From ece32418e7c1828a65c88e526a5afcb635c5453a Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Tue, 31 May 2011 14:35:59 -0500
Subject: SH-1682 Dynamically adjust the number of texture channels to use for
 indexed texture rendering based on available hardware.

---
 indra/llrender/llgl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

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

diff --git a/indra/llrender/llgl.cpp b/indra/llrender/llgl.cpp
index 96b1838158..a8d7df3bc8 100644
--- a/indra/llrender/llgl.cpp
+++ b/indra/llrender/llgl.cpp
@@ -551,7 +551,7 @@ bool LLGLManager::initGL()
 	{
 		GLint num_tex_image_units;
 		glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, &num_tex_image_units);
-		mNumTextureImageUnits = num_tex_image_units;
+		mNumTextureImageUnits = llmin(num_tex_image_units, 32);
 	}
 
 	if (mHasTextureMultisample)
@@ -1516,6 +1516,7 @@ void LLGLState::checkTextureChannels(const std::string& msg)
 		}
 	}
 
+	stop_glerror();
 	gGL.getTexUnit(0)->activate();
 	glClientActiveTextureARB(GL_TEXTURE0_ARB);
 	stop_glerror();
-- 
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