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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 "bench/Benchmark.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkFont.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkStream.h"
- #include "include/core/SkString.h"
- #include "include/core/SkTextBlob.h"
- #include "include/core/SkTypeface.h"
- #include "include/private/SkTemplates.h"
- #include "include/utils/SkRandom.h"
- #include "tools/Resources.h"
- #include "tools/ToolUtils.h"
- /*
- * A trivial test which benchmarks the performance of a textblob with a single run.
- */
- class SkTextBlobBench : public Benchmark {
- public:
- SkTextBlobBench() {}
- void onDelayedSetup() override {
- fFont.setTypeface(ToolUtils::create_portable_typeface("serif", SkFontStyle()));
- fFont.setSubpixel(true);
- // This text seems representative in both length and letter frequency.
- const char* text = "Keep your sentences short, but not overly so.";
- fGlyphs.setCount(fFont.countText(text, strlen(text), SkTextEncoding::kUTF8));
- fXPos.setCount(fGlyphs.count());
- fFont.textToGlyphs(text, strlen(text), SkTextEncoding::kUTF8, fGlyphs.begin(), fGlyphs.count());
- fFont.getXPos(&fGlyphs[0], fGlyphs.count(), fXPos.begin());
- }
- sk_sp<SkTextBlob> makeBlob() {
- const SkTextBlobBuilder::RunBuffer& run =
- fBuilder.allocRunPosH(fFont, fGlyphs.count(), 10, nullptr);
- memcpy(run.glyphs, &fGlyphs[0], fGlyphs.count() * sizeof(uint16_t));
- memcpy(run.pos, &fXPos[0], fXPos.count() * sizeof(SkScalar));
- return fBuilder.make();
- }
- private:
- SkTextBlobBuilder fBuilder;
- SkFont fFont;
- SkTDArray<uint16_t> fGlyphs;
- SkTDArray<SkScalar> fXPos;
- typedef Benchmark INHERITED;
- };
- class TextBlobCachedBench : public SkTextBlobBench {
- const char* onGetName() override {
- return "TextBlobCachedBench";
- }
- void onDraw(int loops, SkCanvas* canvas) override {
- SkPaint paint;
- auto blob = this->makeBlob();
- auto bigLoops = loops * 100;
- for (int i = 0; i < bigLoops; i++) {
- // To ensure maximum caching, we just redraw the blob at the same place everytime
- canvas->drawTextBlob(blob, 0, 0, paint);
- }
- }
- };
- DEF_BENCH( return new TextBlobCachedBench(); )
- class TextBlobFirstTimeBench : public SkTextBlobBench {
- const char* onGetName() override {
- return "TextBlobFirstTimeBench";
- }
- void onDraw(int loops, SkCanvas* canvas) override {
- SkPaint paint;
- auto bigLoops = loops * 100;
- for (int i = 0; i < bigLoops; i++) {
- canvas->drawTextBlob(this->makeBlob(), 0, 0, paint);
- }
- }
- };
- DEF_BENCH( return new TextBlobFirstTimeBench(); )
- class TextBlobMakeBench : public SkTextBlobBench {
- const char* onGetName() override {
- return "TextBlobMakeBench";
- }
- bool isSuitableFor(Backend backend) override {
- return backend == kNonRendering_Backend;
- }
- void onDraw(int loops, SkCanvas*) override {
- for (int i = 0; i < loops; i++) {
- for (int inner = 0; inner < 1000; ++inner) {
- this->makeBlob();
- }
- }
- }
- };
- DEF_BENCH( return new TextBlobMakeBench(); )
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