4.4BSD/usr/src/contrib/X11R5-hp300/mit/server/ddx/hpbsd/mfb/mfbgc.c
/***********************************************************
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 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.
******************************************************************/
/* $XConsortium: mfbgc.c,v 5.25 91/05/26 09:22:58 rws Exp $ */
#include "X.h"
#include "Xmd.h"
#include "Xproto.h"
#include "mfb.h"
#include "dixfontstr.h"
#include "fontstruct.h"
#include "gcstruct.h"
#include "windowstr.h"
#include "pixmapstr.h"
#include "scrnintstr.h"
#include "region.h"
#include "mistruct.h"
#include "maskbits.h"
static void mfbDestroyOps();
static GCFuncs mfbFuncs = {
mfbValidateGC,
mfbChangeGC,
mfbCopyGC,
mfbDestroyGC,
mfbChangeClip,
mfbDestroyClip,
mfbCopyClip,
};
static GCOps whiteTECopyOps = {
mfbWhiteSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
mfbZeroPolyArcSS,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbTEGlyphBltWhite,
mfbPolyGlyphBltWhite,
mfbSolidPP,
NULL,
};
static GCOps blackTECopyOps = {
mfbBlackSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
mfbZeroPolyArcSS,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbTEGlyphBltBlack,
mfbPolyGlyphBltBlack,
mfbSolidPP,
NULL,
};
static GCOps whiteTEInvertOps = {
mfbInvertSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
miZeroPolyArc,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbTEGlyphBltWhite,
mfbPolyGlyphBltInvert,
mfbSolidPP,
NULL,
};
static GCOps blackTEInvertOps = {
mfbInvertSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
miZeroPolyArc,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbTEGlyphBltBlack,
mfbPolyGlyphBltInvert,
mfbSolidPP,
NULL,
};
static GCOps whiteCopyOps = {
mfbWhiteSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
mfbZeroPolyArcSS,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbImageGlyphBltWhite,
mfbPolyGlyphBltWhite,
mfbSolidPP,
NULL,
};
static GCOps blackCopyOps = {
mfbBlackSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
mfbZeroPolyArcSS,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbImageGlyphBltBlack,
mfbPolyGlyphBltBlack,
mfbSolidPP,
NULL,
};
static GCOps whiteInvertOps = {
mfbInvertSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
miZeroPolyArc,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbImageGlyphBltWhite,
mfbPolyGlyphBltInvert,
mfbSolidPP,
NULL,
};
static GCOps blackInvertOps = {
mfbInvertSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
miZeroPolyArc,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
mfbImageGlyphBltBlack,
mfbPolyGlyphBltInvert,
mfbSolidPP,
NULL,
};
static GCOps whiteWhiteCopyOps = {
mfbWhiteSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
mfbZeroPolyArcSS,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
miImageGlyphBlt,
mfbPolyGlyphBltWhite,
mfbSolidPP,
NULL,
};
static GCOps blackBlackCopyOps = {
mfbBlackSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
mfbZeroPolyArcSS,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
miImageGlyphBlt,
mfbPolyGlyphBltBlack,
mfbSolidPP,
NULL,
};
static GCOps fgEqBgInvertOps = {
mfbInvertSolidFS,
mfbSetSpans,
mfbPutImage,
mfbCopyArea,
mfbCopyPlane,
mfbPolyPoint,
mfbLineSS,
mfbSegmentSS,
miPolyRectangle,
miZeroPolyArc,
miFillPolygon,
mfbPolyFillRect,
mfbPolyFillArcSolid,
miPolyText8,
miPolyText16,
miImageText8,
miImageText16,
miImageGlyphBlt,
mfbPolyGlyphBltInvert,
mfbSolidPP,
NULL,
};
struct commonOps {
int fg, bg;
int rrop;
int terminalFont;
GCOps *ops;
void (*fillArea)();
};
static struct commonOps mfbCommonOps[] = {
{ 1, 0, RROP_WHITE, 1, &whiteTECopyOps, mfbSolidWhiteArea },
{ 0, 1, RROP_BLACK, 1, &blackTECopyOps, mfbSolidBlackArea },
{ 1, 0, RROP_INVERT, 1, &whiteTEInvertOps, mfbSolidInvertArea },
{ 0, 1, RROP_INVERT, 1, &blackTEInvertOps, mfbSolidInvertArea },
{ 1, 0, RROP_WHITE, 0, &whiteCopyOps, mfbSolidWhiteArea },
{ 0, 1, RROP_BLACK, 0, &blackCopyOps, mfbSolidBlackArea },
{ 1, 0, RROP_INVERT, 0, &whiteInvertOps, mfbSolidInvertArea },
{ 0, 1, RROP_INVERT, 0, &blackInvertOps, mfbSolidInvertArea },
{ 1, 1, RROP_WHITE, 0, &whiteWhiteCopyOps, mfbSolidWhiteArea },
{ 0, 0, RROP_BLACK, 0, &blackBlackCopyOps, mfbSolidBlackArea },
{ 1, 1, RROP_INVERT, 0, &fgEqBgInvertOps, mfbSolidInvertArea },
{ 0, 0, RROP_INVERT, 0, &fgEqBgInvertOps, mfbSolidInvertArea },
};
#define numberCommonOps (sizeof (mfbCommonOps) / sizeof (mfbCommonOps[0]))
static GCOps *
matchCommon (pGC)
GCPtr pGC;
{
int i;
struct commonOps *cop;
mfbPrivGC *priv;
if (pGC->lineWidth != 0)
return 0;
if (pGC->lineStyle != LineSolid)
return 0;
if (pGC->fillStyle != FillSolid)
return 0;
if (!pGC->font ||
FONTMAXBOUNDS(pGC->font,rightSideBearing) -
FONTMINBOUNDS(pGC->font,leftSideBearing) > 32 ||
FONTMINBOUNDS(pGC->font,characterWidth) < 0)
return 0;
priv = (mfbPrivGC *) pGC->devPrivates[mfbGCPrivateIndex].ptr;
for (i = 0; i < numberCommonOps; i++) {
cop = &mfbCommonOps[i];
if ((pGC->fgPixel & 1) != cop->fg)
continue;
if ((pGC->bgPixel & 1) != cop->bg)
continue;
if (priv->rop != cop->rrop)
continue;
if (cop->terminalFont && !TERMINALFONT(pGC->font))
continue;
priv->FillArea = cop->fillArea;
return cop->ops;
}
return 0;
}
/*
to let hp displays with bit blt override the mfbCopyArea routine.
XXX: currently ignores the pScreen argument
XXX: and will break if multiple screens of different types are attached.
*/
void
mfbRegisterCopyAreaProc(pScreen, proc)
ScreenPtr pScreen;
RegionPtr (* proc)();
{
whiteTECopyOps.CopyArea = proc;
blackTECopyOps.CopyArea = proc;
whiteTEInvertOps.CopyArea = proc;
blackTEInvertOps.CopyArea = proc;
whiteCopyOps.CopyArea = proc;
blackCopyOps.CopyArea = proc;
whiteInvertOps.CopyArea = proc;
blackInvertOps.CopyArea = proc;
whiteWhiteCopyOps.CopyArea = proc;
blackBlackCopyOps.CopyArea = proc;
fgEqBgInvertOps.CopyArea = proc;
}
Bool
mfbCreateGC(pGC)
register GCPtr pGC;
{
mfbPrivGC *pPriv;
pGC->clientClip = NULL;
pGC->clientClipType = CT_NONE;
/* some of the output primitives aren't really necessary, since
they will be filled in ValidateGC because of dix/CreateGC()
setting all the change bits. Others are necessary because although
they depend on being a monochrome frame buffer, they don't change
*/
pGC->ops = &whiteCopyOps;
pGC->funcs = &mfbFuncs;
/* mfb wants to translate before scan convesion */
pGC->miTranslate = 1;
pPriv = (mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr);
pPriv->rop = mfbReduceRop(pGC->alu, pGC->fgPixel);
pPriv->fExpose = TRUE;
pPriv->pRotatedPixmap = NullPixmap;
pPriv->freeCompClip = FALSE;
pPriv->FillArea = mfbSolidInvertArea;
return TRUE;
}
/*ARGSUSED*/
void
mfbChangeGC(pGC, mask)
GC *pGC;
BITS32 mask;
{
return;
}
/*ARGSUSED*/
void
mfbCopyGC (pGCSrc, changes, pGCDst)
GCPtr pGCSrc;
Mask changes;
GCPtr pGCDst;
{
return;
}
void
mfbDestroyGC(pGC)
GC *pGC;
{
mfbPrivGC *pPriv;
pPriv = (mfbPrivGC *)(pGC->devPrivates[mfbGCPrivateIndex].ptr);
if (pPriv->pRotatedPixmap)
mfbDestroyPixmap(pPriv->pRotatedPixmap);
if (pPriv->freeCompClip)
(*pGC->pScreen->RegionDestroy)(pPriv->pCompositeClip);
mfbDestroyOps (pGC->ops);
}
/*
* create a private op array for a gc
*/
static GCOps *
mfbCreateOps (prototype)
GCOps *prototype;
{
GCOps *ret;
extern Bool Must_have_memory;
/* XXX */ Must_have_memory = TRUE;
ret = (GCOps *) xalloc (sizeof *ret);
/* XXX */ Must_have_memory = FALSE;
if (!ret)
return 0;
*ret = *prototype;
ret->devPrivate.val = 1;
return ret;
}
static void
mfbDestroyOps (ops)
GCOps *ops;
{
if (ops->devPrivate.val)
xfree (ops);
}
/* Clipping conventions
if the drawable is a window
CT_REGION ==> pCompositeClip really is the composite
CT_other ==> pCompositeClip is the window clip region
if the drawable is a pixmap
CT_REGION ==> pCompositeClip is the translated client region
clipped to the pixmap boundary
CT_other ==> pCompositeClip is the pixmap bounding box
*/
/*ARGSUSED*/
void
mfbValidateGC(pGC, changes, pDrawable)
register GCPtr pGC;
Mask changes;
DrawablePtr pDrawable;
{
register mfbPrivGCPtr devPriv;
WindowPtr pWin;
int mask; /* stateChanges */
int index; /* used for stepping through bitfields */
int xrot, yrot; /* rotations for tile and stipple pattern */
int rrop; /* reduced rasterop */
/* flags for changing the proc vector
and updating things in devPriv
*/
int new_rotate, new_rrop, new_line, new_text, new_fill;
DDXPointRec oldOrg; /* origin of thing GC was last used with */
oldOrg = pGC->lastWinOrg;
pGC->lastWinOrg.x = pDrawable->x;
pGC->lastWinOrg.y = pDrawable->y;
if (pDrawable->type == DRAWABLE_WINDOW)
pWin = (WindowPtr)pDrawable;
else
pWin = (WindowPtr)NULL;
/* we need to re-rotate the tile if the previous window/pixmap
origin (oldOrg) differs from the new window/pixmap origin
(pGC->lastWinOrg)
*/
new_rotate = (oldOrg.x != pGC->lastWinOrg.x) ||
(oldOrg.y != pGC->lastWinOrg.y);
devPriv = ((mfbPrivGCPtr) (pGC->devPrivates[mfbGCPrivateIndex].ptr));
/*
if the client clip is different or moved OR
the subwindowMode has changed OR
the window's clip has changed since the last validation
we need to recompute the composite clip
*/
if ((changes & (GCClipXOrigin|GCClipYOrigin|GCClipMask|GCSubwindowMode)) ||
(pDrawable->serialNumber != (pGC->serialNumber & DRAWABLE_SERIAL_BITS))
)
{
ScreenPtr pScreen = pGC->pScreen;
if (pWin)
{
Bool freeTmpClip, freeCompClip;
RegionPtr pregWin; /* clip for this window, without
client clip */
if (pGC->subWindowMode == IncludeInferiors)
{
pregWin = NotClippedByChildren(pWin);
freeTmpClip = TRUE;
}
else
{
pregWin = &pWin->clipList;
freeTmpClip = FALSE;
}
freeCompClip = devPriv->freeCompClip;
/* if there is no client clip, we can get by with
just keeping the pointer we got, and remembering
whether or not should destroy (or maybe re-use)
it later. this way, we avoid unnecessary copying
of regions. (this wins especially if many clients clip
by children and have no client clip.)
*/
if (pGC->clientClipType == CT_NONE)
{
if(freeCompClip)
(*pScreen->RegionDestroy) (devPriv->pCompositeClip);
devPriv->pCompositeClip = pregWin;
devPriv->freeCompClip = freeTmpClip;
}
else
{
/* we need one 'real' region to put into the composite
clip.
if pregWin and the current composite clip
are real, we can get rid of one.
if the current composite clip is real and
pregWin isn't, intersect the client clip and
pregWin into the existing composite clip.
if pregWin is real and the current composite
clip isn't, intersect pregWin with the client clip
and replace the composite clip with it.
if neither is real, create a new region and
do the intersection into it.
*/
(*pScreen->TranslateRegion)(pGC->clientClip,
pDrawable->x + pGC->clipOrg.x,
pDrawable->y + pGC->clipOrg.y);
if (freeCompClip)
{
(*pScreen->Intersect)(devPriv->pCompositeClip,
pregWin, pGC->clientClip);
if (freeTmpClip)
(*pScreen->RegionDestroy)(pregWin);
}
else if (freeTmpClip)
{
(*pScreen->Intersect)(pregWin, pregWin, pGC->clientClip);
devPriv->pCompositeClip = pregWin;
}
else
{
devPriv->pCompositeClip = (*pScreen->RegionCreate)(NullBox,
0);
(*pScreen->Intersect)(devPriv->pCompositeClip,
pregWin, pGC->clientClip);
}
devPriv->freeCompClip = TRUE;
(*pScreen->TranslateRegion)(pGC->clientClip,
-(pDrawable->x + pGC->clipOrg.x),
-(pDrawable->y + pGC->clipOrg.y));
}
} /* end of composite clip for a window */
else
{
BoxRec pixbounds;
/* XXX should we translate by drawable.x/y here ? */
pixbounds.x1 = 0;
pixbounds.y1 = 0;
pixbounds.x2 = pDrawable->width;
pixbounds.y2 = pDrawable->height;
if (devPriv->freeCompClip)
(*pScreen->RegionReset)(devPriv->pCompositeClip, &pixbounds);
else
{
devPriv->freeCompClip = TRUE;
devPriv->pCompositeClip = (*pScreen->RegionCreate)(&pixbounds,
1);
}
if (pGC->clientClipType == CT_REGION)
{
(*pScreen->TranslateRegion)(devPriv->pCompositeClip,
-pGC->clipOrg.x, -pGC->clipOrg.y);
(*pScreen->Intersect)(devPriv->pCompositeClip,
devPriv->pCompositeClip,
pGC->clientClip);
(*pScreen->TranslateRegion)(devPriv->pCompositeClip,
pGC->clipOrg.x, pGC->clipOrg.y);
}
} /* end of composite clip for pixmap */
}
new_rrop = FALSE;
new_line = FALSE;
new_text = FALSE;
new_fill = FALSE;
mask = changes;
while (mask)
{
index = lowbit (mask);
mask &= ~index;
/* this switch acculmulates a list of which procedures
might have to change due to changes in the GC. in
some cases (e.g. changing one 16 bit tile for another)
we might not really need a change, but the code is
being paranoid.
this sort of batching wins if, for example, the alu
and the font have been changed, or any other pair
of items that both change the same thing.
*/
switch (index)
{
case GCFunction:
case GCForeground:
new_rrop = TRUE;
break;
case GCPlaneMask:
break;
case GCBackground:
new_rrop = TRUE; /* for opaque stipples */
break;
case GCLineStyle:
case GCLineWidth:
case GCJoinStyle:
new_line = TRUE;
break;
case GCCapStyle:
break;
case GCFillStyle:
new_fill = TRUE;
break;
case GCFillRule:
break;
case GCTile:
if(pGC->tileIsPixel)
break;
new_rotate = TRUE;
new_fill = TRUE;
break;
case GCStipple:
if(pGC->stipple == (PixmapPtr)NULL)
break;
new_rotate = TRUE;
new_fill = TRUE;
break;
case GCTileStipXOrigin:
new_rotate = TRUE;
break;
case GCTileStipYOrigin:
new_rotate = TRUE;
break;
case GCFont:
new_text = TRUE;
break;
case GCSubwindowMode:
break;
case GCGraphicsExposures:
break;
case GCClipXOrigin:
break;
case GCClipYOrigin:
break;
case GCClipMask:
break;
case GCDashOffset:
break;
case GCDashList:
break;
case GCArcMode:
break;
default:
break;
}
}
/* deal with the changes we've collected .
new_rrop must be done first because subsequent things
depend on it.
*/
if(new_rotate || new_fill)
{
Bool new_pix = FALSE;
/* figure out how much to rotate */
xrot = pGC->patOrg.x;
yrot = pGC->patOrg.y;
xrot += pDrawable->x;
yrot += pDrawable->y;
switch (pGC->fillStyle)
{
case FillTiled:
/* copy current tile and stipple */
if (!pGC->tileIsPixel && (pGC->tile.pixmap->drawable.width <= 32) &&
!(pGC->tile.pixmap->drawable.width & (pGC->tile.pixmap->drawable.width - 1)))
{
mfbCopyRotatePixmap(pGC->tile.pixmap,
&devPriv->pRotatedPixmap, xrot, yrot);
new_pix = TRUE;
}
break;
case FillStippled:
case FillOpaqueStippled:
if (pGC->stipple && (pGC->stipple->drawable.width <= 32) &&
!(pGC->stipple->drawable.width & (pGC->stipple->drawable.width - 1)))
{
if (pGC->stipple == pGC->pScreen->PixmapPerDepth[0])
{
if (pGC->stipple->drawable.width != 32)
mfbPadPixmap(pGC->stipple);
if (devPriv->pRotatedPixmap)
mfbDestroyPixmap(devPriv->pRotatedPixmap);
devPriv->pRotatedPixmap = pGC->stipple;
++devPriv->pRotatedPixmap->refcnt;
}
else
{
mfbCopyRotatePixmap(pGC->stipple,
&devPriv->pRotatedPixmap, xrot, yrot);
}
new_pix = TRUE;
}
}
/* destroy any previously rotated tile or stipple */
if (!new_pix && devPriv->pRotatedPixmap)
{
mfbDestroyPixmap(devPriv->pRotatedPixmap);
devPriv->pRotatedPixmap = (PixmapPtr)NULL;
}
}
/*
* duck out here when the GC is unchanged
*/
if (!changes)
return;
if (new_rrop || new_fill)
{
rrop = mfbReduceRop(pGC->alu, pGC->fgPixel);
devPriv->rop = rrop;
new_fill = TRUE;
/* FillArea raster op is GC's for tile filling,
and the reduced rop for solid and stipple
*/
if (pGC->fillStyle == FillTiled)
devPriv->ropFillArea = pGC->alu;
else
devPriv->ropFillArea = rrop;
/* opaque stipples:
fg bg ropOpStip fill style
1 0 alu tile
0 1 inverseAlu tile
1 1 rrop(fg, alu) solid
0 0 rrop(fg, alu) solid
Note that rrop(fg, alu) == mfbPrivGC.rop, so we don't really need to
compute it.
*/
if (pGC->fillStyle == FillOpaqueStippled)
{
if ((pGC->fgPixel & 1) != (pGC->bgPixel & 1))
{
if (pGC->fgPixel & 1)
devPriv->ropOpStip = pGC->alu;
else
devPriv->ropOpStip = InverseAlu[pGC->alu];
}
else
devPriv->ropOpStip = rrop;
devPriv->ropFillArea = devPriv->ropOpStip;
}
}
else
rrop = devPriv->rop;
if (new_line || new_fill || new_text)
{
GCOps *newops;
if (newops = matchCommon (pGC))
{
if (pGC->ops->devPrivate.val)
mfbDestroyOps (pGC->ops);
pGC->ops = newops;
new_line = new_fill = new_text = 0;
}
else
{
if (!pGC->ops->devPrivate.val)
{
pGC->ops = mfbCreateOps (pGC->ops);
pGC->ops->devPrivate.val = 1;
}
}
}
if (new_line || new_fill)
{
if (pGC->lineWidth == 0)
{
if ((pGC->lineStyle == LineSolid) && (pGC->fillStyle == FillSolid)
&& ((rrop == RROP_WHITE) || (rrop == RROP_BLACK)))
pGC->ops->PolyArc = mfbZeroPolyArcSS;
else
pGC->ops->PolyArc = miZeroPolyArc;
}
else
pGC->ops->PolyArc = miPolyArc;
if (pGC->lineStyle == LineSolid)
{
if(pGC->lineWidth == 0)
{
if (pGC->fillStyle == FillSolid)
{
pGC->ops->PolySegment = mfbSegmentSS;
pGC->ops->Polylines = mfbLineSS;
}
else
{
pGC->ops->PolySegment = miPolySegment;
pGC->ops->Polylines = miZeroLine;
}
}
else
{
pGC->ops->PolySegment = miPolySegment;
pGC->ops->Polylines = miWideLine;
}
}
else
{
if(pGC->lineWidth == 0 && pGC->fillStyle == FillSolid)
{
pGC->ops->Polylines = mfbLineSD;
pGC->ops->PolySegment = mfbSegmentSD;
}
else
{
pGC->ops->Polylines = miWideDash;
pGC->ops->PolySegment = miPolySegment;
}
}
}
if (new_text || new_fill)
{
if ((pGC->font) &&
(FONTMAXBOUNDS(pGC->font,rightSideBearing) -
FONTMINBOUNDS(pGC->font,leftSideBearing) > 32 ||
FONTMINBOUNDS(pGC->font,characterWidth) < 0))
{
pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
pGC->ops->ImageGlyphBlt = miImageGlyphBlt;
}
else
{
/* special case ImageGlyphBlt for terminal emulator fonts */
if ((pGC->font) &&
TERMINALFONT(pGC->font) &&
((pGC->fgPixel & 1) != (pGC->bgPixel & 1)))
{
/* pcc bug makes this not compile...
pGC->ops->ImageGlyphBlt = (pGC->fgPixel & 1) ? mfbTEGlyphBltWhite :
mfbTEGlyphBltBlack;
*/
if (pGC->fgPixel & 1)
pGC->ops->ImageGlyphBlt = mfbTEGlyphBltWhite;
else
pGC->ops->ImageGlyphBlt = mfbTEGlyphBltBlack;
}
else
{
if (pGC->fgPixel & 1)
pGC->ops->ImageGlyphBlt = mfbImageGlyphBltWhite;
else
pGC->ops->ImageGlyphBlt = mfbImageGlyphBltBlack;
}
/* now do PolyGlyphBlt */
if (pGC->fillStyle == FillSolid ||
(pGC->fillStyle == FillOpaqueStippled &&
(pGC->fgPixel & 1) == (pGC->bgPixel & 1)
)
)
{
if (rrop == RROP_WHITE)
pGC->ops->PolyGlyphBlt = mfbPolyGlyphBltWhite;
else if (rrop == RROP_BLACK)
pGC->ops->PolyGlyphBlt = mfbPolyGlyphBltBlack;
else if (rrop == RROP_INVERT)
pGC->ops->PolyGlyphBlt = mfbPolyGlyphBltInvert;
else
pGC->ops->PolyGlyphBlt = NoopDDA;
}
else
{
pGC->ops->PolyGlyphBlt = miPolyGlyphBlt;
}
}
}
if (new_fill)
{
/* install a suitable fillspans and pushpixels */
pGC->ops->PushPixels = mfbPushPixels;
if ((pGC->fillStyle == FillSolid) ||
((pGC->fillStyle == FillOpaqueStippled) &&
((pGC->fgPixel & 1) == (pGC->bgPixel & 1))))
{
pGC->ops->PushPixels = mfbSolidPP;
switch(devPriv->rop)
{
case RROP_WHITE:
pGC->ops->FillSpans = mfbWhiteSolidFS;
break;
case RROP_BLACK:
pGC->ops->FillSpans = mfbBlackSolidFS;
break;
case RROP_INVERT:
pGC->ops->FillSpans = mfbInvertSolidFS;
break;
case RROP_NOP:
pGC->ops->FillSpans = NoopDDA;
break;
}
}
/* beyond this point, opaqueStippled ==> fg != bg */
else if (((pGC->fillStyle == FillTiled) ||
(pGC->fillStyle == FillOpaqueStippled)) &&
!devPriv->pRotatedPixmap)
{
pGC->ops->FillSpans = mfbUnnaturalTileFS;
}
else if ((pGC->fillStyle == FillStippled) && !devPriv->pRotatedPixmap)
{
pGC->ops->FillSpans = mfbUnnaturalStippleFS;
}
else if (pGC->fillStyle == FillStippled)
{
switch(devPriv->rop)
{
case RROP_WHITE:
pGC->ops->FillSpans = mfbWhiteStippleFS;
break;
case RROP_BLACK:
pGC->ops->FillSpans = mfbBlackStippleFS;
break;
case RROP_INVERT:
pGC->ops->FillSpans = mfbInvertStippleFS;
break;
case RROP_NOP:
pGC->ops->FillSpans = NoopDDA;
break;
}
}
else /* overload tiles to do parti-colored opaque stipples */
{
pGC->ops->FillSpans = mfbTileFS;
}
if (pGC->fillStyle == FillSolid)
pGC->ops->PolyFillArc = mfbPolyFillArcSolid;
else
pGC->ops->PolyFillArc = miPolyFillArc;
/* the rectangle code doesn't deal with opaque stipples that
are two colors -- we can fool it for fg==bg, though
*/
if ((((pGC->fillStyle == FillTiled) ||
(pGC->fillStyle == FillStippled)) &&
!devPriv->pRotatedPixmap) ||
((pGC->fillStyle == FillOpaqueStippled) &&
((pGC->fgPixel & 1) != (pGC->bgPixel & 1)))
)
{
pGC->ops->PolyFillRect = miPolyFillRect;
}
else /* deal with solids and natural stipples and tiles */
{
pGC->ops->PolyFillRect = mfbPolyFillRect;
if ((pGC->fillStyle == FillSolid) ||
((pGC->fillStyle == FillOpaqueStippled) &&
((pGC->fgPixel & 1) == (pGC->bgPixel & 1))))
{
switch(devPriv->rop)
{
case RROP_WHITE:
devPriv->FillArea = mfbSolidWhiteArea;
break;
case RROP_BLACK:
devPriv->FillArea = mfbSolidBlackArea;
break;
case RROP_INVERT:
devPriv->FillArea = mfbSolidInvertArea;
break;
case RROP_NOP:
devPriv->FillArea = NoopDDA;
break;
}
}
else if (pGC->fillStyle == FillStippled)
{
switch(devPriv->rop)
{
case RROP_WHITE:
devPriv->FillArea = mfbStippleWhiteArea;
break;
case RROP_BLACK:
devPriv->FillArea = mfbStippleBlackArea;
break;
case RROP_INVERT:
devPriv->FillArea = mfbStippleInvertArea;
break;
case RROP_NOP:
devPriv->FillArea = NoopDDA;
break;
}
}
else /* deal with tiles */
{
extern void mfbTileArea32Copy(), mfbTileArea32General();
switch (pGC->alu)
{
case GXcopy:
devPriv->FillArea = mfbTileArea32Copy;
break;
default:
devPriv->FillArea = mfbTileArea32General;
break;
}
}
} /* end of natural rectangles */
} /* end of new_fill */
}
/* table to map alu(src, dst) to alu(~src, dst) */
int InverseAlu[16] = {
GXclear,
GXandInverted,
GXnor,
GXcopyInverted,
GXand,
GXnoop,
GXequiv,
GXorInverted,
GXandReverse,
GXxor,
GXinvert,
GXnand,
GXcopy,
GXor,
GXorReverse,
GXset
};
int
mfbReduceRop(alu, src)
register unsigned char alu;
register Pixel src;
{
int rop;
if ((src & 1) == 0) /* src is black */
{
switch(alu)
{
case GXclear:
rop = RROP_BLACK;
break;
case GXand:
rop = RROP_BLACK;
break;
case GXandReverse:
rop = RROP_BLACK;
break;
case GXcopy:
rop = RROP_BLACK;
break;
case GXandInverted:
rop = RROP_NOP;
break;
case GXnoop:
rop = RROP_NOP;
break;
case GXxor:
rop = RROP_NOP;
break;
case GXor:
rop = RROP_NOP;
break;
case GXnor:
rop = RROP_INVERT;
break;
case GXequiv:
rop = RROP_INVERT;
break;
case GXinvert:
rop = RROP_INVERT;
break;
case GXorReverse:
rop = RROP_INVERT;
break;
case GXcopyInverted:
rop = RROP_WHITE;
break;
case GXorInverted:
rop = RROP_WHITE;
break;
case GXnand:
rop = RROP_WHITE;
break;
case GXset:
rop = RROP_WHITE;
break;
}
}
else /* src is white */
{
switch(alu)
{
case GXclear:
rop = RROP_BLACK;
break;
case GXand:
rop = RROP_NOP;
break;
case GXandReverse:
rop = RROP_INVERT;
break;
case GXcopy:
rop = RROP_WHITE;
break;
case GXandInverted:
rop = RROP_BLACK;
break;
case GXnoop:
rop = RROP_NOP;
break;
case GXxor:
rop = RROP_INVERT;
break;
case GXor:
rop = RROP_WHITE;
break;
case GXnor:
rop = RROP_BLACK;
break;
case GXequiv:
rop = RROP_NOP;
break;
case GXinvert:
rop = RROP_INVERT;
break;
case GXorReverse:
rop = RROP_WHITE;
break;
case GXcopyInverted:
rop = RROP_BLACK;
break;
case GXorInverted:
rop = RROP_NOP;
break;
case GXnand:
rop = RROP_INVERT;
break;
case GXset:
rop = RROP_WHITE;
break;
}
}
return rop;
}
void
mfbDestroyClip(pGC)
GCPtr pGC;
{
if(pGC->clientClipType == CT_NONE)
return;
else if (pGC->clientClipType == CT_PIXMAP)
{
mfbDestroyPixmap((PixmapPtr)(pGC->clientClip));
}
else
{
/* we know we'll never have a list of rectangles, since
ChangeClip immediately turns them into a region
*/
(*pGC->pScreen->RegionDestroy)(pGC->clientClip);
}
pGC->clientClip = NULL;
pGC->clientClipType = CT_NONE;
}
void
mfbChangeClip(pGC, type, pvalue, nrects)
GCPtr pGC;
unsigned int type;
pointer pvalue;
int nrects;
{
mfbDestroyClip(pGC);
if(type == CT_PIXMAP)
{
/* convert the pixmap to a region */
pGC->clientClip = (pointer) (*pGC->pScreen->BitmapToRegion)((PixmapPtr)pvalue);
/* you wouldn't do this if you were leaving the pixmap in
rather than converting it.
*/
(*pGC->pScreen->DestroyPixmap)(pvalue);
}
else if (type == CT_REGION)
{
/* stuff the region in the GC */
pGC->clientClip = pvalue;
}
else if (type != CT_NONE)
{
pGC->clientClip = (pointer) (*pGC->pScreen->RectsToRegion)(nrects,
(xRectangle *)pvalue,
type);
xfree(pvalue);
}
pGC->clientClipType = (type != CT_NONE && pGC->clientClip) ? CT_REGION :
CT_NONE;
pGC->stateChanges |= GCClipMask;
}
void
mfbCopyClip (pgcDst, pgcSrc)
GCPtr pgcDst, pgcSrc;
{
RegionPtr prgnNew;
switch(pgcSrc->clientClipType)
{
case CT_PIXMAP:
((PixmapPtr) pgcSrc->clientClip)->refcnt++;
/* Fall through !! */
case CT_NONE:
mfbChangeClip(pgcDst, pgcSrc->clientClipType, pgcSrc->clientClip, 0);
break;
case CT_REGION:
prgnNew = (*pgcSrc->pScreen->RegionCreate)(NULL, 1);
(*pgcSrc->pScreen->RegionCopy)(prgnNew,
(RegionPtr)(pgcSrc->clientClip));
mfbChangeClip(pgcDst, CT_REGION, (pointer)prgnNew, 0);
break;
}
}