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fix(refr): fix performance monitor NULL pointer access (#3105)

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* fix(refr) performance monitor NULL pointer access

* doc(refr): describe the setting of LV_DISP_DEF_REFR_PERIOD

Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>
This commit is contained in:
_VIFEXTech
2022-02-18 18:32:16 +08:00
committed by GitHub
parent c49430bfd4
commit 2be4e82991
2 changed files with 10 additions and 1 deletions
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9
src/core/lv_refr.c
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@@ -376,9 +376,16 @@ void _lv_disp_refr_timer(lv_timer_t * tmr)
}
else {
perf_monitor.perf_last_time = lv_tick_get();
uint32_t fps_limit = 1000 / disp_refr->refr_timer->period;
uint32_t fps_limit;
uint32_t fps;
if(disp_refr->refr_timer) {
fps_limit = 1000 / disp_refr->refr_timer->period;
}
else {
fps_limit = 1000 / LV_DISP_DEF_REFR_PERIOD;
}
if(perf_monitor.elaps_sum == 0) {
perf_monitor.elaps_sum = 1;
}