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/* include/graphics/SkEmbossMaskFilter.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 SkEmbossMaskFilter_DEFINED
#define SkEmbossMaskFilter_DEFINED
#include "SkMaskFilter.h"
/** \class SkEmbossMaskFilter
This mask filter creates a 3D emboss look, by specifying a light and blur amount.
*/
class SkEmbossMaskFilter : public SkMaskFilter {
public:
struct Light {
SkScalar fDirection[3]; // x,y,z
uint16_t fPad;
uint8_t fAmbient;
uint8_t fSpecular; // exponent, 4.4 right now
};
SkEmbossMaskFilter(const Light& light, SkScalar blurRadius);
// overrides from SkMaskFilter
// This method is not exported to java.
virtual SkMask::Format getFormat();
// This method is not exported to java.
virtual bool filterMask(SkMask* dst, const SkMask& src, const SkMatrix& matrix, SkIPoint* margin);
// overrides from SkFlattenable
// This method is not exported to java.
virtual Factory getFactory();
// This method is not exported to java.
virtual void flatten(SkFlattenableWriteBuffer&);
protected:
SkEmbossMaskFilter(SkFlattenableReadBuffer&);
private:
Light fLight;
SkScalar fBlurRadius;
static SkFlattenable* CreateProc(SkFlattenableReadBuffer&);
typedef SkMaskFilter INHERITED;
};
#endif
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