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      1 
      2 /*
      3  * Copyright 2013 Google Inc.
      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 #include "GrTypes.h"
     10 #include "GrColor.h"
     11 
     12 #ifndef GrBlend_DEFINED
     13 #define GrBlend_DEFINED
     14 
     15 static inline bool GrBlendCoeffRefsSrc(GrBlendCoeff coeff) {
     16     switch (coeff) {
     17         case kSC_GrBlendCoeff:
     18         case kISC_GrBlendCoeff:
     19         case kSA_GrBlendCoeff:
     20         case kISA_GrBlendCoeff:
     21             return true;
     22         default:
     23             return false;
     24     }
     25 }
     26 
     27 static inline bool GrBlendCoeffRefsDst(GrBlendCoeff coeff) {
     28     switch (coeff) {
     29         case kDC_GrBlendCoeff:
     30         case kIDC_GrBlendCoeff:
     31         case kDA_GrBlendCoeff:
     32         case kIDA_GrBlendCoeff:
     33             return true;
     34         default:
     35             return false;
     36     }
     37 }
     38 
     39 GrColor GrSimplifyBlend(GrBlendCoeff* srcCoeff,
     40                         GrBlendCoeff* dstCoeff,
     41                         GrColor srcColor, uint32_t srcCompFlags,
     42                         GrColor dstColor, uint32_t dstCompFlags,
     43                         GrColor constantColor);
     44 
     45 #endif
     46