perf(lcd): cache idle eye frames and anchor blink timing

2026-10-09 17:03:10 +08:00
parent b5c8aeb4fe
commit 89e8e3abc2
4 changed files with 382 additions and 19 deletions
@@ -0,0 +1,58 @@
+from pathlib import Path
+import re, subprocess, tempfile
+src=(Path(__file__).resolve().parents[1]/'components/platform/src/lcd_direct.c').read_text()
+def extract(name):
+    m=re.search(r'static [^;{}]+\b'+name+r'\([^;{}]*\)\s*\{',src)
+    a=m.start();b=src.index('{',a)+1;depth=1
+    while depth:
+        if src[b]=='{':depth+=1
+        if src[b]=='}':depth-=1
+        b+=1
+    return src[a:b]
+prefix='''#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <assert.h>
+#include <stdio.h>
+#define ESP_OK 0
+#define ESP_ERR_INVALID_STATE 1
+#define LCD_DIRECT_EMOTE_STEP_MS 34U
+#define LCD_DIRECT_PRESENTATION_WAIT_POLL_MS 20U
+#define pdMS_TO_TICKS(x) ((x)/10)
+#define ESP_RETURN_ON_ERROR(expr,...) do {int e=(expr);if(e)return e;}while(0)
+typedef int esp_err_t;
+typedef uint32_t TickType_t;
+static int s_emote_handle, delays, stop_after, locks, unlocks;
+static bool stop;
+static int64_t now;
+static int64_t esp_timer_get_time(void){return now;}
+static bool lcd_direct_should_stop_idle(void){return stop;}
+static int gfx_emote_lock(int h){++locks;return 0;}
+static int gfx_emote_unlock(int h){++unlocks;return 0;}
+static int lcd_direct_emote_update_hud(bool force,bool *changed){*changed=false;return 0;}
+static int lcd_direct_emote_refresh(void){return 0;}
+static void vTaskDelay(TickType_t ticks){assert(ticks>0);now+=ticks*10000;++delays;if(stop_after && delays>=stop_after)stop=true;}
+'''
+test='''int main(void){
+    for(size_t i=0;i<12;++i){
+        assert(lcd_direct_emote_step_deadline(123000,i)==123000+(int64_t)(i+1)*34000);
+        now+=13000;
+        assert(lcd_direct_emote_wait_until(lcd_direct_emote_step_deadline(0,i))==0);
+        assert(now>=(int64_t)(i+1)*34000 && now<(int64_t)(i+1)*34000+10000);
+    }
+    int64_t anchored=now;
+    now=0;
+    for(size_t i=0;i<12;++i){now+=13000;assert(lcd_direct_emote_wait(21)==0);}
+    assert(anchored<418000 && now>=480000);
+    now=200000;int before=delays;
+    assert(lcd_direct_emote_wait_until(100000)==0 && now==200000 && delays==before);
+    stop=true;assert(lcd_direct_emote_wait_until(100000)==1);
+    stop=false;stop_after=delays+1;assert(lcd_direct_emote_wait_until(now+100000)==1);
+    assert(locks==unlocks);
+    printf("PASS: fixed deadlines, 10ms tick drift reduction (anchored=%lldus), late/stop handling and paired HUD locks\\n",(long long)anchored);
+}'''
+with tempfile.TemporaryDirectory(prefix='emote-timeline-') as tmp:
+    c=Path(tmp)/'test.c';exe=Path(tmp)/'test'
+    c.write_text(prefix+'\n'.join(extract(n) for n in ['lcd_direct_emote_wait_until','lcd_direct_emote_wait','lcd_direct_emote_step_deadline'])+'\n'+test)
+    subprocess.run(['clang','-std=c11','-fsanitize=address,undefined',str(c),'-o',str(exe)],check=True)
+    subprocess.run([str(exe)],check=True)