MAINT-3491 FIXED If ALM is enabled while in wireframe mode, disabling wireframe mode results in a black screen.

3 files changed, 20 insertions, 1 deletions

diff --git a/indra/newview/llappviewer.cpp b/indra/newview/llappviewer.cpp
index fbf2a04bcc..260a3d8ce4 100755
--- a/indra/newview/llappviewer.cpp
+++ b/indra/newview/llappviewer.cpp
@@ -327,7 +327,10 @@ BOOL				gDisconnected = FALSE;
 // used to restore texture state after a mode switch
 LLFrameTimer	gRestoreGLTimer;
 BOOL			gRestoreGL = FALSE;
-BOOL				gUseWireframe = FALSE;
+BOOL			gUseWireframe = FALSE;
+
+//use for remember deferred mode in wireframe switch
+BOOL			gInitialDeferredModeForWireframe = FALSE;
 
 // VFS globals - see llappviewer.h
 LLVFS* gStaticVFS = NULL;
diff --git a/indra/newview/llappviewer.h b/indra/newview/llappviewer.h
index 718871138e..ad5268496b 100755
--- a/indra/newview/llappviewer.h
+++ b/indra/newview/llappviewer.h
@@ -375,6 +375,7 @@ extern BOOL		gDisconnected;
 extern LLFrameTimer	gRestoreGLTimer;
 extern BOOL			gRestoreGL;
 extern BOOL		gUseWireframe;
+extern BOOL		gInitialDeferredModeForWireframe;
 
 // VFS globals - gVFS is for general use
 // gStaticVFS is read-only and is shipped w/ the viewer
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index 38d62dee5e..de219edcff 100755
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -1245,9 +1245,24 @@ class LLAdvancedToggleWireframe : public view_listener_t
 	bool handleEvent(const LLSD& userdata)
 	{
 		gUseWireframe = !(gUseWireframe);
+
+		if (gUseWireframe)
+		{
+			gInitialDeferredModeForWireframe = LLPipeline::sRenderDeferred;
+		}
+
 		gWindowResized = TRUE;
 		LLPipeline::updateRenderDeferred();
 		gPipeline.resetVertexBuffers();
+
+		if (!gUseWireframe && !gInitialDeferredModeForWireframe && LLPipeline::sRenderDeferred != gInitialDeferredModeForWireframe && gPipeline.isInit())
+		{
+			LLPipeline::refreshCachedSettings();
+			gPipeline.releaseGLBuffers();
+			gPipeline.createGLBuffers();
+			LLViewerShaderMgr::instance()->setShaders();
+		}
+
 		return true;
 	}
 };