add peekPixels to SkCanvas and SkSurface

samplecode/SampleCircle.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 "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
@@ skipping 53 matching lines @@
         for (int width = -1; width <= 1; width++) {
             canvas->save();
             circle(canvas, width, false);
             canvas->translate(0, dy);
             circle(canvas, width, true);
             canvas->restore();
             canvas->translate(dx, 0);
         }
     }
 
-    static void blowup(SkCanvas* canvas, const SkIRect& src, const SkRect& dst) {
-        SkBaseDevice* device = canvas->getDevice();
-        const SkBitmap& bm = device->accessBitmap(false);
-        canvas->drawBitmapRect(bm, &src, dst, NULL);
-    }
-
     static void make_poly(SkPath* path, int n) {
         if (n <= 0) {
             return;
         }
         path->incReserve(n + 1);
         path->moveTo(SK_Scalar1, 0);
         SkScalar step = SK_ScalarPI * 2 / n;
         SkScalar angle = 0;
         for (int i = 1; i < n; i++) {
             angle += step;
@@ skipping 34 matching lines @@
 };
 
 const SkScalar CircleView::ANIM_DX(SK_Scalar1 / 67);
 const SkScalar CircleView::ANIM_DY(SK_Scalar1 / 29);
 const SkScalar CircleView::ANIM_RAD(SK_Scalar1 / 19);
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new CircleView; }
 static SkViewRegister reg(MyFactory);