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

   1 /*\r
   2 * Copyright 2013 Sveriges Television AB http://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 "../../monitor/monitor.h"\r
  27 \r
  28 #include "../frame/basic_frame.h"\r
  29 #include "../frame/frame_factory.h"\r
  30 #include "../../mixer/write_frame.h"\r
  31 \r
  32 #include <common/exception/exceptions.h>\r
  33 \r
  34 #include <core/parameters/parameters.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::subject                monitor_subject_;\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 \r
  55         // frame_producer\r
  56                         \r
  57         virtual safe_ptr<basic_frame> receive(int) override\r
  58         {\r
  59                 monitor_subject_ << monitor::message("/color") % color_str_;\r
  60 \r
  61                 return frame_;\r
  62         }       \r
  63 \r
  64         virtual safe_ptr<basic_frame> last_frame() const override\r
  65         {\r
  66                 return frame_; \r
  67         }       \r
  68 \r
  69         virtual std::wstring print() const override\r
  70         {\r
  71                 return L"color[" + color_str_ + L"]";\r
  72         }\r
  73 \r
  74         boost::property_tree::wptree info() const override\r
  75         {\r
  76                 boost::property_tree::wptree info;\r
  77                 info.add(L"type", L"color-producer");\r
  78                 info.add(L"color", color_str_);\r
  79                 return info;\r
  80         }\r
  81 \r
  82         monitor::subject& monitor_output()\r
  83         {\r
  84                 return monitor_subject_;\r
  85         }\r
  86 };\r
  87 \r
  88 std::wstring get_hex_color(const std::wstring& str)\r
  89 {\r
  90         if(str.at(0) == '#')\r
  91                 return str.length() == 7 ? L"#FF" + str.substr(1) : str;\r
  92         \r
  93         if(boost::iequals(str, L"EMPTY"))\r
  94                 return L"#00000000";\r
  95 \r
  96         if(boost::iequals(str, L"BLACK"))\r
  97                 return L"#FF000000";\r
  98         \r
  99         if(boost::iequals(str, L"WHITE"))\r
 100                 return L"#FFFFFFFF";\r
 101         \r
 102         if(boost::iequals(str, L"RED"))\r
 103                 return L"#FFFF0000";\r
 104         \r
 105         if(boost::iequals(str, L"GREEN"))\r
 106                 return L"#FF00FF00";\r
 107         \r
 108         if(boost::iequals(str, L"BLUE"))\r
 109                 return L"#FF0000FF";    \r
 110         \r
 111         if(boost::iequals(str, L"ORANGE"))\r
 112                 return L"#FFFFA500";    \r
 113         \r
 114         if(boost::iequals(str, L"YELLOW"))\r
 115                 return L"#FFFFFF00";\r
 116         \r
 117         if(boost::iequals(str, L"BROWN"))\r
 118                 return L"#FFA52A2A";\r
 119         \r
 120         if(boost::iequals(str, L"GRAY"))\r
 121                 return L"#FF808080";\r
 122         \r
 123         if(boost::iequals(str, L"TEAL"))\r
 124                 return L"#FF008080";\r
 125         \r
 126         return str;\r
 127 }\r
 128 \r
 129 safe_ptr<frame_producer> create_color_producer(\r
 130                 const safe_ptr<core::frame_factory>& frame_factory,\r
 131                 const core::parameters& params)\r
 132 {\r
 133         if(params.empty())\r
 134                 return core::frame_producer::empty();\r
 135 \r
 136         auto color2 = get_hex_color(params[0]);\r
 137         if(color2.length() != 9 || color2[0] != '#')\r
 138                 return core::frame_producer::empty();\r
 139 \r
 140         return create_producer_print_proxy(\r
 141                         make_safe<color_producer>(frame_factory, color2));\r
 142 }\r
 143 safe_ptr<core::write_frame> create_color_frame(void* tag, const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& color)\r
 144 {\r
 145         auto color2 = get_hex_color(color);\r
 146         if(color2.length() != 9 || color2[0] != '#')\r
 147                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << arg_value_info(narrow(color2)) << msg_info("Invalid color."));\r
 148         \r
 149         core::pixel_format_desc desc;\r
 150         desc.pix_fmt = pixel_format::bgra;\r
 151         desc.planes.push_back(core::pixel_format_desc::plane(1, 1, 4));\r
 152         auto frame = frame_factory->create_frame(tag, desc);\r
 153                 \r
 154         // Read color from hex-string and write to frame pixel.\r
 155 \r
 156         auto& value = *reinterpret_cast<uint32_t*>(frame->image_data().begin());\r
 157         std::wstringstream str(color2.substr(1));\r
 158         if(!(str >> std::hex >> value) || !str.eof())\r
 159                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("color") << arg_value_info(narrow(color2)) << msg_info("Invalid color."));\r
 160 \r
 161         frame->commit();\r
 162                 \r
 163         return frame;\r
 164 }\r
 165 \r
 166 }}