123 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			123 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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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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| 
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| #ifdef HAVE_CONFIG_H
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| #include <kdrive-config.h>
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| #endif
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| #include "s3.h"
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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