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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SkImagePriv.h"
      9 #include "SkCanvas.h"
     10 #include "SkPicture.h"
     11 
     12 SkImage* SkNewImageFromBitmap(const SkBitmap& bm, bool canSharePixelRef) {
     13     const SkImageInfo info = bm.info();
     14     if (kUnknown_SkColorType == info.colorType()) {
     15         return NULL;
     16     }
     17 
     18     SkImage* image = NULL;
     19     if (canSharePixelRef || bm.isImmutable()) {
     20         image = SkNewImageFromPixelRef(info, bm.pixelRef(), bm.rowBytes());
     21     } else {
     22         bm.lockPixels();
     23         if (bm.getPixels()) {
     24             image = SkImage::NewRasterCopy(info, bm.getPixels(), bm.rowBytes());
     25         }
     26         bm.unlockPixels();
     27     }
     28     return image;
     29 }
     30