Add high resolution WallTimer to SampleApp

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 1293 matching lines @@
     } else if (kDeferred_DeviceType == fDeviceType) {
         SkAutoTUnref<SkImage> image(fDeferredCanvas->newImageSnapshot());
         if (image) {
             orig->drawImage(image, 0, 0, NULL);
         }
         fDeferredCanvas.reset(NULL);
         fDeferredSurface.reset(NULL);
     }
 
     // Do this after presentGL and other finishing, rather than in afterChild
-    if (fMeasureFPS && fMeasureFPS_StartTime) {
-        fMeasureFPS_Time += SkTime::GetMSecs() - fMeasureFPS_StartTime;
+    if (fMeasureFPS) {
+        fTimer.end();
+        fMeasureFPS_Time += fTimer.fWall;
     }
 }
 
 void SampleWindow::beforeChild(SkView* child, SkCanvas* canvas) {
     if (fRotate) {
         SkScalar cx = this->width() / 2;
         SkScalar cy = this->height() / 2;
         canvas->translate(cx, cy);
         canvas->rotate(gAnimTimer.scaled(10));
         canvas->translate(-cx, -cy);
@@ skipping 16 matching lines @@
         m.setPerspY(t);
 #else
         m.setPerspY(SK_Scalar1 / 1000);
         m.setSkewX(8.0f / 25);
         m.dump();
 #endif
         canvas->concat(m);
     }
 
     if (fMeasureFPS) {
-        if (SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT)) {
-            fMeasureFPS_StartTime = SkTime::GetMSecs();
-        }
+        (void)SampleView::SetRepeatDraw(child, FPS_REPEAT_COUNT);
+        fTimer.start();
     } else {
         (void)SampleView::SetRepeatDraw(child, 1);
     }
     if (fPerspAnim || fRotate) {
         this->inval(NULL);
     }
 }
 
 void SampleWindow::changeZoomLevel(float delta) {
     fZoomLevel += delta;
@@ skipping 561 matching lines @@
     title.prepend(trystate_str(fSubpixelState, "S ", "s "));
     title.prepend(fFlipAxis & kFlipAxis_X ? "X " : NULL);
     title.prepend(fFlipAxis & kFlipAxis_Y ? "Y " : NULL);
     title.prepend(gHintingStates[fHintingState].label);
 
     if (fZoomLevel) {
         title.prependf("{%.2f} ", SkScalarToFloat(fZoomLevel));
     }
 
     if (fMeasureFPS) {
-        title.appendf(" %8.3f ms", fMeasureFPS_Time / (float)FPS_REPEAT_COUNT);
+        title.appendf(" %8.4f ms", fMeasureFPS_Time / (float)FPS_REPEAT_COUNT);
     }
 
     SkView* view = curr_view(this);
     if (SampleView::IsSampleView(view)) {
         switch (fPipeState) {
             case SkOSMenu::kOnState:
                 title.prepend("<Pipe> ");
                 break;
             case SkOSMenu::kMixedState:
                 title.prepend("<Tiled Pipe> ");
@@ skipping 355 matching lines @@
     setenv("ANDROID_ROOT", "/android/device/data", 0);
 #endif
     SkGraphics::Init();
     SkEvent::Init();
 }
 
 void application_term() {
     SkEvent::Term();
     SkGraphics::Term();
 }