From: hgn <hgodden00@gmail.com>
Date: Tue, 9 Aug 2022 16:10:43 +0000 (+0100)
Subject: callbacks
X-Git-Url: https://harrygodden.com/git/?p=vg.git;a=commitdiff_plain;h=23ff40d5a3e3ca7d02f083ca3e1bd1db7a38f65b

callbacks
---

diff --git a/src/vg/vg_steam.h b/src/vg/vg_steam.h
index 604dcdf..d1e88be 100644
--- a/src/vg/vg_steam.h
+++ b/src/vg/vg_steam.h
@@ -470,8 +470,43 @@ steam_async *steam_new_async(void)
    return &steam_async_trackers[ steam_async_track_count ++ ];
 }
 
+/*
+ * Regular callbacks
+ * =============================================================================
+ */
+
+typedef struct steam_callback_handler steam_callback_handler;
+struct steam_callback_handler
+{
+   u32 callback_id;
+   void (*p_handler)( CallbackMsg_t *msg );
+}
+static steam_callback_handlers[64];
+static u32 steam_callback_handler_count;
+
+static int steam_register_callback( u32 id, 
+                                    void (*p_handler)( CallbackMsg_t *msg ) )
+{
+   if( steam_callback_handler_count == vg_list_size(steam_callback_handlers) )
+   {
+      vg_error( "Too many steam callback handlers registered (%u)\n", 
+                  steam_callback_handler_count );
+
+      return 0;
+   }
+   
+   steam_callback_handler *handler = &steam_callback_handlers[
+      steam_callback_handler_count ++ ];
+
+   handler->p_handler = p_handler;
+   handler->callback_id = id;
+   
+   return 1;
+}
+
 /*
  * Event loop
+ * =============================================================================
  */
 HSteamPipe SteamAPI_GetHSteamPipe(void);
 HSteamPipe SteamGameServer_GetHSteamPipe(void);
@@ -487,8 +522,7 @@ int	SteamAPI_ManualDispatch_GetAPICallResult( HSteamPipe hSteamPipe,
 
 void 	SteamAPI_ReleaseCurrentThreadMemory(void);
 
-static void steamworks_event_loop( HSteamPipe pipe, 
-                                   void(*callback_handler)(CallbackMsg_t *msg) )
+static void steamworks_event_loop( HSteamPipe pipe )
 {
 	SteamAPI_ManualDispatch_RunFrame( pipe );
 	CallbackMsg_t callback;
@@ -577,7 +611,15 @@ static void steamworks_event_loop( HSteamPipe pipe,
 			 * void *data = callback.m_pubParam;
           */
 
-         callback_handler(&callback);
+         for( int i=0; i<steam_callback_handler_count; i++ )
+         {
+            steam_callback_handler *handler = &steam_callback_handlers[i];
+            if( handler->callback_id == callback.m_iCallback )
+            {
+               handler->p_handler( &callback );
+               break;
+            }
+         }
 		}
 		
 		SteamAPI_ManualDispatch_FreeLastCallback( pipe );