Pre-cache all icons from /user/appmeta/ when gamelist is generated

main.c

@@ -2929,6 +2929,22 @@ static void fn(struct mg_connection *c, int ev, void *ev_data) {
                         for(int i=0;i<4;i++) if(!isalpha((unsigned char)tmp[i])){ok=0;break;}
                         for(int i=4;i<9;i++) if(!isdigit((unsigned char)tmp[i])){ok=0;break;}
                         if(ok) strncpy(tid,tmp,sizeof(tid)-1);}
+                    /* proactively cache icon from /user/appmeta/ if not already cached */
+                    if(tid[0]){
+                        char ic2[256]; snprintf(ic2,sizeof(ic2),"/data/SMPlusGui/icon-cache/%s.png",tid);
+                        struct stat ics; if(stat(ic2,&ics)!=0){
+                            char isrc[256]; snprintf(isrc,sizeof(isrc),"/user/appmeta/%s/icon0.png",tid);
+                            struct stat iss; if(stat(isrc,&iss)==0){
+                                FILE *sf=fopen(isrc,"rb");
+                                if(sf){fseek(sf,0,SEEK_END);long il=ftell(sf);fseek(sf,0,SEEK_SET);
+                                    if(il>0&&il<=524288){char *ib=malloc(il);
+                                        if(ib&&(fread(ib,1,il,sf)==(size_t)il)){
+                                            mkdir("/data/SMPlusGui",0777);mkdir("/data/SMPlusGui/icon-cache",0777);
+                                            FILE *cf=fopen(ic2,"wb");if(cf){fwrite(ib,1,il,cf);fclose(cf);}
+                                        }free(ib);}fclose(sf);}
+                            }
+                        }
+                    }
                     /* look up title_name from games JSON if available */
                     char dname[128]={0};
                     if(tid[0]&&gam_json){