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/* $XConsortium: bcach.c,v 1.1 95/01/26 15:29:18 kaleb Exp $ */
/*
* Copyright 1993 by Jon Tombs. Oxford University
*
* 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 Jon Tombs or Oxford University shall
* not be used in advertising or publicity pertaining to distribution of the
* software without specific, written prior permission. The authors make no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* JON TOMBS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* THE AUTHORS 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.
*
*/
/*
* Extract from s3bcach.c
* Adapted to 8514, Hans Nasten. (nasten@everyware.se).
*/
#include "X.h"
#include "Xmd.h"
#include "Xproto.h"
#include "cfb.h"
#include "misc.h"
#include "xf86.h"
#include "windowstr.h"
#include "gcstruct.h"
#include "fontstruct.h"
#include "dixfontstr.h"
#include "xf86bcache.h"
#include "ibm8514.h"
#include "reg8514.h"
extern unsigned char ibm8514cachemask[8];
extern unsigned char ibm8514cachemaskswapped[8];
/*
* Use the GE to move a block of cache memory when compacting the cache.
*
* The id field in the cache blocks is used as a bitplane number, except
* for full depth blocks when 0xff is used.
*/
void ibm8514CacheMoveBlock( srcx, srcy, dstx, dsty, h, w, id )
int srcx, srcy, dstx, dsty, h, w;
unsigned int id;
{
WaitQueue(8);
outw(MULTIFUNC_CNTL, SCISSORS_T | 0);
outw(MULTIFUNC_CNTL, SCISSORS_L | 0);
outw(MULTIFUNC_CNTL, SCISSORS_R | 1023);
outw(MULTIFUNC_CNTL, SCISSORS_B | 1023);
outw(MULTIFUNC_CNTL, PIX_CNTL | MIXSEL_FRGDMIX);
outw(FRGD_MIX, FSS_BITBLT | MIX_SRC);
outw(BKGD_MIX, BSS_BITBLT | MIX_SRC);
if( id != 0xff )
outw(WRT_MASK, ibm8514cachemask[id]);
else
outw(WRT_MASK, (short) id);
WaitQueue(8); /* now shift the cache */
if( id != 0xff )
outw(RD_MASK, ibm8514cachemaskswapped[id]);
else
outw(RD_MASK, (short) id);
outw(CUR_Y, srcy);
outw(CUR_X, srcx);
outw(DESTX_DIASTP, dstx);
outw(DESTY_AXSTP, dsty);
outw(MAJ_AXIS_PCNT, w - 1);
outw(MULTIFUNC_CNTL, MIN_AXIS_PCNT | (h - 1));
outw(CMD, CMD_BITBLT | INC_X | INC_Y | DRAW | PLANAR | WRTDATA);
WaitQueue(4); /* sanity returns */
outw(RD_MASK, 0xff);
outw(MULTIFUNC_CNTL, PIX_CNTL | MIXSEL_FRGDMIX | COLCMPOP_F);
outw(FRGD_MIX, FSS_FRGDCOL | MIX_SRC);
outw(BKGD_MIX, BSS_BKGDCOL | MIX_SRC);
}
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