r
 291 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}\r
 292 std::map<int, spl::shared_ptr<class draw_frame>> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}\r
 293 }}