1 /*
2 * Copyright 2013 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8 #include "Benchmark.h"
9 #include "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkShader.h"
12 #include "SkString.h"
13
create_gradient(SkBitmap * bm)14 static void create_gradient(SkBitmap* bm) {
15 SkASSERT(1 == bm->width());
16 const int height = bm->height();
17
18 float deltaB = 255.0f / height;
19 float blue = 255.0f;
20
21 SkAutoLockPixels lock(*bm);
22 for (int y = 0; y < height; y++) {
23 *bm->getAddr32(0, y) = SkColorSetRGB(0, 0, (U8CPU) blue);
24 blue -= deltaB;
25 }
26 }
27
28 // Test out the special case of a tiled 1xN texture. Test out opacity,
29 // filtering and the different tiling modes
30 class ConstXTileBench : public Benchmark {
31 SkPaint fPaint;
32 SkString fName;
33 bool fDoFilter;
34 bool fDoTrans;
35 bool fDoScale;
36 static const int kWidth = 1;
37 static const int kHeight = 300;
38
39 public:
ConstXTileBench(SkShader::TileMode xTile,SkShader::TileMode yTile,bool doFilter,bool doTrans,bool doScale)40 ConstXTileBench(SkShader::TileMode xTile,
41 SkShader::TileMode yTile,
42 bool doFilter,
43 bool doTrans,
44 bool doScale)
45 : fDoFilter(doFilter)
46 , fDoTrans(doTrans)
47 , fDoScale(doScale) {
48 SkBitmap bm;
49
50 bm.allocN32Pixels(kWidth, kHeight, true);
51 bm.eraseColor(SK_ColorWHITE);
52
53 create_gradient(&bm);
54
55 fPaint.setShader(SkShader::MakeBitmapShader(bm, xTile, yTile));
56
57 fName.printf("constXTile_");
58
59 static const char* gTileModeStr[SkShader::kTileModeCount] = { "C", "R", "M" };
60 fName.append(gTileModeStr[xTile]);
61 fName.append(gTileModeStr[yTile]);
62
63 if (doFilter) {
64 fName.append("_filter");
65 }
66
67 if (doTrans) {
68 fName.append("_trans");
69 }
70
71 if (doScale) {
72 fName.append("_scale");
73 }
74 }
75
76 protected:
onGetName()77 virtual const char* onGetName() {
78 return fName.c_str();
79 }
80
onDraw(int loops,SkCanvas * canvas)81 virtual void onDraw(int loops, SkCanvas* canvas) {
82 SkPaint paint(fPaint);
83 this->setupPaint(&paint);
84 paint.setFilterQuality(fDoFilter ? kLow_SkFilterQuality
85 : kNone_SkFilterQuality);
86 if (fDoTrans) {
87 paint.setColor(SkColorSetARGBMacro(0x80, 0xFF, 0xFF, 0xFF));
88 }
89
90 SkRect r;
91
92 if (fDoScale) {
93 r = SkRect::MakeWH(SkIntToScalar(2 * 640), SkIntToScalar(2 * 480));
94 canvas->scale(SK_ScalarHalf, SK_ScalarHalf);
95 } else {
96 r = SkRect::MakeWH(SkIntToScalar(640), SkIntToScalar(480));
97 }
98
99 SkPaint bgPaint;
100 bgPaint.setColor(SK_ColorWHITE);
101
102 for (int i = 0; i < loops; i++) {
103 if (fDoTrans) {
104 canvas->drawRect(r, bgPaint);
105 }
106
107 canvas->drawRect(r, paint);
108 }
109 }
110
111 private:
112 typedef Benchmark INHERITED;
113 };
114
115 // Scaled benches are trending towards free. Seems like caching.
116 // TODO(mtklein, reed): fix and reenable
117
118 //DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, false, false, true))
119 DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, false, false, false))
120 //DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, false, false, true))
121
122 DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, true, false, false))
123 //DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, true, false, true))
124 DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, true, false, false))
125
126 //DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, false, true, true))
127 DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, false, true, false))
128 //DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, false, true, true))
129
130 DEF_BENCH(return new ConstXTileBench(SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, true, true, false))
131 //DEF_BENCH(return new ConstXTileBench(SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, true, true, true))
132 DEF_BENCH(return new ConstXTileBench(SkShader::kMirror_TileMode, SkShader::kMirror_TileMode, true, true, false))
133