The Tor Browser: gfx/skia/trunk/src/core/SkXfermode

     1 #ifndef SkXfermode_proccoeff_DEFINED

     2 #define SkXfermode_proccoeff_DEFINED

     4 #include "SkXfermode.h"

     5 #include "SkReadBuffer.h"

     6 #include "SkWriteBuffer.h"

     8 struct ProcCoeff {

     9     SkXfermodeProc      fProc;

    10     SkXfermode::Coeff   fSC;

    11     SkXfermode::Coeff   fDC;

    12 };

    14 #define CANNOT_USE_COEFF    SkXfermode::Coeff(-1)

    16 class SkProcCoeffXfermode : public SkProcXfermode {

    17 public:

    18     static SkProcCoeffXfermode* Create(const ProcCoeff& rec, Mode mode) {

    19         return SkNEW_ARGS(SkProcCoeffXfermode, (rec, mode));

    20     }

    22     virtual bool asMode(Mode* mode) const SK_OVERRIDE;

    24     virtual bool asCoeff(Coeff* sc, Coeff* dc) const SK_OVERRIDE;

    26 #if SK_SUPPORT_GPU

    27     virtual bool asNewEffect(GrEffectRef** effect,

    28                              GrTexture* background) const SK_OVERRIDE;

    29 #endif

    31     SK_TO_STRING_OVERRIDE()

    32     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkProcCoeffXfermode)

    34 protected:

    35     SkProcCoeffXfermode(const ProcCoeff& rec, Mode mode)

    36             : INHERITED(rec.fProc) {

    37         fMode = mode;

    38         // these may be valid, or may be CANNOT_USE_COEFF

    39         fSrcCoeff = rec.fSC;

    40         fDstCoeff = rec.fDC;

    41     }

    43     SkProcCoeffXfermode(SkReadBuffer& buffer);

    45     virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE;

    47     Mode getMode() const {

    48         return fMode;

    49     }

    51 private:

    52     Mode    fMode;

    53     Coeff   fSrcCoeff, fDstCoeff;

    55     typedef SkProcXfermode INHERITED;

    56 };

    58 #endif // #ifndef SkXfermode_proccoeff_DEFINED

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