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