xserver git update 21/5/2010

1 files changed, 18 insertions, 19 deletions

diff --git a/xorg-server/dix/gc.c b/xorg-server/dix/gc.c
index c93b04496..d39a5a76a 100644
--- a/xorg-server/dix/gc.c
+++ b/xorg-server/dix/gc.c
@@ -537,6 +537,9 @@ CreateGC(DrawablePtr pDrawable, BITS32 mask, XID *pval, int *pStatus,
     pGC->stipple = pGC->pScreen->PixmapPerDepth[0];

     pGC->stipple->refcnt++;

 

+    /* this is not a scratch GC */

+    pGC->scratch_inuse = FALSE;

+

     /* security creation/labeling check */

     *pStatus = XaceHook(XACE_RESOURCE_ACCESS, client, gcid, RT_GC, pGC,

 			RT_NONE, NULL, DixCreateAccess|DixSetAttrAccess);

@@ -844,6 +847,9 @@ CreateScratchGC(ScreenPtr pScreen, unsigned depth)
     pGC->lastWinOrg.x = 0;

     pGC->lastWinOrg.y = 0;

 

+    /* scratch GCs in the GCperDepth pool start off unused */

+    pGC->scratch_inuse = FALSE;

+

     pGC->stateChanges = GCAllBits;

     if (!(*pScreen->CreateGC)(pGC))

     {

@@ -864,8 +870,10 @@ FreeGCperDepth(int screenNum)
     ppGC = pScreen->GCperDepth;

 

     for (i = 0; i <= pScreen->numDepths; i++)

+    {

 	(void)FreeGC(ppGC[i], (XID)0);

-    pScreen->rgf = ~0L;

+	ppGC[i] = NULL;

+    }

 }

 

 

@@ -878,7 +886,6 @@ CreateGCperDepth(int screenNum)
     GCPtr *ppGC;

 

     pScreen = screenInfo.screens[screenNum];

-    pScreen->rgf = 0;

     ppGC = pScreen->GCperDepth;

     /* do depth 1 separately because it's not included in list */

     if (!(ppGC[0] = CreateScratchGC(pScreen, 1)))

@@ -1097,12 +1104,11 @@ GetScratchGC(unsigned depth, ScreenPtr pScreen)
     GCPtr pGC;

 

     for (i=0; i<=pScreen->numDepths; i++)

-        if ( pScreen->GCperDepth[i]->depth == depth &&

-	     !(pScreen->rgf & (1L << (i+1)))

-	   )

+    {

+	pGC = pScreen->GCperDepth[i];

+	if (pGC && pGC->depth == depth && !pGC->scratch_inuse)

 	{

-	    pScreen->rgf |= (1L << (i+1));

-            pGC = (pScreen->GCperDepth[i]);

+	    pGC->scratch_inuse = TRUE;

 

 	    pGC->alu = GXcopy;

 	    pGC->planemask = ~0;

@@ -1127,6 +1133,7 @@ GetScratchGC(unsigned depth, ScreenPtr pScreen)
 	    pGC->stateChanges = GCAllBits;

 	    return pGC;

 	}

+    }

     /* if we make it this far, need to roll our own */

     pGC = CreateScratchGC(pScreen, depth);

     if (pGC)

@@ -1142,16 +1149,8 @@ mark it as available.
 void

 FreeScratchGC(GCPtr pGC)

 {

-    ScreenPtr pScreen = pGC->pScreen;

-    int i;

-

-    for (i=0; i<=pScreen->numDepths; i++)

-    {

-        if ( pScreen->GCperDepth[i] == pGC)

-	{

-	    pScreen->rgf &= ~(1L << (i+1));

-	    return;

-	}

-    }

-    (void)FreeGC(pGC, (GContext)0);

+    if (pGC->scratch_inuse)

+	pGC->scratch_inuse = FALSE;

+    else

+	FreeGC(pGC, (GContext)0);

 }