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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 "src/core/SkScalerCache.h"
#include "bench/Benchmark.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkGraphics.h"
#include "include/core/SkTypeface.h"
#include "src/core/SkRemoteGlyphCache.h"
#include "src/core/SkStrikeCache.h"
#include "src/core/SkStrikeSpec.h"
#include "src/core/SkTaskGroup.h"
#include "src/core/SkTextBlobTrace.h"
#include "tools/Resources.h"
#include "tools/ToolUtils.h"
static void do_font_stuff(SkFont* font) {
SkPaint defaultPaint;
for (SkScalar i = 8; i < 64; i++) {
font->setSize(i);
auto strikeSpec = SkStrikeSpec::MakeMask(
*font, defaultPaint, SkSurfaceProps(0, kUnknown_SkPixelGeometry),
SkScalerContextFlags::kNone, SkMatrix::I());
SkPackedGlyphID glyphs['z'];
for (int c = ' '; c < 'z'; c++) {
glyphs[c] = SkPackedGlyphID{font->unicharToGlyph(c)};
}
constexpr size_t glyphCount = 'z' - ' ';
SkSpan<const SkPackedGlyphID> glyphIDs{&glyphs[SkTo<int>(' ')], glyphCount};
SkBulkGlyphMetricsAndImages images{strikeSpec};
for (int lookups = 0; lookups < 10; lookups++) {
(void)images.glyphs(glyphIDs);
}
}
}
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);
SkFont font;
font.setEdging(SkFont::Edging::kAntiAlias);
font.setSubpixel(true);
font.setTypeface(ToolUtils::create_portable_typeface("serif", SkFontStyle::Italic()));
for (int work = 0; work < loops; work++) {
do_font_stuff(&font);
}
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[] = {
ToolUtils::create_portable_typeface("serif", SkFontStyle::Italic()),
ToolUtils::create_portable_typeface("sans-serif", SkFontStyle::Italic())};
for (int work = 0; work < loops; work++) {
SkTaskGroup().batch(16, [&](int threadIndex) {
SkFont font;
font.setEdging(SkFont::Edging::kAntiAlias);
font.setSubpixel(true);
font.setTypeface(typefaces[threadIndex % 2]);
do_font_stuff(&font);
});
}
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); )
namespace {
class DiscardableManager : public SkStrikeServer::DiscardableHandleManager,
public SkStrikeClient::DiscardableHandleManager {
public:
DiscardableManager() { sk_bzero(&fCacheMissCount, sizeof(fCacheMissCount)); }
~DiscardableManager() override = default;
// Server implementation.
SkDiscardableHandleId createHandle() override {
SkAutoMutexExclusive l(fMutex);
// Handles starts as locked.
fLockedHandles.add(++fNextHandleId);
return fNextHandleId;
}
bool lockHandle(SkDiscardableHandleId id) override {
SkAutoMutexExclusive l(fMutex);
if (id <= fLastDeletedHandleId) return false;
fLockedHandles.add(id);
return true;
}
// Client implementation.
bool deleteHandle(SkDiscardableHandleId id) override {
SkAutoMutexExclusive l(fMutex);
return id <= fLastDeletedHandleId;
}
void notifyCacheMiss(SkStrikeClient::CacheMissType type) override {
SkAutoMutexExclusive l(fMutex);
fCacheMissCount[type]++;
}
bool isHandleDeleted(SkDiscardableHandleId id) override {
SkAutoMutexExclusive l(fMutex);
return id <= fLastDeletedHandleId;
}
void unlockAll() {
SkAutoMutexExclusive l(fMutex);
fLockedHandles.reset();
}
void unlockAndDeleteAll() {
SkAutoMutexExclusive l(fMutex);
fLockedHandles.reset();
fLastDeletedHandleId = fNextHandleId;
}
const SkTHashSet<SkDiscardableHandleId>& lockedHandles() const {
SkAutoMutexExclusive l(fMutex);
return fLockedHandles;
}
SkDiscardableHandleId handleCount() {
SkAutoMutexExclusive l(fMutex);
return fNextHandleId;
}
int cacheMissCount(uint32_t type) {
SkAutoMutexExclusive l(fMutex);
return fCacheMissCount[type];
}
bool hasCacheMiss() const {
SkAutoMutexExclusive l(fMutex);
for (uint32_t i = 0; i <= SkStrikeClient::CacheMissType::kLast; ++i) {
if (fCacheMissCount[i] > 0) return true;
}
return false;
}
void resetCacheMissCounts() {
SkAutoMutexExclusive l(fMutex);
sk_bzero(&fCacheMissCount, sizeof(fCacheMissCount));
}
private:
// The tests below run in parallel on multiple threads and use the same
// process global SkStrikeCache. So the implementation needs to be
// thread-safe.
mutable SkMutex fMutex;
SkDiscardableHandleId fNextHandleId = 0u;
SkDiscardableHandleId fLastDeletedHandleId = 0u;
SkTHashSet<SkDiscardableHandleId> fLockedHandles;
int fCacheMissCount[SkStrikeClient::CacheMissType::kLast + 1u];
};
class DiffCanvasBench : public Benchmark {
SkString fBenchName;
std::function<std::unique_ptr<SkStreamAsset>()> fDataProvider;
std::vector<SkTextBlobTrace::Record> fTrace;
sk_sp<DiscardableManager> fDiscardableManager;
SkTLazy<SkStrikeServer> fServer;
const char* onGetName() override { return fBenchName.c_str(); }
bool isSuitableFor(Backend b) override { return b == kNonRendering_Backend; }
void onDraw(int loops, SkCanvas*) override {
const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
SkTextBlobCacheDiffCanvas canvas{1024, 1024, props, fServer.get()};
loops *= 100;
while (loops --> 0) {
for (const auto& record : fTrace) {
canvas.drawTextBlob(
record.blob.get(), record.offset.x(), record.offset.y(),record.paint);
}
}
}
void onDelayedSetup() override {
auto stream = fDataProvider();
fDiscardableManager = sk_make_sp<DiscardableManager>();
fServer.init(fDiscardableManager.get());
fTrace = SkTextBlobTrace::CreateBlobTrace(stream.get());
}
public:
DiffCanvasBench(SkString n, std::function<std::unique_ptr<SkStreamAsset>()> f)
: fBenchName(std::move(n)), fDataProvider(std::move(f)) {}
};
} // namespace
Benchmark* CreateDiffCanvasBench(
SkString name, std::function<std::unique_ptr<SkStreamAsset>()> dataSrc) {
return new DiffCanvasBench(std::move(name), std::move(dataSrc));
}
DEF_BENCH( return CreateDiffCanvasBench(
SkString("SkDiffBench-lorem_ipsum"),
[](){ return GetResourceAsStream("diff_canvas_traces/lorem_ipsum.trace"); }));