From 6469f1c2f21ecd3b15a18957d882ef6a16b17ecf Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Sun, 17 Jul 2011 00:24:08 -0500
Subject: SH-2031 High risk changeset, but potentially high reward.  Addresses
 frame stalls in renderer by never using the fixed function pipeline if
 shaders are available.

---
 indra/llrender/llimagegl.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'indra/llrender/llimagegl.cpp')

diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index 60a5962234..9ca3a23d52 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -1414,6 +1414,8 @@ BOOL LLImageGL::readBackRaw(S32 discard_level, LLImageRaw* imageraw, bool compre
 
 void LLImageGL::deleteDeadTextures()
 {
+	bool reset = false;
+
 	while (!sDeadTextureList.empty())
 	{
 		GLuint tex = sDeadTextureList.front();
@@ -1426,12 +1428,22 @@ void LLImageGL::deleteDeadTextures()
 			{
 				tex_unit->unbind(tex_unit->getCurrType());
 				stop_glerror();
+
+				if (i > 0)
+				{
+					reset = true;
+				}
 			}
 		}
 		
 		glDeleteTextures(1, &tex);
 		stop_glerror();
 	}
+
+	if (reset)
+	{
+		gGL.getTexUnit(0)->activate();
+	}
 }
 		
 void LLImageGL::destroyGLTexture()
-- 
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