From 9e2d54a9afb1bdeb38c5e6a525a46c0ef9d9732b Mon Sep 17 00:00:00 2001
From: Eric Wasylishen <ewasylishen@gmail.com>
Date: Sun, 10 Apr 2016 15:39:49 -0700
Subject: [PATCH] light: handle bsp's with no textures

---
 light/ltface.c | 2 ++
 light/trace.c  | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/light/ltface.c b/light/ltface.c
index d2cac3f6..b0213c4b 100644
--- a/light/ltface.c
+++ b/light/ltface.c
@@ -1749,6 +1749,8 @@ static const char *
 Face_TextureName(const bsp2_t *bsp, const bsp2_dface_t *face)
 {
     int texnum = bsp->texinfo[face->texinfo].miptex;
+    if (!bsp->texdatasize)
+        return "";
     const dmiptexlump_t *miplump = bsp->dtexdata.header;
     if (!miplump->dataofs[texnum])
         return ""; //sometimes the texture just wasn't written. including its name.
diff --git a/light/trace.c b/light/trace.c
index 2eec8362..439d832d 100644
--- a/light/trace.c
+++ b/light/trace.c
@@ -148,6 +148,9 @@ Face_Contents(const bsp2_t *bsp, const bsp2_dface_t *face)
     if (!(bsp->texinfo[face->texinfo].flags & TEX_SPECIAL))
         return CONTENTS_SOLID;
     
+    if (!bsp->texdatasize)
+        return CONTENTS_SOLID; // no textures in bsp
+
     int texnum = bsp->texinfo[face->texinfo].miptex;
     const dmiptexlump_t *miplump = bsp->dtexdata.header;
     const miptex_t *miptex;