protected override void Render(RenderContext context)
{
var backBuffer = context.BackBuffer;
var height = context.Height;
var width = context.Width;
var waveForm = PlayerService.GetWaveform(waveformLength.Value).Transform <float>(x => x > 1 ? 1 : x < -1 ? -1 : x);
var xStep = width / (double)waveForm.Length;
var halfHeight = height * 0.5d;
var subLineStep = 1d / waveForm.Length;
var pal = palette.AsFrozen();
for (var i = 1; i < waveForm.Length; ++i)
{
var x1 = (i - 1) * xStep;
var x2 = i * xStep;
var y1 = (halfHeight) * waveForm[i - 1];
var y2 = (halfHeight) * waveForm[i];
var sample = ((double)i / waveForm.Length + paletteOffset);
backBuffer.DrawLineVector(new VectorD(x1, (height - halfHeight) - y1), new VectorD(x2, (height - halfHeight) - y2),
(d, d1, position) => pal.GetColour(sample + position * subLineStep),
width, height);
}
}