3 * Copyright 2011 Google Inc.
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
13 #include "SkTemplates.h"
21 static const char* fontQualityName(const SkPaint& paint) {
22 if (!paint.isAntiAlias()) {
25 if (paint.isLCDRenderText()) {
31 /* Some considerations for performance:
32 short -vs- long strings (measuring overhead)
33 tiny -vs- large pointsize (measure blit -vs- overhead)
34 1 -vs- many point sizes (measure cache lookup)
35 normal -vs- subpixel -vs- lineartext (minor)
36 force purge after each draw to measure scaler
38 text -vs- postext - pathtext
40 class TextBench : public Benchmark {
48 TextBench(const char text[], int ps,
49 SkColor color, FontQuality fq, bool doPos = false) {
55 fPaint.setAntiAlias(kBW != fq);
56 fPaint.setLCDRenderText(kLCD == fq);
57 fPaint.setTextSize(SkIntToScalar(ps));
58 fPaint.setColor(color);
61 size_t len = strlen(text);
62 SkScalar* adv = new SkScalar[len];
63 fPaint.getTextWidths(text, len, adv);
64 fPos = new SkPoint[len];
66 for (size_t i = 0; i < len; ++i) {
67 fPos[i].set(x, SkIntToScalar(50));
74 virtual ~TextBench() {
79 virtual const char* onGetName() {
80 fName.printf("text_%g", SkScalarToFloat(fPaint.getTextSize()));
84 fName.appendf("_%s", fontQualityName(fPaint));
85 if (SK_ColorBLACK != fPaint.getColor()) {
86 fName.appendf("_%02X", fPaint.getAlpha());
93 virtual void onDraw(const int loops, SkCanvas* canvas) {
94 const SkIPoint dim = this->getSize();
97 SkPaint paint(fPaint);
98 this->setupPaint(&paint);
99 // explicitly need these
100 paint.setColor(fPaint.getColor());
101 paint.setAntiAlias(kBW != fFQ);
102 paint.setLCDRenderText(kLCD == fFQ);
104 const SkScalar x0 = SkIntToScalar(-10);
105 const SkScalar y0 = SkIntToScalar(-10);
108 // realistically, the matrix is often at least translated, so we
109 // do that since it exercises different code in drawPosText.
110 canvas->translate(SK_Scalar1, SK_Scalar1);
113 for (int i = 0; i < loops; i++) {
115 canvas->drawPosText(fText.c_str(), fText.size(), fPos, paint);
117 SkScalar x = x0 + rand.nextUScalar1() * dim.fX;
118 SkScalar y = y0 + rand.nextUScalar1() * dim.fY;
119 canvas->drawText(fText.c_str(), fText.size(), x, y, paint);
125 typedef Benchmark INHERITED;
128 ///////////////////////////////////////////////////////////////////////////////
130 #define STR "Hamburgefons"
132 DEF_BENCH( return new TextBench(STR, 16, 0xFF000000, kBW); )
133 DEF_BENCH( return new TextBench(STR, 16, 0xFFFF0000, kBW); )
134 DEF_BENCH( return new TextBench(STR, 16, 0x88FF0000, kBW); )
136 DEF_BENCH( return new TextBench(STR, 16, 0xFF000000, kAA); )
137 DEF_BENCH( return new TextBench(STR, 16, 0xFFFF0000, kAA); )
138 DEF_BENCH( return new TextBench(STR, 16, 0x88FF0000, kAA); )
140 DEF_BENCH( return new TextBench(STR, 16, 0xFF000000, kLCD); )
141 DEF_BENCH( return new TextBench(STR, 16, 0xFFFF0000, kLCD); )
142 DEF_BENCH( return new TextBench(STR, 16, 0x88FF0000, kLCD); )
144 DEF_BENCH( return new TextBench(STR, 16, 0xFF000000, kAA, true); )