Improve handling of FF vertex array state

src/gpu/gl/GrGpuGL.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGpuGL_DEFINED
 #define GrGpuGL_DEFINED
 
@@ skipping 284 matching lines @@
     public:
         HWGeometryState() { fVBOVertexArray = NULL; this->invalidate(); }
 
         ~HWGeometryState() { SkSafeUnref(fVBOVertexArray); }
 
         void invalidate() {
             fBoundVertexArrayIDIsValid = false;
             fBoundVertexBufferIDIsValid = false;
             fDefaultVertexArrayBoundIndexBufferID = false;
             fDefaultVertexArrayBoundIndexBufferIDIsValid = false;
             fDefaultVertexArrayAttribState.invalidate();

[robertphillips, 2013/09/09 13:53:33]

NULL !=?

[bsalomon, 2013/09/09 14:11:44]

Done.

+            if (fVBOVertexArray) {
+                fVBOVertexArray->invalidateCachedState();
+            }
         }
 
         void notifyVertexArrayDelete(GrGLuint id) {
             if (fBoundVertexArrayIDIsValid && fBoundVertexArrayID == id) {
                 // Does implicit bind to 0
                 fBoundVertexArrayID = 0;
             }
         }
 
         void setVertexArrayID(GrGpuGL* gpu, GrGLuint arrayID) {
@@ skipping 115 matching lines @@
     ///@}
 
     // we record what stencil format worked last time to hopefully exit early
     // from our loop that tries stencil formats and calls check fb status.
     int fLastSuccessfulStencilFmtIdx;
 
     typedef GrGpu INHERITED;
 };
 
 #endif