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 "profiler.h"
   8 #include <unistd.h>
   9
  10
  11 using namespace std;
  12 using namespace IPDF;
  13
  14
  15 extern const char *script_filename;
  16
  17 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))
  18 {
  19
  20         Screen scr;
  21         View view(doc, scr, bounds, c);
  22         if (input != NULL)
  23                 scr.RenderBMP(input);
  24         view.Render();
  25         if (output != NULL)
  26                 scr.ScreenShot(output);
  27         scr.Present();
  28 }
  29
  30 // It is the only way.
  31 // Dear god what have I done
  32 void RatCatcher(int x, int y, int buttons, int wheel, Screen * scr, View * view)
  33 {
  34         static bool oldButtonDown = false;
  35         static int oldx, oldy;
  36         if (buttons == 3 && !oldButtonDown)
  37         {
  38                 oldButtonDown = true;
  39                 view->ToggleGPUTransform();
  40                 oldx = x;
  41                 oldy = y;
  42                 return;
  43         }
  44         if (buttons == 2 && !oldButtonDown)
  45         {
  46                 oldButtonDown = true;
  47                 view->ToggleGPURendering();
  48                 oldx = x;
  49                 oldy = y;
  50         }
  51         if (buttons && !oldButtonDown)
  52         {
  53                 // We're beginning a drag.
  54                 oldButtonDown = true;
  55                 oldx = x;
  56                 oldy = y;
  57                 scr->SetMouseCursor(Screen::CursorMove);
  58         }
  59         if (buttons)
  60         {
  61                 view->Translate(Real(oldx-x)/Real(scr->ViewportWidth()), Real(oldy-y)/Real(scr->ViewportHeight()));
  62         }
  63         else
  64         {
  65                 oldButtonDown = false;
  66                 scr->SetMouseCursor(Screen::CursorArrow);
  67         }
  68         oldx = x;
  69         oldy = y;
  70
  71         if (wheel)
  72         {
  73                 view->ScaleAroundPoint(Real(x)/Real(scr->ViewportWidth()),Real(y)/Real(scr->ViewportHeight()), Real(expf(-wheel/20.f)));
  74         }
  75 }
  76
  77
  78 void MainLoop(Document & doc, Screen & scr, View & view, int max_frames = -1)
  79 {
  80         // order is important... segfaults occur when screen (which inits GL) is not constructed first -_-
  81
  82
  83         //scr.DebugFontInit("fonts/DejaVuSansMono.ttf", 12);
  84         scr.DebugFontInit("fonts/DejaVuSansMono.ttf", 18);
  85         scr.SetMouseHandler(RatCatcher);
  86
  87         ifstream tmp;
  88         istream * script_input = NULL;
  89         if (script_filename != NULL)
  90         {
  91                 if (strcmp(script_filename, "stdin") == 0)
  92                         script_input = &cin;
  93                 else
  94                 {
  95                         tmp.open(script_filename);
  96                         script_input = &tmp;
  97                 }
  98         }
  99         DebugScript script(script_input);
 100
 101         double total_cpu_time = 0;
 102         double total_gpu_time = 0;
 103         double total_real_time = 0;
 104
 105         // MINGW doesn't support a lot of ctime stuff here
 106         #ifndef __MINGW32__
 107         struct timespec real_clock_start;
 108         struct timespec real_clock_now;
 109         struct timespec real_clock_prev;
 110         clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_start);
 111         real_clock_now = real_clock_start;
 112         #endif
 113
 114
 115         double frames = 0;
 116         double data_rate = 0; // period between data output to stdout (if <= 0 there will be no output)
 117         uint64_t data_points = 0;
 118         setbuf(stdout, NULL);
 119         int frame_number = 0;
 120         while (scr.PumpEvents() && (max_frames < 0 || frame_number++ < max_frames))
 121         {
 122                 #ifndef __MINGW32__
 123                 real_clock_prev = real_clock_now;
 124                 #endif
 125                 ++frames;
 126                 g_profiler.BeginZone("scr.Clear()");
 127                 scr.Clear();
 128                 g_profiler.EndZone();
 129                 //view.ForceBoundsDirty();
 130                 //view.ForceBufferDirty();
 131                 //view.ForceRenderDirty();
 132
 133                 if (script_filename)
 134                 {
 135                         if (script.Execute(&view, &scr))
 136                                 return;
 137                 }
 138
 139                 g_profiler.BeginZone("view.Render");
 140                 view.Render(scr.ViewportWidth(), scr.ViewportHeight());
 141                 g_profiler.EndZone();
 142
 143                 double cpu_frame = scr.GetLastFrameTimeCPU();
 144                 double gpu_frame = scr.GetLastFrameTimeGPU();
 145                 total_cpu_time += cpu_frame; total_gpu_time += gpu_frame;
 146
 147                 #ifndef __MINGW32__
 148                 clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_now);
 149                 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);
 150                 #else
 151                 double real_frame = cpu_frame;
 152                 #endif
 153
 154                 total_real_time += real_frame;
 155                 if (data_rate > 0 && total_real_time > data_rate*(data_points+1))
 156                 {
 157                         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);
 158                         data_points++;
 159                 }
 160
 161
 162
 163
 164                 scr.DebugFontPrintF("Top Left: (%s,%s)\n", Str(view.GetBounds().x).c_str(),Str(view.GetBounds().y).c_str());
 165                 scr.DebugFontPrintF("Width: %s\n", Str(view.GetBounds().w).c_str());
 166                 scr.DebugFontPrintF("Zoom: %s %%\n", Str(VReal(100)/VReal(view.GetBounds().w)).c_str());
 167                 //scr.DebugFontPrintF("Similar size: %s\n", HumanScale(view.GetBounds().w * VReal(22e-3)));
 168
 169                 #if 0
 170                 scr.DebugFontPrintF("Rendered frame %lu\n", (uint64_t)frames);
 171                 scr.DebugFontPrintF("Lazy Rendering = %d\n", view.UsingLazyRendering());
 172                 if (cpu_frame > 0 && total_cpu_time > 0)
 173                         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);
 174                 if (gpu_frame > 0 && total_gpu_time > 0)
 175                         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);
 176
 177                 if (real_frame > 0 && total_real_time > 0)
 178                         scr.DebugFontPrintF("[REALTIME] Render 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);
 179
 180                 //scr.DebugFontPrintF("View bounds: %s\n", view.GetBounds().Str().c_str());
 181                 scr.DebugFontPrintF("type of Real == %s\n", g_real_name[REALTYPE]);
 182                 //#if REALTYPE == REAL_MPFRCPP
 183                 //      scr.DebugFontPrintf("Precision: %s\nRounding: %s\n");
 184                 //#endif
 185
 186                 #ifdef TRANSFORM_OBJECTS_NOT_VIEW
 187                 scr.DebugFontPrint("Doing cumulative coordinate transforms on Objects.\n");
 188                 #else
 189                 if (view.UsingGPUTransform())
 190                 {
 191                         scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
 192                 }
 193                 else
 194                 {
 195                         scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
 196                 }
 197                 #endif
 198
 199                 #ifdef TRANSFORM_BEZIERS_TO_PATH
 200                         scr.DebugFontPrint("Beziers have been transformed to Path\n");
 201                 #endif
 202
 203
 204                 if (view.UsingGPURendering())
 205                 {
 206                         scr.DebugFontPrint("Doing rendering using GPU.\n");
 207                 }
 208                 else
 209                 {
 210                         scr.DebugFontPrint("Doing rendering using CPU.\n");
 211                 }
 212                 #endif // 0
 213
 214                 g_profiler.BeginZone("scr.Present()");
 215                 scr.Present();
 216                 g_profiler.EndZone();
 217                 g_profiler.EndFrame();
 218         }
 219 }