void CopyToOriginalImage()
{
if (SourceImage != null && DrawingImage != null)
{
// copy back to original image when format is incompatible with CoreGraphics
using (var bdNew = DrawingImage.Lock())
using (var bdOrig = SourceImage.Lock())
{
var size = DrawingImage.Size;
for (int y = 0; y < size.Height; y++)
{
for (int x = 0; x < size.Width; x++)
{
bdOrig.SetPixel(x, y, bdNew.GetPixel(x, y));
}
}
}
}
}
void CopyToOriginalImage()
{
if (SourceImage != null && DrawingImage != null)
{
// copy back to original image when format is incompatible with CoreGraphics
using (var bdNew = DrawingImage.Lock())
using (var bdOrig = SourceImage.Lock())
{
var size = DrawingImage.Size;
if (bdNew.BitsPerPixel == 32 && bdOrig.BitsPerPixel == 24)
{
unsafe {
// assuming rgb is in same order as 32bpp bitmap, should be..
var src = (byte *)bdNew.Data;
var dest = (byte *)bdOrig.Data;
var length = size.Width * size.Height;
for (int i = 0; i < length; i++)
{
*(dest++) = *(src++);
*(dest++) = *(src++);
*(dest++) = *(src++);
src++; // ignore alpha
}
}
}
else
{
for (int y = 0; y < size.Height; y++)
{
for (int x = 0; x < size.Width; x++)
{
bdOrig.SetPixel(x, y, bdNew.GetPixel(x, y));
}
}
}
}
}
}