rc_pixop.h File Reference

RAPP Compute layer pixelwise operations. More...

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Functions
RC_EXPORT void	rc_pixop_set_u8 (uint8_t *buf, int dim, int width, int height, unsigned value)
	Set all pixels to a constant value.
RC_EXPORT void	rc_pixop_not_u8 (uint8_t *buf, int dim, int width, int height)
	Negate all pixels.
RC_EXPORT void	rc_pixop_flip_u8 (uint8_t *buf, int dim, int width, int height)
	Flip the sign bit.
RC_EXPORT void	rc_pixop_lut_u8 (uint8_t *restrict buf, int dim, int width, int height, const uint8_t *restrict lut)
	Lookup-table transformation.
RC_EXPORT void	rc_pixop_abs_u8 (uint8_t *buf, int dim, int width, int height)
	Absolute value.
RC_EXPORT void	rc_pixop_addc_u8 (uint8_t *buf, int dim, int width, int height, int value)
	Add signed constant.
RC_EXPORT void	rc_pixop_lerpc_u8 (uint8_t *buf, int dim, int width, int height, unsigned value, unsigned alpha8)
	Linear interpolation with a constant.
RC_EXPORT void	rc_pixop_lerpnc_u8 (uint8_t *buf, int dim, int width, int height, unsigned value, unsigned alpha8)
	Linear interpolation with a constant, rounded towards the constant value.
RC_EXPORT void	rc_pixop_add_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Saturated addition.
RC_EXPORT void	rc_pixop_avg_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Average value.
RC_EXPORT void	rc_pixop_sub_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Saturated subtraction.
RC_EXPORT void	rc_pixop_subh_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Halved subtraction.
RC_EXPORT void	rc_pixop_suba_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	Absolute-value subtraction.
RC_EXPORT void	rc_pixop_lerp_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height, unsigned alpha8)
	Linear interpolation.
RC_EXPORT void	rc_pixop_lerpn_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height, unsigned alpha8)
	Linear interpolation with non-zero update, i.e.
RC_EXPORT void	rc_pixop_lerpi_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height, unsigned alpha8)
	Linear interpolation with inverted second operand.
RC_EXPORT void	rc_pixop_norm_u8 (uint8_t *restrict dst, int dst_dim, const uint8_t *restrict src, int src_dim, int width, int height)
	L1 norm.

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Detailed Description

RAPP Compute layer pixelwise operations.

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Function Documentation

RC_EXPORT void rc_pixop_abs_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height
	)

Absolute value.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_add_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Saturated addition.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_addc_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height,
		int	value
	)

Add signed constant.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	value	The signed value to add.

RC_EXPORT void rc_pixop_avg_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Average value.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_flip_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height
	)

Flip the sign bit.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_lerp_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height,
		unsigned	alpha8
	)

Linear interpolation.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	alpha8	Q.8 blend factor, 0-0x100.

RC_EXPORT void rc_pixop_lerpc_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height,
		unsigned	value,
		unsigned	alpha8
	)

Linear interpolation with a constant.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	value	Value to interpolate with, 0-255.
	alpha8	Q.8 blend factor, 0-0x100.

RC_EXPORT void rc_pixop_lerpi_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height,
		unsigned	alpha8
	)

Linear interpolation with inverted second operand.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	alpha8	Q.8 blend factor, 0-0x100.

RC_EXPORT void rc_pixop_lerpn_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height,
		unsigned	alpha8
	)

Linear interpolation with non-zero update, i.e.

rounded towards src.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	alpha8	Q.8 blend factor, 0-0x100.

RC_EXPORT void rc_pixop_lerpnc_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height,
		unsigned	value,
		unsigned	alpha8
	)

Linear interpolation with a constant, rounded towards the constant value.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	value	Value to interpolate with, 0-255.
	alpha8	Q.8 blend factor, 0-0x100.

RC_EXPORT void rc_pixop_lut_u8	(	uint8_t *restrict	buf,
		int	dim,
		int	width,
		int	height,
		const uint8_t *restrict	lut
	)

Lookup-table transformation.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.
[in]	lut	8-bit lookup table to use.

RC_EXPORT void rc_pixop_norm_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

L1 norm.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_not_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height
	)

Negate all pixels.

Parameters:

[in,out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_set_u8	(	uint8_t *	buf,
		int	dim,
		int	width,
		int	height,
		unsigned	value
	)

Set all pixels to a constant value.

Parameters:

[out]	buf	Pixel buffer process.
	dim	Row dimension of the pixel buffer.
	width	Image width in pixels.
	height	Image height in pixels.
	value	The value to set, 0-255.

RC_EXPORT void rc_pixop_sub_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Saturated subtraction.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_suba_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Absolute-value subtraction.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.

RC_EXPORT void rc_pixop_subh_u8	(	uint8_t *restrict	dst,
		int	dst_dim,
		const uint8_t *restrict	src,
		int	src_dim,
		int	width,
		int	height
	)

Halved subtraction.

Parameters:

[in,out]	dst	Destination pixel buffer.
	dst_dim	Row dimension of the destination buffer.
[in]	src	Source pixel buffer.
	src_dim	Row dimension of the source buffer.
	width	Image width in pixels.
	height	Image height in pixels.