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BlurImageFilterBench.cpp
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/*
* Copyright 2013 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/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "include/core/SkShader.h"
#include "include/core/SkString.h"
#include "include/effects/SkImageFilters.h"
#include "include/utils/SkRandom.h"
#define FILTER_WIDTH_SMALL 32
#define FILTER_HEIGHT_SMALL 32
#define FILTER_WIDTH_LARGE 256
#define FILTER_HEIGHT_LARGE 256
#define BLUR_SIGMA_MINI 0.5f
#define BLUR_SIGMA_SMALL 1.0f
#define BLUR_SIGMA_LARGE 10.0f
#define BLUR_SIGMA_HUGE 80.0f
// When 'cropped' is set we apply a cropRect to the blurImageFilter. The crop rect is an inset of
// the source's natural dimensions. This is intended to exercise blurring a larger source bitmap
// to a smaller destination bitmap.
// When 'expanded' is set we apply a cropRect to the input of the blurImageFilter (a noOp
// offsetImageFilter). The crop rect in this case is an inset of the source's natural dimensions.
// An additional crop rect is applied to the blurImageFilter that is just the natural dimensions
// of the source (not inset). This is intended to exercise blurring a smaller source bitmap to a
// larger destination.
static sk_sp<SkImage> make_checkerboard(int width, int height) {
SkBitmap bm;
bm.allocN32Pixels(width, height);
SkCanvas canvas(bm);
canvas.clear(0x00000000);
SkPaint darkPaint;
darkPaint.setColor(0xFF804020);
SkPaint lightPaint;
lightPaint.setColor(0xFF244484);
for (int y = 0; y < height; y += 16) {
for (int x = 0; x < width; x += 16) {
canvas.save();
canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
canvas.restore();
}
}
return bm.asImage();
}
class BlurImageFilterBench : public Benchmark {
public:
BlurImageFilterBench(SkScalar sigmaX, SkScalar sigmaY, bool small, bool cropped,
bool expanded)
: fIsSmall(small)
, fIsCropped(cropped)
, fIsExpanded(expanded)
, fInitialized(false)
, fSigmaX(sigmaX)
, fSigmaY(sigmaY) {
fName.printf("blur_image_filter_%s%s%s_%.2f_%.2f",
fIsSmall ? "small" : "large",
fIsCropped ? "_cropped" : "",
fIsExpanded ? "_expanded" : "",
SkScalarToFloat(sigmaX), SkScalarToFloat(sigmaY));
SkASSERT(!fIsExpanded || fIsCropped); // never want expansion w/o cropping
}
protected:
const char* onGetName() override {
return fName.c_str();
}
void onDelayedSetup() override {
if (!fInitialized) {
fCheckerboard = make_checkerboard(fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE,
fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE);
fInitialized = true;
}
}
void onDraw(int loops, SkCanvas* canvas) override {
static const int kX = 0;
static const int kY = 0;
const SkIRect bmpRect = SkIRect::MakeXYWH(kX, kY, fCheckerboard->width(),
fCheckerboard->height());
const SkIRect bmpRectInset = bmpRect.makeInset(10, 10);
sk_sp<SkImageFilter> input = fIsExpanded
? SkImageFilters::Offset(0, 0, nullptr, &bmpRectInset)
: nullptr;
const SkIRect* crop =
fIsExpanded ? &bmpRect : fIsCropped ? &bmpRectInset : nullptr;
SkPaint paint;
paint.setImageFilter(SkImageFilters::Blur(fSigmaX, fSigmaY, std::move(input), crop));
SkSamplingOptions sampling;
for (int i = 0; i < loops; i++) {
canvas->drawImage(fCheckerboard, kX, kY, sampling, &paint);
}
}
private:
SkString fName;
bool fIsSmall;
bool fIsCropped;
bool fIsExpanded;
bool fInitialized;
sk_sp<SkImage> fCheckerboard;
SkScalar fSigmaX, fSigmaY;
using INHERITED = Benchmark;
};
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, true, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false, false, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, true, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false, true, false);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, 0, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, 0, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_LARGE, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(0, BLUR_SIGMA_SMALL, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, true, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_MINI, BLUR_SIGMA_MINI, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, true, true, true);)
DEF_BENCH(return new BlurImageFilterBench(BLUR_SIGMA_HUGE, BLUR_SIGMA_HUGE, false, true, true);)