/***********************************************************
Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
and the Massachusetts Institute of Technology, Cambridge, Massachusetts.

                        All Rights Reserved

Permission to use, copy, modify, and distribute this software and its 
documentation for any purpose and without fee is hereby granted, 
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 names of Digital or MIT not be
used in advertising or publicity pertaining to distribution of the
software without specific, written prior permission.  

DIGITAL AND KEVIN E. MARTIN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
IN NO EVENT SHALL DIGITAL OR KEVIN E. MARTIN 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.

Rewritten for the 8514/A by Kevin E. Martin (martin@cs.unc.edu)

******************************************************************/

#include "X.h"
#include "scrnintstr.h"
#include "windowstr.h"
#include "gcstruct.h"
#include "cfb.h"
#include "mistruct.h"
#include "regionstr.h"
#include "cfbmskbits.h"
#include "misc.h"
#include "x386.h"
#include "reg8514.h"

void 
ibm8514CopyWindow(pWin, ptOldOrg, prgnSrc)
    WindowPtr pWin;
    DDXPointRec ptOldOrg;
    RegionPtr prgnSrc;
{
    RegionPtr prgnDst;
    register BoxPtr pbox, pboxOrig;
    register int dx, dy;
    register int i, nbox;
    short direction = 0;
    unsigned int *ordering;
    GC dummyGC;

    dummyGC.subWindowMode = ~IncludeInferiors;

    prgnDst = (* pWin->drawable.pScreen->RegionCreate)(NULL, 1);

    if ((dx = ptOldOrg.x - pWin->drawable.x) > 0)
	direction |= INC_X;

    if ((dy = ptOldOrg.y - pWin->drawable.y) > 0)
	direction |= INC_Y;

    (* pWin->drawable.pScreen->TranslateRegion)(prgnSrc, -dx, -dy);
    (* pWin->drawable.pScreen->Intersect)(prgnDst, &pWin->borderClip, prgnSrc);

    pboxOrig = REGION_RECTS(prgnDst);
    nbox = REGION_NUM_RECTS(prgnDst);

    ordering = (unsigned int *) ALLOCATE_LOCAL(nbox * sizeof(unsigned int));
    if (!ordering) {
	(* pWin->drawable.pScreen->RegionDestroy)(prgnDst);
	return;
    }

    ibm8514FindOrdering(pWin, pWin, &dummyGC, nbox, pboxOrig, ptOldOrg.x, ptOldOrg.y, pWin->drawable.x, pWin->drawable.y, ordering);

    WaitQueue(3);
    outpw(FRGD_MIX, FSS_BITBLT | MIX_SRC);
    outpw(BKGD_MIX, BSS_BKGDCOL | MIX_SRC);
    outpw(WRT_MASK, 0xffff);

    if (direction == (INC_X | INC_Y)) {
	for (i = 0; i < nbox; i++)
	{
	    pbox = &pboxOrig[ordering[i]];

	    WaitQueue(7);
	    outpw(CUR_X, (short)(pbox->x1 + dx));
	    outpw(CUR_Y, (short)(pbox->y1 + dy));
	    outpw(DESTX_DIASTP, (short)(pbox->x1));
	    outpw(DESTY_AXSTP, (short)(pbox->y1));
	    outpw(MAJ_AXIS_PCNT, (short)(pbox->x2 - pbox->x1 - 1));
	    outpw(MULTIFUNC_CNTL, MIN_AXIS_PCNT | (short)(pbox->y2 - pbox->y1 - 1));
	    outpw(CMD, CMD_BITBLT | direction | DRAW | PLANAR | WRTDATA);
	}
    } else if (direction == INC_X) {
	for (i = 0; i < nbox; i++)
	{
	    pbox = &pboxOrig[ordering[i]];

	    WaitQueue(7);
	    outpw(CUR_X, (short)(pbox->x1 + dx));
	    outpw(CUR_Y, (short)(pbox->y2 + dy - 1));
	    outpw(DESTX_DIASTP, (short)(pbox->x1));
	    outpw(DESTY_AXSTP, (short)(pbox->y2 - 1));
	    outpw(MAJ_AXIS_PCNT, (short)(pbox->x2 - pbox->x1 - 1));
	    outpw(MULTIFUNC_CNTL, MIN_AXIS_PCNT | (short)(pbox->y2 - pbox->y1 - 1));
	    outpw(CMD, CMD_BITBLT | direction | DRAW | PLANAR | WRTDATA);
	}
    } else if (direction == INC_Y) {
	for (i = 0; i < nbox; i++)
	{
	    pbox = &pboxOrig[ordering[i]];

	    WaitQueue(7);
	    outpw(CUR_X, (short)(pbox->x2 + dx - 1));
	    outpw(CUR_Y, (short)(pbox->y1 + dy));
	    outpw(DESTX_DIASTP, (short)(pbox->x2 - 1));
	    outpw(DESTY_AXSTP, (short)(pbox->y1));
	    outpw(MAJ_AXIS_PCNT, (short)(pbox->x2 - pbox->x1 - 1));
	    outpw(MULTIFUNC_CNTL, MIN_AXIS_PCNT | (short)(pbox->y2 - pbox->y1 - 1));
	    outpw(CMD, CMD_BITBLT | direction | DRAW | PLANAR | WRTDATA);
	}
    } else {
	for (i = 0; i < nbox; i++)
	{
	    pbox = &pboxOrig[ordering[i]];

	    WaitQueue(7);
	    outpw(CUR_X, (short)(pbox->x2 + dx - 1));
	    outpw(CUR_Y, (short)(pbox->y2 + dy - 1));
	    outpw(DESTX_DIASTP, (short)(pbox->x2 - 1));
	    outpw(DESTY_AXSTP, (short)(pbox->y2 - 1));
	    outpw(MAJ_AXIS_PCNT, (short)(pbox->x2 - pbox->x1 - 1));
	    outpw(MULTIFUNC_CNTL, MIN_AXIS_PCNT | (short)(pbox->y2 - pbox->y1 - 1));
	    outpw(CMD, CMD_BITBLT | direction | DRAW | PLANAR | WRTDATA);
	}
    }

    WaitQueue(2);
    outpw(FRGD_MIX, FSS_FRGDCOL | MIX_SRC);
    outpw(BKGD_MIX, BSS_BKGDCOL | MIX_SRC);

    (* pWin->drawable.pScreen->RegionDestroy)(prgnDst);
    DEALLOCATE_LOCAL(ordering);
}