git.sesse.net Git - ccbs/blob - bigscreen/ccbs_bigscreen.cpp

   1 #include <cstdio>
   2 #include <cstring>
   3 #include <iconv.h>
   4 #include <unistd.h>
   5 #include <pqxx/pqxx>
   6 #include <tinyptc.h>
   7 #include "flagtrigger.h"
   8 #include "widestring.h"
   9 #include "fetch_current_tournament.h"
  10 #include "fonts.h"
  11
  12 Tournament active_tournament;
  13 unsigned char framebuf[800 * 600 * 4];
  14
  15 void init(pqxx::connection &conn)
  16 {
  17         conn.perform(FetchCurrentTournament(&active_tournament));
  18
  19         if (active_tournament.id == -1) {
  20                 std::fprintf(stderr, "No active tournament\n");
  21         } else {
  22                 std::fprintf(stderr, "Current tournament is %d (name: '%s')\n",
  23                         active_tournament.id, active_tournament.name.c_str());
  24         }
  25 }
  26
  27 void main_loop(pqxx::connection &conn)
  28 {
  29         if (active_tournament.id == -1) {
  30                 // No active tournament, sleep a second or so and exit
  31                 sleep(1);
  32                 return;
  33         }
  34
  35         memset(framebuf, 0, 800*600*4);
  36
  37         pqxx::work t(conn, "trx");
  38
  39         // fetch all songs
  40         pqxx::result res( t.exec("SELECT * FROM songs WHERE title LIKE 'M%'") );
  41         unsigned y = 0;
  42         for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
  43                 my_draw_text(i["title"].as(widestring()), framebuf, 0, y, 1, 255, 255, 255);
  44                 y += 20;
  45 //              std::fprintf(stderr, "%s\n", i["title"].c_str());
  46         }
  47         t.commit();
  48
  49         ptc_update(framebuf);
  50         sleep(1);
  51 }
  52
  53 int main(int argc, char **argv)
  54 {
  55         ptc_open("CCBS bigscreen", 800, 600);
  56
  57         try {
  58                 init_freetype();
  59                 pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_");
  60                 FlagTrigger tournament_changed(conn, "active_tournament");
  61                 FlagTrigger rounds_changed(conn, "active_groups");
  62
  63                 // when active_tournament or active_rounds is changed, we destroy everything and start from scratch
  64                 // (at least currently)
  65                 for ( ;; ) {
  66                         tournament_changed.reset_flag();
  67                         rounds_changed.reset_flag();
  68                         init(conn);
  69                         do {
  70                                 main_loop(conn);
  71                                 conn.get_notifs();
  72                         } while (!tournament_changed.get_flag() && !rounds_changed.get_flag());
  73                         std::fprintf(stderr, "active_tournament or active_groups changed, resetting...\n");
  74                 }
  75         } catch (const std::exception &e) {
  76                 std::fprintf(stderr, "Exception: %s\n", e.what());
  77                 exit(1);
  78         }
  79
  80         return 0;
  81 }