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 { namespace ogl {\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         std::wstring    name;\r
  82         size_t                  screen_index;\r
  83         stretch                 stretch;\r
  84         bool                    windowed;\r
  85         bool                    auto_deinterlace;\r
  86         bool                    key_only;\r
  87 \r
  88         configuration()\r
  89                 : name(L"ogl")\r
  90                 , screen_index(0)\r
  91                 , stretch(fill)\r
  92                 , windowed(true)\r
  93                 , auto_deinterlace(true)\r
  94                 , key_only(false)\r
  95         {\r
  96         }\r
  97 };\r
  98 \r
  99 struct ogl_consumer : boost::noncopyable\r
 100 {               \r
 101         const configuration             config_;\r
 102         core::video_format_desc format_desc_;\r
 103         int                                             channel_index_;\r
 104 \r
 105         GLuint                                  texture_;\r
 106         std::vector<GLuint>             pbos_;\r
 107         \r
 108         float                                   width_;\r
 109         float                                   height_;        \r
 110         unsigned int                    screen_x_;\r
 111         unsigned int                    screen_y_;\r
 112         unsigned int                    screen_width_;\r
 113         unsigned int                    screen_height_;\r
 114         size_t                                  square_width_;\r
 115         size_t                                  square_height_;                         \r
 116         \r
 117         sf::Window                              window_;\r
 118         \r
 119         safe_ptr<diagnostics::graph>    graph_;\r
 120         boost::timer                                    perf_timer_;\r
 121         boost::timer                                    tick_timer_;\r
 122 \r
 123         tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>>       frame_buffer_;\r
 124 \r
 125         boost::thread                   thread_;\r
 126         tbb::atomic<bool>               is_running_;\r
 127         \r
 128         ffmpeg::filter                  filter_;\r
 129 public:\r
 130         ogl_consumer(const configuration& config, const core::video_format_desc& format_desc, int channel_index) \r
 131                 : config_(config)\r
 132                 , format_desc_(format_desc)\r
 133                 , channel_index_(channel_index)\r
 134                 , texture_(0)\r
 135                 , pbos_(2, 0)   \r
 136                 , screen_width_(format_desc.width)\r
 137                 , screen_height_(format_desc.height)\r
 138                 , square_width_(format_desc.square_width)\r
 139                 , square_height_(format_desc.square_height)\r
 140                 , filter_(format_desc.field_mode == core::field_mode::progressive || !config.auto_deinterlace ? L"" : L"YADIF=0:-1", boost::assign::list_of(PIX_FMT_BGRA))\r
 141         {               \r
 142                 frame_buffer_.set_capacity(2);\r
 143                 \r
 144                 graph_->add_guide("tick-time", 0.5);\r
 145                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 146                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 147                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 148                 graph_->set_text(print());\r
 149                 diagnostics::register_graph(graph_);\r
 150                                                                         \r
 151                 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};                        \r
 152                 std::vector<DISPLAY_DEVICE> displayDevices;\r
 153                 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)\r
 154                         displayDevices.push_back(d_device);\r
 155 \r
 156                 if(config_.screen_index >= displayDevices.size())\r
 157                         BOOST_THROW_EXCEPTION(out_of_range() << arg_name_info("screen_index_") << msg_info(narrow(print())));\r
 158                 \r
 159                 DEVMODE devmode = {};\r
 160                 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))\r
 161                         BOOST_THROW_EXCEPTION(invalid_operation() << arg_name_info("screen_index") << msg_info(narrow(print()) + " EnumDisplaySettings"));\r
 162                 \r
 163                 screen_x_               = devmode.dmPosition.x;\r
 164                 screen_y_               = devmode.dmPosition.y;\r
 165                 screen_width_   = config_.windowed ? square_width_ : devmode.dmPelsWidth;\r
 166                 screen_height_  = config_.windowed ? square_height_ : devmode.dmPelsHeight;\r
 167                 \r
 168                 is_running_ = true;\r
 169                 thread_ = boost::thread([this]{run();});\r
 170         }\r
 171         \r
 172         ~ogl_consumer()\r
 173         {\r
 174                 is_running_ = false;\r
 175                 frame_buffer_.try_push(make_safe<core::read_frame>());\r
 176                 thread_.join();\r
 177         }\r
 178 \r
 179         void init()\r
 180         {\r
 181                 if(!GLEW_VERSION_2_1)\r
 182                         BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));\r
 183 \r
 184                 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(print()), config_.windowed ? sf::Style::Resize | sf::Style::Close : sf::Style::Fullscreen);\r
 185                 window_.ShowMouseCursor(false);\r
 186                 window_.SetPosition(screen_x_, screen_y_);\r
 187                 window_.SetSize(screen_width_, screen_height_);\r
 188                 window_.SetActive();\r
 189                 GL(glEnable(GL_TEXTURE_2D));\r
 190                 GL(glDisable(GL_DEPTH_TEST));           \r
 191                 GL(glClearColor(0.0, 0.0, 0.0, 0.0));\r
 192                 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
 193                 GL(glLoadIdentity());\r
 194                                 \r
 195                 calculate_aspect();\r
 196                         \r
 197                 GL(glGenTextures(1, &texture_));\r
 198                 GL(glBindTexture(GL_TEXTURE_2D, texture_));\r
 199                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));\r
 200                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));\r
 201                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));\r
 202                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));\r
 203                 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));\r
 204                 GL(glBindTexture(GL_TEXTURE_2D, 0));\r
 205                                         \r
 206                 GL(glGenBuffers(2, pbos_.data()));\r
 207                         \r
 208                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);\r
 209                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 210                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);\r
 211                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 212                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);\r
 213 \r
 214                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
 215         }\r
 216 \r
 217         void uninit()\r
 218         {               \r
 219                 if(texture_)\r
 220                         glDeleteTextures(1, &texture_);\r
 221 \r
 222                 BOOST_FOREACH(auto& pbo, pbos_)\r
 223                 {\r
 224                         if(pbo)\r
 225                                 glDeleteBuffers(1, &pbo);\r
 226                 }\r
 227         }\r
 228 \r
 229         void run()\r
 230         {\r
 231                 try\r
 232                 {\r
 233                         init();\r
 234 \r
 235                         while(is_running_)\r
 236                         {                       \r
 237                                 try\r
 238                                 {\r
 239 \r
 240                                         sf::Event e;            \r
 241                                         while(window_.GetEvent(e))\r
 242                                         {\r
 243                                                 if(e.Type == sf::Event::Resized)\r
 244                                                         calculate_aspect();\r
 245                                                 else if(e.Type == sf::Event::Closed)\r
 246                                                         is_running_ = false;\r
 247                                         }\r
 248                         \r
 249                                         safe_ptr<core::read_frame> frame;\r
 250                                         frame_buffer_.pop(frame);\r
 251                                         \r
 252                                         perf_timer_.restart();\r
 253                                         render(frame);\r
 254                                         graph_->update_value("frame-time", perf_timer_.elapsed()*format_desc_.fps*0.5); \r
 255 \r
 256                                         window_.Display();\r
 257                                         \r
 258                                         graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);  \r
 259                                         tick_timer_.restart();\r
 260                                 }\r
 261                                 catch(...)\r
 262                                 {\r
 263                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 264                                         is_running_ = false;\r
 265                                 }\r
 266                         }\r
 267 \r
 268                         uninit();\r
 269                 }\r
 270                 catch(...)\r
 271                 {\r
 272                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 273                 }\r
 274         }\r
 275         \r
 276         safe_ptr<AVFrame> get_av_frame()\r
 277         {               \r
 278                 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 279                 avcodec_get_frame_defaults(av_frame.get());\r
 280                                                 \r
 281                 av_frame->linesize[0]           = format_desc_.width*4;                 \r
 282                 av_frame->format                        = PIX_FMT_BGRA;\r
 283                 av_frame->width                         = format_desc_.width;\r
 284                 av_frame->height                        = format_desc_.height;\r
 285                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 286                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 287 \r
 288                 return av_frame;\r
 289         }\r
 290 \r
 291         void render(const safe_ptr<core::read_frame>& frame)\r
 292         {                       \r
 293                 if(static_cast<size_t>(frame->image_data().size()) != format_desc_.size)\r
 294                         return;\r
 295                                         \r
 296                 auto av_frame = get_av_frame();\r
 297                 av_frame->data[0] = const_cast<uint8_t*>(frame->image_data().begin());\r
 298 \r
 299                 filter_.push(av_frame);\r
 300                 auto frames = filter_.poll_all();\r
 301 \r
 302                 if(frames.empty())\r
 303                         return;\r
 304 \r
 305                 av_frame = frames[0];\r
 306 \r
 307                 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))\r
 308                 {\r
 309                         const uint8_t *src_data[4] = {0};\r
 310                         memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);\r
 311                         const int src_linesizes[4] = {0};\r
 312                         memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);\r
 313 \r
 314                         auto av_frame2 = get_av_frame();\r
 315                         av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);\r
 316                         av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)\r
 317                         {\r
 318                                 av_freep(&av_frame2->data[0]);\r
 319                         });\r
 320 \r
 321                         av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);\r
 322                 }\r
 323 \r
 324                 glBindTexture(GL_TEXTURE_2D, texture_);\r
 325 \r
 326                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);\r
 327                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);\r
 328 \r
 329                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);\r
 330                 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);\r
 331 \r
 332                 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);\r
 333                 if(ptr)\r
 334                 {\r
 335                         if(config_.key_only)\r
 336                                 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
 337                         else\r
 338                                 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size());\r
 339 \r
 340                         glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer\r
 341                 }\r
 342 \r
 343                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);\r
 344                                 \r
 345                 GL(glClear(GL_COLOR_BUFFER_BIT));                       \r
 346                 glBegin(GL_QUADS);\r
 347                                 glTexCoord2f(0.0f,        1.0f);        glVertex2f(-width_, -height_);\r
 348                                 glTexCoord2f(1.0f,        1.0f);        glVertex2f( width_, -height_);\r
 349                                 glTexCoord2f(1.0f,        0.0f);        glVertex2f( width_,  height_);\r
 350                                 glTexCoord2f(0.0f,        0.0f);        glVertex2f(-width_,  height_);\r
 351                 glEnd();\r
 352                 \r
 353                 glBindTexture(GL_TEXTURE_2D, 0);\r
 354 \r
 355                 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());\r
 356         }\r
 357 \r
 358         bool send(const safe_ptr<core::read_frame>& frame)\r
 359         {\r
 360                 if(!frame_buffer_.try_push(frame))\r
 361                         graph_->add_tag("dropped-frame");\r
 362                 return is_running_;\r
 363         }\r
 364                 \r
 365         std::wstring print() const\r
 366         {       \r
 367                 return config_.name + L"[" + boost::lexical_cast<std::wstring>(channel_index_) + L"|" + format_desc_.name + L"]";\r
 368         }\r
 369         \r
 370         void calculate_aspect()\r
 371         {\r
 372                 if(config_.windowed)\r
 373                 {\r
 374                         screen_height_ = window_.GetHeight();\r
 375                         screen_width_ = window_.GetWidth();\r
 376                 }\r
 377                 \r
 378                 GL(glViewport(0, 0, screen_width_, screen_height_));\r
 379 \r
 380                 std::pair<float, float> target_ratio = None();\r
 381                 if(config_.stretch == fill)\r
 382                         target_ratio = Fill();\r
 383                 else if(config_.stretch == uniform)\r
 384                         target_ratio = Uniform();\r
 385                 else if(config_.stretch == uniform_to_fill)\r
 386                         target_ratio = UniformToFill();\r
 387 \r
 388                 width_ = target_ratio.first;\r
 389                 height_ = target_ratio.second;\r
 390         }\r
 391                 \r
 392         std::pair<float, float> None()\r
 393         {\r
 394                 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 395                 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 396 \r
 397                 return std::make_pair(width, height);\r
 398         }\r
 399 \r
 400         std::pair<float, float> Uniform()\r
 401         {\r
 402                 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);\r
 403                 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));\r
 404                 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);\r
 405 \r
 406                 return std::make_pair(width, height);\r
 407         }\r
 408 \r
 409         std::pair<float, float> Fill()\r
 410         {\r
 411                 return std::make_pair(1.0f, 1.0f);\r
 412         }\r
 413 \r
 414         std::pair<float, float> UniformToFill()\r
 415         {\r
 416                 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 417                 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 418                 float r_inv = 1.0f/std::min(wr, hr);\r
 419 \r
 420                 float width = wr*r_inv;\r
 421                 float height = hr*r_inv;\r
 422 \r
 423                 return std::make_pair(width, height);\r
 424         }\r
 425 };\r
 426 \r
 427 \r
 428 struct ogl_consumer_proxy : public core::frame_consumer\r
 429 {\r
 430         const configuration config_;\r
 431         std::unique_ptr<ogl_consumer> consumer_;\r
 432 \r
 433 public:\r
 434 \r
 435         ogl_consumer_proxy(const configuration& config)\r
 436                 : config_(config){}\r
 437         \r
 438         ~ogl_consumer_proxy()\r
 439         {\r
 440                 if(consumer_)\r
 441                 {\r
 442                         auto str = print();\r
 443                         consumer_.reset();\r
 444                         CASPAR_LOG(info) << str << L" Successfully Uninitialized.";     \r
 445                 }\r
 446         }\r
 447 \r
 448         // frame_consumer\r
 449 \r
 450         virtual void initialize(const core::video_format_desc& format_desc, int channel_index) override\r
 451         {\r
 452                 consumer_.reset();\r
 453                 consumer_.reset(new ogl_consumer(config_, format_desc, channel_index));\r
 454                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 455         }\r
 456         \r
 457         virtual bool send(const safe_ptr<core::read_frame>& frame) override\r
 458         {\r
 459                 return consumer_->send(frame);\r
 460         }\r
 461         \r
 462         virtual std::wstring print() const override\r
 463         {\r
 464                 return consumer_ ? consumer_->print() : L"[ogl_consumer]";\r
 465         }\r
 466 \r
 467         virtual bool has_synchronization_clock() const override\r
 468         {\r
 469                 return false;\r
 470         }\r
 471         \r
 472         virtual size_t buffer_depth() const override\r
 473         {\r
 474                 return 1;\r
 475         }\r
 476 \r
 477         virtual int index() const override\r
 478         {\r
 479                 return 600;\r
 480         }\r
 481 };      \r
 482 \r
 483 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 484 {\r
 485         if(params.size() < 1 || params[0] != L"SCREEN")\r
 486                 return core::frame_consumer::empty();\r
 487         \r
 488         configuration config;\r
 489                 \r
 490         if(params.size() > 1) \r
 491                 config.screen_index = lexical_cast_or_default<int>(params[2], config.screen_index);\r
 492 \r
 493         if(params.size() > 2) \r
 494                 config.windowed = lexical_cast_or_default<bool>(params[3], config.windowed);\r
 495 \r
 496         config.key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 497 \r
 498         return make_safe<ogl_consumer_proxy>(config);\r
 499 }\r
 500 \r
 501 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::ptree& ptree) \r
 502 {\r
 503         configuration config;\r
 504         config.name                             = widen(ptree.get("name",               narrow(config.name)));\r
 505         config.screen_index             = ptree.get("device",   config.screen_index+1)-1;\r
 506         config.windowed                 = ptree.get("windowed", config.windowed);\r
 507         config.key_only                 = ptree.get("key-only", config.key_only);\r
 508         config.auto_deinterlace = ptree.get("auto-deinterlace", config.auto_deinterlace);\r
 509         \r
 510         auto stretch_str = ptree.get("stretch", "default");\r
 511         if(stretch_str == "uniform")\r
 512                 config.stretch = stretch::uniform;\r
 513         else if(stretch_str == "uniform_to_fill")\r
 514                 config.stretch = stretch::uniform_to_fill;\r
 515         \r
 516         return make_safe<ogl_consumer_proxy>(config);\r
 517 }\r
 518 \r
 519 }}