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 "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkColorPriv.h"
12 #include "SkPaint.h"
13 #include "SkShader.h"
14 #include "SkString.h"
15
16 static const char* gConfigName[] = {
17 "ERROR", "a1", "a8", "index8", "565", "4444", "8888"
18 };
19
draw_into_bitmap(const SkBitmap & bm)20 static void draw_into_bitmap(const SkBitmap& bm) {
21 const int w = bm.width();
22 const int h = bm.height();
23
24 SkCanvas canvas(bm);
25 SkPaint p;
26 p.setAntiAlias(true);
27 p.setColor(SK_ColorRED);
28 canvas.drawCircle(SkIntToScalar(w)/2, SkIntToScalar(h)/2,
29 SkIntToScalar(SkMin32(w, h))*3/8, p);
30
31 SkRect r;
32 r.set(0, 0, SkIntToScalar(w), SkIntToScalar(h));
33 p.setStyle(SkPaint::kStroke_Style);
34 p.setStrokeWidth(SkIntToScalar(4));
35 p.setColor(SK_ColorBLUE);
36 canvas.drawRect(r, p);
37 }
38
conv_6_to_byte(int x)39 static int conv_6_to_byte(int x) {
40 return x * 0xFF / 5;
41 }
42
conv_byte_to_6(int x)43 static int conv_byte_to_6(int x) {
44 return x * 5 / 255;
45 }
46
compute_666_index(SkPMColor c)47 static uint8_t compute_666_index(SkPMColor c) {
48 int r = SkGetPackedR32(c);
49 int g = SkGetPackedG32(c);
50 int b = SkGetPackedB32(c);
51
52 return conv_byte_to_6(r) * 36 + conv_byte_to_6(g) * 6 + conv_byte_to_6(b);
53 }
54
convert_to_index666(const SkBitmap & src,SkBitmap * dst,bool isOpaque)55 static void convert_to_index666(const SkBitmap& src, SkBitmap* dst,
56 bool isOpaque) {
57 SkPMColor storage[216];
58 SkPMColor* colors = storage;
59 // rrr ggg bbb
60 for (int r = 0; r < 6; r++) {
61 int rr = conv_6_to_byte(r);
62 for (int g = 0; g < 6; g++) {
63 int gg = conv_6_to_byte(g);
64 for (int b = 0; b < 6; b++) {
65 int bb = conv_6_to_byte(b);
66 *colors++ = SkPreMultiplyARGB(0xFF, rr, gg, bb);
67 }
68 }
69 }
70 SkAlphaType aType = isOpaque ? kOpaque_SkAlphaType : kPremul_SkAlphaType;
71 SkColorTable* ctable = new SkColorTable(storage, 216, aType);
72 dst->setConfig(SkBitmap::kIndex8_Config, src.width(), src.height());
73 dst->allocPixels(ctable);
74 ctable->unref();
75
76 SkAutoLockPixels alps(src);
77 SkAutoLockPixels alpd(*dst);
78
79 for (int y = 0; y < src.height(); y++) {
80 const SkPMColor* srcP = src.getAddr32(0, y);
81 uint8_t* dstP = dst->getAddr8(0, y);
82 for (int x = src.width() - 1; x >= 0; --x) {
83 *dstP++ = compute_666_index(*srcP++);
84 }
85 }
86 }
87
88 class RepeatTileBench : public SkBenchmark {
89 SkPaint fPaint;
90 SkString fName;
91 SkBitmap fBitmap;
92 bool fIsOpaque;
93 SkBitmap::Config fConfig;
94 public:
RepeatTileBench(SkBitmap::Config c,bool isOpaque=false)95 RepeatTileBench(SkBitmap::Config c, bool isOpaque = false) {
96 const int w = 50;
97 const int h = 50;
98 fConfig = c;
99 fIsOpaque = isOpaque;
100
101 if (SkBitmap::kIndex8_Config == fConfig) {
102 fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
103 } else {
104 fBitmap.setConfig(fConfig, w, h);
105 }
106 fName.printf("repeatTile_%s_%c",
107 gConfigName[fBitmap.config()], isOpaque ? 'X' : 'A');
108 }
109
110 protected:
onGetName()111 virtual const char* onGetName() SK_OVERRIDE {
112 return fName.c_str();
113 }
114
onPreDraw()115 virtual void onPreDraw() SK_OVERRIDE {
116 fBitmap.allocPixels();
117 fBitmap.eraseColor(fIsOpaque ? SK_ColorWHITE : 0);
118 fBitmap.setAlphaType(fIsOpaque ?
119 kOpaque_SkAlphaType : kPremul_SkAlphaType);
120
121 draw_into_bitmap(fBitmap);
122
123 if (SkBitmap::kIndex8_Config == fConfig) {
124 SkBitmap tmp;
125 convert_to_index666(fBitmap, &tmp, fIsOpaque);
126 fBitmap = tmp;
127 }
128
129 SkShader* s = SkShader::CreateBitmapShader(fBitmap,
130 SkShader::kRepeat_TileMode,
131 SkShader::kRepeat_TileMode);
132 fPaint.setShader(s)->unref();
133 }
134
135
onDraw(const int loops,SkCanvas * canvas)136 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
137 SkPaint paint(fPaint);
138 this->setupPaint(&paint);
139
140 for (int i = 0; i < loops; i++) {
141 canvas->drawPaint(paint);
142 }
143 }
144
145 private:
146 typedef SkBenchmark INHERITED;
147 };
148
149 DEF_BENCH(return new RepeatTileBench(SkBitmap::kARGB_8888_Config, true))
150 DEF_BENCH(return new RepeatTileBench(SkBitmap::kARGB_8888_Config, false))
151 DEF_BENCH(return new RepeatTileBench(SkBitmap::kRGB_565_Config))
152 DEF_BENCH(return new RepeatTileBench(SkBitmap::kIndex8_Config))
153