protected void Dispose(bool disposing)
{
if (disposed)
{
return;
}
bitmap.Dispose();
byteArray.ReleaseReference();
disposed = true;
//Set managed object refs to null if explicitly disposing, so that they can be cleaned up by the GC.
if (disposing)
{
owner = null;
bitmap = null;
}
}
public override void SetImage(Bitmap theBitmap)
{
mImage = theBitmap;
if (theBitmap != null)
{
mEditableBitmap = new EditableBitmap(theBitmap);
//cache data in member variables to decrease overhead of property calls
//this is especially important with Width and Height, as they call
//GdipGetImageWidth() and GdipGetImageHeight() respectively in gdiplus.dll -
//which means major overhead.
bitmapStride = mEditableBitmap.Stride;
bitmapPixelFormatSize = mEditableBitmap.PixelFormatSize;
bitmapBits = mEditableBitmap.Bits;
bitmapWidth = mEditableBitmap.Bitmap.Width;
bitmapHeight = mEditableBitmap.Bitmap.Height;
}
}
public void SetImage(Bitmap theBitmap)
{
if (theBitmap != null)
{
// TODO: how to dispose previous image? if TestSequences have a reference, it should be to a View of this one?
mEditableBitmap = new EditableBitmap(theBitmap);
/*
* //cache data in member variables to decrease overhead of property calls
* //this is especially important with Width and Height, as they call
* //GdipGetImageWidth() and GdipGetImageHeight() respectively in gdiplus.dll -
* //which means major overhead.
* bitmapStride = mEditableBitmap.Stride;
* bitmapPixelFormatSize = mEditableBitmap.PixelFormatSize;
* bitmapBits = mEditableBitmap.Bits;
* bitmapWidth = mEditableBitmap.Bitmap.Width;
* bitmapHeight = mEditableBitmap.Bitmap.Height;
*/
}
}
/// <summary>
/// Creates an <see cref="EditableBitmap"/> as a view on a section of an existing <see cref="EditableBitmap"/>.
/// </summary>
/// <param name="source"></param>
/// <param name="viewArea"></param>
protected EditableBitmap(EditableBitmap source, Rectangle viewArea)
{
owner = source;
pixelFormatSize = source.pixelFormatSize;
byteArray = source.byteArray;
byteArray.AddReference();
stride = source.stride;
try
{
startOffset = source.startOffset + (stride * viewArea.Y) + (viewArea.X * pixelFormatSize);
bitmap = new Bitmap(viewArea.Width, viewArea.Height, stride, source.Bitmap.PixelFormat,
(IntPtr)(((int)byteArray.bitPtr) + startOffset));
}
finally
{
if (bitmap == null)
{
byteArray.ReleaseReference();
}
}
}
