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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkGlyphCache.h"
#include "Benchmark.h"
#include "SkCanvas.h"
#include "SkStrikeCache.h"
#include "SkGraphics.h"
#include "SkTaskGroup.h"
#include "SkTypeface.h"
#include "sk_tool_utils.h"
static void do_font_stuff(SkPaint* paint) {
for (SkScalar i = 8; i < 64; i++) {
paint->setTextSize(i);
auto cache = SkStrikeCache::FindOrCreateStrikeExclusive(
*paint, nullptr, SkScalerContextFlags::kNone, nullptr);
uint16_t glyphs['z'];
for (int c = ' '; c < 'z'; c++) {
glyphs[c] = cache->unicharToGlyph(c);
}
for (int lookups = 0; lookups < 10; lookups++) {
for (int c = ' '; c < 'z'; c++) {
const SkGlyph& g = cache->getGlyphIDMetrics(glyphs[c]);
cache->findImage(g);
}
}
}
}
class SkGlyphCacheBasic : public Benchmark {
public:
explicit SkGlyphCacheBasic(size_t cacheSize) : fCacheSize(cacheSize) { }
protected:
const char* onGetName() override {
fName.printf("SkGlyphCacheBasic%dK", (int)(fCacheSize >> 10));
return fName.c_str();
}
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
void onDraw(int loops, SkCanvas*) override {
size_t oldCacheLimitSize = SkGraphics::GetFontCacheLimit();
SkGraphics::SetFontCacheLimit(fCacheSize);
SkPaint paint;
paint.setAntiAlias(true);
paint.setSubpixelText(true);
paint.setTypeface(sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Italic()));
for (int work = 0; work < loops; work++) {
do_font_stuff(&paint);
}
SkGraphics::SetFontCacheLimit(oldCacheLimitSize);
}
private:
typedef Benchmark INHERITED;
const size_t fCacheSize;
SkString fName;
};
class SkGlyphCacheStressTest : public Benchmark {
public:
explicit SkGlyphCacheStressTest(int cacheSize) : fCacheSize(cacheSize) { }
protected:
const char* onGetName() override {
fName.printf("SkGlyphCacheStressTest%dK", (int)(fCacheSize >> 10));
return fName.c_str();
}
bool isSuitableFor(Backend backend) override {
return backend == kNonRendering_Backend;
}
void onDraw(int loops, SkCanvas*) override {
size_t oldCacheLimitSize = SkGraphics::GetFontCacheLimit();
SkGraphics::SetFontCacheLimit(fCacheSize);
sk_sp<SkTypeface> typefaces[] =
{sk_tool_utils::create_portable_typeface("serif", SkFontStyle::Italic()),
sk_tool_utils::create_portable_typeface("sans-serif", SkFontStyle::Italic())};
for (int work = 0; work < loops; work++) {
SkTaskGroup().batch(16, [&](int threadIndex) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setSubpixelText(true);
paint.setTypeface(typefaces[threadIndex % 2]);
do_font_stuff(&paint);
});
}
SkGraphics::SetFontCacheLimit(oldCacheLimitSize);
}
private:
typedef Benchmark INHERITED;
const size_t fCacheSize;
SkString fName;
};
DEF_BENCH( return new SkGlyphCacheBasic(256 * 1024); )
DEF_BENCH( return new SkGlyphCacheBasic(32 * 1024 * 1024); )
DEF_BENCH( return new SkGlyphCacheStressTest(256 * 1024); )
DEF_BENCH( return new SkGlyphCacheStressTest(32 * 1024 * 1024); )
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