#ifndef __GE_FPS_H__
#define __GE_FPS_H__

#include <ge_common.h>
struct ge_fps_controller;
typedef struct ge_fps_controller ge_fps_controller_t;

typedef ge_u32_t (*ge_fps_get_ms_func_t)(void);
typedef void (*ge_fps_sleep_ms_func_t)(ge_u32_t ms);

void ge_fps_init(ge_fps_controller_t* fps_ctrl, ge_u32_t target_fps,
    ge_fps_get_ms_func_t get_ms, ge_fps_sleep_ms_func_t sleep_ms);
void ge_fps_begin_frame(ge_fps_controller_t* fps_ctrl);
void ge_fps_end_frame(ge_fps_controller_t* fps_ctrl);

// FPS控制器结构体
struct ge_fps_controller {
    ge_u32_t target_fps;        // 目标帧率
    ge_u32_t frame_duration;    // 目标每帧时长(毫秒)
    ge_u32_t last_frame_time;   // 上一帧开始时间
    ge_u32_t frame_time;        // 当前帧耗时
    ge_u32_t sleep_time;        // 需要休眠的时间
    ge_u32_t frame_count;       // 帧计数器
    ge_u32_t fps;               // 实际帧率
    ge_u32_t last_fps_time;     // 上次计算FPS的时间

    ge_fps_get_ms_func_t call_get_ms;
    ge_fps_sleep_ms_func_t call_sleep_ms;
};

#endif // __GE_FPS_H__