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00017 #ifndef SkAvoidXfermode_DEFINED
00018 #define SkAvoidXfermode_DEFINED
00019
00020 #include "SkXfermode.h"
00021
00027 class SkAvoidXfermode : public SkXfermode {
00028 public:
00029 enum Mode {
00030 kAvoidColor_Mode,
00031 kTargetColor_Mode
00032 };
00033
00044 SkAvoidXfermode(SkColor opColor, U8CPU tolerance, Mode mode);
00045
00046
00047 virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
00048 const SkAlpha aa[]);
00049 virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count,
00050 const SkAlpha aa[]);
00051 virtual void xfer4444(uint16_t dst[], const SkPMColor src[], int count,
00052 const SkAlpha aa[]);
00053 virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count,
00054 const SkAlpha aa[]);
00055
00056
00057 virtual Factory getFactory();
00058 virtual void flatten(SkFlattenableWriteBuffer&);
00059
00060 protected:
00061 SkAvoidXfermode(SkFlattenableReadBuffer&);
00062
00063 private:
00064 SkColor fOpColor;
00065 uint32_t fDistMul;
00066 Mode fMode;
00067
00068 static SkFlattenable* Create(SkFlattenableReadBuffer&);
00069
00070 typedef SkXfermode INHERITED;
00071 };
00072
00073 #endif