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BITFILE(9.5) BITFILE(9.5) NAME bitfile - format of bitmap file DESCRIPTION Binary files produced by blitblt(9.1) and other bitmap-generating pro- grams are formatted as follows: Byte no. Description 0, 1: Zero. 2, 3: x-coordinate of the rectangle origin (low-order byte, high- order byte). 4, 5: Y-coordinate of the rectangle origin (low-order byte, high- order byte). 6, 7: x-coordinate of the rectangle corner (low-order byte, high- order byte). 8, 9: Y-coordinate of the rectangle corner (low-order byte, high- order byte). remainder: Compressed raster data. Each raster is exclusive-or'd with the previous one, and zero-extended (if necessary) to a 16-bit boundary. It is then encoded into byte sequences, each of which consists of a control byte followed by two or more data bytes: Control Data n (< 127) 2xn bytes of raster data, running from left to right. 0x80+n 2 bytes of raster data, to be replicated from left to right n times. There are also two ASCII formats in current use. Textures and 16x16 icons, as created by icon(9.1), are encoded as a Texture declaration with initializer, to be copied unchanged into C program source; see types(9.5). Faces and other large icons are without any surrounding C syntax. In either case, each scan line of the bitmap is a comma-sepa- rated list of C-style short hexadecimal constants; scan lines are sepa- rated by newlines. SEE ALSO blitblt(9.1), icon(9.1), types(9.5), vismon(9.1) BITFILE(9.5)