static void updateUniformIV (const string &uniform, usize count, const s32 *val)
{
    sUniformCallbacks[uniform] = [count, val] (Program *prog, const string &uniform)
        {
            Uniform uni = prog->getUniform(uniform);
            uni.setIV(count, val);
        };

    for each (auto i in sPrograms)
    {
        const Program *prog = i.second;
        Uniform uni = prog->getUniform(uniform);
        uni.setIV(count, val);
    }
}