"NULL !=" = NULL

src/core/SkBitmap_scroll.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 "SkBitmap.h"
 #include "SkRegion.h"
 
 bool SkBitmap::scrollRect(const SkIRect* subset, int dx, int dy,
                           SkRegion* inval) const
 {
     if (this->isImmutable() || kUnknown_SkColorType == this->colorType()) {
         return false;
     }
 
-    if (NULL != subset) {
+    if (subset) {
         SkBitmap tmp;
 
         return  this->extractSubset(&tmp, *subset) &&
                 // now call again with no rectangle
                 tmp.scrollRect(NULL, dx, dy, inval);
     }
 
     int shift = this->bytesPerPixel() >> 1;
     int width = this->width();
     int height = this->height();
 
     // check if there's nothing to do
     if ((dx | dy) == 0 || width <= 0 || height <= 0) {
-        if (NULL != inval) {
+        if (inval) {
             inval->setEmpty();
         }
         return true;
     }
 
     // compute the inval region now, before we see if there are any pixels
-    if (NULL != inval) {
+    if (inval) {
         SkIRect r;
 
         r.set(0, 0, width, height);
         // initial the region with the entire bounds
         inval->setRect(r);
         // do the "scroll"
         r.offset(dx, dy);
 
         // check if we scrolled completely away
         if (!SkIRect::Intersects(r, inval->getBounds())) {
@@ skipping 46 matching lines @@
     width <<= shift;    // now width is the number of bytes to move per line
     while (--height >= 0) {
         memmove(dst, src, width);
         dst += rowBytes;
         src += rowBytes;
     }
 
     this->notifyPixelsChanged();
     return true;
 }