src/main.h

   1 #include "common.h"
   2
   3 #include "document.h"
   4 #include "view.h"
   5 #include "screen.h"
   6 #include "debugscript.h"
   7 #include <unistd.h>
   8
   9
  10 using namespace std;
  11 using namespace IPDF;
  12
  13
  14 extern const char *script_filename;
  15
  16 inline void OverlayBMP(Document & doc, const char * input, const char * output, const Rect & bounds = Rect(0,0,1,1), const Colour & c = Colour(0.f,0.f,0.f,1.f))
  17 {
  18
  19         Screen scr;
  20         View view(doc, scr, bounds, c);
  21         if (input != NULL)
  22                 scr.RenderBMP(input);
  23         view.Render();
  24         if (output != NULL)
  25                 scr.ScreenShot(output);
  26         scr.Present();
  27 }
  28
  29 // It is the only way.
  30 // Dear god what have I done
  31 void RatCatcher(int x, int y, int buttons, int wheel, Screen * scr, View * view)
  32 {
  33         static bool oldButtonDown = false;
  34         static int oldx, oldy;
  35         if (buttons == 3 && !oldButtonDown)
  36         {
  37                 oldButtonDown = true;
  38                 view->ToggleGPUTransform();
  39                 oldx = x;
  40                 oldy = y;
  41                 return;
  42         }
  43         if (buttons == 2 && !oldButtonDown)
  44         {
  45                 oldButtonDown = true;
  46                 view->ToggleGPURendering();
  47                 oldx = x;
  48                 oldy = y;
  49         }
  50         if (buttons && !oldButtonDown)
  51         {
  52                 // We're beginning a drag.
  53                 oldButtonDown = true;
  54                 oldx = x;
  55                 oldy = y;
  56                 scr->SetMouseCursor(Screen::CursorMove);
  57         }
  58         if (buttons)
  59         {
  60                 view->Translate(Real(oldx-x)/Real(scr->ViewportWidth()), Real(oldy-y)/Real(scr->ViewportHeight()));
  61         }
  62         else
  63         {
  64                 oldButtonDown = false;
  65                 scr->SetMouseCursor(Screen::CursorArrow);
  66         }
  67         oldx = x;
  68         oldy = y;
  69
  70         if (wheel)
  71         {
  72                 view->ScaleAroundPoint(Real(x)/Real(scr->ViewportWidth()),Real(y)/Real(scr->ViewportHeight()), Real(expf(-wheel/20.f)));
  73         }
  74 }
  75
  76
  77 void MainLoop(Document & doc, Screen & scr, View & view, int max_frames = -1)
  78 {
  79         // order is important... segfaults occur when screen (which inits GL) is not constructed first -_-
  80         DebugScript script;
  81
  82         scr.DebugFontInit("fonts/DejaVuSansMono.ttf", 32);
  83         scr.SetMouseHandler(RatCatcher);
  84
  85         if (script_filename)
  86         {
  87                 script.Load(script_filename);
  88         }
  89
  90         double total_cpu_time = 0;
  91         double total_gpu_time = 0;
  92         double total_real_time = 0;
  93
  94         // MINGW doesn't support a lot of ctime stuff here
  95         #ifndef __MINGW32__
  96         struct timespec real_clock_start;
  97         struct timespec real_clock_now;
  98         struct timespec real_clock_prev;
  99         clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_start);
 100         real_clock_now = real_clock_start;
 101         #endif
 102
 103
 104         double frames = 0;
 105         double data_rate = 0; // period between data output to stdout (if <= 0 there will be no output)
 106         uint64_t data_points = 0;
 107         setbuf(stdout, NULL);
 108         int frame_number = 0;
 109         while (scr.PumpEvents() && (max_frames < 0 || frame_number++ < max_frames))
 110         {
 111                 #ifndef __MINGW32__
 112                 real_clock_prev = real_clock_now;
 113                 #endif
 114                 ++frames;
 115                 scr.Clear();
 116                 //view.ForceBoundsDirty();
 117                 //view.ForceBufferDirty();
 118                 //view.ForceRenderDirty();
 119
 120                 if (script_filename)
 121                 {
 122                         if (script.Execute(&view, &scr))
 123                                 return;
 124                 }
 125
 126                 view.Render(scr.ViewportWidth(), scr.ViewportHeight());
 127
 128                 double cpu_frame = scr.GetLastFrameTimeCPU();
 129                 double gpu_frame = scr.GetLastFrameTimeGPU();
 130                 total_cpu_time += cpu_frame; total_gpu_time += gpu_frame;
 131
 132                 #ifndef __MINGW32__
 133                 clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_now);
 134                 double real_frame = (real_clock_now.tv_sec - real_clock_prev.tv_sec) + 1e-9*(real_clock_now.tv_nsec - real_clock_prev.tv_nsec);
 135                 #else
 136                 double real_frame = cpu_frame;
 137                 #endif
 138
 139                 total_real_time += real_frame;
 140                 if (data_rate > 0 && total_real_time > data_rate*(data_points+1))
 141                 {
 142                         printf("%lu\t%f\t%f\t%f\t%f\t%f\t%f\n", (long unsigned int)frames, total_real_time, total_cpu_time, total_gpu_time, real_frame, cpu_frame, gpu_frame);
 143                         data_points++;
 144                 }
 145
 146                 scr.DebugFontPrintF("View Width = %s m\n", Str(view.GetBounds().w * VReal(22e-3)).c_str());
 147                 scr.DebugFontPrintF("Similar size: %s\n", HumanScale(view.GetBounds().w * VReal(22e-3)));
 148
 149                 #if 0
 150                 scr.DebugFontPrintF("Rendered frame %lu\n", (uint64_t)frames);
 151                 scr.DebugFontPrintF("Lazy Rendering = %d\n", view.UsingLazyRendering());
 152                 if (cpu_frame > 0 && total_cpu_time > 0)
 153                         scr.DebugFontPrintF("[CPU] Render took %lf ms (%lf FPS) (total %lf s, avg FPS %lf)\n", cpu_frame*1e3, 1.0/cpu_frame, total_cpu_time,frames/total_cpu_time);
 154                 if (gpu_frame > 0 && total_gpu_time > 0)
 155                         scr.DebugFontPrintF("[GPU] Render took %lf ms (%lf FPS) (total %lf s, avg FPS %lf)\n", gpu_frame*1e3, 1.0/gpu_frame, total_gpu_time, frames/total_gpu_time);
 156                 if (real_frame > 0 && total_real_time > 0)
 157                         scr.DebugFontPrintF("[REALTIME] Render+Present+Cruft took %lf ms (%lf FPS) (total %lf s, avg FPS %lf)\n", real_frame*1e3, 1.0/real_frame, total_real_time,frames/total_real_time);
 158
 159                 scr.DebugFontPrintF("View bounds: %s\n", view.GetBounds().Str().c_str());
 160                 scr.DebugFontPrintF("type of Real == %s\n", g_real_name[REALTYPE]);
 161                 //#if REALTYPE == REAL_MPFRCPP
 162                 //      scr.DebugFontPrintf("Precision: %s\nRounding: %s\n");
 163                 //#endif
 164
 165                 #ifdef TRANSFORM_OBJECTS_NOT_VIEW
 166                 scr.DebugFontPrint("Doing cumulative coordinate transforms on Objects.\n");
 167                 #else
 168                 if (view.UsingGPUTransform())
 169                 {
 170                         scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
 171                 }
 172                 else
 173                 {
 174                         scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
 175                 }
 176                 #endif
 177
 178                 #ifdef TRANSFORM_BEZIERS_TO_PATH
 179                         scr.DebugFontPrint("Beziers have been transformed to Path\n");
 180                 #endif
 181
 182
 183                 if (view.UsingGPURendering())
 184                 {
 185                         scr.DebugFontPrint("Doing rendering using GPU.\n");
 186                 }
 187                 else
 188                 {
 189                         scr.DebugFontPrint("Doing rendering using CPU.\n");
 190                 }
 191                 #endif // 0
 192
 193                 scr.Present();
 194         }
 195 }