1 files changed, 56 insertions, 0 deletions
diff --git a/Source/WebKit2/Shared/cg/ShareableBitmapCG.cpp b/Source/WebKit2/Shared/cg/ShareableBitmapCG.cpp
new file mode 100644
index 0000000..08c5dc3
--- /dev/null
+++ b/Source/WebKit2/Shared/cg/ShareableBitmapCG.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2010 Apple 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
+ */
+
+#include "ShareableBitmap.h"
+
+#include <WebCore/GraphicsContext.h>
+#include <wtf/RetainPtr.h>
+#include "CGUtilities.h"
+
+using namespace WebCore;
+
+namespace WebKit {
+
+PassOwnPtr<GraphicsContext> ShareableBitmap::createGraphicsContext()
+{
+    RetainPtr<CGColorSpaceRef> colorSpace(AdoptCF, CGColorSpaceCreateDeviceRGB());
+    RetainPtr<CGContextRef> bitmapContext(AdoptCF, CGBitmapContextCreate(data(), m_size.width(), m_size.height(), 8,  m_size.width() * 4, colorSpace.get(), 
+                                                                         kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host));
+
+    // We want the origin to be in the top left corner so flip the backing store context.
+    CGContextTranslateCTM(bitmapContext.get(), 0, m_size.height());
+    CGContextScaleCTM(bitmapContext.get(), 1, -1);
+
+    return adoptPtr(new GraphicsContext(bitmapContext.get()));
+}
+
+void ShareableBitmap::paint(WebCore::GraphicsContext& context, const IntPoint& dstPoint, const IntRect& srcRect)
+{
+    OwnPtr<GraphicsContext> sourceContext(createGraphicsContext());
+
+    paintBitmapContext(context.platformContext(), sourceContext->platformContext(), dstPoint, srcRect);
+}
+        
+} // namespace WebKit