public void UnlockBits(BitmapData data)
{
if ((ImageLockMode)data.Reserved == ImageLockMode.ReadOnly)
{
return;
}
if (NativeCGImage.BitsPerPixel == 32)
{
if (!ConversionHelpers.sTablesInitialized)
{
ConversionHelpers.CalculateTables();
}
Convert_BGRA_8888_To_P_RGBA_8888(bitmapBlock, data.Stride * data.Height);
}
}
public BitmapData LockBits(Rectangle rect, ImageLockMode flags, PixelFormat pixelFormat)
{
// We don't support conversion
if (PixelFormat != pixelFormat)
{
throw new ArgumentException("", "pixelFormat");
}
if (rect != new RectangleF(new PointF(0, 0), physicalDimension))
{
throw new NotImplementedException("Sub rectangles of bitmaps not supported yet.");
}
// Bitmap created from external data, convert it
if (bitmapBlock == IntPtr.Zero)
{
GetRenderableContext();
}
BitmapData bitmapData = new BitmapData();
//bitmapData.Scan0 = (IntPtr)((long)pinnedScanArray.AddrOfPinnedObject() + ((rect.Left * NativeCGImage.BitsPerPixel + 7) / 8) + (rect.Top * NativeCGImage.BytesPerRow));
bitmapData.Scan0 = bitmapBlock;
bitmapData.Height = (int)rect.Height;
bitmapData.Width = (int)rect.Width;
bitmapData.PixelFormat = pixelFormat;
bitmapData.Stride = (int)NativeCGImage.BytesPerRow;
bitmapData.Reserved = (int)flags;
if (flags != ImageLockMode.WriteOnly)
{
if (NativeCGImage.BitsPerPixel == 32)
{
if (!ConversionHelpers.sTablesInitialized)
{
ConversionHelpers.CalculateTables();
}
Convert_P_RGBA_8888_To_BGRA_8888(bitmapBlock, bitmapData.Stride * bitmapData.Height);
}
}
return(bitmapData);
}
