зеркало из https://github.com/mozilla/moz-skia.git
110 строки
3.2 KiB
C++
110 строки
3.2 KiB
C++
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/*
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* Copyright 2011 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 "SkCanvas.h"
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#include "SkColorShader.h"
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#include "SkFontHost.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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#include "SkSfntUtils.h"
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#include "SkString.h"
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#include "SkTemplates.h"
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#define STR "Hamburgefons"
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enum FontQuality {
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kBW,
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kAA,
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kLCD
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};
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static const char* fontQualityName(const SkPaint& paint) {
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if (!paint.isAntiAlias()) {
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return "BW";
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}
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if (paint.isLCDRenderText()) {
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return "LCD";
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}
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return "AA";
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}
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class ShaderMaskBench : public SkBenchmark {
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SkPaint fPaint;
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SkString fText;
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SkString fName;
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FontQuality fFQ;
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enum { N = SkBENCHLOOP(500) };
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public:
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ShaderMaskBench(void* param, bool isOpaque, FontQuality fq) : INHERITED(param) {
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fFQ = fq;
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fText.set(STR);
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fPaint.setAntiAlias(kBW != fq);
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fPaint.setLCDRenderText(kLCD == fq);
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fPaint.setAlpha(isOpaque ? 0xFF : 0x80);
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fPaint.setShader(new SkColorShader)->unref();
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}
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protected:
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virtual const char* onGetName() {
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fName.printf("shadermask", SkScalarToFloat(fPaint.getTextSize()));
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fName.appendf("_%s", fontQualityName(fPaint));
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fName.appendf("_%02X", fPaint.getAlpha());
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return fName.c_str();
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}
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virtual void onDraw(SkCanvas* canvas) {
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const SkIPoint dim = this->getSize();
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SkRandom rand;
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SkPaint paint(fPaint);
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this->setupPaint(&paint);
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// explicitly need these
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paint.setAlpha(fPaint.getAlpha());
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paint.setAntiAlias(kBW != fFQ);
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paint.setLCDRenderText(kLCD == fFQ);
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const SkScalar x0 = SkIntToScalar(-10);
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const SkScalar y0 = SkIntToScalar(-10);
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paint.setTextSize(SkIntToScalar(12));
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for (int i = 0; i < N; i++) {
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SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
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SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
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canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
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}
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paint.setTextSize(SkIntToScalar(48));
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for (int i = 0; i < N/4; i++) {
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SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
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SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
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canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
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}
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}
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private:
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typedef SkBenchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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static SkBenchmark* Fact00(void* p) { return new ShaderMaskBench(p, true, kBW); }
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static SkBenchmark* Fact01(void* p) { return new ShaderMaskBench(p, false, kBW); }
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static SkBenchmark* Fact10(void* p) { return new ShaderMaskBench(p, true, kAA); }
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static SkBenchmark* Fact11(void* p) { return new ShaderMaskBench(p, false, kAA); }
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static SkBenchmark* Fact20(void* p) { return new ShaderMaskBench(p, true, kLCD); }
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static SkBenchmark* Fact21(void* p) { return new ShaderMaskBench(p, false, kLCD); }
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static BenchRegistry gReg00(Fact00);
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static BenchRegistry gReg01(Fact01);
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static BenchRegistry gReg10(Fact10);
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static BenchRegistry gReg11(Fact11);
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static BenchRegistry gReg20(Fact20);
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static BenchRegistry gReg21(Fact21);
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