- u_dri2-Check-for-dummyContext-to-see-if-the-glx_context-is-valid.patch

Check for dummyContext to see if the glx_context is valid (boo#962609).

OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/Mesa?expand=0&rev=498

Mesa.changes

@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Jan 20 16:40:10 UTC 2016 - eich@suse.com
+
+- u_dri2-Check-for-dummyContext-to-see-if-the-glx_context-is-valid.patch
+  Check for dummyContext to see if the glx_context is valid (boo#962609).
+
 -------------------------------------------------------------------
 Wed Jan 20 15:16:11 UTC 2016 - sndirsch@suse.com
 

Mesa.spec

@@ -57,6 +57,7 @@ Source6:        %{name}-rpmlintrc
 Source7:        Mesa.keyring
 # required for building against wayland of openSUSE 13.1
 Patch0:         n_Fixed-build-against-wayland-1.2.1.patch
+Patch1:         u_dri2-Check-for-dummyContext-to-see-if-the-glx_context-is-valid.patch
 # to be upstreamed
 Patch11:        u_Fix-crash-in-swrast-when-setting-a-texture-for-a-pix.patch
 # Patch from Fedora, fix 16bpp in llvmpipe
@@ -550,6 +551,7 @@ rm -rf docs/README.{VMS,WIN32,OS2}
 # required for building against wayland of openSUSE 13.1
 %patch0 -p1
 %endif
+%patch1 -p1
 ### disabled, but not dropped yet; these still need investigation in
 ### order to figure out whether the issue is still reproducable and
 ### hence a fix is required

u_dri2-Check-for-dummyContext-to-see-if-the-glx_context-is-valid.patch

@@ -0,0 +1,30 @@
+From: Egbert Eich <eich@suse.de>
+Date: Wed Jan 20 13:51:11 2016 +0100
+Subject: [PATCH]dri2: Check for dummyContext to see if the glx_context is valid
+Patch-mainline: to be upstreamed
+
+References: boo#962609
+Signed-off-by: Egbert Eich <eich@suse.com>
+
+According to the comments in src/glx/glxcurrent.c __glXGetCurrentContext()
+always returns a valid pointer. If no context is made current, it will
+contain dummyContext. Thus a test for NULL will always fail.
+
+Signed-off-by: Egbert Eich <eich@suse.de>
+---
+ src/glx/dri2_glx.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/glx/dri2_glx.c b/src/glx/dri2_glx.c
+index 27ea952..6a5f964 100644
+--- a/src/glx/dri2_glx.c
++++ b/src/glx/dri2_glx.c
+@@ -520,7 +520,7 @@ dri2GetCurrentContext()
+    struct glx_context *gc = __glXGetCurrentContext();
+    struct dri2_context *dri2Ctx = (struct dri2_context *)gc;
+ 
+-   return dri2Ctx ? dri2Ctx->driContext : NULL;
++   return (gc != &dummyContext) ? dri2Ctx->driContext : NULL;
+ }
+ 
+ /**