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87 lines
2.7 KiB
87 lines
2.7 KiB
4 months ago
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/*
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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 "Benchmark.h"
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkMagnifierImageFilter.h"
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#include "SkRandom.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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class MagnifierBench : public Benchmark {
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public:
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MagnifierBench(bool small) :
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fIsSmall(small), fInitialized(false) {
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}
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protected:
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const char* onGetName() override {
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return fIsSmall ? "magnifier_small" : "magnifier_large";
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}
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void onDelayedSetup() 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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void onDraw(int loops, SkCanvas* canvas) override {
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const int w = fIsSmall ? FILTER_WIDTH_SMALL : FILTER_WIDTH_LARGE;
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const int h = fIsSmall ? FILTER_HEIGHT_SMALL : FILTER_HEIGHT_LARGE;
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SkPaint paint;
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paint.setImageFilter(
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SkMagnifierImageFilter::Make(
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SkRect::MakeXYWH(SkIntToScalar(w / 4),
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SkIntToScalar(h / 4),
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SkIntToScalar(w / 2),
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SkIntToScalar(h / 2)), 100, nullptr));
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for (int i = 0; i < loops; i++) {
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canvas->drawBitmap(fCheckerboard, 0, 0, &paint);
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}
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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.allocN32Pixels(w, h);
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SkCanvas canvas(fCheckerboard);
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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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bool fIsSmall;
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bool fInitialized;
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SkBitmap fCheckerboard;
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new MagnifierBench(true); )
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DEF_BENCH( return new MagnifierBench(false); )
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