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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43 #include <functional>
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47 namespace caspar { namespace core {
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49 struct stage::impl : public std::enable_shared_from_this<impl>
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51 spl::shared_ptr<diagnostics::graph> graph_;
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52 monitor::basic_subject event_subject_;
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53 std::map<int, layer> layers_;
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54 std::map<int, tweened_transform> tweens_;
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57 impl(spl::shared_ptr<diagnostics::graph> graph)
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58 : graph_(std::move(graph))
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59 , event_subject_("stage")
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60 , executor_(L"stage")
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62 graph_->set_color("produce-time", diagnostics::color(0.0f, 1.0f, 0.0f));
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65 std::map<int, draw_frame> operator()(const struct video_format_desc& format_desc)
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67 return executor_.invoke([=]() -> std::map<int, draw_frame>
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69 boost::timer frame_timer;
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71 std::map<int, class draw_frame> frames;
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75 std::vector<int> indices;
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77 BOOST_FOREACH(auto& layer, layers_)
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79 frames[layer.first] = draw_frame::empty();
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80 indices.push_back(layer.first);
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83 // WORKAROUND: Compiler doesn't seem to like lambda.
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84 tbb::parallel_for_each(indices.begin(), indices.end(), std::bind(&stage::impl::draw, this, std::placeholders::_1, std::ref(format_desc), std::ref(frames)));
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89 CASPAR_LOG_CURRENT_EXCEPTION();
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92 graph_->set_value("produce-time", frame_timer.elapsed()*format_desc.fps*0.5);
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93 event_subject_ << monitor::event("profiler/time") % frame_timer.elapsed() % (1.0/format_desc.fps);
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99 void draw(int index, const video_format_desc& format_desc, std::map<int, draw_frame>& frames)
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101 auto& layer = layers_[index];
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102 auto& tween = tweens_[index];
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103 auto transform = tween.fetch_and_tick(1);
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105 frame_producer::flags flags = frame_producer::flags::none;
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106 if(format_desc.field_mode != field_mode::progressive)
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108 flags |= std::abs(transform.image_transform.fill_scale[1] - 1.0) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;
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109 flags |= std::abs(transform.image_transform.fill_translation[1]) > 0.0001 ? frame_producer::flags::deinterlace : frame_producer::flags::none;
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112 if(transform.image_transform.is_key)
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113 flags |= frame_producer::flags::alpha_only;
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115 auto frame = layer.receive(flags, format_desc);
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117 auto frame1 = core::draw_frame(frame);
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118 frame1.transform() = transform;
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120 if(format_desc.field_mode != core::field_mode::progressive)
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122 auto frame2 = core::draw_frame(frame);
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123 frame2.transform() = tween.fetch_and_tick(1);
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124 frame1 = core::draw_frame::interlace(frame1, frame2, format_desc.field_mode);
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127 frames[index] = frame1;
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130 layer& get_layer(int index)
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132 auto it = layers_.find(index);
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133 if(it == std::end(layers_))
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135 it = layers_.insert(std::make_pair(index, layer(index))).first;
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136 it->second.subscribe(event_subject_);
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141 void apply_transforms(const std::vector<std::tuple<int, stage::transform_func_t, unsigned int, tweener>>& transforms)
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143 executor_.begin_invoke([=]
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145 BOOST_FOREACH(auto& transform, transforms)
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147 auto src = tweens_[std::get<0>(transform)].fetch();
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148 auto dst = std::get<1>(transform)(src);
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149 tweens_[std::get<0>(transform)] = tweened_transform(src, dst, std::get<2>(transform), std::get<3>(transform));
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151 }, task_priority::high_priority);
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154 void apply_transform(int index, const stage::transform_func_t& transform, unsigned int mix_duration, const tweener& tween)
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156 executor_.begin_invoke([=]
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158 auto src = tweens_[index].fetch();
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159 auto dst = transform(src);
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160 tweens_[index] = tweened_transform(src, dst, mix_duration, tween);
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161 }, task_priority::high_priority);
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164 void clear_transforms(int index)
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166 executor_.begin_invoke([=]
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168 tweens_.erase(index);
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169 }, task_priority::high_priority);
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172 void clear_transforms()
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174 executor_.begin_invoke([=]
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177 }, task_priority::high_priority);
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180 void load(int index, const spl::shared_ptr<frame_producer>& producer, const boost::optional<int32_t>& auto_play_delta)
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182 executor_.begin_invoke([=]
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184 get_layer(index).load(producer, auto_play_delta);
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185 }, task_priority::high_priority);
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188 void pause(int index)
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190 executor_.begin_invoke([=]
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192 layers_[index].pause();
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193 }, task_priority::high_priority);
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196 void play(int index)
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198 executor_.begin_invoke([=]
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200 layers_[index].play();
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201 }, task_priority::high_priority);
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204 void stop(int index)
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206 executor_.begin_invoke([=]
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208 layers_[index].stop();
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209 }, task_priority::high_priority);
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212 void clear(int index)
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214 executor_.begin_invoke([=]
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216 layers_.erase(index);
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217 }, task_priority::high_priority);
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222 executor_.begin_invoke([=]
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225 }, task_priority::high_priority);
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228 void swap_layers(stage& other)
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230 auto other_impl = other.impl_;
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232 if(other_impl.get() == this)
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237 auto layers = layers_ | boost::adaptors::map_values;
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238 auto other_layers = other_impl->layers_ | boost::adaptors::map_values;
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240 BOOST_FOREACH(auto& layer, layers)
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241 layer.unsubscribe(event_subject_);
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243 BOOST_FOREACH(auto& layer, other_layers)
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244 layer.unsubscribe(event_subject_);
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246 std::swap(layers_, other_impl->layers_);
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248 BOOST_FOREACH(auto& layer, layers)
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249 layer.subscribe(event_subject_);
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251 BOOST_FOREACH(auto& layer, other_layers)
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252 layer.subscribe(event_subject_);
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254 executor_.begin_invoke([=]
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256 other_impl->executor_.invoke(func, task_priority::high_priority);
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257 }, task_priority::high_priority);
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260 void swap_layer(int index, int other_index)
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262 executor_.begin_invoke([=]
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264 std::swap(layers_[index], layers_[other_index]);
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265 }, task_priority::high_priority);
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268 void swap_layer(int index, int other_index, stage& other)
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270 auto other_impl = other.impl_;
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272 if(other_impl.get() == this)
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273 swap_layer(index, other_index);
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278 auto& my_layer = get_layer(index);
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279 auto& other_layer = other_impl->get_layer(other_index);
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281 my_layer.unsubscribe(event_subject_);
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282 other_layer.unsubscribe(other_impl->event_subject_);
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284 std::swap(my_layer, other_layer);
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286 my_layer.subscribe(event_subject_);
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287 other_layer.subscribe(other_impl->event_subject_);
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289 executor_.begin_invoke([=]
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291 other_impl->executor_.invoke(func, task_priority::high_priority);
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292 }, task_priority::high_priority);
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296 boost::unique_future<spl::shared_ptr<frame_producer>> foreground(int index)
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298 return executor_.begin_invoke([=]
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300 return layers_[index].foreground();
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301 }, task_priority::high_priority);
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304 boost::unique_future<spl::shared_ptr<frame_producer>> background(int index)
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306 return executor_.begin_invoke([=]
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308 return layers_[index].background();
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309 }, task_priority::high_priority);
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312 boost::unique_future<boost::property_tree::wptree> info()
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314 return executor_.begin_invoke([this]() -> boost::property_tree::wptree
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316 boost::property_tree::wptree info;
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317 BOOST_FOREACH(auto& layer, layers_)
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318 info.add_child(L"layers.layer", layer.second.info())
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319 .add(L"index", layer.first);
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321 }, task_priority::high_priority);
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324 boost::unique_future<boost::property_tree::wptree> info(int index)
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326 return executor_.begin_invoke([=]
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328 return layers_[index].info();
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329 }, task_priority::high_priority);
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333 stage::stage(spl::shared_ptr<diagnostics::graph> graph) : impl_(new impl(std::move(graph))){}
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334 void stage::apply_transforms(const std::vector<stage::transform_tuple_t>& transforms){impl_->apply_transforms(transforms);}
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335 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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336 void stage::clear_transforms(int index){impl_->clear_transforms(index);}
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337 void stage::clear_transforms(){impl_->clear_transforms();}
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338 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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339 void stage::pause(int index){impl_->pause(index);}
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340 void stage::play(int index){impl_->play(index);}
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341 void stage::stop(int index){impl_->stop(index);}
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342 void stage::clear(int index){impl_->clear(index);}
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343 void stage::clear(){impl_->clear();}
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344 void stage::swap_layers(stage& other){impl_->swap_layers(other);}
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345 void stage::swap_layer(int index, int other_index){impl_->swap_layer(index, other_index);}
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346 void stage::swap_layer(int index, int other_index, stage& other){impl_->swap_layer(index, other_index, other);}
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347 boost::unique_future<spl::shared_ptr<frame_producer>> stage::foreground(int index) {return impl_->foreground(index);}
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348 boost::unique_future<spl::shared_ptr<frame_producer>> stage::background(int index) {return impl_->background(index);}
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349 boost::unique_future<boost::property_tree::wptree> stage::info() const{return impl_->info();}
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350 boost::unique_future<boost::property_tree::wptree> stage::info(int index) const{return impl_->info(index);}
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351 std::map<int, class draw_frame> stage::operator()(const video_format_desc& format_desc){return (*impl_)(format_desc);}
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352 void stage::subscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.subscribe(o);}
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353 void stage::unsubscribe(const monitor::observable::observer_ptr& o) {impl_->event_subject_.unsubscribe(o);}
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