From fc28bf2200135de81365558cb212c17b771a05b2 Mon Sep 17 00:00:00 2001
From: nyamatongwe <unknown>
Date: Sun, 10 Jul 2011 11:48:20 +1000
Subject: Make copies of bitmap images so they can outlive their surface.

---
 cocoa/PlatCocoa.mm | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/cocoa/PlatCocoa.mm b/cocoa/PlatCocoa.mm
index 4465e36ae..a4de2ecdf 100644
--- a/cocoa/PlatCocoa.mm
+++ b/cocoa/PlatCocoa.mm
@@ -360,9 +360,13 @@ CGImageRef SurfaceImpl::GetImage()
   const int bitmapBytesPerRow = ((int) bitmapWidth * BYTES_PER_PIXEL);
   const int bitmapByteCount = (bitmapBytesPerRow * (int) bitmapHeight);
   
+  // Make a copy of the bitmap data for the image creation and divorce it
+  // From the SurfaceImpl lifetime
+  CFDataRef dataRef = CFDataCreate(kCFAllocatorDefault, bitmapData, bitmapByteCount);
+
   // Create a data provider.
-  CGDataProviderRef dataProvider = CGDataProviderCreateWithData(NULL, bitmapData, bitmapByteCount, 
-                                                                NULL);
+  CGDataProviderRef dataProvider = CGDataProviderCreateWithCFData(dataRef);
+
   CGImageRef image = NULL;
   if (dataProvider != NULL)
   {
@@ -388,6 +392,9 @@ CGImageRef SurfaceImpl::GetImage()
   CGDataProviderRelease(dataProvider);
   dataProvider = NULL;
   
+  // Done with the data provider.
+  CFRelease(dataRef);
+    
   return image;
 }
 
@@ -791,6 +798,7 @@ void SurfaceImpl::CopyImageRectangle(Surface &surfaceSource, PRectangle srcRect,
   CGContextClipToRect (gc, dst);
   CGContextDrawImage (gc, drawRect, image);
   CGContextRestoreGState (gc);
+  CGImageRelease(image);
 }
 
 void SurfaceImpl::Copy(PRectangle rc, Scintilla::Point from, Surface &surfaceSource) {
-- 
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