Mercurial > hg > xemacs-beta
annotate src/glyphs-shared.c @ 5022:cfe36e196dc7
long comment in syswindows.h about build constants
-------------------- ChangeLog entries follow: --------------------
src/ChangeLog addition:
2010-02-09 Ben Wing <ben@xemacs.org>
* syswindows.h:
Create a long comment about build flags such as WIN32_NATIVE,
HAVE_MS_WINDOWS.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Tue, 09 Feb 2010 19:07:36 -0600 |
| parents | b3ea9c582280 |
| children | 308d34e9f07d |
| rev | line source |
|---|---|
| 608 | 1 /* Routines shared between window-system backends for glyph objects. |
| 563 | 2 Copyright (C) 1993, 1994 Free Software Foundation, Inc. |
| 4226 | 3 Copyright (C) 1995 Board of Trustees, University of Illinois |
| 563 | 4 Copyright (C) 1995 Tinker Systems |
| 771 | 5 Copyright (C) 1995, 1996, 2001 Ben Wing |
| 563 | 6 Copyright (C) 1995 Sun Microsystems |
| 4226 | 7 Copyright (C) 1998, 1999, 2000 Andy Piper |
| 563 | 8 |
| 9 This file is part of XEmacs. | |
| 10 | |
| 11 XEmacs is free software; you can redistribute it and/or modify it | |
| 12 under the terms of the GNU General Public License as published by the | |
| 13 Free Software Foundation; either version 2, or (at your option) any | |
| 14 later version. | |
| 15 | |
| 16 XEmacs is distributed in the hope that it will be useful, but WITHOUT | |
| 17 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 18 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 19 for more details. | |
| 20 | |
| 21 You should have received a copy of the GNU General Public License | |
| 22 along with XEmacs; see the file COPYING. If not, write to | |
| 23 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 24 Boston, MA 02111-1307, USA. */ | |
| 25 | |
| 26 /* Synched up with: Not in FSF. */ | |
| 27 | |
| 28 /* taken from glyphs-*.c | |
| 29 HINT HINT HINT Bill Perry: Please put code here and avoid massive | |
| 30 duplication in *-gtk.c!!! */ | |
| 31 | |
| 32 #include <config.h> | |
| 33 #include "lisp.h" | |
| 34 | |
| 800 | 35 #include "buffer.h" |
| 563 | 36 #include "elhash.h" |
| 800 | 37 #include "faces.h" |
| 563 | 38 #include "frame.h" |
| 800 | 39 #include "glyphs.h" |
| 40 #include "imgproc.h" | |
| 563 | 41 #include "insdel.h" |
| 800 | 42 #include "lstream.h" |
| 563 | 43 #include "opaque.h" |
| 44 #include "sysdep.h" | |
| 800 | 45 #include "window.h" |
| 46 | |
| 563 | 47 #include "sysfile.h" |
| 48 | |
| 49 Lisp_Object Q_resource_type, Q_resource_id; | |
| 50 | |
| 51 void | |
| 52 shared_resource_validate (Lisp_Object instantiator) | |
| 53 { | |
| 54 if ((NILP (find_keyword_in_vector (instantiator, Q_file)) | |
| 55 && | |
| 56 NILP (find_keyword_in_vector (instantiator, Q_resource_id))) | |
| 57 || | |
| 58 NILP (find_keyword_in_vector (instantiator, Q_resource_type))) | |
| 59 sferror ("Must supply :file, :resource-id and :resource-type", | |
| 60 instantiator); | |
| 61 } | |
| 62 | |
| 63 | |
| 64 Lisp_Object | |
| 65 shared_resource_normalize (Lisp_Object inst, Lisp_Object console_type, | |
| 2286 | 66 Lisp_Object UNUSED (dest_mask), Lisp_Object tag) |
| 563 | 67 { |
| 68 /* This function can call lisp */ | |
| 69 Lisp_Object file = Qnil; | |
| 70 struct gcpro gcpro1, gcpro2; | |
| 71 Lisp_Object alist = Qnil; | |
| 72 | |
| 73 GCPRO2 (file, alist); | |
| 74 | |
| 75 file = potential_pixmap_file_instantiator (inst, Q_file, Q_data, | |
| 76 console_type); | |
| 77 | |
| 4226 | 78 if (NILP (file)) /* normalization impossible for the console type */ |
| 79 RETURN_UNGCPRO (Qnil); | |
| 80 | |
| 563 | 81 if (CONSP (file)) /* failure locating filename */ |
| 82 signal_double_image_error ("Opening pixmap file", | |
| 83 "no such file or directory", | |
| 84 Fcar (file)); | |
| 85 | |
| 4226 | 86 if (EQ (file, Qt)) /* no conversion necessary */ |
| 563 | 87 RETURN_UNGCPRO (inst); |
| 88 | |
| 89 alist = tagged_vector_to_alist (inst); | |
| 90 | |
| 91 { | |
| 92 alist = remassq_no_quit (Q_file, alist); | |
| 93 alist = Fcons (Fcons (Q_file, file), alist); | |
| 94 } | |
| 95 | |
| 96 { | |
| 97 Lisp_Object result = alist_to_tagged_vector (tag, alist); | |
| 98 free_alist (alist); | |
| 99 RETURN_UNGCPRO (result); | |
| 100 } | |
| 101 } | |
| 102 | |
| 608 | 103 /* Originally from xmu.c, but is now shared across X11, GTK, and MSW. */ |
| 104 /* | |
| 105 * Based on an optimized version provided by Jim Becker, August 5, 1988. | |
| 106 */ | |
| 107 | |
| 108 | |
| 109 #ifndef BitmapSuccess | |
| 110 #define BitmapSuccess 0 | |
| 111 #define BitmapOpenFailed 1 | |
| 112 #define BitmapFileInvalid 2 | |
| 113 #define BitmapNoMemory 3 | |
| 114 #endif | |
| 115 | |
| 116 #define MAX_SIZE 255 | |
| 117 | |
| 118 /* shared data for the image read/parse logic */ | |
| 119 static short hexTable[256]; /* conversion value */ | |
| 120 static int hex_initialized; /* easier to fill in at run time */ | |
| 121 | |
| 122 | |
| 123 /* | |
| 124 * Table index for the hex values. Initialized once, first time. | |
| 125 * Used for translation value or delimiter significance lookup. | |
| 126 */ | |
| 127 static void initHexTable (void) | |
| 128 { | |
| 129 /* | |
| 130 * We build the table at run time for several reasons: | |
| 131 * | |
| 132 * 1. portable to non-ASCII machines. | |
| 133 * 2. still reentrant since we set the init flag after setting table. | |
| 134 * 3. easier to extend. | |
| 135 * 4. less prone to bugs. | |
| 136 */ | |
| 137 hexTable['0'] = 0; hexTable['1'] = 1; | |
| 138 hexTable['2'] = 2; hexTable['3'] = 3; | |
| 139 hexTable['4'] = 4; hexTable['5'] = 5; | |
| 140 hexTable['6'] = 6; hexTable['7'] = 7; | |
| 141 hexTable['8'] = 8; hexTable['9'] = 9; | |
| 142 hexTable['A'] = 10; hexTable['B'] = 11; | |
| 143 hexTable['C'] = 12; hexTable['D'] = 13; | |
| 144 hexTable['E'] = 14; hexTable['F'] = 15; | |
| 145 hexTable['a'] = 10; hexTable['b'] = 11; | |
| 146 hexTable['c'] = 12; hexTable['d'] = 13; | |
| 147 hexTable['e'] = 14; hexTable['f'] = 15; | |
| 148 | |
| 149 /* delimiters of significance are flagged w/ negative value */ | |
| 150 hexTable[' '] = -1; hexTable[','] = -1; | |
| 151 hexTable['}'] = -1; hexTable['\n'] = -1; | |
| 152 hexTable['\t'] = -1; | |
| 153 | |
| 154 hex_initialized = 1; | |
| 155 } | |
| 156 | |
| 157 /* | |
| 158 * read next hex value in the input stream, return -1 if EOF | |
| 159 */ | |
| 160 static int NextInt (FILE *fstream) | |
| 161 { | |
| 162 int ch; | |
| 163 int value = 0; | |
| 164 int gotone = 0; | |
| 165 int done = 0; | |
| 166 | |
| 167 /* loop, accumulate hex value until find delimiter */ | |
| 168 /* skip any initial delimiters found in read stream */ | |
| 169 | |
| 170 while (!done) { | |
| 171 ch = getc(fstream); | |
| 172 if (ch == EOF) { | |
| 173 value = -1; | |
| 174 done++; | |
| 175 } else { | |
| 176 /* trim high bits, check type and accumulate */ | |
| 177 ch &= 0xff; | |
| 178 if (isascii(ch) && isxdigit(ch)) { | |
| 179 value = (value << 4) + hexTable[ch]; | |
| 180 gotone++; | |
| 181 } else if ((hexTable[ch]) < 0 && gotone) | |
| 182 done++; | |
| 183 } | |
| 184 } | |
| 185 return value; | |
| 186 } | |
| 187 | |
| 188 | |
| 189 /* | |
| 190 * The data returned by the following routine is always in left-most byte | |
| 191 * first and left-most bit first. If it doesn't return BitmapSuccess then | |
| 192 * its arguments won't have been touched. This routine should look as much | |
| 193 * like the Xlib routine XReadBitmapfile as possible. | |
| 194 */ | |
| 611 | 195 static int |
| 2367 | 196 read_bitmap_data (FILE *fstream, int *width, int *height, Binbyte **datap, |
| 611 | 197 int *x_hot, int *y_hot) |
| 608 | 198 { |
| 2367 | 199 Binbyte *data = NULL; /* working variable */ |
| 200 Ascbyte line[MAX_SIZE]; /* input line from file */ | |
| 608 | 201 int size; /* number of bytes of data */ |
| 2367 | 202 Ascbyte name_and_type[MAX_SIZE]; /* an input line */ |
| 203 Ascbyte *type; /* for parsing */ | |
| 608 | 204 int value; /* from an input line */ |
| 205 int version10p; /* boolean, old format */ | |
| 206 int padding; /* to handle alignment */ | |
| 207 int bytes_per_line; /* per scanline of data */ | |
| 647 | 208 int ww = 0; /* width */ |
| 209 int hh = 0; /* height */ | |
| 608 | 210 int hx = -1; /* x hotspot */ |
| 211 int hy = -1; /* y hotspot */ | |
| 212 | |
| 213 #ifndef Xmalloc | |
| 214 #define Xmalloc(size) malloc(size) | |
| 215 #endif | |
| 216 | |
| 217 /* first time initialization */ | |
| 218 if (!hex_initialized) initHexTable(); | |
| 219 | |
| 220 /* error cleanup and return macro */ | |
| 221 #define RETURN(code) { if (data) free (data); return code; } | |
| 222 | |
| 223 while (fgets(line, MAX_SIZE, fstream)) { | |
| 224 if (strlen(line) == MAX_SIZE-1) { | |
| 225 RETURN (BitmapFileInvalid); | |
| 226 } | |
| 227 if (sscanf(line,"#define %s %d",name_and_type,&value) == 2) { | |
| 228 if (!(type = strrchr(name_and_type, '_'))) | |
| 229 type = name_and_type; | |
| 230 else | |
| 231 type++; | |
| 232 | |
| 233 if (!strcmp("width", type)) | |
| 647 | 234 ww = value; |
| 608 | 235 if (!strcmp("height", type)) |
| 647 | 236 hh = value; |
| 608 | 237 if (!strcmp("hot", type)) { |
| 238 if (type-- == name_and_type || type-- == name_and_type) | |
| 239 continue; | |
| 240 if (!strcmp("x_hot", type)) | |
| 241 hx = value; | |
| 242 if (!strcmp("y_hot", type)) | |
| 243 hy = value; | |
| 244 } | |
| 245 continue; | |
| 246 } | |
| 247 | |
| 248 if (sscanf(line, "static short %s = {", name_and_type) == 1) | |
| 249 version10p = 1; | |
| 250 else if (sscanf(line,"static unsigned char %s = {",name_and_type) == 1) | |
| 251 version10p = 0; | |
| 252 else if (sscanf(line, "static char %s = {", name_and_type) == 1) | |
| 253 version10p = 0; | |
| 254 else | |
| 255 continue; | |
| 256 | |
| 257 if (!(type = strrchr(name_and_type, '_'))) | |
| 258 type = name_and_type; | |
| 259 else | |
| 260 type++; | |
| 261 | |
| 262 if (strcmp("bits[]", type)) | |
| 263 continue; | |
| 264 | |
| 265 if (!ww || !hh) | |
| 266 RETURN (BitmapFileInvalid); | |
| 267 | |
| 268 if ((ww % 16) && ((ww % 16) < 9) && version10p) | |
| 269 padding = 1; | |
| 270 else | |
| 271 padding = 0; | |
| 272 | |
| 273 bytes_per_line = (ww+7)/8 + padding; | |
| 274 | |
| 275 size = bytes_per_line * hh; | |
| 2367 | 276 data = (Binbyte *) Xmalloc ((unsigned int) size); |
| 608 | 277 if (!data) |
| 278 RETURN (BitmapNoMemory); | |
| 279 | |
| 280 if (version10p) { | |
| 2367 | 281 Binbyte *ptr; |
| 608 | 282 int bytes; |
| 283 | |
| 284 for (bytes=0, ptr=data; bytes<size; (bytes += 2)) { | |
| 285 if ((value = NextInt(fstream)) < 0) | |
| 286 RETURN (BitmapFileInvalid); | |
| 287 *(ptr++) = value; | |
| 288 if (!padding || ((bytes+2) % bytes_per_line)) | |
| 289 *(ptr++) = value >> 8; | |
| 290 } | |
| 291 } else { | |
| 2367 | 292 Binbyte *ptr; |
| 608 | 293 int bytes; |
| 294 | |
| 295 for (bytes=0, ptr=data; bytes<size; bytes++, ptr++) { | |
| 296 if ((value = NextInt(fstream)) < 0) | |
| 297 RETURN (BitmapFileInvalid); | |
| 298 *ptr=value; | |
| 299 } | |
| 300 } | |
| 301 break; | |
| 302 } /* end while */ | |
| 303 | |
| 304 if (data == NULL) { | |
| 305 RETURN (BitmapFileInvalid); | |
| 306 } | |
| 307 | |
| 308 *datap = data; | |
| 309 data = NULL; | |
| 310 *width = ww; | |
| 311 *height = hh; | |
| 312 if (x_hot) *x_hot = hx; | |
| 313 if (y_hot) *y_hot = hy; | |
| 314 | |
| 315 RETURN (BitmapSuccess); | |
| 316 } | |
| 317 | |
| 318 | |
| 611 | 319 int |
| 771 | 320 read_bitmap_data_from_file (Lisp_Object filename, |
| 611 | 321 /* Remaining args are RETURNED */ |
| 647 | 322 int *width, |
| 323 int *height, | |
| 2367 | 324 Binbyte **datap, |
| 611 | 325 int *x_hot, int *y_hot) |
| 608 | 326 { |
| 771 | 327 FILE *fstream; |
| 328 int status; | |
| 329 Extbyte *fileext; | |
| 608 | 330 |
|
4834
b3ea9c582280
Use new cygwin_conv_path API with Cygwin 1.7 for converting names between Win32 and POSIX, UTF-8-aware, with attendant changes elsewhere
Ben Wing <ben@xemacs.org>
parents:
4226
diff
changeset
|
331 LISP_PATHNAME_CONVERT_OUT (filename, fileext); |
| 771 | 332 if ((fstream = fopen (fileext, "r")) == NULL) |
| 333 return BitmapOpenFailed; | |
| 334 status = read_bitmap_data (fstream, width, height, datap, x_hot, y_hot); | |
| 335 retry_fclose (fstream); | |
| 336 return status; | |
| 608 | 337 } |
| 338 | |
| 563 | 339 void |
| 340 syms_of_glyphs_shared (void) | |
| 341 { | |
| 342 DEFKEYWORD (Q_resource_id); | |
| 343 DEFKEYWORD (Q_resource_type); | |
| 344 } |