Add requireHWAA param to GrPipelineBuilder constructor

src/gpu/GrPipelineBuilder.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrPipelineBuilder.h"
 
 #include "GrBlend.h"
 #include "GrPaint.h"
 #include "GrPipeline.h"
 #include "GrProcOptInfo.h"
 #include "GrXferProcessor.h"
 #include "batches/GrBatch.h"
 #include "effects/GrPorterDuffXferProcessor.h"
 
 GrPipelineBuilder::GrPipelineBuilder()
     : fFlags(0x0), fDrawFace(kBoth_DrawFace) {
     SkDEBUGCODE(fBlockEffectRemovalCnt = 0;)
 }
 
-GrPipelineBuilder::GrPipelineBuilder(const GrPaint& paint, GrRenderTarget* rt, const GrClip& clip) {
+GrPipelineBuilder::GrPipelineBuilder(const GrPaint& paint, GrRenderTarget* rt, const GrClip& clip,
+                                     bool requireHWAA) {
+    SkASSERT(!requireHWAA || (rt->isStencilBufferMultisampled() && paint.isAntiAlias()));
     SkDEBUGCODE(fBlockEffectRemovalCnt = 0;)
 
     for (int i = 0; i < paint.numColorFragmentProcessors(); ++i) {
         fColorFragmentProcessors.push_back(SkRef(paint.getColorFragmentProcessor(i)));
     }
 
     for (int i = 0; i < paint.numCoverageFragmentProcessors(); ++i) {
         fCoverageFragmentProcessors.push_back(SkRef(paint.getCoverageFragmentProcessor(i)));
     }
 
     fXPFactory.reset(SkSafeRef(paint.getXPFactory()));
 
     this->setRenderTarget(rt);
 
     // These have no equivalent in GrPaint, set them to defaults
     fDrawFace = kBoth_DrawFace;
     fStencilSettings.setDisabled();
     fFlags = 0;
 
     fClip = clip;
 
     this->setState(GrPipelineBuilder::kHWAntialias_Flag,
-                   rt->isUnifiedMultisampled() && paint.isAntiAlias());
+                   requireHWAA || (rt->isUnifiedMultisampled() && paint.isAntiAlias()));
     this->setState(GrPipelineBuilder::kDisableOutputConversionToSRGB_Flag,
                    paint.getDisableOutputConversionToSRGB());
     this->setState(GrPipelineBuilder::kAllowSRGBInputs_Flag,
                    paint.getAllowSRGBInputs());
 }
 
 //////////////////////////////////////////////////////////////////////////////s
 
 bool GrPipelineBuilder::willXPNeedDstTexture(const GrCaps& caps,
                                              const GrPipelineOptimizations& optimizations) const {
@@ skipping 35 matching lines @@
 
 GrPipelineBuilder::~GrPipelineBuilder() {
     SkASSERT(0 == fBlockEffectRemovalCnt);
     for (int i = 0; i < fColorFragmentProcessors.count(); ++i) {
         fColorFragmentProcessors[i]->unref();
     }
     for (int i = 0; i < fCoverageFragmentProcessors.count(); ++i) {
         fCoverageFragmentProcessors[i]->unref();
     }
 }