git.sesse.net Git - casparcg/blob - core/frame/draw_frame.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../stdafx.h"\r
  23 \r
  24 #include "draw_frame.h"\r
  25 \r
  26 #include "frame_transform.h"\r
  27 \r
  28 #include <boost/foreach.hpp>\r
  29 \r
  30 namespace caspar { namespace core {\r
  31                                                                                                                                                                                                                                                                                                                 \r
  32 struct draw_frame::impl\r
  33 {               \r
  34         std::vector<spl::shared_ptr<draw_frame>> frames_;\r
  35 \r
  36         frame_transform frame_transform_;               \r
  37 public:\r
  38         impl()\r
  39         {\r
  40         }\r
  41 \r
  42         impl(std::vector<spl::shared_ptr<draw_frame>> frames) : frames_(std::move(frames))\r
  43         {\r
  44         }\r
  45 \r
  46         impl(spl::shared_ptr<draw_frame>&& frame) \r
  47         {\r
  48                 frames_.push_back(std::move(frame));\r
  49         }\r
  50 \r
  51         impl(const spl::shared_ptr<draw_frame>& frame)          \r
  52         { \r
  53                 frames_.push_back(frame);\r
  54         }\r
  55         \r
  56         void accept(frame_visitor& visitor)\r
  57         {\r
  58                 visitor.push(frame_transform_);\r
  59                 BOOST_FOREACH(auto frame, frames_)\r
  60                         frame->accept(visitor);\r
  61                 visitor.pop();\r
  62         }       \r
  63 };\r
  64         \r
  65 draw_frame::draw_frame() : impl_(new impl()){}\r
  66 draw_frame::draw_frame(const draw_frame& other) : impl_(new impl(*other.impl_)){}\r
  67 draw_frame::draw_frame(draw_frame&& other) : impl_(std::move(other.impl_)){}\r
  68 draw_frame::draw_frame(std::vector<spl::shared_ptr<draw_frame>> frames) : impl_(new impl(frames)){}\r
  69 draw_frame::draw_frame(spl::shared_ptr<draw_frame> frame)  : impl_(new impl(std::move(frame))){}\r
  70 draw_frame& draw_frame::operator=(draw_frame other)\r
  71 {\r
  72         other.swap(*this);\r
  73         return *this;\r
  74 }\r
  75 void draw_frame::swap(draw_frame& other){impl_.swap(other.impl_);}\r
  76 \r
  77 const frame_transform& draw_frame::get_frame_transform() const { return impl_->frame_transform_;}\r
  78 frame_transform& draw_frame::get_frame_transform() { return impl_->frame_transform_;}\r
  79 void draw_frame::accept(frame_visitor& visitor){impl_->accept(visitor);}\r
  80 \r
  81 spl::shared_ptr<draw_frame> draw_frame::interlace(const spl::shared_ptr<draw_frame>& frame1, const spl::shared_ptr<draw_frame>& frame2, field_mode mode)\r
  82 {                               \r
  83         if(frame1 == draw_frame::eof() || frame2 == draw_frame::eof())\r
  84                 return draw_frame::eof();\r
  85 \r
  86         if(frame1 == draw_frame::empty() && frame2 == draw_frame::empty())\r
  87                 return draw_frame::empty();\r
  88         \r
  89         if(frame1 == frame2 || mode == field_mode::progressive)\r
  90                 return frame2;\r
  91 \r
  92         auto my_frame1 = spl::make_shared<draw_frame>(frame1);\r
  93         auto my_frame2 = draw_frame::mute_audio(spl::make_shared<draw_frame>(frame2));\r
  94         if(mode == field_mode::upper)\r
  95         {\r
  96                 my_frame1->get_frame_transform().field_mode = field_mode::upper;        \r
  97                 my_frame2->get_frame_transform().field_mode = field_mode::lower;        \r
  98         }                                                                        \r
  99         else                                                             \r
 100         {                                                                        \r
 101                 my_frame1->get_frame_transform().field_mode = field_mode::lower;        \r
 102                 my_frame2->get_frame_transform().field_mode = field_mode::upper;        \r
 103         }\r
 104 \r
 105         std::vector<spl::shared_ptr<draw_frame>> frames;\r
 106         frames.push_back(my_frame1);\r
 107         frames.push_back(my_frame2);\r
 108         return spl::make_shared<draw_frame>(std::move(frames));\r
 109 }\r
 110 \r
 111 spl::shared_ptr<draw_frame> draw_frame::over(const spl::shared_ptr<draw_frame>& frame1, const spl::shared_ptr<draw_frame>& frame2)\r
 112 {       \r
 113         if(frame1 == draw_frame::eof() || frame2 == draw_frame::eof())\r
 114                 return draw_frame::eof();\r
 115         \r
 116         if(frame1 == draw_frame::empty() && frame2 == draw_frame::empty())\r
 117                 return draw_frame::empty();\r
 118 \r
 119         std::vector<spl::shared_ptr<draw_frame>> frames;\r
 120         frames.push_back(frame1);\r
 121         frames.push_back(frame2);\r
 122         return spl::make_shared<draw_frame>(std::move(frames));\r
 123 }\r
 124 \r
 125 spl::shared_ptr<draw_frame> draw_frame::mask(const spl::shared_ptr<draw_frame>& fill, const spl::shared_ptr<draw_frame>& key)\r
 126 {       \r
 127         if(fill == draw_frame::eof() || key == draw_frame::eof())\r
 128                 return draw_frame::eof();\r
 129 \r
 130         if(fill == draw_frame::empty() || key == draw_frame::empty())\r
 131                 return draw_frame::empty();\r
 132 \r
 133         std::vector<spl::shared_ptr<draw_frame>> frames;\r
 134         key->get_frame_transform().is_key = true;\r
 135         frames.push_back(key);\r
 136         frames.push_back(fill);\r
 137         return spl::make_shared<draw_frame>(std::move(frames));\r
 138 }\r
 139         \r
 140 spl::shared_ptr<draw_frame> draw_frame::mute_audio(const spl::shared_ptr<draw_frame>& frame)\r
 141 {\r
 142         auto frame2 = spl::make_shared<draw_frame>(frame);\r
 143         frame2->get_frame_transform().volume = 0.0;\r
 144         return frame2;\r
 145 }\r
 146 \r
 147 const spl::shared_ptr<draw_frame>& draw_frame::eof()\r
 148 {\r
 149         static spl::shared_ptr<draw_frame> frame = spl::make_shared<draw_frame>();\r
 150         return frame;\r
 151 }\r
 152 \r
 153 const spl::shared_ptr<draw_frame>& draw_frame::empty()\r
 154 {\r
 155         static spl::shared_ptr<draw_frame> frame = spl::make_shared<draw_frame>();\r
 156         return frame;\r
 157 }\r
 158 \r
 159 const spl::shared_ptr<draw_frame>& draw_frame::late()\r
 160 {\r
 161         static spl::shared_ptr<draw_frame> frame = spl::make_shared<draw_frame>();\r
 162         return frame;\r
 163 }\r
 164         \r
 165 \r
 166 }}