src/xpm/XpmI.h

   1 /*
   2  * Copyright (C) 1989-95 GROUPE BULL
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to
   6  * deal in the Software without restriction, including without limitation the
   7  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
   8  * sell copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17  * GROUPE BULL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  18  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  19  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  20  *
  21  * Except as contained in this notice, the name of GROUPE BULL shall not be
  22  * used in advertising or otherwise to promote the sale, use or other dealings
  23  * in this Software without prior written authorization from GROUPE BULL.
  24  */
  25
  26 /*****************************************************************************\
  27 * XpmI.h:                                                                     *
  28 *                                                                             *
  29 *  XPM library                                                                *
  30 *  Internal Include file                                                      *
  31 *                                                                             *
  32 *  ** Everything defined here is subject to changes any time. **              *
  33 *                                                                             *
  34 *  Developed by Arnaud Le Hors                                                *
  35 \*****************************************************************************/
  36
  37 /*
  38  * The code related to FOR_MSW has been added by
  39  * HeDu (hedu@cul-ipn.uni-kiel.de) 4/94
  40  */
  41
  42 #ifndef XPMI_h
  43 #define XPMI_h
  44
  45 #include "xpm.h"
  46
  47 // Added by JACS for some compilers (no popen/pclose functions)
  48 #if defined(__WATCOMC__) || (!defined(WIN32) && defined(_MSC_VER)) || (!defined(WIN32) && defined(__BORLANDC__))
  49 #define NO_ZPIPE
  50 #endif
  51
  52 /*
  53  * lets try to solve include files
  54  */
  55
  56 #include <stdio.h>
  57 #include <stdlib.h>
  58 /* stdio.h doesn't declare popen on a Sequent DYNIX OS */
  59 #ifdef sequent
  60 extern FILE *popen();
  61 #endif
  62
  63 #if defined(SYSV) || defined(SVR4) || defined(VMS) || defined(WIN32)
  64 #include <string.h>
  65
  66 #ifndef index
  67 #define index strchr
  68 #endif
  69
  70 #ifndef rindex
  71 #define rindex strrchr
  72 #endif
  73
  74 #else  /* defined(SYSV) || defined(SVR4) || defined(VMS) */
  75 #include <strings.h>
  76 #endif
  77
  78
  79
  80 #if defined(SYSV) || defined(SVR4) || defined(VMS) || defined(WIN32)
  81 #ifndef bcopy
  82 #define bcopy(source, dest, count) memcpy(dest, source, count)
  83 #endif
  84 #ifndef bzero
  85 #define bzero(b, len) memset(b, 0, len)
  86 #endif
  87 #endif
  88
  89 /* the following is defined in X11R6 but not in previous versions */
  90 #ifdef __alpha
  91 #ifndef LONG64
  92 #define LONG64
  93 #endif
  94 #endif
  95
  96 #ifdef VMS
  97 #include <unixio.h>
  98 #include <file.h>
  99 #endif
 100
 101 /* The following should help people wanting to use their own memory allocation
 102  * functions. To avoid the overhead of a function call when the standard
 103  * functions are used these are all macros, even the XpmFree function which
 104  * needs to be a real function for the outside world though.
 105  * So if change these be sure to change the XpmFree function in misc.c
 106  * accordingly.
 107  */
 108 #define XpmFree(ptr) free(ptr)
 109
 110 #ifndef FOR_MSW
 111 #define XpmMalloc(size) malloc((size))
 112 #define XpmRealloc(ptr, size) realloc((ptr), (size))
 113 #define XpmCalloc(nelem, elsize) calloc((nelem), (elsize))
 114 #else
 115 /* checks for mallocs bigger than 64K */
 116 #define XpmMalloc(size) boundCheckingMalloc((long)(size))/* in simx.[ch] */
 117 #define XpmRealloc(ptr, size) boundCheckingRealloc((ptr),(long)(size))
 118 #define XpmCalloc(nelem, elsize) \
 119                 boundCheckingCalloc((long)(nelem),(long) (elsize))
 120 #endif
 121
 122 #define XPMMAXCMTLEN BUFSIZ
 123 typedef struct {
 124     unsigned int type;
 125     union {
 126         FILE *file;
 127         char **data;
 128     }     stream;
 129     char *cptr;
 130     unsigned int line;
 131     int CommentLength;
 132     char Comment[XPMMAXCMTLEN];
 133     char *Bcmt, *Ecmt, Bos, Eos;
 134     int format;                 /* 1 if XPM1, 0 otherwise */
 135 #ifdef CXPMPROG
 136     int lineNum;
 137     int charNum;
 138 #endif
 139 }      xpmData;
 140
 141 #define XPMARRAY 0
 142 #define XPMFILE  1
 143 #define XPMPIPE  2
 144 #define XPMBUFFER 3
 145
 146 #define EOL '\n'
 147 #define TAB '\t'
 148 #define SPC ' '
 149
 150 typedef struct {
 151     char *type;                 /* key word */
 152     char *Bcmt;                 /* string beginning comments */
 153     char *Ecmt;                 /* string ending comments */
 154     char Bos;                   /* character beginning strings */
 155     char Eos;                   /* character ending strings */
 156     char *Strs;                 /* strings separator */
 157     char *Dec;                  /* data declaration string */
 158     char *Boa;                  /* string beginning assignment */
 159     char *Eoa;                  /* string ending assignment */
 160 }      xpmDataType;
 161
 162 extern xpmDataType xpmDataTypes[];
 163
 164 /*
 165  * rgb values and ascii names (from rgb text file) rgb values,
 166  * range of 0 -> 65535 color mnemonic of rgb value
 167  */
 168 typedef struct {
 169     int r, g, b;
 170     char *name;
 171 }      xpmRgbName;
 172
 173 /* Maximum number of rgb mnemonics allowed in rgb text file. */
 174 #define MAX_RGBNAMES 1024
 175
 176 extern char *xpmColorKeys[];
 177
 178 #define TRANSPARENT_COLOR "None"        /* this must be a string! */
 179
 180 /* number of xpmColorKeys */
 181 #define NKEYS 5
 182
 183 /* XPM internal routines */
 184
 185 FUNC(xpmParseData, int, (xpmData *data, XpmImage *image, XpmInfo *info));
 186 FUNC(xpmParseDataAndCreate, int, (Display *display, xpmData *data,
 187                                   XImage **image_return,
 188                                   XImage **shapeimage_return,
 189                                   XpmImage *image, XpmInfo *info,
 190                                   XpmAttributes *attributes));
 191
 192 FUNC(xpmFreeColorTable, void, (XpmColor *colorTable, int ncolors));
 193
 194 FUNC(xpmInitAttributes, void, (XpmAttributes *attributes));
 195
 196 FUNC(xpmInitXpmImage, void, (XpmImage *image));
 197
 198 FUNC(xpmInitXpmInfo, void, (XpmInfo *info));
 199
 200 FUNC(xpmSetInfoMask, void, (XpmInfo *info, XpmAttributes *attributes));
 201 FUNC(xpmSetInfo, void, (XpmInfo *info, XpmAttributes *attributes));
 202 FUNC(xpmSetAttributes, void, (XpmAttributes *attributes, XpmImage *image,
 203                               XpmInfo *info));
 204
 205 #if !defined(FOR_MSW) && !defined(AMIGA)
 206 FUNC(xpmCreatePixmapFromImage, void, (Display *display, Drawable d,
 207                                       XImage *ximage, Pixmap *pixmap_return));
 208
 209 FUNC(xpmCreateImageFromPixmap, void, (Display *display, Pixmap pixmap,
 210                                       XImage **ximage_return,
 211                                       unsigned int *width,
 212                                       unsigned int *height));
 213 #endif
 214
 215 /* structures and functions related to hastable code */
 216
 217 typedef struct _xpmHashAtom {
 218     char *name;
 219     void *data;
 220 }      *xpmHashAtom;
 221
 222 typedef struct {
 223     int size;
 224     int limit;
 225     int used;
 226     xpmHashAtom *atomTable;
 227 }      xpmHashTable;
 228
 229 FUNC(xpmHashTableInit, int, (xpmHashTable *table));
 230 FUNC(xpmHashTableFree, void, (xpmHashTable *table));
 231 FUNC(xpmHashSlot, xpmHashAtom *, (xpmHashTable *table, char *s));
 232 FUNC(xpmHashIntern, int, (xpmHashTable *table, char *tag, void *data));
 233
 234 #define HashAtomData(i) ((void *)i)
 235 #define HashColorIndex(slot) ((unsigned int)((*slot)->data))
 236 #define USE_HASHTABLE (cpp > 2 && ncolors > 4)
 237
 238 /* I/O utility */
 239
 240 FUNC(xpmNextString, int, (xpmData *mdata));
 241 FUNC(xpmNextUI, int, (xpmData *mdata, unsigned int *ui_return));
 242 FUNC(xpmGetString, int, (xpmData *mdata, char **sptr, unsigned int *l));
 243
 244 #define xpmGetC(mdata) \
 245         ((!mdata->type || mdata->type == XPMBUFFER) ? \
 246          (*mdata->cptr++) : (getc(mdata->stream.file)))
 247
 248 FUNC(xpmNextWord, unsigned int,
 249      (xpmData *mdata, char *buf, unsigned int buflen));
 250 FUNC(xpmGetCmt, int, (xpmData *mdata, char **cmt));
 251 FUNC(xpmParseHeader, int, (xpmData *mdata));
 252 FUNC(xpmParseValues, int, (xpmData *data, unsigned int *width,
 253                            unsigned int *height, unsigned int *ncolors,
 254                            unsigned int *cpp, unsigned int *x_hotspot,
 255                            unsigned int *y_hotspot, unsigned int *hotspot,
 256                            unsigned int *extensions));
 257
 258 FUNC(xpmParseColors, int, (xpmData *data, unsigned int ncolors,
 259                            unsigned int cpp, XpmColor **colorTablePtr,
 260                            xpmHashTable *hashtable));
 261
 262 FUNC(xpmParseExtensions, int, (xpmData *data, XpmExtension **extensions,
 263                                unsigned int *nextensions));
 264
 265 /* RGB utility */
 266
 267 FUNC(xpmReadRgbNames, int, (char *rgb_fname, xpmRgbName *rgbn));
 268 FUNC(xpmGetRgbName, char *, (xpmRgbName *rgbn, int rgbn_max,
 269                              int red, int green, int blue));
 270 FUNC(xpmFreeRgbNames, void, (xpmRgbName *rgbn, int rgbn_max));
 271 #ifdef FOR_MSW
 272 FUNC(xpmGetRGBfromName,int, (char *name, int *r, int *g, int *b));
 273 #endif
 274
 275 #ifndef AMIGA
 276 FUNC(xpm_xynormalizeimagebits, void, (register unsigned char *bp,
 277                                       register XImage *img));
 278 FUNC(xpm_znormalizeimagebits, void, (register unsigned char *bp,
 279                                      register XImage *img));
 280
 281 /*
 282  * Macros
 283  *
 284  * The XYNORMALIZE macro determines whether XY format data requires
 285  * normalization and calls a routine to do so if needed. The logic in
 286  * this module is designed for LSBFirst byte and bit order, so
 287  * normalization is done as required to present the data in this order.
 288  *
 289  * The ZNORMALIZE macro performs byte and nibble order normalization if
 290  * required for Z format data.
 291  *
 292  * The XYINDEX macro computes the index to the starting byte (char) boundary
 293  * for a bitmap_unit containing a pixel with coordinates x and y for image
 294  * data in XY format.
 295  *
 296  * The ZINDEX* macros compute the index to the starting byte (char) boundary
 297  * for a pixel with coordinates x and y for image data in ZPixmap format.
 298  *
 299  */
 300
 301 #define XYNORMALIZE(bp, img) \
 302     if ((img->byte_order == MSBFirst) || (img->bitmap_bit_order == MSBFirst)) \
 303         xpm_xynormalizeimagebits((unsigned char *)(bp), img)
 304
 305 #define ZNORMALIZE(bp, img) \
 306     if (img->byte_order == MSBFirst) \
 307         xpm_znormalizeimagebits((unsigned char *)(bp), img)
 308
 309 #define XYINDEX(x, y, img) \
 310     ((y) * img->bytes_per_line) + \
 311     (((x) + img->xoffset) / img->bitmap_unit) * (img->bitmap_unit >> 3)
 312
 313 #define ZINDEX(x, y, img) ((y) * img->bytes_per_line) + \
 314     (((x) * img->bits_per_pixel) >> 3)
 315
 316 #define ZINDEX32(x, y, img) ((y) * img->bytes_per_line) + ((x) << 2)
 317
 318 #define ZINDEX16(x, y, img) ((y) * img->bytes_per_line) + ((x) << 1)
 319
 320 #define ZINDEX8(x, y, img) ((y) * img->bytes_per_line) + (x)
 321
 322 #define ZINDEX1(x, y, img) ((y) * img->bytes_per_line) + ((x) >> 3)
 323 #endif /* not AMIGA */
 324
 325 #ifdef __STDC__
 326 #define Const const
 327 #else
 328 #define Const /**/
 329 #endif
 330
 331 #ifdef NEED_STRDUP
 332 FUNC(xpmstrdup, char *, (char *s1));
 333 #else
 334 #undef xpmstrdup
 335 #define xpmstrdup strdup
 336 #endif
 337
 338 #ifdef NEED_STRCASECMP
 339 FUNC(xpmstrcasecmp, int, (char *s1, char *s2));
 340 #else
 341 #undef xpmstrcasecmp
 342 #define xpmstrcasecmp strcasecmp
 343 #endif
 344
 345 FUNC(xpmatoui, unsigned int,
 346      (char *p, unsigned int l, unsigned int *ui_return));
 347
 348 #endif