CubicKLMBench.cpp revision b4aab9ae6d27c446af8302b79d15b832c816c633 
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        switch (SkClassifyCubic(fPoints)) {
26            case SkCubicType::kSerpentine:
27                fName.append("serp");
28                break;
29            case SkCubicType::kLoop:
30                fName.append("loop");
31                break;
32            default:
33                SK_ABORT("Unexpected cubic type");
34                break;
35        }
36    }
37
38    bool isSuitableFor(Backend backend) override {
39        return backend == kNonRendering_Backend;
40    }
41
42    const char* onGetName() override {
43        return fName.c_str();
44    }
45
46    void onDraw(int loops, SkCanvas*) override {
47        SkPoint dst[10];
48        SkMatrix klm;
49        int loopIdx;
50        for (int i = 0; i < loops * 50000; ++i) {
51            GrPathUtils::chopCubicAtLoopIntersection(fPoints, dst, &klm, &loopIdx);
52        }
53    }
54
55private:
56    SkPoint     fPoints[4];
57    SkString    fName;
58
59    typedef Benchmark INHERITED;
60};
61
62DEF_BENCH( return new CubicKLMBench(285.625f, 499.687f, 411.625f, 808.188f,
63                                    1064.62f, 135.688f, 1042.63f, 585.187f); )
64DEF_BENCH( return new CubicKLMBench(635.625f, 614.687f, 171.625f, 236.188f,
65                                    1064.62f, 135.688f, 516.625f, 570.187f); )
66
67#endif
68