git.sesse.net Git - casparcg/blob - modules/ogl/consumer/ogl_consumer.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\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 */\r
  20 \r
  21 #include "ogl_consumer.h"\r
  22 \r
  23 #include <GL/glew.h>\r
  24 #include <SFML/Window.hpp>\r
  25 \r
  26 #include <common/diagnostics/graph.h>\r
  27 #include <common/gl/gl_check.h>\r
  28 #include <common/log/log.h>\r
  29 #include <common/memory/safe_ptr.h>\r
  30 #include <common/memory/memcpy.h>\r
  31 #include <common/memory/memshfl.h>\r
  32 #include <common/utility/timer.h>\r
  33 #include <common/utility/string.h>\r
  34 \r
  35 #include <ffmpeg/producer/filter/filter.h>\r
  36 \r
  37 #include <core/video_format.h>\r
  38 #include <core/mixer/read_frame.h>\r
  39 #include <core/consumer/frame_consumer.h>\r
  40 \r
  41 #include <boost/timer.hpp>\r
  42 #include <boost/circular_buffer.hpp>\r
  43 #include <boost/foreach.hpp>\r
  44 #include <boost/thread.hpp>\r
  45 \r
  46 #include <tbb/atomic.h>\r
  47 #include <tbb/concurrent_queue.h>\r
  48 \r
  49 #include <boost/assign.hpp>\r
  50 \r
  51 #include <algorithm>\r
  52 #include <vector>\r
  53 \r
  54 #if defined(_MSC_VER)\r
  55 #pragma warning (push)\r
  56 #pragma warning (disable : 4244)\r
  57 #endif\r
  58 extern "C" \r
  59 {\r
  60         #define __STDC_CONSTANT_MACROS\r
  61         #define __STDC_LIMIT_MACROS\r
  62         #include <libavcodec/avcodec.h>\r
  63         #include <libavutil/imgutils.h>\r
  64 }\r
  65 #if defined(_MSC_VER)\r
  66 #pragma warning (pop)\r
  67 #endif\r
  68 \r
  69 namespace caspar {\r
  70                 \r
  71 enum stretch\r
  72 {\r
  73         none,\r
  74         uniform,\r
  75         fill,\r
  76         uniform_to_fill\r
  77 };\r
  78 \r
  79 struct configuration\r
  80 {\r
  81         size_t          screen_index;\r
  82         stretch         stretch;\r
  83         bool            windowed;\r
  84         bool            key_only;\r
  85 \r
  86         configuration()\r
  87                 : screen_index(0)\r
  88                 , stretch(fill)\r
  89                 , windowed(true)\r
  90                 , key_only(false)\r
  91         {\r
  92         }\r
  93 };\r
  94 \r
  95 struct ogl_consumer : boost::noncopyable\r
  96 {               \r
  97         const configuration             config_;\r
  98         core::video_format_desc format_desc_;\r
  99         \r
 100         GLuint                                  texture_;\r
 101         std::vector<GLuint>             pbos_;\r
 102         \r
 103         float                                   width_;\r
 104         float                                   height_;        \r
 105         unsigned int                    screen_x_;\r
 106         unsigned int                    screen_y_;\r
 107         unsigned int                    screen_width_;\r
 108         unsigned int                    screen_height_;\r
 109         size_t                                  square_width_;\r
 110         size_t                                  square_height_;                         \r
 111         \r
 112         sf::Window                              window_;\r
 113         \r
 114         safe_ptr<diagnostics::graph>    graph_;\r
 115         boost::timer                                    perf_timer_;\r
 116 \r
 117         boost::circular_buffer<safe_ptr<core::read_frame>>                      input_buffer_;\r
 118         tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>>       frame_buffer_;\r
 119 \r
 120         boost::thread                   thread_;\r
 121         tbb::atomic<bool>               is_running_;\r
 122 \r
 123         \r
 124         filter                                  filter_;\r
 125 public:\r
 126         ogl_consumer(const configuration& config, const core::video_format_desc& format_desc) \r
 127                 : config_(config)\r
 128                 , format_desc_(format_desc)\r
 129                 , texture_(0)\r
 130                 , pbos_(2, 0)   \r
 131                 , screen_width_(format_desc.width)\r
 132                 , screen_height_(format_desc.height)\r
 133                 , square_width_(format_desc.square_width)\r
 134                 , square_height_(format_desc.square_height)\r
 135                 , graph_(diagnostics::create_graph(narrow(print())))\r
 136                 , input_buffer_(core::consumer_buffer_depth()-1)\r
 137                 , filter_(format_desc.field_mode == core::field_mode::progressive ? L"" : L"YADIF=0:-1", boost::assign::list_of(PIX_FMT_BGRA))\r
 138         {               \r
 139                 frame_buffer_.set_capacity(2);\r
 140 \r
 141                 graph_->add_guide("frame-time", 0.5);\r
 142                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 143                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 144                                                                         \r
 145                 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};                        \r
 146                 std::vector<DISPLAY_DEVICE> displayDevices;\r
 147                 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)\r
 148                         displayDevices.push_back(d_device);\r
 149 \r
 150                 if(config_.screen_index >= displayDevices.size())\r
 151                         BOOST_THROW_EXCEPTION(out_of_range() << arg_name_info("screen_index_") << msg_info(narrow(print())));\r
 152                 \r
 153                 DEVMODE devmode = {};\r
 154                 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))\r
 155                         BOOST_THROW_EXCEPTION(invalid_operation() << arg_name_info("screen_index") << msg_info(narrow(print()) + " EnumDisplaySettings"));\r
 156                 \r
 157                 screen_x_               = devmode.dmPosition.x;\r
 158                 screen_y_               = devmode.dmPosition.y;\r
 159                 screen_width_   = config_.windowed ? square_width_ : devmode.dmPelsWidth;\r
 160                 screen_height_  = config_.windowed ? square_height_ : devmode.dmPelsHeight;\r
 161                 \r
 162                 is_running_ = true;\r
 163                 thread_ = boost::thread([this]{run();});\r
 164         }\r
 165         \r
 166         ~ogl_consumer()\r
 167         {\r
 168                 is_running_ = false;\r
 169                 frame_buffer_.try_push(make_safe<core::read_frame>());\r
 170                 thread_.join();\r
 171         }\r
 172 \r
 173         void init()\r
 174         {\r
 175                 if(!GLEW_VERSION_2_1)\r
 176                         BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));\r
 177 \r
 178                 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(print()), config_.windowed ? sf::Style::Resize : sf::Style::Fullscreen);\r
 179                 window_.ShowMouseCursor(false);\r
 180                 window_.SetPosition(screen_x_, screen_y_);\r
 181                 window_.SetSize(screen_width_, screen_height_);\r
 182                 window_.SetActive();\r
 183                 GL(glEnable(GL_TEXTURE_2D));\r
 184                 GL(glDisable(GL_DEPTH_TEST));           \r
 185                 GL(glClearColor(0.0, 0.0, 0.0, 0.0));\r
 186                 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
 187                 GL(glLoadIdentity());\r
 188                                 \r
 189                 calculate_aspect();\r
 190                         \r
 191                 GL(glGenTextures(1, &texture_));\r
 192                 GL(glBindTexture(GL_TEXTURE_2D, texture_));\r
 193                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST));\r
 194                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST));\r
 195                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));\r
 196                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));\r
 197                 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));\r
 198                 GL(glBindTexture(GL_TEXTURE_2D, 0));\r
 199                                         \r
 200                 GL(glGenBuffers(2, pbos_.data()));\r
 201                         \r
 202                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);\r
 203                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 204                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);\r
 205                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 206                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);\r
 207 \r
 208                 CASPAR_LOG(info) << print() << " Sucessfully Initialized.";\r
 209         }\r
 210 \r
 211         void uninit()\r
 212         {               \r
 213                 if(texture_)\r
 214                         glDeleteTextures(1, &texture_);\r
 215 \r
 216                 BOOST_FOREACH(auto& pbo, pbos_)\r
 217                 {\r
 218                         if(pbo)\r
 219                                 glDeleteBuffers(1, &pbo);\r
 220                 }\r
 221 \r
 222                 CASPAR_LOG(info) << print() << " Sucessfully Uninitialized.";\r
 223         }\r
 224 \r
 225         void run()\r
 226         {\r
 227                 try\r
 228                 {\r
 229                         init();\r
 230 \r
 231                         while(is_running_)\r
 232                         {                       \r
 233                                 try\r
 234                                 {\r
 235                                         perf_timer_.restart();\r
 236 \r
 237                                         sf::Event e;            \r
 238                                         while(window_.GetEvent(e))\r
 239                                         {\r
 240                                                 if(e.Type == sf::Event::Resized)\r
 241                                                         calculate_aspect();\r
 242                                         }\r
 243                         \r
 244                                         safe_ptr<core::read_frame> frame;\r
 245                                         frame_buffer_.pop(frame);\r
 246                                         render(frame);\r
 247 \r
 248                                         window_.Display();\r
 249 \r
 250                                         graph_->update_value("frame-time", static_cast<float>(perf_timer_.elapsed()*format_desc_.fps*0.5));     \r
 251                                 }\r
 252                                 catch(...)\r
 253                                 {\r
 254                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 255                                         is_running_ = false;\r
 256                                 }\r
 257                         }\r
 258 \r
 259                         uninit();\r
 260                 }\r
 261                 catch(...)\r
 262                 {\r
 263                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 264                 }\r
 265         }\r
 266         \r
 267         const core::video_format_desc& get_video_format_desc() const\r
 268         {\r
 269                 return format_desc_;\r
 270         }\r
 271 \r
 272         safe_ptr<AVFrame> get_av_frame()\r
 273         {               \r
 274                 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 275                 avcodec_get_frame_defaults(av_frame.get());\r
 276                                                 \r
 277                 av_frame->linesize[0]           = format_desc_.width*4;                 \r
 278                 av_frame->format                        = PIX_FMT_BGRA;\r
 279                 av_frame->width                         = format_desc_.width;\r
 280                 av_frame->height                        = format_desc_.height;\r
 281                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 282                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 283 \r
 284                 return av_frame;\r
 285         }\r
 286 \r
 287         void render(const safe_ptr<core::read_frame>& frame)\r
 288         {                       \r
 289                 if(frame->image_data().empty())\r
 290                         return;\r
 291                                         \r
 292                 auto av_frame = get_av_frame();\r
 293                 av_frame->data[0] = const_cast<uint8_t*>(frame->image_data().begin());\r
 294 \r
 295                 auto frames = filter_.execute(av_frame);\r
 296 \r
 297                 if(frames.empty())\r
 298                         return;\r
 299 \r
 300                 av_frame = frames[0];\r
 301 \r
 302                 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))\r
 303                 {\r
 304                         const uint8_t *src_data[4] = {0};\r
 305                         memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);\r
 306                         const int src_linesizes[4] = {0};\r
 307                         memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);\r
 308 \r
 309                         auto av_frame2 = get_av_frame();\r
 310                         av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);\r
 311                         av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)\r
 312                         {\r
 313                                 av_freep(&av_frame2->data[0]);\r
 314                         });\r
 315 \r
 316                         av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);\r
 317                 }\r
 318 \r
 319                 glBindTexture(GL_TEXTURE_2D, texture_);\r
 320 \r
 321                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);\r
 322                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);\r
 323 \r
 324                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);\r
 325                 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);\r
 326 \r
 327                 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);\r
 328                 if(ptr)\r
 329                 {\r
 330                         if(config_.key_only)\r
 331                                 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
 332                         else\r
 333                                 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size());\r
 334 \r
 335                         glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer\r
 336                 }\r
 337 \r
 338                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);\r
 339                                 \r
 340                 GL(glClear(GL_COLOR_BUFFER_BIT));                       \r
 341                 glBegin(GL_QUADS);\r
 342                                 glTexCoord2f(0.0f,        1.0f);        glVertex2f(-width_, -height_);\r
 343                                 glTexCoord2f(1.0f,        1.0f);        glVertex2f( width_, -height_);\r
 344                                 glTexCoord2f(1.0f,        0.0f);        glVertex2f( width_,  height_);\r
 345                                 glTexCoord2f(0.0f,        0.0f);        glVertex2f(-width_,  height_);\r
 346                 glEnd();\r
 347                 \r
 348                 glBindTexture(GL_TEXTURE_2D, 0);\r
 349 \r
 350                 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());\r
 351         }\r
 352 \r
 353         void send(const safe_ptr<core::read_frame>& frame)\r
 354         {\r
 355                 input_buffer_.push_back(frame);\r
 356 \r
 357                 if(input_buffer_.full())\r
 358                 {\r
 359                         if(!frame_buffer_.try_push(input_buffer_.front()))\r
 360                                 graph_->add_tag("dropped-frame");\r
 361                 }\r
 362         }\r
 363                 \r
 364         std::wstring print() const\r
 365         {       \r
 366                 return  L"ogl[" + boost::lexical_cast<std::wstring>(config_.screen_index) + L"|" + format_desc_.name + L"]";\r
 367         }\r
 368         \r
 369         void calculate_aspect()\r
 370         {\r
 371                 if(config_.windowed)\r
 372                 {\r
 373                         screen_height_ = window_.GetHeight();\r
 374                         screen_width_ = window_.GetWidth();\r
 375                 }\r
 376                 \r
 377                 GL(glViewport(0, 0, screen_width_, screen_height_));\r
 378 \r
 379                 std::pair<float, float> target_ratio = None();\r
 380                 if(config_.stretch == fill)\r
 381                         target_ratio = Fill();\r
 382                 else if(config_.stretch == uniform)\r
 383                         target_ratio = Uniform();\r
 384                 else if(config_.stretch == uniform_to_fill)\r
 385                         target_ratio = UniformToFill();\r
 386 \r
 387                 width_ = target_ratio.first;\r
 388                 height_ = target_ratio.second;\r
 389         }\r
 390                 \r
 391         std::pair<float, float> None()\r
 392         {\r
 393                 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 394                 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 395 \r
 396                 return std::make_pair(width, height);\r
 397         }\r
 398 \r
 399         std::pair<float, float> Uniform()\r
 400         {\r
 401                 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);\r
 402                 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));\r
 403                 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);\r
 404 \r
 405                 return std::make_pair(width, height);\r
 406         }\r
 407 \r
 408         std::pair<float, float> Fill()\r
 409         {\r
 410                 return std::make_pair(1.0f, 1.0f);\r
 411         }\r
 412 \r
 413         std::pair<float, float> UniformToFill()\r
 414         {\r
 415                 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 416                 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 417                 float r_inv = 1.0f/std::min(wr, hr);\r
 418 \r
 419                 float width = wr*r_inv;\r
 420                 float height = hr*r_inv;\r
 421 \r
 422                 return std::make_pair(width, height);\r
 423         }\r
 424 };\r
 425 \r
 426 \r
 427 struct ogl_consumer_proxy : public core::frame_consumer\r
 428 {\r
 429         const configuration config_;\r
 430         std::unique_ptr<ogl_consumer> consumer_;\r
 431 \r
 432 public:\r
 433 \r
 434         ogl_consumer_proxy(const configuration& config)\r
 435                 : config_(config){}\r
 436         \r
 437         virtual void initialize(const core::video_format_desc& format_desc)\r
 438         {\r
 439                 consumer_.reset(new ogl_consumer(config_, format_desc));\r
 440         }\r
 441         \r
 442         virtual bool send(const safe_ptr<core::read_frame>& frame)\r
 443         {\r
 444                 consumer_->send(frame);\r
 445                 return true;\r
 446         }\r
 447         \r
 448         virtual std::wstring print() const\r
 449         {\r
 450                 return consumer_->print();\r
 451         }\r
 452 \r
 453         virtual bool has_synchronization_clock() const \r
 454         {\r
 455                 return false;\r
 456         }\r
 457 \r
 458         virtual const core::video_format_desc& get_video_format_desc() const\r
 459         {\r
 460                 return consumer_->get_video_format_desc();\r
 461         }\r
 462 };      \r
 463 \r
 464 safe_ptr<core::frame_consumer> create_ogl_consumer(const std::vector<std::wstring>& params)\r
 465 {\r
 466         if(params.size() < 1 || params[0] != L"SCREEN")\r
 467                 return core::frame_consumer::empty();\r
 468         \r
 469         configuration config;\r
 470                 \r
 471         if(params.size() > 1) \r
 472                 config.screen_index = lexical_cast_or_default<int>(params[2], config.screen_index);\r
 473 \r
 474         if(params.size() > 2) \r
 475                 config.windowed = lexical_cast_or_default<bool>(params[3], config.windowed);\r
 476 \r
 477         config.key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 478 \r
 479         return make_safe<ogl_consumer_proxy>(config);\r
 480 }\r
 481 \r
 482 safe_ptr<core::frame_consumer> create_ogl_consumer(const boost::property_tree::ptree& ptree) \r
 483 {\r
 484         configuration config;\r
 485         config.screen_index = ptree.get("device",   config.screen_index);\r
 486         config.windowed         = ptree.get("windowed", config.windowed);\r
 487         config.key_only         = ptree.get("key-only", config.key_only );\r
 488         \r
 489         auto stretch_str = ptree.get("stretch", "default");\r
 490         if(stretch_str == "uniform")\r
 491                 config.stretch = stretch::uniform;\r
 492         else if(stretch_str == "uniform_to_fill")\r
 493                 config.stretch = stretch::uniform_to_fill;\r
 494         \r
 495         return make_safe<ogl_consumer_proxy>(config);\r
 496 }\r
 497 \r
 498 }