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 #include "Benchmark.h" 9 #include "Resources.h" 10 #include "SkCanvas.h" 11 #include "SkPaint.h" 12 #include "SkRandom.h" 13 #include "SkStream.h" 14 #include "SkString.h" 15 #include "SkTemplates.h" 16 #include "SkTextBlob.h" 17 #include "SkTypeface.h" 18 19 #include "sk_tool_utils.h" 20 21 /* 22 * A trivial test which benchmarks the performance of a textblob with a single run. 23 */ 24 class TextBlobBench : public Benchmark { 25 public: TextBlobBench()26 TextBlobBench() {} 27 28 protected: onDelayedSetup()29 void onDelayedSetup() override { 30 fTypeface = sk_tool_utils::create_portable_typeface("serif", SkFontStyle()); 31 // make textblob 32 SkPaint paint; 33 paint.setTypeface(fTypeface); 34 const char* text = "Hello blob!"; 35 SkTDArray<uint16_t> glyphs; 36 size_t len = strlen(text); 37 glyphs.append(paint.textToGlyphs(text, len, nullptr)); 38 paint.textToGlyphs(text, len, glyphs.begin()); 39 40 SkTextBlobBuilder builder; 41 42 paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); 43 const SkTextBlobBuilder::RunBuffer& run = builder.allocRun(paint, glyphs.count(), 10, 10, 44 nullptr); 45 memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t)); 46 47 fBlob = builder.make(); 48 } 49 onGetName()50 const char* onGetName() override { 51 return "TextBlobBench"; 52 } 53 onDraw(int loops,SkCanvas * canvas)54 void onDraw(int loops, SkCanvas* canvas) override { 55 SkPaint paint; 56 57 // To ensure maximum caching, we just redraw the blob at the same place everytime 58 for (int i = 0; i < loops; i++) { 59 canvas->drawTextBlob(fBlob, 0, 0, paint); 60 } 61 } 62 63 private: 64 65 sk_sp<SkTextBlob> fBlob; 66 SkTDArray<uint16_t> fGlyphs; 67 sk_sp<SkTypeface> fTypeface; 68 69 typedef Benchmark INHERITED; 70 }; 71 72 DEF_BENCH( return new TextBlobBench(); ) 73