attempting workaround for S3 graphics bug

git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@3729 e016b1c5-ed68-44aa-a2f7-31cac88cffde

source/src/rendergl.cpp

@@ -39,6 +39,7 @@ int glext(char *ext)
 COMMAND(glext, ARG_1EST);
 
 VAR(ati_mda_bug, 0, 0, 1);
+VAR(s3_dlist_bug, 0, 0, 1);
 
 void gl_checkextensions()
 {
@@ -49,6 +50,8 @@ void gl_checkextensions()
     conoutf("Renderer: %s (%s)", renderer, vendor);
     conoutf("Driver: %s", version);
 
+	if(strstr(vendor, "S3 Graphics")) s3_dlist_bug = 1;
+
     if(strstr(exts, "GL_EXT_texture_env_combine") || strstr(exts, "GL_ARB_texture_env_combine")) hasTE = true;
     else conoutf("WARNING: cannot use overbright lighting, using old lighting model!");