CubicKLMBench.cpp revision 4343654bc4a93812cba168a665deef0de2ebcfdd 
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
15class CubicKLMBench : public Benchmark {
16public:
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[4];
26        switch (SkClassifyCubic(fPoints, d)) {
27            case SkCubicType::kSerpentine:
28                fName.append("serp");
29                break;
30            case SkCubicType::kLoop:
31                fName.append("loop");
32                break;
33            default:
34                SkFAIL("Unexpected cubic type");
35                break;
36        }
37    }
38
39    bool isSuitableFor(Backend backend) override {
40        return backend == kNonRendering_Backend;
41    }
42
43    const char* onGetName() override {
44        return fName.c_str();
45    }
46
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
56private:
57    SkPoint     fPoints[4];
58    SkString    fName;
59
60    typedef Benchmark INHERITED;
61};
62
63DEF_BENCH( return new CubicKLMBench(285.625f, 499.687f, 411.625f, 808.188f,
64                                    1064.62f, 135.688f, 1042.63f, 585.187f); )
65DEF_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