32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
#ifndef __GE_FPS_H__
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#define __GE_FPS_H__
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#include <ge_common.h>
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struct ge_fps_controller;
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typedef struct ge_fps_controller ge_fps_controller_t;
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typedef ge_u32_t (*ge_fps_get_us_func_t)(void);
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typedef void (*ge_fps_sleep_us_func_t)(ge_u32_t us);
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void ge_fps_init(ge_fps_controller_t* fps_ctrl, ge_u32_t target_fps,
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ge_fps_get_us_func_t get_ms, ge_fps_sleep_us_func_t sleep_ms);
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void ge_fps_begin_frame(ge_fps_controller_t* fps_ctrl);
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void ge_fps_end_frame(ge_fps_controller_t* fps_ctrl);
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// FPS控制器结构体
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struct ge_fps_controller {
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ge_u32_t target_fps; // 目标帧率
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ge_u32_t frame_duration; // 目标每帧时长(毫秒)
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ge_u32_t last_frame_time; // 上一帧开始时间
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ge_u32_t frame_time; // 当前帧耗时
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ge_u32_t sleep_time; // 需要休眠的时间
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ge_u32_t frame_count; // 帧计数器
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ge_u32_t fps; // 实际帧率
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ge_u32_t last_fps_time; // 上次计算FPS的时间
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ge_fps_get_us_func_t call_get_us;
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ge_fps_sleep_us_func_t call_sleep_us;
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};
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#endif // __GE_FPS_H__
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