struct error_weighting_params
{
    float rgb_power;
    float rgb_base_weight;
    float rgb_mean_weight;
    float rgb_stdev_weight;
    float alpha_power;
    float alpha_base_weight;
    float alpha_mean_weight;
    float alpha_stdev_weight;
    float rgb_mean_and_stdev_mixing;
    int mean_stdev_radius;
    int enable_rgb_scale_with_alpha;
    int alpha_radius;
    int ra_normal_angular_scale;
    float block_artifact_suppression;
    float rgba_weights[4];

    float block_artifact_suppression_expanded[MAX_TEXELS_PER_BLOCK];

    // parameters that deal with heuristic codec speedups
    int partition_search_limit;
    float block_mode_cutoff;
    float texel_avg_error_limit;
    float partition_1_to_2_limit;
    float lowest_correlation_cutoff;
    int max_refinement_iters;
};