increase update rate

src/app.cpp

@@ -8,6 +8,7 @@
 App::App()
 {
 	_tracking_origin = vr::TrackingUniverseStanding;
+	_frames_since_framebuffer = 999;
 
 	InitOVR();
 	InitX11();
@@ -152,6 +153,7 @@ void App::Update()
 			panel.Update();
 		}
 	}
+	_frames_since_framebuffer += 1;
 }
 
 void App::UpdateInput()
@@ -185,6 +187,11 @@ void App::UpdateInput()
 
 void App::UpdateFramebuffer()
 {
+	if (_frames_since_framebuffer < 2)
+	{
+		return;
+	}
+	_frames_since_framebuffer = 0;
 	auto frame = XGetImage(
 		_xdisplay,
 		_root_window,

src/app.h

@@ -50,6 +50,7 @@ class App
 	Window _root_window;
 	GLFWwindow *_gl_window;
 	GLuint _gl_frame;
+	int _frames_since_framebuffer;
 
 	int _root_width;
 	int _root_height;

src/main.cpp

@@ -1,7 +1,7 @@
 #include "app.h"
 #include <signal.h>
 
-#define FRAMERATE 30
+#define UPDATE_RATE 60
 
 bool should_exit = false;
 
@@ -19,7 +19,7 @@ int main()
 	while (!should_exit)
 	{
 		app.Update();
-		usleep(1000000 / FRAMERATE);
+		usleep(1000000 / UPDATE_RATE);
 	}
 	printf("\nShutting down\n");
 	return 0;