Add can-ignore-rect hint to clear call

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 443 matching lines @@
 
     GrDrawState* drawState = fGpu->drawState();
 
     // We're drawing a coverage mask and want coverage to be run through the blend function.
     drawState->enableState(GrDrawState::kCoverageDrawing_StateBit);
 
     // The scratch texture that we are drawing into can be substantially larger than the mask. Only
     // clear the part that we care about.
     fGpu->clear(&maskSpaceIBounds,
                 kAllIn_InitialState == initialState ? 0xffffffff : 0x00000000,
+                true,
                 result->asRenderTarget());
 
     // When we use the stencil in the below loop it is important to have this clip installed.
     // The second pass that zeros the stencil buffer renders the rect maskSpaceIBounds so the first
     // pass must not set values outside of this bounds or stencil values outside the rect won't be
     // cleared.
     GrDrawTarget::AutoClipRestore acr(fGpu, maskSpaceIBounds);
     drawState->enableState(GrDrawState::kClip_StateBit);
 
     GrAutoScratchTexture temp;
@@ skipping 24 matching lines @@
 
                 this->getTemp(maskSpaceIBounds.fRight, maskSpaceIBounds.fBottom, &temp);
                 if (NULL == temp.texture()) {
                     fAACache.reset();
                     return NULL;
                 }
                 dst = temp.texture();
                 // clear the temp target and set blend to replace
                 fGpu->clear(&maskSpaceElementIBounds,
                             invert ? 0xffffffff : 0x00000000,
+                            true,
                             dst->asRenderTarget());
                 setup_boolean_blendcoeffs(drawState, SkRegion::kReplace_Op);
 
             } else {
                 // draw directly into the result with the stencil set to make the pixels affected
                 // by the clip shape be non-zero.
                 dst = result;
                 GR_STATIC_CONST_SAME_STENCIL(kStencilInElement,
                                              kReplace_StencilOp,
                                              kReplace_StencilOp,
@@ skipping 513 matching lines @@
 
     // TODO: dynamically attach a stencil buffer
     int stencilBits = 0;
     GrStencilBuffer* stencilBuffer =
         drawState.getRenderTarget()->getStencilBuffer();
     if (NULL != stencilBuffer) {
         stencilBits = stencilBuffer->bits();
         this->adjustStencilParams(settings, clipMode, stencilBits);
     }
 }