GL init: Don't die if wglCreateContextAttribsARB is supported but returns 0.

Windows/OpenGLBase.cpp

@@ -12,7 +12,7 @@ static HDC			hDC=NULL;								// Private GDI Device Context
 static HGLRC		hRC=NULL;								// Permanent Rendering Context
 static HWND			hWnd=NULL;								// Holds Our Window Handle
 static HINSTANCE	hInstance;								// Holds The Instance Of The Application
-
+	
 static int xres, yres;
 
 // TODO: Make config?
@@ -174,15 +174,28 @@ bool GL_Init(HWND window, std::string *error_message) {
 
 	HGLRC	m_hrc;
 	if(wglewIsSupported("WGL_ARB_create_context") == 1) {
-		m_hrc = wglCreateContextAttribsARB(hDC,0, attribs);
-		wglMakeCurrent(NULL,NULL);
-		wglDeleteContext(hRC);
-		wglMakeCurrent(hDC, m_hrc);
+		m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs);
+		if (!m_hrc) {
+			// Fall back
+			m_hrc = hRC;
+		} else {
+			// Switch to the new ARB context.
+			wglMakeCurrent(NULL, NULL);
+			wglDeleteContext(hRC);
+			wglMakeCurrent(hDC, m_hrc);
+		}
 	} else {
 		// We can't make a GL 3.x context. Use an old style context (GL 2.1 and before)
 		m_hrc = hRC;
 	}
 
+	if (!m_hrc) {
+		*error_message = "No m_hrc";
+		return false;
+	}
+
+	hRC = m_hrc;
+
 	//Checking GL version
 	const char *GLVersionString = (const char *)glGetString(GL_VERSION);
 
@@ -191,13 +204,6 @@ bool GL_Init(HWND window, std::string *error_message) {
 	glGetIntegerv(GL_MAJOR_VERSION, &OpenGLVersion[0]);
 	glGetIntegerv(GL_MINOR_VERSION, &OpenGLVersion[1]);
 
-	if (!m_hrc) {
-		*error_message = "No m_hrc";
-		return false;
-	}
-
-	hRC = m_hrc;
-
 	glstate.Initialize();
 	setVSync(0);
 	if (enableGLDebug && glewIsSupported("GL_ARB_debug_output")) {

Windows/WndMainWindow.cpp

@@ -55,7 +55,7 @@ namespace MainWindow
 	TCHAR *szWindowClass = TEXT("PPSSPPWnd");
 	TCHAR *szDisplayClass = TEXT("PPSSPPDisplay");
 
-	// Foward declarations of functions included in this code module:
+	// Forward declarations of functions included in this code module:
 	LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
 	LRESULT CALLBACK DisplayProc(HWND, UINT, WPARAM, LPARAM);
 	LRESULT CALLBACK About(HWND, UINT, WPARAM, LPARAM);