macos: we only need 24-bit for color

diff --git a/gdk/macos/gdkmacosglcontext.c b/gdk/macos/gdkmacosglcontext.c
index 00ddfefcdefaa2d21ca9a4237dcb2e9dbdd24c84..8f7f317cecf267c5ca051098e74443147c2cb113 100644 (file)
--- a/gdk/macos/gdkmacosglcontext.c
+++ b/gdk/macos/gdkmacosglcontext.c
@@ -101,7 +101,7 @@ create_pixel_format (int      major,
     NSOpenGLPFAAccelerated,
     NSOpenGLPFADoubleBuffer,
     NSOpenGLPFABackingStore,
-    NSOpenGLPFAColorSize, 32,
+    NSOpenGLPFAColorSize, 24,
     NSOpenGLPFAAlphaSize, 8,
 
     (NSOpenGLPixelFormatAttribute)nil