bitmap.h File Reference

(29312b1 fbconsole, panic: render panic after framebuffer was given to userspace - without clearing screen contents)

#include <stdint.h>
#include <stdbool.h>

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Typedefs
typedef uint8_t *	bitmap_t
	Type for a single entry in the array.

Functions
static size_t	bitmap_size (size_t num_entries)
	Return the size of the bitmap in bytes for a given amount of entries.
static uint64_t	bitmap_idx (uint64_t entry)
	Return the index in the bitmap array for the given bitmap index.
static uint8_t	bitmap_bit (uint64_t entry)
	Return the bitmask for the given bitmap index.
static bool	bitmap_get (bitmap_t bitmap, uint64_t entry)
	Retrieve state of the given entry from bitmap.
static void	bitmap_set (bitmap_t bitmap, uint64_t entry)
	Set given entry in bitmap.
static void	bitmap_clear (bitmap_t bitmap, uint64_t entry)
	Unset given entry in bitmap.

Typedef Documentation

bitmap_t

typedef uint8_t* bitmap_t

Type for a single entry in the array.

Definition at line 8 of file bitmap.h.

Function Documentation

bitmap_bit()

static uint8_t bitmap_bit ( uint64_t  entry )

inlinestatic

Return the bitmask for the given bitmap index.

Definition at line 21 of file bitmap.h.

References entry.

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bitmap_clear()

static void bitmap_clear ( bitmap_t  bitmap, uint64_t  entry  )

inlinestatic

Unset given entry in bitmap.

Definition at line 36 of file bitmap.h.

References bitmap_idx(), and entry.

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bitmap_get()

static bool bitmap_get ( bitmap_t  bitmap, uint64_t  entry  )

inlinestatic

Retrieve state of the given entry from bitmap.

Definition at line 26 of file bitmap.h.

References bitmap_bit(), bitmap_idx(), and entry.

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bitmap_idx()

static uint64_t bitmap_idx ( uint64_t  entry )

inlinestatic

Return the index in the bitmap array for the given bitmap index.

Definition at line 16 of file bitmap.h.

References entry.

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bitmap_set()

static void bitmap_set ( bitmap_t  bitmap, uint64_t  entry  )

inlinestatic

Set given entry in bitmap.

Definition at line 31 of file bitmap.h.

References bitmap_bit(), bitmap_idx(), and entry.

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bitmap_size()

static size_t bitmap_size ( size_t  num_entries )

inlinestatic

Return the size of the bitmap in bytes for a given amount of entries.

Definition at line 11 of file bitmap.h.

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