Pass blob bounds to the looper, if available

src/core/SkCanvas.cpp

 /*
  * Copyright 2008 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkCanvasPriv.h"
 #include "SkBitmapDevice.h"
@@ skipping 2135 matching lines @@
         iter.fDevice->drawTextOnPath(iter, text, byteLength, path,
                                      matrix, looper.paint());
     }
 
     LOOPER_END
 }
 
 void SkCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
                               const SkPaint& paint) {
 
+    SkRect storage;
+    const SkRect* bounds = NULL;
     if (paint.canComputeFastBounds()) {
-        SkRect storage;
+        storage = blob->bounds().makeOffset(x, y);
+        bounds = &paint.computeFastBounds(storage, &storage);
 
-        if (this->quickReject(paint.computeFastBounds(blob->bounds().makeOffset(x, y), &storage))) {
+        if (this->quickReject(*bounds)) {
             return;
         }
     }
 
     // We cannot filter in the looper as we normally do, because the paint is
     // incomplete at this point (text-related attributes are embedded within blob run paints).
     SkDrawFilter* drawFilter = fMCRec->fFilter;
     fMCRec->fFilter = NULL;
 
-    LOOPER_BEGIN(paint, SkDrawFilter::kText_Type, NULL)
+    LOOPER_BEGIN(paint, SkDrawFilter::kText_Type, bounds)
 
     while (iter.next()) {
         SkDeviceFilteredPaint dfp(iter.fDevice, looper.paint());
         iter.fDevice->drawTextBlob(iter, blob, x, y, dfp.paint(), drawFilter);
     }
 
     LOOPER_END
 
     fMCRec->fFilter = drawFilter;
 }
@@ skipping 340 matching lines @@
     }
 
     if (matrix) {
         canvas->concat(*matrix);
     }
 }
 
 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
     fCanvas->restoreToCount(fSaveCount);
 }