1
2 /*
3 * Copyright 2013 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
9 #include "SkBenchmark.h"
10 #include "SkBitmap.h"
11 #include "SkCanvas.h"
12 #include "SkShader.h"
13 #include "SkString.h"
14
create_gradient(SkBitmap * bm)15 static void create_gradient(SkBitmap* bm) {
16 SkASSERT(1 == bm->width());
17 const int height = bm->height();
18
19 float deltaB = 255.0f / height;
20 float blue = 255.0f;
21
22 SkAutoLockPixels lock(*bm);
23 for (int y = 0; y < height; y++) {
24 *bm->getAddr32(0, y) = SkColorSetRGB(0, 0, (U8CPU) blue);
25 blue -= deltaB;
26 }
27 }
28
29 // Test out the special case of a tiled 1xN texture. Test out opacity,
30 // filtering and the different tiling modes
31 class ConstXTileBench : public SkBenchmark {
32 SkPaint fPaint;
33 SkString fName;
34 bool fDoFilter;
35 bool fDoTrans;
36 bool fDoScale;
37 static const int kWidth = 1;
38 static const int kHeight = 300;
39
40 public:
ConstXTileBench(SkShader::TileMode xTile,SkShader::TileMode yTile,bool doFilter,bool doTrans,bool doScale)41 ConstXTileBench(SkShader::TileMode xTile,
42 SkShader::TileMode yTile,
43 bool doFilter,
44 bool doTrans,
45 bool doScale)
46 : fDoFilter(doFilter)
47 , fDoTrans(doTrans)
48 , fDoScale(doScale) {
49 SkBitmap bm;
50
51 bm.setConfig(SkBitmap::kARGB_8888_Config, kWidth, kHeight, 0,
52 kOpaque_SkAlphaType);
53 bm.allocPixels();
54 bm.eraseColor(SK_ColorWHITE);
55
56 create_gradient(&bm);
57
58 SkShader* s = SkShader::CreateBitmapShader(bm, xTile, yTile);
59 fPaint.setShader(s)->unref();
60
61 fName.printf("constXTile_");
62
63 static const char* gTileModeStr[SkShader::kTileModeCount] = { "C", "R", "M" };
64 fName.append(gTileModeStr[xTile]);
65 fName.append(gTileModeStr[yTile]);
66
67 if (doFilter) {
68 fName.append("_filter");
69 }
70
71 if (doTrans) {
72 fName.append("_trans");
73 }
74
75 if (doScale) {
76 fName.append("_scale");
77 }
78 }
79
80 protected:
onGetName()81 virtual const char* onGetName() {
82 return fName.c_str();
83 }
84
onDraw(const int loops,SkCanvas * canvas)85 virtual void onDraw(const int loops, SkCanvas* canvas) {
86 SkPaint paint(fPaint);
87 this->setupPaint(&paint);
88 paint.setFilterLevel(fDoFilter ? SkPaint::kLow_FilterLevel
89 : SkPaint::kNone_FilterLevel);
90 if (fDoTrans) {
91 paint.setColor(SkColorSetARGBMacro(0x80, 0xFF, 0xFF, 0xFF));
92 }
93
94 SkRect r;
95
96 if (fDoScale) {
97 r = SkRect::MakeWH(SkIntToScalar(2 * 640), SkIntToScalar(2 * 480));
98 canvas->scale(SK_ScalarHalf, SK_ScalarHalf);
99 } else {
100 r = SkRect::MakeWH(SkIntToScalar(640), SkIntToScalar(480));
101 }
102
103 SkPaint bgPaint;
104 bgPaint.setColor(SK_ColorWHITE);
105
106 for (int i = 0; i < loops; i++) {
107 if (fDoTrans) {
108 canvas->drawRect(r, bgPaint);
109 }
110
111 canvas->drawRect(r, paint);
112 }
113 }
114
115 private:
116 typedef SkBenchmark INHERITED;
117 };
118
119 DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, false, false, true))
120 DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, false, false, false))
121 DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, false, false, true))
122
123 DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, true, false, false))
124 DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, true, false, true))
125 DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, true, false, false))
126
127 DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, false, true, true))
128 DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, false, true, false))
129 DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, false, true, true))
130
131 DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, true, true, false))
132 DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, true, true, true))
133 DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, true, true, false))
134