gctf2023/pwn/flipper/dist/common/include/util/Bitmap.h

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2023-11-24 18:11:34 +00:00
#pragma once
#include "types.h"
#define BITMAP_BYTE_COUNT(number_of_bits) (number_of_bits / Bitmap::bits_per_bitmap_atom_ + ((number_of_bits % Bitmap::bits_per_bitmap_atom_ > 0) ? 1 : 0))
class Bitmap
{
public:
static uint8 const bits_per_bitmap_atom_;
Bitmap(size_t number_of_bits);
Bitmap(const Bitmap &bm);
~Bitmap();
bool setBit(size_t bit_number);
static bool setBit(uint8* b, size_t& num_bits_set, size_t bit_number);
bool getBit(size_t bit_number);
static bool getBit(uint8* b, size_t bit_number);
bool unsetBit(size_t bit_number);
static bool unsetBit(uint8* b, size_t& num_bits_set, size_t bit_number);
size_t getSize();
/**
* returns the number of bits set
* @return the number of bits set
*/
size_t getNumBitsSet();
/**
* returns the number of unset bits
* @return the number of unset bits
*/
size_t getNumFreeBits();
/**
* prints the bitmap using kprintfd
*/
void bmprint();
static void bmprint(uint8* b, size_t n, size_t num_bits_set);
/**
* sets a whole byte in the bitmap
* only use if you know what you are doing
* @param byte_number the number of the byte to set
* @param byte the byte to set
*/
void setByte(size_t byte_number, uint8 byte);
/**
* returns a whole byte of a given number
* only use if you know what you are doing
* @param byte_number the number of the byte to return
* @return the byte
*/
uint8 getByte(size_t byte_number);
private:
size_t size_;
size_t num_bits_set_;
uint8 *bitmap_;
};