meta: id: xwd title: xwd (X Window Dump) bitmap image application: xwd file-extension: xwd xref: justsolve: XWD pronom: fmt/401 license: CC0-1.0 endian: be doc: | xwd is a file format written by eponymous X11 screen capture application (xwd stands for "X Window Dump"). Typically, an average user transforms xwd format into something more widespread by any of `xwdtopnm` and `pnmto...` utilities right away. xwd format itself provides a raw uncompressed bitmap with some metainformation, like pixel format, width, height, bit depth, etc. Note that technically format includes machine-dependent fields and thus is probably a poor choice for true cross-platform usage. seq: - id: len_header type: u4 doc: Size of the header in bytes - id: hdr size: len_header - 4 type: header - id: color_map size: 12 type: color_map_entry repeat: expr repeat-expr: hdr.color_map_entries types: header: seq: - id: file_version type: u4 doc: X11WD file version (always 07h) - id: pixmap_format type: u4 doc: Format of the image data enum: pixmap_format - id: pixmap_depth type: u4 doc: Pixmap depth in pixels - in practice, bits per pixel - id: pixmap_width type: u4 doc: Pixmap width in pixels - id: pixmap_height type: u4 doc: Pixmap height in pixels - id: x_offset type: u4 doc: Bitmap X offset (number of pixels to ignore at the beginning of each scan-line) - id: byte_order type: u4 doc: Byte order of image data enum: byte_order - id: bitmap_unit type: u4 doc: Bitmap base data size - id: bitmap_bit_order type: u4 doc: Bit-order of image data - id: bitmap_pad type: u4 doc: Bitmap scan-line pad - id: bits_per_pixel type: u4 doc: Bits per pixel - id: bytes_per_line type: u4 doc: Bytes per scan-line - id: visual_class type: u4 doc: Class of the image enum: visual_class - id: red_mask type: u4 doc: Red mask - id: green_mask type: u4 doc: Green mask - id: blue_mask type: u4 doc: Blue mask - id: bits_per_rgb type: u4 doc: Size of each color mask in bits - id: number_of_colors type: u4 doc: Number of colors in image - id: color_map_entries type: u4 doc: Number of entries in color map - id: window_width type: u4 doc: Window width - id: window_height type: u4 doc: Window height - id: window_x type: s4 doc: Window upper left X coordinate - id: window_y type: s4 doc: Window upper left Y coordinate - id: window_border_width type: u4 doc: Window border width - id: creator type: strz encoding: UTF-8 doc: Program that created this xwd file color_map_entry: seq: - id: entry_number type: u4 doc: Number of the color map entry - id: red type: u2 - id: green type: u2 - id: blue type: u2 - id: flags type: u1 - id: padding type: u1 enums: pixmap_format: 0: x_y_bitmap 1: x_y_pixmap 2: z_pixmap byte_order: 0: le 1: be visual_class: 0: static_gray 1: gray_scale 2: static_color 3: pseudo_color 4: true_color 5: direct_color