2a475eae62
Many tests and examples use drawText with a guess of how long the text is in bytes, or a call to strlen(). Add a helper to SkCanvas to simplify these examples. Add another helper for SkString. R=reed@google.com Change-Id: I0204a31e938f065606f08ee7cd9a6b36db791ee2 Reviewed-on: https://skia-review.googlesource.com/13642 Commit-Queue: Cary Clark <caryclark@google.com> Reviewed-by: Cary Clark <caryclark@google.com> Reviewed-by: Mike Reed <reed@google.com> Reviewed-by: Cary Clark <caryclark@skia.org>
97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
/*
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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 "Benchmark.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 "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 Benchmark {
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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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public:
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ShaderMaskBench(bool isOpaque, FontQuality fq) {
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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.setShader(SkShader::MakeColorShader(isOpaque ? 0xFFFFFFFF : 0x80808080));
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}
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protected:
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virtual const char* onGetName() {
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fName.printf("shadermask");
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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(int loops, 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 < loops; 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->drawString(fText, x, y, paint);
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}
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paint.setTextSize(SkIntToScalar(48));
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for (int i = 0; i < loops / 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->drawString(fText, x, y, paint);
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}
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}
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private:
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typedef Benchmark INHERITED;
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};
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///////////////////////////////////////////////////////////////////////////////
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DEF_BENCH( return new ShaderMaskBench(true, kBW); )
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DEF_BENCH( return new ShaderMaskBench(false, kBW); )
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DEF_BENCH( return new ShaderMaskBench(true, kAA); )
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DEF_BENCH( return new ShaderMaskBench(false, kAA); )
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DEF_BENCH( return new ShaderMaskBench(true, kLCD); )
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DEF_BENCH( return new ShaderMaskBench(false, kLCD); )
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