1 /*
2  * Copyright 2015 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "Benchmark.h"
9 #include "SkPaint.h"
10 #include "SkPath.h"
11 #include "SkRandom.h"
12 #include "SkString.h"
13 
14 class StrokeBench : public Benchmark {
15 public:
16     StrokeBench(const SkPath& path, const SkPaint& paint, const char pathType[], SkScalar res)
17         : fPath(path), fPaint(paint), fRes(res)
18     {
19         fName.printf("build_stroke_%s_%g_%d_%d",
20                      pathType, paint.getStrokeWidth(), paint.getStrokeJoin(), paint.getStrokeCap());
21     }
22 
23 protected:
24     bool isSuitableFor(Backend backend) override {
25         return backend == kNonRendering_Backend;
26     }
27 
28     const char* onGetName() override { return fName.c_str(); }
29 
30     void onDraw(int loops, SkCanvas* canvas) override {
31         SkPaint paint(fPaint);
32         this->setupPaint(&paint);
33 
34         for (int outer = 0; outer < 10; ++outer) {
35             for (int i = 0; i < loops; ++i) {
36                 SkPath result;
37                 paint.getFillPath(fPath, &result, nullptr, fRes);
38             }
39         }
40     }
41 
42 private:
43     SkPath      fPath;
44     SkPaint     fPaint;
45     SkString    fName;
46     SkScalar    fRes;
47     typedef Benchmark INHERITED;
48 };
49 
50 ///////////////////////////////////////////////////////////////////////////////
51 
52 static const int N = 100;
53 static const SkScalar X = 100;
54 static const SkScalar Y = 100;
55 
56 static SkPoint rand_pt(SkRandom& rand) {
57     return SkPoint::Make(rand.nextSScalar1() * X, rand.nextSScalar1() * Y);
58 }
59 
60 static SkPath line_path_maker() {
61     SkPath path;
62     SkRandom rand;
63     path.moveTo(rand_pt(rand));
64     for (int i = 0; i < N; ++i) {
65         path.lineTo(rand_pt(rand));
66     }
67     return path;
68 }
69 static SkPath quad_path_maker() {
70     SkPath path;
71     SkRandom rand;
72     path.moveTo(rand_pt(rand));
73     for (int i = 0; i < N; ++i) {
74         path.quadTo(rand_pt(rand), rand_pt(rand));
75     }
76     return path;
77 }
78 static SkPath conic_path_maker() {
79     SkPath path;
80     SkRandom rand;
81     path.moveTo(rand_pt(rand));
82     for (int i = 0; i < N; ++i) {
83         path.conicTo(rand_pt(rand), rand_pt(rand), rand.nextUScalar1());
84     }
85     return path;
86 }
87 static SkPath cubic_path_maker() {
88     SkPath path;
89     SkRandom rand;
90     path.moveTo(rand_pt(rand));
91     for (int i = 0; i < N; ++i) {
92         path.cubicTo(rand_pt(rand), rand_pt(rand), rand_pt(rand));
93     }
94     return path;
95 }
96 
97 static SkPaint paint_maker() {
98     SkPaint paint;
99     paint.setStyle(SkPaint::kStroke_Style);
100     paint.setStrokeWidth(X / 10);
101     paint.setStrokeJoin(SkPaint::kMiter_Join);
102     paint.setStrokeCap(SkPaint::kSquare_Cap);
103     return paint;
104 }
105 
106 DEF_BENCH(return new StrokeBench(line_path_maker(), paint_maker(), "line_1", 1);)
107 DEF_BENCH(return new StrokeBench(quad_path_maker(), paint_maker(), "quad_1", 1);)
108 DEF_BENCH(return new StrokeBench(conic_path_maker(), paint_maker(), "conic_1", 1);)
109 DEF_BENCH(return new StrokeBench(cubic_path_maker(), paint_maker(), "cubic_1", 1);)
110 
111 DEF_BENCH(return new StrokeBench(line_path_maker(), paint_maker(), "line_4", 4);)
112 DEF_BENCH(return new StrokeBench(quad_path_maker(), paint_maker(), "quad_4", 4);)
113 DEF_BENCH(return new StrokeBench(conic_path_maker(), paint_maker(), "conic_4", 4);)
114 DEF_BENCH(return new StrokeBench(cubic_path_maker(), paint_maker(), "cubic_4", 4);)
115 
116 DEF_BENCH(return new StrokeBench(line_path_maker(), paint_maker(), "line_.25", .25f);)
117 DEF_BENCH(return new StrokeBench(quad_path_maker(), paint_maker(), "quad_.25", .25f);)
118 DEF_BENCH(return new StrokeBench(conic_path_maker(), paint_maker(), "conic_.25", .25f);)
119 DEF_BENCH(return new StrokeBench(cubic_path_maker(), paint_maker(), "cubic_.25", .25f);)
120