72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
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/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Benchmark.h"
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#include "Resources.h"
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#include "SkCanvas.h"
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#include "SkPaint.h"
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#include "SkRandom.h"
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#include "SkStream.h"
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#include "SkString.h"
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#include "SkTemplates.h"
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#include "SkTextBlob.h"
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#include "SkTypeface.h"
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#include "sk_tool_utils.h"
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/*
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* A trivial test which benchmarks the performance of a textblob with a single run.
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*/
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class TextBlobBench : public Benchmark {
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public:
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TextBlobBench()
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: fTypeface(sk_tool_utils::create_portable_typeface("Times", SkTypeface::kNormal)) {
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// make textblob
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SkPaint paint;
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paint.setTypeface(fTypeface);
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const char* text = "Hello blob!";
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SkTDArray<uint16_t> glyphs;
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size_t len = strlen(text);
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glyphs.append(paint.textToGlyphs(text, len, NULL));
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paint.textToGlyphs(text, len, glyphs.begin());
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SkTextBlobBuilder builder;
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paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding);
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const SkTextBlobBuilder::RunBuffer& run = builder.allocRun(paint, glyphs.count(), 10, 10,
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NULL);
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memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t));
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fBlob.reset(builder.build());
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}
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protected:
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const char* onGetName() {
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return "TextBlobBench";
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}
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void onDraw(const int loops, SkCanvas* canvas) {
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SkPaint paint;
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// To ensure maximum caching, we just redraw the blob at the same place everytime
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for (int i = 0; i < loops; i++) {
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canvas->drawTextBlob(fBlob, 0, 0, paint);
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}
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}
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private:
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SkAutoTUnref<const SkTextBlob> fBlob;
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SkTDArray<uint16_t> fGlyphs;
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SkAutoTUnref<SkTypeface> fTypeface;
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typedef Benchmark INHERITED;
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};
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DEF_BENCH( return new TextBlobBench(); )
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