o
    ॵi                     @   s   d dl Z d dlmZ d dlZd dlmZ d dlmZ d dl	m
Z
 e jeZe
de jede jedgd	ZG d
d deZG dd deZdddZdd ZdS )    N)abc)Function)
functional)load	upfirdn2dzupfirdn2d.cppzupfirdn2d_kernel.cu)sourcesc                   @   $   e Zd Zedd Zedd ZdS )UpFirDn2dBackwardc
                 C   s   |\}
}|\}}|\}}}}| d|	d |	d d}t|||||
|||||
}||d |d |d |d }| | |\}}}}|
| _|| _|| _|| _|| _	|| _
|| _|| _|| _|	| _|S )Nr            )reshapeupfirdn2d_opr   viewsave_for_backwardup_xup_ydown_xdown_ypad_x0pad_x1pad_y0pad_y1in_sizeout_size)ctxgrad_outputkernelgrad_kernelupdownpadg_padr   r   r   r   r   r   g_pad_x0g_pad_x1g_pad_y0g_pad_y1
grad_inputr   r   r   r    r)   c/home/ubuntu/.local/lib/python3.10/site-packages/modelscope/ops/human_image_generation/upfirdn2d.pyforward   s@   
zUpFirDn2dBackward.forwardc                 C   s   | j \}|d| jd | jd d}t||| j| j| j| j| j	| j
| j| j
}|| jd | jd | jd | jd }|d d d d d d d d f	S )Nr
   r   r   r   r   )saved_tensorsr   r   r   r   r   r   r   r   r   r   r   r   r   r   )r   gradgrad_inputr   gradgrad_outr)   r)   r*   backward?   s(   
zUpFirDn2dBackward.backwardN__name__
__module____qualname__staticmethodr+   r/   r)   r)   r)   r*   r	      s
    
)r	   c                   @   r   )	UpFirDn2dc                 C   sV  |\}}|\}}	|\}
}}}|j \}}|j \}}}}|j | _|d||d}| |t|ddg || | | | |	 |	 }|| |
 | | | | }||f| _||f| _||	f| _|
|||f| _	||
 d }|| d }|| ||  |
 | d }|| ||	  | | d }||||f| _
t||||||	|
|||
}|d|||}|S )Nr
   r   r   )shaper   r   r   torchflipr   r    r!   r"   r#   r   r   r   )r   inputr   r    r!   r"   r   r   r   r   r   r   r   r   kernel_hkernel_wbatchchannelin_hin_wout_hout_wr$   r&   r%   r'   outr)   r)   r*   r+   [   s0   



zUpFirDn2d.forwardc                 C   sL   | j \}}d }| jd rt|||| j| j| j| j| j| j		}|d d d d fS )Nr   )
r,   needs_input_gradr	   applyr    r!   r"   r#   r   r   )r   r   r   r   r(   r)   r)   r*   r/      s   

zUpFirDn2d.backwardNr0   r)   r)   r)   r*   r5   Y   s
    
#r5   r   r   r   c                 C   s   t |tjs
||f}t |tjs||f}t|dkr(|d |d |d |d f}| jjdkr=t| |g|||R  }|S t| ||||}|S )Nr   r   r   cpu)	
isinstancer   Iterablelendevicetypeupfirdn2d_nativer5   rD   )r9   r   r    r!   r"   rB   r)   r)   r*   r      s   c
                 C   s   | j \}
}}}| d||d} | j \}
}}}|j \}}| d|d|d|}t|ddd|d ddd|d g}|d|| || |}t|ddt|dt|dt|dt|	dg}|d d t| d|j d t|	 d t| d|j d t| d d d f }|dddd}|dd|| | |	 || | | g}t|ddgdd||}t	||}|d||| | |	 | d || | | | d }|dddd}|d d d d |d d |d d f }|| | |	 | | | }|| | | | | | }|d|||S )Nr
   r   r   r   r   )
r6   r   r   Fr"   maxpermuter7   r8   conv2d)r9   r   r   r   r   r   r   r   r   r   _r=   r>   r?   minorr:   r;   rB   wr@   rA   r)   r)   r*   rL      sJ   
$ &"$rL   )r   r   rE   )oscollectionsr   r7   torch.autogradr   torch.nnr   rM   torch.utils.cpp_extensionr   pathdirname__file__module_pathjoinr   r	   r5   r   rL   r)   r)   r)   r*   <module>   s"    	F
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