Changeset 44887 in vbox for trunk/src/VBox/HostServices/SharedOpenGL/render/renderspu.c

Timestamp:

Mar 1, 2013 3:20:32 PM (12 years ago)

Author:

vboxsync

Message:

crOpenGL: more window attr handling fixes

File:

• trunk/src/VBox/HostServices/SharedOpenGL/render/renderspu.c (modified) (2 diffs)

trunk/src/VBox/HostServices/SharedOpenGL/render/renderspu.c

@@ -421 +421 @@
         showIt = 0;
     else
-        showIt = window->BltInfo.Base.id != CR_RENDER_DEFAULT_WINDOW_ID;
-
+        showIt = (id != CR_RENDER_DEFAULT_WINDOW_ID);
 
     /*
@@ -813 +812 @@
         crWarning("RTCritSectEnter failed rc %d", rc);
     }
+}
+
+static void renderspuVBoxCompositorClearAllCB(unsigned long key, void *data1, void *data2)
+{
+    WindowInfo *window = (WindowInfo *) data1;
+    renderspuVBoxCompositorSet(window, NULL);
+}
+
+void renderspuVBoxCompositorClearAll()
+{
+    /* we need to clear window compositor, which is not that trivial though,
+     * since the lock order used in presentation thread is compositor lock() -> hash table lock (aquired for id->window resolution)
+     * this is why, to prevent potential deadlocks, we use crHashtableWalkUnlocked that does not hold the table lock
+     * we are can be sure noone will modify the table here since renderspuVBoxCompositorClearAll can be called in the command (hgcm) thread only,
+     * and the table can be modified from that thread only as well */
+    crHashtableWalkUnlocked(render_spu.windowTable, renderspuVBoxCompositorClearAllCB, NULL);
 }