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Simplify error-handling in dixChangeGC. 

Signed-off-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
Jamey Sharp 2010-05-07 20:00:40 -07:00
parent 4080cd42fd
commit 2160ff5240
1 changed files with 46 additions and 71 deletions
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117
dix/gc.c
View File

@ -263,78 +263,68 @@ dixChangeGC(ClientPtr client, GC *pGC, BITS32 mask, CARD32 *pC32, ChangeGCValPtr
break;
}
case GCTile:
{
XID newpix = 0;
if (pUnion)
{
NEXT_PTR(PixmapPtr, pPixmap);
rc = Success;
}
else
{
XID newpix;
NEXTVAL(XID, newpix);
rc = dixLookupResourceByType((pointer *)&pPixmap, newpix,
RT_PIXMAP, client, DixReadAccess);
if (rc != Success)
{
clientErrorValue = newpix;
error = (rc == BadValue) ? BadPixmap : rc;
break;
}
}
if (rc == Success)
if ((pPixmap->drawable.depth != pGC->depth) ||
(pPixmap->drawable.pScreen != pGC->pScreen))
{
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;
}
error = BadMatch;
}
else
{
clientErrorValue = newpix;
error = (rc == BadValue) ? BadPixmap : rc;
pPixmap->refcnt++;
if (!pGC->tileIsPixel)
(* pGC->pScreen->DestroyPixmap)(pGC->tile.pixmap);
pGC->tileIsPixel = FALSE;
pGC->tile.pixmap = pPixmap;
}
break;
}
case GCStipple:
{
XID newstipple = 0;
if (pUnion)
{
NEXT_PTR(PixmapPtr, pPixmap);
rc = Success;
}
else
{
XID newstipple;
NEXTVAL(XID, newstipple)
rc = dixLookupResourceByType((pointer *)&pPixmap, newstipple,
RT_PIXMAP, client, DixReadAccess);
if (rc != Success)
{
clientErrorValue = newstipple;
error = (rc == BadValue) ? BadPixmap : rc;
break;
}
}
if (rc == Success)
if ((pPixmap->drawable.depth != 1) ||
(pPixmap->drawable.pScreen != pGC->pScreen))
{
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;
}
error = BadMatch;
}
else
{
clientErrorValue = newstipple;
error = (rc == BadValue) ? BadPixmap : rc;
pPixmap->refcnt++;
if (pGC->stipple)
(* pGC->pScreen->DestroyPixmap)(pGC->stipple);
pGC->stipple = pPixmap;
}
break;
}
case GCTileStipXOrigin:
NEXTVAL(INT16, pGC->patOrg.x);
break;
@ -344,30 +334,27 @@ dixChangeGC(ClientPtr client, GC *pGC, BITS32 mask, CARD32 *pC32, ChangeGCValPtr
case GCFont:
{
FontPtr pFont;
XID newfont = 0;
if (pUnion)
{
NEXT_PTR(FontPtr, pFont);
rc = Success;
}
else
{
XID newfont;
NEXTVAL(XID, newfont)
rc = dixLookupResourceByType((pointer *)&pFont, newfont,
RT_FONT, client, DixUseAccess);
if (rc != Success)
{
clientErrorValue = newfont;
error = (rc == BadValue) ? BadFont : rc;
break;
}
}
if (rc == Success)
{
pFont->refcnt++;
if (pGC->font)
CloseFont(pGC->font, (Font)0);
pGC->font = pFont;
}
else
{
clientErrorValue = newfont;
error = (rc == BadValue) ? BadFont : rc;
}
pFont->refcnt++;
if (pGC->font)
CloseFont(pGC->font, (Font)0);
pGC->font = pFont;
break;
}
case GCSubwindowMode:
@ -403,22 +390,16 @@ dixChangeGC(ClientPtr client, GC *pGC, BITS32 mask, CARD32 *pC32, ChangeGCValPtr
NEXTVAL(INT16, pGC->clipOrg.y);
break;
case GCClipMask:
{
Pixmap pid = 0;
int clipType = 0;
if (pUnion)
{
NEXT_PTR(PixmapPtr, pPixmap);
}
else
{
Pixmap pid;
NEXTVAL(Pixmap, pid)
if (pid == None)
{
clipType = CT_NONE;
pPixmap = NullPixmap;
}
else {
rc = dixLookupResourceByType((pointer *)&pPixmap, pid,
RT_PIXMAP, client,
@ -426,6 +407,7 @@ dixChangeGC(ClientPtr client, GC *pGC, BITS32 mask, CARD32 *pC32, ChangeGCValPtr
if (rc != Success) {
clientErrorValue = pid;
error = (rc == BadValue) ? BadPixmap : rc;
break;
}
}
}
@ -436,20 +418,13 @@ dixChangeGC(ClientPtr client, GC *pGC, BITS32 mask, CARD32 *pC32, ChangeGCValPtr
(pPixmap->drawable.pScreen != pGC->pScreen))
{
error = BadMatch;
break;
}
else
{
clipType = CT_PIXMAP;
pPixmap->refcnt++;
}
}
if(error == Success)
{
(*pGC->funcs->ChangeClip)(pGC, clipType,
(pointer)pPixmap, 0);
pPixmap->refcnt++;
}
(*pGC->funcs->ChangeClip)(pGC, pPixmap ? CT_PIXMAP : CT_NONE,
(pointer)pPixmap, 0);
break;
}
case GCDashOffset:
NEXTVAL(INT16, pGC->dashOffset);
break;