private static AverageColour GetSectionLED(ScreenSectionReadingRequest request)
{
var totals = new long[] { 0, 0, 0 };
var heightLimit = request.EndY * request.Stride;
var widthLimit = request.EndX * request.BPPModifier;
var pixelCount = 0;
unsafe
{
var p = (byte *)(void *)request.ScreenPointer;
for (var y = request.StartY * request.Stride; y < heightLimit; y += request.Stride)
{
for (var x = request.StartX * request.BPPModifier; x < widthLimit; x += request.BPPModifier)
{
for (var color = 0; color < 3; color++)
{
var idx = y + x + color;
totals[color] += p[idx];
}
pixelCount++;
}
}
}
return(new AverageColour
{
AverageB = GetAverageColour(totals[0], pixelCount),
AverageG = GetAverageColour(totals[1], pixelCount),
AverageR = GetAverageColour(totals[2], pixelCount)
});
}
private static Task <AverageColour> GetSectionReading(ScreenSectionReadingRequest sectionRequest)
{
return(Task.Run(() => GetSectionLED(sectionRequest)));
}
