Add resilient handover, live LED layout refresh and TV calibration profiles

native/layout_refresh.h

@@ -0,0 +1,34 @@
+#ifndef HYPERDRM_LAYOUT_REFRESH_H
+#define HYPERDRM_LAYOUT_REFRESH_H
+#define LAYOUT_REFRESH_MS 5000
+static ReceiverProbe layout_probe={.fd=-1};
+static uint64_t next_layout_check,last_layout_check;
+static unsigned layout_updates,layout_probe_generation;
+static char layout_error[128];
+static void layout_refresh_reset(uint64_t due){
+ probe_close(&layout_probe);layout_probe.stage=TEST_IDLE;next_layout_check=due;
+}
+static bool layout_mapping_changed(const LedBlend *next,unsigned count){
+ if(count!=led_count || !led_blends)return true;
+ for(unsigned i=0;i<count;i++)if(next[i].a!=led_blends[i].a || next[i].b!=led_blends[i].b || next[i].weight!=led_blends[i].weight)return true;
+ return false;
+}
+static void layout_refresh_tick(PlaybackJson *json,uint64_t now,bool running){
+ if(!running){layout_refresh_reset(now+LAYOUT_REFRESH_MS);return;}
+ probe_tick(&layout_probe,json,now);
+ if(layout_probe.stage==TEST_DONE){
+  if(layout_probe_generation==calibration_generation){
+   if(layout_mapping_changed(layout_probe.mapping,layout_probe.leds)){
+    free(led_blends);led_blends=layout_probe.mapping;layout_probe.mapping=NULL;led_count=layout_probe.leds;layout_updates++;
+   }
+   last_layout_check=now;layout_error[0]=0;
+  }else next_layout_check=now;
+  probe_close(&layout_probe);layout_probe.stage=TEST_IDLE;
+ }else if(layout_probe.stage==TEST_FAILED){
+  snprintf(layout_error,sizeof(layout_error),"%s",layout_probe.error);layout_probe.stage=TEST_IDLE;
+ }
+ if(!probe_busy(&layout_probe) && now>=next_layout_check){
+  layout_probe_generation=calibration_generation;probe_begin(&layout_probe,&target,now);next_layout_check=now+LAYOUT_REFRESH_MS;
+ }
+}
+#endif