git.sesse.net Git - casparcg/blob - core/producer/color/color_producer.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\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 */ \r
  20 #include "../../stdafx.h"\r
  21 \r
  22 #include "color_producer.h"\r
  23 \r
  24 #include "../frame/basic_frame.h"\r
  25 #include "../frame/frame_factory.h"\r
  26 #include "../../mixer/write_frame.h"\r
  27 \r
  28 #include <common/exception/exceptions.h>\r
  29 \r
  30 #include <boost/algorithm/string.hpp>\r
  31 \r
  32 #include <sstream>\r
  33 \r
  34 namespace caspar { namespace core {\r
  35         \r
  36 class color_producer : public frame_producer\r
  37 {\r
  38         safe_ptr<basic_frame> frame_;\r
  39         const std::wstring color_str_;\r
  40 \r
  41 public:\r
  42         explicit color_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& color) \r
  43                 : color_str_(color)\r
  44                 , frame_(create_color_frame(this, frame_factory, color))\r
  45         {}\r
  46 \r
  47         // frame_producer\r
  48                         \r
  49         virtual safe_ptr<basic_frame> receive(int) override\r
  50         {\r
  51                 return frame_;\r
  52         }       \r
  53 \r
  54         virtual safe_ptr<basic_frame> last_frame() const override\r
  55         {\r
  56                 return frame_; \r
  57         }       \r
  58 \r
  59         virtual std::wstring print() const override\r
  60         {\r
  61                 return L"color[" + color_str_ + L"]";\r
  62         }\r
  63 \r
  64         boost::property_tree::wptree info() const override\r
  65         {\r
  66                 boost::property_tree::wptree info;\r
  67                 info.add(L"type", L"color-producer");\r
  68                 info.add(L"color", color_str_);\r
  69                 return info;\r
  70         }\r
  71 };\r
  72 \r
  73 std::wstring get_hex_color(const std::wstring& str)\r
  74 {\r
  75         if(str.at(0) == '#')\r
  76                 return str.length() == 7 ? L"#FF" + str.substr(1) : str;\r
  77         \r
  78         if(boost::iequals(str, L"EMPTY"))\r
  79                 return L"#00000000";\r
  80 \r
  81         if(boost::iequals(str, L"BLACK"))\r
  82                 return L"#FF000000";\r
  83         \r
  84         if(boost::iequals(str, L"WHITE"))\r
  85                 return L"#FFFFFFFF";\r
  86         \r
  87         if(boost::iequals(str, L"RED"))\r
  88                 return L"#FFFF0000";\r
  89         \r
  90         if(boost::iequals(str, L"GREEN"))\r
  91                 return L"#FF00FF00";\r
  92         \r
  93         if(boost::iequals(str, L"BLUE"))\r
  94                 return L"#FF0000FF";    \r
  95         \r
  96         if(boost::iequals(str, L"ORANGE"))\r
  97                 return L"#FFFFA500";    \r
  98         \r
  99         if(boost::iequals(str, L"YELLOW"))\r
 100                 return L"#FFFFFF00";\r
 101         \r
 102         if(boost::iequals(str, L"BROWN"))\r
 103                 return L"#FFA52A2A";\r
 104         \r
 105         if(boost::iequals(str, L"GRAY"))\r
 106                 return L"#FF808080";\r
 107         \r
 108         if(boost::iequals(str, L"TEAL"))\r
 109                 return L"#FF008080";\r
 110         \r
 111         return str;\r
 112 }\r
 113 \r
 114 safe_ptr<frame_producer> create_color_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 115 {\r
 116         if(params.size() < 0)\r
 117                 return core::frame_producer::empty();\r
 118 \r
 119         auto color2 = get_hex_color(params[0]);\r
 120         if(color2.length() != 9 || color2[0] != '#')\r
 121                 return core::frame_producer::empty();\r
 122 \r
 123         return make_safe<color_producer>(frame_factory, color2);\r
 124 }\r
 125 safe_ptr<core::write_frame> create_color_frame(void* tag, const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& color)\r
 126 {\r
 127         auto color2 = get_hex_color(color);\r
 128         if(color2.length() != 9 || color2[0] != '#')\r
 129                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << arg_value_info(narrow(color2)) << msg_info("Invalid color."));\r
 130         \r
 131         core::pixel_format_desc desc;\r
 132         desc.pix_fmt = pixel_format::bgra;\r
 133         desc.planes.push_back(core::pixel_format_desc::plane(1, 1, 4));\r
 134         auto frame = frame_factory->create_frame(tag, desc);\r
 135                 \r
 136         // Read color from hex-string and write to frame pixel.\r
 137 \r
 138         auto& value = *reinterpret_cast<uint32_t*>(frame->image_data().begin());\r
 139         std::wstringstream str(color2.substr(1));\r
 140         if(!(str >> std::hex >> value) || !str.eof())\r
 141                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << arg_value_info(narrow(color2)) << msg_info("Invalid color."));\r
 142 \r
 143         frame->commit();\r
 144                 \r
 145         return frame;\r
 146 }\r
 147 \r
 148 }}