git.sesse.net Git - casparcg/blob - modules/image/producer/image_scroll_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_scroll_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/producer/frame/basic_frame.h>\r
  29 #include <core/producer/frame/frame_factory.h>\r
  30 #include <core/producer/frame/frame_transform.h>\r
  31 #include <core/mixer/write_frame.h>\r
  32 \r
  33 #include <common/env.h>\r
  34 #include <common/log/log.h>\r
  35 #include <common/exception/exceptions.h>\r
  36 \r
  37 #include <boost/assign.hpp>\r
  38 #include <boost/filesystem.hpp>\r
  39 #include <boost/foreach.hpp>\r
  40 #include <boost/lexical_cast.hpp>\r
  41 #include <boost/property_tree/ptree.hpp>\r
  42 \r
  43 #include <algorithm>\r
  44 #include <array>\r
  45 \r
  46 using namespace boost::assign;\r
  47 \r
  48 namespace caspar { namespace image {\r
  49                 \r
  50 struct image_scroll_producer : public core::frame_producer\r
  51 {       \r
  52         const std::wstring                                                      filename_;\r
  53         std::vector<safe_ptr<core::basic_frame>>        frames_;\r
  54         core::video_format_desc                                         format_desc_;\r
  55         int                                                                             width_;\r
  56         int                                                                             height_;\r
  57 \r
  58         int                                                                                     delta_;\r
  59         int                                                                                     speed_;\r
  60 \r
  61         std::array<double, 2>                                           start_offset_;\r
  62 \r
  63         safe_ptr<core::basic_frame>                                     last_frame_;\r
  64         \r
  65         explicit image_scroll_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, int speed) \r
  66                 : filename_(filename)\r
  67                 , delta_(0)\r
  68                 , format_desc_(frame_factory->get_video_format_desc())\r
  69                 , speed_(speed)\r
  70                 , last_frame_(core::basic_frame::empty())\r
  71         {\r
  72                 start_offset_.assign(0.0);\r
  73 \r
  74                 auto bitmap = load_image(filename_);\r
  75                 FreeImage_FlipVertical(bitmap.get());\r
  76 \r
  77                 width_  = FreeImage_GetWidth(bitmap.get());\r
  78                 height_ = FreeImage_GetHeight(bitmap.get());\r
  79 \r
  80                 auto bytes = FreeImage_GetBits(bitmap.get());\r
  81                 int count = width_*height_*4;\r
  82 \r
  83                 if(height_ > format_desc_.height)\r
  84                 {\r
  85                         while(count > 0)\r
  86                         {\r
  87                                 core::pixel_format_desc desc;\r
  88                                 desc.pix_fmt = core::pixel_format::bgra;\r
  89                                 desc.planes.push_back(core::pixel_format_desc::plane(width_, format_desc_.height, 4));\r
  90                                 auto frame = frame_factory->create_frame(reinterpret_cast<void*>(rand()), desc);\r
  91 \r
  92                                 if(count >= frame->image_data().size())\r
  93                                 {       \r
  94                                         std::copy_n(bytes + count - frame->image_data().size(), frame->image_data().size(), frame->image_data().begin());\r
  95                                         count -= static_cast<int>(frame->image_data().size());\r
  96                                 }\r
  97                                 else\r
  98                                 {\r
  99                                         memset(frame->image_data().begin(), 0, frame->image_data().size());     \r
 100                                         std::copy_n(bytes, count, frame->image_data().begin() + format_desc_.size - count);\r
 101                                         count = 0;\r
 102                                 }\r
 103                         \r
 104                                 frame->commit();\r
 105                                 frames_.push_back(frame);\r
 106                         }\r
 107                         \r
 108                         if(speed_ < 0.0)\r
 109                         {\r
 110                                 auto offset = format_desc_.height - (height_ % format_desc_.height);\r
 111                                 auto offset2 = offset * 0.5/static_cast<double>(format_desc_.height);\r
 112                                 start_offset_[1] = (std::ceil(static_cast<double>(height_) / static_cast<double>(format_desc_.height)) + 1.0) * 0.5 - offset2;// - 1.5;\r
 113                         }\r
 114                 }\r
 115                 else\r
 116                 {\r
 117                         int i = 0;\r
 118                         while(count > 0)\r
 119                         {\r
 120                                 core::pixel_format_desc desc;\r
 121                                 desc.pix_fmt = core::pixel_format::bgra;\r
 122                                 desc.planes.push_back(core::pixel_format_desc::plane(format_desc_.width, height_, 4));\r
 123                                 auto frame = frame_factory->create_frame(reinterpret_cast<void*>(rand()), desc);\r
 124                                 if(count >= frame->image_data().size())\r
 125                                 {       \r
 126                                         for(int y = 0; y < height_; ++y)\r
 127                                                 std::copy_n(bytes + i * format_desc_.width*4 + y * width_*4, format_desc_.width*4, frame->image_data().begin() + y * format_desc_.width*4);\r
 128                                         \r
 129                                         ++i;\r
 130                                         count -= static_cast<int>(frame->image_data().size());\r
 131                                 }\r
 132                                 else\r
 133                                 {\r
 134                                         memset(frame->image_data().begin(), 0, frame->image_data().size());     \r
 135                                         int width2 = width_ % format_desc_.width;\r
 136                                         for(int y = 0; y < height_; ++y)\r
 137                                                 std::copy_n(bytes + i * format_desc_.width*4 + y * width_*4, width2*4, frame->image_data().begin() + y * format_desc_.width*4);\r
 138 \r
 139                                         count = 0;\r
 140                                 }\r
 141                         \r
 142                                 frame->commit();\r
 143                                 frames_.push_back(frame);\r
 144                         }\r
 145 \r
 146                         std::reverse(frames_.begin(), frames_.end());\r
 147 \r
 148                         if(speed_ > 0.0)\r
 149                         {\r
 150                                 auto offset = format_desc_.width - (width_ % format_desc_.width);\r
 151                                 start_offset_[0] = offset * 0.5/static_cast<double>(format_desc_.width);\r
 152                         }\r
 153                         else\r
 154                         {\r
 155                                 start_offset_[0] = (std::ceil(static_cast<double>(width_) / static_cast<double>(format_desc_.width)) + 1.0) * 0.5;// - 1.5;\r
 156                         }\r
 157                 }\r
 158 \r
 159                 CASPAR_LOG(info) << print() << L" Initialized";\r
 160         }\r
 161         \r
 162         // frame_producer\r
 163 \r
 164         virtual safe_ptr<core::basic_frame> receive(int) override\r
 165         {               \r
 166                 delta_ += speed_;\r
 167 \r
 168                 if(frames_.empty())\r
 169                         return core::basic_frame::eof();\r
 170                 \r
 171                 if(height_ > format_desc_.height)\r
 172                 {\r
 173                         if(static_cast<int>(std::abs(delta_)) >= height_ - format_desc_.height)\r
 174                                 return core::basic_frame::eof();\r
 175 \r
 176                         for(int n = 0; n < frames_.size(); ++n)\r
 177                         {\r
 178                                 frames_[n]->get_frame_transform().fill_translation[0] = start_offset_[0];\r
 179                                 frames_[n]->get_frame_transform().fill_translation[1] = start_offset_[1] - (n+1) + delta_ * 0.5/static_cast<double>(format_desc_.height);\r
 180                         }\r
 181                 }\r
 182                 else\r
 183                 {\r
 184                         if(static_cast<int>(std::abs(delta_)) >= width_ - format_desc_.width)\r
 185                                 return core::basic_frame::eof();\r
 186 \r
 187                         for(int n = 0; n < frames_.size(); ++n)\r
 188                         {\r
 189                                 frames_[n]->get_frame_transform().fill_translation[0] = start_offset_[0] - (n+1) + delta_ * 0.5/static_cast<double>(format_desc_.width);                                \r
 190                                 frames_[n]->get_frame_transform().fill_translation[1] = start_offset_[1];\r
 191                         }\r
 192                 }\r
 193 \r
 194                 return last_frame_ = make_safe<core::basic_frame>(frames_);\r
 195         }\r
 196 \r
 197         virtual safe_ptr<core::basic_frame> last_frame() const override\r
 198         {\r
 199                 return last_frame_;\r
 200         }\r
 201                 \r
 202         virtual std::wstring print() const override\r
 203         {\r
 204                 return L"image_scroll_producer[" + filename_ + L"]";\r
 205         }\r
 206 \r
 207         virtual boost::property_tree::wptree info() const override\r
 208         {\r
 209                 boost::property_tree::wptree info;\r
 210                 info.add(L"type", L"image-scroll-producer");\r
 211                 info.add(L"filename", filename_);\r
 212                 return info;\r
 213         }\r
 214 \r
 215         virtual uint32_t nb_frames() const override\r
 216         {\r
 217                 if(height_ > format_desc_.height)\r
 218                 {\r
 219                         auto length = (height_ - format_desc_.height);\r
 220                         return length/std::abs(speed_);// + length % std::abs(delta_));\r
 221                 }\r
 222                 else\r
 223                 {\r
 224                         auto length = (width_ - format_desc_.width);\r
 225                         auto result = length/std::abs(speed_);// + length % std::abs(delta_));\r
 226                         return result;\r
 227                 }\r
 228         }\r
 229 };\r
 230 \r
 231 safe_ptr<core::frame_producer> create_scroll_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 232 {\r
 233         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
 234         std::wstring filename = env::media_folder() + L"\\" + params[0];\r
 235         \r
 236         auto ext = std::find_if(extensions.begin(), extensions.end(), [&](const std::wstring& ex) -> bool\r
 237                 {                                       \r
 238                         return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename).replace_extension(ex));\r
 239                 });\r
 240 \r
 241         if(ext == extensions.end())\r
 242                 return core::frame_producer::empty();\r
 243         \r
 244         int speed = 0;\r
 245         auto speed_it = std::find(params.begin(), params.end(), L"SPEED");\r
 246         if(speed_it != params.end())\r
 247         {\r
 248                 if(++speed_it != params.end())\r
 249                         speed = boost::lexical_cast<int>(*speed_it);\r
 250         }\r
 251 \r
 252         if(speed == 0)\r
 253                 return core::frame_producer::empty();\r
 254 \r
 255         return make_safe<image_scroll_producer>(frame_factory, filename + L"." + *ext, speed);\r
 256 }\r
 257 \r
 258 }}