Separate user and raw stencil settings

src/gpu/GrPipeline.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 "GrPipeline.h"
 
 #include "GrCaps.h"
 #include "GrDrawTarget.h"
 #include "GrGpu.h"
 #include "GrPipelineBuilder.h"
 #include "GrProcOptInfo.h"
 #include "GrXferProcessor.h"
 
 #include "batches/GrBatch.h"
 
 GrPipeline* GrPipeline::CreateAt(void* memory, const CreateArgs& args,
                                  GrXPOverridesForBatch* overrides) {
     const GrPipelineBuilder& builder = *args.fPipelineBuilder;
 
+    GrPipeline* pipeline = new (memory) GrPipeline;
+    pipeline->fRenderTarget.reset(builder.fRenderTarget.get());
+    SkASSERT(pipeline->fRenderTarget);
+    pipeline->fScissorState = *args.fScissor;
+    if (builder.hasUserStencilSettings() || args.fHasStencilClip) {
+        SkASSERT(args.fNumStencilBits);
+        pipeline->fStencilSettings.reset(*builder.getUserStencil(), args.fHasStencilClip,
+                                         args.fNumStencilBits);
+        SkASSERT(!pipeline->fStencilSettings.usesWrapOp() || args.fCaps->stencilWrapOpsSupport());
+    }
+    pipeline->fDrawFace = builder.getDrawFace();
+
+    pipeline->fFlags = 0;
+    if (builder.isHWAntialias()) {
+        pipeline->fFlags |= kHWAA_Flag;
+    }
+    if (builder.snapVerticesToPixelCenters()) {
+        pipeline->fFlags |= kSnapVertices_Flag;
+    }
+    if (builder.getDisableOutputConversionToSRGB()) {
+        pipeline->fFlags |= kDisableOutputConversionToSRGB_Flag;
+    }
+    if (builder.getAllowSRGBInputs()) {
+        pipeline->fFlags |= kAllowSRGBInputs_Flag;
+    }
+
     // Create XferProcessor from DS's XPFactory
     bool hasMixedSamples = builder.getRenderTarget()->hasMixedSamples() &&
-                           (builder.isHWAntialias() || !builder.getStencil().isDisabled());
+                           (builder.isHWAntialias() || !pipeline->fStencilSettings.isDisabled());
     const GrXPFactory* xpFactory = builder.getXPFactory();
     SkAutoTUnref<GrXferProcessor> xferProcessor;
     if (xpFactory) {
         xferProcessor.reset(xpFactory->createXferProcessor(args.fOpts,
                                                            hasMixedSamples,
                                                            &args.fDstTexture,
                                                            *args.fCaps));
         if (!xferProcessor) {
+            pipeline->~GrPipeline();
             return nullptr;
         }
     } else {
         // This may return nullptr in the common case of src-over implemented using hw blending.
         xferProcessor.reset(GrPorterDuffXPFactory::CreateSrcOverXferProcessor(
                                                                         *args.fCaps,
                                                                         args.fOpts,
                                                                         hasMixedSamples,
                                                                         &args.fDstTexture));
     }
     GrColor overrideColor = GrColor_ILLEGAL;
     if (args.fOpts.fColorPOI.firstEffectiveProcessorIndex() != 0) {
         overrideColor = args.fOpts.fColorPOI.inputColorToFirstEffectiveProccesor();
     }
 
     GrXferProcessor::OptFlags optFlags = GrXferProcessor::kNone_OptFlags;
 
     const GrXferProcessor* xpForOpts = xferProcessor ? xferProcessor.get() :
                                                        &GrPorterDuffXPFactory::SimpleSrcOverXP();
     optFlags = xpForOpts->getOptimizations(args.fOpts,
-                                           builder.getStencil().doesWrite(),
+                                           pipeline->fStencilSettings.doesWrite(),
                                            &overrideColor,
                                            *args.fCaps);
 
     // When path rendering the stencil settings are not always set on the GrPipelineBuilder
     // so we must check the draw type. In cases where we will skip drawing we simply return a
     // null GrPipeline.
     if (GrXferProcessor::kSkipDraw_OptFlag & optFlags) {
+        pipeline->~GrPipeline();
         return nullptr;
     }
 
     // No need to have an override color if it isn't even going to be used.
     if (SkToBool(GrXferProcessor::kIgnoreColor_OptFlag & optFlags)) {
         overrideColor = GrColor_ILLEGAL;
     }
 
-    GrPipeline* pipeline = new (memory) GrPipeline;
     pipeline->fXferProcessor.reset(xferProcessor);
 
-    pipeline->fRenderTarget.reset(builder.fRenderTarget.get());
-    SkASSERT(pipeline->fRenderTarget);
-    pipeline->fScissorState = *args.fScissor;
-    pipeline->fStencilSettings = builder.getStencil();
-    pipeline->fDrawFace = builder.getDrawFace();
-
-    pipeline->fFlags = 0;
-    if (builder.isHWAntialias()) {
-        pipeline->fFlags |= kHWAA_Flag;
-    }
-    if (builder.snapVerticesToPixelCenters()) {
-        pipeline->fFlags |= kSnapVertices_Flag;
-    }
-    if (builder.getDisableOutputConversionToSRGB()) {
-        pipeline->fFlags |= kDisableOutputConversionToSRGB_Flag;
-    }
-    if (builder.getAllowSRGBInputs()) {
-        pipeline->fFlags |= kAllowSRGBInputs_Flag;
-    }
-
     int firstColorProcessorIdx = args.fOpts.fColorPOI.firstEffectiveProcessorIndex();
 
     // TODO: Once we can handle single or four channel input into coverage GrFragmentProcessors
     // then we can use GrPipelineBuilder's coverageProcInfo (like color above) to set this initial
     // information.
     int firstCoverageProcessorIdx = 0;
 
     pipeline->adjustProgramFromOptimizations(builder, optFlags, args.fOpts.fColorPOI,
                                              args.fOpts.fCoveragePOI, &firstColorProcessorIdx,
                                              &firstCoverageProcessorIdx);
@@ skipping 123 matching lines @@
         }
     }
 
     for (int i = 0; i < a.numFragmentProcessors(); i++) {
         if (!a.getFragmentProcessor(i).isEqual(b.getFragmentProcessor(i), ignoreCoordTransforms)) {
             return false;
         }
     }
     return true;
 }