grab from latest android
git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/effects/SkBlurMaskFilter.h b/include/effects/SkBlurMaskFilter.h
new file mode 100644
index 0000000..b90ea5e
--- /dev/null
+++ b/include/effects/SkBlurMaskFilter.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2006 The Android Open Source Project
+ *
+ * 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 SkBlurMaskFilter_DEFINED
+#define SkBlurMaskFilter_DEFINED
+
+// we include this since our callers will need to at least be able to ref/unref
+#include "SkMaskFilter.h"
+#include "SkScalar.h"
+
+class SkBlurMaskFilter {
+public:
+ enum BlurStyle {
+ kNormal_BlurStyle, //!< fuzzy inside and outside
+ kSolid_BlurStyle, //!< solid inside, fuzzy outside
+ kOuter_BlurStyle, //!< nothing inside, fuzzy outside
+ kInner_BlurStyle, //!< fuzzy inside, nothing outside
+
+ kBlurStyleCount
+ };
+
+ /** Create a blur maskfilter.
+ @param radius The radius to extend the blur from the original mask. Must be > 0.
+ @param style The BlurStyle to use
+ @return The new blur maskfilter
+ */
+ static SkMaskFilter* Create(SkScalar radius, BlurStyle style);
+
+ /** Create an emboss maskfilter
+ @param direction array of 3 scalars [x, y, z] specifying the direction of the light source
+ @param ambient 0...1 amount of ambient light
+ @param specular coefficient for specular highlights (e.g. 8)
+ @param blurRadius amount to blur before applying lighting (e.g. 3)
+ @return the emboss maskfilter
+ */
+ static SkMaskFilter* CreateEmboss( const SkScalar direction[3],
+ SkScalar ambient, SkScalar specular,
+ SkScalar blurRadius);
+
+private:
+ SkBlurMaskFilter(); // can't be instantiated
+};
+
+#endif
+