2 files changed, 36 insertions, 8 deletions

diff --git a/xorg-server/hw/xfree86/dri2/dri2.c b/xorg-server/hw/xfree86/dri2/dri2.c
index babf32f13..d0f17896d 100644
--- a/xorg-server/hw/xfree86/dri2/dri2.c
+++ b/xorg-server/hw/xfree86/dri2/dri2.c
@@ -104,7 +104,8 @@ typedef struct _DRI2Screen {
     DRI2ScheduleSwapProcPtr ScheduleSwap;
     DRI2GetMSCProcPtr GetMSC;
     DRI2ScheduleWaitMSCProcPtr ScheduleWaitMSC;
-    DRI2AuthMagicProcPtr AuthMagic;
+    DRI2AuthMagic2ProcPtr AuthMagic;
+    DRI2AuthMagicProcPtr LegacyAuthMagic;
     DRI2ReuseBufferNotifyProcPtr ReuseBufferNotify;
     DRI2SwapLimitValidateProcPtr SwapLimitValidate;
     DRI2GetParamProcPtr GetParam;
@@ -1110,12 +1111,22 @@ DRI2Connect(ScreenPtr pScreen, unsigned int driverType, int *fd,
     return TRUE;
 }
 
+static Bool
+DRI2AuthMagic (ScreenPtr pScreen, uint32_t magic)
+{
+    DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
+    if (ds == NULL || (*ds->LegacyAuthMagic) (ds->fd, magic))
+        return FALSE;
+
+    return TRUE;
+}
+
 Bool
 DRI2Authenticate(ScreenPtr pScreen, uint32_t magic)
 {
     DRI2ScreenPtr ds = DRI2GetScreen(pScreen);
 
-    if (ds == NULL || (*ds->AuthMagic) (ds->fd, magic))
+    if (ds == NULL || (*ds->AuthMagic) (pScreen, magic))
         return FALSE;
 
     return TRUE;
@@ -1202,8 +1213,11 @@ DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
         cur_minor = 1;
     }
 
+    if (info->version >= 8) {
+        ds->AuthMagic = info->AuthMagic2;
+    }
     if (info->version >= 5) {
-        ds->AuthMagic = info->AuthMagic;
+        ds->LegacyAuthMagic = info->AuthMagic;
     }
 
     if (info->version >= 6) {
@@ -1218,14 +1232,21 @@ DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info)
 
     /*
      * if the driver doesn't provide an AuthMagic function or the info struct
-     * version is too low, it relies on the old method (using libdrm) or fail
+     * version is too low, call through LegacyAuthMagic
      */
-    if (!ds->AuthMagic)
+    if (!ds->AuthMagic) {
+        ds->AuthMagic = DRI2AuthMagic;
+        /*
+         * If the driver doesn't provide an AuthMagic function
+         * it relies on the old method (using libdrm) or fails
+         */
+        if (!ds->LegacyAuthMagic)
 #ifdef WITH_LIBDRM
-        ds->AuthMagic = drmAuthMagic;
+            ds->LegacyAuthMagic = drmAuthMagic;
 #else
-        goto err_out;
+            goto err_out;
 #endif
+    }
 
     /* Initialize minor if needed and set to minimum provied by DDX */
     if (!dri2_minor || dri2_minor > cur_minor)
diff --git a/xorg-server/hw/xfree86/dri2/dri2.h b/xorg-server/hw/xfree86/dri2/dri2.h
index f849be67a..4fd0fbc52 100644
--- a/xorg-server/hw/xfree86/dri2/dri2.h
+++ b/xorg-server/hw/xfree86/dri2/dri2.h
@@ -64,6 +64,7 @@ typedef void (*DRI2CopyRegionProcPtr) (DrawablePtr pDraw,
                                        DRI2BufferPtr pSrcBuffer);
 typedef void (*DRI2WaitProcPtr) (WindowPtr pWin, unsigned int sequence);
 typedef int (*DRI2AuthMagicProcPtr) (int fd, uint32_t magic);
+typedef int (*DRI2AuthMagic2ProcPtr) (ScreenPtr pScreen, uint32_t magic);
 
 /**
  * Schedule a buffer swap
@@ -192,7 +193,7 @@ typedef int (*DRI2GetParamProcPtr) (ClientPtr client,
 /**
  * Version of the DRI2InfoRec structure defined in this header
  */
-#define DRI2INFOREC_VERSION 7
+#define DRI2INFOREC_VERSION 8
 
 typedef struct {
     unsigned int version;       /**< Version of this struct */
@@ -229,6 +230,12 @@ typedef struct {
     /* added in version 7 */
 
     DRI2GetParamProcPtr GetParam;
+
+    /* added in version 8 */
+    /* AuthMagic callback which passes extra context */
+    /* If this is NULL the AuthMagic callback is used */
+    /* If this is non-NULL the AuthMagic callback is ignored */
+    DRI2AuthMagic2ProcPtr AuthMagic2;
 } DRI2InfoRec, *DRI2InfoPtr;
 
 extern _X_EXPORT int DRI2EventBase;