| /* |
| * 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 "Benchmark.h" |
| #include "Resources.h" |
| #include "SkCanvas.h" |
| #include "SkFont.h" |
| #include "SkPaint.h" |
| #include "SkRandom.h" |
| #include "SkStream.h" |
| #include "SkString.h" |
| #include "SkTemplates.h" |
| #include "SkTextBlob.h" |
| #include "SkTypeface.h" |
| |
| #include "sk_tool_utils.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(sk_tool_utils::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), kUTF8_SkTextEncoding)); |
| fFont.textToGlyphs(text, strlen(text), kUTF8_SkTextEncoding, fGlyphs.begin(), fGlyphs.count()); |
| } |
| |
| sk_sp<SkTextBlob> makeBlob() { |
| const SkTextBlobBuilder::RunBuffer& run = |
| fBuilder.allocRunPosH(fFont, fGlyphs.count(), 10, nullptr); |
| for (int i = 0; i < fGlyphs.count(); i++) { |
| run.glyphs[i] = fGlyphs[i]; |
| run. pos[i] = (i+1) * 10.125; |
| } |
| return fBuilder.make(); |
| } |
| |
| private: |
| SkTextBlobBuilder fBuilder; |
| SkFont fFont; |
| SkTDArray<uint16_t> fGlyphs; |
| |
| 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); |
| } |
| } |
| }; |
| |
| 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 TextBlobCachedBench(); ) |
| DEF_BENCH( return new TextBlobFirstTimeBench(); ) |