nfbSetOptions(D3nfb)

nfbSetOptions -- notify NFB layer of driver characteristics and NFB version

Synopsis

#include "nfbDefs.h"

void nfbSetOptions (
	ScreenPtr pScreen,
	int version,
	Mask optmask,
	Mask optmask2);

Description

nfbSetOptions( ) allows the driver to inform the NFB layer of certain characteristics as well as tell the NFB layer its version number for backwards compatibility. You must call nfbSetOptions( ) as the last statement in the xxxInit( ) routine to tell the X server which version of the link kit was used to create the driver.

Arguments

pScreen

pointer to the current screen

version

X Display Driver's version number; always NFB_VERSION.

optmask

bitmask of options used for passing driver configuration options to the NFB layer. Supported values are:

NFB_ROTATE_STIPPLES: expand all stipples to double word boundaries and attempt to rotate them to the current drawable origin. This is for adapters that can only fill patterns with origins at (0,0).
NFB_ROTATE_TILES: expand all tiles to double word boundaries and attempt to rotate them to the current drawable origin. This is for adapters that can only fill patterns with origins at (0,0).
NFB_POLYGON: display driver has implemented a polygon routine that is fully compliant with the X protocol. Currently, only EvenOdd fill rule polygons are implemented and hardware clipping must be supported. See FillPolygons(D3nfb).
NFB_POLYBRES: tells NFB to gather multiple Bresenham lines before asking the driver to render them. This option was added for backwards compatibility with older drivers that render Bresenham lines one at a time.

optmask2

currently unused. Set to 0.

Exit codes

None

Version applicability

This function is supported for NFB drivers on all releases of SCO OpenServer 5, SVR5, and AIX 5L.

Source files

Routine source: ./hw/sco/ports/nfb/nfbScrInit.c
Driver source file: xxxInit.c

References

``Bresenham objects'' in Developing NFB graphics adapter drivers