From f740214f9dbeda307841ee28c43229efec76463c Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Mon, 28 Jun 2010 16:09:36 -0500
Subject: Porting VBO changes from davep/viewer-release. Better usage of
 LLVertexBuffer::sEnableVBOs. Added RenderUseStreamVBO debug setting for
 controlling usage of VBOs for particles/avatars/etc.

---
 indra/llrender/llvertexbuffer.cpp | 12 +++++++++---
 indra/llrender/llvertexbuffer.h   |  2 ++
 2 files changed, 11 insertions(+), 3 deletions(-)

(limited to 'indra/llrender')

diff --git a/indra/llrender/llvertexbuffer.cpp b/indra/llrender/llvertexbuffer.cpp
index bf5eda21eb..e781c0ce77 100644
--- a/indra/llrender/llvertexbuffer.cpp
+++ b/indra/llrender/llvertexbuffer.cpp
@@ -61,6 +61,7 @@ BOOL LLVertexBuffer::sVBOActive = FALSE;
 BOOL LLVertexBuffer::sIBOActive = FALSE;
 U32 LLVertexBuffer::sAllocatedBytes = 0;
 BOOL LLVertexBuffer::sMapped = FALSE;
+BOOL LLVertexBuffer::sUseStreamDraw = TRUE;
 
 std::vector<U32> LLVertexBuffer::sDeleteList;
 
@@ -382,6 +383,11 @@ LLVertexBuffer::LLVertexBuffer(U32 typemask, S32 usage) :
 		mUsage = 0 ; 
 	}
 	
+	if (mUsage == GL_STREAM_DRAW_ARB && !sUseStreamDraw)
+	{
+		mUsage = 0;
+	}
+
 	S32 stride = calcStride(typemask, mOffsets);
 
 	mTypeMask = typemask;
@@ -813,7 +819,7 @@ BOOL LLVertexBuffer::useVBOs() const
 		return FALSE;
 	}
 #endif
-	return sEnableVBOs;
+	return TRUE;
 }
 
 //----------------------------------------------------------------------------
@@ -1177,7 +1183,7 @@ void LLVertexBuffer::setBuffer(U32 data_mask)
 	{		
 		if (mGLBuffer)
 		{
-			if (sEnableVBOs && sVBOActive)
+			if (sVBOActive)
 			{
 				glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
 				sBindCount++;
@@ -1189,7 +1195,7 @@ void LLVertexBuffer::setBuffer(U32 data_mask)
 				setup = TRUE; // ... or a client memory pointer changed
 			}
 		}
-		if (sEnableVBOs && mGLIndices && sIBOActive)
+		if (mGLIndices && sIBOActive)
 		{
 			/*if (sMapped)
 			{
diff --git a/indra/llrender/llvertexbuffer.h b/indra/llrender/llvertexbuffer.h
index b785a22976..ef0bdb21b4 100644
--- a/indra/llrender/llvertexbuffer.h
+++ b/indra/llrender/llvertexbuffer.h
@@ -84,6 +84,8 @@ public:
 	static LLVBOPool sStreamIBOPool;
 	static LLVBOPool sDynamicIBOPool;
 
+	static BOOL	sUseStreamDraw;
+
 	static void initClass(bool use_vbo);
 	static void cleanupClass();
 	static void setupClientArrays(U32 data_mask);
-- 
cgit v1.2.3