addon.h

   1 #ifndef ADDON_H
   2 #define ADDON_H
   3
   4 #include "skaterift.h"
   5 #include "vg/vg_steam_ugc.h"
   6 #include "addon_types.h"
   7 #include "vg/vg_mem_pool.h"
   8
   9 #include "world.h"
  10 #include "player.h"
  11
  12 typedef struct addon_reg addon_reg;
  13 typedef struct addon_cache_entry addon_cache_entry;
  14 typedef struct addon_alias addon_alias;
  15
  16 struct addon_alias {
  17    enum addon_type type;
  18    PublishedFileId_t workshop_id;
  19    char foldername[ ADDON_FOLDERNAME_MAX ];
  20 };
  21
  22 #define ADDON_REG_HIDDEN 0x1
  23 #define ADDON_REG_MTZERO 0x2
  24 #define ADDON_REG_CITY   0x4
  25
  26 struct {
  27    struct addon_reg{
  28       addon_alias alias;
  29       u32 foldername_hash;
  30       u8 metadata[512];  /* vg_msg buffer */
  31       u32 metadata_len;
  32       u32 flags;
  33
  34       u16 cache_id;
  35
  36       enum addon_state{
  37          k_addon_state_none,
  38          k_addon_state_indexed,
  39          k_addon_state_indexed_absent /* gone but not forgotten */
  40       }
  41       state;
  42    }
  43    *registry;
  44    u32 registry_count;
  45
  46    /* deffered: updates in main thread */
  47    u32 registry_type_counts[k_addon_type_max];
  48
  49    struct addon_cache{
  50       struct addon_cache_entry{
  51          u32 reg_index;
  52          addon_reg *reg_ptr;     /* TODO: only use reg_index? */
  53
  54          vg_pool_node poolnode;
  55
  56          enum addon_cache_state{
  57             k_addon_cache_state_none,
  58             k_addon_cache_state_loaded,
  59             k_addon_cache_state_load_request
  60          }
  61          state;
  62       }
  63       *allocs;
  64       vg_pool pool;
  65
  66       void *items;  /* the real data */
  67       size_t stride;
  68    }
  69    cache[k_addon_type_max];
  70    SDL_SpinLock sl_cache_using_resources;
  71 }
  72 static addon_system;
  73
  74 static void addon_system_init( void );
  75 static u32 addon_count( enum addon_type type, u32 ignoreflags );
  76 static addon_reg *get_addon_from_index( enum addon_type type, u32 index,
  77                                         u32 ignoreflags );
  78 static u32 get_index_from_addon( enum addon_type type, addon_reg *a );
  79 static int addon_get_content_folder( addon_reg *reg, vg_str *folder, int async);
  80
  81 /* scanning routines */
  82 static u32 addon_match( addon_alias *alias );
  83 static int addon_alias_eq( addon_alias *a, addon_alias *b );
  84 static void addon_alias_uid( addon_alias *alias, char buf[ADDON_UID_MAX] );
  85 static int addon_uid_to_alias( const char *uid, addon_alias *alias );
  86 static void invalidate_addon_alias( addon_alias *alias );
  87 static void addon_mount_content_folder( enum addon_type type,
  88                                            const char *base_folder,
  89                                            const char *content_ext );
  90 static void addon_mount_workshop_items(void);
  91 static void async_addon_reg_update( void *data, u32 size );
  92 static addon_reg *addon_mount_local_addon( const char *folder,
  93                                               enum addon_type type,
  94                                               const char *content_ext );
  95 static u16 addon_cache_fetch( enum addon_type type, u32 reg_index );
  96 static u16 addon_cache_alloc( enum addon_type type, u32 reg_index );
  97 static void *addon_cache_item( enum addon_type type, u16 id );
  98 static void *addon_cache_item_if_loaded( enum addon_type type, u16 id );
  99 static void async_addon_setstate( void *data, u32 size );
 100 static void addon_cache_load_loop(void);
 101 static u16 addon_cache_create_viewer( enum addon_type type, u16 reg_id);
 102
 103 static void addon_cache_watch( enum addon_type type, u16 cache_id );
 104 static void addon_cache_unwatch( enum addon_type type, u16 cache_id );
 105 static u16 addon_cache_create_viewer_from_uid( enum addon_type type,
 106                                                char uid[ADDON_UID_MAX] );
 107
 108 #endif /* ADDON_H */