public static unsafe Bitmap ToBitmap(
this IReadOnlyPixelBuffer pixels,
Rectangle?sourceRectangle = null)
{
var srcRect = sourceRectangle ?? pixels.GetBounds();
ImagingArgumentGuard.AssertRectangleInSource(pixels, srcRect, nameof(sourceRectangle));
var srcType = pixels.PixelType;
var dstType = VectorType.Get <Bgra32>();
var convertPixels = Imaging.Image.GetConvertPixelsDelegate(srcType, dstType);
int width = srcRect.Width;
int height = srcRect.Height;
var bitmap = new Bitmap(width, height, PixelFormat.Format32bppArgb);
var bmpRect = new System.Drawing.Rectangle(0, 0, width, height);
var bmpData = bitmap.LockBits(bmpRect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
try
{
for (int y = 0; y < bmpData.Height; y++)
{
int srcX = srcRect.X;
int srcY = srcRect.Y + y;
int dstX = 0;
int dstY = y;
var dstPtr = (byte *)bmpData.Scan0 + dstY * bmpData.Stride;
var srcRow = pixels.GetPixelByteRowSpan(srcY)[srcX..];
internal static bool CheckBounds(this IReadOnlyPixelRowsContext context, Rectangle sourceRectangle)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (context.Pixels.GetBounds() == sourceRectangle)
{
return(true);
}
ImagingArgumentGuard.AssertRectangleInSource(context, sourceRectangle, nameof(sourceRectangle));
return(false);
}