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Side by Side Diff: bench/PathIterBench.cpp

Issue 23576015: Change old PRG to be SkLCGRandom; change new one to SkRandom (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: Fix some spurious SkMWCRandoms Created 7 years, 3 months ago
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1 1
2 /* 2 /*
3 * Copyright 2011 Google Inc. 3 * Copyright 2011 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 #include "SkBenchmark.h" 8 #include "SkBenchmark.h"
9 #include "SkBitmap.h" 9 #include "SkBitmap.h"
10 #include "SkCanvas.h" 10 #include "SkCanvas.h"
11 #include "SkColorPriv.h" 11 #include "SkColorPriv.h"
12 #include "SkPaint.h" 12 #include "SkPaint.h"
13 #include "SkRandom.h" 13 #include "SkRandom.h"
14 #include "SkShader.h" 14 #include "SkShader.h"
15 #include "SkString.h" 15 #include "SkString.h"
16 16
17 static int rand_pts(SkMWCRandom& rand, SkPoint pts[4]) { 17 static int rand_pts(SkRandom& rand, SkPoint pts[4]) {
18 int n = rand.nextU() & 3; 18 int n = rand.nextU() & 3;
19 n += 1; 19 n += 1;
20 20
21 for (int i = 0; i < n; ++i) { 21 for (int i = 0; i < n; ++i) {
22 pts[i].fX = rand.nextSScalar1(); 22 pts[i].fX = rand.nextSScalar1();
23 pts[i].fY = rand.nextSScalar1(); 23 pts[i].fY = rand.nextSScalar1();
24 } 24 }
25 return n; 25 return n;
26 } 26 }
27 27
28 class PathIterBench : public SkBenchmark { 28 class PathIterBench : public SkBenchmark {
29 SkString fName; 29 SkString fName;
30 SkPath fPath; 30 SkPath fPath;
31 bool fRaw; 31 bool fRaw;
32 32
33 enum { N = SkBENCHLOOP(500) }; 33 enum { N = SkBENCHLOOP(500) };
34 34
35 public: 35 public:
36 PathIterBench(void* param, bool raw) : INHERITED(param) { 36 PathIterBench(void* param, bool raw) : INHERITED(param) {
37 fName.printf("pathiter_%s", raw ? "raw" : "consume"); 37 fName.printf("pathiter_%s", raw ? "raw" : "consume");
38 fRaw = raw; 38 fRaw = raw;
39 39
40 SkMWCRandom rand; 40 SkRandom rand;
41 for (int i = 0; i < 1000; ++i) { 41 for (int i = 0; i < 1000; ++i) {
42 SkPoint pts[4]; 42 SkPoint pts[4];
43 int n = rand_pts(rand, pts); 43 int n = rand_pts(rand, pts);
44 switch (n) { 44 switch (n) {
45 case 1: 45 case 1:
46 fPath.moveTo(pts[0]); 46 fPath.moveTo(pts[0]);
47 break; 47 break;
48 case 2: 48 case 2:
49 fPath.lineTo(pts[1]); 49 fPath.lineTo(pts[1]);
50 break; 50 break;
(...skipping 38 matching lines...) Expand 10 before | Expand all | Expand 10 after
89 typedef SkBenchmark INHERITED; 89 typedef SkBenchmark INHERITED;
90 }; 90 };
91 91
92 /////////////////////////////////////////////////////////////////////////////// 92 ///////////////////////////////////////////////////////////////////////////////
93 93
94 static SkBenchmark* F0(void* p) { return new PathIterBench(p, false); } 94 static SkBenchmark* F0(void* p) { return new PathIterBench(p, false); }
95 static SkBenchmark* F1(void* p) { return new PathIterBench(p, true); } 95 static SkBenchmark* F1(void* p) { return new PathIterBench(p, true); }
96 96
97 static BenchRegistry gR0(F0); 97 static BenchRegistry gR0(F0);
98 static BenchRegistry gR1(F1); 98 static BenchRegistry gR1(F1);
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