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cl_parse.c
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/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
$Id: cl_parse.c,v 1.135 2007-10-28 19:56:44 qqshka Exp $
*/
#include "quakedef.h"
#include "gl_model.h"
#include "cdaudio.h"
#include "ignore.h"
#include "fchecks.h"
#include "config_manager.h"
#include "utils.h"
#include "localtime.h"
#include "sbar.h"
#include "textencoding.h"
#include "vx_stuff.h"
#include "gl_model.h"
#include "teamplay.h"
#include "tp_triggers.h"
#include "pmove.h"
#include "stats_grid.h"
#include "qsound.h"
#include "menu.h"
#include "keys.h"
#include "hud.h"
#include "hud_common.h"
#include "mvd_utils.h"
#include "input.h"
#include "qtv.h"
#include "r_brushmodel_sky.h"
#include "central.h"
int CL_LoginImageId(const char* name);
#ifdef MVD_PEXT1_SERVERSIDEWEAPON
void IN_ServerSideWeaponSelectionResponse(const char* s);
#endif
#ifdef MVD_PEXT1_HIDDEN_MESSAGES
static void CL_ParseAntilagPosition(int size);
static void CL_ParseDemoInfo(int size);
static void CL_ParseDemoWeapon(int size, qbool server_side);
static void CL_ParseDamageDone(int size);
static void CL_ParseDemoWeaponInstruction(int size);
static void CL_ParseUserCommand(int size);
#endif // MVD_PEXT1_HIDDEN_MESSAGES
void R_TranslatePlayerSkin (int playernum);
char *svc_strings[] = {
"svc_bad",
"svc_nop",
"svc_disconnect",
"svc_updatestat",
"svc_version", // [long] server version
"svc_setview", // [short] entity number
"svc_sound", // <see code>
"svc_time", // [float] server time
"svc_print", // [string] null terminated string
"svc_stufftext", // [string] stuffed into client's console buffer
// the string should be \n terminated
"svc_setangle", // [vec3] set the view angle to this absolute value
"svc_serverdata", // [long] version ...
"svc_lightstyle", // [byte] [string]
"svc_updatename", // [byte] [string]
"svc_updatefrags", // [byte] [short]
"svc_clientdata", // <shortbits + data>
"svc_stopsound", // <see code>
"svc_updatecolors", // [byte] [byte]
"svc_particle", // [vec3] <variable>
"svc_damage", // [byte] impact [byte] blood [vec3] from
"svc_spawnstatic",
"OBSOLETE svc_spawnbinary",
"svc_spawnbaseline",
"svc_temp_entity", // <variable>
"svc_setpause",
"svc_signonnum",
"svc_centerprint",
"svc_killedmonster",
"svc_foundsecret",
"svc_spawnstaticsound",
"svc_intermission",
"svc_finale",
"svc_cdtrack",
"svc_sellscreen",
"svc_smallkick",
"svc_bigkick",
"svc_updateping",
"svc_updateentertime",
"svc_updatestatlong",
"svc_muzzleflash",
"svc_updateuserinfo",
"svc_download",
"svc_playerinfo",
"svc_nails",
"svc_choke",
"svc_modellist",
"svc_soundlist",
"svc_packetentities",
"svc_deltapacketentities",
"svc_maxspeed",
"svc_entgravity",
"svc_setinfo",
"svc_serverinfo",
"svc_updatepl",
"svc_nails2",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL",
"NEW PROTOCOL"
};
const int num_svc_strings = sizeof(svc_strings)/sizeof(svc_strings[0]);
//=========================================================
// Cl_Messages, just some simple network statistics/profiling
//=========================================================
#define NUMMSG 256 // for svc_xxx used one byte, so its in range...
typedef struct cl_message_s
{
int msgs;
int size;
int svc; // well, its helpful after qsort
} cl_message_t;
static cl_message_t cl_messages[NUMMSG];
static void CL_Messages_f(void);
static void CL_InitialiseDemoMessageIfRequired(void);
void Cl_Messages_Init(void)
{
int i;
memset(cl_messages, 0, sizeof(cl_messages));
for (i = 0; i < NUMMSG; i++)
cl_messages[i].svc = i; // well, its helpful after qsort
Cmd_AddCommand ("cl_messages", CL_Messages_f);
}
static int CL_Messages_qsort(const void *a, const void *b)
{
cl_message_t *msg1 = (cl_message_t*)a;
cl_message_t *msg2 = (cl_message_t*)b;
if ( msg1->size < msg2->size )
return -1;
if ( msg1->size > msg2->size )
return 1;
return 0;
}
static void CL_Messages_f(void)
{
cl_message_t messages[NUMMSG]; // local copy of cl_messages[] for qsorting
int i, svc, total;
char *svc_name;
memcpy(messages, cl_messages, sizeof(messages)); // copy it
qsort(messages, NUMMSG, sizeof(messages[0]), CL_Messages_qsort); // qsort it
Com_Printf("Received msgs:\n");
for (i = 0, total = 0; i < NUMMSG; i++)
{
if (messages[i].msgs < 1)
continue;
svc = messages[i].svc;
if (svc < 0 || svc >= NUMMSG) {
Sys_Error("CL_Messages_f: svc < 0 || svc >= NUMMSG");
return;
}
svc_name = ( svc < num_svc_strings ? svc_strings[svc] : "unknown" );
Com_Printf("%2d:%s: %d msgs: %0.2fk\n", svc, svc_name, messages[i].msgs, (float)(messages[i].size)/1024);
total += messages[i].size;
}
Com_Printf("Total size: %d\n", total);
}
//=============================================================================
packet_info_t network_stats[NETWORK_STATS_SIZE];
int packet_latency[NET_TIMINGS];
int CL_CalcNet (void)
{
int a, i, j, lost, packetcount;
frame_t *frame;
static cvar_t * netgraph_inframes = NULL;
extern hud_t * hud_netgraph;
static int last_calculated_outgoing;
static int last_calculated_incoming;
static int last_lost;
if (last_calculated_incoming == cls.netchan.incoming_sequence &&
last_calculated_outgoing == cls.netchan.outgoing_sequence)
return last_lost;
last_calculated_outgoing = cls.netchan.outgoing_sequence;
last_calculated_incoming = cls.netchan.incoming_sequence;
if (netgraph_inframes == NULL)
netgraph_inframes = HUD_FindVar(hud_netgraph, "inframes");
for (i = cls.netchan.outgoing_sequence-UPDATE_BACKUP + 1; i <= cls.netchan.outgoing_sequence; i++)
{
frame = &cl.frames[i & UPDATE_MASK];
j = i & NETWORK_STATS_MASK;
if (frame->receivedtime == -1)
{
packet_latency[i & NET_TIMINGSMASK] = 9999; // dropped
network_stats[j].status = packet_dropped;
}
else if (frame->receivedtime == -2)
{
packet_latency[i & NET_TIMINGSMASK] = 10000; // choked
network_stats[j].status = packet_choked;
}
else if (frame->receivedtime == -3)
{
packet_latency[i & NET_TIMINGSMASK] = -1; // choked by c2spps
network_stats[j].status = packet_netlimit;
}
else if (frame->invalid)
{
packet_latency[i & NET_TIMINGSMASK] = 9998; // invalid delta
network_stats[j].status = packet_delta;
}
else
{
double l;
if (netgraph_inframes->value) // [frames]
l = 2*(frame->seq_when_received-i);
else // [miliseconds]
l = min((frame->receivedtime - frame->senttime)*1000, 1000);
packet_latency[i&NET_TIMINGSMASK] = (int)l;
network_stats[j].status = packet_ok;
}
}
lost = packetcount = 0;
for (a = 0; a < NET_TIMINGS; a++)
{
// fix for packetloss on high ping
if (a < UPDATE_BACKUP && (cls.realtime -
cl.frames[(cls.netchan.outgoing_sequence-a)&UPDATE_MASK].senttime) < cls.latency)
continue;
i = (cls.netchan.outgoing_sequence-a) & NET_TIMINGSMASK;
if (packet_latency[i] == 9999)
lost++;
if (packet_latency[i] != -1) // don't count packets choked by c2spps
packetcount++;
}
last_lost = packetcount ? lost * 100 / packetcount : 100;
return last_lost;
}
// More network statistics
int CL_CalcNetStatistics(
/* in */
float period, // period of time
packet_info_t *samples, // statistics table
int num_samples, // table size
/* out */
net_stat_result_t *res)
{
int i, p, q; // calc fom p to q
float ping_min, ping_max, ping_avg, ping_dev, ping_sum, ping_dev_sum;
float f_min, f_max, f_avg, f_dev, f_sum, f_dev_sum;
int lost_lost, lost_rate, lost_delta, lost_netlimit;
int size_sent, size_received;
int samples_received, samples_sent, samples_delta;
if (cls.netchan.outgoing_sequence - cls.netchan.incoming_sequence > NETWORK_STATS_SIZE/2)
return (res->samples = 0);
// find boundaries
q = cls.netchan.incoming_sequence - 1;
p = q - 1;
while (p > cls.netchan.outgoing_sequence - NETWORK_STATS_SIZE + 1 &&
samples[q&NETWORK_STATS_MASK].senttime - samples[p&NETWORK_STATS_MASK].senttime < period)
{
p--;
}
// init values
samples_sent = 0;
samples_received = 0;
samples_delta = 0; // packets with delta compression applied
ping_sum = 0;
ping_min = 99999999;
ping_max = -99999999;
ping_dev_sum = 0;
f_sum = 0;
f_min = 99999999;
f_max = -99999999;
f_dev_sum = 0;
lost_lost = 0;
lost_rate = 0;
lost_netlimit = 0;
lost_delta = 0;
size_sent = 0;
size_received = 0;
for (i=p; i < q; i++)
{
int a = i & NETWORK_STATS_MASK;
if (samples[a].status == packet_netlimit)
{
// not even sent
lost_netlimit++;
continue;
}
// packet was sent
samples_sent++;
size_sent += samples[a].sentsize;
switch (samples[a].status)
{
case packet_delta:
lost_delta++;
samples_delta++;
break;
case packet_choked:
lost_rate++;
break;
case packet_dropped:
lost_lost++;
break;
case packet_ok:
// packet received
{
float ping;
int frames;
samples_received++;
frames = samples[a].seq_diff;
ping = 1000*(samples[a].receivedtime - samples[a].senttime);
if (ping < ping_min) ping_min = ping;
if (ping > ping_max) ping_max = ping;
if (frames < f_min) f_min = frames;
if (frames > f_max) f_max = frames;
ping_sum += ping;
f_sum += frames;
size_received += samples[a].receivedsize;
if (samples[a].delta)
samples_delta++;
}
default:
break;
}
// end of loop
}
if (samples_sent <= 0 || samples_received <= 0)
return (res->samples = 0);
ping_avg = ping_sum / samples_received;
f_avg = f_sum / samples_received;
// loop again to calc standard deviation
for (i=p; i < q; i++)
{
int a = i & NETWORK_STATS_MASK;
if (samples[a].status == packet_ok)
{
float ping;
int frames;
frames = samples[a].seq_diff;
ping = 1000*(samples[a].receivedtime - samples[a].senttime);
ping_dev_sum += (ping - ping_avg) * (ping - ping_avg);
f_dev_sum += (frames - f_avg) * (frames - f_avg);
}
}
ping_dev = sqrt(ping_dev_sum / samples_received);
f_dev = sqrt(f_dev_sum / samples_received);
// fill-in result struct
res->ping_min = ping_min;
res->ping_max = ping_max;
res->ping_avg = ping_avg;
res->ping_dev = ping_dev;
res->ping_f_min = f_min;
res->ping_f_max = f_max;
res->ping_f_avg = f_avg;
res->ping_f_dev = f_dev;
res->lost_netlimit = lost_netlimit * 100.0 / (q-p);
res->lost_lost = lost_lost * 100.0 / samples_sent;
res->lost_rate = lost_rate * 100.0 / samples_sent;
res->bandwidth_in = lost_delta * 100.0 / samples_sent;
res->size_out = size_sent / (float)samples_sent;
res->size_in = size_received / (float)samples_received;
res->bandwidth_out = size_sent / period;
res->bandwidth_in = size_received / period;
res->delta = (samples_delta > 0) ? 1 : 0;
res->samples = q-p;
return res->samples;
}
//=============================================================================
// Returns true if the file exists, otherwise it attempts to start a download from the server.
qbool CL_CheckOrDownloadFile(char *filename)
{
vfsfile_t *f;
char *tmp;
if (strstr(filename, "..") || !strcmp(filename, "") || filename[0] == '/' || strchr(filename, '\\') || strchr(filename, ':') || strstr(filename, "//")) {
Com_Printf("Warning: Invalid characters in filename \"%s\"\n", filename);
return true;
}
if ((tmp = strrchr(filename, '.')) && (!strcasecmp(tmp, ".dll") || !strcasecmp(tmp, ".so"))) {
Com_Printf("Warning: Non-allowed file \"%s\" skipped\n", filename);
return true;
}
f = FS_OpenVFS(filename, "rb", FS_ANY);
if (f) {
VFS_CLOSE(f);
return true;
}
// Can't download when playback, except qtv which support download
if (cls.demoplayback)
{
if (cls.mvdplayback == QTV_PLAYBACK)
{
if (!(cls.qtv_ezquake_ext & QTV_EZQUAKE_EXT_DOWNLOAD))
{
Com_Printf ("Unable to download %s, this QTV does't support download\n", filename);
return true;
}
}
else
return true;
}
if (cls.state < ca_connected)
{
Com_DPrintf ("Unable to download %s, not connected\n", filename);
return true;
}
snprintf (cls.downloadname, sizeof(cls.downloadname), "%s/%s", cls.gamedir, filename);
Com_Printf ("Downloading %s...\n", filename);
// download to a temp name, and only rename
// to the real name when done, so if interrupted
// a runt file wont be left
cls.downloadmethod = DL_QW; // by default its DL_QW, if server support DL_QWCHUNKED it will be changed.
cls.downloadstarttime = Sys_DoubleTime();
COM_StripExtension (cls.downloadname, cls.downloadtempname, sizeof(cls.downloadtempname));
strlcat (cls.downloadtempname, ".tmp", sizeof(cls.downloadtempname));
if (cls.mvdplayback == QTV_PLAYBACK)
{
QTV_Cmd_Printf(QTV_EZQUAKE_EXT_DOWNLOAD, "download \"%s\"", filename);
}
else
{
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
MSG_WriteString (&cls.netchan.message, va("download \"%s\"", filename));
}
cls.downloadnumber++;
return false;
}
void CL_FindModelNumbers (void)
{
int i, j;
for (i = 0; i < cl_num_modelindices; i++)
cl_modelindices[i] = -1;
for (i = 0; i < MAX_MODELS; i++)
{
for (j = 0; j < cl_num_modelindices; j++)
{
if (!strcmp(cl_modelnames[j], cl.model_name[i]))
{
cl_modelindices[j] = i;
break;
}
}
}
}
void CL_ProxyEnter (void)
{
if (!strcmp(cl.levelname, "Qizmo menu") || // qizmo detection
strstr(cl.serverinfo, "*QTV")) // fteqtv detection
{
// If we are connected only to the proxy frontend
// we presume that the menu is on.
M_EnterProxyMenu();
}
else if (key_dest == key_menu && m_state == m_proxy)
{
// This happens when we connect to a server using a proxy.
M_LeaveMenus();
}
// If we used console to connect to a server via proxy,
// cancel return to the proxy menu, because it's not there.
if (key_dest_beforecon == key_menu)
key_dest_beforecon = key_game;
}
static void CL_TransmitModelCrc (int index, char *info_key)
{
if (index != -1)
{
struct model_s *model = cl.model_precache[index];
unsigned short crc = model->crc;
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
MSG_WriteString (&cls.netchan.message, va("setinfo %s %d", info_key, (int) crc));
Info_SetValueForKey(cls.userinfo, info_key, va("%d", (int) crc), MAX_INFO_STRING);
}
}
void CL_Prespawn (void)
{
cl.worldmodel = cl.model_precache[1];
if (!cl.worldmodel)
Host_Error ("Model_NextDownload: NULL worldmodel");
CL_FindModelNumbers ();
R_NewMap (false);
TP_NewMap();
MT_NewMap();
Stats_NewMap();
CL_ProxyEnter();
MVD_Stats_Cleanup();
// Reset the status grid.
StatsGrid_Remove(&stats_grid);
StatsGrid_ResetHoldItems();
HUD_NewMap();
Hunk_Check(); // make sure nothing is hurt
CL_TransmitModelCrc (cl_modelindices[mi_player], "pmodel");
CL_TransmitModelCrc (cl_modelindices[mi_eyes], "emodel");
#if 0
//TEI: loading entitys from map, at clientside,
// will be usefull to locate more eyecandy and cameras
if (cl.worldmodel->entities)
{
CL_PR_LoadProgs();
CL_ED_LoadFromFile (cl.worldmodel->entities);
}
#endif
// done with modellist, request first of static signon messages, in case of qtv it different
if (cls.mvdplayback == QTV_PLAYBACK)
{
QTV_Cmd_Printf(QTV_EZQUAKE_EXT_DOWNLOAD, "qtvspawn %i", cl.servercount);
}
else
{
MSG_WriteByte (&cls.netchan.message, clc_stringcmd);
MSG_WriteString (&cls.netchan.message, va("prespawn %i 0 %i", cl.servercount, cl.map_checksum2));
}
}
/*
=================
VWepModel_NextDownload
=================
*/
void CL_ParseVWepPrecache (char *str);
void VWepModel_NextDownload (void)
{
int i;
extern cvar_t cl_novweps;
if (((!(cl.z_ext & Z_EXT_VWEP) || !cl.vw_model_name[0][0]) && !cls.mvdplayback)
|| cl_novweps.value)
{
// no vwep support, go straight to prespawn
CL_Prespawn ();
return;
}
if (cls.mvdplayback && cls.downloadnumber == 0)
{
CL_ParseVWepPrecache ("//vwep vwplayer w_axe w_shot w_shot2 w_nail w_nail2 w_rock w_rock2 w_light");
}
if (cls.downloadnumber == 0)
{
if (!com_serveractive || developer.value)
Com_DPrintf ("Checking vwep models...\n");
//cls.downloadnumber = 0;
}
cls.downloadtype = dl_vwep_model;
for ( ; cls.downloadnumber < MAX_VWEP_MODELS; cls.downloadnumber++)
{
if (!cl.vw_model_name[cls.downloadnumber][0] ||
cl.vw_model_name[cls.downloadnumber][0] == '-')
continue;
if (!CL_CheckOrDownloadFile(cl.vw_model_name[cls.downloadnumber]))
return; // started a download
}
for (i = 0; i < MAX_VWEP_MODELS; i++)
{
if (!cl.vw_model_name[i][0])
continue;
if (strcmp(cl.vw_model_name[i], "-"))
cl.vw_model_precache[i] = Mod_ForName (cl.vw_model_name[i], false);
if (!cl.vw_model_precache[i])
{
// never mind
// Com_Printf ("Warning: model %s could not be found\n", cl.vw_model_name[i]);
}
}
if (!strcmp(cl.vw_model_name[0], "-") || cl.vw_model_precache[0])
cl.vwep_enabled = true;
else
{
// if the vwep player model is required but not present,
// don't enable vwep support
}
// all done
CL_Prespawn ();
}
void Model_NextDownload (void)
{
int i;
char *s;
char mapname[MAX_QPATH];
if (cls.downloadnumber == 0)
{
if (!com_serveractive || developer.value)
Com_DPrintf ("Checking models...\n");
cls.downloadnumber = 1;
}
cls.downloadtype = dl_model;
for ( ; cl.model_name[cls.downloadnumber][0]; cls.downloadnumber++)
{
s = cl.model_name[cls.downloadnumber];
if (s[0] == '*')
continue; // inline brush model
if (!CL_CheckOrDownloadFile(s))
return; // started a download
}
cl.clipmodels[1] = CM_LoadMap (cl.model_name[1], true, NULL, &cl.map_checksum2);
COM_StripExtension (COM_SkipPath(cl.model_name[1]), mapname, sizeof(mapname));
cl.map_checksum2 = Com_TranslateMapChecksum (mapname, cl.map_checksum2);
R_NewMapPreLoad();
for (i = 1; i < MAX_MODELS; i++) {
if (!cl.model_name[i][0]) {
break;
}
cl.model_precache[i] = Mod_ForName(cl.model_name[i], false);
if (!cl.model_precache[i]) {
Com_Printf("\n&cf22Couldn't load model:&r %s\n", cl.model_name[i]);
Host_EndGame();
return;
}
if (cl.model_name[i][0] == '*') {
cl.clipmodels[i] = CM_InlineModel(cl.model_name[i]);
}
}
// Done with normal models, request vwep models if necessary
cls.downloadtype = dl_vwep_model;
cls.downloadnumber = 0;
VWepModel_NextDownload ();
}
void Sound_NextDownload (void)
{
char *s;
int i;
if (cls.downloadnumber == 0)
{
if (!com_serveractive || developer.value)
Com_DPrintf ("Checking sounds...\n");
cls.downloadnumber = 1;
}
cls.downloadtype = dl_sound;
for ( ; cl.sound_name[cls.downloadnumber][0]; cls.downloadnumber++)
{
s = cl.sound_name[cls.downloadnumber];
if (!CL_CheckOrDownloadFile(va("sound/%s",s)))
return; // started a download
}
for (i = 1; i < MAX_SOUNDS; i++)
{
if (!cl.sound_name[i][0])
break;
cl.sound_precache[i] = S_PrecacheSound (cl.sound_name[i]);
}
// Done with sound downloads, go for models
cls.downloadnumber = 0;
cls.downloadtype = dl_model;
Model_NextDownload ();
}
#ifdef FTE_PEXT_CHUNKEDDOWNLOADS
//
// FTE's chunked download
//
extern void CL_RequestNextDownload (void);
#define MAXBLOCKS 1024 // Must be power of 2
#define DLBLOCKSIZE 1024
int chunked_download_number = 0; // Never reset, bumped up.
int downloadsize;
int receivedbytes;
int recievedblock[MAXBLOCKS];
int firstblock;
int blockcycle;
int CL_RequestADownloadChunk(void)
{
int i;
int b;
if (cls.downloadmethod != DL_QWCHUNKS) // Paranoia!
Host_Error("download not initiated\n");
for (i = 0; i < MAXBLOCKS; i++)
{
blockcycle++;
b = ((blockcycle) & (MAXBLOCKS-1)) + firstblock;
if (!recievedblock[b&(MAXBLOCKS-1)]) // Don't ask for ones we've already got.
{
if (b >= (downloadsize+DLBLOCKSIZE-1)/DLBLOCKSIZE) // Don't ask for blocks that are over the size of the file.
continue;
return b;
}
}
return -1;
}
void CL_SendChunkDownloadReq(void)
{
extern cvar_t cl_chunksperframe;
int i, j, chunks;
chunks = bound(1, cl_chunksperframe.integer, 5);
for (j = 0; j < chunks; j++)
{
if (cls.downloadmethod != DL_QWCHUNKS)
return;
i = CL_RequestADownloadChunk();
// i < 0 mean client complete download, let server know
// qqshka: download percent optional, server does't really require it, that my extension, hope does't fuck up something
if (i < 0)
{
if (strstr(Info_ValueForKey(cl.serverinfo, "*version"), "MVDSV"))
CL_SendClientCommand(true, "nextdl %d %d %d", i, cls.downloadpercent, chunked_download_number);
else
CL_SendClientCommand(true, "stopdownload");
cls.downloadpercent = 100;
CL_FinishDownload(); // this also request next dl
}
else
{
CL_SendClientCommand(false, "nextdl %d %d %d", i, cls.downloadpercent, chunked_download_number);
}
}
}
void CL_ParseDownload (void);
void CL_Parse_OOB_ChunkedDownload(void)
{
int j;
for ( j = 0; j < sizeof("\\chunk")-1; j++ )
MSG_ReadByte ();
//
// qqshka: well, this is evil.
// In case of when one file completed download and next started
// here may be some packets which travel via network,
// so we got packets from different file, that mean we may assemble wrong data,
// need somehow discard such packets, i have no idea how, so adding at least this check.
//
if (chunked_download_number != MSG_ReadLong ())
{
Com_DPrintf("Dropping OOB chunked message, out of sequence\n");
return;
}
if (MSG_ReadByte() != svc_download)
{
Com_DPrintf("Something wrong in OOB message and chunked download\n");
return;
}
CL_ParseDownload ();
}
void CL_ParseChunkedDownload(void)
{
char *svname;
int totalsize;
int chunknum;
char data[DLBLOCKSIZE];
double tm;
chunknum = MSG_ReadLong();
if (chunknum < 0)
{
totalsize = MSG_ReadLong();
svname = MSG_ReadString();
if (cls.download)
{
// Ensure FILE is closed
if (totalsize != -3) // -3 = dl stopped, so this known issue, do not warn
Com_Printf ("cls.download shouldn't have been set\n");
fclose (cls.download);
cls.download = NULL;
cls.downloadpercent = 0;
}
if (cls.demoplayback)
return;
if (totalsize < 0)
{
switch (totalsize)
{
case -3: Com_DPrintf("Server cancel downloading file %s\n", svname); break;
case -2: Com_Printf("Server permissions deny downloading file %s\n", svname); break;
default: Com_Printf("Couldn't find file %s on the server\n", svname); break;
}
CL_FinishDownload(); // this also request next dl
return;
}
if (cls.downloadmethod == DL_QWCHUNKS)
Host_Error("Received second download - \"%s\"\n", svname);
// FIXME: damn, fixme!!!!!
// if (strcasecmp(cls.downloadname, svname))
// Host_Error("Server sent the wrong download - \"%s\" instead of \"%s\"\n", svname, cls.downloadname);
// Start the new download
FS_CreatePath (cls.downloadtempname);
if ( !(cls.download = fopen (cls.downloadtempname, "wb")) )
{
Com_Printf ("Failed to open %s\n", cls.downloadtempname);
CL_FinishDownload(); // This also requests next dl.
return;
}
cls.downloadmethod = DL_QWCHUNKS;
cls.downloadpercent = 0;
chunked_download_number++;
downloadsize = totalsize;
firstblock = 0;
receivedbytes = 0;
blockcycle = -1; //so it requests 0 first. :)
memset(recievedblock, 0, sizeof(recievedblock));
return;
}
MSG_ReadData(data, DLBLOCKSIZE);
if (!cls.download)
{
return;
}
if (cls.downloadmethod != DL_QWCHUNKS)
Host_Error("cls.downloadmethod != DL_QWCHUNKS\n");
if (cls.demoplayback)
{
// Err, yeah, when playing demos we don't actually pay any attention to this.
return;
}
if (chunknum < firstblock)
{
return;
}