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 \r
 105         configuration()\r
 106                 : name(L"ogl")\r
 107                 , screen_index(0)\r
 108                 , stretch(fill)\r
 109                 , windowed(true)\r
 110                 , auto_deinterlace(true)\r
 111                 , key_only(false)\r
 112                 , aspect(aspect_invalid)\r
 113                 , vsync(false)\r
 114         {\r
 115         }\r
 116 };\r
 117 \r
 118 struct ogl_consumer : boost::noncopyable\r
 119 {               \r
 120         const configuration             config_;\r
 121         core::video_format_desc format_desc_;\r
 122         int                                             channel_index_;\r
 123 \r
 124         GLuint                                  texture_;\r
 125         std::vector<GLuint>             pbos_;\r
 126                         \r
 127         float                                   width_;\r
 128         float                                   height_;        \r
 129         unsigned int                    screen_x_;\r
 130         unsigned int                    screen_y_;\r
 131         unsigned int                    screen_width_;\r
 132         unsigned int                    screen_height_;\r
 133         size_t                                  square_width_;\r
 134         size_t                                  square_height_;                         \r
 135         \r
 136         sf::Window                              window_;\r
 137         \r
 138         safe_ptr<diagnostics::graph>    graph_;\r
 139         boost::timer                                    perf_timer_;\r
 140         boost::timer                                    tick_timer_;\r
 141 \r
 142         caspar::high_prec_timer wait_timer_;\r
 143 \r
 144         tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>>       frame_buffer_;\r
 145 \r
 146         boost::thread                   thread_;\r
 147         tbb::atomic<bool>               is_running_;\r
 148         tbb::atomic<int64_t>    current_presentation_age_;\r
 149         \r
 150         ffmpeg::filter                  filter_;\r
 151 public:\r
 152         ogl_consumer(const configuration& config, const core::video_format_desc& format_desc, int channel_index) \r
 153                 : config_(config)\r
 154                 , format_desc_(format_desc)\r
 155                 , channel_index_(channel_index)\r
 156                 , texture_(0)\r
 157                 , pbos_(2, 0)   \r
 158                 , screen_width_(format_desc.width)\r
 159                 , screen_height_(format_desc.height)\r
 160                 , square_width_(format_desc.square_width)\r
 161                 , square_height_(format_desc.square_height)\r
 162                 , filter_(format_desc.field_mode == core::field_mode::progressive || !config.auto_deinterlace ? L"" : L"YADIF=1:-1", boost::assign::list_of(PIX_FMT_BGRA))\r
 163         {               \r
 164                 if(format_desc_.format == core::video_format::ntsc && config_.aspect == configuration::aspect_4_3)\r
 165                 {\r
 166                         // Use default values which are 4:3.\r
 167                 }\r
 168                 else\r
 169                 {\r
 170                         if(config_.aspect == configuration::aspect_16_9)\r
 171                                 square_width_ = (format_desc.height*16)/9;\r
 172                         else if(config_.aspect == configuration::aspect_4_3)\r
 173                                 square_width_ = (format_desc.height*4)/3;\r
 174                 }\r
 175 \r
 176                 frame_buffer_.set_capacity(2);\r
 177                 \r
 178                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 179                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 180                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 181 \r
 182                 graph_->set_text(print());\r
 183                 diagnostics::register_graph(graph_);\r
 184                                                                         \r
 185                 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};                        \r
 186                 std::vector<DISPLAY_DEVICE> displayDevices;\r
 187                 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)\r
 188                         displayDevices.push_back(d_device);\r
 189 \r
 190                 if(config_.screen_index >= displayDevices.size())\r
 191                         CASPAR_LOG(warning) << print() << L" Invalid screen-index: " << config_.screen_index;\r
 192                 \r
 193                 DEVMODE devmode = {};\r
 194                 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))\r
 195                         CASPAR_LOG(warning) << print() << L" Could not find display settings for screen-index: " << config_.screen_index;\r
 196                 \r
 197                 screen_x_               = devmode.dmPosition.x;\r
 198                 screen_y_               = devmode.dmPosition.y;\r
 199                 screen_width_   = config_.windowed ? square_width_ : devmode.dmPelsWidth;\r
 200                 screen_height_  = config_.windowed ? square_height_ : devmode.dmPelsHeight;\r
 201 \r
 202                 is_running_ = true;\r
 203                 current_presentation_age_ = 0;\r
 204                 thread_ = boost::thread([this]{run();});\r
 205         }\r
 206         \r
 207         ~ogl_consumer()\r
 208         {\r
 209                 is_running_ = false;\r
 210                 frame_buffer_.try_push(make_safe<core::read_frame>());\r
 211                 thread_.join();\r
 212         }\r
 213 \r
 214         void init()\r
 215         {\r
 216                 if(!GLEW_VERSION_2_1)\r
 217                         BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));\r
 218 \r
 219                 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(L"Screen consumer " + channel_and_format()), config_.windowed ? sf::Style::Resize | sf::Style::Close : sf::Style::Fullscreen);\r
 220                 window_.ShowMouseCursor(false);\r
 221                 window_.SetPosition(screen_x_, screen_y_);\r
 222                 window_.SetSize(screen_width_, screen_height_);\r
 223                 window_.SetActive();\r
 224                 GL(glEnable(GL_TEXTURE_2D));\r
 225                 GL(glDisable(GL_DEPTH_TEST));           \r
 226                 GL(glClearColor(0.0, 0.0, 0.0, 0.0));\r
 227                 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
 228                 GL(glLoadIdentity());\r
 229                                 \r
 230                 calculate_aspect();\r
 231                         \r
 232                 GL(glGenTextures(1, &texture_));\r
 233                 GL(glBindTexture(GL_TEXTURE_2D, texture_));\r
 234                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));\r
 235                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));\r
 236                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));\r
 237                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));\r
 238                 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));\r
 239                 GL(glBindTexture(GL_TEXTURE_2D, 0));\r
 240                                         \r
 241                 GL(glGenBuffers(2, pbos_.data()));\r
 242                         \r
 243                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);\r
 244                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 245                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);\r
 246                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 247                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);\r
 248                                 \r
 249                 if(config_.vsync)\r
 250                 {\r
 251                         auto wglSwapIntervalEXT = reinterpret_cast<void(APIENTRY*)(int)>(wglGetProcAddress("wglSwapIntervalEXT"));\r
 252                         if(wglSwapIntervalEXT)\r
 253                         {\r
 254                                 wglSwapIntervalEXT(1);\r
 255                                 CASPAR_LOG(info) << print() << " Successfully enabled vsync.";\r
 256                         }\r
 257                         else\r
 258                                 CASPAR_LOG(info) << print() << " Failed to enable vsync.";\r
 259                 }\r
 260 \r
 261                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
 262         }\r
 263 \r
 264         void uninit()\r
 265         {               \r
 266                 if(texture_)\r
 267                         glDeleteTextures(1, &texture_);\r
 268 \r
 269                 BOOST_FOREACH(auto& pbo, pbos_)\r
 270                 {\r
 271                         if(pbo)\r
 272                                 glDeleteBuffers(1, &pbo);\r
 273                 }\r
 274         }\r
 275 \r
 276         void run()\r
 277         {\r
 278                 win32_exception::ensure_handler_installed_for_thread(\r
 279                                 "ogl-consumer-thread");\r
 280 \r
 281                 try\r
 282                 {\r
 283                         init();\r
 284 \r
 285                         while(is_running_)\r
 286                         {                       \r
 287                                 try\r
 288                                 {\r
 289 \r
 290                                         sf::Event e;            \r
 291                                         while(window_.GetEvent(e))\r
 292                                         {\r
 293                                                 if(e.Type == sf::Event::Resized)\r
 294                                                         calculate_aspect();\r
 295                                                 else if(e.Type == sf::Event::Closed)\r
 296                                                         is_running_ = false;\r
 297                                         }\r
 298                         \r
 299                                         safe_ptr<core::read_frame> frame;\r
 300 \r
 301                                         frame_buffer_.pop(frame);\r
 302 \r
 303                                         render_and_draw_frame(frame);\r
 304                                         \r
 305                                         graph_->set_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);     \r
 306                                         tick_timer_.restart();\r
 307                                 }\r
 308                                 catch(...)\r
 309                                 {\r
 310                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 311                                         is_running_ = false;\r
 312                                 }\r
 313                         }\r
 314 \r
 315                         uninit();\r
 316                 }\r
 317                 catch(...)\r
 318                 {\r
 319                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 320                 }\r
 321         }\r
 322 \r
 323         void try_sleep_almost_until_vblank()\r
 324         {\r
 325                 static const double THRESHOLD = 0.003;\r
 326                 double threshold = config_.vsync ? THRESHOLD : 0.0;\r
 327 \r
 328                 auto frame_time = 1.0 / (format_desc_.fps * format_desc_.field_count);\r
 329 \r
 330                 wait_timer_.tick(frame_time - threshold);\r
 331         }\r
 332 \r
 333         void wait_for_vblank_and_display()\r
 334         {\r
 335                 try_sleep_almost_until_vblank();\r
 336                 window_.Display();\r
 337                 // Make sure that the next tick measures the duration from this point in time.\r
 338                 wait_timer_.tick(0.0);\r
 339         }\r
 340         \r
 341         safe_ptr<AVFrame> get_av_frame()\r
 342         {               \r
 343                 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 344                 avcodec_get_frame_defaults(av_frame.get());\r
 345                                                 \r
 346                 av_frame->linesize[0]           = format_desc_.width*4;                 \r
 347                 av_frame->format                        = PIX_FMT_BGRA;\r
 348                 av_frame->width                         = format_desc_.width;\r
 349                 av_frame->height                        = format_desc_.height;\r
 350                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 351                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 352 \r
 353                 return av_frame;\r
 354         }\r
 355 \r
 356         void render_and_draw_frame(const safe_ptr<core::read_frame>& frame)\r
 357         {\r
 358                 if(static_cast<size_t>(frame->image_data().size()) != format_desc_.size)\r
 359                         return;\r
 360                                         \r
 361                 perf_timer_.restart();\r
 362                 auto av_frame = get_av_frame();\r
 363                 av_frame->data[0] = const_cast<uint8_t*>(frame->image_data().begin());\r
 364 \r
 365                 filter_.push(av_frame);\r
 366                 auto frames = filter_.poll_all();\r
 367 \r
 368                 if (frames.empty())\r
 369                         return;\r
 370 \r
 371                 if (frames.size() == 1)\r
 372                 {\r
 373                         render(frames[0], frame->image_data().size());\r
 374                         graph_->set_value("frame-time", perf_timer_.elapsed() * format_desc_.fps * 0.5);\r
 375 \r
 376                         wait_for_vblank_and_display(); // progressive frame\r
 377                 }\r
 378                 else if (frames.size() == 2)\r
 379                 {\r
 380                         render(frames[0], frame->image_data().size());\r
 381                         double perf_elapsed = perf_timer_.elapsed();\r
 382 \r
 383                         wait_for_vblank_and_display(); // field1\r
 384 \r
 385                         perf_timer_.restart();\r
 386                         render(frames[1], frame->image_data().size());\r
 387                         perf_elapsed += perf_timer_.elapsed();\r
 388                         graph_->set_value("frame-time", perf_elapsed * format_desc_.fps * 0.5);\r
 389 \r
 390                         wait_for_vblank_and_display(); // field2\r
 391                 }\r
 392 \r
 393                 current_presentation_age_ = frame->get_age_millis();\r
 394         }\r
 395 \r
 396         void render(safe_ptr<AVFrame> av_frame, int image_data_size)\r
 397         {\r
 398                 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))\r
 399                 {\r
 400                         const uint8_t *src_data[4] = {0};\r
 401                         memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);\r
 402                         const int src_linesizes[4] = {0};\r
 403                         memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);\r
 404 \r
 405                         auto av_frame2 = get_av_frame();\r
 406                         av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);\r
 407                         av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)\r
 408                         {\r
 409                                 av_freep(&av_frame2->data[0]);\r
 410                         });\r
 411 \r
 412                         av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);\r
 413                 }\r
 414 \r
 415                 glBindTexture(GL_TEXTURE_2D, texture_);\r
 416 \r
 417                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);\r
 418                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);\r
 419 \r
 420                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);\r
 421                 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);\r
 422 \r
 423                 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);\r
 424                 if(ptr)\r
 425                 {\r
 426                         if(config_.key_only)\r
 427                                 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], image_data_size, 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
 428                         else\r
 429                                 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], image_data_size);\r
 430 \r
 431                         glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer\r
 432                 }\r
 433 \r
 434                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);\r
 435                                 \r
 436                 GL(glClear(GL_COLOR_BUFFER_BIT));                       \r
 437                 glBegin(GL_QUADS);\r
 438                                 glTexCoord2f(0.0f,        1.0f);        glVertex2f(-width_, -height_);\r
 439                                 glTexCoord2f(1.0f,        1.0f);        glVertex2f( width_, -height_);\r
 440                                 glTexCoord2f(1.0f,        0.0f);        glVertex2f( width_,  height_);\r
 441                                 glTexCoord2f(0.0f,        0.0f);        glVertex2f(-width_,  height_);\r
 442                 glEnd();\r
 443                 \r
 444                 glBindTexture(GL_TEXTURE_2D, 0);\r
 445 \r
 446                 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());\r
 447         }\r
 448 \r
 449         boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame)\r
 450         {\r
 451                 if (!frame_buffer_.try_push(frame))\r
 452                         graph_->set_tag("dropped-frame"); \r
 453 \r
 454                 return wrap_as_future(is_running_.load());\r
 455         }\r
 456 \r
 457         std::wstring channel_and_format() const\r
 458         {\r
 459                 return L"[" + boost::lexical_cast<std::wstring>(channel_index_) + L"|" + format_desc_.name + L"]";\r
 460         }\r
 461                 \r
 462         std::wstring print() const\r
 463         {       \r
 464                 return config_.name + channel_and_format();\r
 465         }\r
 466         \r
 467         void calculate_aspect()\r
 468         {\r
 469                 if(config_.windowed)\r
 470                 {\r
 471                         screen_height_ = window_.GetHeight();\r
 472                         screen_width_ = window_.GetWidth();\r
 473                 }\r
 474                 \r
 475                 GL(glViewport(0, 0, screen_width_, screen_height_));\r
 476 \r
 477                 std::pair<float, float> target_ratio = None();\r
 478                 if(config_.stretch == fill)\r
 479                         target_ratio = Fill();\r
 480                 else if(config_.stretch == uniform)\r
 481                         target_ratio = Uniform();\r
 482                 else if(config_.stretch == uniform_to_fill)\r
 483                         target_ratio = UniformToFill();\r
 484 \r
 485                 width_ = target_ratio.first;\r
 486                 height_ = target_ratio.second;\r
 487         }\r
 488                 \r
 489         std::pair<float, float> None()\r
 490         {\r
 491                 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 492                 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 493 \r
 494                 return std::make_pair(width, height);\r
 495         }\r
 496 \r
 497         std::pair<float, float> Uniform()\r
 498         {\r
 499                 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);\r
 500                 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));\r
 501                 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);\r
 502 \r
 503                 return std::make_pair(width, height);\r
 504         }\r
 505 \r
 506         std::pair<float, float> Fill()\r
 507         {\r
 508                 return std::make_pair(1.0f, 1.0f);\r
 509         }\r
 510 \r
 511         std::pair<float, float> UniformToFill()\r
 512         {\r
 513                 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 514                 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 515                 float r_inv = 1.0f/std::min(wr, hr);\r
 516 \r
 517                 float width = wr*r_inv;\r
 518                 float height = hr*r_inv;\r
 519 \r
 520                 return std::make_pair(width, height);\r
 521         }\r
 522 };\r
 523 \r
 524 \r
 525 struct ogl_consumer_proxy : public core::frame_consumer\r
 526 {\r
 527         const configuration config_;\r
 528         std::unique_ptr<ogl_consumer> consumer_;\r
 529 \r
 530 public:\r
 531 \r
 532         ogl_consumer_proxy(const configuration& config)\r
 533                 : config_(config){}\r
 534         \r
 535         ~ogl_consumer_proxy()\r
 536         {\r
 537                 if(consumer_)\r
 538                 {\r
 539                         auto str = print();\r
 540                         consumer_.reset();\r
 541                         CASPAR_LOG(info) << str << L" Successfully Uninitialized.";     \r
 542                 }\r
 543         }\r
 544 \r
 545         // frame_consumer\r
 546 \r
 547         virtual void initialize(const core::video_format_desc& format_desc, int channel_index) override\r
 548         {\r
 549                 consumer_.reset();\r
 550                 consumer_.reset(new ogl_consumer(config_, format_desc, channel_index));\r
 551                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 552         }\r
 553 \r
 554         virtual int64_t presentation_frame_age_millis() const override\r
 555         {\r
 556                 return consumer_ ? consumer_->current_presentation_age_ : 0;\r
 557         }\r
 558 \r
 559         virtual boost::unique_future<bool> send(const safe_ptr<core::read_frame>& frame) override\r
 560         {\r
 561                 return consumer_->send(frame);\r
 562         }\r
 563         \r
 564         virtual std::wstring print() const override\r
 565         {\r
 566                 return consumer_ ? consumer_->print() : L"[ogl_consumer]";\r
 567         }\r
 568 \r
 569         virtual boost::property_tree::wptree info() const override\r
 570         {\r
 571                 boost::property_tree::wptree info;\r
 572                 info.add(L"type", L"ogl-consumer");\r
 573                 info.add(L"key-only", config_.key_only);\r
 574                 info.add(L"windowed", config_.windowed);\r
 575                 info.add(L"auto-deinterlace", config_.auto_deinterlace);\r
 576                 return info;\r
 577         }\r
 578 \r
 579         virtual bool has_synchronization_clock() const override\r
 580         {\r
 581                 return false;\r
 582         }\r
 583         \r
 584         virtual size_t buffer_depth() const override\r
 585         {\r
 586                 return 1;\r
 587         }\r
 588 \r
 589         virtual int index() const override\r
 590         {\r
 591                 return 600 + config_.screen_index;\r
 592         }\r
 593 };      \r
 594 \r
 595 safe_ptr<core::frame_consumer> create_consumer(const core::parameters& params)\r
 596 {\r
 597         if(params.size() < 1 || params[0] != L"SCREEN")\r
 598                 return core::frame_consumer::empty();\r
 599         \r
 600         configuration config;\r
 601                 \r
 602         if(params.size() > 1)\r
 603                 config.screen_index =\r
 604                                 lexical_cast_or_default<int>(params[1], config.screen_index);\r
 605 \r
 606         config.screen_index = params.get(L"DEVICE", config.screen_index);\r
 607         config.windowed = !params.has(L"FULLSCREEN");\r
 608         config.key_only = params.has(L"KEY_ONLY");\r
 609         config.name = params.get(L"NAME", config.name);\r
 610 \r
 611         return make_safe<ogl_consumer_proxy>(config);\r
 612 }\r
 613 \r
 614 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree) \r
 615 {\r
 616         configuration config;\r
 617         config.name                             = ptree.get(L"name",     config.name);\r
 618         config.screen_index             = ptree.get(L"device",   config.screen_index+1)-1;\r
 619         config.windowed                 = ptree.get(L"windowed", config.windowed);\r
 620         config.key_only                 = ptree.get(L"key-only", config.key_only);\r
 621         config.auto_deinterlace = ptree.get(L"auto-deinterlace", config.auto_deinterlace);\r
 622         config.vsync                    = ptree.get(L"vsync", config.vsync);\r
 623 \r
 624         auto stretch_str = ptree.get(L"stretch", L"default");\r
 625         if(stretch_str == L"uniform")\r
 626                 config.stretch = stretch::uniform;\r
 627         else if(stretch_str == L"uniform_to_fill")\r
 628                 config.stretch = stretch::uniform_to_fill;\r
 629 \r
 630         auto aspect_str = ptree.get(L"aspect-ratio", L"default");\r
 631         if(aspect_str == L"16:9")\r
 632                 config.aspect = configuration::aspect_16_9;\r
 633         else if(aspect_str == L"4:3")\r
 634                 config.aspect = configuration::aspect_4_3;\r
 635         \r
 636         return make_safe<ogl_consumer_proxy>(config);\r
 637 }\r
 638 \r
 639 }}