Cocoa Port:

- Fall back to using a legacy OpenGL context if the GPU driver rejects initializing a 3.2 Core Profile context.

desmume/src/cocoa/OGLDisplayOutput.h

@@ -405,6 +405,8 @@ public:
 	virtual void SetViewportSizeOGL(GLsizei w, GLsizei h);
 };
 
+OGLInfo* OGLInfoCreate_Legacy();
+
 extern OGLInfo* (*OGLInfoCreate_Func)();
 extern void (*glBindVertexArrayDESMUME)(GLuint id);
 extern void (*glDeleteVertexArraysDESMUME)(GLsizei n, const GLuint *ids);

desmume/src/cocoa/userinterface/DisplayWindowController.mm

@@ -1316,19 +1316,36 @@ static std::unordered_map<NSScreen *, DisplayWindowController *> _screenMap; //
 		(NSOpenGLPixelFormatAttribute)0, (NSOpenGLPixelFormatAttribute)0,
 		(NSOpenGLPixelFormatAttribute)0 };
 	
+	NSOpenGLPixelFormat *format = nil;
+	
 #ifdef _OGLDISPLAYOUTPUT_3_2_H_
 	// If we can support a 3.2 Core Profile context, then request that in our
 	// pixel format attributes.
 	if (IsOSXVersionSupported(10, 7, 0))
 	{
-		attributes[9] = kCGLPFAOpenGLProfile;
+		attributes[9] = NSOpenGLPFAOpenGLProfile;
-		attributes[10] = (CGLPixelFormatAttribute)kCGLOGLPVersion_3_2_Core;
+		attributes[10] = NSOpenGLProfileVersion3_2Core;
-		
 		OGLInfoCreate_Func = &OGLInfoCreate_3_2;
+		format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
+		
+		if (format == nil)
+		{
+			attributes[9] = NSOpenGLPFAOpenGLProfile;
+			attributes[10] = NSOpenGLProfileVersionLegacy;
+			OGLInfoCreate_Func = &OGLInfoCreate_Legacy;
+			format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
+		}
 	}
 #endif
 	
-	NSOpenGLPixelFormat *format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
+	if (format == nil)
+	{
+		attributes[9] = (NSOpenGLPixelFormatAttribute)0;
+		attributes[10] = (NSOpenGLPixelFormatAttribute)0;
+		OGLInfoCreate_Func = &OGLInfoCreate_Legacy;
+		format = [[NSOpenGLPixelFormat alloc] initWithAttributes:attributes];
+	}
+	
 	context = [[NSOpenGLContext alloc] initWithFormat:format shareContext:nil];
 	[format release];
 	cglDisplayContext = (CGLContextObj)[context CGLContextObj];