Refactor how we store and use samplers in Ganesh

src/gpu/effects/GrTextureDomain.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 "GrTextureDomain.h"
 #include "GrInvariantOutput.h"
 #include "GrSimpleTextureEffect.h"
@@ skipping 174 matching lines @@
     GrTextureDomain::GLDomain         fGLDomain;
     typedef GrGLSLFragmentProcessor INHERITED;
 };
 
 void GrGLTextureDomainEffect::emitCode(EmitArgs& args) {
     const GrTextureDomainEffect& textureDomainEffect = args.fFp.cast<GrTextureDomainEffect>();
     const GrTextureDomain& domain = textureDomainEffect.textureDomain();
 
     GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
     SkString coords2D = fragBuilder->ensureFSCoords2D(args.fCoords, 0);
+    const GrGLSLSampler& sampler = args.fUniformHandler->getSampler(args.fTexSamplers[0]);
     fGLDomain.sampleTexture(fragBuilder,
                             args.fUniformHandler,
                             args.fGLSLCaps,
                             domain,
                             args.fOutputColor,
                             coords2D,
-                            args.fTexSamplers[0],
+                            sampler,
                             args.fInputColor);
 }
 
 void GrGLTextureDomainEffect::onSetData(const GrGLSLProgramDataManager& pdman,
                                         const GrProcessor& processor) {
     const GrTextureDomainEffect& textureDomainEffect = processor.cast<GrTextureDomainEffect>();
     const GrTextureDomain& domain = textureDomainEffect.textureDomain();
     fGLDomain.setData(pdman, domain, processor.texture(0)->origin());
 }
 
@@ skipping 80 matching lines @@
     bool bilerp = mode != GrTextureDomain::kRepeat_Mode ? d->fRandom->nextBool() : false;
     GrCoordSet coords = d->fRandom->nextBool() ? kLocal_GrCoordSet : kDevice_GrCoordSet;
     return GrTextureDomainEffect::Create(
         d->fTextures[texIdx],
         matrix,
         domain,
         mode,
         bilerp ? GrTextureParams::kBilerp_FilterMode : GrTextureParams::kNone_FilterMode,
         coords);
 }