3 files changed, 50 insertions, 29 deletions

diff --git a/src/glx/x11/dri2_glx.c b/src/glx/x11/dri2_glx.c
index 9c8f1101b9e..b6eeb913b66 100644
--- a/src/glx/x11/dri2_glx.c
+++ b/src/glx/x11/dri2_glx.c
@@ -74,7 +74,6 @@ struct __GLXDRIdrawablePrivateRec {
     int bufferCount;
     int width, height;
     int have_back;
-    int have_front;
     int have_fake_front;
 };
 
@@ -195,7 +194,7 @@ static void dri2CopySubBuffer(__GLXDRIdrawable *pdraw,
     XserverRegion region;
 
     /* Check we have the right attachments */
-    if (!(priv->have_front && priv->have_back))
+    if (!priv->have_back)
     	return;
 
     xrect.x = x;
@@ -229,7 +228,7 @@ static void dri2WaitX(__GLXDRIdrawable *pdraw)
     XserverRegion region;
 
     /* Check we have the right attachments */
-    if (!(priv->have_fake_front && priv->have_front))
+    if (!priv->have_fake_front)
     	return;
 
     xrect.x = 0;
@@ -254,7 +253,7 @@ static void dri2WaitGL(__GLXDRIdrawable *pdraw)
     XRectangle xrect;
     XserverRegion region;
 
-    if (!(priv->have_fake_front && priv->have_front))
+    if (!priv->have_fake_front)
     	return;
 
     xrect.x = 0;
@@ -273,6 +272,15 @@ static void dri2WaitGL(__GLXDRIdrawable *pdraw)
     XFixesDestroyRegion(pdraw->psc->dpy, region);
 }
 
+
+static void dri2FlushFrontBuffer(__DRIdrawable *driDrawable,
+				 void *loaderPrivate)
+{
+    (void) driDrawable;
+    dri2WaitGL((__GLXDRIdrawable *) loaderPrivate);
+}
+
+
 static void dri2DestroyScreen(__GLXscreenConfigs *psc)
 {
     /* Free the direct rendering per screen data */
@@ -299,7 +307,6 @@ dri2GetBuffers(__DRIdrawable *driDrawable,
     pdraw->width = *width;
     pdraw->height = *height;
     pdraw->bufferCount = *out_count;
-    pdraw->have_front = 0;
     pdraw->have_fake_front = 0;
     pdraw->have_back = 0;
 
@@ -311,8 +318,6 @@ dri2GetBuffers(__DRIdrawable *driDrawable,
 	pdraw->buffers[i].pitch = buffers[i].pitch;
 	pdraw->buffers[i].cpp = buffers[i].cpp;
 	pdraw->buffers[i].flags = buffers[i].flags;
-	if (pdraw->buffers[i].attachment == __DRI_BUFFER_FRONT_LEFT)
-	    pdraw->have_front = 1;
 	if (pdraw->buffers[i].attachment == __DRI_BUFFER_FAKE_FRONT_LEFT)
 	    pdraw->have_fake_front = 1;
 	if (pdraw->buffers[i].attachment == __DRI_BUFFER_BACK_LEFT)
@@ -327,6 +332,7 @@ dri2GetBuffers(__DRIdrawable *driDrawable,
 static const __DRIdri2LoaderExtension dri2LoaderExtension = {
     { __DRI_DRI2_LOADER, __DRI_DRI2_LOADER_VERSION },
     dri2GetBuffers,
+    dri2FlushFrontBuffer
 };
 
 static const __DRIextension *loader_extensions[] = {
diff --git a/src/glx/x11/dri_glx.c b/src/glx/x11/dri_glx.c
index 3089aa17285..87d62ad8468 100644
--- a/src/glx/x11/dri_glx.c
+++ b/src/glx/x11/dri_glx.c
@@ -40,6 +40,7 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include "glxclient.h"
 #include "glcontextmodes.h"
 #include "xf86dri.h"
+#include "dri2.h"
 #include "sarea.h"
 #include <dlfcn.h>
 #include <sys/types.h>
@@ -75,32 +76,45 @@ struct __GLXDRIcontextPrivateRec {
  */
 static Bool driGetDriverName(Display *dpy, int scrNum, char **driverName)
 {
-   int directCapable;
-   Bool b;
-   int driverMajor, driverMinor, driverPatch;
+    int directCapable;
+    Bool b;
+    int event, error;
+    int driverMajor, driverMinor, driverPatch;
 
-   *driverName = NULL;
+    *driverName = NULL;
 
-   if (!XF86DRIQueryDirectRenderingCapable(dpy, scrNum, &directCapable)) {
-      ErrorMessageF("XF86DRIQueryDirectRenderingCapable failed\n");
-      return False;
-   }
-   if (!directCapable) {
-      ErrorMessageF("XF86DRIQueryDirectRenderingCapable returned false\n");
-      return False;
-   }
+    if (XF86DRIQueryExtension(dpy, &event, &error)) { /* DRI1 */
+	if (!XF86DRIQueryDirectRenderingCapable(dpy, scrNum, &directCapable)) {
+	    ErrorMessageF("XF86DRIQueryDirectRenderingCapable failed\n");
+	    return False;
+	}
+	if (!directCapable) {
+	    ErrorMessageF("XF86DRIQueryDirectRenderingCapable returned false\n");
+	    return False;
+	}
 
-   b = XF86DRIGetClientDriverName(dpy, scrNum, &driverMajor, &driverMinor,
-                                  &driverPatch, driverName);
-   if (!b) {
-      ErrorMessageF("Cannot determine driver name for screen %d\n", scrNum);
-      return False;
-   }
+	b = XF86DRIGetClientDriverName(dpy, scrNum, &driverMajor, &driverMinor,
+		&driverPatch, driverName);
+	if (!b) {
+	    ErrorMessageF("Cannot determine driver name for screen %d\n", scrNum);
+	    return False;
+	}
+
+	InfoMessageF("XF86DRIGetClientDriverName: %d.%d.%d %s (screen %d)\n",
+		driverMajor, driverMinor, driverPatch, *driverName, scrNum);
+
+	return True;
+    } else if (DRI2QueryExtension(dpy, &event, &error)) { /* DRI2 */
+	char *dev;
+	Bool ret = DRI2Connect(dpy, RootWindow(dpy, scrNum), driverName, &dev);
 
-   InfoMessageF("XF86DRIGetClientDriverName: %d.%d.%d %s (screen %d)\n",
-	     driverMajor, driverMinor, driverPatch, *driverName, scrNum);
+	if (ret)
+	    Xfree(dev);
+
+	return ret;
+    }
 
-   return True;
+    return False;
 }
 
 /*
diff --git a/src/glx/x11/glxcmds.c b/src/glx/x11/glxcmds.c
index e5c0db4c968..b9e0706d312 100644
--- a/src/glx/x11/glxcmds.c
+++ b/src/glx/x11/glxcmds.c
@@ -1702,7 +1702,8 @@ PUBLIC GLXFBConfig *glXGetFBConfigs(Display *dpy, int screen, int *nelements)
     int   i;
 
     *nelements = 0;
-    if ( (priv->screenConfigs != NULL)
+    if ( priv
+         && (priv->screenConfigs != NULL)
 	 && (screen >= 0) && (screen <= ScreenCount(dpy))
 	 && (priv->screenConfigs[screen].configs != NULL)
 	 && (priv->screenConfigs[screen].configs->fbconfigID != GLX_DONT_CARE) ) {