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loop: Fix FPS calculation

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This commit is contained in:
Hajime Hoshi 2017-07-13 00:18:46 +09:00
parent c3202b8e58
commit 0de9828e20
1 changed files with 4 additions and 3 deletions
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7
internal/loop/run.go
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@ -156,15 +156,16 @@ func (c *runContext) adjustedNowWithAudio() int64 {
func (c *runContext) render(g GraphicsContext) error {
fps := c.fps
clockN := now()
n := c.adjustedNowWithAudio()
defer func() {
// Calc the current FPS.
if time.Second > time.Duration(n-c.lastFPSUpdated) {
if time.Second > time.Duration(clockN-c.lastFPSUpdated) {
return
}
currentFPS := float64(c.frames) * float64(time.Second) / float64(n-c.lastFPSUpdated)
currentFPS := float64(c.frames) * float64(time.Second) / float64(clockN-c.lastFPSUpdated)
c.updateFPS(currentFPS)
c.lastFPSUpdated = n
c.lastFPSUpdated = clockN
c.frames = 0
}()