git.sesse.net Git - casparcg/blob - common/diagnostics/graph.cpp

   1 #include "../stdafx.h"\r
   2 \r
   3 #include "graph.h"\r
   4 #include "context.h"\r
   5 \r
   6 #pragma warning (disable : 4244)\r
   7 \r
   8 #include "../concurrency/executor.h"\r
   9 #include "../utility/timer.h"\r
  10 \r
  11 #include <SFML/Graphics.hpp>\r
  12 \r
  13 #include <boost/foreach.hpp>\r
  14 #include <boost/optional.hpp>\r
  15 #include <boost/circular_buffer.hpp>\r
  16 #include <boost/range/algorithm_ext/erase.hpp>\r
  17 \r
  18 #include <numeric>\r
  19 #include <map>\r
  20 #include <array>\r
  21 \r
  22 namespace caspar { namespace diagnostics {\r
  23 \r
  24 class guide : public drawable\r
  25 {\r
  26         float value_;\r
  27         color c_;\r
  28 public:\r
  29         guide(color c = color(1.0f, 1.0f, 1.0f, 0.6f)) \r
  30                 : value_(0.0f)\r
  31                 , c_(c){}\r
  32 \r
  33         guide(float value, color c = color(1.0f, 1.0f, 1.0f, 0.6f)) \r
  34                 : value_(value)\r
  35                 , c_(c){}\r
  36                         \r
  37         void set_color(color c) {c_ = c;}\r
  38 \r
  39         void render(sf::RenderTarget&)\r
  40         {               \r
  41                 glEnable(GL_LINE_STIPPLE);\r
  42                 glLineStipple(3, 0xAAAA);\r
  43                 glBegin(GL_LINE_STRIP); \r
  44                         glColor4f(c_.red, c_.green, c_.blue+0.2f, c_.alpha);            \r
  45                         glVertex3f(0.0f, (1.0f-value_) * 0.8f + 0.1f, 0.0f);            \r
  46                         glVertex3f(1.0f, (1.0f-value_) * 0.8f + 0.1f, 0.0f);    \r
  47                 glEnd();\r
  48                 glDisable(GL_LINE_STIPPLE);\r
  49         }\r
  50 };\r
  51 \r
  52 class line : public drawable\r
  53 {\r
  54         boost::optional<diagnostics::guide> guide_;\r
  55         boost::circular_buffer<std::pair<float, bool>> line_data_;\r
  56 \r
  57         std::vector<float>              tick_data_;\r
  58         bool                                    tick_tag_;\r
  59         color c_;\r
  60 public:\r
  61         line(size_t res = 600)\r
  62                 : line_data_(res)\r
  63                 , tick_tag_(false)\r
  64                 , c_(1.0f, 1.0f, 1.0f)\r
  65         {\r
  66                 line_data_.push_back(std::make_pair(-1.0f, false));\r
  67         }\r
  68         \r
  69         void update(float value)\r
  70         {\r
  71                 tick_data_.push_back(value);\r
  72         }\r
  73         \r
  74         void tag()\r
  75         {\r
  76                 tick_tag_ = true;\r
  77         }\r
  78 \r
  79         void guide(const guide& guide)\r
  80         {\r
  81                 guide_ = guide;\r
  82                 guide_->set_color(c_);\r
  83         }\r
  84         \r
  85         void set_color(color c)\r
  86         {\r
  87                 c_ = c;\r
  88                 if(guide_)\r
  89                         guide_->set_color(c_);\r
  90         }\r
  91 \r
  92         color get_color() const { return c_; }\r
  93         \r
  94         void render(sf::RenderTarget& target)\r
  95         {\r
  96                 float dx = 1.0f/static_cast<float>(line_data_.capacity());\r
  97                 float x = static_cast<float>(line_data_.capacity()-line_data_.size())*dx;\r
  98 \r
  99                 if(!tick_data_.empty())\r
 100                 {\r
 101                         float sum = std::accumulate(tick_data_.begin(), tick_data_.end(), 0.0) + std::numeric_limits<float>::min();\r
 102                         line_data_.push_back(std::make_pair(static_cast<float>(sum)/static_cast<float>(tick_data_.size()), tick_tag_));\r
 103                         tick_data_.clear();\r
 104                 }\r
 105                 else if(!line_data_.empty())\r
 106                 {\r
 107                         line_data_.push_back(std::make_pair(line_data_.back().first, tick_tag_));\r
 108                 }\r
 109                 tick_tag_ = false;\r
 110 \r
 111                 if(guide_)\r
 112                         target.Draw(*guide_);\r
 113                 \r
 114                 glBegin(GL_LINE_STRIP);\r
 115                 glColor4f(c_.red, c_.green, c_.blue, 1.0f);             \r
 116                 for(size_t n = 0; n < line_data_.size(); ++n)           \r
 117                         if(line_data_[n].first > -0.5)\r
 118                                 glVertex3f(x+n*dx, std::max(0.05f, std::min(0.95f, (1.0f-line_data_[n].first)*0.8f + 0.1f)), 0.0f);             \r
 119                 glEnd();\r
 120                                 \r
 121                 glEnable(GL_LINE_STIPPLE);\r
 122                 glLineStipple(3, 0xAAAA);\r
 123                 for(size_t n = 0; n < line_data_.size(); ++n)   \r
 124                 {\r
 125                         if(line_data_[n].second)\r
 126                         {\r
 127                                 glBegin(GL_LINE_STRIP);\r
 128                                 glColor4f(c_.red, c_.green, c_.blue, c_.alpha);                                 \r
 129                                         glVertex3f(x+n*dx, 0.0f, 0.0f);                         \r
 130                                         glVertex3f(x+n*dx, 1.0f, 0.0f);         \r
 131                                 glEnd();\r
 132                         }\r
 133                 }\r
 134                 glDisable(GL_LINE_STIPPLE);\r
 135         }\r
 136 };\r
 137 \r
 138 struct graph::implementation : public drawable\r
 139 {\r
 140         std::map<std::string, diagnostics::line> lines_;\r
 141         std::string name_;\r
 142 \r
 143         implementation(const std::string& name) : name_(name){}\r
 144 \r
 145         void update(const std::string& name, float value)\r
 146         {\r
 147                 context::begin_invoke([=]\r
 148                 {\r
 149                         lines_[name].update(value);\r
 150                 });\r
 151         }\r
 152 \r
 153         void tag(const std::string& name)\r
 154         {\r
 155                 context::begin_invoke([=]\r
 156                 {\r
 157                         lines_[name].tag();\r
 158                 });\r
 159         }\r
 160 \r
 161         void set_color(const std::string& name, color c)\r
 162         {\r
 163                 context::begin_invoke([=]\r
 164                 {\r
 165                         lines_[name].set_color(c);\r
 166                 });\r
 167         }\r
 168         \r
 169         void guide(const std::string& name, float value)\r
 170         {\r
 171                 context::begin_invoke([=]\r
 172                 {\r
 173                         lines_[name].guide(diagnostics::guide(value));\r
 174                 });\r
 175         }\r
 176 \r
 177 private:\r
 178         void render(sf::RenderTarget& target)\r
 179         {\r
 180                 const size_t text_size = 15;\r
 181                 const size_t text_margin = 2;\r
 182                 const size_t text_offset = text_size+text_margin*2;\r
 183 \r
 184                 sf::String text(name_.c_str(), sf::Font::GetDefaultFont(), text_size);\r
 185                 text.SetStyle(sf::String::Italic);\r
 186                 text.Move(text_margin, text_margin);\r
 187                 \r
 188                 glPushMatrix();\r
 189                 glScaled(1.0f/GetScale().x, 1.0f/GetScale().y, 1.0f);\r
 190                 target.Draw(text);\r
 191                 float x_offset = text.GetPosition().x + text.GetRect().Right + text_margin*4;\r
 192                 for(auto it = lines_.begin(); it != lines_.end(); ++it)\r
 193                 {                                               \r
 194                         sf::String line_text(it->first, sf::Font::GetDefaultFont(), text_size);\r
 195                         line_text.SetPosition(x_offset, text_margin);\r
 196                         auto c = it->second.get_color();\r
 197                         line_text.SetColor(sf::Color(c.red*255.0f, c.green*255.0f, c.blue*255.0f, c.alpha*255.0f));\r
 198                         target.Draw(line_text);\r
 199                         x_offset = line_text.GetRect().Right + text_margin*2;\r
 200                 }\r
 201 \r
 202                 glDisable(GL_TEXTURE_2D);\r
 203                 glPopMatrix();\r
 204 \r
 205                 glBegin(GL_QUADS);\r
 206                         glColor4f(1.0f, 1.0f, 1.0f, 0.2f);      \r
 207                         glVertex2f(1.0f, 0.99f);\r
 208                         glVertex2f(0.0f, 0.99f);\r
 209                         glVertex2f(0.0f, 0.01f);        \r
 210                         glVertex2f(1.0f, 0.01f);        \r
 211                 glEnd();\r
 212 \r
 213                 glPushMatrix();\r
 214                 glTranslated(0.0f, text_offset/GetScale().y, 1.0f);\r
 215                 glScaled(1.0f, 1.0-text_offset/GetScale().y, 1.0f);\r
 216                 \r
 217                 target.Draw(diagnostics::guide(1.0f, color(1.0f, 1.0f, 1.0f, 0.6f)));\r
 218                 target.Draw(diagnostics::guide(0.0f, color(1.0f, 1.0f, 1.0f, 0.6f)));\r
 219 \r
 220                 for(auto it = lines_.begin(); it != lines_.end(); ++it)         \r
 221                         target.Draw(it->second);\r
 222                 \r
 223                 glPopMatrix();\r
 224 \r
 225         }\r
 226 \r
 227         implementation(implementation&);\r
 228         implementation& operator=(implementation&);\r
 229 };\r
 230         \r
 231 graph::graph(const std::string& name) : impl_(new implementation(name))\r
 232 {\r
 233         context::register_drawable(impl_);\r
 234 }\r
 235 \r
 236 void graph::update(const std::string& name, float value){impl_->update(name, value);}\r
 237 void graph::tag(const std::string& name){impl_->tag(name);}\r
 238 void graph::guide(const std::string& name, float value){impl_->guide(name, value);}\r
 239 void graph::set_color(const std::string& name, color c){impl_->set_color(name, c);}\r
 240 \r
 241 safe_ptr<graph> create_graph(const std::string& name)\r
 242 {\r
 243         return safe_ptr<graph>(new graph(name));\r
 244 }\r
 245 \r
 246 }}