xenocara/xserver/hw/kdrive/sis530/siscmap.c

65 lines
2.1 KiB
C

/*
* Copyright © 1999 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include "sis.h"
void
sisGetColors (ScreenPtr pScreen, int fb, int ndef, xColorItem *pdefs)
{
KdScreenPriv(pScreen);
sisCardInfo(pScreenPriv);
LockSis (sisc);
while (ndef--)
{
_sisOutb (pdefs->pixel, sisc->io_base+SIS_DAC_INDEX_READ);
pdefs->red = _sisInb (sisc->io_base+SIS_DAC_DATA) << 10;
pdefs->green = _sisInb (sisc->io_base+SIS_DAC_DATA) << 10;
pdefs->blue = _sisInb (sisc->io_base+SIS_DAC_DATA) << 10;
pdefs++;
}
UnlockSis (sisc);
}
void
sisPutColors (ScreenPtr pScreen, int fb, int ndef, xColorItem *pdefs)
{
KdScreenPriv(pScreen);
sisCardInfo(pScreenPriv);
LockSis(sisc);
_sisWaitVRetrace (sisc);
while (ndef--)
{
_sisOutb (pdefs->pixel, sisc->io_base+SIS_DAC_INDEX_WRITE);
_sisOutb (pdefs->red >> 10, sisc->io_base+SIS_DAC_DATA);
_sisOutb (pdefs->green >> 10, sisc->io_base+SIS_DAC_DATA);
_sisOutb (pdefs->blue >> 10, sisc->io_base+SIS_DAC_DATA);
pdefs++;
}
UnlockSis(sisc);
}