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: Robert Nagy, ronag89@gmail.com
22 #include "../StdAfx.h"
24 #include "draw_frame.h"
26 #include "frame_transform.h"
28 namespace caspar { namespace core {
38 struct draw_frame::impl
40 std::shared_ptr<const_frame> frame_;
41 std::vector<draw_frame> frames_;
42 core::frame_transform frame_transform_;
49 impl(const_frame&& frame)
50 : frame_(new const_frame(std::move(frame)))
54 impl(mutable_frame&& frame)
55 : frame_(new const_frame(std::move(frame)))
59 impl(std::vector<draw_frame> frames)
60 : frames_(std::move(frames))
64 impl(const impl& other)
65 : frames_(other.frames_)
66 , frame_(other.frame_)
67 , frame_transform_(other.frame_transform_)
71 void accept(frame_visitor& visitor) const
73 visitor.push(frame_transform_);
76 visitor.visit(*frame_);
80 for (auto& frame : frames_)
81 frame.accept(visitor);
86 bool operator==(const impl& other)
88 return frames_ == other.frames_ &&
89 frame_ == other.frame_ &&
90 frame_transform_ == other.frame_transform_;
93 int64_t get_and_record_age_millis(const draw_frame& self)
97 for (auto& frame : frames_)
100 result = std::max(result, frame.get_and_record_age_millis());
104 result = std::max(result, frame_->get_age_millis());
110 draw_frame::draw_frame() : impl_(new impl()){}
111 draw_frame::draw_frame(const draw_frame& other) : impl_(new impl(*other.impl_)){}
112 draw_frame::draw_frame(draw_frame&& other) : impl_(std::move(other.impl_)){}
113 draw_frame::draw_frame(const_frame&& frame) : impl_(new impl(std::move(frame))){}
114 draw_frame::draw_frame(mutable_frame&& frame) : impl_(new impl(std::move(frame))){}
115 draw_frame::draw_frame(std::vector<draw_frame> frames) : impl_(new impl(frames)){}
116 draw_frame::~draw_frame(){}
117 draw_frame& draw_frame::operator=(draw_frame other)
122 void draw_frame::swap(draw_frame& other){impl_.swap(other.impl_);}
124 const core::frame_transform& draw_frame::transform() const { return impl_->frame_transform_;}
125 core::frame_transform& draw_frame::transform() { return impl_->frame_transform_;}
126 void draw_frame::accept(frame_visitor& visitor) const{impl_->accept(visitor);}
127 int64_t draw_frame::get_and_record_age_millis() { return impl_->get_and_record_age_millis(*this); }
128 bool draw_frame::operator==(const draw_frame& other)const{return *impl_ == *other.impl_;}
129 bool draw_frame::operator!=(const draw_frame& other)const{return !(*this == other);}
131 draw_frame draw_frame::interlace(draw_frame frame1, draw_frame frame2, core::field_mode mode)
133 if(frame1 == draw_frame::empty() && frame2 == draw_frame::empty())
134 return draw_frame::empty();
136 if(frame1 == frame2 || mode == field_mode::progressive)
139 if(mode == field_mode::upper)
141 frame1.transform().image_transform.field_mode = field_mode::upper;
142 frame2.transform().image_transform.field_mode = field_mode::lower;
146 frame1.transform().image_transform.field_mode = field_mode::lower;
147 frame2.transform().image_transform.field_mode = field_mode::upper;
150 std::vector<draw_frame> frames;
151 frames.push_back(std::move(frame1));
152 frames.push_back(std::move(frame2));
153 return draw_frame(std::move(frames));
156 draw_frame draw_frame::over(draw_frame frame1, draw_frame frame2)
158 if(frame1 == draw_frame::empty() && frame2 == draw_frame::empty())
159 return draw_frame::empty();
161 std::vector<draw_frame> frames;
162 frames.push_back(std::move(frame1));
163 frames.push_back(std::move(frame2));
164 return draw_frame(std::move(frames));
167 draw_frame draw_frame::mask(draw_frame fill, draw_frame key)
169 if(fill == draw_frame::empty() || key == draw_frame::empty())
170 return draw_frame::empty();
172 std::vector<draw_frame> frames;
173 key.transform().image_transform.is_key = true;
174 frames.push_back(std::move(key));
175 frames.push_back(std::move(fill));
176 return draw_frame(std::move(frames));
179 draw_frame draw_frame::push(draw_frame frame)
181 std::vector<draw_frame> frames;
182 frames.push_back(std::move(frame));
183 return draw_frame(std::move(frames));
186 draw_frame eof_frame(const_frame(0));
187 draw_frame empty_frame(const_frame(0));
188 draw_frame late_frame(const_frame(0));
190 draw_frame draw_frame::still(draw_frame frame)
192 frame.transform().image_transform.is_still = true;
193 frame.transform().audio_transform.is_still = true;
197 const draw_frame& draw_frame::empty()
202 const draw_frame& draw_frame::late()