Changeset 39415 in vbox

Timestamp:

Nov 25, 2011 8:11:23 AM (13 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

75039

Message:

CrOpenGL: comments

File:

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

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

@@ -320 +320 @@
 }
 
-
 static void renderspuAtiQuirk_ChkApply()
 {
@@ -333 +332 @@
     crInfo("This is an ATI card, taking care of fullscreen..");
 
+    /*
+     * ATI WDDM-based graphics have an issue with rendering fullscreen.
+     * See public tickets #9775 & #9267 .
+     * Namely ATI drivers check whether ogl window is foreground and fullscreen
+     * and if so - do D3DKMTSetDisplayMode for ogl surface,
+     * which prevented any other data from being displayed, no matter what.
+     *
+     * Here we check whether we're using an ATI card and if so, patch the ogl ICD driver's IAT
+     * to replace GetForegroundWindow reference with our renderspuAtiQuirk_GetForegroundWindow,
+     * which always returns NULL.
+     */
     renderspuAtiQuirk_Apply();
 }