mpix/op_convert.h

Implementing new conversion operations. More...

Macros
#define	MPIX_REGISTER_CONVERT_OP(id, fn, format_in, format_out)
	Define a new format conversion operation.

Functions
uint8_t	mpix_rgb24_get_luma_bt709 (const uint8_t rgb24[3])
	Get the luminance (luma channel) of an RGB24 pixel.
void	mpix_convert_rgb24_to_rgb24 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to RGB24 (null conversion).
void	mpix_convert_rgb332_to_rgb24 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB332 to RGB24.
void	mpix_convert_rgb24_to_rgb332 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to RGB332 little-endian.
void	mpix_convert_rgb565le_to_rgb24 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB565 little-endian to RGB24.
void	mpix_convert_rgb565be_to_rgb24 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB565 big-endian to RGB24.
void	mpix_convert_rgb24_to_rgb565le (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to RGB565 little-endian.
void	mpix_convert_rgb24_to_rgb565be (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to RGB565 big-endian.
void	mpix_convert_yuyv_to_rgb24_bt709 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from YUYV to RGB24 (BT.709 coefficients).
void	mpix_convert_rgb24_to_yuyv_bt709 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to YUYV (BT.709 coefficients).
void	mpix_convert_rgb24_to_yuv24_bt709 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to YUV24 (BT.709 coefficients).
void	mpix_convert_yuv24_to_rgb24_bt709 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from YUV24 to RGB24 (BT.709 coefficients).
void	mpix_convert_yuyv_to_yuv24 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from YUYV to YUV24.
void	mpix_convert_yuv24_to_yuyv (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from YUV24 to YUYV.
void	mpix_convert_y8_to_rgb24_bt709 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from Y8 to RGB24.
void	mpix_convert_rgb24_to_y8_bt709 (const uint8_t *src, uint8_t *dst, uint16_t width)
	Convert a line of pixel data from RGB24 to Y8.
void	mpix_op_convert (struct mpix_base_op *op)
	Helper to turn a format conversion function into an operation.

Detailed Description

Implementing new conversion operations.

SPDX-License-Identifier: Apache-2.0

Macro Definition Documentation

MPIX_REGISTER_CONVERT_OP

#define MPIX_REGISTER_CONVERT_OP	(		id,
			fn,
			format_in,
			format_out
	)

Value:

    const struct mpix_convert_op mpix_convert_op_##id = {                                      \
        .base.name = ("convert_" #id),                                                     \
        .base.format_src = (MPIX_FMT_##format_in),                                         \
        .base.format_dst = (MPIX_FMT_##format_out),                                        \
        .base.window_size = 1,                                                             \
        .base.run = (mpix_convert_op),                                                     \
        .convert_fn = (fn),                                                                \
    }

Define a new format conversion operation.

Parameters

id	Short identifier to differentiate operations of the same type.
fn	Function converting one input line.
format_in	The input format for that operation.
format_out	The Output format for that operation.

Function Documentation

mpix_convert_rgb24_to_rgb24()

void mpix_convert_rgb24_to_rgb24	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to RGB24 (null conversion).

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb24_to_rgb332()

void mpix_convert_rgb24_to_rgb332	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to RGB332 little-endian.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb24_to_rgb565be()

void mpix_convert_rgb24_to_rgb565be	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to RGB565 big-endian.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb24_to_rgb565le()

void mpix_convert_rgb24_to_rgb565le	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to RGB565 little-endian.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb24_to_y8_bt709()

void mpix_convert_rgb24_to_y8_bt709	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to Y8.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb24_to_yuv24_bt709()

void mpix_convert_rgb24_to_yuv24_bt709	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to YUV24 (BT.709 coefficients).

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb24_to_yuyv_bt709()

void mpix_convert_rgb24_to_yuyv_bt709	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB24 to YUYV (BT.709 coefficients).

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb332_to_rgb24()

void mpix_convert_rgb332_to_rgb24	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB332 to RGB24.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb565be_to_rgb24()

void mpix_convert_rgb565be_to_rgb24	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB565 big-endian to RGB24.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_rgb565le_to_rgb24()

void mpix_convert_rgb565le_to_rgb24	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from RGB565 little-endian to RGB24.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_y8_to_rgb24_bt709()

void mpix_convert_y8_to_rgb24_bt709	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from Y8 to RGB24.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_yuv24_to_rgb24_bt709()

void mpix_convert_yuv24_to_rgb24_bt709	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from YUV24 to RGB24 (BT.709 coefficients).

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_yuv24_to_yuyv()

void mpix_convert_yuv24_to_yuyv	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from YUV24 to YUYV.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_yuyv_to_rgb24_bt709()

void mpix_convert_yuyv_to_rgb24_bt709	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from YUYV to RGB24 (BT.709 coefficients).

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_convert_yuyv_to_yuv24()

void mpix_convert_yuyv_to_yuv24	(	const uint8_t *	src,
		uint8_t *	dst,
		uint16_t	width
	)

Convert a line of pixel data from YUYV to YUV24.

See mpix/formats.h for the definition of the input and output formats.

You only need to call this function to work directly on raw buffers. See mpix_image_convert for converting between formats.

Parameters

src	Buffer of the input line in the format, XXX in mpix_convert_XXX_to_YYY().
dst	Buffer of the output line in the format, YYY in mpix_convert_XXX_to_YYY().
width	Width of the lines in number of pixels.

mpix_op_convert()

void mpix_op_convert

(

struct mpix_base_op *

op

)

Helper to turn a format conversion function into an operation.

The line conversion function is to be provided in op->arg0. It processes on the input line to convert it to the destination format.

Parameters

op	Current operation in progress.

mpix_rgb24_get_luma_bt709()

uint8_t mpix_rgb24_get_luma_bt709

(

const uint8_t

rgb24[3]

)

Get the luminance (luma channel) of an RGB24 pixel.

Parameters

rgb24

Pointer to an RGB24 pixel: red, green, blue channels.