internal static unsafe System.Drawing.Bitmap ToSystemDrawingBitmap <TPixel>(Image <TPixel> image)
where TPixel : struct, IPixel <TPixel>
{
int w = image.Width;
int h = image.Height;
var resultBitmap = new System.Drawing.Bitmap(w, h, PixelFormat.Format32bppArgb);
var fullRect = new System.Drawing.Rectangle(0, 0, w, h);
BitmapData data = resultBitmap.LockBits(fullRect, ImageLockMode.ReadWrite, resultBitmap.PixelFormat);
byte * destPtrBase = (byte *)data.Scan0;
long destRowByteCount = data.Stride;
long sourceRowByteCount = w * sizeof(Bgra32);
using (IBuffer <Bgra32> workBuffer = image.GetConfiguration().MemoryAllocator.Allocate <Bgra32>(w))
{
fixed(Bgra32 *sourcePtr = &workBuffer.GetReference())
{
for (int y = 0; y < h; y++)
{
Span <TPixel> row = image.Frames.RootFrame.GetPixelRowSpan(y);
PixelOperations <TPixel> .Instance.ToBgra32(row, workBuffer.GetSpan(), row.Length);
byte *destPtr = destPtrBase + data.Stride * y;
Buffer.MemoryCopy(sourcePtr, destPtr, destRowByteCount, sourceRowByteCount);
}
}
}
resultBitmap.UnlockBits(data);
return(resultBitmap);
}
/// <summary>
/// TODO: Doesn not work yet!
/// </summary>
internal static unsafe Image <TPixel> FromFromRgb24SystemDrawingBitmap <TPixel>(System.Drawing.Bitmap bmp)
where TPixel : struct, IPixel <TPixel>
{
int w = bmp.Width;
int h = bmp.Height;
var fullRect = new System.Drawing.Rectangle(0, 0, w, h);
if (bmp.PixelFormat != PixelFormat.Format24bppRgb)
{
throw new ArgumentException($"FromFromArgb32SystemDrawingBitmap(): pixel format should be Rgb24!", nameof(bmp));
}
BitmapData data = bmp.LockBits(fullRect, ImageLockMode.ReadWrite, bmp.PixelFormat);
byte * sourcePtrBase = (byte *)data.Scan0;
long sourceRowByteCount = data.Stride;
long destRowByteCount = w * sizeof(Bgr24);
var image = new Image <TPixel>(w, h);
using (IBuffer <Bgr24> workBuffer = Configuration.Default.MemoryAllocator.Allocate <Bgr24>(w))
{
fixed(Bgr24 *destPtr = &workBuffer.GetReference())
{
for (int y = 0; y < h; y++)
{
Span <TPixel> row = image.Frames.RootFrame.GetPixelRowSpan(y);
byte *sourcePtr = sourcePtrBase + data.Stride * y;
Buffer.MemoryCopy(sourcePtr, destPtr, destRowByteCount, sourceRowByteCount);
PixelOperations <TPixel> .Instance.PackFromBgr24(workBuffer.GetSpan(), row, row.Length);
// FromRgb24(workBuffer.GetSpan(), row);
}
}
}
return(image);
}