Support doing coordinate transforms on the CPU

[ipdf/code.git] / src / main.h

diff --git a/src/main.h b/src/main.h
index 2346119..46c1544 100644 (file)
--- a/src/main.h
+++ b/src/main.h
@@ -3,19 +3,42 @@
 #include "document.h"
 #include "view.h"
 #include "screen.h"
+#include <unistd.h>
 
 
 using namespace std;
 using namespace IPDF;
 
-inline void MainLoop(Document & doc)
+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))
 {
-       View view(doc);
+       View view(doc, bounds, c);
        Screen scr;
-       scr.SetMouseHandler([&](int x, int y, int buttons, int wheel)
+       scr.RenderBMP(input);
+       view.Render();
+       scr.Present();
+       sleep(5);
+       scr.RenderBMP(input);
+       view.Render();
+       scr.ScreenShot(output);
+}
+
+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))
+{
+       View view(doc,bounds, c);
+       Screen scr;
+       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 > 1 && !oldButtonDown)
+               {
+                       oldButtonDown = true;
+                       view.ToggleGPUTransform();
+                       oldx = x;
+                       oldy = y;
+                       return;
+               }
                if (buttons && !oldButtonDown)
                {
                        // We're beginning a drag.
@@ -42,9 +65,23 @@ inline void MainLoop(Document & doc)
                }
        }
        );
+
+       double init_time = SDL_GetPerformanceCounter();
        while (scr.PumpEvents())
        {
+               scr.Clear();
                view.Render();
+               scr.DebugFontPrintF("[CPU] Render took %lf ms (%lf FPS)\n", (SDL_GetPerformanceCounter() - init_time)* 1000.0/SDL_GetPerformanceFrequency(), SDL_GetPerformanceFrequency()/(SDL_GetPerformanceCounter() - init_time));
+               scr.DebugFontPrintF("View bounds: (%f, %f) - (%f, %f)\n", view.GetBounds().x, view.GetBounds().y, view.GetBounds().w, view.GetBounds().h);
+               if (view.UsingGPUTransform())
+               {
+                       scr.DebugFontPrint("Doing coordinate transform on the GPU.\n");
+               }
+               else
+               {
+                       scr.DebugFontPrint("Doing coordinate transform on the CPU.\n");
+               }
                scr.Present();
+               init_time = SDL_GetPerformanceCounter();
        }
 }