update example

samplecode/SampleApp.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 "SampleApp.h"
 
 #include "OverView.h"
@@ skipping 297 matching lines @@
 #endif
 
         win->present();
     }
 
     virtual void windowSizeChanged(SampleWindow* win) {
 #if SK_SUPPORT_GPU
         if (fCurContext) {
             AttachmentInfo attachmentInfo;
             win->attach(fBackend, fMSAASampleCount, &attachmentInfo);
-
-            GrBackendRenderTargetDesc desc;
-            desc.fWidth = SkScalarRoundToInt(win->width());
-            desc.fHeight = SkScalarRoundToInt(win->height());
-            desc.fConfig = kSkia8888_GrPixelConfig;
-            desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
-            desc.fSampleCnt = attachmentInfo.fSampleCount;
-            desc.fStencilBits = attachmentInfo.fStencilBits;
-            GrGLint buffer;
-            GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
-            desc.fRenderTargetHandle = buffer;
-
             SkSafeUnref(fCurRenderTarget);
-            fCurRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
+            fCurRenderTarget = win->renderTarget(attachmentInfo, fCurIntf, fCurContext);
         }
 #endif
     }
 
     virtual GrContext* getGrContext() {
 #if SK_SUPPORT_GPU
         return fCurContext;
 #else
         return NULL;
 #endif
@@ skipping 2090 matching lines @@
     setenv("ANDROID_ROOT", "/android/device/data", 0);
 #endif
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 void application_term() {
     SkEvent::Term();
     SkGraphics::Term();
 }