2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Helge Norberg, helge.norberg@svt.se
22 #include "../../stdafx.h"
24 #include <common/future.h>
25 #include <boost/algorithm/string/split.hpp>
26 #include <boost/algorithm/string.hpp>
28 #include "scene_producer.h"
30 #include "../../frame/draw_frame.h"
31 #include "../../interaction/interaction_aggregator.h"
33 namespace caspar { namespace core { namespace scene {
35 layer::layer(const spl::shared_ptr<frame_producer>& producer)
39 layer::layer(const std::wstring& name, const spl::shared_ptr<frame_producer>& producer)
40 : name(name), producer(producer)
44 adjustments::adjustments()
49 struct scene_producer::impl
51 constraints pixel_constraints_;
52 std::list<layer> layers_;
53 interaction_aggregator aggregator_;
54 binding<int64_t> frame_number_;
55 std::map<std::wstring, std::shared_ptr<parameter_holder_base>> parameters_;
57 impl(int width, int height)
58 : pixel_constraints_(width, height)
59 , aggregator_([=] (double x, double y) { return collission_detect(x, y); })
64 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
66 layer& layer = create_layer(producer, x, y);
73 const spl::shared_ptr<frame_producer>& producer, int x, int y)
75 layer& layer = create_layer(producer);
77 layer.position.x.set(x);
78 layer.position.y.set(y);
83 layer& create_layer(const spl::shared_ptr<frame_producer>& producer)
85 layer layer(producer);
87 layers_.push_back(layer);
89 return layers_.back();
93 const std::wstring& name,
94 const std::shared_ptr<parameter_holder_base>& param)
96 parameters_.insert(std::make_pair(boost::to_lower_copy(name), param));
99 binding<int64_t> frame()
101 return frame_number_;
104 frame_transform get_transform(const layer& layer) const
106 frame_transform transform;
108 auto& pos = transform.image_transform.fill_translation;
109 auto& scale = transform.image_transform.fill_scale;
111 pos[0] = static_cast<double>(layer.position.x.get()) / static_cast<double>(pixel_constraints_.width.get());
112 pos[1] = static_cast<double>(layer.position.y.get()) / static_cast<double>(pixel_constraints_.height.get());
113 scale[0] = static_cast<double>(layer.producer.get()->pixel_constraints().width.get())
114 / static_cast<double>(pixel_constraints_.width.get());
115 scale[1] = static_cast<double>(layer.producer.get()->pixel_constraints().height.get())
116 / static_cast<double>(pixel_constraints_.height.get());
118 transform.image_transform.opacity = layer.adjustments.opacity.get();
119 transform.image_transform.is_key = layer.is_key.get();
124 draw_frame render_frame()
126 std::vector<draw_frame> frames;
128 BOOST_FOREACH(auto& layer, layers_)
130 if (layer.hidden.get())
133 draw_frame frame(layer.producer.get()->receive());
134 frame.transform() = get_transform(layer);;
135 frames.push_back(frame);
140 return draw_frame(frames);
143 void on_interaction(const interaction_event::ptr& event)
145 aggregator_.translate_and_send(event);
148 bool collides(double x, double y) const
150 return collission_detect(x, y);
153 boost::optional<interaction_target> collission_detect(double x, double y) const
155 BOOST_FOREACH(auto& layer, layers_ | boost::adaptors::reversed)
157 if (layer.hidden.get())
160 auto transform = get_transform(layer);
161 auto translated = translate(x, y, transform);
163 if (translated.first >= 0.0
164 && translated.first <= 1.0
165 && translated.second >= 0.0
166 && translated.second <= 1.0
167 && layer.producer.get()->collides(translated.first, translated.second))
169 return std::make_pair(transform, layer.producer.get().get());
173 return boost::optional<interaction_target>();
176 boost::unique_future<std::wstring> call(const std::vector<std::wstring>& params)
178 for (int i = 0; i + 1 < params.size(); i += 2)
180 auto found = parameters_.find(boost::to_lower_copy(params[i]));
182 if (found != parameters_.end())
183 found->second->set(params[i + 1]);
186 return wrap_as_future(std::wstring(L""));
189 std::wstring print() const
194 std::wstring name() const
199 boost::property_tree::wptree info() const
201 boost::property_tree::wptree info;
202 info.add(L"type", L"scene");
206 void subscribe(const monitor::observable::observer_ptr& o)
210 void unsubscribe(const monitor::observable::observer_ptr& o)
215 scene_producer::scene_producer(int width, int height)
216 : impl_(new impl(width, height))
220 scene_producer::~scene_producer()
224 layer& scene_producer::create_layer(
225 const spl::shared_ptr<frame_producer>& producer, int x, int y)
227 return impl_->create_layer(producer, x, y);
230 layer& scene_producer::create_layer(
231 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name)
233 return impl_->create_layer(producer, x, y, name);
236 layer& scene_producer::create_layer(
237 const spl::shared_ptr<frame_producer>& producer)
239 return impl_->create_layer(producer);
242 binding<int64_t> scene_producer::frame()
244 return impl_->frame();
247 draw_frame scene_producer::receive_impl()
249 return impl_->render_frame();
252 constraints& scene_producer::pixel_constraints() { return impl_->pixel_constraints_; }
254 void scene_producer::on_interaction(const interaction_event::ptr& event)
256 impl_->on_interaction(event);
259 bool scene_producer::collides(double x, double y) const
261 return impl_->collides(x, y);
264 std::wstring scene_producer::print() const
266 return impl_->print();
269 std::wstring scene_producer::name() const
271 return impl_->name();
274 boost::property_tree::wptree scene_producer::info() const
276 return impl_->info();
279 boost::unique_future<std::wstring> scene_producer::call(const std::vector<std::wstring>& params)
281 return impl_->call(params);
284 void scene_producer::subscribe(const monitor::observable::observer_ptr& o)
289 void scene_producer::unsubscribe(const monitor::observable::observer_ptr& o)
291 impl_->unsubscribe(o);
294 void scene_producer::store_parameter(
295 const std::wstring& name,
296 const std::shared_ptr<parameter_holder_base>& param)
298 impl_->store_parameter(name, param);
301 spl::shared_ptr<frame_producer> create_dummy_scene_producer(const spl::shared_ptr<class frame_factory>& frame_factory, const video_format_desc& format_desc, const std::vector<std::wstring>& params)
303 if (params.size() < 1 || !boost::iequals(params.at(0), L"[SCENE]"))
304 return core::frame_producer::empty();
306 auto scene = spl::make_shared<scene_producer>(format_desc.width, format_desc.height);
308 binding<double> text_width(10);
309 binding<double> padding(1);
310 binding<double> panel_width = padding + text_width + padding;
311 binding<double> panel_height(50);
313 auto subscription = panel_width.on_change([&]
315 CASPAR_LOG(info) << "Panel width: " << panel_width.get();
323 auto create_param = [](std::wstring elem) -> std::vector<std::wstring>
325 std::vector<std::wstring> result;
326 result.push_back(elem);
330 auto& car_layer = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"car")));
331 car_layer.hidden = scene->frame() % 50 > 25 || !(scene->frame() < 1000);
332 std::vector<std::wstring> sub_params;
333 sub_params.push_back(L"[FREEHAND]");
334 sub_params.push_back(L"640");
335 sub_params.push_back(L"360");
336 scene->create_layer(create_producer(frame_factory, format_desc, sub_params), 10, 10);
339 scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"BLUE")), 110, 10);
341 //scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"SP")), 50, 50);
343 auto& upper_left = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/upper_left")));
344 auto& upper_right = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/upper_right")));
345 auto& lower_left = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/lower_left")));
346 auto& lower_right = scene->create_layer(create_producer(frame_factory, format_desc, create_param(L"scene/lower_right")));
348 binding<double> panel_x = (scene->frame()
350 .transformed([](double v) { return std::sin(v / 20.0); })
353 .transformed([](double v) { return std::floor(v); }); // snap to pixels instead of subpixels
354 binding<double> panel_y = when(car_layer.hidden).then(500.0).otherwise(-panel_x + 300);
355 upper_left.position.x = panel_x;
356 upper_left.position.y = panel_y;
357 upper_right.position.x = upper_left.position.x + upper_left.producer.get()->pixel_constraints().width + panel_width;
358 upper_right.position.y = upper_left.position.y;
359 lower_left.position.x = upper_left.position.x;
360 lower_left.position.y = upper_left.position.y + upper_left.producer.get()->pixel_constraints().height + panel_height;
361 lower_right.position.x = upper_right.position.x;
362 lower_right.position.y = lower_left.position.y;
365 panel_height.set(50);