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calculate sleep time for slideshow interval more accurately

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This commit is contained in:
Daniel Sommer 2023-11-24 10:10:39 +01:00
parent 5d9b028c29
commit ff68336c1b
1 changed files with 4 additions and 4 deletions
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8
internal/slideshow/slideshow.go
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@ -21,9 +21,10 @@ var previousImage string
func Start() { func Start() {
loggo.Info("starting the image slideshow...", "interval: "+strconv.FormatFloat(config.Interval.Seconds(), 'f', 0, 64)+" seconds") loggo.Info("starting the image slideshow...", "interval: "+strconv.FormatFloat(config.Interval.Seconds(), 'f', 0, 64)+" seconds")
var sleepTime time.Duration var sleepTime time.Duration
var scaleTime time.Duration var loopTime time.Duration
scaleImages := config.IsResolutionSet() scaleImages := config.IsResolutionSet()
for { for {
loopTimestamp := time.Now()
var image string var image string
var palette []color.Color var palette []color.Color
var data []byte var data []byte
@ -34,18 +35,17 @@ func Start() {
} }
} }
if scaleImages { if scaleImages {
scaleTimestamp := time.Now()
tmp, error := scale(image) tmp, error := scale(image)
if error != nil { if error != nil {
loggo.Error("encountered an error scaling an image", "image: "+image, error.Error()) loggo.Error("encountered an error scaling an image", "image: "+image, error.Error())
continue continue
} }
data = tmp data = tmp
scaleTime = time.Since(scaleTimestamp)
palette, _ = getColorPaletteRaw(data) palette, _ = getColorPaletteRaw(data)
} else { } else {
palette, _ = getColorPalette(image) palette, _ = getColorPalette(image)
} }
loopTime = time.Since(loopTimestamp)
if sleepTime > 0 { if sleepTime > 0 {
loggo.Debug("sleeping for " + strconv.FormatInt(sleepTime.Milliseconds(), 10) + "ms before next image will be displayed...") loggo.Debug("sleeping for " + strconv.FormatInt(sleepTime.Milliseconds(), 10) + "ms before next image will be displayed...")
time.Sleep(sleepTime) time.Sleep(sleepTime)
@ -64,7 +64,7 @@ func Start() {
} }
loggo.Info("set new background image", "image: "+image) loggo.Info("set new background image", "image: "+image)
} }
sleepTime = config.Interval - scaleTime sleepTime = config.Interval - loopTime
} }
} }