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 "../frame_producer.h"\r
  27 #include "../frame/basic_frame.h"\r
  28 #include "../frame/frame_factory.h"\r
  29 #include "../frame/pixel_format.h"\r
  30 #include "../../mixer/write_frame.h"\r
  31 \r
  32 #include <common/no_copy.h>\r
  33 #include <common/exception/exceptions.h>\r
  34 \r
  35 #include <boost/algorithm/string.hpp>\r
  36 \r
  37 #include <sstream>\r
  38 \r
  39 namespace caspar { namespace core {\r
  40         \r
  41 class color_producer : public frame_producer\r
  42 {\r
  43         CASPAR_NO_COPY(color_producer);\r
  44 \r
  45         safe_ptr<basic_frame> frame_;\r
  46         const std::wstring color_str_;\r
  47 \r
  48 public:\r
  49         explicit color_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& color) \r
  50                 : color_str_(color)\r
  51                 , frame_(create_color_frame(this, frame_factory, color))\r
  52         {}\r
  53 \r
  54         // frame_producer\r
  55                         \r
  56         virtual safe_ptr<basic_frame> receive(int) override\r
  57         {\r
  58                 return frame_;\r
  59         }       \r
  60 \r
  61         virtual safe_ptr<basic_frame> last_frame() const override\r
  62         {\r
  63                 return frame_; \r
  64         }       \r
  65 \r
  66         virtual std::wstring print() const override\r
  67         {\r
  68                 return L"color[" + color_str_ + L"]";\r
  69         }\r
  70 \r
  71         boost::property_tree::wptree info() const override\r
  72         {\r
  73                 boost::property_tree::wptree info;\r
  74                 info.add(L"type", L"color-producer");\r
  75                 info.add(L"color", color_str_);\r
  76                 return info;\r
  77         }\r
  78 };\r
  79 \r
  80 std::wstring get_hex_color(const std::wstring& str)\r
  81 {\r
  82         if(str.at(0) == '#')\r
  83                 return str.length() == 7 ? L"#FF" + str.substr(1) : str;\r
  84         \r
  85         if(boost::iequals(str, L"EMPTY"))\r
  86                 return L"#00000000";\r
  87 \r
  88         if(boost::iequals(str, L"BLACK"))\r
  89                 return L"#FF000000";\r
  90         \r
  91         if(boost::iequals(str, L"WHITE"))\r
  92                 return L"#FFFFFFFF";\r
  93         \r
  94         if(boost::iequals(str, L"RED"))\r
  95                 return L"#FFFF0000";\r
  96         \r
  97         if(boost::iequals(str, L"GREEN"))\r
  98                 return L"#FF00FF00";\r
  99         \r
 100         if(boost::iequals(str, L"BLUE"))\r
 101                 return L"#FF0000FF";    \r
 102         \r
 103         if(boost::iequals(str, L"ORANGE"))\r
 104                 return L"#FFFFA500";    \r
 105         \r
 106         if(boost::iequals(str, L"YELLOW"))\r
 107                 return L"#FFFFFF00";\r
 108         \r
 109         if(boost::iequals(str, L"BROWN"))\r
 110                 return L"#FFA52A2A";\r
 111         \r
 112         if(boost::iequals(str, L"GRAY"))\r
 113                 return L"#FF808080";\r
 114         \r
 115         if(boost::iequals(str, L"TEAL"))\r
 116                 return L"#FF008080";\r
 117         \r
 118         return str;\r
 119 }\r
 120 \r
 121 safe_ptr<frame_producer> create_color_producer(const safe_ptr<frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 122 {\r
 123         if(params.size() < 0)\r
 124                 return core::frame_producer::empty();\r
 125 \r
 126         auto color2 = get_hex_color(params[0]);\r
 127         if(color2.length() != 9 || color2[0] != '#')\r
 128                 return core::frame_producer::empty();\r
 129 \r
 130         return create_producer_print_proxy(\r
 131                         make_safe<color_producer>(frame_factory, color2));\r
 132 }\r
 133 safe_ptr<write_frame> create_color_frame(void* tag, const safe_ptr<frame_factory>& frame_factory, const std::wstring& color)\r
 134 {\r
 135         auto color2 = get_hex_color(color);\r
 136         if(color2.length() != 9 || color2[0] != '#')\r
 137                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << warg_value_info(color2) << msg_info("Invalid color."));\r
 138         \r
 139         core::pixel_format_desc desc;\r
 140         desc.pix_fmt = 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().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") << warg_value_info(color2) << msg_info("Invalid color."));\r
 150 \r
 151         frame->commit();\r
 152                 \r
 153         return frame;\r
 154 }\r
 155 \r
 156 }}