Bundle SkShader::asFragmentProcessor arguments in a struct

src/effects/gradients/SkRadialGradient.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkRadialGradient.h"
 #include "SkNx.h"
 
@@ skipping 294 matching lines @@
 sk_sp<GrFragmentProcessor> GrRadialGradient::TestCreate(GrProcessorTestData* d) {
     SkPoint center = {d->fRandom->nextUScalar1(), d->fRandom->nextUScalar1()};
     SkScalar radius = d->fRandom->nextUScalar1();
 
     SkColor colors[kMaxRandomGradientColors];
     SkScalar stopsArray[kMaxRandomGradientColors];
     SkScalar* stops = stopsArray;
     SkShader::TileMode tm;
     int colorCount = RandomGradientParams(d->fRandom, colors, &stops, &tm);
     auto shader = SkGradientShader::MakeRadial(center, radius, colors, stops, colorCount, tm);
-    sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(d->fContext,
-        GrTest::TestMatrix(d->fRandom), NULL, kNone_SkFilterQuality,
-        SkSourceGammaTreatment::kRespect);
+    SkMatrix viewMatrix = GrTest::TestMatrix(d->fRandom);
+    sk_sp<GrFragmentProcessor> fp = shader->asFragmentProcessor(SkShader::AsFPArgs(
+        d->fContext, &viewMatrix, NULL, kNone_SkFilterQuality, SkSourceGammaTreatment::kRespect));
     GrAlwaysAssert(fp);
     return fp;
 }
 
 /////////////////////////////////////////////////////////////////////
 
 void GrGLRadialGradient::emitCode(EmitArgs& args) {
     const GrRadialGradient& ge = args.fFp.cast<GrRadialGradient>();
     this->emitUniforms(args.fUniformHandler, ge);
     SkString t("length(");
     t.append(args.fFragBuilder->ensureFSCoords2D(args.fCoords, 0));
     t.append(")");
     this->emitColor(args.fFragBuilder,
                     args.fUniformHandler,
                     args.fGLSLCaps,
                     ge, t.c_str(),
                     args.fOutputColor,
                     args.fInputColor,
                     args.fTexSamplers);
 }
 
 /////////////////////////////////////////////////////////////////////
 
-sk_sp<GrFragmentProcessor> SkRadialGradient::asFragmentProcessor(
-                                                 GrContext* context,
-                                                 const SkMatrix& viewM,
-                                                 const SkMatrix* localMatrix,
-                                                 SkFilterQuality,
-                                                 SkSourceGammaTreatment) const {
-    SkASSERT(context);
+sk_sp<GrFragmentProcessor> SkRadialGradient::asFragmentProcessor(const AsFPArgs& args) const {
+    SkASSERT(args.fContext);
 
     SkMatrix matrix;
     if (!this->getLocalMatrix().invert(&matrix)) {
         return nullptr;
     }
-    if (localMatrix) {
+    if (args.fLocalMatrix) {
         SkMatrix inv;
-        if (!localMatrix->invert(&inv)) {
+        if (!args.fLocalMatrix->invert(&inv)) {
             return nullptr;
         }
         matrix.postConcat(inv);
     }
     matrix.postConcat(fPtsToUnit);
-    sk_sp<GrFragmentProcessor> inner(GrRadialGradient::Make(context, *this, matrix, fTileMode));
+    sk_sp<GrFragmentProcessor> inner(
+        GrRadialGradient::Make(args.fContext, *this, matrix, fTileMode));
     return GrFragmentProcessor::MulOutputByInputAlpha(std::move(inner));
 }
 
 #endif
 
 #ifndef SK_IGNORE_TO_STRING
 void SkRadialGradient::toString(SkString* str) const {
     str->append("SkRadialGradient: (");
 
     str->append("center: (");
     str->appendScalar(fCenter.fX);
     str->append(", ");
     str->appendScalar(fCenter.fY);
     str->append(") radius: ");
     str->appendScalar(fRadius);
     str->append(" ");
 
     this->INHERITED::toString(str);
 
     str->append(")");
 }
 #endif