From 790dee3d7e3ab8a4e52eb29990c65222e08db710 Mon Sep 17 00:00:00 2001
From: Slava Pestov <slava@slava-pestovs-macbook-pro.local>
Date: Sun, 1 Feb 2009 20:32:26 -0600
Subject: [PATCH] core-graphics: fix problem when rendering transparent
 offscreen bitmaps, use calloc instead of malloc so that memory is zeroed

---
 basis/core-graphics/core-graphics.factor | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/basis/core-graphics/core-graphics.factor b/basis/core-graphics/core-graphics.factor
index 92bd9f001f..23d4126d66 100644
--- a/basis/core-graphics/core-graphics.factor
+++ b/basis/core-graphics/core-graphics.factor
@@ -112,7 +112,7 @@ FUNCTION: void* CGBitmapContextGetData ( CGContextRef c ) ;
     product "uint" heap-size * ;
 
 : malloc-bitmap-data ( dim -- alien )
-    bitmap-size malloc &free ;
+    bitmap-size 1 calloc &free ;
 
 : bitmap-color-space ( -- color-space )
     CGColorSpaceCreateDeviceRGB &CGColorSpaceRelease ;