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      1 
      2 /*
      3  * Copyright 2006 The Android Open Source Project
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 
     10 #ifndef SkUnitMapper_DEFINED
     11 #define SkUnitMapper_DEFINED
     12 
     13 #include "SkRefCnt.h"
     14 #include "SkScalar.h"
     15 
     16 #include "SkFlattenable.h"
     17 
     18 class SkUnitMapper : public SkFlattenable {
     19 public:
     20     SK_DECLARE_INST_COUNT(SkUnitMapper)
     21 
     22     SkUnitMapper() {}
     23 
     24     /** Given a value in [0..0xFFFF], return a value in the same range.
     25     */
     26     virtual uint16_t mapUnit16(uint16_t x) = 0;
     27 
     28 protected:
     29     SkUnitMapper(SkFlattenableReadBuffer& rb) : SkFlattenable(rb) {}
     30 
     31 private:
     32     typedef SkFlattenable INHERITED;
     33 };
     34 
     35 #endif
     36