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