sTIDL_CustomParams_t Struct Reference

Detailed Description

This structure defines the parameters for custom layer in TIDL.

Data Fields
int32_t	customLayerType
int32_t	padW
int32_t	padH
int32_t	memOverlapType
int32_t	doesLayerChangePadding
int32_t	doesLayerFillOutXPadding
int32_t	rsvdPassThrough

Field Documentation

customLayerType

int32_t sTIDL_CustomParams_t::customLayerType

Type of the custom layer

padW

int32_t sTIDL_CustomParams_t::padW

Horizontal Padding requirement in number of elements. This is the padding amount expected by the processing function on input

padH

int32_t sTIDL_CustomParams_t::padH

Vertical Padding requirement in number of elements.This is the padding amount expected by the processing function on input

memOverlapType

int32_t sTIDL_CustomParams_t::memOverlapType

Parameter specifying whether input and output memory can overlap 0: Input cannot be overwritten by output 1: Input can be overwritten by input Note : By default this will be 0

doesLayerChangePadding

int32_t sTIDL_CustomParams_t::doesLayerChangePadding

Parameter to indicate whether the input and output padding of the custom layer can change or not. This information is used by TIDL to reomve the output padding if consumer layer's doesn't need it and similarly add output padding if required by the consumer layer's. Note : By default this will be 0

doesLayerFillOutXPadding

int32_t sTIDL_CustomParams_t::doesLayerFillOutXPadding

This parameter indicates whether the custom layer can fill the column padding area with zero as parts of its processing. As such TIDL always perform the padding in Y direction (top and bottom padding, marked as y in below figure) so it is advisable that custom layer writer doesn't worry about making the padding pixels in Y direction to be zero. But in X direction (Left and right padding) padding pixels can be zeroed out by custom layer writer if it is easy and optimal as part of kernel processing of that layer and if not then TIDL will perform the padding. Another point to note is that TIDL has only one padding in X direction and it uses the same padding for left and right padding. This is how the padding layout looks in the buffer, here "y" is the top and bottom padding region, x is the left padding and "-" the active region of the kernel. Note that there is no right padding in the buffer, so processing function is expected to use this layout for processing:

yyyyyyyyyyyyyyyyyyyyyyyyyyyy y------------------------— x------------------------— x------------------------— x------------------------— x------------------------— x------------------------— xyyyyyyyyyyyyyyyyyyyyyyyyyyy y

Note : By default this will be 0

rsvdPassThrough

int32_t sTIDL_CustomParams_t::rsvdPassThrough

This is a pass through variable and user shouldn't program/update it