git.sesse.net Git - casparcg/blob - modules/image/producer/image_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 "image_producer.h"\r
  23 \r
  24 #include "../util/image_loader.h"\r
  25 \r
  26 #include <core/video_format.h>\r
  27 \r
  28 #include <core/frame/draw_frame.h>\r
  29 #include <core/frame/frame_factory.h>\r
  30 #include <core/frame/pixel_format.h>\r
  31 #include <core/mixer/gpu/write_frame.h>\r
  32 \r
  33 #include <common/env.h>\r
  34 #include <common/log.h>\r
  35 \r
  36 #include <boost/assign.hpp>\r
  37 #include <boost/filesystem.hpp>\r
  38 #include <boost/property_tree/ptree.hpp>\r
  39 \r
  40 #include <algorithm>\r
  41 \r
  42 using namespace boost::assign;\r
  43 \r
  44 namespace caspar { namespace image {\r
  45 \r
  46 struct image_producer : public core::frame_producer\r
  47 {       \r
  48         const std::wstring filename_;\r
  49         spl::shared_ptr<core::draw_frame> frame_;\r
  50         \r
  51         explicit image_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::wstring& filename) \r
  52                 : filename_(filename)\r
  53                 , frame_(core::draw_frame::empty())     \r
  54         {\r
  55                 auto bitmap = load_image(filename_);\r
  56                 FreeImage_FlipVertical(bitmap.get());\r
  57                 \r
  58                 core::pixel_format_desc desc = core::pixel_format::bgra;\r
  59                 desc.planes.push_back(core::pixel_format_desc::plane(FreeImage_GetWidth(bitmap.get()), FreeImage_GetHeight(bitmap.get()), 4));\r
  60                 auto frame = frame_factory->create_frame(this, desc);\r
  61 \r
  62                 std::copy_n(FreeImage_GetBits(bitmap.get()), frame->image_data(0).size(), frame->image_data(0).begin());\r
  63                 frame_ = std::move(frame);\r
  64         }\r
  65         \r
  66         // frame_producer\r
  67 \r
  68         virtual spl::shared_ptr<core::draw_frame> receive(int) override\r
  69         {\r
  70                 return frame_;\r
  71         }\r
  72                 \r
  73         virtual spl::shared_ptr<core::draw_frame> last_frame() const override\r
  74         {\r
  75                 return frame_;\r
  76         }\r
  77 \r
  78         virtual std::wstring print() const override\r
  79         {\r
  80                 return L"image_producer[" + filename_ + L"]";\r
  81         }\r
  82 \r
  83         virtual boost::property_tree::wptree info() const override\r
  84         {\r
  85                 boost::property_tree::wptree info;\r
  86                 info.add(L"type", L"image-producer");\r
  87                 info.add(L"filename", filename_);\r
  88                 return info;\r
  89         }\r
  90 };\r
  91 \r
  92 spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
  93 {\r
  94         static const std::vector<std::wstring> extensions = list_of(L".png")(L".tga")(L".bmp")(L".jpg")(L".jpeg")(L".gif")(L".tiff")(L".tif")(L".jp2")(L".jpx")(L".j2k")(L".j2c");\r
  95         std::wstring filename = env::media_folder() + L"\\" + params[0];\r
  96         \r
  97         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool\r
  98                 {                       \r
  99                         return boost::filesystem::is_regular_file(boost::filesystem::path(filename).replace_extension(ex));\r
 100                 });\r
 101 \r
 102         if(ext == extensions.end())\r
 103                 return core::frame_producer::empty();\r
 104 \r
 105         return spl::make_shared<image_producer>(frame_factory, filename + *ext);\r
 106 }\r
 107 \r
 108 \r
 109 }}