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"
28 #include "frame_transform.h"
30 namespace caspar { namespace core {
40 struct draw_frame::impl
42 std::shared_ptr<const_frame> frame_;
43 std::vector<draw_frame> frames_;
44 core::frame_transform frame_transform_;
51 impl(const_frame&& frame)
52 : frame_(new const_frame(std::move(frame)))
56 impl(mutable_frame&& frame)
57 : frame_(new const_frame(std::move(frame)))
61 impl(std::vector<draw_frame> frames)
62 : frames_(std::move(frames))
66 impl(const impl& other)
67 : frames_(other.frames_)
68 , frame_(other.frame_)
69 , frame_transform_(other.frame_transform_)
73 void accept(frame_visitor& visitor) const
75 visitor.push(frame_transform_);
78 visitor.visit(*frame_);
82 for (auto& frame : frames_)
83 frame.accept(visitor);
88 bool operator==(const impl& other)
90 return frames_ == other.frames_ &&
91 frame_ == other.frame_ &&
92 frame_transform_ == other.frame_transform_;
96 draw_frame::draw_frame() : impl_(new impl()){}
97 draw_frame::draw_frame(const draw_frame& other) : impl_(new impl(*other.impl_)){}
98 draw_frame::draw_frame(draw_frame&& other) : impl_(std::move(other.impl_)){}
99 draw_frame::draw_frame(const_frame&& frame) : impl_(new impl(std::move(frame))){}
100 draw_frame::draw_frame(mutable_frame&& frame) : impl_(new impl(std::move(frame))){}
101 draw_frame::draw_frame(std::vector<draw_frame> frames) : impl_(new impl(frames)){}
102 draw_frame::~draw_frame(){}
103 draw_frame& draw_frame::operator=(draw_frame other)
108 void draw_frame::swap(draw_frame& other){impl_.swap(other.impl_);}
110 const core::frame_transform& draw_frame::transform() const { return impl_->frame_transform_;}
111 core::frame_transform& draw_frame::transform() { return impl_->frame_transform_;}
112 void draw_frame::accept(frame_visitor& visitor) const{impl_->accept(visitor);}
113 bool draw_frame::operator==(const draw_frame& other)const{return *impl_ == *other.impl_;}
114 bool draw_frame::operator!=(const draw_frame& other)const{return !(*this == other);}
116 draw_frame draw_frame::interlace(draw_frame frame1, draw_frame frame2, core::field_mode mode)
118 if(frame1 == draw_frame::empty() && frame2 == draw_frame::empty())
119 return draw_frame::empty();
121 if(frame1 == frame2 || mode == field_mode::progressive)
124 if(mode == field_mode::upper)
126 frame1.transform().image_transform.field_mode = field_mode::upper;
127 frame2.transform().image_transform.field_mode = field_mode::lower;
131 frame1.transform().image_transform.field_mode = field_mode::lower;
132 frame2.transform().image_transform.field_mode = field_mode::upper;
135 std::vector<draw_frame> frames;
136 frames.push_back(std::move(frame1));
137 frames.push_back(std::move(frame2));
138 return draw_frame(std::move(frames));
141 draw_frame draw_frame::over(draw_frame frame1, draw_frame frame2)
143 if(frame1 == draw_frame::empty() && frame2 == draw_frame::empty())
144 return draw_frame::empty();
146 std::vector<draw_frame> frames;
147 frames.push_back(std::move(frame1));
148 frames.push_back(std::move(frame2));
149 return draw_frame(std::move(frames));
152 draw_frame draw_frame::mask(draw_frame fill, draw_frame key)
154 if(fill == draw_frame::empty() || key == draw_frame::empty())
155 return draw_frame::empty();
157 std::vector<draw_frame> frames;
158 key.transform().image_transform.is_key = true;
159 frames.push_back(std::move(key));
160 frames.push_back(std::move(fill));
161 return draw_frame(std::move(frames));
164 draw_frame draw_frame::push(draw_frame frame)
166 std::vector<draw_frame> frames;
167 frames.push_back(std::move(frame));
168 return draw_frame(std::move(frames));
171 draw_frame eof_frame(const_frame(0));
172 draw_frame empty_frame(const_frame(0));
173 draw_frame late_frame(const_frame(0));
175 draw_frame draw_frame::still(draw_frame frame)
177 frame.transform().image_transform.is_still = true;
178 frame.transform().audio_transform.is_still = true;
182 const draw_frame& draw_frame::empty()
187 const draw_frame& draw_frame::late()