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 struct {
  23    struct addon_reg{
  24       addon_alias alias;
  25       u32 foldername_hash;
  26       u8 metadata[512];  /* vg_msg buffer */
  27       u32 metadata_len;
  28
  29       u16 cache_id;
  30
  31       enum addon_state{
  32          k_addon_state_none,
  33          k_addon_state_indexed,
  34          k_addon_state_indexed_absent /* gone but not forgotten */
  35       }
  36       state;
  37    }
  38    *registry;
  39    u32 registry_count;
  40
  41    /* deffered: updates in main thread */
  42    u32 registry_type_counts[k_addon_type_max];
  43
  44    struct addon_cache{
  45       struct addon_cache_entry{
  46          u32 reg_index;
  47          addon_reg *reg_ptr;     /* TODO: only use reg_index? */
  48
  49          vg_pool_node poolnode;
  50
  51          enum addon_cache_state{
  52             k_addon_cache_state_none,
  53             k_addon_cache_state_loaded,
  54             k_addon_cache_state_load_request
  55          }
  56          state;
  57       }
  58       *allocs;
  59       vg_pool pool;
  60
  61       void *items;  /* the real data */
  62       size_t stride;
  63    }
  64    cache[k_addon_type_max];
  65    SDL_SpinLock sl_cache_using_resources;
  66 }
  67 static addon_system;
  68
  69 static void addon_system_init( void );
  70 static u32 addon_count( enum addon_type type );
  71 static addon_reg *get_addon_from_index( enum addon_type type, u32 index );
  72 static u32 get_index_from_addon( enum addon_type type, addon_reg *a );
  73 static int addon_get_content_folder( addon_reg *reg, vg_str *folder );
  74
  75 /* scanning routines */
  76 static u32 addon_match( addon_alias *alias );
  77 static int addon_alias_eq( addon_alias *a, addon_alias *b );
  78 static void addon_alias_uid( addon_alias *alias, char buf[ADDON_UID_MAX] );
  79 static int addon_uid_to_alias( char uid[ADDON_UID_MAX], addon_alias *alias );
  80 static void invalidate_addon_alias( addon_alias *alias );
  81 static void addon_mount_content_folder( enum addon_type type,
  82                                            const char *base_folder,
  83                                            const char *content_ext );
  84 static void addon_mount_workshop_items(void);
  85 static void async_addon_reg_update( void *data, u32 size );
  86 static addon_reg *addon_mount_local_addon( const char *folder,
  87                                               enum addon_type type,
  88                                               const char *content_ext );
  89 static u16 addon_cache_fetch( enum addon_type type, u32 reg_index );
  90 static u16 addon_cache_alloc( enum addon_type type, u32 reg_index );
  91 static void *addon_cache_item( enum addon_type type, u16 id );
  92 static void *addon_cache_item_if_loaded( enum addon_type type, u16 id );
  93 static void async_addon_setstate( void *data, u32 size );
  94 static void addon_cache_load_loop(void);
  95 static u16 addon_cache_create_viewer( enum addon_type type, u16 reg_id);
  96
  97 static void addon_cache_watch( enum addon_type type, u16 cache_id );
  98 static void addon_cache_unwatch( enum addon_type type, u16 cache_id );
  99 static u16 addon_cache_create_viewer_from_uid( enum addon_type type,
 100                                                char uid[ADDON_UID_MAX] );
 101
 102 #endif /* ADDON_H */