ShaderMaskBench.cpp revision c289743864e2ab926a95e617a5cd1d29b26d1825 
1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8#include "SkBenchmark.h"
9#include "SkCanvas.h"
10#include "SkColorShader.h"
11#include "SkFontHost.h"
12#include "SkPaint.h"
13#include "SkRandom.h"
14#include "SkString.h"
15#include "SkTemplates.h"
16
17#define STR     "Hamburgefons"
18
19enum FontQuality {
20    kBW,
21    kAA,
22    kLCD
23};
24
25static const char* fontQualityName(const SkPaint& paint) {
26    if (!paint.isAntiAlias()) {
27        return "BW";
28    }
29    if (paint.isLCDRenderText()) {
30        return "LCD";
31    }
32    return "AA";
33}
34
35class ShaderMaskBench : public SkBenchmark {
36    SkPaint     fPaint;
37    SkString    fText;
38    SkString    fName;
39    FontQuality fFQ;
40public:
41    ShaderMaskBench(void* param, bool isOpaque, FontQuality fq) : INHERITED(param) {
42        fFQ = fq;
43        fText.set(STR);
44
45        fPaint.setAntiAlias(kBW != fq);
46        fPaint.setLCDRenderText(kLCD == fq);
47        fPaint.setAlpha(isOpaque ? 0xFF : 0x80);
48        fPaint.setShader(new SkColorShader)->unref();
49    }
50
51protected:
52    virtual const char* onGetName() {
53        fName.printf("shadermask");
54        fName.appendf("_%s", fontQualityName(fPaint));
55        fName.appendf("_%02X", fPaint.getAlpha());
56        return fName.c_str();
57    }
58
59    virtual void onDraw(SkCanvas* canvas) {
60        const SkIPoint dim = this->getSize();
61        SkRandom rand;
62
63        SkPaint paint(fPaint);
64        this->setupPaint(&paint);
65        // explicitly need these
66        paint.setAlpha(fPaint.getAlpha());
67        paint.setAntiAlias(kBW != fFQ);
68        paint.setLCDRenderText(kLCD == fFQ);
69
70        const SkScalar x0 = SkIntToScalar(-10);
71        const SkScalar y0 = SkIntToScalar(-10);
72
73        paint.setTextSize(SkIntToScalar(12));
74        for (int i = 0; i < this->getLoops(); i++) {
75            SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
76            SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
77            canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
78        }
79
80        paint.setTextSize(SkIntToScalar(48));
81        for (int i = 0; i < this->getLoops() / 4 ; i++) {
82            SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
83            SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
84            canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
85        }
86    }
87
88private:
89    typedef SkBenchmark INHERITED;
90};
91
92///////////////////////////////////////////////////////////////////////////////
93
94static SkBenchmark* Fact00(void* p) { return new ShaderMaskBench(p, true,  kBW); }
95static SkBenchmark* Fact01(void* p) { return new ShaderMaskBench(p, false, kBW); }
96static SkBenchmark* Fact10(void* p) { return new ShaderMaskBench(p, true,  kAA); }
97static SkBenchmark* Fact11(void* p) { return new ShaderMaskBench(p, false, kAA); }
98static SkBenchmark* Fact20(void* p) { return new ShaderMaskBench(p, true,  kLCD); }
99static SkBenchmark* Fact21(void* p) { return new ShaderMaskBench(p, false, kLCD); }
100
101static BenchRegistry gReg00(Fact00);
102static BenchRegistry gReg01(Fact01);
103static BenchRegistry gReg10(Fact10);
104static BenchRegistry gReg11(Fact11);
105static BenchRegistry gReg20(Fact20);
106static BenchRegistry gReg21(Fact21);
107