Tweak distance field path renderer behavior in gamma-correct mode

src/gpu/GrDrawTarget.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrDrawTarget_DEFINED
 #define GrDrawTarget_DEFINED
 
@@ skipping 156 matching lines @@
         GrResourceProvider* resourceProvider() const { return fDrawTarget->fResourceProvider; }
         GrDrawTarget* fDrawTarget;
         friend class GrClipMaskManager;
     };
 
     const CMMAccess cmmAccess() { return CMMAccess(this); }
 
     GrAuditTrail* getAuditTrail() const { return fAuditTrail; }
 
 private:
+    friend class GrAADistanceFieldPathRenderer; // for fRenderTarget (to query sRGB)

[jvanverth1, 2016/04/13 13:45:39]

This seems a little squirrely to me. Does it make sense to add an accessor
function that returns fRenderTarget->config() instead?

[Brian Osman, 2016/04/13 13:48:44]

Yes - I nearly added a comment before sending this out, because I didn't really
like this.

     friend class GrDrawingManager; // for resetFlag & TopoSortTraits
 
     enum Flags {
         kClosed_Flag    = 0x01,   //!< This drawTarget can't accept any more batches
 
         kWasOutput_Flag = 0x02,   //!< Flag for topological sorting
         kTempMark_Flag  = 0x04,   //!< Flag for topological sorting
     };
 
     void setFlag(uint32_t flag) {
@@ skipping 72 matching lines @@
     GrRenderTarget*                             fRenderTarget;
 
     bool                                        fDrawBatchBounds;
     int                                         fMaxBatchLookback;
     int                                         fMaxBatchLookahead;
 
     typedef SkRefCnt INHERITED;
 };
 
 #endif