skia2/bench/ShaderMaskBench.cpp
commit-bot@chromium.org 6485b0be74 Switch out random number generator for tests, benches, samples.
This change makes tests, benches and samples use the new SkMWCRandom PRNG. GMs will be saved for another time, as they'll require rebaselining.

R=reed@google.com, bsalomon@google.com

Author: jvanverth@google.com

Review URL: https://chromiumcodereview.appspot.com/23653018

git-svn-id: http://skia.googlecode.com/svn/trunk@11136 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-09-06 19:05:11 +00:00

108 lines
3.1 KiB
C++

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