phase_align.h File Reference

Phase alignment for 8-bit bytes. More...

#include <blit/scan.h>

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Data Structures
struct	blit_phase_align
	Phase alignment structure. More...

Functions
void	blit_phase_align_start (struct blit_phase_align *align, int x, int x_store, const blit_scanline_t *store)
	Initialises the phase alignment structure.
void	blit_phase_align_prefetch (struct blit_phase_align *align)
	Prefetches the next byte into the alignment structure.
blit_scanline_t	blit_phase_align_fetch (struct blit_phase_align *align)
	Fetches the next byte from the phase alignment structure.

Detailed Description

Phase alignment for 8-bit bytes.

This header file defines the phase_align structure and functions for managing phase alignment of 8-bit bytes. It allows for fetching bytes with a specified shift, which is useful in scenarios where data needs to be aligned or shifted for processing, such as in graphics or display memory management.

Definition in file phase_align.h.

Function Documentation

blit_phase_align_fetch()

blit_scanline_t blit_phase_align_fetch

(

struct blit_phase_align *

align

)

Fetches the next byte from the phase alignment structure.

Parameters

align

Pointer to the phase alignment structure.

Returns

The fetched byte.

Definition at line 83 of file phase_align.c.

blit_phase_align_prefetch()

void blit_phase_align_prefetch

(

struct blit_phase_align *

align

)

Prefetches the next byte into the alignment structure.

This function prepares the phase alignment structure for the next byte fetch.

Parameters

align

Pointer to the phase alignment structure.

Definition at line 79 of file phase_align.c.

blit_phase_align_start()

void blit_phase_align_start	(	struct blit_phase_align *	align,
		int	x,
		int	x_store,
		const blit_scanline_t *	store
	)

Initialises the phase alignment structure.

This function sets up the phase alignment structure with the given parameters.

Parameters

align	Pointer to the phase alignment structure.
x	The destination bit position.
x_store	The source bit position.
store	Pointer to the data buffer.

Definition at line 48 of file phase_align.c.