BigPathBench.cpp

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/*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
#include "bench/Benchmark.h"
#include "bench/BigPath.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkPath.h"
#include "tools/ToolUtils.h"
 
enum Align {
    kLeft_Align,
    kMiddle_Align,
    kRight_Align
};
 
const char* gAlignName[] = { "left", "middle", "right" };
 
// Inspired by crbug.com/455429
class BigPathBench : public Benchmark {
    SkPath      fPath;
    SkString    fName;
    Align       fAlign;
    bool        fRound;
 
public:
    BigPathBench(Align align, bool round) : fAlign(align), fRound(round) {
        fName.printf("bigpath_%s", gAlignName[fAlign]);
        if (round) {
            fName.append("_round");
        }
    }
 
protected:
    const char* onGetName() override {
        return fName.c_str();
    }
 
    SkISize onGetSize() override {
        return SkISize::Make(640, 100);
    }
 
    void onDelayedSetup() override { fPath = BenchUtils::make_big_path(); }
 
    void onDraw(int loops, SkCanvas* canvas) override {
        SkPaint paint;
        paint.setAntiAlias(true);
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(2);
        if (fRound) {
            paint.setStrokeJoin(SkPaint::kRound_Join);
        }
        this->setupPaint(&paint);
 
        const SkRect r = fPath.getBounds();
        switch (fAlign) {
            case kLeft_Align:
                canvas->translate(-r.left(), 0);
                break;
            case kMiddle_Align:
                break;
            case kRight_Align:
                canvas->translate(640 - r.right(), 0);
                break;
        }
 
        for (int i = 0; i < loops; i++) {
            canvas->drawPath(fPath, paint);
        }
    }
 
private:
    using INHERITED = Benchmark;
};
 
DEF_BENCH( return new BigPathBench(kLeft_Align,     false); )
DEF_BENCH( return new BigPathBench(kMiddle_Align,   false); )
DEF_BENCH( return new BigPathBench(kRight_Align,    false); )
 
DEF_BENCH( return new BigPathBench(kLeft_Align,     true); )
DEF_BENCH( return new BigPathBench(kMiddle_Align,   true); )
DEF_BENCH( return new BigPathBench(kRight_Align,    true); )