src/third_party/skia/bench/ClipMaskBench.cpp

/*
 * Copyright 2017 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 "include/core/SkCanvas.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkImage.h"
#include "include/core/SkPictureRecorder.h"
#include "include/core/SkString.h"
#include "include/core/SkSurface.h"
#include "tools/ToolUtils.h"

static void DrawMask(SkCanvas* canvas) {
    ToolUtils::draw_checkerboard(canvas, SK_ColorTRANSPARENT, SK_ColorGREEN, 10);
}

class ClipMaskBench : public Benchmark {
public:
    using MaskMakerFunc = sk_sp<SkImage> (*)(int);

    ClipMaskBench(const char name[], const MaskMakerFunc maskMaker)
        : fName(SkStringPrintf("clipmask_%s", name))
        , fClip(maskMaker(kSize)) {}

protected:
    const char* onGetName() override { return fName.c_str(); }

    void onDraw(int loops, SkCanvas* canvas) override {
        SkCanvas::SaveLayerRec rec(nullptr, nullptr, nullptr, fClip.get(), nullptr, 0);

        for (int i = 0; i < loops; ++i) {
            canvas->saveLayer(rec);
            canvas->drawColor(SK_ColorBLUE);
            canvas->restore();
        }
    }

private:
    static constexpr int kSize = 400;

    SkString       fName;
    sk_sp<SkImage> fClip;
};

DEF_BENCH(return new ClipMaskBench("a8", [](int size) -> sk_sp<SkImage> {
    sk_sp<SkSurface> surface = SkSurface::MakeRaster(SkImageInfo::MakeA8(size, size));
    DrawMask(surface->getCanvas());
    return surface->makeImageSnapshot();
});)

DEF_BENCH(return new ClipMaskBench("8888", [](int size) -> sk_sp<SkImage> {
    sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(size, size);
    DrawMask(surface->getCanvas());
    return surface->makeImageSnapshot();
});)

DEF_BENCH(return new ClipMaskBench("picture", [](int size) -> sk_sp<SkImage> {
    SkPictureRecorder recorder;
    DrawMask(recorder.beginRecording(size, size));
    return SkImage::MakeFromPicture(recorder.finishRecordingAsPicture(), SkISize::Make(size, size),
                                    nullptr, nullptr, SkImage::BitDepth::kU8,
                                    SkColorSpace::MakeSRGB());
});)

/////////
#include "include/core/SkPath.h"
#include "include/core/SkSurface.h"

class RasterTileBench : public Benchmark {
    sk_sp<SkSurface> fSurf;
    SkPath           fPath;
    SkString       fName;
public:
    RasterTileBench() : fName("rastertile") {
        int W = 2014 * 20;
        int H = 20;
        fSurf = SkSurface::MakeRasterN32Premul(W, H);

        fPath.moveTo(0, 0);
        fPath.cubicTo(20, 10, 10, 15, 30, 5);
    }

protected:
    const char* onGetName() override { return fName.c_str(); }

    void onDraw(int loops, SkCanvas* canvas) override {
        SkPaint paint;
        paint.setStyle(SkPaint::kStroke_Style);
        paint.setStrokeWidth(1.1f);
        paint.setAntiAlias(true);

        for (int i = 0; i < loops; ++i) {
            for (int j = 0; j < 1000; ++j) {
                fSurf->getCanvas()->drawPath(fPath, paint);
            }
        }
    }

private:
};
DEF_BENCH(return new RasterTileBench;)