git.sesse.net Git - casparcg/blob - modules/ogl/consumer/ogl_consumer.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 "ogl_consumer.h"\r
  23 \r
  24 #include <GL/glew.h>\r
  25 #include <SFML/Window.hpp>\r
  26 \r
  27 #include <common/diagnostics/graph.h>\r
  28 #include <common/gl/gl_check.h>\r
  29 #include <common/log/log.h>\r
  30 #include <common/memory/safe_ptr.h>\r
  31 #include <common/memory/memcpy.h>\r
  32 #include <common/memory/memshfl.h>\r
  33 #include <common/utility/timer.h>\r
  34 #include <common/utility/string.h>\r
  35 #include <common/concurrency/future_util.h>\r
  36 #include <common/concurrency/executor.h>\r
  37 #include <common/exception/win32_exception.h>\r
  38 \r
  39 #include <ffmpeg/producer/filter/filter.h>\r
  40 \r
  41 #include <core/parameters/parameters.h>\r
  42 #include <core/video_format.h>\r
  43 #include <core/mixer/read_frame.h>\r
  44 #include <core/consumer/frame_consumer.h>\r
  45 \r
  46 #include <boost/timer.hpp>\r
  47 #include <boost/circular_buffer.hpp>\r
  48 #include <boost/foreach.hpp>\r
  49 #include <boost/thread.hpp>\r
  50 #include <boost/property_tree/ptree.hpp>\r
  51 \r
  52 #include <tbb/atomic.h>\r
  53 #include <tbb/concurrent_queue.h>\r
  54 \r
  55 #include <boost/assign.hpp>\r
  56 \r
  57 #include <algorithm>\r
  58 #include <vector>\r
  59 \r
  60 #if defined(_MSC_VER)\r
  61 #pragma warning (push)\r
  62 #pragma warning (disable : 4244)\r
  63 #endif\r
  64 extern "C" \r
  65 {\r
  66         #define __STDC_CONSTANT_MACROS\r
  67         #define __STDC_LIMIT_MACROS\r
  68         #include <libavcodec/avcodec.h>\r
  69         #include <libavutil/imgutils.h>\r
  70 }\r
  71 #if defined(_MSC_VER)\r
  72 #pragma warning (pop)\r
  73 #endif\r
  74 \r
  75 typedef int (*PFNWGLEXTGETSWAPINTERVALPROC) (void);\r
  76  \r
  77 namespace caspar { namespace ogl {\r
  78                 \r
  79 enum stretch\r
  80 {\r
  81         none,\r
  82         uniform,\r
  83         fill,\r
  84         uniform_to_fill\r
  85 };\r
  86 \r
  87 struct configuration\r
  88 {\r
  89         enum aspect_ratio\r
  90         {\r
  91                 aspect_4_3 = 0,\r
  92                 aspect_16_9,\r
  93                 aspect_invalid,\r
  94         };\r
  95                 \r
  96         std::wstring    name;\r
  97         size_t                  screen_index;\r
  98         stretch                 stretch;\r
  99         bool                    windowed;\r
 100         bool                    auto_deinterlace;\r
 101         bool                    key_only;\r
 102         aspect_ratio    aspect; \r
 103         bool                    vsync;\r
 104         bool                    borderless;\r
 105 \r
 106         configuration()\r
 107                 : name(L"Screen consumer")\r
 108                 , screen_index(0)\r
 109                 , stretch(fill)\r
 110                 , windowed(true)\r
 111                 , auto_deinterlace(true)\r
 112                 , key_only(false)\r
 113                 , aspect(aspect_invalid)\r
 114                 , vsync(false)\r
 115                 , borderless(false)\r
 116         {\r
 117         }\r
 118 };\r
 119 \r
 120 struct ogl_consumer : boost::noncopyable\r
 121 {               \r
 122         const configuration             config_;\r
 123         core::video_format_desc format_desc_;\r
 124         int                                             channel_index_;\r
 125 \r
 126         GLuint                                  texture_;\r
 127         std::vector<GLuint>             pbos_;\r
 128                         \r
 129         float                                   width_;\r
 130         float                                   height_;        \r
 131         unsigned int                    screen_x_;\r
 132         unsigned int                    screen_y_;\r
 133         unsigned int                    screen_width_;\r
 134         unsigned int                    screen_height_;\r
 135         size_t                                  square_width_;\r
 136         size_t                                  square_height_;                         \r
 137         \r
 138         sf::Window                              window_;\r
 139 \r
 140         std::int64_t                    pts_;\r
 141         \r
 142         safe_ptr<diagnostics::graph>    graph_;\r
 143         boost::timer                                    perf_timer_;\r
 144         boost::timer                                    tick_timer_;\r
 145 \r
 146         caspar::high_prec_timer wait_timer_;\r
 147 \r
 148         tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>>       frame_buffer_;\r
 149 \r
 150         boost::thread                   thread_;\r
 151         tbb::atomic<bool>               is_running_;\r
 152         tbb::atomic<int64_t>    current_presentation_age_;\r
 153         \r
 154         ffmpeg::filter                  filter_;\r
 155 public:\r
 156         ogl_consumer(const configuration& config, const core::video_format_desc& format_desc, int channel_index) \r
 157                 : config_(config)\r
 158                 , format_desc_(format_desc)\r
 159                 , channel_index_(channel_index)\r
 160                 , texture_(0)\r
 161                 , pbos_(2, 0)   \r
 162                 , screen_width_(format_desc.width)\r
 163                 , screen_height_(format_desc.height)\r
 164                 , square_width_(format_desc.square_width)\r
 165                 , square_height_(format_desc.square_height)\r
 166                 , pts_(0)\r
 167                 , filter_([&]() -> ffmpeg::filter\r
 168                 {                       \r
 169                         const auto sample_aspect_ratio = \r
 170                                 boost::rational<int>(\r
 171                                         format_desc.square_width, \r
 172                                         format_desc.square_height) /\r
 173                                 boost::rational<int>(\r
 174                                         format_desc.width, \r
 175                                         format_desc.height);\r
 176 \r
 177                         return ffmpeg::filter(\r
 178                                 format_desc.width,\r
 179                                 format_desc.height,\r
 180                                 boost::rational<int>(format_desc.duration, format_desc.time_scale),\r
 181                                 boost::rational<int>(format_desc.time_scale, format_desc.duration),\r
 182                                 sample_aspect_ratio,\r
 183                                 AV_PIX_FMT_BGRA,\r
 184                                 boost::assign::list_of(AV_PIX_FMT_BGRA),\r
 185                                 format_desc.field_mode == core::field_mode::progressive || !config.auto_deinterlace ? "" : "format=pix_fmts=gbrp,YADIF=1:-1");\r
 186                 }())\r
 187         {               \r
 188                 if(format_desc_.format == core::video_format::ntsc && config_.aspect == configuration::aspect_4_3)\r
 189                 {\r
 190                         // Use default values which are 4:3.\r
 191                 }\r
 192                 else\r
 193                 {\r
 194                         if(config_.aspect == configuration::aspect_16_9)\r
 195                                 square_width_ = (format_desc.height*16)/9;\r
 196                         else if(config_.aspect == configuration::aspect_4_3)\r
 197                                 square_width_ = (format_desc.height*4)/3;\r
 198                 }\r
 199 \r
 200                 frame_buffer_.set_capacity(2);\r
 201                 \r
 202                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 203                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 204                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 205 \r
 206                 graph_->set_text(print());\r
 207                 diagnostics::register_graph(graph_);\r
 208                                                                         \r
 209                 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};                        \r
 210                 std::vector<DISPLAY_DEVICE> displayDevices;\r
 211                 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)\r
 212                         displayDevices.push_back(d_device);\r
 213 \r
 214                 if(config_.screen_index >= displayDevices.size())\r
 215                         CASPAR_LOG(warning) << print() << L" Invalid screen-index: " << config_.screen_index;\r
 216                 \r
 217                 DEVMODE devmode = {};\r
 218                 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))\r
 219                         CASPAR_LOG(warning) << print() << L" Could not find display settings for screen-index: " << config_.screen_index;\r
 220                 \r
 221                 screen_x_               = devmode.dmPosition.x;\r
 222                 screen_y_               = devmode.dmPosition.y;\r
 223                 screen_width_   = config_.windowed ? square_width_ : devmode.dmPelsWidth;\r
 224                 screen_height_  = config_.windowed ? square_height_ : devmode.dmPelsHeight;\r
 225 \r
 226                 is_running_ = true;\r
 227                 current_presentation_age_ = 0;\r
 228                 thread_ = boost::thread([this]{run();});\r
 229         }\r
 230         \r
 231         ~ogl_consumer()\r
 232         {\r
 233                 is_running_ = false;\r
 234                 frame_buffer_.try_push(make_safe<core::read_frame>());\r
 235                 thread_.join();\r
 236         }\r
 237 \r
 238         void init()\r
 239         {\r
 240                 if(!GLEW_VERSION_2_1)\r
 241                         BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));\r
 242 \r
 243                 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(print()), config_.borderless ? sf::Style::None : (config_.windowed ? sf::Style::Resize | sf::Style::Close : sf::Style::Fullscreen));\r
 244                 window_.ShowMouseCursor(false);\r
 245                 window_.SetPosition(screen_x_, screen_y_);\r
 246                 window_.SetSize(screen_width_, screen_height_);\r
 247                 window_.SetActive();\r
 248                 GL(glEnable(GL_TEXTURE_2D));\r
 249                 GL(glDisable(GL_DEPTH_TEST));           \r
 250                 GL(glClearColor(0.0, 0.0, 0.0, 0.0));\r
 251                 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
 252                 GL(glLoadIdentity());\r
 253                                 \r
 254                 calculate_aspect();\r
 255                         \r
 256                 GL(glGenTextures(1, &texture_));\r
 257                 GL(glBindTexture(GL_TEXTURE_2D, texture_));\r
 258                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));\r
 259                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));\r
 260                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));\r
 261                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));\r
 262                 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));\r
 263                 GL(glBindTexture(GL_TEXTURE_2D, 0));\r
 264                                         \r
 265                 GL(glGenBuffers(2, pbos_.data()));\r
 266                         \r
 267                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);\r
 268                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 269                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);\r
 270                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 271                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);\r
 272                                 \r
 273                 if(config_.vsync)\r
 274                 {\r
 275                         auto wglSwapIntervalEXT = reinterpret_cast<void(APIENTRY*)(int)>(wglGetProcAddress("wglSwapIntervalEXT"));\r
 276                         if(wglSwapIntervalEXT)\r
 277                         {\r
 278                                 wglSwapIntervalEXT(1);\r
 279                                 CASPAR_LOG(info) << print() << " Successfully enabled vsync.";\r
 280                         }\r
 281                         else\r
 282                                 CASPAR_LOG(info) << print() << " Failed to enable vsync.";\r
 283                 }\r
 284 \r
 285                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
 286         }\r
 287 \r
 288         void uninit()\r
 289         {               \r
 290                 if(texture_)\r
 291                         glDeleteTextures(1, &texture_);\r
 292 \r
 293                 BOOST_FOREACH(auto& pbo, pbos_)\r
 294                 {\r
 295                         if(pbo)\r
 296                                 glDeleteBuffers(1, &pbo);\r
 297                 }\r
 298         }\r
 299 \r
 300         void run()\r
 301         {\r
 302                 win32_exception::ensure_handler_installed_for_thread(\r
 303                                 "ogl-consumer-thread");\r
 304 \r
 305                 try\r
 306                 {\r
 307                         init();\r
 308 \r
 309                         while(is_running_)\r
 310                         {                       \r
 311                                 try\r
 312                                 {\r
 313 \r
 314                                         sf::Event e;            \r
 315                                         while(window_.GetEvent(e))\r
 316                                         {\r
 317                                                 if(e.Type == sf::Event::Resized)\r
 318                                                         calculate_aspect();\r
 319                                                 else if(e.Type == sf::Event::Closed)\r
 320                                                         is_running_ = false;\r
 321                                         }\r
 322                         \r
 323                                         safe_ptr<core::read_frame> frame;\r
 324 \r
 325                                         frame_buffer_.pop(frame);\r
 326                                         \r
 327                                         if(static_cast<size_t>(frame->image_data().size()) != format_desc_.size)\r
 328                                                 continue;\r
 329                                         \r
 330                                         {\r
 331                                                 auto av_frame = safe_ptr<AVFrame>(av_frame_alloc(), [frame](AVFrame* frame)\r
 332                                                 {\r
 333                                                         av_frame_free(&frame);\r
 334                                                 });\r
 335                                                 \r
 336                                                 av_frame->linesize[0]           = format_desc_.width*4;                 \r
 337                                                 av_frame->format                        = PIX_FMT_BGRA;\r
 338                                                 av_frame->width                         = format_desc_.width;\r
 339                                                 av_frame->height                        = format_desc_.height;\r
 340                                                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 341                                                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 342                                                 av_frame->data[0]                       = const_cast<uint8_t*>(frame->image_data().begin());\r
 343                                                 av_frame->pts                           = pts_++;\r
 344                                                 filter_.push(av_frame);\r
 345                                         }\r
 346 \r
 347                                         while(true)\r
 348                                         {\r
 349                                                 perf_timer_.restart();\r
 350                                                 auto av_frame = filter_.poll();\r
 351 \r
 352                                                 if (!av_frame)\r
 353                                                         break;\r
 354                                                 \r
 355                                                 render(make_safe_ptr(av_frame), frame->image_data().size());\r
 356                                                 graph_->set_value("frame-time", perf_timer_.elapsed() * format_desc_.fps * 0.5);\r
 357 \r
 358                                                 wait_for_vblank_and_display(); // progressive fram\r
 359                                         }\r
 360                                                 \r
 361                                         current_presentation_age_ = frame->get_age_millis();\r
 362                                                                                 \r
 363                                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);     \r
 364                                         tick_timer_.restart();\r
 365                                 }\r
 366                                 catch(...)\r
 367                                 {\r
 368                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 369                                         is_running_ = false;\r
 370                                 }\r
 371                         }\r
 372 \r
 373                         uninit();\r
 374                 }\r
 375                 catch(...)\r
 376                 {\r
 377                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 378                 }\r
 379         }\r
 380 \r
 381         void try_sleep_almost_until_vblank()\r
 382         {\r
 383                 static const double THRESHOLD = 0.003;\r
 384                 double threshold = config_.vsync ? THRESHOLD : 0.0;\r
 385 \r
 386                 auto frame_time = 1.0 / (format_desc_.fps * format_desc_.field_count);\r
 387 \r
 388                 wait_timer_.tick(frame_time - threshold);\r
 389         }\r
 390 \r
 391         void wait_for_vblank_and_display()\r
 392         {\r
 393                 try_sleep_almost_until_vblank();\r
 394                 window_.Display();\r
 395                 // Make sure that the next tick measures the duration from this point in time.\r
 396                 wait_timer_.tick(0.0);\r
 397         }\r
 398 \r
 399         void render(safe_ptr<AVFrame> av_frame, int image_data_size)\r
 400         {\r
 401                 glBindTexture(GL_TEXTURE_2D, texture_);\r
 402 \r
 403                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);\r
 404                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);\r
 405 \r
 406                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);\r
 407                 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);\r
 408 \r
 409 \r
 410                 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);\r
 411                 if(ptr)\r
 412                 {\r
 413                         if(config_.key_only)\r
 414                         {                               \r
 415                                 tbb::parallel_for(0, av_frame->height, 1, [&](int y)\r
 416                                 {\r
 417                                         fast_memshfl(reinterpret_cast<char*>(ptr) + y * format_desc_.width * 4, av_frame->data[0] + y * av_frame->linesize[0], format_desc_.width * 4, 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
 418                                 });\r
 419                         }\r
 420                         else\r
 421                         {\r
 422                                 tbb::parallel_for(0, av_frame->height, 1, [&](int y)\r
 423                                 {\r
 424                                         fast_memcpy(reinterpret_cast<char*>(ptr) + y * format_desc_.width * 4, av_frame->data[0] + y * av_frame->linesize[0], format_desc_.width * 4);\r
 425                                 });\r
 426                         }\r
 427 \r
 428                         glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer\r
 429                 }\r
 430 \r
 431                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);\r
 432                                 \r
 433                 GL(glClear(GL_COLOR_BUFFER_BIT));                       \r
 434                 glBegin(GL_QUADS);\r
 435                                 glTexCoord2f(0.0f,        1.0f);        glVertex2f(-width_, -height_);\r
 436                                 glTexCoord2f(1.0f,        1.0f);        glVertex2f( width_, -height_);\r
 437                                 glTexCoord2f(1.0f,        0.0f);        glVertex2f( width_,  height_);\r
 438                                 glTexCoord2f(0.0f,        0.0f);        glVertex2f(-width_,  height_);\r
 439                 glEnd();\r
 440                 \r
 441                 glBindTexture(GL_TEXTURE_2D, 0);\r
 442 \r
 443                 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());\r
 444         }\r
 445 \r
 446         boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame)\r
 447         {\r
 448                 if (!frame_buffer_.try_push(frame))\r
 449                         graph_->set_tag("dropped-frame"); \r
 450 \r
 451                 return wrap_as_future(is_running_.load());\r
 452         }\r
 453 \r
 454         std::wstring channel_and_format() const\r
 455         {\r
 456                 return L"[" + boost::lexical_cast<std::wstring>(channel_index_) + L"|" + format_desc_.name + L"]";\r
 457         }\r
 458                 \r
 459         std::wstring print() const\r
 460         {       \r
 461                 return config_.name + L" " + channel_and_format();\r
 462         }\r
 463         \r
 464         void calculate_aspect()\r
 465         {\r
 466                 if(config_.windowed)\r
 467                 {\r
 468                         screen_height_ = window_.GetHeight();\r
 469                         screen_width_ = window_.GetWidth();\r
 470                 }\r
 471                 \r
 472                 GL(glViewport(0, 0, screen_width_, screen_height_));\r
 473 \r
 474                 std::pair<float, float> target_ratio = None();\r
 475                 if(config_.stretch == fill)\r
 476                         target_ratio = Fill();\r
 477                 else if(config_.stretch == uniform)\r
 478                         target_ratio = Uniform();\r
 479                 else if(config_.stretch == uniform_to_fill)\r
 480                         target_ratio = UniformToFill();\r
 481 \r
 482                 width_ = target_ratio.first;\r
 483                 height_ = target_ratio.second;\r
 484         }\r
 485                 \r
 486         std::pair<float, float> None()\r
 487         {\r
 488                 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 489                 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 490 \r
 491                 return std::make_pair(width, height);\r
 492         }\r
 493 \r
 494         std::pair<float, float> Uniform()\r
 495         {\r
 496                 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);\r
 497                 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));\r
 498                 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);\r
 499 \r
 500                 return std::make_pair(width, height);\r
 501         }\r
 502 \r
 503         std::pair<float, float> Fill()\r
 504         {\r
 505                 return std::make_pair(1.0f, 1.0f);\r
 506         }\r
 507 \r
 508         std::pair<float, float> UniformToFill()\r
 509         {\r
 510                 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 511                 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 512                 float r_inv = 1.0f/std::min(wr, hr);\r
 513 \r
 514                 float width = wr*r_inv;\r
 515                 float height = hr*r_inv;\r
 516 \r
 517                 return std::make_pair(width, height);\r
 518         }\r
 519 };\r
 520 \r
 521 \r
 522 struct ogl_consumer_proxy : public core::frame_consumer\r
 523 {\r
 524         const configuration config_;\r
 525         std::unique_ptr<ogl_consumer> consumer_;\r
 526 \r
 527 public:\r
 528 \r
 529         ogl_consumer_proxy(const configuration& config)\r
 530                 : config_(config){}\r
 531         \r
 532         ~ogl_consumer_proxy()\r
 533         {\r
 534                 if(consumer_)\r
 535                 {\r
 536                         auto str = print();\r
 537                         consumer_.reset();\r
 538                         CASPAR_LOG(info) << str << L" Successfully Uninitialized.";     \r
 539                 }\r
 540         }\r
 541 \r
 542         // frame_consumer\r
 543 \r
 544         virtual void initialize(const core::video_format_desc& format_desc, int channel_index) override\r
 545         {\r
 546                 consumer_.reset();\r
 547                 consumer_.reset(new ogl_consumer(config_, format_desc, channel_index));\r
 548                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 549         }\r
 550 \r
 551         virtual int64_t presentation_frame_age_millis() const override\r
 552         {\r
 553                 return consumer_ ? consumer_->current_presentation_age_ : 0;\r
 554         }\r
 555 \r
 556         virtual boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame) override\r
 557         {\r
 558                 return consumer_->send(frame);\r
 559         }\r
 560         \r
 561         virtual std::wstring print() const override\r
 562         {\r
 563                 return consumer_ ? consumer_->print() : L"[ogl_consumer]";\r
 564         }\r
 565 \r
 566         virtual boost::property_tree::wptree info() const override\r
 567         {\r
 568                 boost::property_tree::wptree info;\r
 569                 info.add(L"type", L"ogl-consumer");\r
 570                 info.add(L"key-only", config_.key_only);\r
 571                 info.add(L"windowed", config_.windowed);\r
 572                 info.add(L"auto-deinterlace", config_.auto_deinterlace);\r
 573                 return info;\r
 574         }\r
 575 \r
 576         virtual bool has_synchronization_clock() const override\r
 577         {\r
 578                 return false;\r
 579         }\r
 580         \r
 581         virtual size_t buffer_depth() const override\r
 582         {\r
 583                 return 1;\r
 584         }\r
 585 \r
 586         virtual int index() const override\r
 587         {\r
 588                 return 600 + config_.screen_index;\r
 589         }\r
 590 };      \r
 591 \r
 592 safe_ptr<core::frame_consumer> create_consumer(const core::parameters& params)\r
 593 {\r
 594         if(params.size() < 1 || params[0] != L"SCREEN")\r
 595                 return core::frame_consumer::empty();\r
 596         \r
 597         configuration config;\r
 598                 \r
 599         if(params.size() > 1)\r
 600                 config.screen_index =\r
 601                                 lexical_cast_or_default<int>(params[1], config.screen_index);\r
 602 \r
 603         config.screen_index = params.get(L"DEVICE", config.screen_index);\r
 604         config.windowed = !params.has(L"FULLSCREEN");\r
 605         config.key_only = params.has(L"KEY_ONLY");\r
 606         config.name = params.get(L"NAME", config.name);\r
 607         config.borderless = params.has(L"BORDERLESS");\r
 608 \r
 609         return make_safe<ogl_consumer_proxy>(config);\r
 610 }\r
 611 \r
 612 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree) \r
 613 {\r
 614         configuration config;\r
 615         config.name                             = ptree.get(L"name",     config.name);\r
 616         config.screen_index             = ptree.get(L"device",   config.screen_index+1)-1;\r
 617         config.windowed                 = ptree.get(L"windowed", config.windowed);\r
 618         config.key_only                 = ptree.get(L"key-only", config.key_only);\r
 619         config.auto_deinterlace = ptree.get(L"auto-deinterlace", config.auto_deinterlace);\r
 620         config.vsync                    = ptree.get(L"vsync", config.vsync);\r
 621         config.borderless       = ptree.get(L"borderless", config.borderless);\r
 622 \r
 623         auto stretch_str = ptree.get(L"stretch", L"default");\r
 624         if(stretch_str == L"uniform")\r
 625                 config.stretch = stretch::uniform;\r
 626         else if(stretch_str == L"uniform_to_fill")\r
 627                 config.stretch = stretch::uniform_to_fill;\r
 628 \r
 629         auto aspect_str = ptree.get(L"aspect-ratio", L"default");\r
 630         if(aspect_str == L"16:9")\r
 631                 config.aspect = configuration::aspect_16_9;\r
 632         else if(aspect_str == L"4:3")\r
 633                 config.aspect = configuration::aspect_4_3;\r
 634         \r
 635         return make_safe<ogl_consumer_proxy>(config);\r
 636 }\r
 637 \r
 638 }}