Change old PRG to be SkLCGRandom; change new one to SkRandom

bench/RectBench.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 "SkBenchmark.h"
 #include "SkCanvas.h"
 #include "SkPaint.h"
 #include "SkRandom.h"
 #include "SkString.h"
 #include "SkShader.h"
 
 class RectBench : public SkBenchmark {
 public:
     int fShift, fStroke;
     enum {
         W = 640,
         H = 480,
         N = SkBENCHLOOP(300)
     };
     SkRect  fRects[N];
     SkColor fColors[N];
 
     RectBench(void* param, int shift, int stroke = 0)
         : INHERITED(param)
         , fShift(shift)
         , fStroke(stroke) {
-        SkMWCRandom rand;
+        SkRandom rand;
         const SkScalar offset = SK_Scalar1/3;
         for (int i = 0; i < N; i++) {
             int x = rand.nextU() % W;
             int y = rand.nextU() % H;
             int w = rand.nextU() % W;
             int h = rand.nextU() % H;
             w >>= shift;
             h >>= shift;
             x -= w/2;
             y -= h/2;
@@ skipping 198 matching lines @@
     virtual void onDraw(SkCanvas* canvas) {
         SkScalar gSizes[] = {
             SkIntToScalar(13), SkIntToScalar(24)
         };
         size_t sizes = SK_ARRAY_COUNT(gSizes);
 
         if (this->hasStrokeWidth()) {
             gSizes[0] = this->getStrokeWidth();
             sizes = 1;
         }
-        SkMWCRandom rand;
+        SkRandom rand;
         SkColor color = 0xFF000000;
         U8CPU alpha = 0xFF;
         SkPaint paint;
         paint.setStrokeCap(SkPaint::kRound_Cap);
         if (_type == KMaskShader) {
             SkBitmap srcBM;
             srcBM.setConfig(SkBitmap::kARGB_8888_Config, 10, 1);
             srcBM.allocPixels();
             srcBM.eraseColor(0xFF00FF00);
 
@@ skipping 65 matching lines @@
                       BlitMaskBench::kMaskBlack, "maskblack")
                       ); )
 DEF_BENCH( return SkNEW_ARGS(BlitMaskBench,
                       (p, SkCanvas::kPoints_PointMode,
                       BlitMaskBench::kMaskColor, "maskcolor")
                       ); )
 DEF_BENCH( return SkNEW_ARGS(BlitMaskBench,
                      (p, SkCanvas::kPoints_PointMode,
                      BlitMaskBench::KMaskShader, "maskshader")
                      ); )