WARPEDMODEL_PREC_BITS
gm_params->alpha = clamp_val(mat[2] - (1 << WARPEDMODEL_PREC_BITS), S16_MIN, S16_MAX);
gv = ((long long)mat[4] * (1 << WARPEDMODEL_PREC_BITS)) * y;
(1 << WARPEDMODEL_PREC_BITS), S16_MIN, S16_MAX);
*alpha = clamp_val(mat[2] - (1 << WARPEDMODEL_PREC_BITS), S16_MIN, S16_MAX);
gv = ((long long)mat[4] * (1 << WARPEDMODEL_PREC_BITS)) * y;
(int)AV1_DIV_ROUND_UP_POW2_SIGNED(dv, shift) - (1 << WARPEDMODEL_PREC_BITS),