mth/ebiten
1
0
Fork 0
mirror of https://github.com/hajimehoshi/ebiten.git synced 2025-01-11 19:48:54 +01:00
Code Issues Packages Projects Releases Wiki Activity

clock: Avoid calling (js.Value).Get() for performance

Browse Source
This commit is contained in:
Hajime Hoshi 2019-09-28 01:47:40 +09:00
parent 9bb96a4012
commit 7bb2895415
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
internal/clock/now_js.go
View File

@ -21,10 +21,15 @@ import (
"time" "time"
) )
var (
jsPerformance = js.Global().Get("performance")
jsNow = jsPerformance.Get("now").Call("bind", jsPerformance)
)
func now() int64 { func now() int64 {
// time.Now() is not reliable until GopherJS supports performance.now(). // time.Now() is not reliable until GopherJS supports performance.now().
// //
// performance.now is monotonic: // performance.now is monotonic:
// https://www.w3.org/TR/hr-time-2/#sec-monotonic-clock // https://www.w3.org/TR/hr-time-2/#sec-monotonic-clock
return int64(js.Global().Get("performance").Call("now").Float() * float64(time.Millisecond)) return int64(jsNow.Invoke().Float() * float64(time.Millisecond))
} }