o
    i1                     @   s8   d dl Z d dlZdddZdddZdd Zd	d
 ZdS )    NFc              	   C   sN   | j s|j r
J dt| }t|j|j|j|j|j|j|j|\|_|_|S NzFusion only for eval!)	trainingcopydeepcopyfuse_conv_bn_weightsweightbiasrunning_meanrunning_vareps)convbn	transposeZ
fused_conv r   d/var/www/html/eduruby.in/lip-sync/lip-sync-env/lib/python3.10/site-packages/torch/nn/utils/fusion.pyfuse_conv_bn_eval   s   


r   c                 C   s   | j }|d ur
|j n|}	|d u rt|}|d u rt|}|d u r't|}t|| }
|r?ddgdgt| jd   }nddgdgt| jd   }| ||
 | j|d}|| |
 | | j|	d}tj	
|| jtj	
||jfS )N      )dtype)r   torch
zeros_likeZ	ones_likersqrtlenshapeZreshapetonn	Parameterrequires_grad)Zconv_wZconv_bbn_rmbn_rvbn_epsbn_wbn_br   Zconv_weight_dtypeZconv_bias_dtypeZbn_var_rsqrtr   Zfused_conv_wZfused_conv_br   r   r   r      s   


 r   c                 C   sL   | j s|j r
J dt| }t|j|j|j|j|j|j|j\|_|_|S r   )	r   r   r   fuse_linear_bn_weightsr   r   r	   r
   r   )Zlinearr   Zfused_linearr   r   r   fuse_linear_bn_eval%   s   
r%   c           
      C   sb   |d u r	t |}|t ||  }| |d }|| | | }	t j|| jt j|	|jfS )Nr   )r   r   r   Z	unsqueezer   r   r   )
Zlinear_wZlinear_br   r    r!   r"   r#   Zbn_scaleZfused_wZfused_br   r   r   r$   /   s   
 r$   )F)r   r   r   r   r%   r$   r   r   r   r   <module>   s   



