1 #ifndef SkXfermode_proccoeff_DEFINED 2 #define SkXfermode_proccoeff_DEFINED 3 4 #include "SkXfermode.h" 5 #include "SkReadBuffer.h" 6 #include "SkWriteBuffer.h" 7 8 struct ProcCoeff { 9 SkXfermodeProc fProc; 10 SkXfermode::Coeff fSC; 11 SkXfermode::Coeff fDC; 12 }; 13 14 #define CANNOT_USE_COEFF SkXfermode::Coeff(-1) 15 16 class SK_API SkProcCoeffXfermode : public SkXfermode { 17 public: SkProcCoeffXfermode(const ProcCoeff & rec,Mode mode)18 SkProcCoeffXfermode(const ProcCoeff& rec, Mode mode) { 19 fMode = mode; 20 fProc = rec.fProc; 21 // these may be valid, or may be CANNOT_USE_COEFF 22 fSrcCoeff = rec.fSC; 23 fDstCoeff = rec.fDC; 24 } 25 26 virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count, 27 const SkAlpha aa[]) const override; 28 virtual void xfer16(uint16_t dst[], const SkPMColor src[], int count, 29 const SkAlpha aa[]) const override; 30 virtual void xferA8(SkAlpha dst[], const SkPMColor src[], int count, 31 const SkAlpha aa[]) const override; 32 33 bool asMode(Mode* mode) const override; 34 35 bool supportsCoverageAsAlpha() const override; 36 37 bool isOpaque(SkXfermode::SrcColorOpacity opacityType) const override; 38 39 #if SK_SUPPORT_GPU 40 virtual bool asFragmentProcessor(GrFragmentProcessor**, 41 GrTexture* background) const override; 42 43 virtual bool asXPFactory(GrXPFactory**) const override; 44 #endif 45 46 SK_TO_STRING_OVERRIDE() 47 SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkProcCoeffXfermode) 48 49 protected: 50 void flatten(SkWriteBuffer& buffer) const override; 51 getMode()52 Mode getMode() const { return fMode; } 53 getProc()54 SkXfermodeProc getProc() const { return fProc; } 55 56 private: 57 SkXfermodeProc fProc; 58 Mode fMode; 59 Coeff fSrcCoeff, fDstCoeff; 60 61 friend class SkXfermode; 62 63 typedef SkXfermode INHERITED; 64 }; 65 66 #endif // #ifndef SkXfermode_proccoeff_DEFINED 67