git.sesse.net Git - casparcg/blob - common/diagnostics/graph.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 "../stdafx.h"\r
  23 \r
  24 #include "graph.h"\r
  25 \r
  26 #pragma warning (disable : 4244)\r
  27 \r
  28 #include "../concurrency/executor.h"\r
  29 #include "../env.h"\r
  30 \r
  31 #include <SFML/Graphics.hpp>\r
  32 \r
  33 #include <boost/foreach.hpp>\r
  34 #include <boost/optional.hpp>\r
  35 #include <boost/circular_buffer.hpp>\r
  36 #include <boost/range/algorithm_ext/erase.hpp>\r
  37 \r
  38 #include <numeric>\r
  39 #include <map>\r
  40 #include <array>\r
  41 \r
  42 namespace caspar { namespace diagnostics {\r
  43                 \r
  44 struct drawable : public sf::Drawable\r
  45 {\r
  46         virtual ~drawable(){}\r
  47         virtual void render(sf::RenderTarget& target) = 0;\r
  48         virtual void Render(sf::RenderTarget& target) const { const_cast<drawable*>(this)->render(target);}\r
  49 };\r
  50 \r
  51 class context : public drawable\r
  52 {       \r
  53         std::unique_ptr<sf::RenderWindow> window_;\r
  54         \r
  55         std::list<std::shared_ptr<drawable>> drawables_;\r
  56                 \r
  57         executor executor_;\r
  58 public:                                 \r
  59 \r
  60         template<typename Func>\r
  61         static auto begin_invoke(Func&& func) -> boost::unique_future<decltype(func())> // noexcept\r
  62         {       \r
  63                 return get_instance().executor_.begin_invoke(std::forward<Func>(func)); \r
  64         }\r
  65 \r
  66         static void register_drawable(const std::shared_ptr<drawable>& drawable)\r
  67         {\r
  68                 if(!drawable)\r
  69                         return;\r
  70 \r
  71                 begin_invoke([=]\r
  72                 {\r
  73                         get_instance().do_register_drawable(drawable);\r
  74                 });\r
  75         }\r
  76 \r
  77         static void show(bool value)\r
  78         {\r
  79                 begin_invoke([=]\r
  80                 {       \r
  81                         get_instance().do_show(value);\r
  82                 });\r
  83         }\r
  84                                 \r
  85 private:\r
  86         context() : executor_(L"diagnostics")\r
  87         {\r
  88                 executor_.set_priority_class(below_normal_priority_class);\r
  89         }\r
  90 \r
  91         void do_show(bool value)\r
  92         {\r
  93                 if(value)\r
  94                 {\r
  95                         if(!window_)\r
  96                         {\r
  97                                 window_.reset(new sf::RenderWindow(sf::VideoMode(600, 1000), "CasparCG Diagnostics"));\r
  98                                 window_->SetPosition(0, 0);\r
  99                                 window_->SetActive();\r
 100                                 glEnable(GL_BLEND);\r
 101                                 glEnable(GL_LINE_SMOOTH);\r
 102                                 glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);\r
 103                                 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);\r
 104                                 tick();\r
 105                         }\r
 106                 }\r
 107                 else\r
 108                         window_.reset();\r
 109         }\r
 110 \r
 111         void tick()\r
 112         {\r
 113                 if(!window_)\r
 114                         return;\r
 115 \r
 116                 sf::Event e;\r
 117                 while(window_->GetEvent(e))\r
 118                 {\r
 119                         if(e.Type == sf::Event::Closed)\r
 120                         {\r
 121                                 window_.reset();\r
 122                                 return;\r
 123                         }\r
 124                 }               \r
 125                 glClear(GL_COLOR_BUFFER_BIT);\r
 126                 window_->Draw(*this);\r
 127                 window_->Display();\r
 128                 boost::this_thread::sleep(boost::posix_time::milliseconds(20));\r
 129                 executor_.begin_invoke([this]{tick();});\r
 130         }\r
 131 \r
 132         void render(sf::RenderTarget& target)\r
 133         {\r
 134                 auto count = std::max<size_t>(8, drawables_.size());\r
 135                 float target_dy = 1.0f/static_cast<float>(count);\r
 136 \r
 137                 float last_y = 0.0f;\r
 138                 int n = 0;\r
 139                 for(auto it = drawables_.begin(); it != drawables_.end(); ++n)\r
 140                 {\r
 141                         auto& drawable = *it;\r
 142                         if(!drawable.unique())\r
 143                         {\r
 144                                 drawable->SetScale(static_cast<float>(window_->GetWidth()), static_cast<float>(target_dy*window_->GetHeight()));\r
 145                                 float target_y = std::max(last_y, static_cast<float>(n * window_->GetHeight())*target_dy);\r
 146                                 drawable->SetPosition(0.0f, target_y);                  \r
 147                                 target.Draw(*drawable);                         \r
 148                                 ++it;           \r
 149                         }\r
 150                         else    \r
 151                                 it = drawables_.erase(it);                      \r
 152                 }               \r
 153         }       \r
 154         \r
 155         void do_register_drawable(const std::shared_ptr<drawable>& drawable)\r
 156         {\r
 157                 if(std::find(drawables_.begin(), drawables_.end(), drawable) == drawables_.end())\r
 158                         drawables_.push_back(drawable);\r
 159         }\r
 160         \r
 161         static context& get_instance()\r
 162         {\r
 163                 static context impl;\r
 164                 return impl;\r
 165         }\r
 166 };\r
 167 \r
 168 class guide : public drawable\r
 169 {\r
 170         float value_;\r
 171         color c_;\r
 172 public:\r
 173         guide(color c = color(1.0f, 1.0f, 1.0f, 0.6f)) \r
 174                 : value_(0.0f)\r
 175                 , c_(c){}\r
 176 \r
 177         guide(float value, color c = color(1.0f, 1.0f, 1.0f, 0.6f)) \r
 178                 : value_(value)\r
 179                 , c_(c){}\r
 180                         \r
 181         void set_color(color c) {c_ = c;}\r
 182 \r
 183         void render(sf::RenderTarget&)\r
 184         {               \r
 185                 glEnable(GL_LINE_STIPPLE);\r
 186                 glLineStipple(3, 0xAAAA);\r
 187                 glBegin(GL_LINE_STRIP); \r
 188                         glColor4f(c_.red, c_.green, c_.blue+0.2f, c_.alpha);            \r
 189                         glVertex3f(0.0f, (1.0f-value_) * 0.8f + 0.1f, 0.0f);            \r
 190                         glVertex3f(1.0f, (1.0f-value_) * 0.8f + 0.1f, 0.0f);    \r
 191                 glEnd();\r
 192                 glDisable(GL_LINE_STIPPLE);\r
 193         }\r
 194 };\r
 195 \r
 196 class line : public drawable\r
 197 {\r
 198         boost::optional<diagnostics::guide> guide_;\r
 199         boost::circular_buffer<std::pair<double, bool>> line_data_;\r
 200 \r
 201         boost::circular_buffer<double>  tick_data_;\r
 202         bool                                                    tick_tag_;\r
 203         color c_;\r
 204 public:\r
 205         line(size_t res = 600)\r
 206                 : line_data_(res)\r
 207                 , tick_data_(50)\r
 208                 , tick_tag_(false)\r
 209                 , c_(1.0f, 1.0f, 1.0f)\r
 210         {\r
 211                 line_data_.push_back(std::make_pair(-1.0f, false));\r
 212         }\r
 213         \r
 214         void update(double value)\r
 215         {\r
 216                 tick_data_.push_back(value);\r
 217         }\r
 218 \r
 219         void set(double value)\r
 220         {\r
 221                 tick_data_.clear();\r
 222                 tick_data_.push_back(value);\r
 223         }\r
 224         \r
 225         void tag()\r
 226         {\r
 227                 tick_tag_ = true;\r
 228         }\r
 229 \r
 230         void guide(const guide& guide)\r
 231         {\r
 232                 guide_ = guide;\r
 233                 guide_->set_color(c_);\r
 234         }\r
 235         \r
 236         void set_color(color c)\r
 237         {\r
 238                 c_ = c;\r
 239                 if(guide_)\r
 240                         guide_->set_color(c_);\r
 241         }\r
 242 \r
 243         color get_color() const { return c_; }\r
 244         \r
 245         void render(sf::RenderTarget& target)\r
 246         {\r
 247                 float dx = 1.0f/static_cast<float>(line_data_.capacity());\r
 248                 float x = static_cast<float>(line_data_.capacity()-line_data_.size())*dx;\r
 249 \r
 250                 if(!tick_data_.empty())\r
 251                 {\r
 252                         float sum = std::accumulate(tick_data_.begin(), tick_data_.end(), 0.0) + std::numeric_limits<float>::min();\r
 253                         line_data_.push_back(std::make_pair(static_cast<float>(sum)/static_cast<float>(tick_data_.size()), tick_tag_));\r
 254                         tick_data_.clear();\r
 255                 }\r
 256                 else if(!line_data_.empty())\r
 257                 {\r
 258                         line_data_.push_back(std::make_pair(line_data_.back().first, tick_tag_));\r
 259                 }\r
 260                 tick_tag_ = false;\r
 261 \r
 262                 if(guide_)\r
 263                         target.Draw(*guide_);\r
 264                 \r
 265                 glBegin(GL_LINE_STRIP);\r
 266                 glColor4f(c_.red, c_.green, c_.blue, 0.8f);             \r
 267                 for(size_t n = 0; n < line_data_.size(); ++n)           \r
 268                         if(line_data_[n].first > -0.5)\r
 269                                 glVertex3d(x+n*dx, std::max(0.05, std::min(0.95, (1.0f-line_data_[n].first)*0.8 + 0.1f)), 0.0);         \r
 270                 glEnd();\r
 271                                 \r
 272                 glEnable(GL_LINE_STIPPLE);\r
 273                 glLineStipple(3, 0xAAAA);\r
 274                 for(size_t n = 0; n < line_data_.size(); ++n)   \r
 275                 {\r
 276                         if(line_data_[n].second)\r
 277                         {\r
 278                                 glBegin(GL_LINE_STRIP);\r
 279                                 glColor4f(c_.red, c_.green, c_.blue, c_.alpha);                                 \r
 280                                         glVertex3f(x+n*dx, 0.0f, 0.0f);                         \r
 281                                         glVertex3f(x+n*dx, 1.0f, 0.0f);         \r
 282                                 glEnd();\r
 283                         }\r
 284                 }\r
 285                 glDisable(GL_LINE_STIPPLE);\r
 286         }\r
 287 };\r
 288 \r
 289 struct graph::implementation : public drawable\r
 290 {\r
 291         std::map<std::string, diagnostics::line> lines_;\r
 292         std::string name_;\r
 293         std::string text_;\r
 294         \r
 295         implementation(const std::string& name) \r
 296                 : name_(name)\r
 297                 , text_(name_){}\r
 298         \r
 299         void set_text(const std::string& value)\r
 300         {\r
 301                 text_ = value;\r
 302         }\r
 303 \r
 304         void update(const std::string& name, double value)\r
 305         {\r
 306                 lines_[name].update(value);\r
 307         }\r
 308 \r
 309         void set(const std::string& name, double value)\r
 310         {\r
 311                 lines_[name].set(value);\r
 312         }\r
 313 \r
 314         void tag(const std::string& name)\r
 315         {\r
 316                 lines_[name].tag();\r
 317         }\r
 318 \r
 319         void set_color(const std::string& name, color c)\r
 320         {\r
 321                 lines_[name].set_color(c);\r
 322         }\r
 323         \r
 324         void guide(const std::string& name, double value)\r
 325         {\r
 326                 lines_[name].guide(diagnostics::guide(value));  \r
 327         }\r
 328         \r
 329 private:\r
 330         void render(sf::RenderTarget& target)\r
 331         {\r
 332                 const size_t text_size = 15;\r
 333                 const size_t text_margin = 2;\r
 334                 const size_t text_offset = (text_size+text_margin*2)*2;\r
 335 \r
 336                 sf::String text(text_.c_str(), sf::Font::GetDefaultFont(), text_size);\r
 337                 text.SetStyle(sf::String::Italic);\r
 338                 text.Move(text_margin, text_margin);\r
 339                 \r
 340                 glPushMatrix();\r
 341                         glScaled(1.0f/GetScale().x, 1.0f/GetScale().y, 1.0f);\r
 342                         target.Draw(text);\r
 343                         float x_offset = text_margin;\r
 344                         for(auto it = lines_.begin(); it != lines_.end(); ++it)\r
 345                         {                                               \r
 346                                 sf::String line_text(it->first, sf::Font::GetDefaultFont(), text_size);\r
 347                                 line_text.SetPosition(x_offset, text_margin+text_offset/2);\r
 348                                 auto c = it->second.get_color();\r
 349                                 line_text.SetColor(sf::Color(c.red*255.0f, c.green*255.0f, c.blue*255.0f, c.alpha*255.0f));\r
 350                                 target.Draw(line_text);\r
 351                                 x_offset = line_text.GetRect().Right + text_margin*2;\r
 352                         }\r
 353 \r
 354                         glDisable(GL_TEXTURE_2D);\r
 355                 glPopMatrix();\r
 356 \r
 357                 glBegin(GL_QUADS);\r
 358                         glColor4f(1.0f, 1.0f, 1.0f, 0.2f);      \r
 359                         glVertex2f(1.0f, 0.99f);\r
 360                         glVertex2f(0.0f, 0.99f);\r
 361                         glVertex2f(0.0f, 0.01f);        \r
 362                         glVertex2f(1.0f, 0.01f);        \r
 363                 glEnd();\r
 364 \r
 365                 glPushMatrix();\r
 366                         glTranslated(0.0f, text_offset/GetScale().y, 1.0f);\r
 367                         glScaled(1.0f, 1.0-text_offset/GetScale().y, 1.0f);\r
 368                 \r
 369                         target.Draw(diagnostics::guide(1.0f, color(1.0f, 1.0f, 1.0f, 0.6f)));\r
 370                         target.Draw(diagnostics::guide(0.0f, color(1.0f, 1.0f, 1.0f, 0.6f)));\r
 371 \r
 372                         for(auto it = lines_.begin(); it != lines_.end(); ++it)         \r
 373                                 target.Draw(it->second);\r
 374                 \r
 375                 glPopMatrix();\r
 376         }\r
 377 \r
 378         implementation(implementation&);\r
 379         implementation& operator=(implementation&);\r
 380 };\r
 381         \r
 382 graph::graph() : impl_(new implementation(""))\r
 383 {\r
 384 \r
 385 }\r
 386 \r
 387 void graph::set_text(const std::string& value)\r
 388 {\r
 389         auto p = impl_;\r
 390         context::begin_invoke([=]\r
 391         {       \r
 392                 p->set_text(value);\r
 393         });\r
 394 }\r
 395 \r
 396 void graph::set_text(const std::wstring& value)\r
 397 {\r
 398         set_text(narrow(value));\r
 399 }\r
 400 \r
 401 void graph::update_value(const std::string& name, double value)\r
 402 {\r
 403         auto p = impl_;\r
 404         context::begin_invoke([=]\r
 405         {       \r
 406                 p->update(name, value);\r
 407         });\r
 408 }\r
 409 void graph::set_value(const std::string& name, double value)\r
 410 {       \r
 411         auto p = impl_;\r
 412         context::begin_invoke([=]\r
 413         {       \r
 414                 p->set(name, value);\r
 415         });     \r
 416 }\r
 417 void graph::set_color(const std::string& name, color c)\r
 418 {               \r
 419         auto p = impl_;\r
 420         context::begin_invoke([=]\r
 421         {       \r
 422                 p->set_color(name, c);\r
 423         });\r
 424 }\r
 425 void graph::add_tag(const std::string& name)\r
 426 {               \r
 427         auto p = impl_;\r
 428         context::begin_invoke([=]\r
 429         {       \r
 430                 p->tag(name);\r
 431         });\r
 432 }\r
 433 void graph::add_guide(const std::string& name, double value)\r
 434 {       \r
 435         auto p = impl_;\r
 436         context::begin_invoke([=]\r
 437         {       \r
 438                 p->guide(name, value);\r
 439         });\r
 440 }\r
 441 \r
 442 void register_graph(const safe_ptr<graph>& graph)\r
 443 {\r
 444         context::register_drawable(graph->impl_);\r
 445 }\r
 446 \r
 447 void show_graphs(bool value)\r
 448 {\r
 449         context::show(value);\r
 450 }\r
 451 \r
 452 //namespace v2\r
 453 //{     \r
 454 //      \r
 455 //struct line::implementation\r
 456 //{\r
 457 //      std::wstring name_;\r
 458 //      boost::circular_buffer<data> ticks_;\r
 459 //\r
 460 //      implementation(const std::wstring& name) \r
 461 //              : name_(name)\r
 462 //              , ticks_(1024){}\r
 463 //      \r
 464 //      void update_value(float value)\r
 465 //      {\r
 466 //              ticks_.push_back();\r
 467 //              ticks_.back().value = value;\r
 468 //      }\r
 469 //\r
 470 //      void set_value(float value)\r
 471 //      {\r
 472 //              ticks_.clear();\r
 473 //              update_value(value);\r
 474 //      }\r
 475 //};\r
 476 //\r
 477 //line::line(){}\r
 478 //line::line(const std::wstring& name) : impl_(new implementation(name)){}\r
 479 //std::wstring line::print() const {return impl_->name_;}\r
 480 //void line::update_value(float value){impl_->update_value(value);}\r
 481 //void line::set_value(float value){impl_->set_value(value);}\r
 482 //boost::circular_buffer<data>& line::ticks() { return impl_->ticks_;}\r
 483 //\r
 484 //struct graph::implementation\r
 485 //{\r
 486 //      std::map<std::wstring, line> lines_;\r
 487 //      color                                            color_;\r
 488 //      printer                                          printer_;\r
 489 //\r
 490 //      implementation(const std::wstring& name) \r
 491 //              : printer_([=]{return name;}){}\r
 492 //\r
 493 //      implementation(const printer& parent_printer) \r
 494 //              : printer_(parent_printer){}\r
 495 //      \r
 496 //      void update_value(const std::wstring& name, float value)\r
 497 //      {\r
 498 //              auto it = lines_.find(name);\r
 499 //              if(it == lines_.end())\r
 500 //                      it = lines_.insert(std::make_pair(name, line(name))).first;\r
 501 //\r
 502 //              it->second.update_value(value);\r
 503 //      }\r
 504 //\r
 505 //      void set_value(const std::wstring& name, float value)\r
 506 //      {\r
 507 //              auto it = lines_.find(name);\r
 508 //              if(it == lines_.end())\r
 509 //                      it = lines_.insert(std::make_pair(name, line(name))).first;\r
 510 //\r
 511 //              it->second.set_value(value);\r
 512 //      }\r
 513 //      \r
 514 //      void set_color(const std::wstring& name, color color)\r
 515 //      {\r
 516 //              color_ = color;\r
 517 //      }\r
 518 //\r
 519 //      std::map<std::wstring, line>& get_lines()\r
 520 //      {\r
 521 //              return lines_;\r
 522 //      }\r
 523 //      \r
 524 //      color get_color() const\r
 525 //      {\r
 526 //              return color_;\r
 527 //      }\r
 528 //\r
 529 //      std::wstring print() const\r
 530 //      {\r
 531 //              return printer_ ? printer_() : L"graph";\r
 532 //      }\r
 533 //};\r
 534 //      \r
 535 //graph::graph(const std::wstring& name) : impl_(new implementation(name)){}\r
 536 //graph::graph(const printer& parent_printer) : impl_(new implementation(parent_printer)){}\r
 537 //void graph::update_value(const std::wstring& name, float value){impl_->update_value(name, value);}\r
 538 //void graph::set_value(const std::wstring& name, float value){impl_->set_value(name, value);}\r
 539 //void graph::set_color(const std::wstring& name, color c){impl_->set_color(name, c);}\r
 540 //color graph::get_color() const {return impl_->get_color();}\r
 541 //std::wstring graph::print() const {return impl_->print();}\r
 542 //\r
 543 //safe_ptr<graph> graph::clone() const \r
 544 //{\r
 545 //      safe_ptr<graph> clone(new graph(std::wstring(L"")));\r
 546 //      clone->impl_->printer_ = impl_->printer_;\r
 547 //      clone->impl_->lines_ = impl_->lines_;\r
 548 //      clone->impl_->color_ = impl_->color_;   \r
 549 //}\r
 550 //\r
 551 //std::map<std::wstring, line>& graph::get_lines() {impl_->get_lines();}\r
 552 //\r
 553 //std::vector<safe_ptr<graph>> g_graphs;\r
 554 //\r
 555 //safe_ptr<graph> create_graph(const std::string& name)\r
 556 //{\r
 557 //      g_graphs.push_back(make_safe<graph>(name));\r
 558 //      return g_graphs.back();\r
 559 //}\r
 560 //\r
 561 //safe_ptr<graph> create_graph(const printer& parent_printer)\r
 562 //{\r
 563 //      g_graphs.push_back(make_safe<graph>(parent_printer));\r
 564 //      return g_graphs.back();\r
 565 //}\r
 566 //\r
 567 //static std::vector<safe_ptr<graph>> get_all_graphs()\r
 568 //{\r
 569 //      std::vector<safe_ptr<graph>> graphs;\r
 570 //      BOOST_FOREACH(auto& graph, g_graphs)\r
 571 //              graphs.push_back(graph->clone());\r
 572 //\r
 573 //      return graphs;\r
 574 //}\r
 575 //\r
 576 //}\r
 577 \r
 578 }}