1f2f338e23
https://codereview.chromium.org/22978012/ git-svn-id: http://skia.googlecode.com/svn/trunk@10995 2bbb7eff-a529-9590-31e7-b0007b416f81
88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkBenchmark.h"
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#include "SkBitmapDevice.h"
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#include "SkBlurImageFilter.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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#include "SkShader.h"
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#include "SkString.h"
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#define FILTER_WIDTH_SMALL 32
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#define FILTER_HEIGHT_SMALL 32
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#define FILTER_WIDTH_LARGE 256
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#define FILTER_HEIGHT_LARGE 256
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#define BLUR_SIGMA_SMALL SkFloatToScalar(1.0f)
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#define BLUR_SIGMA_LARGE SkFloatToScalar(10.0f)
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class BlurImageFilterBench : public SkBenchmark {
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public:
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BlurImageFilterBench(void* param, SkScalar sigmaX, SkScalar sigmaY, bool small) :
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INHERITED(param), fIsSmall(small), fInitialized(false), fSigmaX(sigmaX), fSigmaY(sigmaY) {
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fName.printf("blur_image_filter_%s_%.2f_%.2f", fIsSmall ? "small" : "large",
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SkScalarToFloat(sigmaX), SkScalarToFloat(sigmaY));
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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return fName.c_str();
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}
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virtual void onPreDraw() SK_OVERRIDE {
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if (!fInitialized) {
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make_checkerboard();
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fInitialized = true;
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}
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}
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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SkPaint paint;
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paint.setImageFilter(new SkBlurImageFilter(fSigmaX, fSigmaY))->unref();
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canvas->drawBitmap(fCheckerboard, 0, 0, &paint);
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}
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private:
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void make_checkerboard() {
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const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
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const int h = fIsSmall ? FILTER_HEIGHT_LARGE : FILTER_HEIGHT_LARGE;
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fCheckerboard.setConfig(SkBitmap::kARGB_8888_Config, w, h);
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fCheckerboard.allocPixels();
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SkBitmapDevice device(fCheckerboard);
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SkCanvas canvas(&device);
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canvas.clear(0x00000000);
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SkPaint darkPaint;
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darkPaint.setColor(0xFF804020);
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SkPaint lightPaint;
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lightPaint.setColor(0xFF244484);
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for (int y = 0; y < h; y += 16) {
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for (int x = 0; x < w; x += 16) {
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canvas.save();
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canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas.drawRect(SkRect::MakeXYWH(0, 0, 8, 8), darkPaint);
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canvas.drawRect(SkRect::MakeXYWH(8, 0, 8, 8), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(0, 8, 8, 8), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(8, 8, 8, 8), darkPaint);
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canvas.restore();
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}
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}
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}
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SkString fName;
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bool fIsSmall;
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bool fInitialized;
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SkBitmap fCheckerboard;
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SkScalar fSigmaX, fSigmaY;
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typedef SkBenchmark INHERITED;
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};
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DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, true);)
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DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_SMALL, BLUR_SIGMA_SMALL, false);)
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DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, true);)
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DEF_BENCH(return new BlurImageFilterBench(p, BLUR_SIGMA_LARGE, BLUR_SIGMA_LARGE, false);)
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