From d16a26aa83ac2a55a1d30d608d8a81c12d1b8694 Mon Sep 17 00:00:00 2001
From: David Heidelberg <david@ixit.cz>
Date: Mon, 30 Aug 2021 11:46:16 +0200
Subject: [PATCH] Enable DTX1 and 3 on RW GL (where applicable)

DTX1 and DTX3 is supported by Linux drivers for long time and
it can be enable at least where is the hardware support available.

- improves first time loading
- save about 183 MB on storage
- saves GPU memory (not measured)
- brings slightly performance boost (1-2 fps on Intel HD 620)
---
 src/rw/TexRead.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/rw/TexRead.cpp b/src/rw/TexRead.cpp
index 1f96180b..13c200a1 100644
--- a/src/rw/TexRead.cpp
+++ b/src/rw/TexRead.cpp
@@ -294,7 +294,7 @@ CanVideoCardDoDXT(void)
 #ifdef LIBRW
 	// TODO
 #ifdef RW_OPENGL
-	return false;
+	return rw::gl3::gl3Caps.dxtSupported;
 #else
 	return true;
 #endif