fix for use of uninit variable

src/gpu/GrDistanceFieldTextContext.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrDistanceFieldTextContext.h"
 #include "GrAtlas.h"
 #include "GrBitmapTextContext.h"
@@ skipping 617 matching lines @@
         drawState->setVertexAttribs<gTextVertexAttribs>(
                                     SK_ARRAY_COUNT(gTextVertexAttribs), kTextVASize);
     }
 }
 
 void GrDistanceFieldTextContext::flush() {
     if (NULL == fDrawTarget) {
         return;
     }
 
-    GrDrawState drawState;
-    drawState.setFromPaint(fPaint, fContext->getMatrix(), fContext->getRenderTarget());
-    bool useColorVerts = !fUseLCDText;
-    set_vertex_attributes(&drawState, useColorVerts);
+    if (fCurrVertex > 0) {
+        GrDrawState drawState;
+        drawState.setFromPaint(fPaint, fContext->getMatrix(), fContext->getRenderTarget());

[tfarina, 2014/11/18 17:35:31]

is fContext NULL if fCurrVertex is < 0?

Otherwise, which variable is being used uninitialized?

+        bool useColorVerts = !fUseLCDText;
+        set_vertex_attributes(&drawState, useColorVerts);
 
-    if (fCurrVertex > 0) {
         // setup our sampler state for our text texture/atlas
         SkASSERT(SkIsAlign4(fCurrVertex));
 
         // get our current color
         SkColor filteredColor;
         SkColorFilter* colorFilter = fSkPaint.getColorFilter();
         if (colorFilter) {
             filteredColor = colorFilter->filterColor(fSkPaint.getColor());
         } else {
             filteredColor = fSkPaint.getColor();
@@ skipping 48 matching lines @@
     }
 }
 
 inline void GrDistanceFieldTextContext::finish() {
     this->flush();
     fTotalVertexCount = 0;
 
     GrTextContext::finish();
 }