git.sesse.net Git - casparcg/blob - core/producer/color/color_producer.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 "color_producer.h"\r
  25 \r
  26 #include <core/producer/frame_producer.h>\r
  27 #include <core/frame/frame.h>\r
  28 #include <core/frame/draw_frame.h>\r
  29 #include <core/frame/frame_factory.h>\r
  30 #include <core/frame/pixel_format.h>\r
  31 #include <core/monitor/monitor.h>\r
  32 \r
  33 #include <common/except.h>\r
  34 #include <common/array.h>\r
  35 \r
  36 #include <boost/algorithm/string.hpp>\r
  37 \r
  38 #include <sstream>\r
  39 \r
  40 namespace caspar { namespace core {\r
  41         \r
  42 class color_producer : public frame_producer\r
  43 {\r
  44         monitor::basic_subject  event_subject_;\r
  45 \r
  46         draw_frame                              frame_;\r
  47         const std::wstring              color_str_;\r
  48 \r
  49 public:\r
  50         explicit color_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& color) \r
  51                 : color_str_(color)\r
  52                 , frame_(create_color_frame(this, frame_factory, color))\r
  53         {\r
  54                 CASPAR_LOG(info) << print() << L" Initialized";\r
  55         }\r
  56 \r
  57         // frame_producer\r
  58                         \r
  59         draw_frame receive(int) override\r
  60         {\r
  61                 event_subject_ << monitor::event("color") % color_str_;\r
  62 \r
  63                 return frame_;\r
  64         }       \r
  65         \r
  66         std::wstring print() const override\r
  67         {\r
  68                 return L"color[" + color_str_ + L"]";\r
  69         }\r
  70 \r
  71         std::wstring name() const override\r
  72         {\r
  73                 return L"color";\r
  74         }\r
  75 \r
  76         draw_frame last_frame() const override\r
  77         {\r
  78                 return frame_;\r
  79         }\r
  80 \r
  81         boost::property_tree::wptree info() const override\r
  82         {\r
  83                 boost::property_tree::wptree info;\r
  84                 info.add(L"type", L"color");\r
  85                 info.add(L"color", color_str_);\r
  86                 return info;\r
  87         }\r
  88 \r
  89         void subscribe(const monitor::observable::observer_ptr& o) override                                                                                                                     \r
  90         {\r
  91                 return event_subject_.subscribe(o);\r
  92         }\r
  93 \r
  94         void unsubscribe(const monitor::observable::observer_ptr& o) override           \r
  95         {\r
  96                 return event_subject_.unsubscribe(o);\r
  97         }\r
  98 };\r
  99 \r
 100 std::wstring get_hex_color(const std::wstring& str)\r
 101 {\r
 102         if(str.at(0) == '#')\r
 103                 return str.length() == 7 ? L"#FF" + str.substr(1) : str;\r
 104         \r
 105         if(boost::iequals(str, L"EMPTY"))\r
 106                 return L"#00000000";\r
 107 \r
 108         if(boost::iequals(str, L"BLACK"))\r
 109                 return L"#FF000000";\r
 110         \r
 111         if(boost::iequals(str, L"WHITE"))\r
 112                 return L"#FFFFFFFF";\r
 113         \r
 114         if(boost::iequals(str, L"RED"))\r
 115                 return L"#FFFF0000";\r
 116         \r
 117         if(boost::iequals(str, L"GREEN"))\r
 118                 return L"#FF00FF00";\r
 119         \r
 120         if(boost::iequals(str, L"BLUE"))\r
 121                 return L"#FF0000FF";    \r
 122         \r
 123         if(boost::iequals(str, L"ORANGE"))\r
 124                 return L"#FFFFA500";    \r
 125         \r
 126         if(boost::iequals(str, L"YELLOW"))\r
 127                 return L"#FFFFFF00";\r
 128         \r
 129         if(boost::iequals(str, L"BROWN"))\r
 130                 return L"#FFA52A2A";\r
 131         \r
 132         if(boost::iequals(str, L"GRAY"))\r
 133                 return L"#FF808080";\r
 134         \r
 135         if(boost::iequals(str, L"TEAL"))\r
 136                 return L"#FF008080";\r
 137         \r
 138         return str;\r
 139 }\r
 140 \r
 141 spl::shared_ptr<frame_producer> create_color_producer(const spl::shared_ptr<frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 142 {\r
 143         if(params.size() < 0)\r
 144                 return core::frame_producer::empty();\r
 145 \r
 146         auto color2 = get_hex_color(params[0]);\r
 147         if(color2.length() != 9 || color2[0] != '#')\r
 148                 return core::frame_producer::empty();\r
 149 \r
 150         return spl::make_shared<color_producer>(frame_factory, color2);\r
 151 }\r
 152 \r
 153 draw_frame create_color_frame(void* tag, const spl::shared_ptr<frame_factory>& frame_factory, const std::wstring& color)\r
 154 {\r
 155         auto color2 = get_hex_color(color);\r
 156         if(color2.length() != 9 || color2[0] != '#')\r
 157                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << arg_value_info(color2) << msg_info("Invalid color."));\r
 158         \r
 159         core::pixel_format_desc desc(pixel_format::bgra);\r
 160         desc.planes.push_back(core::pixel_format_desc::plane(1, 1, 4));\r
 161         auto frame = frame_factory->create_frame(tag, desc);\r
 162                 \r
 163         // Read color from hex-string and write to frame pixel.\r
 164 \r
 165         auto& value = *reinterpret_cast<uint32_t*>(frame.image_data(0).begin());\r
 166         std::wstringstream str(color2.substr(1));\r
 167         if(!(str >> std::hex >> value) || !str.eof())\r
 168                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << arg_value_info(color2) << msg_info("Invalid color."));\r
 169                         \r
 170         return core::draw_frame(std::move(frame));\r
 171 }\r
 172 \r
 173 }}