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ref_gl: rewrite ARB workaround to check EXT/OES names, notify user that function found with different name

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mittorn 2023-10-21 20:11:58 +03:00 committed by Alibek Omarov
parent bee81e9723
commit c1d1aa6787
1 changed files with 34 additions and 10 deletions
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44
ref/gl/gl_opengl.c
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@ -551,22 +551,46 @@ qboolean GL_CheckExtension( const char *name, const dllfunc_t *funcs, const char
// functions are cleared before all the extensions are evaluated // functions are cleared before all the extensions are evaluated
if((*func->func = (void *)gEngfuncs.GL_GetProcAddress( func->name )) == NULL ) if((*func->func = (void *)gEngfuncs.GL_GetProcAddress( func->name )) == NULL )
{ {
string name;
// HACK: fix ARB names // HACK: fix ARB names
char *str = Q_strstr( func->name, "ARB" ); const char *str = Q_strstr( func->name, "ARB" );
if(str) Q_strncpy( name, func->name, MAX_STRING );
if( str )
{ {
string name; name[str - func->name] = '\0'; // cut func suffix
// if this was glFuncARB, try glFunc
Q_strncpy( name, func->name, MAX_STRING );
name[str - func->name] = '\0';
*func->func = gEngfuncs.GL_GetProcAddress( name ); *func->func = gEngfuncs.GL_GetProcAddress( name );
if( !*func->func )
GL_SetExtension( r_ext, false );
} }
else else
// one or more functions are invalid, extension will be disabled {
// set pointer to func name end to cut it correctly
str = func->name + Q_strlen( func->name );
name[str - func->name] = '\0';
}
// try glFuncEXT
if( !*func->func )
{
Q_strncat( name, "EXT", MAX_STRING );
*func->func = gEngfuncs.GL_GetProcAddress( name );
}
#ifdef XASH_GLES
// try glFuncOES
if( !*func->func )
{
name[str - func->name] = '\0'; // cut EXT from previous try
Q_strncat( name, "OES", MAX_STRING );
*func->func = gEngfuncs.GL_GetProcAddress( name );
}
#endif
if( !*func->func )
GL_SetExtension( r_ext, false ); GL_SetExtension( r_ext, false );
else // GL_GetProcAddress prints errors about missing functions, so tell user that we found it with different name
gEngfuncs.Con_Printf( S_NOTE "found %s\n", name );
} }
} }
#endif #endif