+ View view(doc, scr, bounds, c);
+ if (input != NULL)
+ scr.RenderBMP(input);
+ view.Render();
+ if (output != NULL)
+ scr.ScreenShot(output);
+ scr.Present();
+}
+
+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))
+{
+ // order is important... segfaults occur when screen (which inits GL) is not constructed first -_-
+ Screen scr;
+ View view(doc,scr, bounds, c);
+ scr.DebugFontInit("DejaVuSansMono.ttf");
+ scr.SetMouseHandler([&](int x, int y, int buttons, int wheel) // [?] wtf
+ {
+ static bool oldButtonDown = false;
+ static int oldx, oldy;
+ if (buttons == 3 && !oldButtonDown)
+ {
+ oldButtonDown = true;
+ view.ToggleGPUTransform();
+ oldx = x;
+ oldy = y;
+ return;
+ }
+ if (buttons == 2 && !oldButtonDown)
+ {
+ oldButtonDown = true;
+ view.ToggleGPURendering();
+ oldx = x;
+ oldy = y;
+ }
+ if (buttons && !oldButtonDown)
+ {
+ // We're beginning a drag.
+ oldButtonDown = true;
+ oldx = x;
+ oldy = y;
+ scr.SetMouseCursor(Screen::CursorMove);
+ }
+ if (buttons)
+ {
+ #if REAL == REAL_RATIONAL
+ view.Translate(Real(oldx, scr.ViewportWidth()) -Real(x,scr.ViewportWidth()), Real(oldy, scr.ViewportHeight()) - Real(y,scr.ViewportHeight()));
+ #else
+ view.Translate(Real(oldx-x)/Real(scr.ViewportWidth()), Real(oldy-y)/Real(scr.ViewportHeight()));
+ #endif
+ }
+ else
+ {
+ oldButtonDown = false;
+ scr.SetMouseCursor(Screen::CursorArrow);
+ }
+ oldx = x;
+ oldy = y;
+
+ if (wheel)
+ {
+ #if REAL == REAL_RATIONAL
+ view.ScaleAroundPoint(Real(x,scr.ViewportWidth()), Real(y,scr.ViewportHeight()), Real(20-wheel, 20));
+ #else
+ view.ScaleAroundPoint(Real(x)/Real(scr.ViewportWidth()),Real(y)/Real(scr.ViewportHeight()), Real(expf(-wheel/20.f)));
+ #endif
+
+ }
+ }
+ );
+
+ double total_cpu_time = 0;
+ double total_gpu_time = 0;
+ double total_real_time = 0;
+ struct timespec real_clock_start;
+ struct timespec real_clock_now;
+ struct timespec real_clock_prev;
+ clock_gettime(CLOCK_MONOTONIC_RAW, &real_clock_start);
+ real_clock_now = real_clock_start;
+ double frames = 0;
+ double data_rate = 1; // period between data output to stdout (if <= 0 there will be no output)
+ uint64_t data_points = 0;
+ setbuf(stdout, NULL);