src/main.h

   1 #include "common.h"
   2
   3 #include "document.h"
   4 #include "view.h"
   5 #include "screen.h"
   6 #include <unistd.h>
   7
   8
   9 using namespace std;
  10 using namespace IPDF;
  11
  12 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))
  13 {
  14
  15         Screen scr;
  16         View view(doc, scr, bounds, c);
  17         if (input != NULL)
  18                 scr.RenderBMP(input);
  19         view.Render();
  20         if (output != NULL)
  21                 scr.ScreenShot(output);
  22         scr.Present();
  23 }
  24
  25 inline void MainLoop(Document & doc, const Rect & bounds = Rect(0,0,1,1), const Colour & c = Colour(0.f,0.f,0.f,1.f))
  26 {
  27         // order is important... segfaults occur when screen (which inits GL) is not constructed first -_-
  28         Screen scr;
  29         View view(doc,scr, bounds, c);
  30         scr.DebugFontInit("DejaVuSansMono.ttf");
  31         scr.SetMouseHandler([&](int x, int y, int buttons, int wheel) // [?] wtf
  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()), expf(-wheel/20.f));
  73                 }
  74         }
  75         );
  76
  77         while (scr.PumpEvents())
  78         {
  79                 scr.Clear();
  80                 view.Render(scr.ViewportWidth(), scr.ViewportHeight());
  81                 scr.DebugFontPrintF("[CPU] Render took %lf ms (%lf FPS)\n", (scr.GetLastFrameTimeCPU())* 1000.0, 1.0/scr.GetLastFrameTimeCPU());
  82                 scr.DebugFontPrintF("[GPU] Render took %lf ms (%lf FPS)\n", (scr.GetLastFrameTimeGPU())* 1000.0, 1.0/scr.GetLastFrameTimeGPU());
  83                 scr.DebugFontPrintF("View bounds: %s\n", view.GetBounds().Str().c_str());
  84                 if (view.UsingGPUTransform())
  85                 {
  86                         scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
  87                 }
  88                 else
  89                 {
  90                         scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
  91                 }
  92                 if (view.UsingGPURendering())
  93                 {
  94                         scr.DebugFontPrint("Doing rendering using GPU.\n");
  95                 }
  96                 else
  97                 {
  98                         scr.DebugFontPrint("Doing rendering using CPU.\n");
  99                 }
 100                 scr.Present();
 101         }
 102 }