Drop createContext and destroyContext from DRIinterfaceMethods.

As for createDrawable and destroyDrawable, these functions immediately
upon entry to driCreateNewContext and immediately before exit from
driDestroyContext.  Instead of passing function pointers back and forth
just obtain the drm_context_t prior to calling DRIscreen::createNewContext
and pass it as a parameter.

This change also lets us keep the DRI context XID in the libGL loader only.

include/GL/internal/dri_interface.h

@@ -183,17 +183,6 @@ struct __DRIinterfaceMethodsRec {
      */
     /*@{*/
 
-    /**
-     * Create the server-side portion of the GL context.
-     */
-    GLboolean (* createContext)( __DRIscreen *screen,
-        int configID, void * contextID, drm_context_t * hw_context );
-
-    /**
-     * Destroy the server-side portion of the GL context.
-     */
-    GLboolean (* destroyContext)( __DRIscreen *screen, __DRIid context );
-
     /**
      * This function is used to get information about the position, size, and
      * clip rects of a drawable.
@@ -345,7 +334,8 @@ struct __DRIscreenRec {
     void * (*createNewContext)(__DRIscreen *screen,
 			       const __GLcontextModes *modes,
 			       int render_type,
-			       void *sharedPrivate, __DRIcontext *pctx);
+			       void *sharedPrivate,
+			       drm_context_t hwContext, __DRIcontext *pctx);
 
     /**
      * Method to override base texture image with a driver specific 'offset'.

src/glx/x11/glxclient.h

@@ -361,6 +361,11 @@ struct __GLXcontextRec {
      * Pointer to the mode used to create this context.
      */
     const __GLcontextModes * mode;
+
+    /**
+     * XID for the server side drm_context_t
+     */
+    XID hwContextID;
 #endif
     
     /**

src/glx/x11/glxcmds.c

@@ -382,6 +382,7 @@ CreateContext(Display *dpy, XVisualInfo *vis,
 	    int screen = (fbconfig == NULL) ? vis->screen : fbconfig->screen;
 	    __GLXscreenConfigs * const psc = GetGLXScreenConfigs(dpy, screen);
 	    const __GLcontextModes * mode;
+	    drm_context_t hwContext;
 
 	    /* The value of fbconfig cannot change because it is tested
 	     * later in the function.
@@ -402,10 +403,19 @@ CreateContext(Display *dpy, XVisualInfo *vis,
 	    if (psc && psc->driScreen.private) {
 		void * const shared = (shareList != NULL)
 		    ? shareList->driContext.private : NULL;
+
+
+		if (!XF86DRICreateContextWithConfig(dpy, psc->scr,
+						    mode->fbconfigID,
+						    &gc->hwContextID, &hwContext))
+		    /* gah, handle this better */
+		    return NULL;
+
 		gc->driContext.private = 
 		  (*psc->driScreen.createNewContext)( &psc->driScreen,
 						      mode, renderType,
 						      shared,
+						      hwContext,
 						      &gc->driContext );
 		if (gc->driContext.private) {
 		    gc->isDirect = GL_TRUE;
@@ -415,6 +425,9 @@ CreateContext(Display *dpy, XVisualInfo *vis,
 		    gc->fbconfigID = mode->fbconfigID;
 		    gc->mode = mode;
 		}
+		else {
+		    XF86DRIDestroyContext(dpy, psc->scr, gc->hwContextID);
+		}
 	    }
 	}
 #endif
@@ -524,6 +537,7 @@ DestroyContext(Display *dpy, GLXContext gc)
     if (gc->isDirect) {
 	if (gc->driContext.private) {
 	    (*gc->driContext.destroyContext)(gc->driContext.private);
+	    XF86DRIDestroyContext(dpy, gc->psc->scr, gc->hwContextID);
 	    gc->driContext.private = NULL;
 	}
 	GarbageCollectDRIDrawables(dpy, gc->screen);

src/glx/x11/glxext.c

@@ -773,28 +773,6 @@ static void __glXReportDamage(__DRIdrawable *driDraw,
 #endif
 }
 
-static GLboolean
-__glXDRICreateContext(__DRIscreen *screen, int configID,
-		      void *pid, drm_context_t *hHWContext)
-{
-    __GLXscreenConfigs *psc =
-	containerOf(screen, __GLXscreenConfigs, driScreen);
-    Display *dpy = psc->dpy;
-
-    return XF86DRICreateContextWithConfig(dpy, psc->scr,
-					  configID, pid, hHWContext);
-}
-
-static GLboolean
-__glXDRIDestroyContext(__DRIscreen  *screen, __DRIid context_id)
-{
-    __GLXscreenConfigs *psc =
-	containerOf(screen, __GLXscreenConfigs, driScreen);
-    Display *dpy = psc->dpy;
-
-    return XF86DRIDestroyContext(dpy, psc->scr, context_id);
-}
-
 static GLboolean
 __glXDRIGetDrawableInfo(__DRIdrawable *drawable,
 			unsigned int *index, unsigned int *stamp, 
@@ -825,9 +803,6 @@ static const __DRIinterfaceMethods interface_methods = {
     _gl_context_modes_create,
     _gl_context_modes_destroy,
 
-    __glXDRICreateContext,
-    __glXDRIDestroyContext,
-
     __glXDRIGetDrawableInfo,
 
     __glXGetUST,
@@ -1816,6 +1791,9 @@ USED static Bool MakeContextCurrent(Display *dpy, GLXDrawable draw,
 		    if (oldGC->driContext.private) {
 			(*oldGC->driContext.destroyContext)
 			    (oldGC->driContext.private);
+			XF86DRIDestroyContext(oldGC->createDpy,
+					      oldGC->psc->scr,
+					      gc->hwContextID);
 			oldGC->driContext.private = NULL;
 		    }
 		}

src/mesa/drivers/dri/common/dri_util.c

@@ -552,8 +552,6 @@ driDestroyContext(void *contextPrivate)
 
     if (pcp) {
 	(*pcp->driScreenPriv->DriverAPI.DestroyContext)(pcp);
-	(void) (*dri_interface->destroyContext)(pcp->driScreenPriv->psc,
-						pcp->contextID);
 	_mesa_free(pcp);
     }
 }
@@ -582,7 +580,8 @@ driDestroyContext(void *contextPrivate)
  */
 static void *
 driCreateNewContext(__DRIscreen *screen, const __GLcontextModes *modes,
-		    int render_type, void *sharedPrivate, __DRIcontext *pctx)
+		    int render_type, void *sharedPrivate, 
+		    drm_context_t hwContext, __DRIcontext *pctx)
 {
     __DRIcontextPrivate *pcp;
     __DRIcontextPrivate *pshare = (__DRIcontextPrivate *) sharedPrivate;
@@ -596,12 +595,7 @@ driCreateNewContext(__DRIscreen *screen, const __GLcontextModes *modes,
 	return NULL;
     }
 
-    if (! (*dri_interface->createContext)(screen, modes->fbconfigID,
-					  &pcp->contextID, &pcp->hHWContext)) {
-	_mesa_free(pcp);
-	return NULL;
-    }
-
+    pcp->hHWContext = hwContext;
     pcp->driScreenPriv = psp;
     pcp->driDrawablePriv = NULL;
 
@@ -610,7 +604,6 @@ driCreateNewContext(__DRIscreen *screen, const __GLcontextModes *modes,
      */
 
     if (!psp->dummyContextPriv.driScreenPriv) {
-        psp->dummyContextPriv.contextID = 0;
         psp->dummyContextPriv.hHWContext = psp->pSAREA->dummy_context;
         psp->dummyContextPriv.driScreenPriv = psp;
         psp->dummyContextPriv.driDrawablePriv = NULL;
@@ -623,7 +616,6 @@ driCreateNewContext(__DRIscreen *screen, const __GLcontextModes *modes,
     pctx->unbindContext  = driUnbindContext;
 
     if ( !(*psp->DriverAPI.CreateContext)(modes, pcp, shareCtx) ) {
-        (void) (*dri_interface->destroyContext)(screen, pcp->contextID);
         _mesa_free(pcp);
         return NULL;
     }

src/mesa/drivers/dri/common/dri_util.h

@@ -326,11 +326,6 @@ struct __DRIdrawablePrivateRec {
  * Per-context private driver information.
  */
 struct __DRIcontextPrivateRec {
-    /**
-     * Kernel context handle used to access the device lock.
-     */
-    __DRIid contextID;
-
     /**
      * Kernel context handle used to access the device lock.
      */