From 2c2b19bb7f508dbf0353cfd8843fab27d666a949 Mon Sep 17 00:00:00 2001
From: "alexey.lysiuk" <alexey.lysiuk@gmail.com>
Date: Thu, 10 May 2018 18:01:29 +0300
Subject: [PATCH] - fixed crash during autoloading of material textures

https://forum.zdoom.org/viewtopic.php?t=60546
---
 src/textures/texturemanager.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/textures/texturemanager.cpp b/src/textures/texturemanager.cpp
index d266a7a013..b922d8bb51 100644
--- a/src/textures/texturemanager.cpp
+++ b/src/textures/texturemanager.cpp
@@ -1050,9 +1050,12 @@ void FTextureManager::Init()
 	InitPalettedVersions();
 	AdjustSpriteOffsets();
 	// Add auto materials to each texture after everything has been set up.
-	for (auto &tex : Textures)
+	// Textures array can be reallocated in process, so ranged for loop is not suitable.
+	// There is no need to process discovered material textures here,
+	// CheckForTexture() did this already.
+	for (unsigned int i = 0, count = Textures.Size(); i < count; ++i)
 	{
-		tex.Texture->AddAutoMaterials();
+		Textures[i].Texture->AddAutoMaterials();
 	}
 
 	glLight = TexMan.CheckForTexture("glstuff/gllight.png", ETextureType::MiscPatch);