[ViewVC] Diff of: cvs/deliantra/server/socket/image.C

Comparing deliantra/server/socket/image.C (file contents):
Revision 1.15 by root, Sat Dec 16 22:14:42 2006 UTC vs.
Revision 1.37 by root, Mon Mar 19 13:28:16 2007 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* CrossFire, A Multiplayer game
3		3	*
		4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4	Copyright (C) 2001 Mark Wedel	5	* Copyright (C) 2001 Mark Wedel
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (C) 1992 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20		21	*
21	The author can be reached via e-mail to <crossfire@schmorp.de>	22	* The author can be reached via e-mail to <crossfire@schmorp.de>
22	*/	23	*/
23		24
24	/** \file	25	/** \file
25	* Image related communication	26	* Image related communication
26	*	27	*
27	* \date 2003-12-02	28	* \date 2003-12-02
33	*/	34	*/
34		35
35	#include <global.h>	36	#include <global.h>
36	#include <sproto.h>	37	#include <sproto.h>
37		38
		39	#include "crc.h"
		40
38	#define MAX_FACE_SETS 20 /*< Maximum number of image sets the program will handle /	41	#define MAX_FACE_SETS 20 /*< Maximum number of image sets the program will handle /
39		42
40	/** Information about one image */	43	/** Information about one image */
41	typedef struct FaceInfo	44	typedef struct FaceInfo
42	{	45	{
…		…
83		86
84	for (num = 0; num < MAX_FACE_SETS; num++)	87	for (num = 0; num < MAX_FACE_SETS; num++)
85	{	88	{
86	if (facesets[num].prefix)	89	if (facesets[num].prefix)
87	{	90	{
88	for (q = 0; q < nrofpixmaps; q++)	91	for (q = 0; q < faces.size (); q++)
89	if (facesets[num].faces[q].data)	92	if (facesets[num].faces[q].data)
90	free (facesets[num].faces[q].data);	93	free (facesets[num].faces[q].data);
91		94
92	free (facesets[num].prefix);	95	free (facesets[num].prefix);
93	free (facesets[num].fullname);	96	free (facesets[num].fullname);
…		…
169	}	172	}
170		173
171	#define MAX_IMAGE_SIZE 10000	174	#define MAX_IMAGE_SIZE 10000
172		175
173	/**	176	/**
174	* Loads all the image types into memory.
175	*
176	* This way, we can easily send them to the client. We should really do something
177	* better than abort on any errors - on the other hand, these are all fatal
178	* to the server (can't work around them), but the abort just seems a bit
179	* messy (exit would probably be better.)
180	*
181	* Couple of notes: We assume that the faces are in a continous block.
182	* This works fine for now, but this could perhaps change in the future
183	*
184	* Function largely rewritten May 2000 to be more general purpose.
185	* The server itself does not care what the image data is - to the server,
186	* it is just data it needs to allocate. As such, the code is written
187	* to do such.
188	*/
189	void
190	read_client_images (void)
191	{
192	char filename[400];
193	char buf[HUGE_BUF];
194	char cp, cps[7];
195	FILE *infile;
196	int num, len, compressed, fileno, i, badline;
197
198	memset (facesets, 0, sizeof (facesets));
199	sprintf (filename, "%s/image_info", settings.datadir);
200	if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
201	{
202	LOG (llevError, "Unable to open %s\n", filename);
203	abort ();
204	}
205
206	while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
207	{
208	badline = 0;
209
210	if (buf[0] == '#')
211	continue;
212
213	if (!(cps[0] = strtok (buf, ":")))
214	badline = 1;
215
216	for (i = 1; i < 7; i++)
217	if (!(cps[i] = strtok (NULL, ":")))
218	badline = 1;
219
220	if (badline)
221	LOG (llevError, "Bad line in image_info file, ignoring line:\n %s", buf);
222	else
223	{
224	len = atoi (cps[0]);
225	if (len >= MAX_FACE_SETS)
226	{
227	LOG (llevError, "To high a setnum in image_info file: %d > %d\n", len, MAX_FACE_SETS);
228	abort ();
229	}
230	facesets[len].prefix = strdup (cps[1]);
231	facesets[len].fullname = strdup (cps[2]);
232	facesets[len].fallback = atoi (cps[3]);
233	facesets[len].size = strdup (cps[4]);
234	facesets[len].extension = strdup (cps[5]);
235	facesets[len].comment = strdup (cps[6]);
236	}
237	}
238
239	close_and_delete (infile, compressed);
240
241	for (i = 0; i < MAX_FACE_SETS; i++)
242	{
243	if (facesets[i].prefix)
244	check_faceset_fallback (i, MAX_FACE_SETS);
245	}
246
247	/* Loaded the faceset information - now need to load up the
248	* actual faces.
249	*/
250
251	for (fileno = 0; fileno < MAX_FACE_SETS; fileno++)
252	{
253	/* if prefix is not set, this is not used */
254	if (!facesets[fileno].prefix)
255	continue;
256
257	facesets[fileno].faces = (FaceInfo *) calloc (nrofpixmaps, sizeof (FaceInfo));
258
259	sprintf (filename, "%s/crossfire.%d", settings.datadir, fileno);
260	LOG (llevDebug, "Loading image file %s\n", filename);
261
262	if ((infile = open_and_uncompress (filename, 0, &compressed)) == NULL)
263	{
264	LOG (llevError, "Unable to open %s\n", filename);
265	abort ();
266	}
267
268	while (fgets (buf, HUGE_BUF - 1, infile) != NULL)
269	{
270	if (strncmp (buf, "IMAGE ", 6) != 0)
271	{
272	LOG (llevError, "read_client_images:Bad image line - not IMAGE, instead\n%s", buf);
273	abort ();
274	}
275
276	num = atoi (buf + 6);
277	if (num < 0 \|\| num >= nrofpixmaps)
278	{
279	LOG (llevError, "read_client_images: Image num %d not in 0..%d\n%s", num, nrofpixmaps, buf);
280	abort ();
281	}
282
283	/* Skip accross the number data */
284	for (cp = buf + 6; *cp != ' '; cp++);
285	len = atoi (cp);
286	if (len == 0 \|\| len > MAX_IMAGE_SIZE)
287	{
288	LOG (llevError, "read_client_images: length not valid: %d > %d \n%s", len, MAX_IMAGE_SIZE, buf);
289	abort ();
290	}
291
292	/* We don't actualy care about the name of the image that
293	* is embedded in the image file, so just ignore it.
294	*/
295	facesets[fileno].faces[num].datalen = len;
296	facesets[fileno].faces[num].data = (uint8 *) malloc (len);
297	if ((i = fread (facesets[fileno].faces[num].data, len, 1, infile)) != 1)
298	{
299	LOG (llevError, "read_client_images: Did not read desired amount of data, wanted %d, got %d\n%s", len, i, buf);
300	abort ();
301	}
302
303	facesets[fileno].faces[num].checksum = 0;
304	for (i = 0; i < len; i++)
305	{
306	ROTATE_RIGHT (facesets[fileno].faces[num].checksum);
307	facesets[fileno].faces[num].checksum += facesets[fileno].faces[num].data[i];
308	facesets[fileno].faces[num].checksum &= 0xffffffff;
309	}
310	}
311
312	close_and_delete (infile, compressed);
313	} /* For fileno < MAX_FACE_SETS */
314	}
315
316	/**
317	* Client tells us what type of faces it wants. Also sets	177	* Client tells us what type of faces it wants. Also sets
318	* the caching attribute.	178	* the caching attribute.
319	*	179	*
320	*/	180	*/
321	void	181	void
…		…
338	* caching images.	198	* caching images.
339	*/	199	*/
340	void	200	void
341	SendFaceCmd (char buf, int len, client ns)	201	SendFaceCmd (char buf, int len, client ns)
342	{	202	{
343	uint16 facenum = atoi (buf);	203	ns->send_image (atoi (buf));
		204	}
344		205
345	if (facenum != 0)	206	// how lame
346	esrv_send_face (ns, facenum, 1);	207	static void print_facename (packet &sl, const facedata &d)
		208	{
		209	for (int i = 0; i < CHKSUM_SIZE; ++i)
		210	sl.printf ("%02x", d.chksum [i]);
		211	}
		212
		213	// gcfclient uses the server-provided checksum for comparison, but always
		214	// writes a broken checksum to its cache file, so we have to provide
		215	// gcfclient with the same broken (and useless) checksum just to have it
		216	// cache the image despite its bugs.
		217	static uint32 gcfclient_checksum (const facedata *d)
		218	{
		219	uint32 csum = 0;
		220
		221	for (std::string::const_iterator i = d->data.begin ();
		222	i != d->data.end ();
		223	++i)
		224	{
		225	csum = rotate_right (csum);
		226	csum += (uint8 )&*i;
		227	}
		228
		229	return csum;
347	}	230	}
348		231
349	/**	232	/**
350	* Sends a face to a client if they are in pixmap mode	233	* Sends a face to a client if they are in pixmap mode
351	* nothing gets sent in bitmap mode.	234	* nothing gets sent in bitmap mode.
…		…
353	* this is needed for the askface, in which we really do want to send the	236	* this is needed for the askface, in which we really do want to send the
354	* face (and askface is the only place that should be setting it). Otherwise,	237	* face (and askface is the only place that should be setting it). Otherwise,
355	* we look at the facecache, and if set, send the image name.	238	* we look at the facecache, and if set, send the image name.
356	*/	239	*/
357	void	240	void
358	esrv_send_face (client *ns, short face_num, int nocache)	241	client::send_face (faceidx facenum)
359	{	242	{
360	char fallback;	243	// never send face 0. ever. it does not exist.
		244	if (!facenum)
		245	return;
361		246
362	if (face_num <= 0 \|\| face_num >= nrofpixmaps)	247	const facedata *d = face_data (facenum, faceset);
		248
		249	if (!d)
363	{	250	{
364	LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num);	251	LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum);
365	return;	252	return;
366	}	253	}
367		254
		255	if (faces_sent[facenum])
		256	return;
		257
		258	faces_sent[facenum] = true;
		259
		260	if (!facecache)
		261	{
		262	send_drawinfo (
		263	"\n"
		264	"\n"
		265	"***\n"
		266	"*** WARNING:\n"
		267	"*** Your client does not support face/image caching,\n"
		268	"*** or it has been disabled. Face caching is mandatory\n"
		269	"*** so please enable it or use a newer client.\n"
		270	"***\n"
		271	"*** To enable it, look at your client preferences and reconnect:\n"
		272	"***\n"
		273	"*** CFPlus: all known versions automatically enable the facecache.\n"
		274	"*** cfclient: use the -cache commandline option.\n"
		275	"*** cfclient: map will not redraw automatically (bug).\n"
		276	"*** gcfclient: use -cache commandline option, or enable\n"
		277	"*** gcfclient: Client=>Configure=>Map & Image=>Cache Images.\n"
		278	"*** jcrossclient: your client is broken, use CFPlus or gcfclient.\n"
		279	"***\n"
		280	"***\n",
		281	NDI_RED
		282	);
		283	//return;
		284	return send_image (facenum);
		285	}
		286
368	packet sl;	287	packet sl;
369	fallback = get_face_fallback (ns->faceset, face_num);
370		288
371	if (facesets[fallback].faces[face_num].data == NULL)	289	if (force_face0)
		290	sl << "face " << uint16 (facenum);
		291	else if (image2)
		292	sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
		293	else
		294	sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0);
		295
		296	// how lame
		297	print_facename (sl, *d);
		298	send_packet (sl);
		299
		300	faceinfo *f = face_info (facenum);
		301	if (f->smooth && EMI_smooth)
		302	{
		303	send_face (f->smooth);
		304
		305	packet sl ("smooth");
		306
		307	sl << uint16 (facenum)
		308	<< uint16 (f->smooth);
		309
		310	send_packet (sl);
372	{	311	}
373	LOG (llevError, "esrv_send_face: faces[%d].data == NULL\n", face_num);	312	}
		313
		314	void
		315	client::send_image (faceidx facenum)
		316	{
		317	// never send face 0. ever. it does not exist.
		318	if (!facenum)
		319	return;
		320
		321	const facedata *d = face_data (facenum, faceset);
		322
		323	if (!d)
		324	{
		325	LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum);
374	return;	326	return;
375	}	327	}
376		328
377	if (ns->facecache && !nocache)	329	faces_sent[facenum] = true;
378	{
379	sl << (ns->image2 ? "face2 " : "face1 ")
380	<< uint16 (face_num);
381		330
382	if (ns->image2)	331	if (force_image_newmap)
383	sl << uint8 (fallback);	332	force_newmap = true;
384		333
385	sl << uint32 (facesets[fallback].faces[face_num].checksum)	334	packet sl;
386	<< new_faces[face_num].name;
387		335
388	ns->send_packet (sl);
389	}
390	else
391	{
392	sl << (ns->image2 ? "image2 " : "image ")	336	sl << (image2 ? "image2 " : "image ")
393	<< uint32 (face_num);	337	<< uint32 (facenum);
394		338
395	if (ns->image2)	339	if (image2)
396	sl << uint8 (fallback);	340	sl << uint8 (0);
397		341
398	sl << uint32 (facesets[fallback].faces[face_num].datalen)	342	sl << uint32 (d->data.size ())
399	<< data (facesets[fallback].faces[face_num].data, facesets[fallback].faces[face_num].datalen);	343	<< data (d->data.data (), d->data.size ());
400		344
401	ns->send_packet (sl);	345	send_packet (sl);
		346	}
		347
		348	// send all faces of this object to the client
		349	// this uses more bandwidth initially, but makes
		350	// animations look much smoother, and every client
		351	// is supposed to do client-side caching anyways.
		352	void
		353	client::send_faces (object *ob)
		354	{
		355	send_face (ob->face);
		356
		357	if (ob->animation_id)
402	}	358	{
		359	animation &anim = animations [ob->animation_id];
403		360
404	ns->faces_sent[face_num] \|= NS_FACESENT_FACE;	361	for (int i = 0; i < anim.num_animations; i++)
		362	send_face (anim.faces [i]);
		363	}
		364	}
		365
		366	/**
		367	* Need to send an animation sequence to the client.
		368	* We will send appropriate face commands to the client if we haven't
		369	* sent them the face yet (this can become quite costly in terms of
		370	* how much we are sending - on the other hand, this should only happen
		371	* when the player logs in and picks stuff up.
		372	*/
		373	void
		374	client::send_animation (short anim_num)
		375	{
		376	/* Do some checking on the anim_num we got. Note that the animations
		377	* are added in contigous order, so if the number is in the valid
		378	* range, it must be a valid animation.
		379	*/
		380	if (anim_num < 0 \|\| anim_num > num_animations)
		381	{
		382	LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num);
		383	return;
		384	}
		385
		386	packet sl ("anim");
		387
		388	sl << uint16 (anim_num)
		389	<< uint16 (0); /* flags - not used right now */
		390
		391	/* Build up the list of faces. Also, send any information (ie, the
		392	* the face itself) down to the client.
		393	*/
		394	for (int i = 0; i < animations[anim_num].num_animations; i++)
		395	{
		396	send_face (animations[anim_num].faces[i]);
		397	sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */
		398	}
		399
		400	send_packet (sl);
		401
		402	anims_sent[anim_num] = 1;
405	}	403	}
406		404
407	/**	405	/**
408	* Sends the number of images, checksum of the face file,	406	* Sends the number of images, checksum of the face file,
409	* and the image_info file information. See the doc/Developers/protocol	407	* and the image_info file information. See the doc/Developers/protocol
410	* if you want further detail.	408	* if you want further detail.
411	*/	409	*/
412
413	void	410	void
414	send_image_info (client ns, char params)	411	send_image_info (client ns, char params)
415	{	412	{
416	packet sl;	413	packet sl;
417		414
418	sl.printf ("replyinfo image_info\n%d\n%d\n", nrofpixmaps - 1, bmaps_checksum);	415	//TODO: second parameter is a checksum, but it makes no sense in this current framework
		416	sl.printf ("replyinfo image_info\n%d\n%u\n", MAX_FACES, 0);
419		417
420	for (int i = 0; i < MAX_FACE_SETS; i++)	418	sl << "0:base:standard:0:32x32:none:The old 32x32 faceset.\n";
421	if (facesets[i].prefix)
422	sl.printf ("%d:%s:%s:%d:%s:%s:%s", i,
423	facesets[i].prefix, facesets[i].fullname , facesets[i].fallback,
424	facesets[i].size , facesets[i].extension, facesets[i].comment);
425		419
426	ns->send_packet (sl);	420	ns->send_packet (sl);
427	}	421	}
428		422
429	/**	423	/**
…		…
437	*/	431	*/
438	void	432	void
439	send_image_sums (client ns, char params)	433	send_image_sums (client ns, char params)
440	{	434	{
441	int start, stop;	435	int start, stop;
442	char *cp, buf[MAX_BUF];	436	char *cp;
443		437
444	packet sl;	438	packet sl;
445		439
446	start = atoi (params);	440	start = atoi (params);
447	for (cp = params; *cp != '\0'; cp++)	441	for (cp = params; *cp != '\0'; cp++)
448	if (*cp == ' ')	442	if (*cp == ' ')
449	break;	443	break;
450		444
451	stop = atoi (cp);	445	stop = atoi (cp);
452	if (stop < start \|\| *cp == '\0' \|\| (stop - start) > 1000 \|\| stop >= nrofpixmaps)	446	if (stop < start \|\| *cp == '\0' \|\| (stop - start) > 1000 \|\| stop >= MAX_FACES)
453	{	447	{
454	sl.printf ("replyinfo image_sums %d %d", start, stop);	448	sl.printf ("replyinfo image_sums %d %d", start, stop);
455	ns->send_packet (sl);	449	ns->send_packet (sl);
456	sl.reset ();	450	sl.reset ();
457	return;	451	return;
458	}	452	}
459		453
460	sl.printf ("replyinfo image_sums %d %d ", start, stop);	454	sl.printf ("replyinfo image_sums %d %d ", start, stop);
461		455
462	for (int i = start; i <= stop; i++)	456	for (int i = start; i <= stop && i < faces.size (); i++)
463	{	457	{
464	ns->faces_sent[i] \|= NS_FACESENT_FACE;	458	ns->faces_sent[i] = true;
465		459
466	int qq = get_face_fallback (ns->faceset, i);	460	const facedata *d = face_data (i, ns->faceset);
		461
		462	if (sl.room () < 2 + 4 + 1 + d->data.size () + 1)
		463	break;
467		464
468	sl << uint16 (i)	465	sl << uint16 (i)
469	<< uint32 (facesets[qq].faces[i].checksum)	466	<< uint32 (0) // checksum
470	<< uint8 (qq)	467	<< uint8 (ns->faceset);
471	<< data8 (&new_faces[i].name, new_faces[i].name.length () + 1);	468
		469	print_facename (sl, *d); sl << uint8 (0);
472	}	470	}
473		471
474	/* It would make more sense to catch this pre-emptively in the code above.	472	/* It would make more sense to catch this pre-emptively in the code above.
475	* however, if this really happens, we probably just want to cut down the	473	* however, if this really happens, we probably just want to cut down the
476	* size to less than 1000, since that is what we claim the protocol would	474	* size to less than 1000, since that is what we claim the protocol would
477	* support.	475	* support.
478	*/	476	*/
		477	//TODO: taken care of above, should simply abort or make sure the above code is correct
479	if (sl.length () >= MAXSOCKBUF)	478	if (sl.length () >= MAXSOCKBUF)
480	{	479	{
481	LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF);	480	LOG (llevError, "send_image_send: buffer overrun, %d > %d\n", sl.length (), MAXSOCKBUF);
482	abort ();	481	abort ();
483	}	482	}

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Comparing deliantra/server/socket/image.C (file contents): Revision 1.15 by root, Sat Dec 16 22:14:42 2006 UTC vs. Revision 1.37 by root, Mon Mar 19 13:28:16 2007 UTC

Diff Legend

Comparing deliantra/server/socket/image.C (file contents):
Revision 1.15 by root, Sat Dec 16 22:14:42 2006 UTC vs.
Revision 1.37 by root, Mon Mar 19 13:28:16 2007 UTC