Универсальный код C# под .NET и JavaScript

GraphicsContext context;
try
{
	context = thread.GetContext();

#if SCRIPTSHARP
	PixelArray data = context.GetPixelArray();
#elif DOTNET
	byte* data = context.GetPixelArray();
#endif

	int dataLength = context.GetDataLength();
	byte[] redColorArray = thread.GetRedColorArray();
	byte[] greenColorArray = thread.GetGreenColorArray();
	byte[] blueColorArray = thread.GetBlueColorArray();
	for (int i = 0; i < dataLength; i += Const.PixelMaskInc)
	{
		data[i + Const.RedInc] = redColorArray[((byte)data[i + Const.RedInc])];
		data[i + Const.GreenInc] = greenColorArray[((byte)data[i + Const.GreenInc])];
		data[i + Const.BlueInc] = blueColorArray[((byte)data[i + Const.BlueInc])];
	}
}
finally
{
	if (context != null)
		context.PutImageData();
}

RedInc = 0; GreenInc = 1; BlueInc = 2; PixelInc = 4;

RedInc = 2; GreenInc = 0; BlueInc = 1; PixelInc = 4;