server/common/image.C

/*
 * CrossFire, A Multiplayer game
 * 
 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team
 * Copyright (C) 1992 Frank Tore Johansen
 * 
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * The maintainer of this code can be reached at <crossfire@schmorp.de>
 */


#include <global.h>
#include <stdio.h>

facetile *new_faces;

/* bmappair and xbm are used when looking for the image id numbers
 * of a face by name.  xbm is sorted alphabetically so that bsearch
 * can be used to quickly find the entry for a name.  the number is
 * then an index into the new_faces array.
 * This data is redundant with new_face information - the difference
 * is that this data gets sorted, and that doesn't necessarily happen
 * with the new_face data - when accessing new_face[some number], 
 * that some number corresponds to the face at that number - for
 * xbm, it may not.  At current time, these do in fact match because
 * the bmaps file is created in a sorted order.
 */

struct bmappair
{
  char *name;
  unsigned int number;
};

static struct bmappair *xbm = NULL;

facetile *blank_face, *dark_faces[3], *empty_face, *smooth_face;

/* nroffiles is the actual number of bitmaps defined.
 * nrofpixmaps is the number of bitmaps loaded.  With
 * the automatic generation of the bmaps file, this is now equal
 * to nroffiles.
 *
 * The xbm array (which contains name and number information, and
 * is then sorted) contains nroffiles entries.  the xbm_names
 * array (which is used for converting the numeric face to
 * a name) contains nrofpixmaps entries.
 */
static int nroffiles = 0;
int nrofpixmaps = 0;

/**
 * id is the face to smooth, smooth is the 16x2 face used to smooth id.
 */
struct smoothing : zero_initialised
{
  uint16 id;
  uint16 smooth;
};

/**
 * Contains all defined smoothing entries. smooth is an array of nrofsmooth
 * entries. It is sorted by smooth[].id.
 */
static struct smoothing *smooth = NULL;
int nrofsmooth = 0;

/* the only thing this table is used for now is to
 * translate the colorname in the magicmap field of the
 * face into a numeric index that is then sent to the
 * client for magic map commands.  The order of this table
 * must match that of the NDI colors in include/newclient.h.
 */
static const char *const colorname[] = {
  "black",                      /* 0  */
  "white",                      /* 1  */
  "blue",                       /* 2  */
  "red",                        /* 3  */
  "orange",                     /* 4  */
  "light_blue",                 /* 5  */
  "dark_orange",                /* 6  */
  "green",                      /* 7  */
  "light_green",                /* 8  */
  "grey",                       /* 9  */
  "brown",                      /* 10 */
  "yellow",                     /* 11 */
  "khaki"                       /* 12 */
};

static int
compar (const struct bmappair *a, const struct bmappair *b)
{
  return strcmp (a->name, b->name);
}

static int
compar_smooth (const struct smoothing *a, const struct smoothing *b)
{
  if (a->id < b->id)
    return -1;
  if (b->id < a->id)
    return 1;
  return 0;
}

/*
 * Returns the matching color in the coloralias if found,
 * 0 otherwise.  Note that 0 will actually be black, so there is no
 * way the calling function can tell if an error occurred or not
 */
static uint8
find_color (const char *name)
{
  uint8 i;

  for (i = 0; i < sizeof (colorname) / sizeof (*colorname); i++)
    if (!strcmp (name, colorname[i]))
      return i;
  LOG (llevError, "Unknown color: %s\n", name);
  return 0;
}

/* This reads the lib/faces file, getting color and visibility information.
 * it is called by ReadBmapNames.
 */
static void
ReadFaceData (void)
{
  char buf[MAX_BUF], *cp;
  facetile *on_face = NULL;
  FILE *fp;

  sprintf (buf, "%s/faces", settings.datadir);
  LOG (llevDebug, "Reading faces from %s...\n", buf);
  if ((fp = fopen (buf, "r")) == NULL)
    {
      LOG (llevError, "Cannot open faces file %s: %s\n", buf, strerror (errno));
      exit (-1);
    }
  while (fgets (buf, MAX_BUF, fp) != NULL)
    {
      if (*buf == '#')
        continue;
      if (!strncmp (buf, "end", 3))
        {
          on_face = NULL;
        }
      else if (!strncmp (buf, "face", 4))
        {
          int tmp;

          cp = buf + 5;
          cp[strlen (cp) - 1] = '\0';   /* remove newline */

          if ((tmp = FindFace (cp, -1)) == -1)
            {
              LOG (llevError, "Could not find face %s\n", cp);
              continue;
            }
          on_face = &new_faces[tmp];
          on_face->visibility = 0;
        }
      else if (on_face == NULL)
        {
          LOG (llevError, "Got line with no face set: %s\n", buf);
        }
      else if (!strncmp (buf, "color_fg", 8))
        {
          cp = buf + 9;
          cp[strlen (cp) - 1] = '\0';
          if (on_face->magicmap == 255)
            on_face->magicmap = find_color (cp);
        }
      else if (!strncmp (buf, "color_bg", 8))
        {
          /* ignore it */
        }
      else if (!strncmp (buf, "visibility", 10))
        {
          on_face->visibility = atoi (buf + 11);
        }
      else if (!strncmp (buf, "magicmap", 8))
        {
          cp = buf + 9;
          cp[strlen (cp) - 1] = '\0';
          on_face->magicmap = find_color (cp);
        }
      else if (!strncmp (buf, "is_floor", 8))
        {
          int value = atoi (buf + 9);

          if (value)
            on_face->magicmap |= FACE_FLOOR;
        }
      else
        LOG (llevDebug, "Got unknown line in faces file: %s\n", buf);
    }

  LOG (llevDebug, "done\n");
  fclose (fp);
}

/* This reads the bmaps file to get all the bitmap names and
 * stuff.  It only needs to be done once, because it is player
 * independent (ie, what display the person is on will not make a
 * difference.)
 */
void
ReadBmapNames (void)
{
  char buf[MAX_BUF], *p, *q;
  FILE *fp;
  int value, nrofbmaps = 0, i;
  size_t l;

  bmaps_checksum = 0;
  sprintf (buf, "%s/bmaps", settings.datadir);
  LOG (llevDebug, "Reading bmaps from %s...\n", buf);
  if ((fp = fopen (buf, "r")) == NULL)
    {
      LOG (llevError, "Cannot open bmaps file %s: %s\n", buf, strerror (errno));
      exit (-1);
    }

  /* First count how many bitmaps we have, so we can allocate correctly */
  while (fgets (buf, MAX_BUF, fp) != NULL)
    if (buf[0] != '#' && buf[0] != '\n')
      nrofbmaps++;
  rewind (fp);

  xbm = new bmappair[nrofbmaps];
  memset (xbm, 0, sizeof (struct bmappair) * nrofbmaps);

  while (nroffiles < nrofbmaps && fgets (buf, MAX_BUF, fp) != NULL)
    {
      if (*buf == '#')
        continue;

      p = (*buf == '\\') ? (buf + 1) : buf;
      if (!(p = strtok (p, " \t")) || !(q = strtok (NULL, " \t\n")))
        {
          LOG (llevDebug, "Warning, syntax error: %s\n", buf);
          continue;
        }
      value = atoi (p);
      xbm[nroffiles].name = strdup (q);

      /* We need to calculate the checksum of the bmaps file
       * name->number mapping to send to the client.  This does not
       * need to match what sum or other utility may come up with -
       * as long as we get the same results on the same real file
       * data, it does the job as it lets the client know if
       * the file has the same data or not.
       */
      ROTATE_RIGHT (bmaps_checksum);
      bmaps_checksum += value & 0xff;
      bmaps_checksum &= 0xffffffff;

      ROTATE_RIGHT (bmaps_checksum);
      bmaps_checksum += (value >> 8) & 0xff;
      bmaps_checksum &= 0xffffffff;
      for (l = 0; l < strlen (q); l++)
        {
          ROTATE_RIGHT (bmaps_checksum);
          bmaps_checksum += q[l];
          bmaps_checksum &= 0xffffffff;
        }

      xbm[nroffiles].number = value;
      nroffiles++;
      if (value >= nrofpixmaps)
        nrofpixmaps = value + 1;
    }
  fclose (fp);

  LOG (llevDebug, "done (got %d/%d/%d)\n", nrofpixmaps, nrofbmaps, nroffiles);

  new_faces = new facetile[nrofpixmaps];

  for (i = 0; i < nrofpixmaps; i++)
    {
      new_faces[i].name = "";
      new_faces[i].number = i;
      new_faces[i].visibility = 0;
      new_faces[i].magicmap = 255;
    }

  for (i = 0; i < nroffiles; i++)
    new_faces[xbm[i].number].name = xbm[i].name;

  // non-pod datatype, likely not allowed
  qsort (xbm, nroffiles, sizeof (struct bmappair), (int (*)(const void *, const void *)) compar);

  ReadFaceData ();

  for (i = 0; i < nrofpixmaps; i++)
    {
      if (new_faces[i].magicmap == 255)
        {
#if 0                           /* Useful for initial debugging, not needed now */
          LOG (llevDebug, "Face %s still had default magicmap, resetting to black\n", new_faces[i].name);
#endif
          new_faces[i].magicmap = 0;
        }
    }
  /* Actually forcefully setting the colors here probably should not
   * be done - it could easily create confusion.
   */
  blank_face = &new_faces[FindFace (BLANK_FACE_NAME, 0)];
  blank_face->magicmap = find_color ("khaki") | FACE_FLOOR;

  empty_face = &new_faces[FindFace (EMPTY_FACE_NAME, 0)];

  dark_faces[0] = &new_faces[FindFace (DARK_FACE1_NAME, 0)];
  dark_faces[1] = &new_faces[FindFace (DARK_FACE2_NAME, 0)];
  dark_faces[2] = &new_faces[FindFace (DARK_FACE3_NAME, 0)];

  smooth_face = &new_faces[FindFace (SMOOTH_FACE_NAME, 0)];
}

/* This returns an the face number of face 'name'.  Number is constant
 * during an invocation, but not necessarily between versions (this
 * is because the faces are arranged in alphabetical order, so
 * if a face is removed or added, all faces after that will now
 * have a different number.
 *
 * the parameter error determines behaviour.  If a face is
 * not found, then error is returned.  This can be useful if
 * you want some default face used, or can be set to negative
 * so that it will be known that the face could not be found
 * (needed in client, so that it will know to request that image
 * from the server)
 */
int
FindFace (const char *name, int error)
{
  struct bmappair *bp, tmp;
  char *p;

  if (!name)
    return error;

  if ((p = strchr (name, '\n')))
    *p = '\0';

  tmp.name = (char *) name;
  bp = (struct bmappair *) bsearch (&tmp, xbm, nroffiles, sizeof (struct bmappair), (int (*)(const void *, const void *)) compar);

  return bp ? bp->number : error;
}

/* Reads the smooth file to know how to smooth datas.
 * the smooth file if made of 2 elements lines.
 * lines starting with # are comment
 * the first element of line is face to smooth
 * the next element is the 16x2 faces picture
 * used for smoothing
 */
int
ReadSmooth (void)
{
  char buf[MAX_BUF], *p, *q;
  FILE *fp;
  int smoothcount = 0;

  bmaps_checksum = 0;
  sprintf (buf, "%s/smooth", settings.datadir);
  LOG (llevDebug, "Reading smooth from %s...\n", buf);
  if ((fp = fopen (buf, "r")) == NULL)
    {
      LOG (llevError, "Cannot open smooth file %s: %s\n", strerror (errno));
      exit (-1);
    }

  /* First count how many smooth we have, so we can allocate correctly */
  while (fgets (buf, MAX_BUF, fp) != NULL)
    if (buf[0] != '#' && buf[0] != '\n')
      smoothcount++;
  rewind (fp);

  smooth = new smoothing[smoothcount];

  while (nrofsmooth < smoothcount && fgets (buf, MAX_BUF, fp) != NULL)
    {
      if (*buf == '#')
        continue;
      p = strchr (buf, ' ');
      if (!p)
        continue;
      *p = '\0';
      q = buf;
      smooth[nrofsmooth].id = FindFace (q, 0);
      q = p + 1;
      smooth[nrofsmooth].smooth = FindFace (q, 0);
      nrofsmooth++;
    }
  fclose (fp);

  LOG (llevDebug, "done (got %d smooth entries)\n", nrofsmooth);
  qsort (smooth, nrofsmooth, sizeof (struct smoothing), (int (*)(const void *, const void *)) compar_smooth);
  return nrofsmooth;
}

/**
 * Find the smooth face for a given face.
 *
 * @param face the face to find the smoothing face for
 *
 * @param smoothed return value: set to smooth face
 *
 * @return 1=smooth face found, 0=no smooth face found
 */
int
FindSmooth (uint16 face, uint16 * smoothed)
{
  struct smoothing *bp, tmp;

  tmp.id = face;
  bp = (struct smoothing *) bsearch
    (&tmp, smooth, nrofsmooth, sizeof (struct smoothing), (int (*)(const void *, const void *)) compar_smooth);
  (*smoothed) = 0;
  if (bp)
    (*smoothed) = bp->smooth;
  return bp ? 1 : 0;
}

/**
 * Deallocates memory allocated by ReadBmapNames() and ReadSmooth().
 */
void
free_all_images (void)
{
  int i;

  for (i = 0; i < nroffiles; i++)
    free (xbm[i].name);

  delete[]xbm;
  delete[]new_faces;
  delete[]smooth;
}
Revision:	1.15
Committed:	Mon Feb 5 02:17:28 2007 UTC (17 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.14:	+2 -3 lines
Log Message:	sneaky bug i introduced there
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.13	* CrossFire, A Multiplayer game
3	pippijn	1.12	*
4			* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
5			* Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (C) 1992 Frank Tore Johansen
7			*
8			* This program is free software; you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation; either version 2 of the License, or
11			* (at your option) any later version.
12			*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU General Public License for more details.
17			*
18			* You should have received a copy of the GNU General Public License
19			* along with this program; if not, write to the Free Software
20			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21			*
22			* The maintainer of this code can be reached at <crossfire@schmorp.de>
23			*/
24	elmex	1.1
25
26			#include <global.h>
27			#include <stdio.h>
28
29	root	1.13	facetile *new_faces;
30	elmex	1.1
31			/* bmappair and xbm are used when looking for the image id numbers
32			* of a face by name. xbm is sorted alphabetically so that bsearch
33			* can be used to quickly find the entry for a name. the number is
34			* then an index into the new_faces array.
35			* This data is redundant with new_face information - the difference
36			* is that this data gets sorted, and that doesn't necessarily happen
37			* with the new_face data - when accessing new_face[some number],
38			* that some number corresponds to the face at that number - for
39			* xbm, it may not. At current time, these do in fact match because
40			* the bmaps file is created in a sorted order.
41			*/
42
43	root	1.4	struct bmappair
44			{
45			char *name;
46			unsigned int number;
47	elmex	1.1	};
48
49	root	1.6	static struct bmappair *xbm = NULL;
50	elmex	1.1
51	root	1.13	facetile blank_face, dark_faces[3], empty_face, smooth_face;
52	elmex	1.1
53			/* nroffiles is the actual number of bitmaps defined.
54			* nrofpixmaps is the number of bitmaps loaded. With
55			* the automatic generation of the bmaps file, this is now equal
56			* to nroffiles.
57			*
58			* The xbm array (which contains name and number information, and
59			* is then sorted) contains nroffiles entries. the xbm_names
60			* array (which is used for converting the numeric face to
61			* a name) contains nrofpixmaps entries.
62			*/
63			static int nroffiles = 0;
64			int nrofpixmaps = 0;
65
66			/**
67			* id is the face to smooth, smooth is the 16x2 face used to smooth id.
68			*/
69	root	1.14	struct smoothing : zero_initialised
70	root	1.4	{
71	root	1.6	uint16 id;
72			uint16 smooth;
73	elmex	1.1	};
74
75			/**
76			* Contains all defined smoothing entries. smooth is an array of nrofsmooth
77			* entries. It is sorted by smooth[].id.
78			*/
79	root	1.6	static struct smoothing *smooth = NULL;
80			int nrofsmooth = 0;
81	elmex	1.1
82			/* the only thing this table is used for now is to
83			* translate the colorname in the magicmap field of the
84			* face into a numeric index that is then sent to the
85			* client for magic map commands. The order of this table
86			* must match that of the NDI colors in include/newclient.h.
87			*/
88			static const char *const colorname[] = {
89	root	1.6	"black", /* 0 */
90			"white", /* 1 */
91			"blue", /* 2 */
92			"red", /* 3 */
93			"orange", /* 4 */
94			"light_blue", /* 5 */
95			"dark_orange", /* 6 */
96			"green", /* 7 */
97			"light_green", /* 8 */
98			"grey", /* 9 */
99			"brown", /* 10 */
100			"yellow", /* 11 */
101			"khaki" /* 12 */
102	elmex	1.1	};
103
104	root	1.6	static int
105			compar (const struct bmappair a, const struct bmappair b)
106			{
107			return strcmp (a->name, b->name);
108	elmex	1.1	}
109	root	1.11
110	root	1.6	static int
111			compar_smooth (const struct smoothing a, const struct smoothing b)
112			{
113			if (a->id < b->id)
114			return -1;
115			if (b->id < a->id)
116			return 1;
117			return 0;
118	elmex	1.1	}
119
120			/*
121			* Returns the matching color in the coloralias if found,
122			* 0 otherwise. Note that 0 will actually be black, so there is no
123			* way the calling function can tell if an error occurred or not
124			*/
125	root	1.6	static uint8
126			find_color (const char *name)
127			{
128	elmex	1.1	uint8 i;
129	root	1.6
130			for (i = 0; i < sizeof (colorname) / sizeof (*colorname); i++)
131			if (!strcmp (name, colorname[i]))
132	elmex	1.1	return i;
133	root	1.6	LOG (llevError, "Unknown color: %s\n", name);
134	elmex	1.1	return 0;
135			}
136
137			/* This reads the lib/faces file, getting color and visibility information.
138			* it is called by ReadBmapNames.
139			*/
140	root	1.6	static void
141			ReadFaceData (void)
142	elmex	1.1	{
143	root	1.6	char buf[MAX_BUF], *cp;
144	root	1.13	facetile *on_face = NULL;
145	root	1.6	FILE *fp;
146
147			sprintf (buf, "%s/faces", settings.datadir);
148	pippijn	1.9	LOG (llevDebug, "Reading faces from %s...\n", buf);
149	root	1.6	if ((fp = fopen (buf, "r")) == NULL)
150			{
151			LOG (llevError, "Cannot open faces file %s: %s\n", buf, strerror (errno));
152			exit (-1);
153	elmex	1.1	}
154	root	1.6	while (fgets (buf, MAX_BUF, fp) != NULL)
155			{
156			if (*buf == '#')
157			continue;
158			if (!strncmp (buf, "end", 3))
159			{
160			on_face = NULL;
161			}
162			else if (!strncmp (buf, "face", 4))
163			{
164			int tmp;
165
166			cp = buf + 5;
167			cp[strlen (cp) - 1] = '\0'; /* remove newline */
168
169			if ((tmp = FindFace (cp, -1)) == -1)
170			{
171			LOG (llevError, "Could not find face %s\n", cp);
172			continue;
173	root	1.4	}
174	root	1.6	on_face = &new_faces[tmp];
175			on_face->visibility = 0;
176	root	1.2	}
177	root	1.6	else if (on_face == NULL)
178			{
179			LOG (llevError, "Got line with no face set: %s\n", buf);
180			}
181			else if (!strncmp (buf, "color_fg", 8))
182			{
183			cp = buf + 9;
184			cp[strlen (cp) - 1] = '\0';
185			if (on_face->magicmap == 255)
186			on_face->magicmap = find_color (cp);
187			}
188			else if (!strncmp (buf, "color_bg", 8))
189			{
190			/* ignore it */
191			}
192			else if (!strncmp (buf, "visibility", 10))
193			{
194			on_face->visibility = atoi (buf + 11);
195			}
196			else if (!strncmp (buf, "magicmap", 8))
197			{
198			cp = buf + 9;
199			cp[strlen (cp) - 1] = '\0';
200			on_face->magicmap = find_color (cp);
201			}
202			else if (!strncmp (buf, "is_floor", 8))
203			{
204			int value = atoi (buf + 9);
205
206			if (value)
207			on_face->magicmap \|= FACE_FLOOR;
208	root	1.2	}
209	root	1.6	else
210			LOG (llevDebug, "Got unknown line in faces file: %s\n", buf);
211	elmex	1.1	}
212	root	1.11
213	root	1.6	LOG (llevDebug, "done\n");
214			fclose (fp);
215	elmex	1.1	}
216
217			/* This reads the bmaps file to get all the bitmap names and
218			* stuff. It only needs to be done once, because it is player
219			* independent (ie, what display the person is on will not make a
220			* difference.)
221			*/
222	root	1.6	void
223			ReadBmapNames (void)
224			{
225			char buf[MAX_BUF], p, q;
226			FILE *fp;
227			int value, nrofbmaps = 0, i;
228			size_t l;
229
230			bmaps_checksum = 0;
231			sprintf (buf, "%s/bmaps", settings.datadir);
232	pippijn	1.9	LOG (llevDebug, "Reading bmaps from %s...\n", buf);
233	root	1.6	if ((fp = fopen (buf, "r")) == NULL)
234			{
235			LOG (llevError, "Cannot open bmaps file %s: %s\n", buf, strerror (errno));
236			exit (-1);
237	elmex	1.1	}
238	root	1.6
239			/* First count how many bitmaps we have, so we can allocate correctly */
240			while (fgets (buf, MAX_BUF, fp) != NULL)
241			if (buf[0] != '#' && buf[0] != '\n')
242			nrofbmaps++;
243			rewind (fp);
244
245			xbm = new bmappair[nrofbmaps];
246			memset (xbm, 0, sizeof (struct bmappair) * nrofbmaps);
247
248			while (nroffiles < nrofbmaps && fgets (buf, MAX_BUF, fp) != NULL)
249			{
250			if (*buf == '#')
251			continue;
252
253			p = (*buf == '\\') ? (buf + 1) : buf;
254			if (!(p = strtok (p, " \t")) \|\| !(q = strtok (NULL, " \t\n")))
255			{
256			LOG (llevDebug, "Warning, syntax error: %s\n", buf);
257			continue;
258			}
259			value = atoi (p);
260	root	1.8	xbm[nroffiles].name = strdup (q);
261	root	1.6
262			/* We need to calculate the checksum of the bmaps file
263			* name->number mapping to send to the client. This does not
264			* need to match what sum or other utility may come up with -
265			* as long as we get the same results on the same real file
266			* data, it does the job as it lets the client know if
267			* the file has the same data or not.
268			*/
269			ROTATE_RIGHT (bmaps_checksum);
270			bmaps_checksum += value & 0xff;
271			bmaps_checksum &= 0xffffffff;
272
273			ROTATE_RIGHT (bmaps_checksum);
274			bmaps_checksum += (value >> 8) & 0xff;
275			bmaps_checksum &= 0xffffffff;
276			for (l = 0; l < strlen (q); l++)
277			{
278			ROTATE_RIGHT (bmaps_checksum);
279			bmaps_checksum += q[l];
280			bmaps_checksum &= 0xffffffff;
281			}
282
283			xbm[nroffiles].number = value;
284			nroffiles++;
285			if (value >= nrofpixmaps)
286			nrofpixmaps = value + 1;
287	elmex	1.1	}
288	root	1.6	fclose (fp);
289	elmex	1.1
290	root	1.6	LOG (llevDebug, "done (got %d/%d/%d)\n", nrofpixmaps, nrofbmaps, nroffiles);
291	elmex	1.1
292	root	1.13	new_faces = new facetile[nrofpixmaps];
293	root	1.6
294			for (i = 0; i < nrofpixmaps; i++)
295			{
296			new_faces[i].name = "";
297			new_faces[i].number = i;
298			new_faces[i].visibility = 0;
299			new_faces[i].magicmap = 255;
300	elmex	1.1	}
301	root	1.15
302	root	1.6	for (i = 0; i < nroffiles; i++)
303	root	1.15	new_faces[xbm[i].number].name = xbm[i].name;
304	elmex	1.1
305	root	1.6	// non-pod datatype, likely not allowed
306			qsort (xbm, nroffiles, sizeof (struct bmappair), (int ()(const void , const void *)) compar);
307	elmex	1.1
308	root	1.6	ReadFaceData ();
309	elmex	1.1
310	root	1.6	for (i = 0; i < nrofpixmaps; i++)
311			{
312			if (new_faces[i].magicmap == 255)
313			{
314			#if 0 /* Useful for initial debugging, not needed now */
315			LOG (llevDebug, "Face %s still had default magicmap, resetting to black\n", new_faces[i].name);
316	elmex	1.1	#endif
317	root	1.6	new_faces[i].magicmap = 0;
318	root	1.2	}
319	elmex	1.1	}
320	root	1.6	/* Actually forcefully setting the colors here probably should not
321			* be done - it could easily create confusion.
322			*/
323			blank_face = &new_faces[FindFace (BLANK_FACE_NAME, 0)];
324			blank_face->magicmap = find_color ("khaki") \| FACE_FLOOR;
325
326			empty_face = &new_faces[FindFace (EMPTY_FACE_NAME, 0)];
327
328			dark_faces[0] = &new_faces[FindFace (DARK_FACE1_NAME, 0)];
329			dark_faces[1] = &new_faces[FindFace (DARK_FACE2_NAME, 0)];
330			dark_faces[2] = &new_faces[FindFace (DARK_FACE3_NAME, 0)];
331	elmex	1.1
332	root	1.6	smooth_face = &new_faces[FindFace (SMOOTH_FACE_NAME, 0)];
333	elmex	1.1	}
334
335			/* This returns an the face number of face 'name'. Number is constant
336			* during an invocation, but not necessarily between versions (this
337			* is because the faces are arranged in alphabetical order, so
338			* if a face is removed or added, all faces after that will now
339			* have a different number.
340			*
341			* the parameter error determines behaviour. If a face is
342			* not found, then error is returned. This can be useful if
343			* you want some default face used, or can be set to negative
344			* so that it will be known that the face could not be found
345			* (needed in client, so that it will know to request that image
346			* from the server)
347			*/
348	root	1.6	int
349			FindFace (const char *name, int error)
350			{
351			struct bmappair *bp, tmp;
352			char *p;
353	elmex	1.1
354	root	1.6	if (!name)
355			return error;
356	root	1.5
357	root	1.6	if ((p = strchr (name, '\n')))
358			*p = '\0';
359	elmex	1.1
360	root	1.6	tmp.name = (char *) name;
361			bp = (struct bmappair ) bsearch (&tmp, xbm, nroffiles, sizeof (struct bmappair), (int ()(const void , const void )) compar);
362	elmex	1.1
363	root	1.6	return bp ? bp->number : error;
364	elmex	1.1	}
365
366			/* Reads the smooth file to know how to smooth datas.
367			* the smooth file if made of 2 elements lines.
368			* lines starting with # are comment
369			* the first element of line is face to smooth
370			* the next element is the 16x2 faces picture
371			* used for smoothing
372			*/
373	root	1.6	int
374			ReadSmooth (void)
375			{
376			char buf[MAX_BUF], p, q;
377			FILE *fp;
378			int smoothcount = 0;
379
380			bmaps_checksum = 0;
381			sprintf (buf, "%s/smooth", settings.datadir);
382	pippijn	1.9	LOG (llevDebug, "Reading smooth from %s...\n", buf);
383	root	1.6	if ((fp = fopen (buf, "r")) == NULL)
384			{
385			LOG (llevError, "Cannot open smooth file %s: %s\n", strerror (errno));
386			exit (-1);
387	elmex	1.1	}
388
389	root	1.6	/* First count how many smooth we have, so we can allocate correctly */
390			while (fgets (buf, MAX_BUF, fp) != NULL)
391			if (buf[0] != '#' && buf[0] != '\n')
392			smoothcount++;
393			rewind (fp);
394
395			smooth = new smoothing[smoothcount];
396
397			while (nrofsmooth < smoothcount && fgets (buf, MAX_BUF, fp) != NULL)
398			{
399			if (*buf == '#')
400			continue;
401			p = strchr (buf, ' ');
402			if (!p)
403			continue;
404			*p = '\0';
405			q = buf;
406			smooth[nrofsmooth].id = FindFace (q, 0);
407			q = p + 1;
408			smooth[nrofsmooth].smooth = FindFace (q, 0);
409			nrofsmooth++;
410	elmex	1.1	}
411	root	1.6	fclose (fp);
412	elmex	1.1
413	root	1.6	LOG (llevDebug, "done (got %d smooth entries)\n", nrofsmooth);
414			qsort (smooth, nrofsmooth, sizeof (struct smoothing), (int ()(const void , const void *)) compar_smooth);
415			return nrofsmooth;
416	elmex	1.1	}
417
418			/**
419			* Find the smooth face for a given face.
420			*
421			* @param face the face to find the smoothing face for
422			*
423			* @param smoothed return value: set to smooth face
424			*
425			* @return 1=smooth face found, 0=no smooth face found
426			*/
427	root	1.6	int
428			FindSmooth (uint16 face, uint16 * smoothed)
429			{
430			struct smoothing *bp, tmp;
431	elmex	1.1
432	root	1.6	tmp.id = face;
433			bp = (struct smoothing *) bsearch
434			(&tmp, smooth, nrofsmooth, sizeof (struct smoothing), (int ()(const void , const void *)) compar_smooth);
435			(*smoothed) = 0;
436			if (bp)
437			(*smoothed) = bp->smooth;
438			return bp ? 1 : 0;
439	elmex	1.1	}
440
441			/**
442			* Deallocates memory allocated by ReadBmapNames() and ReadSmooth().
443			*/
444	root	1.6	void
445			free_all_images (void)
446	elmex	1.1	{
447	root	1.6	int i;
448	elmex	1.1
449	root	1.6	for (i = 0; i < nroffiles; i++)
450			free (xbm[i].name);
451	root	1.4
452	root	1.6	delete[]xbm;
453			delete[]new_faces;
454			delete[]smooth;
455	elmex	1.1	}