471 lines
12 KiB
C
471 lines
12 KiB
C
/*
|
|
* Copyright IBM Corporation 1987,1988,1989
|
|
*
|
|
* 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 name of IBM not be
|
|
* used in advertising or publicity pertaining to distribution of the
|
|
* software without specific, written prior permission.
|
|
*
|
|
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
* IBM 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.
|
|
*
|
|
*/
|
|
|
|
/***********************************************************
|
|
Copyright 1987 by Digital Equipment Corporation, Maynard, 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 name of Digital not be
|
|
used in advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
|
|
DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
|
|
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
|
|
DIGITAL 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_XORG_CONFIG_H
|
|
#include <xorg-config.h>
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include "xf4bpp.h"
|
|
#include "mfbmap.h"
|
|
#define PSZ 8
|
|
#include "mfb.h"
|
|
#include "mergerop.h"
|
|
#include "mi.h"
|
|
#include "pixmapstr.h"
|
|
#include "scrnintstr.h"
|
|
|
|
/*
|
|
* Graft in the DoBitblt from cfb. It does everything correctly.
|
|
*/
|
|
static void
|
|
vga16DoBitblt
|
|
(
|
|
DrawablePtr pSrc,
|
|
DrawablePtr pDst,
|
|
int alu,
|
|
RegionPtr prgnDst,
|
|
DDXPointPtr pptSrc,
|
|
unsigned long planemask
|
|
)
|
|
{
|
|
int widthSrc, widthDst; /* add to get to same position in next line */
|
|
BoxPtr pbox;
|
|
int nbox;
|
|
BoxPtr pboxTmp, pboxNext, pboxBase, pboxNew1, pboxNew2;
|
|
/* temporaries for shuffling rectangles */
|
|
DDXPointPtr pptTmp, pptNew1, pptNew2;
|
|
/* shuffling boxes entails shuffling the
|
|
source points too */
|
|
int w, h;
|
|
int careful;
|
|
|
|
widthSrc = mfbGetPixelWidth(pSrc);
|
|
widthDst = mfbGetPixelWidth(pDst);
|
|
|
|
/* XXX we have to err on the side of safety when both are windows,
|
|
* because we don't know if IncludeInferiors is being used.
|
|
*/
|
|
careful = ((pSrc == pDst) ||
|
|
((pSrc->type == DRAWABLE_WINDOW) &&
|
|
(pDst->type == DRAWABLE_WINDOW)));
|
|
|
|
pbox = REGION_RECTS(prgnDst);
|
|
nbox = REGION_NUM_RECTS(prgnDst);
|
|
|
|
pboxNew1 = NULL;
|
|
pptNew1 = NULL;
|
|
pboxNew2 = NULL;
|
|
pptNew2 = NULL;
|
|
if (careful && (pptSrc->y < pbox->y1))
|
|
{
|
|
/* walk source botttom to top */
|
|
widthSrc = -widthSrc;
|
|
widthDst = -widthDst;
|
|
|
|
if (nbox > 1)
|
|
{
|
|
/* keep ordering in each band, reverse order of bands */
|
|
pboxNew1 = (BoxPtr)xalloc(sizeof(BoxRec) * nbox);
|
|
if(!pboxNew1)
|
|
return;
|
|
pptNew1 = (DDXPointPtr)xalloc(sizeof(DDXPointRec) * nbox);
|
|
if(!pptNew1)
|
|
{
|
|
xfree(pboxNew1);
|
|
return;
|
|
}
|
|
pboxBase = pboxNext = pbox+nbox-1;
|
|
while (pboxBase >= pbox)
|
|
{
|
|
while ((pboxNext >= pbox) &&
|
|
(pboxBase->y1 == pboxNext->y1))
|
|
pboxNext--;
|
|
pboxTmp = pboxNext+1;
|
|
pptTmp = pptSrc + (pboxTmp - pbox);
|
|
while (pboxTmp <= pboxBase)
|
|
{
|
|
*pboxNew1++ = *pboxTmp++;
|
|
*pptNew1++ = *pptTmp++;
|
|
}
|
|
pboxBase = pboxNext;
|
|
}
|
|
pboxNew1 -= nbox;
|
|
pbox = pboxNew1;
|
|
pptNew1 -= nbox;
|
|
pptSrc = pptNew1;
|
|
}
|
|
}
|
|
|
|
if (careful && (pptSrc->x < pbox->x1))
|
|
{
|
|
if (nbox > 1)
|
|
{
|
|
/* reverse order of rects in each band */
|
|
pboxNew2 = (BoxPtr)xalloc(sizeof(BoxRec) * nbox);
|
|
pptNew2 = (DDXPointPtr)xalloc(sizeof(DDXPointRec) * nbox);
|
|
if(!pboxNew2 || !pptNew2)
|
|
{
|
|
if (pptNew2) xfree(pptNew2);
|
|
if (pboxNew2) xfree(pboxNew2);
|
|
if (pboxNew1)
|
|
{
|
|
xfree(pptNew1);
|
|
xfree(pboxNew1);
|
|
}
|
|
return;
|
|
}
|
|
pboxBase = pboxNext = pbox;
|
|
while (pboxBase < pbox+nbox)
|
|
{
|
|
while ((pboxNext < pbox+nbox) &&
|
|
(pboxNext->y1 == pboxBase->y1))
|
|
pboxNext++;
|
|
pboxTmp = pboxNext;
|
|
pptTmp = pptSrc + (pboxTmp - pbox);
|
|
while (pboxTmp != pboxBase)
|
|
{
|
|
*pboxNew2++ = *--pboxTmp;
|
|
*pptNew2++ = *--pptTmp;
|
|
}
|
|
pboxBase = pboxNext;
|
|
}
|
|
pboxNew2 -= nbox;
|
|
pbox = pboxNew2;
|
|
pptNew2 -= nbox;
|
|
pptSrc = pptNew2;
|
|
}
|
|
}
|
|
|
|
while(nbox--)
|
|
{
|
|
w = pbox->x2 - pbox->x1;
|
|
h = pbox->y2 - pbox->y1;
|
|
|
|
if( pSrc->type == DRAWABLE_WINDOW )
|
|
xf4bppBitBlt( (WindowPtr)pDst, alu, planemask,
|
|
pptSrc->x, /* x0 */
|
|
pptSrc->y, /* y0 */
|
|
pbox->x1, /* x1 */
|
|
pbox->y1, /* y1 */
|
|
w, h ); /* w, h */
|
|
else /* DRAWABLE_PIXMAP */
|
|
xf4bppDrawColorImage( (WindowPtr)pDst,
|
|
pbox->x1, pbox->y1,
|
|
w,
|
|
h,
|
|
((unsigned char *)((PixmapPtr)pSrc)->devPrivate.ptr
|
|
+ pptSrc->x + (pptSrc->y*((PixmapPtr)pSrc)->devKind)),
|
|
((PixmapPtr)pSrc)->devKind,
|
|
alu, planemask ) ;
|
|
pbox++;
|
|
pptSrc++;
|
|
}
|
|
if (pboxNew2)
|
|
{
|
|
xfree(pptNew2);
|
|
xfree(pboxNew2);
|
|
}
|
|
if (pboxNew1)
|
|
{
|
|
xfree(pptNew1);
|
|
xfree(pboxNew1);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* Graft in the CopyArea from mfb/cfb. It does everything correctly.
|
|
*/
|
|
|
|
RegionPtr
|
|
xf4bppCopyArea(pSrcDrawable, pDstDrawable,
|
|
pGC, srcx, srcy, width, height, dstx, dsty)
|
|
register DrawablePtr pSrcDrawable;
|
|
register DrawablePtr pDstDrawable;
|
|
register GC *pGC;
|
|
int srcx, srcy;
|
|
int width, height;
|
|
int dstx, dsty;
|
|
{
|
|
RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */
|
|
Bool freeSrcClip = FALSE;
|
|
|
|
RegionPtr prgnExposed;
|
|
RegionRec rgnDst;
|
|
DDXPointPtr pptSrc;
|
|
register DDXPointPtr ppt;
|
|
register BoxPtr pbox;
|
|
int i;
|
|
register int dx;
|
|
register int dy;
|
|
xRectangle origSource;
|
|
DDXPointRec origDest;
|
|
int numRects;
|
|
BoxRec fastBox;
|
|
int fastClip = 0; /* for fast clipping with pixmap source */
|
|
int fastExpose = 0; /* for fast exposures with pixmap source */
|
|
|
|
if ( pDstDrawable->type != DRAWABLE_WINDOW )
|
|
return miCopyArea( pSrcDrawable, pDstDrawable, pGC,
|
|
srcx, srcy, width, height, dstx, dsty ) ;
|
|
|
|
/* Begin code from mfb/cfbCopyArea */
|
|
|
|
origSource.x = srcx;
|
|
origSource.y = srcy;
|
|
origSource.width = width;
|
|
origSource.height = height;
|
|
origDest.x = dstx;
|
|
origDest.y = dsty;
|
|
|
|
if ((pSrcDrawable != pDstDrawable) &&
|
|
pSrcDrawable->pScreen->SourceValidate)
|
|
{
|
|
(*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, srcx, srcy, width, height);
|
|
}
|
|
|
|
srcx += pSrcDrawable->x;
|
|
srcy += pSrcDrawable->y;
|
|
|
|
/* clip the source */
|
|
|
|
if (pSrcDrawable->type == DRAWABLE_PIXMAP)
|
|
{
|
|
if ((pSrcDrawable == pDstDrawable) &&
|
|
(pGC->clientClipType == CT_NONE))
|
|
{
|
|
prgnSrcClip = pGC->pCompositeClip;
|
|
}
|
|
else
|
|
{
|
|
fastClip = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (pGC->subWindowMode == IncludeInferiors)
|
|
{
|
|
if (!((WindowPtr) pSrcDrawable)->parent)
|
|
{
|
|
/*
|
|
* special case bitblt from root window in
|
|
* IncludeInferiors mode; just like from a pixmap
|
|
*/
|
|
fastClip = 1;
|
|
}
|
|
else if ((pSrcDrawable == pDstDrawable) &&
|
|
(pGC->clientClipType == CT_NONE))
|
|
{
|
|
prgnSrcClip = pGC->pCompositeClip;
|
|
}
|
|
else
|
|
{
|
|
prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
|
|
freeSrcClip = TRUE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
|
|
}
|
|
}
|
|
|
|
fastBox.x1 = srcx;
|
|
fastBox.y1 = srcy;
|
|
fastBox.x2 = srcx + width;
|
|
fastBox.y2 = srcy + height;
|
|
|
|
/* Don't create a source region if we are doing a fast clip */
|
|
if (fastClip)
|
|
{
|
|
fastExpose = 1;
|
|
/*
|
|
* clip the source; if regions extend beyond the source size,
|
|
* make sure exposure events get sent
|
|
*/
|
|
if (fastBox.x1 < pSrcDrawable->x)
|
|
{
|
|
fastBox.x1 = pSrcDrawable->x;
|
|
fastExpose = 0;
|
|
}
|
|
if (fastBox.y1 < pSrcDrawable->y)
|
|
{
|
|
fastBox.y1 = pSrcDrawable->y;
|
|
fastExpose = 0;
|
|
}
|
|
if (fastBox.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
|
|
{
|
|
fastBox.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
|
|
fastExpose = 0;
|
|
}
|
|
if (fastBox.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
|
|
{
|
|
fastBox.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
|
|
fastExpose = 0;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
|
|
REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
|
|
}
|
|
|
|
dstx += pDstDrawable->x;
|
|
dsty += pDstDrawable->y;
|
|
|
|
if (pDstDrawable->type == DRAWABLE_WINDOW)
|
|
{
|
|
if (!((WindowPtr)pDstDrawable)->realized)
|
|
{
|
|
if (!fastClip)
|
|
REGION_UNINIT(pGC->pScreen, &rgnDst);
|
|
if (freeSrcClip)
|
|
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
dx = srcx - dstx;
|
|
dy = srcy - dsty;
|
|
|
|
/* Translate and clip the dst to the destination composite clip */
|
|
if (fastClip)
|
|
{
|
|
RegionPtr cclip;
|
|
|
|
/* Translate the region directly */
|
|
fastBox.x1 -= dx;
|
|
fastBox.x2 -= dx;
|
|
fastBox.y1 -= dy;
|
|
fastBox.y2 -= dy;
|
|
|
|
/* If the destination composite clip is one rectangle we can
|
|
do the clip directly. Otherwise we have to create a full
|
|
blown region and call intersect */
|
|
cclip = pGC->pCompositeClip;
|
|
if (REGION_NUM_RECTS(cclip) == 1)
|
|
{
|
|
BoxPtr pBox = REGION_RECTS(cclip);
|
|
|
|
if (fastBox.x1 < pBox->x1) fastBox.x1 = pBox->x1;
|
|
if (fastBox.x2 > pBox->x2) fastBox.x2 = pBox->x2;
|
|
if (fastBox.y1 < pBox->y1) fastBox.y1 = pBox->y1;
|
|
if (fastBox.y2 > pBox->y2) fastBox.y2 = pBox->y2;
|
|
|
|
/* Check to see if the region is empty */
|
|
if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2)
|
|
{
|
|
REGION_NULL(pGC->pScreen, &rgnDst);
|
|
}
|
|
else
|
|
{
|
|
REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* We must turn off fastClip now, since we must create
|
|
a full blown region. It is intersected with the
|
|
composite clip below. */
|
|
fastClip = 0;
|
|
REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
|
|
}
|
|
|
|
if (!fastClip)
|
|
{
|
|
REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, pGC->pCompositeClip);
|
|
}
|
|
|
|
/* Do bit blitting */
|
|
numRects = REGION_NUM_RECTS(&rgnDst);
|
|
if (numRects && width && height)
|
|
{
|
|
if(!(pptSrc = (DDXPointPtr)xalloc(numRects *
|
|
sizeof(DDXPointRec))))
|
|
{
|
|
REGION_UNINIT(pGC->pScreen, &rgnDst);
|
|
if (freeSrcClip)
|
|
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
|
|
return NULL;
|
|
}
|
|
pbox = REGION_RECTS(&rgnDst);
|
|
ppt = pptSrc;
|
|
for (i = numRects; --i >= 0; pbox++, ppt++)
|
|
{
|
|
ppt->x = pbox->x1 + dx;
|
|
ppt->y = pbox->y1 + dy;
|
|
}
|
|
|
|
vga16DoBitblt(pSrcDrawable, pDstDrawable, pGC->alu,
|
|
&rgnDst, pptSrc, pGC->planemask );
|
|
xfree(pptSrc);
|
|
}
|
|
|
|
prgnExposed = NULL;
|
|
if (pGC->fExpose)
|
|
{
|
|
/* Pixmap sources generate a NoExposed (we return NULL to do this) */
|
|
if (!fastExpose)
|
|
prgnExposed =
|
|
miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
|
|
origSource.x, origSource.y,
|
|
(int)origSource.width,
|
|
(int)origSource.height,
|
|
origDest.x, origDest.y, (unsigned long)0);
|
|
}
|
|
REGION_UNINIT(pGC->pScreen, &rgnDst);
|
|
if (freeSrcClip)
|
|
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
|
|
return prgnExposed;
|
|
}
|