Implement path cover with nv_path_rendering

src/gpu/GrClipMaskManager.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 "GrClipMaskManager.h"
 #include "GrAAConvexPathRenderer.h"
@@ skipping 791 matching lines @@
         SkASSERT(!drawState.isStateFlagEnabled(
                     GrGpu::kModifyStencilClip_StateBit));
     } else if (drawState.isStateFlagEnabled(
                     GrGpu::kModifyStencilClip_StateBit)) {
         clipMode = GrClipMaskManager::kModifyClip_StencilClipMode;
     } else {
         clipMode = GrClipMaskManager::kIgnoreClip_StencilClipMode;
     }
 
     GrStencilSettings settings;
+
+    // TODO: dynamically attach a stencil buffer
+    int stencilBits = 0;
+    GrStencilBuffer* stencilBuffer =
+        drawState.getRenderTarget()->getStencilBuffer();
+    if (NULL != stencilBuffer) {
+        stencilBits = stencilBuffer->bits();
+        if (fGpu->caps()->pathRenderingSupport()) {
+            settings = fGpu->getPathStencilSettingsForFillType(drawState.getPathStencilFillType());
+            this->adjustStencilParams(&settings, clipMode, stencilBits);
+            fGpu->setPathStencilSettings(settings);
+        }
+    }
+
     // The GrGpu client may not be using the stencil buffer but we may need to
     // enable it in order to respect a stencil clip.
     if (drawState.getStencil().isDisabled()) {
         if (GrClipMaskManager::kRespectClip_StencilClipMode == clipMode) {
             settings = basic_apply_stencil_clip_settings();
         } else {
             fGpu->disableStencil();
             return;
         }
     } else {
         settings = drawState.getStencil();
     }
 
-    // TODO: dynamically attach a stencil buffer
-    int stencilBits = 0;
-    GrStencilBuffer* stencilBuffer =
-        drawState.getRenderTarget()->getStencilBuffer();
-    if (NULL != stencilBuffer) {
-        stencilBits = stencilBuffer->bits();
-    }
-
     SkASSERT(fGpu->caps()->stencilWrapOpsSupport() || !settings.usesWrapOp());
     SkASSERT(fGpu->caps()->twoSidedStencilSupport() || !settings.isTwoSided());
     this->adjustStencilParams(&settings, clipMode, stencilBits);
     fGpu->setStencilSettings(settings);
 }
 
 void GrClipMaskManager::adjustStencilParams(GrStencilSettings* settings,
                                             StencilClipMode mode,
                                             int stencilBitCnt) {
     SkASSERT(stencilBitCnt > 0);
@@ skipping 162 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 void GrClipMaskManager::releaseResources() {
     fAACache.releaseResources();
 }
 
 void GrClipMaskManager::setGpu(GrGpu* gpu) {
     fGpu = gpu;
     fAACache.setContext(gpu->getContext());
 }