1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #include "Benchmark.h"
9 #include "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkColorPriv.h"
12 #include "SkPaint.h"
13 #include "SkPath.h"
14 #include "SkRandom.h"
15 #include "SkShader.h"
16 #include "SkString.h"
17
rand_pts(SkRandom & rand,SkPoint pts[4])18 static int rand_pts(SkRandom& rand, SkPoint pts[4]) {
19 int n = rand.nextU() & 3;
20 n += 1;
21
22 for (int i = 0; i < n; ++i) {
23 pts[i].fX = rand.nextSScalar1();
24 pts[i].fY = rand.nextSScalar1();
25 }
26 return n;
27 }
28
29 class PathIterBench : public Benchmark {
30 SkString fName;
31 SkPath fPath;
32 bool fRaw;
33
34 public:
PathIterBench(bool raw)35 PathIterBench(bool raw) {
36 fName.printf("pathiter_%s", raw ? "raw" : "consume");
37 fRaw = raw;
38
39 SkRandom rand;
40 for (int i = 0; i < 1000; ++i) {
41 SkPoint pts[4];
42 int n = rand_pts(rand, pts);
43 switch (n) {
44 case 1:
45 fPath.moveTo(pts[0]);
46 break;
47 case 2:
48 fPath.lineTo(pts[1]);
49 break;
50 case 3:
51 fPath.quadTo(pts[1], pts[2]);
52 break;
53 case 4:
54 fPath.cubicTo(pts[1], pts[2], pts[3]);
55 break;
56 }
57 }
58 }
59
isSuitableFor(Backend backend)60 bool isSuitableFor(Backend backend) override {
61 return backend == kNonRendering_Backend;
62 }
63
64 protected:
onGetName()65 const char* onGetName() override {
66 return fName.c_str();
67 }
68
onDraw(int loops,SkCanvas *)69 void onDraw(int loops, SkCanvas*) override {
70 if (fRaw) {
71 for (int i = 0; i < loops; ++i) {
72 SkPath::RawIter iter(fPath);
73 SkPath::Verb verb;
74 SkPoint pts[4];
75
76 while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { }
77 }
78 } else {
79 for (int i = 0; i < loops; ++i) {
80 SkPath::Iter iter(fPath, false);
81 SkPath::Verb verb;
82 SkPoint pts[4];
83
84 while ((verb = iter.next(pts)) != SkPath::kDone_Verb) { }
85 }
86 }
87 }
88
89 private:
90 typedef Benchmark INHERITED;
91 };
92
93 ///////////////////////////////////////////////////////////////////////////////
94
95 DEF_BENCH( return new PathIterBench(false); )
96 DEF_BENCH( return new PathIterBench(true); )
97