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 "SkSfntUtils.h"
15 #include "SkString.h"
16 #include "SkTemplates.h"
17
18 #define STR "Hamburgefons"
19
20 enum FontQuality {
21 kBW,
22 kAA,
23 kLCD
24 };
25
fontQualityName(const SkPaint & paint)26 static const char* fontQualityName(const SkPaint& paint) {
27 if (!paint.isAntiAlias()) {
28 return "BW";
29 }
30 if (paint.isLCDRenderText()) {
31 return "LCD";
32 }
33 return "AA";
34 }
35
36 class ShaderMaskBench : public SkBenchmark {
37 SkPaint fPaint;
38 SkString fText;
39 SkString fName;
40 FontQuality fFQ;
41 enum { N = SkBENCHLOOP(500) };
42 public:
ShaderMaskBench(void * param,bool isOpaque,FontQuality fq)43 ShaderMaskBench(void* param, bool isOpaque, FontQuality fq) : INHERITED(param) {
44 fFQ = fq;
45 fText.set(STR);
46
47 fPaint.setAntiAlias(kBW != fq);
48 fPaint.setLCDRenderText(kLCD == fq);
49 fPaint.setAlpha(isOpaque ? 0xFF : 0x80);
50 fPaint.setShader(new SkColorShader)->unref();
51 }
52
53 protected:
onGetName()54 virtual const char* onGetName() {
55 fName.printf("shadermask", SkScalarToFloat(fPaint.getTextSize()));
56 fName.appendf("_%s", fontQualityName(fPaint));
57 fName.appendf("_%02X", fPaint.getAlpha());
58 return fName.c_str();
59 }
60
onDraw(SkCanvas * canvas)61 virtual void onDraw(SkCanvas* canvas) {
62 const SkIPoint dim = this->getSize();
63 SkRandom rand;
64
65 SkPaint paint(fPaint);
66 this->setupPaint(&paint);
67 // explicitly need these
68 paint.setAlpha(fPaint.getAlpha());
69 paint.setAntiAlias(kBW != fFQ);
70 paint.setLCDRenderText(kLCD == fFQ);
71
72 const SkScalar x0 = SkIntToScalar(-10);
73 const SkScalar y0 = SkIntToScalar(-10);
74
75 paint.setTextSize(SkIntToScalar(12));
76 for (int i = 0; i < N; i++) {
77 SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
78 SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
79 canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
80 }
81
82 paint.setTextSize(SkIntToScalar(48));
83 for (int i = 0; i < N/4; i++) {
84 SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
85 SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
86 canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
87 }
88 }
89
90 private:
91 typedef SkBenchmark INHERITED;
92 };
93
94 ///////////////////////////////////////////////////////////////////////////////
95
Fact00(void * p)96 static SkBenchmark* Fact00(void* p) { return new ShaderMaskBench(p, true, kBW); }
Fact01(void * p)97 static SkBenchmark* Fact01(void* p) { return new ShaderMaskBench(p, false, kBW); }
Fact10(void * p)98 static SkBenchmark* Fact10(void* p) { return new ShaderMaskBench(p, true, kAA); }
Fact11(void * p)99 static SkBenchmark* Fact11(void* p) { return new ShaderMaskBench(p, false, kAA); }
Fact20(void * p)100 static SkBenchmark* Fact20(void* p) { return new ShaderMaskBench(p, true, kLCD); }
Fact21(void * p)101 static SkBenchmark* Fact21(void* p) { return new ShaderMaskBench(p, false, kLCD); }
102
103 static BenchRegistry gReg00(Fact00);
104 static BenchRegistry gReg01(Fact01);
105 static BenchRegistry gReg10(Fact10);
106 static BenchRegistry gReg11(Fact11);
107 static BenchRegistry gReg20(Fact20);
108 static BenchRegistry gReg21(Fact21);
109
110