public void init(Image image)
{
width = image.Width;
height = image.Height;
_slices = new ImageSlice[width];
int _numSlices = width;
for (int x = 0; x < width; x++)
{
ImageSlice slice = new ImageSlice();
slice.init(image, x);
_slices[x] = slice;
red += slice.getAverageRed();
green += slice.getAverageGreen();
blue += slice.getAverageBlue();
hue += slice.getAverageHue();
sat += slice.getAverageSat();
val += slice.getAverageVal();
}
_averageRed = red / width;
_averageGreen = green / width;
_averageBlue = blue / width;
_averageHue = hue / width;
_averageSat = sat / width;
_averageVal = val / width;
sat = 0;
val = 0;
for (int x = 0; x < width; ++x)
{
ImageSlice slice = _slices[x];
float deltaSat = slice.getAverageSat() - _averageSat;
sat += deltaSat * deltaSat;
float deltaVal = slice.getAverageVal() - _averageVal;
val += deltaVal * deltaVal;
}
_deviationVal = (float)Math.Sqrt((val / (float)width) / 255.0);
_deviationSat = (float)Math.Sqrt((sat / (float)width) / 255.0);
}
private void updateSongNotes()
{
//ImageSlice slice = new ImageSlice();
//slice.init(image, 4);
updateChart();
float[] sliceAvArray = new float[songLength];
float[] filteredSliceAvArray = new float[songLength];
float[] ModifiedSliceAvArray = new float[songLength];
bool[] rests = new bool[songLength];
DrumsWrap drums = new DrumsWrap();
drums.bassNotes = new float[songLength];
drums.hihatNotes = new float[songLength];
drums.rideNotes = new float[songLength];
drums.snareNotes = new float[songLength];
drums.splashNotes = new float[songLength];
float[] melodyNotes = new float[songLength];
int prevSliceNumber = 0;
for (int i = 1; i < songLength + 1; i++)
{
int sliceBack;
int sliceNum = (int)(((i / (float)(songLength) * (imageprop.getNumSlices() - 1))));
ImageSlice slice = imageprop.getSlice(sliceNum);
ImageSlice filteredSlice = filteredimageprop.getSlice(sliceNum);
sliceBack = (int)(((i / (float)(songLength)) * (imageprop.getNumSlices()) - prevSliceNumber)) - 1;
////sliceBack = (int)((i * songLength) / (imageprop.getNumSlices() - prevSliceNumber) - 1);
Console.WriteLine("from slice" + (sliceNum - sliceBack) + "to" + sliceNum);
float sliceAv = 0;
float filteredSliceAv = 0;
int numOfLoops = 0;
for (int j = i; (j - i) < sliceBack; j++)
{
int sliceIndex = (int)(((i / (float)(songLength)) * (imageprop.getNumSlices() - 1)) - j);
slice = imageprop.getSlice(sliceIndex);
filteredSlice = filteredimageprop.getSlice(sliceIndex);
sliceAv += slice.getAverageVal();
filteredSliceAv += filteredSlice.getAverageVal();
numOfLoops++;
}
sliceAv /= numOfLoops;
filteredSliceAv /= numOfLoops;
i--; // to adjust for array
sliceAvArray[i] = sliceAv;
filteredSliceAvArray[i] = filteredSliceAv;
if (filteredSliceAvArray[i] > filteredimageprop.getAverageVal())
{
rests[i] = false;
}
else
{
rests[i] = true;
}
prevSliceNumber = sliceNum;
const float bassVolume = 0.6f;
const float hihatVolume = 0.6f;
const float rideVolume = 0.6f;
const float snareVolume = 0.6f;
const float splashVolume = 0.6f;
const float bassVariation = 0.5f;
const float hihatVariation = 0.5f;
const float rideVariation = 0.5f;
const float snareVariation = 0.5f;
const float splashVariation = 0.5f;
float change = (slice.getAverageSat() - imageprop.getAverageSat());
float splash = Math.Abs(change) > ((imageprop.getDeviationSat()) * 10) ? 1.0f : 0.0f;
switch (mode)
{
case playbackMode.rock:
drums.bassNotes[i] = i % 4 == 0 ? 1.0f : 0.0f;
//drums.hihatNotes[i] = [slice getAverageVal] < 60? 1.0f : 0.0f;
drums.hihatNotes[i] = 1;
drums.rideNotes[i] = 1 - drums.hihatNotes[i];
drums.snareNotes[i] = i % 4 == 2 ? 1.0f : 0.0f;
drums.splashNotes[i] = splash;
break;
case playbackMode.dance:
drums.bassNotes[i] = i % 2 == 0 ? 1.0f : 0.0f;
drums.hihatNotes[i] = i % 2 == 1 ? 1.0f : 0.0f;
drums.rideNotes[i] = 0.0f;
drums.snareNotes[i] = splash;
drums.splashNotes[i] = i % 4 == 3 ? 1.0f : 0.0f;
break;
default:
break;
}
if (drums.bassNotes[i] > 0)
{
drums.bassNotes[i] += -bassVariation / 2 - bassVariation * slice.getAverageRed() / 255.0f;
}
if (drums.hihatNotes[i] > 0)
{
drums.hihatNotes[i] += -hihatVariation / 2 + hihatVariation * slice.getAverageGreen() / 255.0f;
}
if (drums.rideNotes[i] > 0)
{
drums.rideNotes[i] += -rideVariation / 2 - rideVariation * slice.getAverageBlue() / 255.0f;
}
if (drums.snareNotes[i] > 0)
{
drums.snareNotes[i] += -rideVariation / 2 - snareVariation * slice.getAverageRed() / 255.0f;
}
if (drums.splashNotes[i] > 0)
{
drums.splashNotes[i] += -splashVariation / 2 - splashVariation * slice.getAverageGreen() / 255.0f;
}
drums.bassNotes[i] *= bassVolume;
drums.hihatNotes[i] *= hihatVolume;
drums.rideNotes[i] *= rideVolume;
drums.snareNotes[i] *= snareVolume;
drums.splashNotes[i] *= splashVolume;
i++;//readjust for array
}
//Gets Highest and lowest slices and maps to a range of 0 - 1
float lowSlice = 0;
float highSlice = 0;
for (int j = 0; j < songLength; j++)
{
if (sliceAvArray[j] < lowSlice || j == 0)
{
lowSlice = (float)sliceAvArray[j];
}
if (sliceAvArray[j] > highSlice || j == 0)
{
highSlice = (float)sliceAvArray[j];
}
}
for (int i = 0; i < songLength; i++)
{
sliceAvArray[i] = (sliceAvArray[i] - lowSlice) / (highSlice - lowSlice);
}
ModifiedSliceAvArray[0] = 0.5f;
for (int i = 0; i < songLength - 1; /*!-1 may be bug in obj c code*/ i++)
{
float step = sliceAvArray[i + 1] - sliceAvArray[i];
if (step > 0)
{
if (Math.Abs(step) < 0.01)
{
ModifiedSliceAvArray[i + 1] = step1 + ModifiedSliceAvArray[i];
}
else if (Math.Abs(step) < 0.05)
{
ModifiedSliceAvArray[i + 1] = step2 + ModifiedSliceAvArray[i];
}
else if (Math.Abs(step) < 0.1)
{
ModifiedSliceAvArray[i + 1] = step3 + ModifiedSliceAvArray[i];
}
else
{
ModifiedSliceAvArray[i + 1] = step4 + ModifiedSliceAvArray[i];
}
if (ModifiedSliceAvArray[i + 1] > 1.0 && i > 0)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i - 1];
}
else if (ModifiedSliceAvArray[i + 1] > 1.0)
{
ModifiedSliceAvArray[i + 1] = step1;
}
if (ModifiedSliceAvArray[i + 1] < 0.0 && i > 0)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i - 1];
}
else if (ModifiedSliceAvArray[i + 1] < 0.0)
{
ModifiedSliceAvArray[i + 1] = step1;
}
}
else
{
if (Math.Abs(step) < 0.01)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i];
}
else if (Math.Abs(step) < 0.05)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i] - step2;
}
else if (Math.Abs(step) < 0.1)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i] - step3;
}
else
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i] - step4;
}
if (ModifiedSliceAvArray[i + 1] > 1.0 && i > 0)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i - 1];
}
else if (ModifiedSliceAvArray[i + 1] > 1.0)
{
ModifiedSliceAvArray[i + 1] = step1;
}
if (ModifiedSliceAvArray[i + 1] < 0.0 && i > 0)
{
ModifiedSliceAvArray[i + 1] = ModifiedSliceAvArray[i - 1];
}
else if (ModifiedSliceAvArray[i + 1] < 0.0)
{
ModifiedSliceAvArray[i + 1] = step1;
}
}
}
for (int i = 0; i < songLength; i++)
{
//C Scale
float[] scale = { 0.5f, 0.56122f, 0.6299f, 0.6674f, 0.7491f, 0.8408f, 0.9438f, 1.0f, 1.1124f, 1.2600f, 1.3348f, 1.4983f, 1.684f, 1.8877f };
if (!rests[i])
{
melodyNotes[i] = getNote(scale, scale.Length, ModifiedSliceAvArray[i]);
}
else
{
melodyNotes[i] = 0;
}
}
SetupTrack(6, songLength, melodyNotes, drums);
}