60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
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// Copyright 2012 The Freetype-Go Authors. All rights reserved.
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// Use of this source code is governed by your choice of either the
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// FreeType License or the GNU General Public License version 2 (or
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// any later version), both of which can be found in the LICENSE file.
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package freetype
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import (
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"image"
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"image/draw"
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"io/ioutil"
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"runtime"
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"strings"
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"testing"
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)
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func BenchmarkDrawString(b *testing.B) {
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data, err := ioutil.ReadFile("../licenses/gpl.txt")
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if err != nil {
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b.Fatal(err)
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}
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lines := strings.Split(string(data), "\n")
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data, err = ioutil.ReadFile("../luxi-fonts/luxisr.ttf")
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if err != nil {
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b.Fatal(err)
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}
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font, err := ParseFont(data)
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if err != nil {
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b.Fatal(err)
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}
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dst := image.NewRGBA(image.Rect(0, 0, 800, 600))
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draw.Draw(dst, dst.Bounds(), image.White, image.ZP, draw.Src)
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c := NewContext()
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c.SetDst(dst)
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c.SetClip(dst.Bounds())
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c.SetSrc(image.Black)
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c.SetFont(font)
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var ms runtime.MemStats
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runtime.ReadMemStats(&ms)
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mallocs := ms.Mallocs
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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for j, line := range lines {
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_, err := c.DrawString(line, Pt(0, (j*16)%600))
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if err != nil {
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b.Fatal(err)
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}
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}
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}
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b.StopTimer()
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runtime.ReadMemStats(&ms)
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mallocs = ms.Mallocs - mallocs
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b.Logf("%d iterations, %d mallocs per iteration\n", b.N, int(mallocs)/b.N)
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}
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