a
    þdú
  ã                   @   s2   d dl Z d dlmZ d dlZG dd„ dejƒZdS )é    Nc                       sB   e Zd Z‡ fdd„Zddd„Zedd„ ƒZdd	„ Zd
d„ Z‡  Z	S )ÚHopeNetc                    s"  t t| ƒ ¡  |dkr tjjj}d| _tj	ddddddd| _
t d¡| _tjdd	| _tjddd
d| _|  |d|d ¡| _| j|d|d
 dd| _| j|d|d dd| _| j|d|d dd| _t d¡| _t d|j |¡| _t d|j |¡| _t d|j |¡| _t d¡ ¡ | _ d S )NÚresneté@   é   é   é   F)Úkernel_sizeÚstrideÚpaddingÚbiasT)Zinplaceé   )r   r	   r
   r   é€   )r	   é   i   éB   )!Úsuperr   Ú__init__ÚtorchvisionÚmodelsr   Z
BottleneckÚinplanesÚnnÚConv2dÚconv1ÚBatchNorm2dÚbn1ZReLUÚreluZ	MaxPool2dÚmaxpoolÚ_make_layerÚlayer1Úlayer2Úlayer3Úlayer4Z	AvgPool2dÚavgpoolZLinearÚ	expansionÚfc_yawÚfc_pitchÚfc_rollÚtorchZarangeÚfloatÚ
idx_tensor)ÚselfÚblockÚlayersZnum_bins©Ú	__class__© úg/var/www/html/stable-diffusion-webui/venv/lib/python3.9/site-packages/facexlib/headpose/hopenet_arch.pyr   	   s"    
zHopeNet.__init__r   c              	   C   sž   d }|dks| j ||j krLt tj| j ||j d|ddt ||j ¡¡}g }| || j |||ƒ¡ ||j | _ td|ƒD ]}| || j |ƒ¡ q|tj|Ž S )Nr   F)r   r	   r   )r   r"   r   Z
Sequentialr   r   ÚappendÚrange)r)   r*   ZplanesÚblocksr	   Z
downsampler+   Úir.   r.   r/   r      s    þzHopeNet._make_layerc                 C   s2   t  | | ¡}t  |t  |d¡ d¡ |¡¡}|S )Nr   )r&   ÚexpÚdivÚsumZ	unsqueezeZ	expand_as)ZtensorZtemperatureÚresultr.   r.   r/   Úsoftmax_temperature,   s     zHopeNet.softmax_temperaturec                 C   s,   |   |d¡}t || j |¡ d¡d d S )Nr   r   éc   )r8   r&   r6   r(   Ztype_as)r)   Zpredictr.   r.   r/   Ú
bin2degree2   s    zHopeNet.bin2degreec                 C   sª   |   |  |  |¡¡¡}|  |¡}|  |¡}|  |¡}|  |¡}|  |¡}|  |¡}| 	| 
d¡d¡}|  |¡}|  |¡}|  |¡}|  |¡}|  |¡}|  |¡}|||fS )Nr   éÿÿÿÿ)r   r   r   r   r   r   r   r    r!   ÚviewÚsizer#   r$   r%   r:   )r)   ÚxZpre_yawZ	pre_pitchZpre_rollZyawZpitchZrollr.   r.   r/   Úforward6   s    
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zHopeNet.forward)r   )
Ú__name__Ú
__module__Ú__qualname__r   r   Ústaticmethodr8   r:   r?   Ú__classcell__r.   r.   r,   r/   r      s   

r   )r&   Ztorch.nnr   r   ÚModuler   r.   r.   r.   r/   Ú<module>   s   