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
  81
  82         scr.DebugFontInit("fonts/DejaVuSansMono.ttf", 12);
  83         //scr.DebugFontInit("fonts/DejaVuSansMono.ttf", 18);
  84         scr.SetMouseHandler(RatCatcher);
  85
  86         ifstream tmp;
  87         istream * script_input = NULL;
  88         if (script_filename != NULL)
  89         {
  90                 if (strcmp(script_filename, "stdin") == 0)
  91                         script_input = &cin;
  92                 else
  93                 {
  94                         tmp.open(script_filename);
  95                         script_input = &tmp;
  96                 }
  97         }
  98         DebugScript script(script_input);
  99
 100         double total_cpu_time = 0;
 101         double total_gpu_time = 0;
 102         double total_real_time = 0;
 103
 104         // MINGW doesn't support a lot of ctime stuff here
 105         #ifndef __MINGW32__
 106         struct timespec real_clock_start;
 107         struct timespec real_clock_now;
 108         struct timespec real_clock_prev;
 109         clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_start);
 110         real_clock_now = real_clock_start;
 111         #endif
 112
 113
 114         double frames = 0;
 115         double data_rate = 0; // period between data output to stdout (if <= 0 there will be no output)
 116         uint64_t data_points = 0;
 117         setbuf(stdout, NULL);
 118         int frame_number = 0;
 119         while (scr.PumpEvents() && (max_frames < 0 || frame_number++ < max_frames))
 120         {
 121                 #ifndef __MINGW32__
 122                 real_clock_prev = real_clock_now;
 123                 #endif
 124                 ++frames;
 125                 scr.Clear();
 126                 //view.ForceBoundsDirty();
 127                 //view.ForceBufferDirty();
 128                 //view.ForceRenderDirty();
 129
 130                 if (script_filename)
 131                 {
 132                         if (script.Execute(&view, &scr))
 133                                 return;
 134                 }
 135
 136                 view.Render(scr.ViewportWidth(), scr.ViewportHeight());
 137
 138                 double cpu_frame = scr.GetLastFrameTimeCPU();
 139                 double gpu_frame = scr.GetLastFrameTimeGPU();
 140                 total_cpu_time += cpu_frame; total_gpu_time += gpu_frame;
 141
 142                 #ifndef __MINGW32__
 143                 clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_now);
 144                 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);
 145                 #else
 146                 double real_frame = cpu_frame;
 147                 #endif
 148
 149                 total_real_time += real_frame;
 150                 if (data_rate > 0 && total_real_time > data_rate*(data_points+1))
 151                 {
 152                         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);
 153                         data_points++;
 154                 }
 155
 156
 157
 158
 159                 scr.DebugFontPrintF("Top Left: (%s,%s)\n", Str(view.GetBounds().x).c_str(),Str(view.GetBounds().y).c_str());
 160                 scr.DebugFontPrintF("Width: %s\n", Str(view.GetBounds().w).c_str());
 161                 scr.DebugFontPrintF("Zoom: %s %%\n", Str(VReal(100)/VReal(view.GetBounds().w)).c_str());
 162                 //scr.DebugFontPrintF("Similar size: %s\n", HumanScale(view.GetBounds().w * VReal(22e-3)));
 163
 164                 #if 1
 165                 scr.DebugFontPrintF("Rendered frame %lu\n", (uint64_t)frames);
 166                 scr.DebugFontPrintF("Lazy Rendering = %d\n", view.UsingLazyRendering());
 167                 /*if (cpu_frame > 0 && total_cpu_time > 0)
 168                         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);
 169                 if (gpu_frame > 0 && total_gpu_time > 0)
 170                         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);
 171                         */
 172                 if (real_frame > 0 && total_real_time > 0)
 173                         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);
 174
 175                 //scr.DebugFontPrintF("View bounds: %s\n", view.GetBounds().Str().c_str());
 176                 scr.DebugFontPrintF("type of Real == %s\n", g_real_name[REALTYPE]);
 177                 //#if REALTYPE == REAL_MPFRCPP
 178                 //      scr.DebugFontPrintf("Precision: %s\nRounding: %s\n");
 179                 //#endif
 180
 181                 #ifdef TRANSFORM_OBJECTS_NOT_VIEW
 182                 scr.DebugFontPrint("Doing cumulative coordinate transforms on Objects.\n");
 183                 #else
 184                 if (view.UsingGPUTransform())
 185                 {
 186                         scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
 187                 }
 188                 else
 189                 {
 190                         scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
 191                 }
 192                 #endif
 193
 194                 #ifdef TRANSFORM_BEZIERS_TO_PATH
 195                         scr.DebugFontPrint("Beziers have been transformed to Path\n");
 196                 #endif
 197
 198
 199                 if (view.UsingGPURendering())
 200                 {
 201                         scr.DebugFontPrint("Doing rendering using GPU.\n");
 202                 }
 203                 else
 204                 {
 205                         scr.DebugFontPrint("Doing rendering using CPU.\n");
 206                 }
 207                 #endif // 0
 208
 209                 scr.Present();
 210         }
 211 }