addon.h

   1 #ifndef ADDON_H
   2 #define ADDON_H
   3
   4 #define ADDON_FOLDERNAME_MAX 64
   5
   6 /* total count that we have knowledge of */
   7 #define ADDON_MOUNTED_MAX 128
   8 #define ADDON_UID_MAX 76
   9
  10 #ifndef ADDON_DEFINE_ONLY
  11
  12 #include "skaterift.h"
  13 #include "vg/vg_steam_ugc.h"
  14 #include "addon_types.h"
  15 #include "vg/vg_mem_pool.h"
  16
  17 #include "world.h"
  18 #include "player.h"
  19
  20 typedef struct addon_reg addon_reg;
  21 typedef struct addon_cache_entry addon_cache_entry;
  22 typedef struct addon_alias addon_alias;
  23
  24 struct addon_alias {
  25    enum addon_type type;
  26    PublishedFileId_t workshop_id;
  27    char foldername[ ADDON_FOLDERNAME_MAX ];
  28 };
  29
  30 struct {
  31    struct addon_reg{
  32       addon_alias alias;
  33       u32 foldername_hash;
  34       u8 metadata[512];  /* vg_msg buffer */
  35       u32 metadata_len;
  36
  37       u16 cache_id;
  38
  39       enum addon_state{
  40          k_addon_state_none,
  41          k_addon_state_indexed,
  42          k_addon_state_indexed_absent /* gone but not forgotten */
  43       }
  44       state;
  45    }
  46    *registry;
  47    u32 registry_count;
  48
  49    /* deffered: updates in main thread */
  50    u32 registry_type_counts[k_addon_type_max];
  51
  52    struct addon_cache{
  53       struct addon_cache_entry{
  54          u32 reg_index;
  55          addon_reg *reg_ptr;     /* TODO: only use reg_index? */
  56
  57          vg_pool_node poolnode;
  58
  59          enum addon_cache_state{
  60             k_addon_cache_state_none,
  61             k_addon_cache_state_loaded,
  62             k_addon_cache_state_load_request
  63          }
  64          state;
  65       }
  66       *allocs;
  67       vg_pool pool;
  68
  69       void *items;  /* the real data */
  70       size_t stride;
  71    }
  72    cache[k_addon_type_max];
  73    SDL_SpinLock sl_cache_using_resources;
  74 }
  75 static addon_system;
  76
  77 static void addon_system_init( void );
  78 static u32 addon_count( enum addon_type type );
  79 static addon_reg *get_addon_from_index( enum addon_type type, u32 index );
  80 static u32 get_index_from_addon( enum addon_type type, addon_reg *a );
  81 static int addon_get_content_folder( addon_reg *reg, vg_str *folder );
  82
  83 /* scanning routines */
  84 static u32 addon_match( addon_alias *alias );
  85 static void addon_alias_uid( addon_alias *alias, char buf[ADDON_UID_MAX] );
  86 static void addon_mount_content_folder( enum addon_type type,
  87                                            const char *base_folder,
  88                                            const char *content_ext );
  89 static void addon_mount_workshop_items(void);
  90 static void async_addon_reg_update( void *data, u32 size );
  91 static addon_reg *addon_mount_local_addon( const char *folder,
  92                                               enum addon_type type,
  93                                               const char *content_ext );
  94 static u16 addon_cache_fetch( enum addon_type type, u32 reg_index );
  95 static u16 addon_cache_alloc( enum addon_type type, u32 reg_index );
  96 static void *addon_cache_item( enum addon_type type, u16 id );
  97 static void *addon_cache_item_if_loaded( enum addon_type type, u16 id );
  98 static void async_addon_setstate( void *data, u32 size );
  99 static void addon_cache_load_loop(void);
 100 static u16 addon_cache_create_viewer( enum addon_type type, u16 reg_id);
 101
 102 static void addon_cache_watch( enum addon_type type, u16 cache_id );
 103 static void addon_cache_unwatch( enum addon_type type, u16 cache_id );
 104 static u16 addon_cache_create_viewer_from_uid( enum addon_type type,
 105                                                char uid[ADDON_UID_MAX] );
 106
 107 #endif
 108 #endif /* ADDON_H */