--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebKit/Misc/WebGraphicsExtras.c	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import "WebGraphicsExtras.h"
+
+#import <Accelerate/Accelerate.h>
+#import <JavaScriptCore/Assertions.h>
+#import <dlfcn.h>
+
+unsigned WebConvertBGRAToARGB(unsigned char *offscreenBuffer, int rowBytes, int x, int y, int width, int height)
+{
+    
+    static vImage_Error (*softLink_vImagePermuteChannels_ARGB8888)(const vImage_Buffer *src, const vImage_Buffer *dest, const uint8_t permuteMap[4], vImage_Flags flags) = NULL;
+
+    if (!softLink_vImagePermuteChannels_ARGB8888) {
+        void *framework = dlopen("/System/Library/Frameworks/Accelerate.framework/Accelerate", RTLD_NOW);
+        ASSERT(framework);
+        softLink_vImagePermuteChannels_ARGB8888 = dlsym(framework, "vImagePermuteChannels_ARGB8888");
+        ASSERT(softLink_vImagePermuteChannels_ARGB8888);
+    }
+        
+    void *swizzleImageBase = offscreenBuffer + y * rowBytes + x * 4;
+    vImage_Buffer vImage = { swizzleImageBase, height, width, rowBytes };
+    uint8_t vImagePermuteMap[4] = { 3, 2, 1, 0 }; // Where { 0, 1, 2, 3 } would leave the channels unchanged; this map converts BGRA to ARGB
+    vImage_Error vImageError = softLink_vImagePermuteChannels_ARGB8888(&vImage, &vImage, vImagePermuteMap, 0);
+    if (vImageError) {
+        LOG_ERROR("Could not convert BGRA image to ARGB: %d", vImageError);
+        return FALSE;
+    }
+    
+    return TRUE;
+}