/*
* Handle situations where the application declares an array like
*
* uniform vec4 myMatrix[4];
*
* then calls glGetUniformLocation(..., "myMatrix") and then infer the slot
* numbers rather than explicitly calling glGetUniformLocation(...,
* "myMatrix[0]"), etc.
*/
T lookupUniformLocation(const T &key) {
typename base_type::const_iterator it;
it = base.upper_bound(key);
if (it != base.begin()) {
--it;
} else {
return (base[key] = key);
}
T t = it->second + (key - it->first);
return t;
}
