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