From 51fcae8cec1210cad2650283cd17cc4100d52252 Mon Sep 17 00:00:00 2001
From: SNMetamorph <25657591+SNMetamorph@users.noreply.github.com>
Date: Thu, 3 Mar 2022 13:51:05 +0400
Subject: [PATCH] ref_gl: gl_image: added check for hardware support of
 BC6H/BC7 compression formats

---
 ref_gl/gl_image.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/ref_gl/gl_image.c b/ref_gl/gl_image.c
index ac5696dc..1b5ed033 100644
--- a/ref_gl/gl_image.c
+++ b/ref_gl/gl_image.c
@@ -1176,6 +1176,15 @@ static qboolean GL_UploadTexture( gl_texture_t *tex, rgbdata_t *pic )
 		return false;
 	}
 
+	if( pic->type == PF_BC6H_SIGNED || pic->type == PF_BC6H_UNSIGNED || pic->type == PF_BC7 )
+	{
+		if( !GL_Support( GL_ARB_TEXTURE_COMPRESSION_BPTC ))
+		{
+			gEngfuncs.Con_DPrintf( S_ERROR "GL_UploadTexture: BC6H/BC7 compression formats is not supported by your hardware\n" );
+			return false;
+		}
+	}
+
 	GL_SetTextureDimensions( tex, pic->width, pic->height, pic->depth );
 	GL_SetTextureFormat( tex, pic->type, pic->flags );