SH-412 -- fix the way that redraws happen to eliminate flickering on resize -- patch from davep and seraph, I'm just applying it.

1 files changed, 13 insertions, 19 deletions

diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 40583f05bf..dbb3f9a7d0 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -95,6 +95,7 @@ BOOL gForceRenderLandFence = FALSE;
 BOOL gDisplaySwapBuffers = FALSE;
 BOOL gDepthDirty = FALSE;
 BOOL gResizeScreenTexture = FALSE;
+BOOL gWindowResized = FALSE;
 BOOL gSnapshot = FALSE;
 
 U32 gRecentFrameCount = 0; // number of 'recent' frames
@@ -218,22 +219,15 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 	LLMemType mt_render(LLMemType::MTYPE_RENDER);
 	LLFastTimer t(FTM_RENDER);
 
-	if (gResizeScreenTexture)
-	{ //skip render on frames where screen texture is resizing
+	if (gWindowResized)
+	{ //skip render on frames where window has been resized
 		gGL.flush();
-		if (!for_snapshot)
-		{
-			glClear(GL_COLOR_BUFFER_BIT);
-			gViewerWindow->mWindow->swapBuffers();
-		}
-	
-		gResizeScreenTexture = FALSE;
+		glClear(GL_COLOR_BUFFER_BIT);
+		gViewerWindow->mWindow->swapBuffers();
 		gPipeline.resizeScreenTexture();
-
-		if (!for_snapshot)
-		{
-			return;
-		}
+		gResizeScreenTexture = FALSE;
+		gWindowResized = FALSE;
+		return;
 	}
 
 	if (LLPipeline::sRenderDeferred)
@@ -665,11 +659,11 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
 				LLVertexBuffer::clientCopy(0.016);
 			}
 
-			//if (gResizeScreenTexture)
-			//{
-			//	gResizeScreenTexture = FALSE;
-			//	gPipeline.resizeScreenTexture();
-			//}
+			if (gResizeScreenTexture)
+			{
+				gResizeScreenTexture = FALSE;
+				gPipeline.resizeScreenTexture();
+			}
 
 			gGL.setColorMask(true, true);
 			glClearColor(0,0,0,0);