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

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\r
   5 *\r
   6 * CasparCG is free software: you can redistribute it and/or modify\r
   7 * it under the terms of the GNU General Public License as published by\r
   8 * the Free Software Foundation, either version 3 of the License, or\r
   9 * (at your option) any later version.\r
  10 *\r
  11 * CasparCG is distributed in the hope that it will be useful,\r
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 * GNU General Public License for more details.\r
  15 *\r
  16 * You should have received a copy of the GNU General Public License\r
  17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "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 \r
  36 #include <ffmpeg/producer/filter/filter.h>\r
  37 \r
  38 #include <core/video_format.h>\r
  39 #include <core/mixer/read_frame.h>\r
  40 #include <core/consumer/frame_consumer.h>\r
  41 \r
  42 #include <boost/timer.hpp>\r
  43 #include <boost/circular_buffer.hpp>\r
  44 #include <boost/foreach.hpp>\r
  45 #include <boost/thread.hpp>\r
  46 #include <boost/property_tree/ptree.hpp>\r
  47 \r
  48 #include <tbb/atomic.h>\r
  49 #include <tbb/concurrent_queue.h>\r
  50 \r
  51 #include <boost/assign.hpp>\r
  52 \r
  53 #include <algorithm>\r
  54 #include <vector>\r
  55 \r
  56 #if defined(_MSC_VER)\r
  57 #pragma warning (push)\r
  58 #pragma warning (disable : 4244)\r
  59 #endif\r
  60 extern "C" \r
  61 {\r
  62         #define __STDC_CONSTANT_MACROS\r
  63         #define __STDC_LIMIT_MACROS\r
  64         #include <libavcodec/avcodec.h>\r
  65         #include <libavutil/imgutils.h>\r
  66 }\r
  67 #if defined(_MSC_VER)\r
  68 #pragma warning (pop)\r
  69 #endif\r
  70 \r
  71 namespace caspar { namespace ogl {\r
  72                 \r
  73 enum stretch\r
  74 {\r
  75         none,\r
  76         uniform,\r
  77         fill,\r
  78         uniform_to_fill\r
  79 };\r
  80 \r
  81 struct configuration\r
  82 {\r
  83         std::wstring    name;\r
  84         size_t                  screen_index;\r
  85         stretch                 stretch;\r
  86         bool                    windowed;\r
  87         bool                    auto_deinterlace;\r
  88         bool                    key_only;\r
  89 \r
  90         configuration()\r
  91                 : name(L"ogl")\r
  92                 , screen_index(0)\r
  93                 , stretch(fill)\r
  94                 , windowed(true)\r
  95                 , auto_deinterlace(true)\r
  96                 , key_only(false)\r
  97         {\r
  98         }\r
  99 };\r
 100 \r
 101 struct ogl_consumer : boost::noncopyable\r
 102 {               \r
 103         const configuration             config_;\r
 104         core::video_format_desc format_desc_;\r
 105         int                                             channel_index_;\r
 106 \r
 107         GLuint                                  texture_;\r
 108         std::vector<GLuint>             pbos_;\r
 109         \r
 110         float                                   width_;\r
 111         float                                   height_;        \r
 112         unsigned int                    screen_x_;\r
 113         unsigned int                    screen_y_;\r
 114         unsigned int                    screen_width_;\r
 115         unsigned int                    screen_height_;\r
 116         size_t                                  square_width_;\r
 117         size_t                                  square_height_;                         \r
 118         \r
 119         sf::Window                              window_;\r
 120         \r
 121         safe_ptr<diagnostics::graph>    graph_;\r
 122         boost::timer                                    perf_timer_;\r
 123         boost::timer                                    tick_timer_;\r
 124 \r
 125         tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>>       frame_buffer_;\r
 126 \r
 127         boost::thread                   thread_;\r
 128         tbb::atomic<bool>               is_running_;\r
 129         \r
 130         ffmpeg::filter                  filter_;\r
 131 public:\r
 132         ogl_consumer(const configuration& config, const core::video_format_desc& format_desc, int channel_index) \r
 133                 : config_(config)\r
 134                 , format_desc_(format_desc)\r
 135                 , channel_index_(channel_index)\r
 136                 , texture_(0)\r
 137                 , pbos_(2, 0)   \r
 138                 , screen_width_(format_desc.width)\r
 139                 , screen_height_(format_desc.height)\r
 140                 , square_width_(format_desc.square_width)\r
 141                 , square_height_(format_desc.square_height)\r
 142                 , 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
 143         {               \r
 144                 frame_buffer_.set_capacity(2);\r
 145                 \r
 146                 graph_->add_guide("tick-time", 0.5);\r
 147                 graph_->set_color("tick-time", diagnostics::color(0.0f, 0.6f, 0.9f));   \r
 148                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 149                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 150                 graph_->set_text(print());\r
 151                 diagnostics::register_graph(graph_);\r
 152                                                                         \r
 153                 DISPLAY_DEVICE d_device = {sizeof(d_device), 0};                        \r
 154                 std::vector<DISPLAY_DEVICE> displayDevices;\r
 155                 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)\r
 156                         displayDevices.push_back(d_device);\r
 157 \r
 158                 if(config_.screen_index >= displayDevices.size())\r
 159                         CASPAR_LOG(warning) << print() << L" Invalid screen-index: " << config_.screen_index;\r
 160                 \r
 161                 DEVMODE devmode = {};\r
 162                 if(!EnumDisplaySettings(displayDevices[config_.screen_index].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))\r
 163                         CASPAR_LOG(warning) << print() << L" Could not find display settings for screen-index: " << config_.screen_index;\r
 164                 \r
 165                 screen_x_               = devmode.dmPosition.x;\r
 166                 screen_y_               = devmode.dmPosition.y;\r
 167                 screen_width_   = config_.windowed ? square_width_ : devmode.dmPelsWidth;\r
 168                 screen_height_  = config_.windowed ? square_height_ : devmode.dmPelsHeight;\r
 169                 \r
 170                 is_running_ = true;\r
 171                 thread_ = boost::thread([this]{run();});\r
 172         }\r
 173         \r
 174         ~ogl_consumer()\r
 175         {\r
 176                 is_running_ = false;\r
 177                 frame_buffer_.try_push(make_safe<core::read_frame>());\r
 178                 thread_.join();\r
 179         }\r
 180 \r
 181         void init()\r
 182         {\r
 183                 if(!GLEW_VERSION_2_1)\r
 184                         BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));\r
 185 \r
 186                 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(print()), config_.windowed ? sf::Style::Resize | sf::Style::Close : sf::Style::Fullscreen);\r
 187                 window_.ShowMouseCursor(false);\r
 188                 window_.SetPosition(screen_x_, screen_y_);\r
 189                 window_.SetSize(screen_width_, screen_height_);\r
 190                 window_.SetActive();\r
 191                 GL(glEnable(GL_TEXTURE_2D));\r
 192                 GL(glDisable(GL_DEPTH_TEST));           \r
 193                 GL(glClearColor(0.0, 0.0, 0.0, 0.0));\r
 194                 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
 195                 GL(glLoadIdentity());\r
 196                                 \r
 197                 calculate_aspect();\r
 198                         \r
 199                 GL(glGenTextures(1, &texture_));\r
 200                 GL(glBindTexture(GL_TEXTURE_2D, texture_));\r
 201                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR));\r
 202                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR));\r
 203                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));\r
 204                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));\r
 205                 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));\r
 206                 GL(glBindTexture(GL_TEXTURE_2D, 0));\r
 207                                         \r
 208                 GL(glGenBuffers(2, pbos_.data()));\r
 209                         \r
 210                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);\r
 211                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 212                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);\r
 213                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 214                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);\r
 215 \r
 216                 CASPAR_LOG(info) << print() << " Successfully Initialized.";\r
 217         }\r
 218 \r
 219         void uninit()\r
 220         {               \r
 221                 if(texture_)\r
 222                         glDeleteTextures(1, &texture_);\r
 223 \r
 224                 BOOST_FOREACH(auto& pbo, pbos_)\r
 225                 {\r
 226                         if(pbo)\r
 227                                 glDeleteBuffers(1, &pbo);\r
 228                 }\r
 229         }\r
 230 \r
 231         void run()\r
 232         {\r
 233                 try\r
 234                 {\r
 235                         init();\r
 236 \r
 237                         while(is_running_)\r
 238                         {                       \r
 239                                 try\r
 240                                 {\r
 241 \r
 242                                         sf::Event e;            \r
 243                                         while(window_.GetEvent(e))\r
 244                                         {\r
 245                                                 if(e.Type == sf::Event::Resized)\r
 246                                                         calculate_aspect();\r
 247                                                 else if(e.Type == sf::Event::Closed)\r
 248                                                         is_running_ = false;\r
 249                                         }\r
 250                         \r
 251                                         safe_ptr<core::read_frame> frame;\r
 252                                         frame_buffer_.pop(frame);\r
 253                                         \r
 254                                         perf_timer_.restart();\r
 255                                         render(frame);\r
 256                                         graph_->update_value("frame-time", perf_timer_.elapsed()*format_desc_.fps*0.5); \r
 257 \r
 258                                         window_.Display();\r
 259                                         \r
 260                                         graph_->update_value("tick-time", tick_timer_.elapsed()*format_desc_.fps*0.5);  \r
 261                                         tick_timer_.restart();\r
 262                                 }\r
 263                                 catch(...)\r
 264                                 {\r
 265                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 266                                         is_running_ = false;\r
 267                                 }\r
 268                         }\r
 269 \r
 270                         uninit();\r
 271                 }\r
 272                 catch(...)\r
 273                 {\r
 274                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 275                 }\r
 276         }\r
 277         \r
 278         safe_ptr<AVFrame> get_av_frame()\r
 279         {               \r
 280                 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 281                 avcodec_get_frame_defaults(av_frame.get());\r
 282                                                 \r
 283                 av_frame->linesize[0]           = format_desc_.width*4;                 \r
 284                 av_frame->format                        = PIX_FMT_BGRA;\r
 285                 av_frame->width                         = format_desc_.width;\r
 286                 av_frame->height                        = format_desc_.height;\r
 287                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 288                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 289 \r
 290                 return av_frame;\r
 291         }\r
 292 \r
 293         void render(const safe_ptr<core::read_frame>& frame)\r
 294         {                       \r
 295                 if(static_cast<size_t>(frame->image_data().size()) != format_desc_.size)\r
 296                         return;\r
 297                                         \r
 298                 auto av_frame = get_av_frame();\r
 299                 av_frame->data[0] = const_cast<uint8_t*>(frame->image_data().begin());\r
 300 \r
 301                 filter_.push(av_frame);\r
 302                 auto frames = filter_.poll_all();\r
 303 \r
 304                 if(frames.empty())\r
 305                         return;\r
 306 \r
 307                 av_frame = frames[0];\r
 308 \r
 309                 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))\r
 310                 {\r
 311                         const uint8_t *src_data[4] = {0};\r
 312                         memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);\r
 313                         const int src_linesizes[4] = {0};\r
 314                         memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);\r
 315 \r
 316                         auto av_frame2 = get_av_frame();\r
 317                         av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);\r
 318                         av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)\r
 319                         {\r
 320                                 av_freep(&av_frame2->data[0]);\r
 321                         });\r
 322 \r
 323                         av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);\r
 324                 }\r
 325 \r
 326                 glBindTexture(GL_TEXTURE_2D, texture_);\r
 327 \r
 328                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);\r
 329                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);\r
 330 \r
 331                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);\r
 332                 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);\r
 333 \r
 334                 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);\r
 335                 if(ptr)\r
 336                 {\r
 337                         if(config_.key_only)\r
 338                                 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
 339                         else\r
 340                                 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size());\r
 341 \r
 342                         glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer\r
 343                 }\r
 344 \r
 345                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);\r
 346                                 \r
 347                 GL(glClear(GL_COLOR_BUFFER_BIT));                       \r
 348                 glBegin(GL_QUADS);\r
 349                                 glTexCoord2f(0.0f,        1.0f);        glVertex2f(-width_, -height_);\r
 350                                 glTexCoord2f(1.0f,        1.0f);        glVertex2f( width_, -height_);\r
 351                                 glTexCoord2f(1.0f,        0.0f);        glVertex2f( width_,  height_);\r
 352                                 glTexCoord2f(0.0f,        0.0f);        glVertex2f(-width_,  height_);\r
 353                 glEnd();\r
 354                 \r
 355                 glBindTexture(GL_TEXTURE_2D, 0);\r
 356 \r
 357                 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());\r
 358         }\r
 359 \r
 360         bool send(const safe_ptr<core::read_frame>& frame)\r
 361         {\r
 362                 if(!frame_buffer_.try_push(frame))\r
 363                         graph_->add_tag("dropped-frame");\r
 364                 return is_running_;\r
 365         }\r
 366                 \r
 367         std::wstring print() const\r
 368         {       \r
 369                 return config_.name + L"[" + boost::lexical_cast<std::wstring>(channel_index_) + L"|" + format_desc_.name + L"]";\r
 370         }\r
 371         \r
 372         void calculate_aspect()\r
 373         {\r
 374                 if(config_.windowed)\r
 375                 {\r
 376                         screen_height_ = window_.GetHeight();\r
 377                         screen_width_ = window_.GetWidth();\r
 378                 }\r
 379                 \r
 380                 GL(glViewport(0, 0, screen_width_, screen_height_));\r
 381 \r
 382                 std::pair<float, float> target_ratio = None();\r
 383                 if(config_.stretch == fill)\r
 384                         target_ratio = Fill();\r
 385                 else if(config_.stretch == uniform)\r
 386                         target_ratio = Uniform();\r
 387                 else if(config_.stretch == uniform_to_fill)\r
 388                         target_ratio = UniformToFill();\r
 389 \r
 390                 width_ = target_ratio.first;\r
 391                 height_ = target_ratio.second;\r
 392         }\r
 393                 \r
 394         std::pair<float, float> None()\r
 395         {\r
 396                 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 397                 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 398 \r
 399                 return std::make_pair(width, height);\r
 400         }\r
 401 \r
 402         std::pair<float, float> Uniform()\r
 403         {\r
 404                 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);\r
 405                 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));\r
 406                 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);\r
 407 \r
 408                 return std::make_pair(width, height);\r
 409         }\r
 410 \r
 411         std::pair<float, float> Fill()\r
 412         {\r
 413                 return std::make_pair(1.0f, 1.0f);\r
 414         }\r
 415 \r
 416         std::pair<float, float> UniformToFill()\r
 417         {\r
 418                 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 419                 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 420                 float r_inv = 1.0f/std::min(wr, hr);\r
 421 \r
 422                 float width = wr*r_inv;\r
 423                 float height = hr*r_inv;\r
 424 \r
 425                 return std::make_pair(width, height);\r
 426         }\r
 427 };\r
 428 \r
 429 \r
 430 struct ogl_consumer_proxy : public core::frame_consumer\r
 431 {\r
 432         const configuration config_;\r
 433         std::unique_ptr<ogl_consumer> consumer_;\r
 434 \r
 435 public:\r
 436 \r
 437         ogl_consumer_proxy(const configuration& config)\r
 438                 : config_(config){}\r
 439         \r
 440         ~ogl_consumer_proxy()\r
 441         {\r
 442                 if(consumer_)\r
 443                 {\r
 444                         auto str = print();\r
 445                         consumer_.reset();\r
 446                         CASPAR_LOG(info) << str << L" Successfully Uninitialized.";     \r
 447                 }\r
 448         }\r
 449 \r
 450         // frame_consumer\r
 451 \r
 452         virtual void initialize(const core::video_format_desc& format_desc, int channel_index) override\r
 453         {\r
 454                 consumer_.reset();\r
 455                 consumer_.reset(new ogl_consumer(config_, format_desc, channel_index));\r
 456                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 457         }\r
 458         \r
 459         virtual bool send(const safe_ptr<core::read_frame>& frame) override\r
 460         {\r
 461                 return consumer_->send(frame);\r
 462         }\r
 463         \r
 464         virtual std::wstring print() const override\r
 465         {\r
 466                 return consumer_ ? consumer_->print() : L"[ogl_consumer]";\r
 467         }\r
 468 \r
 469         virtual boost::property_tree::wptree info() const override\r
 470         {\r
 471                 boost::property_tree::wptree info;\r
 472                 info.add(L"type", L"ogl-consumer");\r
 473                 info.add(L"key-only", config_.key_only);\r
 474                 info.add(L"windowed", config_.windowed);\r
 475                 info.add(L"auto-deinterlace", config_.auto_deinterlace);\r
 476                 return info;\r
 477         }\r
 478 \r
 479         virtual bool has_synchronization_clock() const override\r
 480         {\r
 481                 return false;\r
 482         }\r
 483         \r
 484         virtual size_t buffer_depth() const override\r
 485         {\r
 486                 return 1;\r
 487         }\r
 488 \r
 489         virtual int index() const override\r
 490         {\r
 491                 return 600;\r
 492         }\r
 493 };      \r
 494 \r
 495 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 496 {\r
 497         if(params.size() < 1 || params[0] != L"SCREEN")\r
 498                 return core::frame_consumer::empty();\r
 499         \r
 500         configuration config;\r
 501                 \r
 502         if(params.size() > 1) \r
 503                 config.screen_index = lexical_cast_or_default<int>(params[2], config.screen_index);\r
 504 \r
 505         if(params.size() > 2) \r
 506                 config.windowed = lexical_cast_or_default<bool>(params[3], config.windowed);\r
 507 \r
 508         config.key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 509 \r
 510         return make_safe<ogl_consumer_proxy>(config);\r
 511 }\r
 512 \r
 513 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree) \r
 514 {\r
 515         configuration config;\r
 516         config.name                             = ptree.get(L"name",     config.name);\r
 517         config.screen_index             = ptree.get(L"device",   config.screen_index+1)-1;\r
 518         config.windowed                 = ptree.get(L"windowed", config.windowed);\r
 519         config.key_only                 = ptree.get(L"key-only", config.key_only);\r
 520         config.auto_deinterlace = ptree.get(L"auto-deinterlace", config.auto_deinterlace);\r
 521         \r
 522         auto stretch_str = ptree.get(L"stretch", L"default");\r
 523         if(stretch_str == L"uniform")\r
 524                 config.stretch = stretch::uniform;\r
 525         else if(stretch_str == L"uniform_to_fill")\r
 526                 config.stretch = stretch::uniform_to_fill;\r
 527         \r
 528         return make_safe<ogl_consumer_proxy>(config);\r
 529 }\r
 530 \r
 531 }}