1 /*
2 * Copyright 2015 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
9 #include "SkStrike.h"
10
11 #include "Benchmark.h"
12 #include "SkCanvas.h"
13 #include "SkStrikeCache.h"
14 #include "SkGraphics.h"
15 #include "SkTaskGroup.h"
16 #include "SkTypeface.h"
17 #include "sk_tool_utils.h"
18
19
do_font_stuff(SkFont * font)20 static void do_font_stuff(SkFont* font) {
21 SkPaint defaultPaint;
22 for (SkScalar i = 8; i < 64; i++) {
23 font->setSize(i);
24 auto cache = SkStrikeCache::FindOrCreateStrikeExclusive(
25 *font, defaultPaint, SkSurfaceProps(0, kUnknown_SkPixelGeometry),
26 SkScalerContextFlags::kNone, SkMatrix::I());
27 uint16_t glyphs['z'];
28 for (int c = ' '; c < 'z'; c++) {
29 glyphs[c] = font->unicharToGlyph(c);
30 }
31 for (int lookups = 0; lookups < 10; lookups++) {
32 for (int c = ' '; c < 'z'; c++) {
33 const SkGlyph& g = cache->getGlyphIDMetrics(glyphs[c]);
34 cache->findImage(g);
35 }
36 }
37
38 }
39 }
40
41 class SkGlyphCacheBasic : public Benchmark {
42 public:
SkGlyphCacheBasic(size_t cacheSize)43 explicit SkGlyphCacheBasic(size_t cacheSize) : fCacheSize(cacheSize) { }
44
45 protected:
onGetName()46 const char* onGetName() override {
47 fName.printf("SkGlyphCacheBasic%dK", (int)(fCacheSize >> 10));
48 return fName.c_str();
49 }
50
isSuitableFor(Backend backend)51 bool isSuitableFor(Backend backend) override {
52 return backend == kNonRendering_Backend;
53 }
54
onDraw(int loops,SkCanvas *)55 void onDraw(int loops, SkCanvas*) override {
56 size_t oldCacheLimitSize = SkGraphics::GetFontCacheLimit();
57 SkGraphics::SetFontCacheLimit(fCacheSize);
58 SkFont font;
59 font.setEdging(SkFont::Edging::kAntiAlias);
60 font.setSubpixel(true);
61 font.setTypeface(sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Italic()));
62
63 for (int work = 0; work < loops; work++) {
64 do_font_stuff(&font);
65 }
66 SkGraphics::SetFontCacheLimit(oldCacheLimitSize);
67 }
68
69 private:
70 typedef Benchmark INHERITED;
71 const size_t fCacheSize;
72 SkString fName;
73 };
74
75 class SkGlyphCacheStressTest : public Benchmark {
76 public:
SkGlyphCacheStressTest(int cacheSize)77 explicit SkGlyphCacheStressTest(int cacheSize) : fCacheSize(cacheSize) { }
78
79 protected:
onGetName()80 const char* onGetName() override {
81 fName.printf("SkGlyphCacheStressTest%dK", (int)(fCacheSize >> 10));
82 return fName.c_str();
83 }
84
isSuitableFor(Backend backend)85 bool isSuitableFor(Backend backend) override {
86 return backend == kNonRendering_Backend;
87 }
88
onDraw(int loops,SkCanvas *)89 void onDraw(int loops, SkCanvas*) override {
90 size_t oldCacheLimitSize = SkGraphics::GetFontCacheLimit();
91 SkGraphics::SetFontCacheLimit(fCacheSize);
92 sk_sp<SkTypeface> typefaces[] =
93 {sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Italic()),
94 sk_tool_utils::create_portable_typeface("sans-serif", SkFontStyle::Italic())};
95
96 for (int work = 0; work < loops; work++) {
97 SkTaskGroup().batch(16, [&](int threadIndex) {
98 SkFont font;
99 font.setEdging(SkFont::Edging::kAntiAlias);
100 font.setSubpixel(true);
101 font.setTypeface(typefaces[threadIndex % 2]);
102 do_font_stuff(&font);
103 });
104 }
105 SkGraphics::SetFontCacheLimit(oldCacheLimitSize);
106 }
107
108 private:
109 typedef Benchmark INHERITED;
110 const size_t fCacheSize;
111 SkString fName;
112 };
113
114 DEF_BENCH( return new SkGlyphCacheBasic(256 * 1024); )
115 DEF_BENCH( return new SkGlyphCacheBasic(32 * 1024 * 1024); )
116 DEF_BENCH( return new SkGlyphCacheStressTest(256 * 1024); )
117 DEF_BENCH( return new SkGlyphCacheStressTest(32 * 1024 * 1024); )
118