static void Clear32Bpp(IAsyncContext context, IBitmapDataInternal bitmapData, Color32 color, int width)
{
int longWidth = bitmapData.RowSize >> 3;
// writing as longs
if (longWidth > 0)
{
Color32 rawColor = bitmapData.PixelFormat switch
{
PixelFormat.Format32bppPArgb => color.ToPremultiplied(),
PixelFormat.Format32bppRgb => color.BlendWithBackground(bitmapData.BackColor),
_ => color,
};
uint argb = (uint)rawColor.ToArgb();
ClearRaw(context, bitmapData, longWidth, ((ulong)argb << 32) | argb);
}
// handling the rest (can be either the last column if width is odd, or even the whole content if RowSize is 0)
int left = longWidth << 1;
if (left < width && !context.IsCancellationRequested)
{
ClearDirectFallback(context, bitmapData, color, left);
}
}
public override unsafe void DoSetColor32(int x, Color32 c) => ((Color32 *)Address)[x] = c.ToPremultiplied();