internal static Image deSerialiseBitmap(byte[] bytes)
{
GDIBitmap gdiBitmap = new GDIBitmap();
gdiBitmap.bmType = getIntFromByteArray(bytes, 0);
gdiBitmap.bmWidth = getIntFromByteArray(bytes, 4);
gdiBitmap.bmHeight = getIntFromByteArray(bytes, 8);
gdiBitmap.bmWidthBytes = getIntFromByteArray(bytes, 12);
gdiBitmap.bmPlanes = getShortFromByteArray(bytes, 16);
gdiBitmap.bmBitsPixel = getShortFromByteArray(bytes, 18);
gdiBitmap.bmBits = getIntFromByteArray(bytes, 20);
//
// from
// http://stackoverflow.com/questions/742236/how-to-create-a-bmp-file-from-byte-in-c-sharp
//
unsafe
{
fixed (byte* ptr = bytes)
{
int stride = gdiBitmap.bmWidth * 3;
//
// the new Bitmap(new Bitmap is to get a new copy of the bitmap)
//
// first we create a bitmap from the bytes array but this array will be garbage collected in the future
// so we make a deep copy and then refresh the unsafe bitmap
//
Bitmap unsafeBitmap = new Bitmap(gdiBitmap.bmWidth, gdiBitmap.bmHeight, -stride, PixelFormat.Format24bppRgb, new IntPtr(ptr + 24 + stride * (gdiBitmap.bmHeight - 1)));
Bitmap safeBitmap = new Bitmap(unsafeBitmap);
unsafeBitmap.Dispose();
return safeBitmap;
}
}
}
protected override void Initialize()
{
// Setup a couple of bitmaps
// First make a bitmap to capture the current screen image
RectangleI rect = DesktopView.MainDesktopView.Frame;
fScreenImage = new GDIBitmap("image1", 0, 0, rect.Width, rect.Height);
GDIRenderer.BitBlt(fScreenImage.GraphDevice.DeviceContext, 0, 0, rect.Width, rect.Height,
DesktopView.MainDesktopView.GraphDevice.DeviceContext,
0, 0, TernaryRasterOps.SRCCOPY);
// Then make a bitmap we'll draw transitions onto
fBlankImage = new GDIBitmap("image2", 0, 0, rect.Width, rect.Height);
fBlankImage.ClearToWhite();
// Load a picture
fPicture = new GDIBitmap("LEAP.jpg",0,0);
fPictureImage = new GDIBitmap("leap", 0, 0, rect.Width, rect.Height);
int xoff = (rect.Width - fPicture.Width) / 2;
int yoff = (rect.Height - fPicture.Height) / 2;
fPictureImage.GraphDevice.DrawImage(fPicture,xoff,yoff,fPicture.Width,fPicture.Height);
// Load some sound to play
fPlayer = new SoundPlayer("c:\\media\\sounds\\BlueSkyMine.wma");
fPlayer.Play();
Animate();
this.Quit();
}
internal static Image deSerialiseBitmap(byte[] bytes)
{
GDIBitmap gdiBitmap = new GDIBitmap();
gdiBitmap.bmType = getIntFromByteArray(bytes, 0);
gdiBitmap.bmWidth = getIntFromByteArray(bytes, 4);
gdiBitmap.bmHeight = getIntFromByteArray(bytes, 8);
gdiBitmap.bmWidthBytes = getIntFromByteArray(bytes, 12);
gdiBitmap.bmPlanes = getShortFromByteArray(bytes, 16);
gdiBitmap.bmBitsPixel = getShortFromByteArray(bytes, 18);
gdiBitmap.bmBits = getIntFromByteArray(bytes, 20);
//
// from
// http://stackoverflow.com/questions/742236/how-to-create-a-bmp-file-from-byte-in-c-sharp
//
unsafe
{
fixed(byte *ptr = bytes)
{
int stride = gdiBitmap.bmWidth * 3;
//
// the new Bitmap(new Bitmap is to get a new copy of the bitmap)
//
// first we create a bitmap from the bytes array but this array will be garbage collected in the future
// so we make a deep copy and then refresh the unsafe bitmap
//
Bitmap unsafeBitmap = new Bitmap(gdiBitmap.bmWidth, gdiBitmap.bmHeight, -stride, PixelFormat.Format24bppRgb, new IntPtr(ptr + 24 + stride * (gdiBitmap.bmHeight - 1)));
Bitmap safeBitmap = new Bitmap(unsafeBitmap);
unsafeBitmap.Dispose();
return(safeBitmap);
}
}
}
