func main() {
oOlliImage := olliImage.NewImage(256, 256)
for iX := 0; iX < oOlliImage.Width(); iX++ {
for iY := 0; iY < oOlliImage.Height(); iY++ {
oOlliImage.DrawPoint(iX, iY, olliImage.NewColor(iX, iY, (iX+iY/2), 255))
}
}
oOlliImage.SaveAsPNG("test.png")
}
func drawSound(oImage *image.Image, aSound *[]float32, iSoundStart int, nCompression float32) {
if int(float32(iSoundStart)/nCompression) > oImage.Width() {
return
}
for iSampleNr, nSampleValue := range *aSound {
iAt := iSoundStart + iSampleNr
iImageAt := int(float32(iAt) / nCompression)
if iImageAt >= oImage.Width() {
oImage.SaveAsPNG("sound.png")
break
}
oImage.DrawPoint(iImageAt, 100+int(100.0*nSampleValue), image.NewColor(0, 0, 0, 255))
}
}
func main() {
aArgs := base.GetArgs(map[string]int{})
sCurrentDir, _ := os.Getwd()
base.Dump(aArgs)
base.Dump(sCurrentDir)
oStream := audio.NewStream()
var iSampleRate = 44100
var oRand = rand.New(rand.NewSource(time.Now().Unix()))
var cSamplesWritten = oStream.Start(iSampleRate, time.Duration(100)*time.Millisecond)
defer oStream.Stop()
var oStartTime = time.Now()
//var iCooldownSamples = iSampleRate * 44 / 100;
//var oCooldownDuration = (1000 * time.Duration(iCooldownSamples) / time.Duration(iSampleRate)) * time.Millisecond;
var sDuration = "1h"
if len(aArgs[""]) > 0 {
sDuration = aArgs[""][0]
}
var oDuration, errParse = time.ParseDuration(sDuration)
if errParse != nil {
oDuration = time.Duration(60) * time.Minute
}
base.Dump(oDuration)
var oImage = image.NewImage(20000, 200)
oImage.FillRect(0, 0, oImage.Width(), oImage.Height(), image.NewColor(255, 255, 255, 255))
oImage.DrawPoint(10, 10, image.NewColor(255, 0, 0, 255))
var iNextPlayStart = 0
for {
var iSamplesWritten = <-cSamplesWritten
if iSamplesWritten > iNextPlayStart-5*iSampleRate {
base.Dump(time.Now())
var aSound = SoundA(iSampleRate, time.Duration(2)*time.Second/time.Duration(8), 16, 32)
for iKey := range aSound {
var nWavePart = float64(iKey) / float64(len(aSound))
var nVolume = 0.75 + 0.25*float32(math.Sin(math.Pi*nWavePart))
//nVolume = float32(1.0);
aSound[iKey] = nVolume * aSound[iKey]
}
// for iS := 0; iS < len(aSound); iS ++ {}
if true || oRand.Intn(32) > 0 {
oStream.Play(iNextPlayStart, &aSound)
drawSound(oImage, &aSound, iNextPlayStart, 8)
}
iNextPlayStart += len(aSound)
}
var oTimePassed = time.Now().Sub(oStartTime)
if oTimePassed > oDuration {
break
}
time.Sleep(time.Duration(50) * time.Millisecond)
}
/*oStream.Play(0, aSound);
oStream.Play(0, aSound);*/
/*for {
//aSound = []float32{-1, -1, -1, -1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1};
//base.Dump("play");
//oStream.PlayNow(aSound);
time.Sleep(time.Duration(500) * time.Millisecond);
}*/
time.Sleep(time.Second)
}