_X_EXPORT int
dixChangeGC(ClientPtr client, register GC *pGC, register BITS32 mask, CARD32 *pC32, ChangeGCValPtr pUnion)
{
register BITS32 index2;
register int error = 0;
PixmapPtr pPixmap;
BITS32 maskQ;
assert( (pC32 && !pUnion) || (!pC32 && pUnion) );
pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
maskQ = mask; /* save these for when we walk the GCque */
while (mask && !error)
{
index2 = (BITS32) lowbit (mask);
mask &= ~index2;
pGC->stateChanges |= index2;
switch (index2)
{
case GCFunction:
{
CARD8 newalu;
NEXTVAL(CARD8, newalu);
if (newalu <= GXset)
pGC->alu = newalu;
else
{
clientErrorValue = newalu;
error = BadValue;
}
break;
}
case GCPlaneMask:
NEXTVAL(unsigned long, pGC->planemask);
break;
case GCForeground:
NEXTVAL(unsigned long, pGC->fgPixel);
/*
* this is for CreateGC
*/
if (!pGC->tileIsPixel && !pGC->tile.pixmap)
{
pGC->tileIsPixel = TRUE;
pGC->tile.pixel = pGC->fgPixel;
}
break;
case GCBackground:
NEXTVAL(unsigned long, pGC->bgPixel);
break;
case GCLineWidth: /* ??? line width is a CARD16 */
NEXTVAL(CARD16, pGC->lineWidth);
break;
case GCLineStyle:
{
unsigned int newlinestyle;
NEXTVAL(unsigned int, newlinestyle);
if (newlinestyle <= LineDoubleDash)
pGC->lineStyle = newlinestyle;
else
{
clientErrorValue = newlinestyle;
error = BadValue;
}
break;
}
case GCCapStyle:
{
unsigned int newcapstyle;
NEXTVAL(unsigned int, newcapstyle);
if (newcapstyle <= CapProjecting)
pGC->capStyle = newcapstyle;
else
{
clientErrorValue = newcapstyle;
error = BadValue;
}
break;
}
case GCJoinStyle:
{
unsigned int newjoinstyle;
NEXTVAL(unsigned int, newjoinstyle);
if (newjoinstyle <= JoinBevel)
pGC->joinStyle = newjoinstyle;
else
{
clientErrorValue = newjoinstyle;
error = BadValue;
}
break;
}
case GCFillStyle:
{
unsigned int newfillstyle;
NEXTVAL(unsigned int, newfillstyle);
if (newfillstyle <= FillOpaqueStippled)
pGC->fillStyle = newfillstyle;
else
{
clientErrorValue = newfillstyle;
error = BadValue;
}
break;
}
case GCFillRule:
{
unsigned int newfillrule;
NEXTVAL(unsigned int, newfillrule);
if (newfillrule <= WindingRule)
pGC->fillRule = newfillrule;
else
{
clientErrorValue = newfillrule;
error = BadValue;
}
break;
}
case GCTile:
{
XID newpix = 0;
if (pUnion)
{
NEXT_PTR(PixmapPtr, pPixmap);
}
else
{
NEXTVAL(XID, newpix);
pPixmap = (PixmapPtr)SecurityLookupIDByType(client,
newpix, RT_PIXMAP, SecurityReadAccess);
}
if (pPixmap)
{
if ((pPixmap->drawable.depth != pGC->depth) ||
(pPixmap->drawable.pScreen != pGC->pScreen))
{
error = BadMatch;
}
else
{
pPixmap->refcnt++;
if (!pGC->tileIsPixel)
(* pGC->pScreen->DestroyPixmap)(pGC->tile.pixmap);
pGC->tileIsPixel = FALSE;
pGC->tile.pixmap = pPixmap;
}
}
else
{
clientErrorValue = newpix;
error = BadPixmap;
}
break;
}
case GCStipple:
{
XID newstipple = 0;
if (pUnion)
{
NEXT_PTR(PixmapPtr, pPixmap);
}
else
{
NEXTVAL(XID, newstipple)
pPixmap = (PixmapPtr)SecurityLookupIDByType(client,
newstipple, RT_PIXMAP, SecurityReadAccess);
}
if (pPixmap)
{
if ((pPixmap->drawable.depth != 1) ||
(pPixmap->drawable.pScreen != pGC->pScreen))
{
error = BadMatch;
}
else
{
pPixmap->refcnt++;
if (pGC->stipple)
(* pGC->pScreen->DestroyPixmap)(pGC->stipple);
pGC->stipple = pPixmap;
}
}
else
{
clientErrorValue = newstipple;
error = BadPixmap;
}
break;
}
case GCTileStipXOrigin:
NEXTVAL(INT16, pGC->patOrg.x);
break;
case GCTileStipYOrigin:
NEXTVAL(INT16, pGC->patOrg.y);
break;
case GCFont:
{
FontPtr pFont;
XID newfont = 0;
if (pUnion)
{
NEXT_PTR(FontPtr, pFont);
}
else
{
NEXTVAL(XID, newfont)
pFont = (FontPtr)SecurityLookupIDByType(client, newfont,
RT_FONT, SecurityReadAccess);
}
if (pFont)
{
pFont->refcnt++;
if (pGC->font)
CloseFont(pGC->font, (Font)0);
pGC->font = pFont;
}
else
{
clientErrorValue = newfont;
error = BadFont;
}
break;
}
case GCSubwindowMode:
{
unsigned int newclipmode;
NEXTVAL(unsigned int, newclipmode);
if (newclipmode <= IncludeInferiors)
pGC->subWindowMode = newclipmode;
else
{
clientErrorValue = newclipmode;
error = BadValue;
}
break;
}
case GCGraphicsExposures:
{
unsigned int newge;
NEXTVAL(unsigned int, newge);
if (newge <= xTrue)
pGC->graphicsExposures = newge;
else
{
clientErrorValue = newge;
error = BadValue;
}
break;
}
case GCClipXOrigin:
NEXTVAL(INT16, pGC->clipOrg.x);
break;
case GCClipYOrigin:
NEXTVAL(INT16, pGC->clipOrg.y);
break;
case GCClipMask:
{
Pixmap pid = 0;
int clipType = 0;
if (pUnion)
{
NEXT_PTR(PixmapPtr, pPixmap);
}
else
{
NEXTVAL(Pixmap, pid)
if (pid == None)
{
clipType = CT_NONE;
pPixmap = NullPixmap;
}
else
pPixmap = (PixmapPtr)SecurityLookupIDByType(client,
pid, RT_PIXMAP, SecurityReadAccess);
}
if (pPixmap)
{
if ((pPixmap->drawable.depth != 1) ||
(pPixmap->drawable.pScreen != pGC->pScreen))
{
error = BadMatch;
}
else
{
clipType = CT_PIXMAP;
pPixmap->refcnt++;
}
}
else if (!pUnion && (pid != None))
{
clientErrorValue = pid;
error = BadPixmap;
}
if(error == Success)
{
(*pGC->funcs->ChangeClip)(pGC, clipType,
(pointer)pPixmap, 0);
}
break;
}
case GCDashOffset:
NEXTVAL(INT16, pGC->dashOffset);
break;
case GCDashList:
{
CARD8 newdash;
NEXTVAL(CARD8, newdash);
if (newdash == 4)
{
if (pGC->dash != DefaultDash)
{
xfree(pGC->dash);
pGC->numInDashList = 2;
pGC->dash = DefaultDash;
}
}
else if (newdash != 0)
{
unsigned char *dash;
dash = (unsigned char *)xalloc(2 * sizeof(unsigned char));
if (dash)
{
if (pGC->dash != DefaultDash)
xfree(pGC->dash);
pGC->numInDashList = 2;
pGC->dash = dash;
dash[0] = newdash;
dash[1] = newdash;
}
else
error = BadAlloc;
}
else
{
clientErrorValue = newdash;
error = BadValue;
}
break;
}
case GCArcMode:
{
unsigned int newarcmode;
NEXTVAL(unsigned int, newarcmode);
if (newarcmode <= ArcPieSlice)
pGC->arcMode = newarcmode;
else
{
clientErrorValue = newarcmode;
error = BadValue;
}
break;
}
default:
clientErrorValue = maskQ;
error = BadValue;
break;
}
} /* end while mask && !error */
if (pGC->fillStyle == FillTiled && pGC->tileIsPixel)
{
if (!CreateDefaultTile (pGC))
{
pGC->fillStyle = FillSolid;
error = BadAlloc;
}
}
(*pGC->funcs->ChangeGC)(pGC, maskQ);
return error;
}
_X_EXPORT int
CopyGC(register GC *pgcSrc, register GC *pgcDst, register BITS32 mask)
{
register BITS32 index2;
BITS32 maskQ;
int error = 0;
if (pgcSrc == pgcDst)
return Success;
pgcDst->serialNumber |= GC_CHANGE_SERIAL_BIT;
pgcDst->stateChanges |= mask;
maskQ = mask;
while (mask)
{
index2 = (BITS32) lowbit (mask);
mask &= ~index2;
switch (index2)
{
case GCFunction:
pgcDst->alu = pgcSrc->alu;
break;
case GCPlaneMask:
pgcDst->planemask = pgcSrc->planemask;
break;
case GCForeground:
pgcDst->fgPixel = pgcSrc->fgPixel;
break;
case GCBackground:
pgcDst->bgPixel = pgcSrc->bgPixel;
break;
case GCLineWidth:
pgcDst->lineWidth = pgcSrc->lineWidth;
break;
case GCLineStyle:
pgcDst->lineStyle = pgcSrc->lineStyle;
break;
case GCCapStyle:
pgcDst->capStyle = pgcSrc->capStyle;
break;
case GCJoinStyle:
pgcDst->joinStyle = pgcSrc->joinStyle;
break;
case GCFillStyle:
pgcDst->fillStyle = pgcSrc->fillStyle;
break;
case GCFillRule:
pgcDst->fillRule = pgcSrc->fillRule;
break;
case GCTile:
{
if (EqualPixUnion(pgcDst->tileIsPixel,
pgcDst->tile,
pgcSrc->tileIsPixel,
pgcSrc->tile))
{
break;
}
if (!pgcDst->tileIsPixel)
(* pgcDst->pScreen->DestroyPixmap)(pgcDst->tile.pixmap);
pgcDst->tileIsPixel = pgcSrc->tileIsPixel;
pgcDst->tile = pgcSrc->tile;
if (!pgcDst->tileIsPixel)
pgcDst->tile.pixmap->refcnt++;
break;
}
case GCStipple:
{
if (pgcDst->stipple == pgcSrc->stipple)
break;
if (pgcDst->stipple)
(* pgcDst->pScreen->DestroyPixmap)(pgcDst->stipple);
pgcDst->stipple = pgcSrc->stipple;
if (pgcDst->stipple)
pgcDst->stipple->refcnt ++;
break;
}
case GCTileStipXOrigin:
pgcDst->patOrg.x = pgcSrc->patOrg.x;
break;
case GCTileStipYOrigin:
pgcDst->patOrg.y = pgcSrc->patOrg.y;
break;
case GCFont:
if (pgcDst->font == pgcSrc->font)
break;
if (pgcDst->font)
CloseFont(pgcDst->font, (Font)0);
if ((pgcDst->font = pgcSrc->font) != NullFont)
(pgcDst->font)->refcnt++;
break;
case GCSubwindowMode:
pgcDst->subWindowMode = pgcSrc->subWindowMode;
break;
case GCGraphicsExposures:
pgcDst->graphicsExposures = pgcSrc->graphicsExposures;
break;
case GCClipXOrigin:
pgcDst->clipOrg.x = pgcSrc->clipOrg.x;
break;
case GCClipYOrigin:
pgcDst->clipOrg.y = pgcSrc->clipOrg.y;
break;
case GCClipMask:
(* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);
break;
case GCDashOffset:
pgcDst->dashOffset = pgcSrc->dashOffset;
break;
case GCDashList:
if (pgcSrc->dash == DefaultDash)
{
if (pgcDst->dash != DefaultDash)
{
xfree(pgcDst->dash);
pgcDst->numInDashList = pgcSrc->numInDashList;
pgcDst->dash = pgcSrc->dash;
}
}
else
{
unsigned char *dash;
unsigned int i;
dash = (unsigned char *)xalloc(pgcSrc->numInDashList *
sizeof(unsigned char));
if (dash)
{
if (pgcDst->dash != DefaultDash)
xfree(pgcDst->dash);
pgcDst->numInDashList = pgcSrc->numInDashList;
pgcDst->dash = dash;
for (i=0; i<pgcSrc->numInDashList; i++)
dash[i] = pgcSrc->dash[i];
}
else
error = BadAlloc;
}
break;
case GCArcMode:
pgcDst->arcMode = pgcSrc->arcMode;
break;
default:
clientErrorValue = maskQ;
error = BadValue;
break;
}
}
if (pgcDst->fillStyle == FillTiled && pgcDst->tileIsPixel)
{
if (!CreateDefaultTile (pgcDst))
{
pgcDst->fillStyle = FillSolid;
error = BadAlloc;
}
}
(*pgcDst->funcs->CopyGC) (pgcSrc, maskQ, pgcDst);
return error;
}
int
ChangeGC(ClientPtr client, GC * pGC, BITS32 mask, ChangeGCValPtr pUnion)
{
BITS32 index2;
int error = 0;
PixmapPtr pPixmap;
BITS32 maskQ;
assert(pUnion);
pGC->serialNumber |= GC_CHANGE_SERIAL_BIT;
maskQ = mask; /* save these for when we walk the GCque */
while (mask && !error) {
index2 = (BITS32) lowbit(mask);
mask &= ~index2;
pGC->stateChanges |= index2;
switch (index2) {
case GCFunction:
{
CARD8 newalu;
NEXTVAL(CARD8, newalu);
if (newalu <= GXset)
pGC->alu = newalu;
else {
if (client)
client->errorValue = newalu;
error = BadValue;
}
break;
}
case GCPlaneMask:
NEXTVAL(unsigned long, pGC->planemask);
break;
case GCForeground:
NEXTVAL(unsigned long, pGC->fgPixel);
/*
* this is for CreateGC
*/
if (!pGC->tileIsPixel && !pGC->tile.pixmap) {
pGC->tileIsPixel = TRUE;
pGC->tile.pixel = pGC->fgPixel;
}
break;
case GCBackground:
NEXTVAL(unsigned long, pGC->bgPixel);
break;
case GCLineWidth: /* ??? line width is a CARD16 */
NEXTVAL(CARD16, pGC->lineWidth);
break;
case GCLineStyle:
{
unsigned int newlinestyle;
NEXTVAL(unsigned int, newlinestyle);
if (newlinestyle <= LineDoubleDash)
pGC->lineStyle = newlinestyle;
else {
if (client)
client->errorValue = newlinestyle;
error = BadValue;
}
break;
}
case GCCapStyle:
{
unsigned int newcapstyle;
NEXTVAL(unsigned int, newcapstyle);
if (newcapstyle <= CapProjecting)
pGC->capStyle = newcapstyle;
else {
if (client)
client->errorValue = newcapstyle;
error = BadValue;
}
break;
}
case GCJoinStyle:
{
unsigned int newjoinstyle;
NEXTVAL(unsigned int, newjoinstyle);
if (newjoinstyle <= JoinBevel)
pGC->joinStyle = newjoinstyle;
else {
if (client)
client->errorValue = newjoinstyle;
error = BadValue;
}
break;
}
case GCFillStyle:
{
unsigned int newfillstyle;
NEXTVAL(unsigned int, newfillstyle);
if (newfillstyle <= FillOpaqueStippled)
pGC->fillStyle = newfillstyle;
else {
if (client)
client->errorValue = newfillstyle;
error = BadValue;
}
break;
}
case GCFillRule:
{
unsigned int newfillrule;
NEXTVAL(unsigned int, newfillrule);
if (newfillrule <= WindingRule)
pGC->fillRule = newfillrule;
else {
if (client)
client->errorValue = newfillrule;
error = BadValue;
}
break;
}
case GCTile:
NEXT_PTR(PixmapPtr, pPixmap);
if ((pPixmap->drawable.depth != pGC->depth) ||
(pPixmap->drawable.pScreen != pGC->pScreen)) {
error = BadMatch;
}
else {
pPixmap->refcnt++;
if (!pGC->tileIsPixel)
(*pGC->pScreen->DestroyPixmap) (pGC->tile.pixmap);
pGC->tileIsPixel = FALSE;
pGC->tile.pixmap = pPixmap;
}
break;
case GCStipple:
NEXT_PTR(PixmapPtr, pPixmap);
if (pPixmap && ((pPixmap->drawable.depth != 1) ||
(pPixmap->drawable.pScreen != pGC->pScreen)))
{
error = BadMatch;
}
else {
if (pPixmap)
pPixmap->refcnt++;
if (pGC->stipple)
(*pGC->pScreen->DestroyPixmap) (pGC->stipple);
pGC->stipple = pPixmap;
}
break;
case GCTileStipXOrigin:
NEXTVAL(INT16, pGC->patOrg.x);
break;
case GCTileStipYOrigin:
NEXTVAL(INT16, pGC->patOrg.y);
break;
case GCFont:
{
FontPtr pFont;
NEXT_PTR(FontPtr, pFont);
pFont->refcnt++;
if (pGC->font)
CloseFont(pGC->font, (Font) 0);
pGC->font = pFont;
break;
}
case GCSubwindowMode:
{
unsigned int newclipmode;
NEXTVAL(unsigned int, newclipmode);
if (newclipmode <= IncludeInferiors)
pGC->subWindowMode = newclipmode;
else {
if (client)
client->errorValue = newclipmode;
error = BadValue;
}
break;
}
case GCGraphicsExposures:
{
unsigned int newge;
NEXTVAL(unsigned int, newge);
if (newge <= xTrue)
pGC->graphicsExposures = newge;
else {
if (client)
client->errorValue = newge;
error = BadValue;
}
break;
}
case GCClipXOrigin:
NEXTVAL(INT16, pGC->clipOrg.x);
break;
case GCClipYOrigin:
NEXTVAL(INT16, pGC->clipOrg.y);
break;
case GCClipMask:
NEXT_PTR(PixmapPtr, pPixmap);
if (pPixmap) {
if ((pPixmap->drawable.depth != 1) ||
(pPixmap->drawable.pScreen != pGC->pScreen)) {
error = BadMatch;
break;
}
pPixmap->refcnt++;
}
(*pGC->funcs->ChangeClip) (pGC, pPixmap ? CT_PIXMAP : CT_NONE,
(void *) pPixmap, 0);
break;
case GCDashOffset:
NEXTVAL(INT16, pGC->dashOffset);
break;
case GCDashList:
{
CARD8 newdash;
NEXTVAL(CARD8, newdash);
if (newdash == 4) {
if (pGC->dash != DefaultDash) {
free(pGC->dash);
pGC->numInDashList = 2;
pGC->dash = DefaultDash;
}
}
else if (newdash != 0) {
unsigned char *dash;
dash = malloc(2 * sizeof(unsigned char));
if (dash) {
if (pGC->dash != DefaultDash)
free(pGC->dash);
pGC->numInDashList = 2;
pGC->dash = dash;
dash[0] = newdash;
dash[1] = newdash;
}
else
error = BadAlloc;
}
else {
if (client)
client->errorValue = newdash;
error = BadValue;
}
break;
}
case GCArcMode:
{
unsigned int newarcmode;
NEXTVAL(unsigned int, newarcmode);
if (newarcmode <= ArcPieSlice)
pGC->arcMode = newarcmode;
else {
if (client)
client->errorValue = newarcmode;
error = BadValue;
}
break;
}
default:
if (client)
client->errorValue = maskQ;
error = BadValue;
break;
}
} /* end while mask && !error */
if (pGC->fillStyle == FillTiled && pGC->tileIsPixel) {
if (!CreateDefaultTile(pGC)) {
pGC->fillStyle = FillSolid;
error = BadAlloc;
}
}
(*pGC->funcs->ChangeGC) (pGC, maskQ);
return error;
}
