1 /*
2 * Copyright 2014 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 "SkCanvas.h"
10 #include "SkGradientShader.h"
11 #include "SkPaint.h"
12 #include "SkPath.h"
13 #include "SkString.h"
14
15 enum ColorPattern {
16 kWhite_ColorPattern,
17 kBlue_ColorPattern,
18 kOpaqueBitmap_ColorPattern,
19 kAlphaBitmap_ColorPattern,
20 };
21
22 static const struct ColorPatternData{
23 SkColor fColor;
24 bool fIsBitmap;
25 const char* fName;
26 } gColorPatterns[] = {
27 // Keep this in same order as ColorPattern enum
28 { SK_ColorWHITE, false, "white" }, // kWhite_ColorPattern
29 { SK_ColorBLUE, false, "blue" }, // kBlue_ColorPattern
30 { SK_ColorWHITE, true, "obaqueBitMap" }, // kOpaqueBitmap_ColorPattern
31 { 0x10000000, true, "alphaBitmap" }, // kAlphaBitmap_ColorPattern
32 };
33
34 enum DrawType {
35 kRect_DrawType,
36 kPath_DrawType,
37 };
38
makebm(SkBitmap * bm,int w,int h)39 static void makebm(SkBitmap* bm, int w, int h) {
40 bm->allocN32Pixels(w, h);
41 bm->eraseColor(SK_ColorTRANSPARENT);
42
43 SkCanvas canvas(*bm);
44 SkScalar s = SkIntToScalar(SkMin32(w, h));
45 static const SkPoint kPts0[] = { { 0, 0 }, { s, s } };
46 static const SkPoint kPts1[] = { { s/2, 0 }, { s/2, s } };
47 static const SkScalar kPos[] = { 0, SK_Scalar1/2, SK_Scalar1 };
48 static const SkColor kColors0[] = {0x80F00080, 0xF0F08000, 0x800080F0 };
49 static const SkColor kColors1[] = {0xF08000F0, 0x8080F000, 0xF000F080 };
50
51
52 SkPaint paint;
53
54 paint.setShader(SkGradientShader::MakeLinear(kPts0, kColors0, kPos, SK_ARRAY_COUNT(kColors0),
55 SkShader::kClamp_TileMode));
56 canvas.drawPaint(paint);
57 paint.setShader(SkGradientShader::MakeLinear(kPts1, kColors1, kPos, SK_ARRAY_COUNT(kColors1),
58 SkShader::kClamp_TileMode));
59 canvas.drawPaint(paint);
60 }
61
62 /**
63 * This bench draws a grid of either rects or filled paths, with two alternating color patterns.
64 * This color patterns are passed in as enums to the class. The options are:
65 * 1) solid white color
66 * 2) solid blue color
67 * 3) opaque bitmap
68 * 4) partial alpha bitmap
69 * The same color pattern can be set for both arguments to create a uniform pattern on all draws.
70 *
71 * The bench is used to test a few things. First it can test any optimizations made for a specific
72 * color pattern (for example drawing an opaque bitmap versus one with partial alpha). Also it can
73 * be used to test the cost of program switching and/or GrDrawOp combining when alternating between
74 * different patterns when on the gpu.
75 */
76 class AlternatingColorPatternBench : public Benchmark {
77 public:
78 enum {
79 NX = 5,
80 NY = 5,
81 NUM_DRAWS = NX * NY,
82 };
83 sk_sp<SkShader> fBmShader;
84
85 SkPath fPaths[NUM_DRAWS];
86 SkRect fRects[NUM_DRAWS];
87 SkColor fColors[NUM_DRAWS];
88 sk_sp<SkShader> fShaders[NUM_DRAWS];
89
90 SkString fName;
91 ColorPatternData fPattern1;
92 ColorPatternData fPattern2;
93 DrawType fDrawType;
94 SkBitmap fBmp;
95
96
AlternatingColorPatternBench(ColorPattern pattern1,ColorPattern pattern2,DrawType drawType)97 AlternatingColorPatternBench(ColorPattern pattern1, ColorPattern pattern2, DrawType drawType) {
98 fPattern1 = gColorPatterns[pattern1];
99 fPattern2 = gColorPatterns[pattern2];
100 fName.printf("colorPattern_%s_%s_%s",
101 fPattern1.fName, fPattern2.fName,
102 kRect_DrawType == drawType ? "rect" : "path");
103 fDrawType = drawType;
104 }
105
106 protected:
onGetName()107 const char* onGetName() override {
108 return fName.c_str();
109 }
110
onDelayedSetup()111 void onDelayedSetup() override {
112 int w = 40;
113 int h = 40;
114 makebm(&fBmp, w, h);
115 fBmShader = SkShader::MakeBitmapShader(fBmp,
116 SkShader::kRepeat_TileMode,
117 SkShader::kRepeat_TileMode);
118 int offset = 2;
119 int count = 0;
120 for (int j = 0; j < NY; ++j) {
121 for (int i = 0; i < NX; ++i) {
122 int x = (w + offset) * i;
123 int y = (h * offset) * j;
124 if (kRect_DrawType == fDrawType) {
125 fRects[count].set(SkIntToScalar(x), SkIntToScalar(y),
126 SkIntToScalar(x + w), SkIntToScalar(y + h));
127 } else {
128 fPaths[count].moveTo(SkIntToScalar(x), SkIntToScalar(y));
129 fPaths[count].rLineTo(SkIntToScalar(w), 0);
130 fPaths[count].rLineTo(0, SkIntToScalar(h));
131 fPaths[count].rLineTo(SkIntToScalar(-w + 1), 0);
132 }
133 if (0 == count % 2) {
134 fColors[count] = fPattern1.fColor;
135 fShaders[count] = fPattern1.fIsBitmap ? fBmShader : nullptr;
136 } else {
137 fColors[count] = fPattern2.fColor;
138 fShaders[count] = fPattern2.fIsBitmap ? fBmShader : nullptr;
139 }
140 ++count;
141 }
142 }
143 }
144
onDraw(int loops,SkCanvas * canvas)145 void onDraw(int loops, SkCanvas* canvas) override {
146 SkPaint paint;
147 paint.setAntiAlias(false);
148 paint.setFilterQuality(kLow_SkFilterQuality);
149
150 for (int i = 0; i < loops; ++i) {
151 for (int j = 0; j < NUM_DRAWS; ++j) {
152 paint.setColor(fColors[j]);
153 paint.setShader(fShaders[j]);
154 if (kRect_DrawType == fDrawType) {
155 canvas->drawRect(fRects[j], paint);
156 } else {
157 canvas->drawPath(fPaths[j], paint);
158 }
159 }
160 }
161 }
162
163 private:
164 typedef Benchmark INHERITED;
165 };
166
167 DEF_BENCH(return new AlternatingColorPatternBench(kWhite_ColorPattern,
168 kWhite_ColorPattern,
169 kPath_DrawType);)
170 DEF_BENCH(return new AlternatingColorPatternBench(kBlue_ColorPattern,
171 kBlue_ColorPattern,
172 kPath_DrawType);)
173 DEF_BENCH(return new AlternatingColorPatternBench(kWhite_ColorPattern,
174 kBlue_ColorPattern,
175 kPath_DrawType);)
176
177 DEF_BENCH(return new AlternatingColorPatternBench(kOpaqueBitmap_ColorPattern,
178 kOpaqueBitmap_ColorPattern,
179 kPath_DrawType);)
180 DEF_BENCH(return new AlternatingColorPatternBench(kAlphaBitmap_ColorPattern,
181 kAlphaBitmap_ColorPattern,
182 kPath_DrawType);)
183 DEF_BENCH(return new AlternatingColorPatternBench(kOpaqueBitmap_ColorPattern,
184 kAlphaBitmap_ColorPattern,
185 kPath_DrawType);)
186
187 DEF_BENCH(return new AlternatingColorPatternBench(kOpaqueBitmap_ColorPattern,
188 kOpaqueBitmap_ColorPattern,
189 kRect_DrawType);)
190 DEF_BENCH(return new AlternatingColorPatternBench(kAlphaBitmap_ColorPattern,
191 kAlphaBitmap_ColorPattern,
192 kRect_DrawType);)
193 DEF_BENCH(return new AlternatingColorPatternBench(kOpaqueBitmap_ColorPattern,
194 kAlphaBitmap_ColorPattern,
195 kRect_DrawType);)
196