xserver: Branch 'master' - 2 commits

[Michel Dänzer]

 glx/glxext.c           |   25 ++++++++++++++++++++++++-
 hw/xfree86/dri2/dri2.c |   12 ++++++++++--
 2 files changed, 34 insertions(+), 3 deletions(-)

New commits:
commit 3020b1d43e34fca08cd51f7c7c8ed51497d49ef3
Author: Michel Dänzer <daenzer at vmware.com>
Date:   Tue Jun 23 16:45:40 2009 +0200

    glx: Clean up more thoroughly if the drawable of a current context goes away.
    
    Fixes crash when restarting compiz, due to cl->currentContexts[x] being stale.

diff --git a/glx/glxext.c b/glx/glxext.c
index 520eb2e..a571ec9 100644
--- a/glx/glxext.c
+++ b/glx/glxext.c
@@ -128,8 +128,31 @@ static Bool DrawableGone(__GLXdrawable *glxPriv, XID xid)
 
     for (c = glxAllContexts; c; c = c->next) {
 	if (c->isCurrent && (c->drawPriv == glxPriv || c->readPriv == glxPriv)) {
+	    int i;
+
 	    (*c->loseCurrent)(c);
-	    __glXFlushContextCache();
+	    c->isCurrent = GL_FALSE;
+	    if (c == __glXLastContext)
+		__glXFlushContextCache();
+
+	    for (i = 1; i < currentMaxClients; i++) {
+		if (clients[i]) {
+		    __GLXclientState *cl = glxGetClient(clients[i]);
+
+		    if (cl->inUse) {
+			int j;
+
+			for (j = 0; j < cl->numCurrentContexts; j++) {
+			    if (cl->currentContexts[j] == c)
+				cl->currentContexts[j] = NULL;
+			}
+		    }
+		}
+	    }
+
+	    if (!c->idExists) {
+		__glXFreeContext(c);
+	    }
 	}
 	if (c->drawPriv == glxPriv)
 	    c->drawPriv = NULL;
commit df597709d71f47b8516e27c6fb1bfffd59de5e48
Author: Michel Dänzer <daenzer at vmware.com>
Date:   Tue Jun 23 16:45:39 2009 +0200

    dri2: Don't crash if pPriv is NULL.

diff --git a/hw/xfree86/dri2/dri2.c b/hw/xfree86/dri2/dri2.c
index 385c5e8..aead33b 100644
--- a/hw/xfree86/dri2/dri2.c
+++ b/hw/xfree86/dri2/dri2.c
@@ -186,10 +186,18 @@ do_get_buffers(DrawablePtr pDraw, int *width, int *height,
     int need_fake_front = 0;
     int have_fake_front = 0;
     int front_format = 0;
-    const int dimensions_match = (pDraw->width == pPriv->width)
-	&& (pDraw->height == pPriv->height);
+    int dimensions_match;
     int i;
 
+    if (!pPriv) {
+	*width = pDraw->width;
+	*height = pDraw->height;
+	*out_count = 0;
+	return NULL;
+    }
+
+    dimensions_match = (pDraw->width == pPriv->width)
+	&& (pDraw->height == pPriv->height);
 
     buffers = xalloc((count + 1) * sizeof(buffers[0]));