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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 "SkBenchmark.h"
#include "SkBlurImageFilter.h"
#include "SkCanvas.h"
#include "SkDevice.h"
#include "SkPaint.h"
#include "SkRandom.h"
#include "SkShader.h"
#include "SkString.h"
#define FILTER_WIDTH_SMALL 32
#define FILTER_HEIGHT_SMALL 32
#define FILTER_WIDTH_LARGE 256
#define FILTER_HEIGHT_LARGE 256
#define BLUR_SIGMA_SMALL SkFloatToScalar(1.0f)
#define BLUR_SIGMA_LARGE SkFloatToScalar(10.0f)
class BlurImageFilterBench : public SkBenchmark {
public:
BlurImageFilterBench(void* param, SkScalar sigmaX, SkScalar sigmaY, bool small) :
INHERITED(param), fIsSmall(small), fInitialized(false), fSigmaX(sigmaX), fSigmaY(sigmaY) {
fName.printf("blur_image_filter_%s_%.2f_%.2f", fIsSmall ? "small" : "large",
SkScalarToFloat(sigmaX), SkScalarToFloat(sigmaY));
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onPreDraw() SK_OVERRIDE {
if (!fInitialized) {
make_checkerboard();
fInitialized = true;
}
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
SkPaint paint;
paint.setImageFilter(new SkBlurImageFilter(fSigmaX, fSigmaY))->unref();
canvas->drawBitmap(fCheckerboard, 0, 0, &paint);
}
private:
void make_checkerboard() {
const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h);
fCheckerboard.allocPixels();
SkDevice device(fCheckerboard);
SkCanvas canvas(&device);
canvas.clear(0x00000000);
SkPaint darkPaint;
darkPaint.setColor(0xFF804020);
SkPaint lightPaint;
lightPaint.setColor(0xFF244484);
for (int y = 0; y < h; y += 16) {
for (int x = 0; x < w; 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();
}
}
}
SkString fName;
bool fIsSmall;
bool fInitialized;
SkBitmap fCheckerboard;
SkScalar fSigmaX, fSigmaY;
typedef SkBenchmark INHERITED;
};
DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true);)
DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false);)
DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true);)
DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false);)
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