1 /*
2  * Copyright 2017 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 
10 #if SK_SUPPORT_GPU
11 
12 #include "GrPathUtils.h"
13 #include "SkGeometry.h"
14 
15 class CubicKLMBench : public Benchmark {
16 public:
CubicKLMBench(SkScalar x0,SkScalar y0,SkScalar x1,SkScalar y1,SkScalar x2,SkScalar y2,SkScalar x3,SkScalar y3)17     CubicKLMBench(SkScalar x0, SkScalar y0, SkScalar x1, SkScalar y1,
18                   SkScalar x2, SkScalar y2, SkScalar x3, SkScalar y3)  {
19         fPoints[0].set(x0, y0);
20         fPoints[1].set(x1, y1);
21         fPoints[2].set(x2, y2);
22         fPoints[3].set(x3, y3);
23 
24         fName = "cubic_klm_";
25         SkScalar d[3];
26         switch (SkClassifyCubic(fPoints, d)) {
27             case kSerpentine_SkCubicType:
28                 fName.append("serp");
29                 break;
30             case kLoop_SkCubicType:
31                 fName.append("loop");
32                 break;
33             default:
34                 SkFAIL("Unexpected cubic type");
35                 break;
36         }
37     }
38 
isSuitableFor(Backend backend)39     bool isSuitableFor(Backend backend) override {
40         return backend == kNonRendering_Backend;
41     }
42 
onGetName()43     const char* onGetName() override {
44         return fName.c_str();
45     }
46 
onDraw(int loops,SkCanvas *)47     void onDraw(int loops, SkCanvas*) override {
48         SkPoint dst[10];
49         SkMatrix klm;
50         int loopIdx;
51         for (int i = 0; i < loops * 50000; ++i) {
52             GrPathUtils::chopCubicAtLoopIntersection(fPoints, dst, &klm, &loopIdx);
53         }
54     }
55 
56 private:
57     SkPoint     fPoints[4];
58     SkString    fName;
59 
60     typedef Benchmark INHERITED;
61 };
62 
63 DEF_BENCH( return new CubicKLMBench(285.625f, 499.687f, 411.625f, 808.188f,
64                                     1064.62f, 135.688f, 1042.63f, 585.187f); )
65 DEF_BENCH( return new CubicKLMBench(635.625f, 614.687f, 171.625f, 236.188f,
66                                     1064.62f, 135.688f, 516.625f, 570.187f); )
67 
68 #endif
69