From: Eric Anholt <eric@anholt.net>
Date: Fri, 18 Apr 2014 01:23:51 +0000 (-0700)
Subject: glx: Move GLX MakeCurrent lastGLContext updates next to makeCurrent().
X-Git-Tag: upstream/1.16~87
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=789509ef5324ce9141222fa92dea51b5cc777209;p=platform%2Fupstream%2Fxorg-server.git

glx: Move GLX MakeCurrent lastGLContext updates next to makeCurrent().

We want to make sure that lastGLContext is set correctly during
makeCurrent, because we may have recursive GL context changes in the
DRI2 interfaces due to glamor.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
---

diff --git a/glx/glxcmds.c b/glx/glxcmds.c
index a451d2b..fb236b6 100644
--- a/glx/glxcmds.c
+++ b/glx/glxcmds.c
@@ -434,9 +434,6 @@ static void
 StopUsingContext(__GLXcontext * glxc)
 {
     if (glxc) {
-        if (glxc == lastGLContext) {
-            lastGLContext = NULL;
-        }
         glxc->currentClient = NULL;
         if (!glxc->idExists) {
             FreeResourceByType(glxc->id, __glXContextRes, FALSE);
@@ -447,7 +444,6 @@ StopUsingContext(__GLXcontext * glxc)
 static void
 StartUsingContext(__GLXclientState * cl, __GLXcontext * glxc)
 {
-    lastGLContext = glxc;
     glxc->currentClient = cl->client;
 }
 
@@ -639,7 +635,9 @@ DoMakeCurrent(__GLXclientState * cl,
         glxc->readPriv = readPriv;
 
         /* make the context current */
+        lastGLContext = glxc;
         if (!(*glxc->makeCurrent) (glxc)) {
+            lastGLContext = NULL;
             glxc->drawPriv = NULL;
             glxc->readPriv = NULL;
             return __glXError(GLXBadContext);
diff --git a/glx/glxext.c b/glx/glxext.c
index 85fd219..9855767 100644
--- a/glx/glxext.c
+++ b/glx/glxext.c
@@ -444,14 +444,15 @@ __glXForceCurrent(__GLXclientState * cl, GLXContextTag tag, int *error)
 
     /* Make this context the current one for the GL. */
     if (!cx->isDirect) {
+        lastGLContext = cx;
         if (!(*cx->makeCurrent) (cx)) {
             /* Bind failed, and set the error code.  Bummer */
+            lastGLContext = NULL;
             cl->client->errorValue = cx->id;
             *error = __glXError(GLXBadContextState);
             return 0;
         }
     }
-    lastGLContext = cx;
     return cx;
 }