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