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