template project, first version

Simulations/util/util.cpp

@@ -0,0 +1,58 @@
+#include "util.h"
+
+#include <Windows.h>
+
+#include <DXUT.h>
+
+
+std::wstring GetExePath()
+{
+	// get full path to .exe
+	const size_t bufferSize = 1024;
+	wchar_t buffer[bufferSize];
+	if(0 == GetModuleFileNameW(nullptr, buffer, bufferSize))
+	{
+		return std::wstring(L"");
+	}
+	std::wstring path(buffer);
+	// extract path (remove filename)
+	size_t posSlash = path.find_last_of(L"/\\");
+	if(posSlash != std::wstring::npos)
+	{
+		path = path.substr(0, posSlash + 1);
+	}
+	return path;
+}
+
+
+void UpdateWindowTitle(const std::wstring& appName)
+{
+	// check if we should update the window title
+	bool update = false;
+
+	// update if window size changed
+	static int s_windowWidth = 0;
+	static int s_windowHeight = 0;
+	if (s_windowWidth != DXUTGetWindowWidth() || s_windowHeight != DXUTGetWindowHeight()) {
+		s_windowWidth = DXUTGetWindowWidth();
+		s_windowHeight = DXUTGetWindowHeight();
+		update = true;
+	}
+
+	// update if fps changed (updated once per second by DXUT)
+	static float s_fps = 0.0f;
+	static float s_mspf = 0.0f;
+	if (s_fps != DXUTGetFPS()) {
+		s_fps = DXUTGetFPS();
+		s_mspf = 1000.0f / s_fps;
+		update = true;
+	}
+
+	// update window title if something relevant changed
+	if (update) {
+		const size_t len = 512;
+		wchar_t str[len];
+		swprintf_s(str, len, L"%s %ux%u @ %.2f fps / %.2f ms", appName.c_str(), s_windowWidth, s_windowHeight, s_fps, s_mspf);
+		SetWindowText(DXUTGetHWND(), str);
+	}
+}