linux/drivers/media/video/mxc/opl/opl.h File Reference

The OPL (Open Primitives Library) Image Processing library defines efficient functions for rotation and mirroring. More...

Enumerations
enum	opl_error
Functions
int	opl_rotate90_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)
int	opl_rotate180_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)
int	opl_rotate270_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)
int	opl_hmirror_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)
int	opl_vmirror_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)
int	opl_rotate90_vmirror_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)
int	opl_rotate270_vmirror_u16 (const u8 *src, int src_line_stride, int width, int height, u8 *dst, int dst_line_stride)

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Detailed Description

The OPL (Open Primitives Library) Image Processing library defines efficient functions for rotation and mirroring.

It includes ARM9-optimized rotation and mirroring functions. It is derived from the original OPL project which is found at sourceforge.freescale.net.

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Enumeration Type Documentation

enum opl_error

Enumerations of opl error code

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Function Documentation

int opl_hmirror_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Mirror a 16bpp buffer horizontally.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

int opl_rotate180_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Rotate a 16bbp buffer 180 degrees clockwise.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

int opl_rotate270_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Rotate a 16bbp buffer 270 degrees clockwise.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

References opl_rotate270_u16().

Referenced by opl_rotate270_u16().

int opl_rotate270_vmirror_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Rotate a 16bbp buffer 270 degrees clockwise and mirror vertically It is equivalent to rotate 90 degree and mirror horizontally.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

References opl_rotate270_vmirror_u16().

Referenced by opl_rotate270_vmirror_u16().

int opl_rotate90_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Rotate a 16bbp buffer 90 degrees clockwise.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

References opl_rotate90_u16().

Referenced by opl_rotate90_u16().

int opl_rotate90_vmirror_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Rotate a 16bbp buffer 90 degrees clockwise and mirror vertically It is equivalent to rotate 270 degree and mirror horizontally.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

References opl_rotate90_vmirror_u16().

Referenced by opl_rotate90_vmirror_u16().

int opl_vmirror_u16	(	const u8 *	src,
		int	src_line_stride,
		int	width,
		int	height,
		u8 *	dst,
		int	dst_line_stride
	)

Mirror a 16bpp buffer vertically.

Parameters:

	src	Pointer to the input buffer
	src_line_stride	Length in bytes of a raster line of the input buffer
	width	Width in pixels of the region in the input buffer
	height	Height in pixels of the region in the input buffer
	dst	Pointer to the output buffer
	dst_line_stride	Length in bytes of a raster line of the output buffer

Returns:

Standard OPL error code. See enumeration for possible result codes.

References opl_vmirror_u16().

Referenced by opl_vmirror_u16().