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
24 #include "../frame_producer.h"
26 #include "../binding.h"
28 namespace caspar { namespace core { namespace scene {
38 binding<double> opacity;
45 binding<std::wstring> name;
47 adjustments adjustments;
48 binding<spl::shared_ptr<frame_producer>> producer;
52 explicit layer(const spl::shared_ptr<frame_producer>& producer);
53 layer(const std::wstring& name, const spl::shared_ptr<frame_producer>& producer);
56 template<typename T> class parameter_holder;
58 class parameter_holder_base
61 virtual ~parameter_holder_base()
65 virtual void set(const std::wstring& raw_value) = 0;
70 return dynamic_cast<parameter_holder<T>>(*this).value();
75 class parameter_holder : public parameter_holder_base
79 parameter_holder(T initial_value)
80 : value_(initial_value)
89 virtual void set(const std::wstring& raw_value)
91 value_.set(boost::lexical_cast<T>(raw_value));
95 class scene_producer : public frame_producer_base
98 scene_producer(int width, int height);
101 class draw_frame receive_impl() override;
102 constraints& pixel_constraints() override;
103 void on_interaction(const interaction_event::ptr& event) override;
104 bool collides(double x, double y) const override;
105 std::wstring print() const override;
106 std::wstring name() const override;
107 boost::unique_future<std::wstring> call(const std::vector<std::wstring>& params) override;
108 boost::property_tree::wptree info() const override;
109 void subscribe(const monitor::observable::observer_ptr& o) override;
110 void unsubscribe(const monitor::observable::observer_ptr& o) override;
112 const spl::shared_ptr<frame_producer>& producer, int x, int y);
114 const spl::shared_ptr<frame_producer>& producer, int x, int y, const std::wstring& name);
115 layer& create_layer(const spl::shared_ptr<frame_producer>& producer);
116 binding<int64_t> frame();
118 template<typename T> binding<T>& create_parameter(const std::wstring& name, T initial_value = T())
120 auto param = std::make_shared<parameter_holder<T>>(initial_value);
122 store_parameter(name, param);
124 return param->value();
127 void store_parameter(
128 const std::wstring& name,
129 const std::shared_ptr<parameter_holder_base>& param);
132 std::unique_ptr<impl> impl_;
135 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);