double scaleOffset = 1;//0.997;
public MainWindow()
{
dx11 = new DXWPF.D3D11();
dx11.SingleThreadedRender = true;
scene = new ImgScene()
{
Renderer = dx11
};
midiOutput = new OutputDevice(0);
InitializeComponent();
SourceInitialized += (s, e) =>
{
IntPtr handle = (new WindowInteropHelper(this)).Handle;
HwndSource.FromHwnd(handle).AddHook(new HwndSourceHook(WindowProc));
};
for (int i = 0; i < 128; i++)
{
var k = 127 - i;
DockPanel d = new DockPanel();
Grid key = new Grid();
key.SetBinding(Grid.WidthProperty, new Binding("ActualWidth")
{
Source = keyboardBox
});
Storyboard storyboard = new Storyboard();
if (isBlackNote(k))
{
Panel.SetZIndex(d, 10);
SolidColorBrush keycolbrush = new SolidColorBrush(Colors.Black);
var bord = new Border()
{
Background = keycolbrush, Margin = new Thickness(70, 0, 0, 0)
};
key.Children.Add(bord);
var keyCol = new ColorAnimation(Color.FromArgb(255, 0, 0, 250), Colors.Black, new Duration(TimeSpan.FromSeconds(0.5)));
storyboard.Children.Add(keyCol);
Storyboard.SetTarget(keyCol, bord);
Storyboard.SetTargetProperty(keyCol, new PropertyPath("(Border.Background).(SolidColorBrush.Color)"));
}
else
{
Panel.SetZIndex(d, 0);
SolidColorBrush keycolbrush = new SolidColorBrush(Colors.White);
var bord = new Border()
{
Background = keycolbrush, BorderBrush = Brushes.Black, BorderThickness = new Thickness(1)
};
key.Children.Add(bord);
var keyCol = new ColorAnimation(Color.FromArgb(255, 50, 50, 255), Colors.White, new Duration(TimeSpan.FromSeconds(0.5)));
storyboard.Children.Add(keyCol);
Storyboard.SetTarget(keyCol, bord);
Storyboard.SetTargetProperty(keyCol, new PropertyPath("(Border.Background).(SolidColorBrush.Color)"));
var n = k % 12;
Func <double, Thickness> conv = (v) => new Thickness(0);
if (n == 11)
{
conv = (v) => new Thickness(0, 0, 0, -v * 3 / 4);
}
if (n == 9)
{
conv = (v) => new Thickness(0, -v / 4, 0, -v / 2);
}
if (n == 7)
{
conv = (v) => new Thickness(0, -v / 2, 0, -v / 4);
}
if (n == 5)
{
conv = (v) => new Thickness(0, -v * 3 / 4, 0, 0);
}
if (n == 4)
{
conv = (v) => new Thickness(0, 0, 0, -v * 2 / 3);
}
if (n == 2)
{
conv = (v) => new Thickness(0, -v / 3, 0, -v / 3);
}
if (n == 0)
{
conv = (v) => new Thickness(0, -v * 2 / 3, 0, 0);
}
new InplaceConverter(new[] { new Binding("ActualHeight")
{
Source = d
} }, (args) => conv((double)args[0])).Set(key, MarginProperty);
}
SolidColorBrush linecolbrush = new SolidColorBrush(Colors.Transparent);
Border b = new Border()
{
BorderBrush = new SolidColorBrush(Color.FromArgb(50, 50, 50, 255)), BorderThickness = new Thickness(0, 1, 0, 1), Background = linecolbrush
};
var lineCol = new ColorAnimation(Color.FromArgb(50, 50, 50, 255), Colors.Transparent, new Duration(TimeSpan.FromSeconds(0.5)));
storyboard.Children.Add(lineCol);
Storyboard.SetTarget(lineCol, b);
Storyboard.SetTargetProperty(lineCol, new PropertyPath("(Border.Background).(SolidColorBrush.Color)"));
//var h = new DoubleAnimation(0, 20, new Duration(TimeSpan.FromSeconds(0.5)));
//storyboard.Children.Add(h);
//Storyboard.SetTarget(h, d);
//Storyboard.SetTargetProperty(h, new PropertyPath(HeightProperty));
keyPressAnimations.Add(storyboard);
d.Children.Add(key);
d.Children.Add(b);
d.SetBinding(HeightProperty, new Binding("LayerHeight")
{
Source = this
});
layersContainer.Children.Add(d);
d.Tag = k;
d.PreviewMouseDown += (s, e) =>
{
if (Keyboard.IsKeyDown(Key.LeftCtrl))
{
var pos = e.GetPosition(contentGrid);
var scaled = pos.X / contentGrid.ActualWidth * (scene.HorizontalScale.Right - scene.HorizontalScale.Left) + scene.HorizontalScale.Left;
scaled *= scaleOffset;
var finalPos = (long)(scaled * (fileReader.Length / fileReader.WaveFormat.Channels)) * fileReader.WaveFormat.Channels;
if (finalPos > fileReader.Length)
{
finalPos = fileReader.Length;
}
if (finalPos < 0)
{
finalPos = 0;
}
fileReader.Position = finalPos;
return;
}
PlayKey((int)d.Tag);
keyPressAnimations[127 - (int)d.Tag].Begin();
};
}
new InplaceConverter(new[] { new Binding("VerticalScale")
{
Source = this
}, new Binding("ActualHeight")
{
Source = containerGrid
} }, (b) =>
{
var scale = (VScale)b[0];
var height = scale.Bottom - scale.Top;
var layerHeight = (double)b[1] / height;
return(layerHeight);
}).Set(this, LayerHeightProperty);
new InplaceConverter(new[] { new Binding("VerticalScale")
{
Source = this
}, new Binding("ActualHeight")
{
Source = containerGrid
} }, (b) =>
{
var scale = (VScale)b[0];
var height = scale.Bottom - scale.Top;
var layerHeight = (double)b[1] / height;
var topMargin = LayerHeight * scale.Top;
return(new Thickness(0, -topMargin, 0, 0));
}).Set(layersContainer, MarginProperty);
imgRender.Renderer = scene;
string path;
var open = new OpenFileDialog();
open.Filter = "All Files|*.*";
if ((bool)open.ShowDialog())
{
path = open.FileName;
}
else
{
throw new Exception();
}
scene.LoadTexture(LoadSong(path));
var fr = new MediaFoundationDecoder(path);
MemoryStream cache = new MemoryStream();
fr.WriteToWaveStream(cache);
cache.Position = 0;
fileReader = new WaveFileReader(cache);
waveOut = GetSoundOut();
waveOut.Initialize(fileReader);
}
float[,] LoadSong(string path)
{
IWaveSource reader = new MediaFoundationDecoder(path);
var sampleRate = reader.WaveFormat.SampleRate;
reader = reader.ToMono();
MemoryStream cache = new MemoryStream();
reader.WriteToWaveStream(cache);
cache.Position = 0;
reader.Dispose();
reader = new WaveFileReader(cache);
var r = reader.ToSampleSource();
// Samples per key
var fftSamplesPerKey = 10;
// Width of the array
var fftWidth = 10000;
// Number of subdivisions in each sample group
// Higher = more precise
var precisionMultiplier = 5;
// Wavelengths in each sample
// Higher = more precise
var wavelengthsPerSample = 20;
var fftResultLen = 128 * fftSamplesPerKey;
int len = (int)(reader.Length / 2);
var result = new float[fftWidth, fftResultLen];
var datafull = new float[(int)len];
r.Read(datafull, 0, (int)len);
r.Dispose();
int progress = 0;
object lck = new object();
Stopwatch s = new Stopwatch();
s.Start();
Parallel.For(0, fftResultLen, i =>
{
float key = i / (float)fftSamplesPerKey - 0.5f / fftSamplesPerKey;
float freq = (float)Math.Pow(2, (key - 69 + 9 - 7 * 3 + 12 * 1) / 12) * 440;
int waveSize = (int)(sampleRate / freq) * wavelengthsPerSample;
double waveStep = (double)waveSize * fftWidth / len;
waveStep /= precisionMultiplier;
if (waveStep < 1)
{
waveStep = 1;
}
waveStep = waveStep / fftWidth * len;
if (waveSize < 1000)
{
waveSize = 1000;
}
for (double _l = 0; _l + waveSize < len; _l += waveStep)
{
var l = (int)_l;
float mult = freq / sampleRate * (float)Math.PI * 2;
float sum_r = 0;
float sum_i = 0;
for (int j = 0; j < waveSize; j++)
{
float a = mult * j + (float)Math.PI;
sum_r += (float)Math.Cos(a) * datafull[l + j];
sum_i += (float)Math.Sin(a) * datafull[l + j];
}
var val = (Math.Abs(sum_r) + Math.Abs(sum_i)) / waveSize;
int start = (int)((double)l * fftWidth / len);
int end = (int)((double)(l + waveSize) * fftWidth / len);
for (int p = start; p <= end; p++)
{
result[p, i] = val;
}
}
lock (lck)
{
Console.WriteLine("Processed frequency bands: " + (++progress));
}
});
Console.WriteLine("Complete! Seconds spent: " + Math.Round(s.ElapsedMilliseconds / 1000.0, 1));
return(result);
}
float[,] LoadSong(string path)
{
IWaveSource reader = new MediaFoundationDecoder(path);
var sampleRate = reader.WaveFormat.SampleRate;
reader = reader.ToMono();
MemoryStream cache = new MemoryStream();
reader.WriteToWaveStream(cache);
cache.Position = 0;
reader.Dispose();
reader = new WaveFileReader(cache);
var r = reader.ToSampleSource();
// Samples per key
var fftSamplesPerKey = 10;
// Width of the array
var fftWidth = 10000;
// Number of subdivisions in each sample group
// Higher = more precise
var precisionMultiplier = 5;
// Wavelengths in each sample
// Higher = more precise
var wavelengthsPerSample = 20;
var fftResultLen = 128 * fftSamplesPerKey;
int len = (int)(reader.Length / 2);
var result = new float[fftWidth, fftResultLen];
var datafull = new float[(int)len];
r.Read(datafull, 0, (int)len);
r.Dispose();
int progress = 0;
object lck = new object();
Stopwatch s = new Stopwatch();
s.Start();
unsafe
{
fixed(float *input_ptr = datafull)
{
float *output_ptr = (float *)CudaFFT.process_audio((IntPtr)input_ptr, (ulong)len, (uint)sampleRate);
ulong idx = 0;
for (int x = 0; x < fftWidth; x++)
{
for (int y = 0; y < fftResultLen; y++)
{
result[x, y] = output_ptr[idx++];
}
}
}
}
Console.WriteLine("Complete! Seconds spent: " + Math.Round(s.ElapsedMilliseconds / 1000.0, 1));
return(result);
}
