From bf78e11839f8278020b604672ff7c3d194232be9 Mon Sep 17 00:00:00 2001 From: Jamey Sharp Date: Mon, 24 May 2010 09:15:32 -0700 Subject: [PATCH] midispcur: Construct Picture objects lazily in case Render is disabled. Reverts part of the effects of 518f3b189b6c8aa28b62837d14309fd06163ccbb, "mi: don't thrash resources when displaying the software cursor across screens". The per-screen cache is preserved, and the GCs are still allocated eagerly, but now it doesn't construct pRootPicture until somebody attempts to draw an ARGB cursor. I noticed crashes in Xnest, which doesn't support the RENDER extension, but I suspect other DDXes that support disabling that extension would have had issues as well. Signed-off-by: Jamey Sharp Reviewed-by: Pierre-Loup A. Griffais --- mi/midispcur.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/mi/midispcur.c b/mi/midispcur.c index 16495e45f..f2b22293d 100644 --- a/mi/midispcur.c +++ b/mi/midispcur.c @@ -141,6 +141,7 @@ miDCRealizeCursor (ScreenPtr pScreen, CursorPtr pCursor) } #ifdef ARGB_CURSOR +#define EnsurePicture(picture,draw,win) (picture || miDCMakePicture(&picture,draw,win)) static VisualPtr miDCGetWindowVisual (WindowPtr pWin) @@ -413,6 +414,8 @@ miDCPutUpCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor, #ifdef ARGB_CURSOR if (pPriv->pPicture) { + if (!EnsurePicture(pBuffer->pRootPicture, &pWin->drawable, pWin)) + return FALSE; CompositePicture (PictOpOver, pPriv->pPicture, NULL, @@ -695,9 +698,8 @@ miDCMoveCursor (DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCursor, #ifdef ARGB_CURSOR if (pPriv->pPicture) { - if (!pBuffer->pTempPicture) - miDCMakePicture(&pBuffer->pTempPicture, &pTemp->drawable, pWin); - + if (!EnsurePicture(pBuffer->pTempPicture, &pTemp->drawable, pWin)) + return FALSE; CompositePicture (PictOpOver, pPriv->pPicture, NULL, @@ -781,10 +783,7 @@ miDCDeviceInitialize(DeviceIntPtr pDev, ScreenPtr pScreen) goto failure; #ifdef ARGB_CURSOR - miDCMakePicture(&pBuffer->pRootPicture, &pWin->drawable, pWin); - if (!pBuffer->pRootPicture) - goto failure; - + pBuffer->pRootPicture = NULL; pBuffer->pTempPicture = NULL; #endif