Add skia to the repository.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@16 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 64 insertions, 0 deletions

diff --git a/skia/include/SkLayerRasterizer.h b/skia/include/SkLayerRasterizer.h
new file mode 100644
index 0000000..6a59e94
--- /dev/null
+++ b/skia/include/SkLayerRasterizer.h
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+/* include/graphics/SkLayerRasterizer.h
+**
+** Copyright 2006, Google Inc.
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#ifndef SkLayerRasterizer_DEFINED
+#define SkLayerRasterizer_DEFINED
+
+#include "SkRasterizer.h"
+#include "SkDeque.h"
+#include "SkScalar.h"
+
+class SkPaint;
+
+class SkLayerRasterizer : public SkRasterizer {
+public:
+            SkLayerRasterizer();
+    virtual ~SkLayerRasterizer();
+    
+    void addLayer(const SkPaint& paint)
+    {
+        this->addLayer(paint, 0, 0);
+    }
+
+	/**	Add a new layer (above any previous layers) to the rasterizer.
+		The layer will extract those fields that affect the mask from
+		the specified paint, but will not retain a reference to the paint
+		object itself, so it may be reused without danger of side-effects.
+	*/
+    void addLayer(const SkPaint& paint, SkScalar dx, SkScalar dy);
+
+    // overrides from SkFlattenable
+    virtual Factory getFactory();
+    virtual void    flatten(SkFlattenableWriteBuffer&);
+
+protected:
+    SkLayerRasterizer(SkFlattenableReadBuffer&);
+
+    // override from SkRasterizer
+    virtual bool onRasterize(const SkPath& path, const SkMatrix& matrix,
+                             const SkIRect* clipBounds,
+                             SkMask* mask, SkMask::CreateMode mode);
+
+private:
+    SkDeque fLayers;
+    
+    static SkFlattenable* CreateProc(SkFlattenableReadBuffer&);
+
+    typedef SkRasterizer INHERITED;
+};
+
+#endif