Pocket PC Bitmap

Pocket PC Bitmap (2BP) is a bitmap image format used on early Windows CE devices. It is a 4-tone grayscale format.

Evidently, 2BP is the same as Windows BMP v3, except that it has a bit depth of 2. The palette might always contain the grayscale colors {0x00, 0x80, 0xc0, 0xff}.

Software

 * Konvertor
 * XnView
 * Netpbm: bmptopnm
 * Tom's Viewer

Sample files

 * http://www.opensource.apple.com/source/zip/zip-6/unzip/unzip/wince/ → *.2bp

Links

 * Microsoft article about converting .2bp to .bmp
 * BITMAPINFOHEADER (Windows CE 5.0)