Switch out random number generator for tests, benches, samples.

tests/MathTest.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 "Test.h"
 #include "SkFloatBits.h"
 #include "SkFloatingPoint.h"
 #include "SkMathPriv.h"
 #include "SkPoint.h"
 #include "SkRandom.h"
 #include "SkColorPriv.h"
 
 static void test_clz(skiatest::Reporter* reporter) {
     REPORTER_ASSERT(reporter, 32 == SkCLZ(0));
     REPORTER_ASSERT(reporter, 31 == SkCLZ(1));
     REPORTER_ASSERT(reporter, 1 == SkCLZ(1 << 30));
     REPORTER_ASSERT(reporter, 0 == SkCLZ(~0U));
 
-    SkRandom rand;
+    SkMWCRandom rand;
     for (int i = 0; i < 1000; ++i) {
         uint32_t mask = rand.nextU();
         // need to get some zeros for testing, but in some obscure way so the
         // compiler won't "see" that, and work-around calling the functions.
         mask >>= (mask & 31);
         int intri = SkCLZ(mask);
         int porta = SkCLZ_portable(mask);
         REPORTER_ASSERT(reporter, intri == porta);
     }
 }
@@ skipping 42 matching lines @@
 
     for (int a = 0; a <= 32767; ++a) {
         for (int b = 0; b <= 32767; ++b) {
             unsigned prod0 = SkMul16ShiftRound(a, b, 8);
             unsigned prod1 = SkMulDiv255Round(a, b);
             SkASSERT(prod0 == prod1);
         }
     }
 #endif
 
-    SkRandom rand;
+    SkMWCRandom rand;
     for (int i = 0; i < 10000; ++i) {
         unsigned a = rand.nextU() & 0x7FFF;
         unsigned b = rand.nextU() & 0x7FFF;
 
         unsigned prod0 = SkMul16ShiftRound(a, b, 8);
         unsigned prod1 = SkMulDiv255Round(a, b);
 
         REPORTER_ASSERT(reporter, prod0 == prod1);
     }
 }
@@ skipping 588 matching lines @@
     }
     for (size_t i = 0; i < SK_ARRAY_COUNT(g32); ++i) {
         REPORTER_ASSERT(reporter, g32[i].fYang == SkEndianSwap32(g32[i].fYin));
     }
     for (size_t i = 0; i < SK_ARRAY_COUNT(g64); ++i) {
         REPORTER_ASSERT(reporter, g64[i].fYang == SkEndianSwap64(g64[i].fYin));
     }
 }
 
 DEFINE_TESTCLASS("Endian", EndianTestClass, TestEndian)