From ab87978cbc71cd4c83648627998055a010700f05 Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Thu, 27 Jun 2024 13:12:43 -0500
Subject: 1836 dont store texture in system memory unless absolutely necessary
 (#1843)

* #1836 Texture memory usage overhaul.  Much decrufting
- don't keep a copy of textures in system memory
- use GPU to downrez textures instead of reloading from cache
- use GPU to generate brightness/darkness bumpmaps
---
 indra/newview/gltf/buffer_util.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'indra/newview/gltf/buffer_util.h')

diff --git a/indra/newview/gltf/buffer_util.h b/indra/newview/gltf/buffer_util.h
index 40f9448aaf..89cedf4a47 100644
--- a/indra/newview/gltf/buffer_util.h
+++ b/indra/newview/gltf/buffer_util.h
@@ -180,6 +180,16 @@ namespace LL
             data[3] = src[3];
         }
 
+        template<>
+        inline void copyVec4<U8, U64>(U8* src, U64& dst)
+        {
+            U8* data = (U8*)&dst;
+            data[0] = src[0];
+            data[1] = src[1];
+            data[2] = src[2];
+            data[3] = src[3];
+        }
+
         template<>
         inline void copyVec4<U16, LLColor4U>(U16* src, LLColor4U& dst)
         {
-- 
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