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#ifndef FBGL_PRELOAD_H
#define FBGL_PRELOAD_H
#include <stddef.h>
#include <sys/types.h>
// Framebuffer configuration
#define FBGL_SHM_KEY 0x1234FBCD
#define FBGL_WIDTH 800
#define FBGL_HEIGHT 600
#define FBGL_BPP 32
#define FBGL_BYTES_PP (FBGL_BPP / 8)
#define FBGL_PITCH (FBGL_WIDTH * FBGL_BYTES_PP)
#define FBGL_SIZE (FBGL_PITCH * FBGL_HEIGHT)
// Virtual framebuffer file descriptor magic number
#define FBGL_VIRTUAL_FD 1000
// Framebuffer state structure
typedef struct {
int virtual_fd; // Virtual file descriptor for /dev/fb0
void* shared_mem; // Pointer to shared memory
int shm_id; // Shared memory ID
int is_initialized; // Initialization flag
size_t total_writes; // Statistics: number of writes
size_t bytes_written; // Statistics: total bytes written
} fbgl_state_t;
// Original function pointers structure
typedef struct {
int (*open)(const char*, int, ...);
int (*close)(int);
int (*ioctl)(int, unsigned long, ...);
void* (*mmap)(void*, size_t, int, int, int, off_t);
int (*munmap)(void*, size_t);
ssize_t (*write)(int, const void*, size_t);
ssize_t (*read)(int, void*, size_t);
} fbgl_original_funcs_t;
#endif // FBGL_PRELOAD_H
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