/// <summary>
/// ﾊﾞｯﾌｧーから生成
/// </summary>
/// <param name="w">ｳｲｼﾞｪｯﾄ</param>
/// <param name="buffer">ﾊﾞｯﾌｧー</param>
/// <param name="width">幅</param>
/// <param name="height">高さ</param>
/// <param name="depth">色深度</param>
/// <param name="bpp">BPP</param>
/// <returns>XImageのｲﾝｽﾀﾝｽ</returns>
public static XImage FromBuffer(Widgets.IWidget w, byte[] buffer,int width, int height,int depth, int bpp)
{
var im = new XImage();
im.convertBuffer = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(byte)) * (buffer.Length+1));
Marshal.Copy(buffer, 0, im.convertBuffer, buffer.Length);
im.image = NativeMethods.XCreateImage(w.NativeHandle.Display,
0, (uint)depth, Format.ZPixmap, 0, im.convertBuffer, (uint)width, (uint)height, bpp, 0);
im.Width = width;
im.Height = height;
return im;
}
internal static extern IntPtr XCreateImage(IntPtr display,
int visual, uint depth, XImage.Format format, int offset, IntPtr data, uint width, uint height, int bitmap_pad, int bytes_per_line);
/// <summary>
/// System.Drawing.Bitmapから生成
/// </summary>
/// <param name="w">ｳｲｼﾞｪｯﾄ</param>
/// <param name="bitmap">bitmap</param>
/// <returns>XImageのｲﾝｽﾀﾝｽ</returns>
public static XImage FromBitmap(Widgets.IWidget w, System.Drawing.Bitmap bitmap)
{
var im = new XImage();
var data = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
System.Drawing.Imaging.ImageLockMode.ReadWrite,
System.Drawing.Imaging.PixelFormat.Format32bppArgb);
int bytes = bitmap.Width * bitmap.Height * 4;
byte[] buf = new byte[bytes];
Marshal.Copy(data.Scan0, buf, 0, buf.Length);
bitmap.UnlockBits(data);
im.convertBuffer = Marshal.AllocCoTaskMem(Marshal.SizeOf(typeof(byte)) * (buf.Length+1));
Marshal.Copy(buf, 0, im.convertBuffer, buf.Length);
im.image = NativeMethods.XCreateImage(w.NativeHandle.Display,
0, 24, Format.ZPixmap, 0, im.convertBuffer, (uint)bitmap.Width, (uint)bitmap.Height, 32, 0);
im.Width = bitmap.Width;
im.Height = bitmap.Height;
return im;
}
