public void DrawWaveFormValues(float[] samples, int offset, int length)
{
if (samples == null || samples.Length == 0 ||
!dynTexture.IsInitialized)
{
return;
}
dynTexture.ClearTexture();
// Draw the waveform
for (int x = 0; x < dynTexture.TextureWidth; x++)
{
int sampleIndex = offset + length * x / dynTexture.TextureWidth;
if (sampleIndex >= samples.Length)
{
break;
}
float value = samples[sampleIndex];
// Draw the pixels
int y = (int)(dynTexture.TextureHeight * (value + 1f) / 2f);
dynTexture.SetPixel(x, y, waveformColor);
}
// upload to the graphics card
dynTexture.ApplyTexture();
}
private void DrawHorizontalGridLine(int midiNote, Color color)
{
int height = settings.SongEditorSettings.GridSizeInDevicePixels;
if (height <= 0)
{
return;
}
float yPercent = (float)noteAreaControl.GetVerticalPositionForMidiNote(midiNote);
int fromY = (int)(yPercent * dynamicTexture.TextureHeight);
int toY = fromY + height;
for (int x = 0; x < dynamicTexture.TextureWidth; x++)
{
for (int y = fromY; y < toY && y < dynamicTexture.TextureHeight; y++)
{
dynamicTexture.SetPixel(x, y, color);
}
}
}
