126 lines
3.8 KiB
C
126 lines
3.8 KiB
C
/*
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* Id: s3cmap.c,v 1.2 1999/11/02 06:16:29 keithp Exp $
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*
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* Copyright 1999 SuSE, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of SuSE not be used in advertising or
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* publicity pertaining to distribution of the software without specific,
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* written prior permission. SuSE makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
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* BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Keith Packard, SuSE, Inc.
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*/
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/* $RCSId: xc/programs/Xserver/hw/kdrive/savage/s3cmap.c,v 1.4 2000/05/06 22:17:45 keithp Exp $ */
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "s3.h"
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void
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s3GetColors (ScreenPtr pScreen, int fb, int ndef, xColorItem *pdefs)
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{
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KdScreenPriv(pScreen);
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s3CardInfo(pScreenPriv);
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S3Vga *s3vga = &s3c->s3vga;
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while (ndef--)
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{
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s3SetImm (s3vga, s3_dac_read_index, pdefs->pixel);
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pdefs->red = s3GetImm (s3vga, s3_dac_data) << 8;
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pdefs->green = s3GetImm (s3vga, s3_dac_data) << 8;
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pdefs->blue = s3GetImm (s3vga, s3_dac_data) << 8;
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pdefs++;
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}
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}
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#ifndef S3_TRIO
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#define Shift(v,d) ((d) < 0 ? ((v) >> (-d)) : ((v) << (d)))
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void
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s3SetTrueChromaKey (ScreenPtr pScreen, int pfb, xColorItem *pdef)
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{
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FbOverlayScrPrivPtr pScrPriv = fbOverlayGetScrPriv(pScreen);
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KdScreenPriv(pScreen);
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s3ScreenInfo(pScreenPriv);
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int fb, ma;
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CARD32 key;
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int r, g, b;
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for (ma = 0; s3s->fbmap[ma] >= 0; ma++)
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{
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fb = s3s->fbmap[ma];
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if (fb != pfb && pScreenPriv->screen->fb[fb].redMask)
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{
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r = KdComputeCmapShift (pScreenPriv->screen->fb[fb].redMask);
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g = KdComputeCmapShift (pScreenPriv->screen->fb[fb].greenMask);
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b = KdComputeCmapShift (pScreenPriv->screen->fb[fb].blueMask);
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key = ((Shift(pdef->red,r) & pScreenPriv->screen->fb[fb].redMask) |
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(Shift(pdef->green,g) & pScreenPriv->screen->fb[fb].greenMask) |
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(Shift(pdef->blue,b) & pScreenPriv->screen->fb[fb].blueMask));
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if (pScrPriv->layer[fb].key != key)
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{
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pScrPriv->layer[fb].key = key;
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(*pScrPriv->PaintKey) (&pScrPriv->layer[fb].u.run.pixmap->drawable,
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&pScrPriv->layer[pfb].u.run.region,
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pScrPriv->layer[fb].key, fb);
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}
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}
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}
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}
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#endif
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void
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s3PutColors (ScreenPtr pScreen, int fb, int ndef, xColorItem *pdefs)
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{
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KdScreenPriv(pScreen);
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s3CardInfo(pScreenPriv);
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s3ScreenInfo(pScreenPriv);
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S3Vga *s3vga = &s3c->s3vga;
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xColorItem *chroma = 0;
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CARD32 key;
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#if 0
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_s3WaitVRetrace (s3vga);
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#else
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S3Ptr s3 = s3c->s3;
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_s3WaitVRetraceFast(s3);
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#endif
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#ifndef S3_TRIO
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if (pScreenPriv->screen->fb[1].depth)
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{
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FbOverlayScrPrivPtr pScrPriv = fbOverlayGetScrPriv(pScreen);
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key = pScrPriv->layer[fb].key;
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}
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#endif
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else
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key = ~0;
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while (ndef--)
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{
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if (pdefs->pixel == key)
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chroma = pdefs;
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s3SetImm (s3vga, s3_dac_write_index, pdefs->pixel);
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s3SetImm (s3vga, s3_dac_data, pdefs->red >> 8);
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s3SetImm (s3vga, s3_dac_data, pdefs->green >> 8);
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s3SetImm (s3vga, s3_dac_data, pdefs->blue >> 8);
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pdefs++;
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}
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#ifndef S3_TRIO
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if (chroma && !pScreenPriv->closed)
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s3SetTrueChromaKey (pScreen, fb, chroma);
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#endif
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}
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