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 "bench/Benchmark.h"
9 #include "include/core/SkBitmap.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkShader.h"
12 #include "include/core/SkString.h"
13 #include "include/core/SkTileMode.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 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 public:
ConstXTileBench(SkTileMode xTile,SkTileMode yTile,SkFilterMode fm,bool doTrans,bool doScale)32 ConstXTileBench(SkTileMode xTile,
33 SkTileMode yTile,
34 SkFilterMode fm,
35 bool doTrans,
36 bool doScale)
37 : fFilterMode{fm}
38 , fXTile{xTile}
39 , fYTile{yTile}
40 , fDoTrans{doTrans}
41 , fDoScale{doScale} {
42 fName.printf("constXTile_");
43
44 static const char* gTileModeStr[kSkTileModeCount] = { "C", "R", "M", "D" };
45 fName.append(gTileModeStr[(unsigned)xTile]);
46 fName.append(gTileModeStr[(unsigned)yTile]);
47
48 if (fm != SkFilterMode::kNearest) {
49 fName.append("_filter");
50 }
51
52 if (doTrans) {
53 fName.append("_trans");
54 }
55
56 if (doScale) {
57 fName.append("_scale");
58 }
59 }
60
61 protected:
onGetName()62 const char* onGetName() override {
63 return fName.c_str();
64 }
65
onDelayedSetup()66 void onDelayedSetup() override {
67 SkBitmap bm;
68
69 bm.allocN32Pixels(kWidth, kHeight, true);
70 bm.eraseColor(SK_ColorWHITE);
71
72 create_gradient(&bm);
73
74 fPaint.setShader(bm.makeShader(fXTile, fYTile, SkSamplingOptions(fFilterMode)));
75 }
76
onDraw(int loops,SkCanvas * canvas)77 void onDraw(int loops, SkCanvas* canvas) override {
78 SkPaint paint(fPaint);
79 this->setupPaint(&paint);
80 if (fDoTrans) {
81 paint.setColor(SkColorSetARGB(0x80, 0xFF, 0xFF, 0xFF));
82 }
83
84 SkRect r;
85
86 if (fDoScale) {
87 r = SkRect::MakeWH(SkIntToScalar(2 * 640), SkIntToScalar(2 * 480));
88 canvas->scale(SK_ScalarHalf, SK_ScalarHalf);
89 } else {
90 r = SkRect::MakeWH(SkIntToScalar(640), SkIntToScalar(480));
91 }
92
93 SkPaint bgPaint;
94 bgPaint.setColor(SK_ColorWHITE);
95
96 for (int i = 0; i < loops; i++) {
97 if (fDoTrans) {
98 canvas->drawRect(r, bgPaint);
99 }
100
101 canvas->drawRect(r, paint);
102 }
103 }
104
105 private:
106 inline static constexpr int kWidth = 1;
107 inline static constexpr int kHeight = 300;
108
109 const SkFilterMode fFilterMode;
110 const SkTileMode fXTile,
111 fYTile;
112 const bool fDoTrans,
113 fDoScale;
114 SkPaint fPaint;
115 SkString fName;
116 using INHERITED = Benchmark;
117 };
118
119 // Scaled benches are trending towards free. Seems like caching.
120 // TODO(mtklein, reed): fix and reenable
121
122 constexpr SkFilterMode gNN = SkFilterMode::kNearest;
123 constexpr SkFilterMode gLI = SkFilterMode::kLinear;
124
125 //DEF_BENCH(return new ConstXTileBench(SkTileMode::kRepeat, SkTileMode::kRepeat, false, false, true))
126 DEF_BENCH(return new ConstXTileBench(SkTileMode::kClamp, SkTileMode::kClamp, gNN, false, false))
127 //DEF_BENCH(return new ConstXTileBench(SkTileMode::kMirror, SkTileMode::kMirror, false, false, true))
128
129 DEF_BENCH(return new ConstXTileBench(SkTileMode::kRepeat, SkTileMode::kRepeat, gLI, false, false))
130 //DEF_BENCH(return new ConstXTileBench(SkTileMode::kClamp, SkTileMode::kClamp, true, false, true))
131 DEF_BENCH(return new ConstXTileBench(SkTileMode::kMirror, SkTileMode::kMirror, gLI, false, false))
132
133 //DEF_BENCH(return new ConstXTileBench(SkTileMode::kRepeat, SkTileMode::kRepeat, false, true, true))
134 DEF_BENCH(return new ConstXTileBench(SkTileMode::kClamp, SkTileMode::kClamp, gNN, true, false))
135 //DEF_BENCH(return new ConstXTileBench(SkTileMode::kMirror, SkTileMode::kMirror, false, true, true))
136
137 DEF_BENCH(return new ConstXTileBench(SkTileMode::kRepeat, SkTileMode::kRepeat, gLI, true, false))
138 //DEF_BENCH(return new ConstXTileBench(SkTileMode::kClamp, SkTileMode::kClamp, true, true, true))
139 DEF_BENCH(return new ConstXTileBench(SkTileMode::kMirror, SkTileMode::kMirror, gLI, true, false))
140