demo tweaks, scale up perlin, add call to flush for fps

samplecode/PerlinPatch.cpp

 /*
  * Copyright 2015 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 "SkAnimTimer.h"
 #include "SkCanvas.h"
@@ skipping 57 matching lines @@
     SkScalar fYFreq;
     SkScalar fSeed;
     SkPoint  fPts[SkPatchUtils::kNumCtrlPts];
     SkScalar fTexX;
     SkScalar fTexY;
     SkScalar fTexScale;
     SkMatrix fInvMatrix;
 public:
     PerlinPatchView() : fXFreq(0.025f), fYFreq(0.025f), fSeed(0.0f),
                         fTexX(100.0), fTexY(50.0), fTexScale(1.0f) {
+        const SkScalar s = 2;
         // The order of the colors and points is clockwise starting at upper-left corner.
         //top points
-        fPts[0].set(100, 100);
-        fPts[1].set(150, 50);
-        fPts[2].set(250, 150);
-        fPts[3].set(300, 100);
+        fPts[0].set(100 * s, 100 * s);
+        fPts[1].set(150 * s, 50 * s);
+        fPts[2].set(250 * s, 150 * s);
+        fPts[3].set(300 * s, 100 * s);
         //right points
-        fPts[4].set(275, 150);
-        fPts[5].set(350, 250);
+        fPts[4].set(275 * s, 150 * s);
+        fPts[5].set(350 * s, 250 * s);
         //bottom points
-        fPts[6].set(300, 300);
-        fPts[7].set(250, 250);
+        fPts[6].set(300 * s, 300 * s);
+        fPts[7].set(250 * s, 250 * s);
         //left points
-        fPts[8].set(150, 350);
-        fPts[9].set(100, 300);
-        fPts[10].set(50, 250);
-        fPts[11].set(150, 150);
+        fPts[8].set(150 * s, 350 * s);
+        fPts[9].set(100 * s, 300 * s);
+        fPts[10].set(50 * s, 250 * s);
+        fPts[11].set(150 * s, 150 * s);
 
         const SkColor colors[SkPatchUtils::kNumCorners] = {
             0xFF5555FF, 0xFF8888FF, 0xFFCCCCFF
         };
         const SkPoint points[2] = { SkPoint::Make(0.0f, 0.0f),
                                     SkPoint::Make(100.0f, 100.0f) };
         fShader0 = SkGradientShader::CreateLinear(points,
                                                   colors,
                                                   NULL,
                                                   3,
@@ skipping 98 matching lines @@
         this->inval(nullptr);
         return true;
     }
 
 private:
     typedef SampleView INHERITED;
 };
 
 DEF_SAMPLE( return new PerlinPatchView(); )