xserver: Branch 'server-1.8-branch' - 2 commits

Peter Hutterer whot at kemper.freedesktop.org
Thu Apr 22 22:27:34 PDT 2010


 hw/vfb/InitOutput.c |    2 
 mi/midispcur.c      |  270 ++++++++++++++++++++++++++++++----------------------
 2 files changed, 160 insertions(+), 112 deletions(-)

New commits:
commit 5d757096fc72233a9ff520149ec7cfd1ced457d8
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date:   Fri Apr 23 13:42:34 2010 +1000

    Xvfb: Usage message typo fix.
    
    Signed-off-by: Keith Packard <keithp at keithp.com>
    (cherry picked from commit 0782894b5702adcf6f4a90861793b717f3856fa5)
    
    Conflicts:
    
    	hw/vfb/InitOutput.c
    
    Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>

diff --git a/hw/vfb/InitOutput.c b/hw/vfb/InitOutput.c
index e7dd1d9..841d762 100644
--- a/hw/vfb/InitOutput.c
+++ b/hw/vfb/InitOutput.c
@@ -249,7 +249,7 @@ ddxUseMsg(void)
     ErrorF("-screen scrn WxHxD     set screen's width, height, depth\n");
     ErrorF("-pixdepths list-of-int support given pixmap depths\n");
 #ifdef RENDER
-    ErrorF("+/-render		   turn on/of RENDER extension support"
+    ErrorF("+/-render		   turn on/off RENDER extension support"
 	   "(default on)\n");
 #endif
     ErrorF("-linebias n            adjust thin line pixelization\n");
commit feb39870e0d2c5917c8da1951c721f6f72cb4d39
Author: Peter Hutterer <peter.hutterer at who-t.net>
Date:   Wed Apr 21 11:47:24 2010 +1000

    Revert "mi: don't thrash resources when displaying the software cursor across screens"
    
    This commit leads to a segfault on the very first XTS test case.
    
    Backtrace:
    0: /opt/xorg/bin/Xorg (xorg_backtrace+0x3b) [0x80a33db]
    1: /opt/xorg/bin/Xorg (0x8048000+0x62a75) [0x80aaa75]
    2: (vdso) (__kernel_rt_sigreturn+0x0) [0x5d140c]
    3: /lib/libc.so.6 (0x9bb000+0x73579) [0xa2e579]
    4: /lib/libc.so.6 (realloc+0xe0) [0xa2e830]
    5: /opt/xorg/bin/Xorg (Xrealloc+0x33) [0x80a3f33]
    6: /opt/xorg/bin/Xorg (0x8048000+0x1ab79) [0x8062b79]
    7: /opt/xorg/bin/Xorg (0x8048000+0x1ac4e) [0x8062c4e]
    8: /opt/xorg/bin/Xorg (RegisterExtensionNames+0x2ce) [0x8062fbe]
    9: /opt/xorg/bin/Xorg (AddExtension+0x19a) [0x807bd7a]
    10: /opt/xorg//lib/xorg/modules/extensions/libextmod.so (0x728000+0x1169a)
    [0x73969a]
    11: /opt/xorg/bin/Xorg (InitExtensions+0x85) [0x80c0eb5]
    12: /opt/xorg/bin/Xorg (0x8048000+0x1a51d) [0x806251d]
    13: /lib/libc.so.6 (__libc_start_main+0xe6) [0x9d1bb6]
    14: /opt/xorg/bin/Xorg (0x8048000+0x1a2a1) [0x80622a1]
    Segmentation fault at address 0x10b2d5f8
    
    valgrind output:
    ==5069== Invalid read of size 4
    ==5069==    at 0x80F928D: FreePicture (picture.c:1531)
    ==5069==    by 0x818DDEF: miDCDeviceCleanup (midispcur.c:867)
    ==5069==    by 0x81B97F0: miSpriteDeviceCursorCleanup (misprite.c:968)
    ==5069==    by 0x80995FA: miPointerDeviceCleanup (mipointer.c:292)
    ==5069==    by 0x807973E: CloseDevice (devices.c:840)
    ==5069==    by 0x80799B6: CloseDownDevices (devices.c:933)
    ==5069==    by 0x8062705: main (main.c:309)
    ==5069==  Address 0x4cce844 is 12 bytes inside a block of size 84 free'd
    ==5069==    at 0x40057F6: free (vg_replace_malloc.c:325)
    ==5069==    by 0x80A3DE0: Xfree (utils.c:1154)
    ==5069==    by 0x80F9332: FreePicture (picture.c:1576)
    ==5069==    by 0x80FBB4B: PictureDestroyWindow (picture.c:69)
    ==5069==    by 0x810B1A3: damageDestroyWindow (damage.c:1840)
    ==5069==    by 0x80864F1: FreeWindowResources (window.c:846)
    ==5069==    by 0x8086812: DeleteWindow (window.c:925)
    ==5069==    by 0x806B53E: FreeClientResources (resource.c:806)
    ==5069==    by 0x806B60F: FreeAllResources (resource.c:823)
    ==5069==    by 0x80626E4: main (main.c:299)
    ==5069==
    ==5069== Invalid write of size 4
    ==5069==    at 0x80F9295: FreePicture (picture.c:1531)
    ==5069==    by 0x818DDEF: miDCDeviceCleanup (midispcur.c:867)
    ==5069==    by 0x81B97F0: miSpriteDeviceCursorCleanup (misprite.c:968)
    ==5069==    by 0x80995FA: miPointerDeviceCleanup (mipointer.c:292)
    ==5069==    by 0x807973E: CloseDevice (devices.c:840)
    ==5069==    by 0x80799B6: CloseDownDevices (devices.c:933)
    ==5069==    by 0x8062705: main (main.c:309)
    ==5069==  Address 0x4cce844 is 12 bytes inside a block of size 84 free'd
    ==5069==    at 0x40057F6: free (vg_replace_malloc.c:325)
    ==5069==    by 0x80A3DE0: Xfree (utils.c:1154)
    ==5069==    by 0x80F9332: FreePicture (picture.c:1576)
    ==5069==    by 0x80FBB4B: PictureDestroyWindow (picture.c:69)
    ==5069==    by 0x810B1A3: damageDestroyWindow (damage.c:1840)
    ==5069==    by 0x80864F1: FreeWindowResources (window.c:846)
    ==5069==    by 0x8086812: DeleteWindow (window.c:925)
    ==5069==    by 0x806B53E: FreeClientResources (resource.c:806)
    ==5069==    by 0x806B60F: FreeAllResources (resource.c:823)
    ==5069==    by 0x80626E4: main (main.c:299)
    
    XTS test case: Xproto pAllocColor
    
    This reverts commit 00b8b7ad61b6f818271fb4d1e383113170309d72.
    
    Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>

diff --git a/mi/midispcur.c b/mi/midispcur.c
index 3a31b74..55d65d5 100644
--- a/mi/midispcur.c
+++ b/mi/midispcur.c
@@ -59,9 +59,9 @@ static DevPrivateKey miDCScreenKey = &miDCScreenKeyIndex;
 
 static Bool	miDCCloseScreen(int index, ScreenPtr pScreen);
 
-/* per device per-screen private data */
-static int miDCSpriteKeyIndex[MAXSCREENS];
-static DevPrivateKey miDCSpriteKey = miDCSpriteKeyIndex;
+/* per device private data */
+static int miDCSpriteKeyIndex;
+static DevPrivateKey miDCSpriteKey = &miDCSpriteKeyIndex;
 
 typedef struct {
     GCPtr	    pSourceGC, pMaskGC;
@@ -75,10 +75,10 @@ typedef struct {
 #endif
 } miDCBufferRec, *miDCBufferPtr;
 
-#define MIDCBUFFER(dev, screen) \
+#define MIDCBUFFER(dev) \
  ((DevHasCursor(dev)) ? \
-  (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey + (screen)->myNum) : \
-  (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey + (screen)->myNum))
+  (miDCBufferPtr)dixLookupPrivate(&dev->devPrivates, miDCSpriteKey) : \
+  (miDCBufferPtr)dixLookupPrivate(&dev->u.master->devPrivates, miDCSpriteKey))
 
 /* 
  * The core pointer buffer will point to the index of the virtual core pointer
@@ -158,6 +158,10 @@ miDCInitialize (ScreenPtr pScreen, miPointerScreenFuncPtr screenFuncs)
     return TRUE;
 }
 
+#define tossGC(gc)  (gc ? FreeGC (gc, (GContext) 0) : 0)
+#define tossPix(pix)	(pix ? (*pScreen->DestroyPixmap) (pix) : TRUE)
+#define tossPict(pict)	(pict ? FreePicture (pict, 0) : 0)
+
 static Bool
 miDCCloseScreen (int index, ScreenPtr pScreen)
 {
@@ -179,6 +183,7 @@ miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor)
 }
 
 #ifdef ARGB_CURSOR
+#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win))
 
 static VisualPtr
 miDCGetWindowVisual (WindowPtr pWin)
@@ -410,8 +415,12 @@ miDCPutBits (
     (*maskGC->ops->PushPixels) (maskGC, pPriv->maskBits, pDrawable, w, h, x, y);
 }
 
+#define EnsureGC(gc,win) (gc || miDCMakeGC(&gc, win))
+
 static GCPtr
-miDCMakeGC(WindowPtr pWin)
+miDCMakeGC(
+    GCPtr	*ppGC,
+    WindowPtr	pWin)
 {
     GCPtr pGC;
     int   status;
@@ -422,6 +431,7 @@ miDCMakeGC(WindowPtr pWin)
     pGC = CreateGC((DrawablePtr)pWin,
 		   GCSubwindowMode|GCGraphicsExposures, gcvals, &status,
 		   (XID)0, serverClient);
+    *ppGC = pGC;
     return pGC;
 }
 
@@ -446,11 +456,22 @@ miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
     pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 						  miDCScreenKey);
     pWin = WindowTable[pScreen->myNum];
-    pBuffer = MIDCBUFFER(pDev, pScreen);
+    pBuffer = MIDCBUFFER(pDev);
 
 #ifdef ARGB_CURSOR
     if (pPriv->pPicture)
     {
+        /* see comment in miDCPutUpCursor */
+        if (pBuffer->pRootPicture &&
+                pBuffer->pRootPicture->pDrawable &&
+                pBuffer->pRootPicture->pDrawable->pScreen != pScreen)
+        {
+            tossPict(pBuffer->pRootPicture);
+            pBuffer->pRootPicture = NULL;
+        }
+
+	if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin))
+	    return FALSE;
 	CompositePicture (PictOpOver,
 			  pPriv->pPicture,
 			  NULL,
@@ -463,6 +484,33 @@ miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
     else
 #endif
     {
+        /**
+         * XXX: Before MPX, the sourceGC and maskGC were attached to the
+         * screen, and would switch as the screen switches.  With mpx we have
+         * the GC's attached to the device now, so each time we switch screen
+         * we need to make sure the GC's are allocated on the new screen.
+         * This is ... not optimal. (whot)
+         */
+        if (pBuffer->pSourceGC && pScreen != pBuffer->pSourceGC->pScreen)
+        {
+            tossGC(pBuffer->pSourceGC);
+            pBuffer->pSourceGC = NULL;
+        }
+
+        if (pBuffer->pMaskGC && pScreen != pBuffer->pMaskGC->pScreen)
+        {
+            tossGC(pBuffer->pMaskGC);
+            pBuffer->pMaskGC = NULL;
+        }
+
+	if (!EnsureGC(pBuffer->pSourceGC, pWin))
+	    return FALSE;
+	if (!EnsureGC(pBuffer->pMaskGC, pWin))
+	{
+	    FreeGC (pBuffer->pSourceGC, (GContext) 0);
+	    pBuffer->pSourceGC = 0;
+	    return FALSE;
+	}
 	miDCPutBits ((DrawablePtr)pWin, pPriv,
 		     pBuffer->pSourceGC, pBuffer->pMaskGC,
 		     x, y, pCursor->bits->width, pCursor->bits->height,
@@ -483,7 +531,7 @@ miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
 
     pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 						  miDCScreenKey);
-    pBuffer = MIDCBUFFER(pDev, pScreen);
+    pBuffer = MIDCBUFFER(pDev);
 
     pSave = pBuffer->pSave;
     pWin = WindowTable[pScreen->myNum];
@@ -496,7 +544,14 @@ miDCSaveUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
 	if (!pSave)
 	    return FALSE;
     }
-
+    /* see comment in miDCPutUpCursor */
+    if (pBuffer->pSaveGC && pBuffer->pSaveGC->pScreen != pScreen)
+    {
+        tossGC(pBuffer->pSaveGC);
+        pBuffer->pSaveGC = NULL;
+    }
+    if (!EnsureGC(pBuffer->pSaveGC, pWin))
+	return FALSE;
     pGC = pBuffer->pSaveGC;
     if (pSave->drawable.serialNumber != pGC->serialNumber)
 	ValidateGC ((DrawablePtr) pSave, pGC);
@@ -517,13 +572,20 @@ miDCRestoreUnderCursor (DeviceIntPtr pDev, ScreenPtr pScreen,
 
     pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 						  miDCScreenKey);
-    pBuffer = MIDCBUFFER(pDev, pScreen);
+    pBuffer = MIDCBUFFER(pDev);
     pSave = pBuffer->pSave;
 
     pWin = WindowTable[pScreen->myNum];
     if (!pSave)
 	return FALSE;
-
+    /* see comment in miDCPutUpCursor */
+    if (pBuffer->pRestoreGC && pBuffer->pRestoreGC->pScreen != pScreen)
+    {
+        tossGC(pBuffer->pRestoreGC);
+        pBuffer->pRestoreGC = NULL;
+    }
+    if (!EnsureGC(pBuffer->pRestoreGC, pWin))
+	return FALSE;
     pGC = pBuffer->pRestoreGC;
     if (pWin->drawable.serialNumber != pGC->serialNumber)
 	ValidateGC ((DrawablePtr) pWin, pGC);
@@ -545,7 +607,7 @@ miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
 
     pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 						  miDCScreenKey);
-    pBuffer = MIDCBUFFER(pDev, pScreen);
+    pBuffer = MIDCBUFFER(pDev);
 
     pSave = pBuffer->pSave;
     pWin = WindowTable[pScreen->myNum];
@@ -554,7 +616,14 @@ miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
      */
     if (!pSave)
 	return FALSE;
-
+    /* see comment in miDCPutUpCursor */
+    if (pBuffer->pRestoreGC && pBuffer->pRestoreGC->pScreen != pScreen)
+    {
+        tossGC(pBuffer->pRestoreGC);
+        pBuffer->pRestoreGC = NULL;
+    }
+    if (!EnsureGC(pBuffer->pRestoreGC, pWin))
+	return FALSE;
     pGC = pBuffer->pRestoreGC;
     if (pWin->drawable.serialNumber != pGC->serialNumber)
 	ValidateGC ((DrawablePtr) pWin, pGC);
@@ -593,7 +662,14 @@ miDCChangeSave (DeviceIntPtr pDev, ScreenPtr pScreen,
 	(*pGC->ops->CopyArea) ((DrawablePtr) pSave, (DrawablePtr) pWin, pGC,
 			       0, sourcey, -dx, copyh, x + dx, desty);
     }
-
+    /* see comment in miDCPutUpCursor */
+    if (pBuffer->pSaveGC && pBuffer->pSaveGC->pScreen != pScreen)
+    {
+        tossGC(pBuffer->pSaveGC);
+        pBuffer->pSaveGC = NULL;
+    }
+    if (!EnsureGC(pBuffer->pSaveGC, pWin))
+	return FALSE;
     pGC = pBuffer->pSaveGC;
     if (pSave->drawable.serialNumber != pGC->serialNumber)
 	ValidateGC ((DrawablePtr) pSave, pGC);
@@ -690,7 +766,7 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
     pScreenPriv = (miDCScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
 						  miDCScreenKey);
     pWin = WindowTable[pScreen->myNum];
-    pBuffer = MIDCBUFFER(pDev, pScreen);
+    pBuffer = MIDCBUFFER(pDev);
 
     pTemp = pBuffer->pTemp;
     if (!pTemp ||
@@ -733,9 +809,17 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
 #ifdef ARGB_CURSOR
     if (pPriv->pPicture)
     {
-	if (!pBuffer->pTempPicture)
-            miDCMakePicture(&pBuffer->pTempPicture, &pTemp->drawable, pWin);
+        /* see comment in miDCPutUpCursor */
+        if (pBuffer->pTempPicture &&
+                pBuffer->pTempPicture->pDrawable &&
+                pBuffer->pTempPicture->pDrawable->pScreen != pScreen)
+        {
+            tossPict(pBuffer->pTempPicture);
+            pBuffer->pTempPicture = NULL;
+        }
 
+	if (!EnsurePicture(pBuffer->pTempPicture, &pTemp->drawable, pWin))
+	    return FALSE;
 	CompositePicture (PictOpOver,
 			  pPriv->pPicture,
 			  NULL,
@@ -748,12 +832,38 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
     else
 #endif
     {
+	if (!pBuffer->pPixSourceGC)
+	{
+	    pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pTemp,
+		GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
+	    if (!pBuffer->pPixSourceGC)
+		return FALSE;
+	}
+	if (!pBuffer->pPixMaskGC)
+	{
+	    pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pTemp,
+		GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
+	    if (!pBuffer->pPixMaskGC)
+		return FALSE;
+	}
 	miDCPutBits ((DrawablePtr)pTemp, pPriv,
 		     pBuffer->pPixSourceGC, pBuffer->pPixMaskGC,
 		     dx, dy, pCursor->bits->width, pCursor->bits->height,
 		     source, mask);
     }
 
+    /* see comment in miDCPutUpCursor */
+    if (pBuffer->pRestoreGC && pBuffer->pRestoreGC->pScreen != pScreen)
+    {
+        tossGC(pBuffer->pRestoreGC);
+        pBuffer->pRestoreGC = NULL;
+    }
+    /*
+     * copy the temporary pixmap onto the screen
+     */
+
+    if (!EnsureGC(pBuffer->pRestoreGC, pWin))
+	return FALSE;
     pGC = pBuffer->pRestoreGC;
     if (pWin->drawable.serialNumber != pGC->serialNumber)
 	ValidateGC ((DrawablePtr) pWin, pGC);
@@ -767,113 +877,51 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor,
 static Bool
 miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
 {
-    miDCBufferPtr   pBuffer;
-    WindowPtr       pWin;
-    XID             gcval = FALSE;
-    int             status;
-    int             i;
-
-    if (!DevHasCursor(pDev))
-        return TRUE;
-
-    for (i = 0; i < screenInfo.numScreens; i++)
-    {
-        pScreen = screenInfo.screens[i];
-
-        pBuffer = xalloc(sizeof(miDCBufferRec));
-        if (!pBuffer)
-            goto failure;
-
-        dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, pBuffer);
-        pWin = WindowTable[pScreen->myNum];
-
-        pBuffer->pSourceGC = miDCMakeGC(pWin);
-        if (!pBuffer->pSourceGC)
-            goto failure;
-
-        pBuffer->pMaskGC = miDCMakeGC(pWin);
-        if (!pBuffer->pMaskGC)
-            goto failure;
-
-        pBuffer->pSaveGC = miDCMakeGC(pWin);
-        if (!pBuffer->pSaveGC)
-            goto failure;
-
-        pBuffer->pRestoreGC = miDCMakeGC(pWin);
-        if (!pBuffer->pRestoreGC)
-            goto failure;
-
-        pBuffer->pMoveGC = CreateGC ((DrawablePtr)pWin,
-            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-        if (!pBuffer->pMoveGC)
-            goto failure;
-
-        pBuffer->pPixSourceGC = CreateGC ((DrawablePtr)pWin,
-            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-        if (!pBuffer->pPixSourceGC)
-            goto failure;
-
-        pBuffer->pPixMaskGC = CreateGC ((DrawablePtr)pWin,
-            GCGraphicsExposures, &gcval, &status, (XID)0, serverClient);
-        if (!pBuffer->pPixMaskGC)
-            goto failure;
-
+    miDCBufferPtr pBuffer;
+
+    pBuffer = xalloc(sizeof(miDCBufferRec));
+    dixSetPrivate(&pDev->devPrivates, miDCSpriteKey, pBuffer);
+
+    pBuffer->pSourceGC =
+        pBuffer->pMaskGC =
+        pBuffer->pSaveGC =
+        pBuffer->pRestoreGC =
+        pBuffer->pMoveGC =
+        pBuffer->pPixSourceGC =
+        pBuffer->pPixMaskGC = NULL;
 #ifdef ARGB_CURSOR
-        miDCMakePicture(&pBuffer->pRootPicture, &pWin->drawable, pWin);
-        if (!pBuffer->pRootPicture)
-            goto failure;
-
-        pBuffer->pTempPicture = NULL;
+    pBuffer->pRootPicture = NULL;
+    pBuffer->pTempPicture = NULL;
 #endif
-
-        // these get (re)allocated lazily depending on the cursor size
-        pBuffer->pSave = pBuffer->pTemp = NULL;
-    }
+    pBuffer->pSave = pBuffer->pTemp = NULL;
 
     return TRUE;
-
-failure:
-
-    miDCDeviceCleanup(pDev, pScreen);
-
-    return FALSE;
 }
 
 static void
 miDCDeviceCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
 {
     miDCBufferPtr   pBuffer;
-    int             i;
 
     if (DevHasCursor(pDev))
     {
-        for (i = 0; i < screenInfo.numScreens; i++)
-        {
-            pScreen = screenInfo.screens[i];
-
-            pBuffer = MIDCBUFFER(pDev, pScreen);
-
-            if (pBuffer)
-            {
-                if (pBuffer->pSourceGC) FreeGC(pBuffer->pSourceGC, (GContext) 0);
-                if (pBuffer->pMaskGC) FreeGC(pBuffer->pMaskGC, (GContext) 0);
-                if (pBuffer->pSaveGC) FreeGC(pBuffer->pSaveGC, (GContext) 0);
-                if (pBuffer->pRestoreGC) FreeGC(pBuffer->pRestoreGC, (GContext) 0);
-                if (pBuffer->pMoveGC) FreeGC(pBuffer->pMoveGC, (GContext) 0);
-                if (pBuffer->pPixSourceGC) FreeGC(pBuffer->pPixSourceGC, (GContext) 0);
-                if (pBuffer->pPixMaskGC) FreeGC(pBuffer->pPixMaskGC, (GContext) 0);
-
+        pBuffer = MIDCBUFFER(pDev);
+        tossGC (pBuffer->pSourceGC);
+        tossGC (pBuffer->pMaskGC);
+        tossGC (pBuffer->pSaveGC);
+        tossGC (pBuffer->pRestoreGC);
+        tossGC (pBuffer->pMoveGC);
+        tossGC (pBuffer->pPixSourceGC);
+        tossGC (pBuffer->pPixMaskGC);
+        tossPix (pBuffer->pSave);
+        tossPix (pBuffer->pTemp);
 #ifdef ARGB_CURSOR
-                if (pBuffer->pRootPicture) FreePicture(pBuffer->pRootPicture, 0);
-                if (pBuffer->pTempPicture) FreePicture(pBuffer->pTempPicture, 0);
+#if 0				/* This has been free()d before */
+        tossPict (pScreenPriv->pRootPicture);
 #endif
-
-                if (pBuffer->pSave) (*pScreen->DestroyPixmap)(pBuffer->pSave);
-                if (pBuffer->pTemp) (*pScreen->DestroyPixmap)(pBuffer->pTemp);
-
-                xfree(pBuffer);
-                dixSetPrivate(&pDev->devPrivates, miDCSpriteKey + pScreen->myNum, NULL);
-            }
-        }
+        tossPict (pBuffer->pTempPicture);
+#endif
+        xfree(pBuffer);
+        dixSetPrivate(&pDev->devPrivates, miDCSpriteKey, NULL);
     }
 }


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