glx/dri2: add dri2 prime support.

[mesa.git] / src / glx / dri2.c

diff --git a/src/glx/dri2.c b/src/glx/dri2.c
index 8654a37688f588c19c6f976dd808934f96f3089a..d6b99db768c611c5b6845fd11c64a121ede48f03 100644 (file)
--- a/src/glx/dri2.c
+++ b/src/glx/dri2.c
@@ -88,6 +88,7 @@ static Bool
 DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
 {
    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
+   struct glx_drawable *glxDraw;
 
    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 
@@ -98,6 +99,9 @@ DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
    {
       GLXBufferSwapComplete *aevent = (GLXBufferSwapComplete *)event;
       xDRI2BufferSwapComplete2 *awire = (xDRI2BufferSwapComplete2 *)wire;
+      __GLXDRIdrawable *pdraw;
+
+      pdraw = dri2GetGlxDrawableFromXDrawableId(dpy, awire->drawable);
 
       /* Ignore swap events if we're not looking for them */
       aevent->type = dri2GetSwapEventType(dpy, awire->drawable);
@@ -124,7 +128,13 @@ DRI2WireToEvent(Display *dpy, XEvent *event, xEvent *wire)
       }
       aevent->ust = ((CARD64)awire->ust_hi << 32) | awire->ust_lo;
       aevent->msc = ((CARD64)awire->msc_hi << 32) | awire->msc_lo;
-      aevent->sbc = awire->sbc;
+
+      glxDraw = GetGLXDrawable(dpy, pdraw->drawable);
+      if (awire->sbc < glxDraw->lastEventSbc)
+        glxDraw->eventSbcWrap += 0x100000000;
+      glxDraw->lastEventSbc = awire->sbc;
+      aevent->sbc = awire->sbc + glxDraw->eventSbcWrap;
+
       return True;
    }
 #endif
@@ -180,6 +190,15 @@ DRI2Error(Display *display, xError *err, XExtCodes *codes, int *ret_code)
        err->minorCode == X_DRI2DestroyDrawable)
        return True;
 
+    /* If the server is non-local DRI2Connect will raise BadRequest.
+     * Swallow this so that DRI2Connect can signal this in its return code */
+    if (err->majorCode == codes->major_opcode &&
+        err->minorCode == X_DRI2Connect &&
+        err->errorCode == BadRequest) {
+       *ret_code = False;
+       return True;
+    }
+
     return False;
 }
 
@@ -250,6 +269,7 @@ DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
    XExtDisplayInfo *info = DRI2FindDisplay(dpy);
    xDRI2ConnectReply rep;
    xDRI2ConnectReq *req;
+   char *prime;
 
    XextCheckExtension(dpy, info, dri2ExtensionName, False);
 
@@ -258,7 +278,19 @@ DRI2Connect(Display * dpy, XID window, char **driverName, char **deviceName)
    req->reqType = info->codes->major_opcode;
    req->dri2ReqType = X_DRI2Connect;
    req->window = window;
+
    req->driverType = DRI2DriverDRI;
+#ifdef DRI2DriverPrimeShift
+   prime = getenv("DRI_PRIME");
+   if (prime) {
+      uint32_t primeid;
+      errno = 0;
+      primeid = strtoul(prime, NULL, 0);
+      if (errno == 0)
+         req->driverType |= ((primeid & DRI2DriverPrimeMask) << DRI2DriverPrimeShift);
+   }
+#endif
+
    if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) {
       UnlockDisplay(dpy);
       SyncHandle();