X-Git-Url: http://git.ithinksw.org/ITKit.git/blobdiff_plain/1b4d28edd06e98cd8b06a129b4aad3e29de38938..HEAD:/ITWindowEffect.m

diff --git a/ITWindowEffect.m b/ITWindowEffect.m
index b58a0fb..a99f54a 100644
--- a/ITWindowEffect.m
+++ b/ITWindowEffect.m
@@ -8,7 +8,7 @@
 
 + (NSArray *)effectClasses
 {
-    NSMutableArray *classes = [NSArray arrayWithObjects:
+    NSMutableArray *classes = [[NSArray arrayWithObjects:
         NSClassFromString(@"ITCutWindowEffect"),
         NSClassFromString(@"ITDissolveWindowEffect"),
         NSClassFromString(@"ITSlideHorizontallyWindowEffect"),
@@ -17,19 +17,22 @@
         NSClassFromString(@"ITZoomWindowEffect"),
         NSClassFromString(@"ITSpinWindowEffect"),
         NSClassFromString(@"ITSpinAndZoomWindowEffect"),
-        nil];
+        nil] mutableCopy];
 	
-	NSOpenGLView *view = [[NSOpenGLView alloc] initWithFrame:NSMakeRect(0, 0, 1, 1) pixelFormat:[NSOpenGLView defaultPixelFormat]];
-	if ([view openGLContext]) {
-		NSString *string = [NSString stringWithCString:glGetString(GL_EXTENSIONS)];
-		NSRange result = [string rangeOfString:@"ARB_fragment_program"];
-		if (result.location != NSNotFound) {
-			[classes addObject:NSClassFromString(@"ITCoreImageWindowEffect")];
+	long version;
+	if ((Gestalt(gestaltSystemVersion, &version) == noErr) && (version >= 4160) && (version < 4166)) {
+		NSOpenGLView *view = [[NSOpenGLView alloc] initWithFrame:NSMakeRect(0, 0, 1, 1) pixelFormat:[NSOpenGLView defaultPixelFormat]];
+		if ([view openGLContext]) {
+			NSString *string = [NSString stringWithCString:glGetString(GL_EXTENSIONS)];
+			NSRange result = [string rangeOfString:@"ARB_fragment_program"];
+			if (result.location != NSNotFound) {
+				[classes addObject:NSClassFromString(@"ITCoreImageWindowEffect")];
+			}
 		}
+		[view release];
 	}
-	[view release];
 	
-    return classes;
+    return [classes autorelease];
 }
 
 - (id)initWithWindow:(NSWindow *)window