public static Bitmap mkDef()
{
Bitmap def = new Bitmap(w, h);
BitmapPlus bp = new BitmapPlus(def);
bp.BeginAcces();
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
bp.SetPixel(x, y, BackGround);
}
}
for (int x = 0; x < w; x++)
{
bp.SetPixel(x, 100, Axiss);
}
for (int y = 75; y < 125; y++)
{
bp.SetPixel(100, y, Axiss);
bp.SetPixel(200, y, Axiss);
bp.SetPixel(300, y, Axiss);
}
bp.EndAccess();
return(def);
}
public static Bitmap testSine()
{
int vmax = 99;
Bitmap res = mkDef();
BitmapPlus bp = new BitmapPlus(res);
bp.BeginAcces();
for (int x = 0; x < w; x++)
{
int val = (int)(
(50.0 * Math.Sin(2.0 * Math.PI * (double)x / (double)w)) +
(50.0 * Math.Sin(8.0 * Math.PI * (double)x / (double)w)) +
(50.0 * Math.Sin(4.0 * Math.PI * (double)x / (double)w))
);
if (-vmax < val && val < vmax)
{
bp.SetPixel(x, val + 102, SubColor);
bp.SetPixel(x, val + 101, SubColor);
bp.SetPixel(x, val + 99, SubColor);
bp.SetPixel(x, val + 98, SubColor);
bp.SetPixel(x, val + 100, MainColor);
}
else if (val < -vmax)
{
val = -vmax;
bp.SetPixel(x, val + 101, SubColor);
bp.SetPixel(x, val + 100, MainColor);
}
else
{
val = vmax;
bp.SetPixel(x, val + 99, SubColor);
bp.SetPixel(x, val + 100, MainColor);
}
}
bp.EndAccess();
return(res);
}
public static Bitmap mkWave(
float sin1, float sin2, float sin3, float sin4,
float cos1, float cos2, float cos3, float cos4)
{
int vmax = Int16.MaxValue;
Bitmap res = mkDef();
BitmapPlus bp = new BitmapPlus(res);
bp.BeginAcces();
for (int x = 0; x < w; x++)
{
int val = (int)(
(vmax * sin1 * Math.Sin(2.0 * Math.PI * (double)x / (double)w)) +
(vmax * sin2 * Math.Sin(4.0 * Math.PI * (double)x / (double)w)) +
(vmax * sin3 * Math.Sin(6.0 * Math.PI * (double)x / (double)w)) +
(vmax * sin4 * Math.Sin(8.0 * Math.PI * (double)x / (double)w)) +
(vmax * cos1 * Math.Cos(2.0 * Math.PI * (double)x / (double)w)) +
(vmax * cos2 * Math.Cos(4.0 * Math.PI * (double)x / (double)w)) +
(vmax * cos3 * Math.Cos(6.0 * Math.PI * (double)x / (double)w)) +
(vmax * cos4 * Math.Cos(8.0 * Math.PI * (double)x / (double)w))
);
if (val < Int16.MinValue)
{
val = Int16.MinValue;
}
else if (Int16.MaxValue < val)
{
val = vmax;
}
int plotval = (-val * 99 / Int16.MaxValue) + 100;
bp.SetPixel(x, plotval, MainColor);
}
bp.EndAccess();
return(res);
}
public static Bitmap mkWave(SoundData sd)
{
int vmax = Int16.MaxValue;
Bitmap res = mkDef();
BitmapPlus bp = new BitmapPlus(res);
bp.BeginAcces();
for (int x = 0; x < w; x++)
{
int val = (int)(
(vmax * sd.sin1 * Math.Sin(2.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.sin2 * Math.Sin(4.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.sin3 * Math.Sin(6.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.sin4 * Math.Sin(8.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.sin8 * Math.Sin(16.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.cos1 * Math.Cos(2.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.cos2 * Math.Cos(4.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.cos3 * Math.Cos(6.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.cos4 * Math.Cos(8.0 * Math.PI * (double)x / (double)w)) +
(vmax * sd.cos8 * Math.Cos(16.0 * Math.PI * (double)x / (double)w))
);
#region ks1
if (x < 0.5 * w)
{
val += (int)(vmax * sd.ksin1);
}
else
{
val -= (int)(vmax * sd.ksin1);
}
#endregion
#region ks2
if (x < 0.25 * w)
{
val += (int)(vmax * sd.ksin2);
}
else if (x < 0.5 * w)
{
val -= (int)(vmax * sd.ksin2);
}
else if (x < 0.75 * w)
{
val += (int)(vmax * sd.ksin2);
}
else
{
val -= (int)(vmax * sd.ksin2);
}
#endregion
#region ks3
if (x < w / 6)
{
val += (int)(vmax * sd.ksin3);
}
else if (x < w / 3)
{
val -= (int)(vmax * sd.ksin3);
}
else if (x < w / 2)
{
val += (int)(vmax * sd.ksin3);
}
else if (x < 2 * w / 3)
{
val -= (int)(vmax * sd.ksin3);
}
else if (x < 5 * w / 6)
{
val += (int)(vmax * sd.ksin3);
}
else
{
val -= (int)(vmax * sd.ksin3);
}
#endregion
#region ks4
if (x < w * 0.125)
{
val += (int)(vmax * sd.ksin4);
}
else if (x < w * 0.25)
{
val -= (int)(vmax * sd.ksin4);
}
else if (x < w * 0.375)
{
val += (int)(vmax * sd.ksin4);
}
else if (x < w * 0.5)
{
val -= (int)(vmax * sd.ksin4);
}
else if (x < w * 0.625)
{
val += (int)(vmax * sd.ksin4);
}
else if (x < w * 0.75)
{
val -= (int)(vmax * sd.ksin4);
}
else if (x < w * 0.875)
{
val += (int)(vmax * sd.ksin4);
}
else
{
val -= (int)(vmax * sd.ksin4);
}
#endregion
if (val < Int16.MinValue)
{
val = Int16.MinValue;
}
else if (Int16.MaxValue < val)
{
val = vmax;
}
int plotval = (-val * 99 / Int16.MaxValue) + 100;
bp.SetPixel(x, plotval, MainColor);
}
bp.EndAccess();
return(res);
}