main/netmisc.h

   1 /*
   2 THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
   3 SOFTWARE CORPORATION ("PARALLAX").  PARALLAX, IN DISTRIBUTING THE CODE TO
   4 END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
   5 ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
   6 IN USING, DISPLAYING,  AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
   7 SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
   8 FREE PURPOSES.  IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
   9 CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES.  THE END-USER UNDERSTANDS
  10 AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
  11 COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION.  ALL RIGHTS RESERVED.
  12 */
  13
  14
  15
  16 #ifndef _NETMISC_H
  17 #define _NETMISC_H
  18
  19 #include "multi.h"
  20 #include "network.h"
  21
  22 //Returns a checksum of a block of memory.
  23 extern ushort netmisc_calc_checksum( void * vptr, int len );
  24
  25 //Finds the difference between block1 and block2.  Fills in diff_buffer and returns the size of diff_buffer.
  26 extern int netmisc_find_diff( void *block1, void *block2, int block_size, void *diff_buffer );
  27
  28 //Applies diff_buffer to block1 to create a new block1.  Returns the final size of block1.
  29 extern int netmisc_apply_diff(void *block1, void *diff_buffer, int diff_size );
  30
  31 #ifdef WORDS_BIGENDIAN
  32
  33 // some mac only routines to deal with incorrectly aligned network structures
  34
  35 void receive_netplayer_info(ubyte *data, AllNetPlayers_info *info);
  36
  37 void receive_netplayers_packet(ubyte *data, AllNetPlayers_info *pinfo);
  38 void send_netplayers_packet(ubyte *server, ubyte *node);
  39 #define send_broadcast_netplayers_packet() \
  40         send_netplayers_packet(NULL, NULL)
  41
  42 void send_sequence_packet(sequence_packet seq, ubyte *server, ubyte *node, ubyte *net_address);
  43 #define send_internetwork_sequence_packet(seq, server, node) \
  44         send_sequence_packet(seq, server, node, NULL)
  45 #define send_broadcast_sequence_packet(seq) \
  46         send_sequence_packet(seq, NULL, NULL, NULL)
  47 void receive_sequence_packet(ubyte *data, sequence_packet *seq);
  48
  49 void send_netgame_packet(ubyte *server, ubyte *node, ubyte *net_address, int lite_flag);
  50 #define send_full_netgame_packet(server, node, net_address) \
  51         send_netgame_packet(server, node, net_address, 0)
  52 #define send_lite_netgame_packet(server, node, net_address) \
  53         send_netgame_packet(server, node, net_address, 1)
  54 #define send_internetwork_full_netgame_packet(server, node) \
  55         send_netgame_packet(server, node, NULL, 0)
  56 #define send_internetwork_lite_netgame_packet(server, node) \
  57         send_netgame_packet(server, node, NULL, 1)
  58 #define send_broadcast_full_netgame_packet() \
  59         send_netgame_packet(NULL, NULL, NULL, 0)
  60 #define send_broadcast_lite_netgame_packet() \
  61         send_netgame_packet(NULL, NULL, NULL, 1)
  62 void receive_netgame_packet(ubyte *data, netgame_info *netgame, int lite_flag);
  63 #define receive_full_netgame_packet(data, netgame) \
  64         receive_netgame_packet(data, netgame, 0)
  65 #define receive_lite_netgame_packet(data, netgame) \
  66         receive_netgame_packet(data, netgame, 1)
  67
  68 void swap_object(object *obj);
  69
  70 #else
  71
  72 #define receive_netplayers_packet(data, pinfo) \
  73         memcpy(pinfo, data, sizeof(AllNetPlayers_info))
  74 #define send_netplayers_packet(server, node) \
  75         ipx_send_internetwork_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info), server, node)
  76 #define send_broadcast_netplayers_packet() \
  77         ipx_send_broadcast_packet_data((ubyte *)&NetPlayers, sizeof(AllNetPlayers_info))
  78
  79 #define send_sequence_packet(seq, server, node, net_address) \
  80         ipx_send_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node, net_address)
  81 #define send_internetwork_sequence_packet(seq, server, node) \
  82         ipx_send_internetwork_packet_data((ubyte *)&seq, sizeof(sequence_packet), server, node)
  83 #define send_broadcast_sequence_packet(seq) \
  84         ipx_send_broadcast_packet_data((ubyte *)&seq, sizeof(sequence_packet))
  85
  86 #define send_full_netgame_packet(server, node, net_address) \
  87         ipx_send_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node, net_address)
  88 #define send_lite_netgame_packet(server, node, net_address) \
  89         ipx_send_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node, net_address)
  90 #define send_internetwork_full_netgame_packet(server, node) \
  91         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(netgame_info), server, node)
  92 #define send_internetwork_lite_netgame_packet(server, node) \
  93         ipx_send_internetwork_packet_data((ubyte *)&Netgame, sizeof(lite_info), server, node)
  94 #define send_broadcast_full_netgame_packet() \
  95         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(netgame_info))
  96 #define send_broadcast_lite_netgame_packet() \
  97         ipx_send_broadcast_packet_data((ubyte *)&Netgame, sizeof(lite_info))
  98 #define receive_full_netgame_packet(data, netgame) \
  99         memcpy((ubyte *)(netgame), data, sizeof(netgame_info))
 100 #define receive_lite_netgame_packet(data, netgame) \
 101         memcpy((ubyte *)(netgame), data, sizeof(lite_info))
 102
 103 #define swap_object(obj)
 104
 105 #endif
 106
 107 #endif