lib_fbraw.h

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#ifndef LINUX_LIBV2_SOURCE_FBUTIL_LIB_FBUTIL_H_
#define LINUX_LIBV2_SOURCE_FBUTIL_LIB_FBUTIL_H_

// Copyright 2024


#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdarg.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <linux/vt.h>
#include <linux/kd.h>
#include <linux/fb.h>
#include <arpa/inet.h>
#include "font.h"


#ifdef __cplusplus
#define FBUTIL_API extern "C"
#else
#define FBUTIL_API
#endif

    FBUTIL_API struct fb_data {
        char* fbdevice;                 
        int fb_fd;                      
        struct fb_fix_screeninfo fix;   
        struct fb_var_screeninfo var;   
        unsigned char *fbuffer;         
        unsigned char **line_addr;      
        int bytes_per_pixel;            
        unsigned int colormap [256];    
    };
    #define XORMODE 0x80000000          

    FBUTIL_API union multiptr
    {
        unsigned char *p8;      
        unsigned short *p16;    
        unsigned long *p32;     
    };
    FBUTIL_API int open_framebuffer(const char *dev, struct fb_data *f_data);
    
    FBUTIL_API void close_framebuffer(struct fb_data *f_data);

    FBUTIL_API void line(struct fb_data *f_data, int x1, int y1, int x2, int y2, unsigned colidx);

    FBUTIL_API void put_string(struct fb_data *f_data, int x, int y, char *s, unsigned colidx);
        
    FBUTIL_API void rect(struct fb_data *f_data, int x1, int y1, int x2, int y2, unsigned colidx);
    
    FBUTIL_API void fillrect(struct fb_data *f_data, int x1, int y1, int x2, int y2, unsigned colidx);
    
    FBUTIL_API void put_string_center(struct fb_data *f_data, int x, int y, char *s, unsigned colidx);
    
    FBUTIL_API void setcolor(struct fb_data *f_data, unsigned colidx, unsigned value);
    
    FBUTIL_API void progress_bar(struct fb_data *f_data, int progress, const char *fmt, ...);

    FBUTIL_API void put_cross(struct fb_data *f_data, int x, int y, unsigned colidx);

    FBUTIL_API int show_bmp(const char *fbp, struct fb_var_screeninfo *scrinfo, const char *bmpname);
    
    FBUTIL_API void *get_framebuffer(const char *dev, int *size);

    FBUTIL_API void free_framebuffer(void *buff, int size);

#endif