GrResourceCache2 manages scratch texture.

src/core/SkBitmapProcShader.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SkColorPriv.h"
 #include "SkReadBuffer.h"
 #include "SkWriteBuffer.h"
@@ skipping 441 matching lines @@
         default:
             SkErrorInternals::SetError( kInvalidPaint_SkError,
                                         "Sorry, I don't understand the filtering "
                                         "mode you asked for.  Falling back to "
                                         "MIPMaps.");
             textureFilterMode = GrTextureParams::kMipMap_FilterMode;
             break;
 
     }
     GrTextureParams params(tm, textureFilterMode);
-    GrTexture* texture = GrLockAndRefCachedBitmapTexture(context, fRawBitmap, &params);
+    SkAutoTUnref<GrTexture> texture(GrRefCachedBitmapTexture(context, fRawBitmap, &params));
 
-    if (NULL == texture) {
+    if (!texture) {
         SkErrorInternals::SetError( kInternalError_SkError,
                                     "Couldn't convert bitmap to texture.");
         return false;
     }
     
     *paintColor = (kAlpha_8_SkColorType == fRawBitmap.colorType()) ?
                                                 SkColor2GrColor(paint.getColor()) :
                                                 SkColor2GrColorJustAlpha(paint.getColor());
 
     if (useBicubic) {
         *fp = GrBicubicEffect::Create(texture, matrix, tm);
     } else {
         *fp = GrSimpleTextureEffect::Create(texture, matrix, params);
     }
-    GrUnlockAndUnrefCachedBitmapTexture(texture);
 
     return true;
 }
 
 #else 
 
 bool SkBitmapProcShader::asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix*, GrColor*,
                                              GrFragmentProcessor**) const {
     SkDEBUGFAIL("Should not call in GPU-less build");
     return false;
 }
 
 #endif