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 ogl_consumer : boost::noncopyable\r
  80 {               \r
  81         core::video_format_desc format_desc_;\r
  82         \r
  83         GLuint                                  texture_;\r
  84         std::vector<GLuint>             pbos_;\r
  85         \r
  86         float                                   width_;\r
  87         float                                   height_;\r
  88         \r
  89         const stretch                   stretch_;\r
  90 \r
  91         const bool                              windowed_;\r
  92         unsigned int                    screen_x_;\r
  93         unsigned int                    screen_y_;\r
  94         unsigned int                    screen_width_;\r
  95         unsigned int                    screen_height_;\r
  96         const unsigned int              screen_index_;\r
  97 \r
  98         size_t                                  square_width_;\r
  99         size_t                                  square_height_;                         \r
 100         \r
 101         sf::Window                              window_;\r
 102         \r
 103         safe_ptr<diagnostics::graph> graph_;\r
 104         boost::timer                    perf_timer_;\r
 105 \r
 106         boost::circular_buffer<safe_ptr<core::read_frame>>                      input_buffer_;\r
 107         tbb::concurrent_bounded_queue<safe_ptr<core::read_frame>>       frame_buffer_;\r
 108 \r
 109         boost::thread                   thread_;\r
 110         tbb::atomic<bool>               is_running_;\r
 111 \r
 112         \r
 113         filter                                  filter_;\r
 114 \r
 115         const bool key_only_;\r
 116 public:\r
 117         ogl_consumer(unsigned int screen_index, stretch stretch, bool windowed, const core::video_format_desc& format_desc, bool key_only) \r
 118                 : format_desc_(format_desc)\r
 119                 , texture_(0)\r
 120                 , pbos_(2, 0)\r
 121                 , stretch_(stretch)\r
 122                 , windowed_(windowed)\r
 123                 , screen_index_(screen_index)           \r
 124                 , screen_width_(format_desc.width)\r
 125                 , screen_height_(format_desc.height)\r
 126                 , square_width_(format_desc.width)\r
 127                 , square_height_(format_desc.height)\r
 128                 , graph_(diagnostics::create_graph(narrow(print())))\r
 129                 , input_buffer_(core::consumer_buffer_depth()-1)\r
 130                 , key_only_(key_only)\r
 131                 , filter_(format_desc.field_mode == core::field_mode::progressive ? L"" : L"YADIF=0:-1", boost::assign::list_of(PIX_FMT_BGRA))\r
 132         {               \r
 133                 if(format_desc.field_mode != core::field_mode::progressive)\r
 134                         CASPAR_LOG(info) << print() << L" Deinterlacer enabled.";\r
 135 \r
 136                 frame_buffer_.set_capacity(2);\r
 137 \r
 138                 graph_->add_guide("frame-time", 0.5);\r
 139                 graph_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 140                 graph_->set_color("dropped-frame", diagnostics::color(0.3f, 0.6f, 0.3f));\r
 141                                                                                 \r
 142                 if(format_desc_.format == core::video_format::pal)\r
 143                 {\r
 144                         square_width_   = 768;\r
 145                         square_height_  = 576;\r
 146                 }\r
 147                 else if(format_desc_.format == core::video_format::ntsc)\r
 148                 {\r
 149                         square_width_   = 720;\r
 150                         square_height_  = 547;\r
 151                 }\r
 152                 \r
 153                 DISPLAY_DEVICE d_device;                        \r
 154                 memset(&d_device, 0, sizeof(d_device));\r
 155                 d_device.cb = sizeof(d_device);\r
 156 \r
 157                 std::vector<DISPLAY_DEVICE> displayDevices;\r
 158                 for(int n = 0; EnumDisplayDevices(NULL, n, &d_device, NULL); ++n)\r
 159                 {\r
 160                         displayDevices.push_back(d_device);\r
 161                         memset(&d_device, 0, sizeof(d_device));\r
 162                         d_device.cb = sizeof(d_device);\r
 163                 }\r
 164 \r
 165                 if(screen_index_ >= displayDevices.size())\r
 166                         BOOST_THROW_EXCEPTION(out_of_range() << arg_name_info("screen_index_") << msg_info(narrow(print())));\r
 167                 \r
 168                 DEVMODE devmode;\r
 169                 memset(&devmode, 0, sizeof(devmode));\r
 170                 \r
 171                 if(!EnumDisplaySettings(displayDevices[screen_index_].DeviceName, ENUM_CURRENT_SETTINGS, &devmode))\r
 172                         BOOST_THROW_EXCEPTION(invalid_operation() << arg_name_info("screen_index") << msg_info(narrow(print()) + " EnumDisplaySettings"));\r
 173                 \r
 174                 screen_x_               = devmode.dmPosition.x;\r
 175                 screen_y_               = devmode.dmPosition.y;\r
 176                 screen_width_   = windowed_ ? square_width_ : devmode.dmPelsWidth;\r
 177                 screen_height_  = windowed_ ? square_height_ : devmode.dmPelsHeight;\r
 178                 \r
 179                 is_running_ = true;\r
 180                 thread_ = boost::thread([this]{run();});\r
 181         }\r
 182         \r
 183         ~ogl_consumer()\r
 184         {\r
 185                 is_running_ = false;\r
 186                 frame_buffer_.try_push(make_safe<core::read_frame>());\r
 187                 thread_.join();\r
 188         }\r
 189 \r
 190         void init()\r
 191         {\r
 192                 if(!GLEW_VERSION_2_1)\r
 193                         BOOST_THROW_EXCEPTION(not_supported() << msg_info("Missing OpenGL 2.1 support."));\r
 194 \r
 195                 window_.Create(sf::VideoMode(screen_width_, screen_height_, 32), narrow(print()), windowed_ ? sf::Style::Resize : sf::Style::Fullscreen);\r
 196                 window_.ShowMouseCursor(false);\r
 197                 window_.SetPosition(screen_x_, screen_y_);\r
 198                 window_.SetSize(screen_width_, screen_height_);\r
 199                 window_.SetActive();\r
 200                 GL(glEnable(GL_TEXTURE_2D));\r
 201                 GL(glDisable(GL_DEPTH_TEST));           \r
 202                 GL(glClearColor(0.0, 0.0, 0.0, 0.0));\r
 203                 GL(glViewport(0, 0, format_desc_.width, format_desc_.height));\r
 204                 GL(glLoadIdentity());\r
 205                                 \r
 206                 calculate_aspect();\r
 207                         \r
 208                 GL(glGenTextures(1, &texture_));\r
 209                 GL(glBindTexture(GL_TEXTURE_2D, texture_));\r
 210                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST));\r
 211                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST));\r
 212                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP));\r
 213                 GL(glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP));\r
 214                 GL(glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, format_desc_.width, format_desc_.height, 0, GL_BGRA, GL_UNSIGNED_BYTE, 0));\r
 215                 GL(glBindTexture(GL_TEXTURE_2D, 0));\r
 216                                         \r
 217                 GL(glGenBuffers(2, pbos_.data()));\r
 218                         \r
 219                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[0]);\r
 220                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 221                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, pbos_[1]);\r
 222                 glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, format_desc_.size, 0, GL_STREAM_DRAW_ARB);\r
 223                 glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, 0);\r
 224 \r
 225                 CASPAR_LOG(info) << print() << " Sucessfully Initialized.";\r
 226         }\r
 227 \r
 228         void uninit()\r
 229         {               \r
 230                 if(texture_)\r
 231                         glDeleteTextures(1, &texture_);\r
 232 \r
 233                 BOOST_FOREACH(auto& pbo, pbos_)\r
 234                 {\r
 235                         if(pbo)\r
 236                                 glDeleteBuffers(1, &pbo);\r
 237                 }\r
 238 \r
 239                 CASPAR_LOG(info) << print() << " Sucessfully Uninitialized.";\r
 240         }\r
 241 \r
 242         void run()\r
 243         {\r
 244                 try\r
 245                 {\r
 246                         init();\r
 247 \r
 248                         while(is_running_)\r
 249                         {                       \r
 250                                 try\r
 251                                 {\r
 252                                         perf_timer_.restart();\r
 253 \r
 254                                         sf::Event e;            \r
 255                                         while(window_.GetEvent(e))\r
 256                                         {\r
 257                                                 if(e.Type == sf::Event::Resized)\r
 258                                                         calculate_aspect();\r
 259                                         }\r
 260                         \r
 261                                         safe_ptr<core::read_frame> frame;\r
 262                                         frame_buffer_.pop(frame);\r
 263                                         render(frame);\r
 264 \r
 265                                         window_.Display();\r
 266 \r
 267                                         graph_->update_value("frame-time", static_cast<float>(perf_timer_.elapsed()*format_desc_.fps*0.5));     \r
 268                                 }\r
 269                                 catch(...)\r
 270                                 {\r
 271                                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 272                                         is_running_ = false;\r
 273                                 }\r
 274                         }\r
 275 \r
 276                         uninit();\r
 277                 }\r
 278                 catch(...)\r
 279                 {\r
 280                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 281                 }\r
 282         }\r
 283         \r
 284         const core::video_format_desc& get_video_format_desc() const\r
 285         {\r
 286                 return format_desc_;\r
 287         }\r
 288 \r
 289         safe_ptr<AVFrame> get_av_frame()\r
 290         {               \r
 291                 safe_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);     \r
 292                 avcodec_get_frame_defaults(av_frame.get());\r
 293                                                 \r
 294                 av_frame->linesize[0]           = format_desc_.width*4;                 \r
 295                 av_frame->format                        = PIX_FMT_BGRA;\r
 296                 av_frame->width                         = format_desc_.width;\r
 297                 av_frame->height                        = format_desc_.height;\r
 298                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 299                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper ? 1 : 0;\r
 300 \r
 301                 return av_frame;\r
 302         }\r
 303 \r
 304         void render(const safe_ptr<core::read_frame>& frame)\r
 305         {                       \r
 306                 if(frame->image_data().empty())\r
 307                         return;\r
 308                                         \r
 309                 auto av_frame = get_av_frame();\r
 310                 av_frame->data[0]                       = const_cast<uint8_t*>(frame->image_data().begin());\r
 311 \r
 312                 auto frames = filter_.execute(av_frame);\r
 313 \r
 314                 if(frames.empty())\r
 315                         return;\r
 316 \r
 317                 av_frame = frames[0];\r
 318 \r
 319                 if(av_frame->linesize[0] != static_cast<int>(format_desc_.width*4))\r
 320                 {\r
 321                         const uint8_t *src_data[4] = {0};\r
 322                         memcpy(const_cast<uint8_t**>(&src_data[0]), av_frame->data, 4);\r
 323                         const int src_linesizes[4] = {0};\r
 324                         memcpy(const_cast<int*>(&src_linesizes[0]), av_frame->linesize, 4);\r
 325 \r
 326                         auto av_frame2 = get_av_frame();\r
 327                         av_image_alloc(av_frame2->data, av_frame2->linesize, av_frame2->width, av_frame2->height, PIX_FMT_BGRA, 16);\r
 328                         av_image_copy(av_frame2->data, av_frame2->linesize, src_data, src_linesizes, PIX_FMT_BGRA, av_frame2->width, av_frame2->height);\r
 329                         av_frame = safe_ptr<AVFrame>(av_frame2.get(), [=](AVFrame*)\r
 330                         {\r
 331                                 av_freep(&av_frame2->data[0]);\r
 332                         });\r
 333                 }\r
 334 \r
 335                 glBindTexture(GL_TEXTURE_2D, texture_);\r
 336 \r
 337                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[0]);\r
 338                 glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, format_desc_.width, format_desc_.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);\r
 339 \r
 340                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, pbos_[1]);\r
 341                 glBufferData(GL_PIXEL_UNPACK_BUFFER, format_desc_.size, 0, GL_STREAM_DRAW);\r
 342 \r
 343                 auto ptr = glMapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);\r
 344                 if(ptr)\r
 345                 {\r
 346                         if(key_only_)\r
 347                                 fast_memshfl(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);\r
 348                         else\r
 349                                 fast_memcpy(reinterpret_cast<char*>(ptr), av_frame->data[0], frame->image_data().size());\r
 350 \r
 351                         glUnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // release the mapped buffer\r
 352                 }\r
 353 \r
 354                 glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);\r
 355                                 \r
 356                 GL(glClear(GL_COLOR_BUFFER_BIT));                       \r
 357                 glBegin(GL_QUADS);\r
 358                                 glTexCoord2f(0.0f,        1.0f);        glVertex2f(-width_, -height_);\r
 359                                 glTexCoord2f(1.0f,        1.0f);        glVertex2f( width_, -height_);\r
 360                                 glTexCoord2f(1.0f,        0.0f);        glVertex2f( width_,  height_);\r
 361                                 glTexCoord2f(0.0f,        0.0f);        glVertex2f(-width_,  height_);\r
 362                 glEnd();\r
 363                 \r
 364                 glBindTexture(GL_TEXTURE_2D, 0);\r
 365 \r
 366                 std::rotate(pbos_.begin(), pbos_.begin() + 1, pbos_.end());\r
 367         }\r
 368 \r
 369         void send(const safe_ptr<core::read_frame>& frame)\r
 370         {\r
 371                 input_buffer_.push_back(frame);\r
 372 \r
 373                 if(input_buffer_.full())\r
 374                 {\r
 375                         if(!frame_buffer_.try_push(input_buffer_.front()))\r
 376                                 graph_->add_tag("dropped-frame");\r
 377                 }\r
 378         }\r
 379                 \r
 380         std::wstring print() const\r
 381         {       \r
 382                 return  L"ogl[" + boost::lexical_cast<std::wstring>(screen_index_) + L"|" + format_desc_.name + L"]";\r
 383         }\r
 384         \r
 385         void calculate_aspect()\r
 386         {\r
 387                 if(windowed_)\r
 388                 {\r
 389                         screen_height_ = window_.GetHeight();\r
 390                         screen_width_ = window_.GetWidth();\r
 391                 }\r
 392                 \r
 393                 GL(glViewport(0, 0, screen_width_, screen_height_));\r
 394 \r
 395                 std::pair<float, float> target_ratio = None();\r
 396                 if(stretch_ == fill)\r
 397                         target_ratio = Fill();\r
 398                 else if(stretch_ == uniform)\r
 399                         target_ratio = Uniform();\r
 400                 else if(stretch_ == uniform_to_fill)\r
 401                         target_ratio = UniformToFill();\r
 402 \r
 403                 width_ = target_ratio.first;\r
 404                 height_ = target_ratio.second;\r
 405         }\r
 406                 \r
 407         std::pair<float, float> None()\r
 408         {\r
 409                 float width = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 410                 float height = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 411 \r
 412                 return std::make_pair(width, height);\r
 413         }\r
 414 \r
 415         std::pair<float, float> Uniform()\r
 416         {\r
 417                 float aspect = static_cast<float>(square_width_)/static_cast<float>(square_height_);\r
 418                 float width = std::min(1.0f, static_cast<float>(screen_height_)*aspect/static_cast<float>(screen_width_));\r
 419                 float height = static_cast<float>(screen_width_*width)/static_cast<float>(screen_height_*aspect);\r
 420 \r
 421                 return std::make_pair(width, height);\r
 422         }\r
 423 \r
 424         std::pair<float, float> Fill()\r
 425         {\r
 426                 return std::make_pair(1.0f, 1.0f);\r
 427         }\r
 428 \r
 429         std::pair<float, float> UniformToFill()\r
 430         {\r
 431                 float wr = static_cast<float>(square_width_)/static_cast<float>(screen_width_);\r
 432                 float hr = static_cast<float>(square_height_)/static_cast<float>(screen_height_);\r
 433                 float r_inv = 1.0f/std::min(wr, hr);\r
 434 \r
 435                 float width = wr*r_inv;\r
 436                 float height = hr*r_inv;\r
 437 \r
 438                 return std::make_pair(width, height);\r
 439         }\r
 440 };\r
 441 \r
 442 \r
 443 struct ogl_consumer_proxy : public core::frame_consumer\r
 444 {\r
 445         size_t screen_index_;\r
 446         caspar::stretch stretch_;\r
 447         bool windowed_;\r
 448         bool key_only_;\r
 449 \r
 450         std::unique_ptr<ogl_consumer> consumer_;\r
 451 \r
 452 public:\r
 453 \r
 454         ogl_consumer_proxy(size_t screen_index, stretch stretch, bool windowed, bool key_only)\r
 455                 : screen_index_(screen_index)\r
 456                 , stretch_(stretch)\r
 457                 , windowed_(windowed)\r
 458                 , key_only_(key_only){}\r
 459         \r
 460         virtual void initialize(const core::video_format_desc& format_desc)\r
 461         {\r
 462                 consumer_.reset(new ogl_consumer(screen_index_, stretch_, windowed_, format_desc, key_only_));\r
 463         }\r
 464         \r
 465         virtual bool send(const safe_ptr<core::read_frame>& frame)\r
 466         {\r
 467                 consumer_->send(frame);\r
 468                 return true;\r
 469         }\r
 470         \r
 471         virtual std::wstring print() const\r
 472         {\r
 473                 return consumer_->print();\r
 474         }\r
 475 \r
 476         virtual bool has_synchronization_clock() const \r
 477         {\r
 478                 return false;\r
 479         }\r
 480 \r
 481         virtual const core::video_format_desc& get_video_format_desc() const\r
 482         {\r
 483                 return consumer_->get_video_format_desc();\r
 484         }\r
 485 };      \r
 486 \r
 487 safe_ptr<core::frame_consumer> create_ogl_consumer(const std::vector<std::wstring>& params)\r
 488 {\r
 489         if(params.size() < 1 || params[0] != L"SCREEN")\r
 490                 return core::frame_consumer::empty();\r
 491         \r
 492         size_t screen_index = 0;\r
 493         stretch stretch = stretch::fill;\r
 494         bool windowed = true;\r
 495         \r
 496         if(params.size() > 1) \r
 497                 screen_index = lexical_cast_or_default<int>(params[2], screen_index);\r
 498 \r
 499         if(params.size() > 2) \r
 500                 windowed = lexical_cast_or_default<bool>(params[3], windowed);\r
 501 \r
 502         bool key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 503 \r
 504         return make_safe<ogl_consumer_proxy>(screen_index, stretch, windowed, key_only);\r
 505 }\r
 506 \r
 507 safe_ptr<core::frame_consumer> create_ogl_consumer(const boost::property_tree::ptree& ptree) \r
 508 {\r
 509         size_t screen_index = ptree.get("device", 0);\r
 510         bool windowed =ptree.get("windowed", true);\r
 511         \r
 512         stretch stretch = stretch::fill;\r
 513         auto key_str = ptree.get("stretch", "default");\r
 514         if(key_str == "uniform")\r
 515                 stretch = stretch::uniform;\r
 516         else if(key_str == "uniform_to_fill")\r
 517                 stretch = stretch::uniform_to_fill;\r
 518 \r
 519         bool key_only = ptree.get("key-only", false);\r
 520 \r
 521         return make_safe<ogl_consumer_proxy>(screen_index, stretch, windowed, key_only);\r
 522 }\r
 523 \r
 524 }