2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG (www.casparcg.com).
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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19 * Author: Robert Nagy, ronag89@gmail.com
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22 #include "../StdAfx.h"
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28 #include "../frame/draw_frame.h"
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29 #include "../frame/frame_factory.h"
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31 #include <common/concurrency/executor.h>
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32 #include <common/diagnostics/graph.h>
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34 #include <core/frame/frame_transform.h>
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36 #include <boost/foreach.hpp>
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37 #include <boost/timer.hpp>
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38 #include <boost/property_tree/ptree.hpp>
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39 #include <boost/range/algorithm_ext.hpp>
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41 #include <tbb/parallel_for_each.h>
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46 namespace caspar { namespace core {
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48 struct stage::impl : public std::enable_shared_from_this<impl>
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50 std::map<int, layer> layers_;
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51 std::map<int, tweened_transform> tweens_;
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54 impl() : executor_(L"stage")
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58 std::map<int, spl::shared_ptr<draw_frame>> operator()(const struct video_format_desc& format_desc)
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60 return executor_.invoke([=]() -> std::map<int, spl::shared_ptr<draw_frame>>
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62 std::map<int, spl::shared_ptr<class draw_frame>> frames;
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66 BOOST_FOREACH(auto& layer, layers_)
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67 frames[layer.first] = draw_frame::empty();
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69 auto format_desc2 = format_desc;
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71 tbb::parallel_for_each(layers_.begin(), layers_.end(), [&](std::map<int, layer>::value_type& layer)
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73 auto& tween = tweens_[layer.first];
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74 auto transform = tween.fetch_and_tick(1);
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76 frame_producer::flags flags = frame_producer::flags::none;
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77 if(format_desc2.field_mode != field_mode::progressive)
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79 flags |= std::abs(transform.fill_scale[1] - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;
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80 flags |= std::abs(transform.fill_translation[1]) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;
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83 if(transform.is_key)
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84 flags |= frame_producer::flags::alpha_only;
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86 auto frame = layer.second.receive(flags);
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88 auto frame1 = spl::make_shared<core::draw_frame>(frame);
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89 frame1->get_frame_transform() = transform;
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91 if(format_desc2.field_mode != core::field_mode::progressive)
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93 auto frame2 = spl::make_shared<core::draw_frame>(frame);
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94 frame2->get_frame_transform() = tween.fetch_and_tick(1);
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95 frame1 = core::draw_frame::interlace(frame1, frame2, format_desc2.field_mode);
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98 frames[layer.first] = frame1;
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104 CASPAR_LOG_CURRENT_EXCEPTION();
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111 void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, tweener>>& transforms)
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113 executor_.begin_invoke([=]
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115 BOOST_FOREACH(auto& transform, transforms)
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117 auto src = tweens_[std::get<0>(transform)].fetch();
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118 auto dst = std::get<1>(transform)(src);
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119 tweens_[std::get<0>(transform)] = tweened_transform(src, dst, std::get<2>(transform), std::get<3>(transform));
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121 }, task_priority::high_priority);
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124 void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const tweener& tween)
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126 executor_.begin_invoke([=]
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128 auto src = tweens_[index].fetch();
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129 auto dst = transform(src);
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130 tweens_[index] = tweened_transform(src, dst, mix_duration, tween);
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131 }, task_priority::high_priority);
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134 void clear_transforms(int index)
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136 executor_.begin_invoke([=]
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138 tweens_.erase(index);
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139 }, task_priority::high_priority);
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142 void clear_transforms()
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144 executor_.begin_invoke([=]
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147 }, task_priority::high_priority);
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150 void load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta)
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152 executor_.begin_invoke([=]
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154 layers_[index].load(producer, auto_play_delta);
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155 }, task_priority::high_priority);
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158 void pause(int index)
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160 executor_.begin_invoke([=]
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162 layers_[index].pause();
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163 }, task_priority::high_priority);
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166 void play(int index)
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168 executor_.begin_invoke([=]
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170 layers_[index].play();
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171 }, task_priority::high_priority);
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174 void stop(int index)
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176 executor_.begin_invoke([=]
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178 layers_[index].stop();
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179 }, task_priority::high_priority);
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182 void clear(int index)
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184 executor_.begin_invoke([=]
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186 layers_.erase(index);
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187 }, task_priority::high_priority);
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192 executor_.begin_invoke([=]
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195 }, task_priority::high_priority);
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198 void swap_layers(const spl::shared_ptr<stage>& other)
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200 if(other->impl_.get() == this)
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205 std::swap(layers_, other->impl_->layers_);
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207 executor_.begin_invoke([=]
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209 other->impl_->executor_.invoke(func, task_priority::high_priority);
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210 }, task_priority::high_priority);
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213 void swap_layer(int index, int other_index)
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215 executor_.begin_invoke([=]
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217 std::swap(layers_[index], layers_[other_index]);
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218 }, task_priority::high_priority);
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221 void swap_layer(int index, int other_index, const spl::shared_ptr<stage>& other)
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223 if(other->impl_.get() == this)
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224 swap_layer(index, other_index);
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229 std::swap(layers_[index], other->impl_->layers_[other_index]);
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231 executor_.begin_invoke([=]
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233 other->impl_->executor_.invoke(func, task_priority::high_priority);
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234 }, task_priority::high_priority);
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238 boost::unique_future<spl::shared_ptr<frame_producer>> foreground(int index)
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240 return executor_.begin_invoke([=]
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242 return layers_[index].foreground();
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243 }, task_priority::high_priority);
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246 boost::unique_future<spl::shared_ptr<frame_producer>> background(int index)
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248 return executor_.begin_invoke([=]
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250 return layers_[index].background();
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251 }, task_priority::high_priority);
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254 boost::unique_future<boost::property_tree::wptree> info()
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256 return executor_.begin_invoke([this]() -> boost::property_tree::wptree
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258 boost::property_tree::wptree info;
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259 BOOST_FOREACH(auto& layer, layers_)
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260 info.add_child(L"layers.layer", layer.second.info())
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261 .add(L"index", layer.first);
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263 }, task_priority::high_priority);
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266 boost::unique_future<boost::property_tree::wptree> info(int index)
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268 return executor_.begin_invoke([=]
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270 return layers_[index].info();
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271 }, task_priority::high_priority);
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275 stage::stage() : impl_(new impl()){}
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276 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}
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277 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);}
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278 void stage::clear_transforms(int index){impl_->clear_transforms(index);}
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279 void stage::clear_transforms(){impl_->clear_transforms();}
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280 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);}
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281 void stage::pause(int index){impl_->pause(index);}
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282 void stage::play(int index){impl_->play(index);}
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283 void stage::stop(int index){impl_->stop(index);}
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284 void stage::clear(int index){impl_->clear(index);}
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285 void stage::clear(){impl_->clear();}
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286 void stage::swap_layers(const spl::shared_ptr<stage>& other){impl_->swap_layers(other);}
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287 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}
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288 void stage::swap_layer(int index, int other_index, const spl::shared_ptr<stage>& other){impl_->swap_layer(index, other_index, other);}
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289 boost::unique_future<spl::shared_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}
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290 boost::unique_future<spl::shared_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}
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291 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}
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292 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}
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293 std::map<int, spl::shared_ptr<class draw_frame>> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}
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