From ab775457178be9bb4f2f9f768e3971e9c555f0d6 Mon Sep 17 00:00:00 2001
From: Beq <beqjanus@gmail.com>
Date: Tue, 9 May 2023 16:31:06 +0100
Subject: [PATCH] FIX Opensim VarRregions with non-power of 2 sizes flood logs

---
 indra/newview/llsurface.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/indra/newview/llsurface.cpp b/indra/newview/llsurface.cpp
index 956808586e..593e3bd964 100644
--- a/indra/newview/llsurface.cpp
+++ b/indra/newview/llsurface.cpp
@@ -171,6 +171,16 @@ void LLSurface::create(const S32 grids_per_edge,
 	mMetersPerEdge = mMetersPerGrid * (mGridsPerEdge - 1);
 // <FS:CR> Aurora Sim
 	sTextureSize = width;
+
+	// Trap non-power of 2 widths to avoid GLtexture issues.
+	if ((sTextureSize & (sTextureSize - 1)) != 0)
+	{
+		// Not a power of 2, find the next power of 2
+		sTextureSize = 1 << static_cast<S32>( pow( 2, static_cast<S32>( ceil(log2(sTextureSize)) ) ) );
+	}
+
+	// Clamp to maximum limit
+	sTextureSize = std::min(sTextureSize, 1024);	
 // </FS:CR> Aurora Sim
 
 	mOriginGlobal.setVec(origin_global);