Mercurial > hg > xemacs-beta
annotate src/glyphs-shared.c @ 5940:c608d4b0b75e cygwin64 tip
rescue lost branch from 64bit.backup
| author | Henry Thompson <ht@markup.co.uk> |
|---|---|
| date | Thu, 16 Dec 2021 18:48:58 +0000 |
| parents | 308d34e9f07d |
| children |
| 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 | |
|
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11 XEmacs is free software: you can redistribute it and/or modify it |
| 563 | 12 under the terms of the GNU General Public License as published by the |
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13 Free Software Foundation, either version 3 of the License, or (at your |
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14 option) any later version. |
| 563 | 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 | |
|
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22 along with XEmacs. If not, see <http://www.gnu.org/licenses/>. */ |
| 563 | 23 |
| 24 /* Synched up with: Not in FSF. */ | |
| 25 | |
| 26 /* taken from glyphs-*.c | |
| 27 HINT HINT HINT Bill Perry: Please put code here and avoid massive | |
| 28 duplication in *-gtk.c!!! */ | |
| 29 | |
| 30 #include <config.h> | |
| 31 #include "lisp.h" | |
| 32 | |
| 800 | 33 #include "buffer.h" |
| 563 | 34 #include "elhash.h" |
| 800 | 35 #include "faces.h" |
| 563 | 36 #include "frame.h" |
| 800 | 37 #include "glyphs.h" |
| 38 #include "imgproc.h" | |
| 563 | 39 #include "insdel.h" |
| 800 | 40 #include "lstream.h" |
| 563 | 41 #include "opaque.h" |
| 42 #include "sysdep.h" | |
| 800 | 43 #include "window.h" |
| 44 | |
| 563 | 45 #include "sysfile.h" |
| 46 | |
| 47 Lisp_Object Q_resource_type, Q_resource_id; | |
| 48 | |
| 49 void | |
| 50 shared_resource_validate (Lisp_Object instantiator) | |
| 51 { | |
| 52 if ((NILP (find_keyword_in_vector (instantiator, Q_file)) | |
| 53 && | |
| 54 NILP (find_keyword_in_vector (instantiator, Q_resource_id))) | |
| 55 || | |
| 56 NILP (find_keyword_in_vector (instantiator, Q_resource_type))) | |
| 57 sferror ("Must supply :file, :resource-id and :resource-type", | |
| 58 instantiator); | |
| 59 } | |
| 60 | |
| 61 | |
| 62 Lisp_Object | |
| 63 shared_resource_normalize (Lisp_Object inst, Lisp_Object console_type, | |
| 2286 | 64 Lisp_Object UNUSED (dest_mask), Lisp_Object tag) |
| 563 | 65 { |
| 66 /* This function can call lisp */ | |
| 67 Lisp_Object file = Qnil; | |
| 68 struct gcpro gcpro1, gcpro2; | |
| 69 Lisp_Object alist = Qnil; | |
| 70 | |
| 71 GCPRO2 (file, alist); | |
| 72 | |
| 73 file = potential_pixmap_file_instantiator (inst, Q_file, Q_data, | |
| 74 console_type); | |
| 75 | |
| 4226 | 76 if (NILP (file)) /* normalization impossible for the console type */ |
| 77 RETURN_UNGCPRO (Qnil); | |
| 78 | |
| 563 | 79 if (CONSP (file)) /* failure locating filename */ |
| 80 signal_double_image_error ("Opening pixmap file", | |
| 81 "no such file or directory", | |
| 82 Fcar (file)); | |
| 83 | |
| 4226 | 84 if (EQ (file, Qt)) /* no conversion necessary */ |
| 563 | 85 RETURN_UNGCPRO (inst); |
| 86 | |
| 87 alist = tagged_vector_to_alist (inst); | |
| 88 | |
| 89 { | |
| 90 alist = remassq_no_quit (Q_file, alist); | |
| 91 alist = Fcons (Fcons (Q_file, file), alist); | |
| 92 } | |
| 93 | |
| 94 { | |
| 95 Lisp_Object result = alist_to_tagged_vector (tag, alist); | |
| 96 free_alist (alist); | |
| 97 RETURN_UNGCPRO (result); | |
| 98 } | |
| 99 } | |
| 100 | |
| 608 | 101 /* Originally from xmu.c, but is now shared across X11, GTK, and MSW. */ |
| 102 /* | |
| 103 * Based on an optimized version provided by Jim Becker, August 5, 1988. | |
| 104 */ | |
| 105 | |
| 106 | |
| 107 #ifndef BitmapSuccess | |
| 108 #define BitmapSuccess 0 | |
| 109 #define BitmapOpenFailed 1 | |
| 110 #define BitmapFileInvalid 2 | |
| 111 #define BitmapNoMemory 3 | |
| 112 #endif | |
| 113 | |
| 114 #define MAX_SIZE 255 | |
| 115 | |
| 116 /* shared data for the image read/parse logic */ | |
| 117 static short hexTable[256]; /* conversion value */ | |
| 118 static int hex_initialized; /* easier to fill in at run time */ | |
| 119 | |
| 120 | |
| 121 /* | |
| 122 * Table index for the hex values. Initialized once, first time. | |
| 123 * Used for translation value or delimiter significance lookup. | |
| 124 */ | |
| 125 static void initHexTable (void) | |
| 126 { | |
| 127 /* | |
| 128 * We build the table at run time for several reasons: | |
| 129 * | |
| 130 * 1. portable to non-ASCII machines. | |
| 131 * 2. still reentrant since we set the init flag after setting table. | |
| 132 * 3. easier to extend. | |
| 133 * 4. less prone to bugs. | |
| 134 */ | |
| 135 hexTable['0'] = 0; hexTable['1'] = 1; | |
| 136 hexTable['2'] = 2; hexTable['3'] = 3; | |
| 137 hexTable['4'] = 4; hexTable['5'] = 5; | |
| 138 hexTable['6'] = 6; hexTable['7'] = 7; | |
| 139 hexTable['8'] = 8; hexTable['9'] = 9; | |
| 140 hexTable['A'] = 10; hexTable['B'] = 11; | |
| 141 hexTable['C'] = 12; hexTable['D'] = 13; | |
| 142 hexTable['E'] = 14; hexTable['F'] = 15; | |
| 143 hexTable['a'] = 10; hexTable['b'] = 11; | |
| 144 hexTable['c'] = 12; hexTable['d'] = 13; | |
| 145 hexTable['e'] = 14; hexTable['f'] = 15; | |
| 146 | |
| 147 /* delimiters of significance are flagged w/ negative value */ | |
| 148 hexTable[' '] = -1; hexTable[','] = -1; | |
| 149 hexTable['}'] = -1; hexTable['\n'] = -1; | |
| 150 hexTable['\t'] = -1; | |
| 151 | |
| 152 hex_initialized = 1; | |
| 153 } | |
| 154 | |
| 155 /* | |
| 156 * read next hex value in the input stream, return -1 if EOF | |
| 157 */ | |
| 158 static int NextInt (FILE *fstream) | |
| 159 { | |
| 160 int ch; | |
| 161 int value = 0; | |
| 162 int gotone = 0; | |
| 163 int done = 0; | |
| 164 | |
| 165 /* loop, accumulate hex value until find delimiter */ | |
| 166 /* skip any initial delimiters found in read stream */ | |
| 167 | |
| 168 while (!done) { | |
| 169 ch = getc(fstream); | |
| 170 if (ch == EOF) { | |
| 171 value = -1; | |
| 172 done++; | |
| 173 } else { | |
| 174 /* trim high bits, check type and accumulate */ | |
| 175 ch &= 0xff; | |
| 176 if (isascii(ch) && isxdigit(ch)) { | |
| 177 value = (value << 4) + hexTable[ch]; | |
| 178 gotone++; | |
| 179 } else if ((hexTable[ch]) < 0 && gotone) | |
| 180 done++; | |
| 181 } | |
| 182 } | |
| 183 return value; | |
| 184 } | |
| 185 | |
| 186 | |
| 187 /* | |
| 188 * The data returned by the following routine is always in left-most byte | |
| 189 * first and left-most bit first. If it doesn't return BitmapSuccess then | |
| 190 * its arguments won't have been touched. This routine should look as much | |
| 191 * like the Xlib routine XReadBitmapfile as possible. | |
| 192 */ | |
| 611 | 193 static int |
| 2367 | 194 read_bitmap_data (FILE *fstream, int *width, int *height, Binbyte **datap, |
| 611 | 195 int *x_hot, int *y_hot) |
| 608 | 196 { |
| 2367 | 197 Binbyte *data = NULL; /* working variable */ |
| 198 Ascbyte line[MAX_SIZE]; /* input line from file */ | |
| 608 | 199 int size; /* number of bytes of data */ |
| 2367 | 200 Ascbyte name_and_type[MAX_SIZE]; /* an input line */ |
| 201 Ascbyte *type; /* for parsing */ | |
| 608 | 202 int value; /* from an input line */ |
| 203 int version10p; /* boolean, old format */ | |
| 204 int padding; /* to handle alignment */ | |
| 205 int bytes_per_line; /* per scanline of data */ | |
| 647 | 206 int ww = 0; /* width */ |
| 207 int hh = 0; /* height */ | |
| 608 | 208 int hx = -1; /* x hotspot */ |
| 209 int hy = -1; /* y hotspot */ | |
| 210 | |
| 211 #ifndef Xmalloc | |
| 212 #define Xmalloc(size) malloc(size) | |
| 213 #endif | |
| 214 | |
| 215 /* first time initialization */ | |
| 216 if (!hex_initialized) initHexTable(); | |
| 217 | |
| 218 /* error cleanup and return macro */ | |
| 219 #define RETURN(code) { if (data) free (data); return code; } | |
| 220 | |
| 221 while (fgets(line, MAX_SIZE, fstream)) { | |
| 222 if (strlen(line) == MAX_SIZE-1) { | |
| 223 RETURN (BitmapFileInvalid); | |
| 224 } | |
| 225 if (sscanf(line,"#define %s %d",name_and_type,&value) == 2) { | |
| 226 if (!(type = strrchr(name_and_type, '_'))) | |
| 227 type = name_and_type; | |
| 228 else | |
| 229 type++; | |
| 230 | |
| 231 if (!strcmp("width", type)) | |
| 647 | 232 ww = value; |
| 608 | 233 if (!strcmp("height", type)) |
| 647 | 234 hh = value; |
| 608 | 235 if (!strcmp("hot", type)) { |
| 236 if (type-- == name_and_type || type-- == name_and_type) | |
| 237 continue; | |
| 238 if (!strcmp("x_hot", type)) | |
| 239 hx = value; | |
| 240 if (!strcmp("y_hot", type)) | |
| 241 hy = value; | |
| 242 } | |
| 243 continue; | |
| 244 } | |
| 245 | |
| 246 if (sscanf(line, "static short %s = {", name_and_type) == 1) | |
| 247 version10p = 1; | |
| 248 else if (sscanf(line,"static unsigned char %s = {",name_and_type) == 1) | |
| 249 version10p = 0; | |
| 250 else if (sscanf(line, "static char %s = {", name_and_type) == 1) | |
| 251 version10p = 0; | |
| 252 else | |
| 253 continue; | |
| 254 | |
| 255 if (!(type = strrchr(name_and_type, '_'))) | |
| 256 type = name_and_type; | |
| 257 else | |
| 258 type++; | |
| 259 | |
| 260 if (strcmp("bits[]", type)) | |
| 261 continue; | |
| 262 | |
| 263 if (!ww || !hh) | |
| 264 RETURN (BitmapFileInvalid); | |
| 265 | |
| 266 if ((ww % 16) && ((ww % 16) < 9) && version10p) | |
| 267 padding = 1; | |
| 268 else | |
| 269 padding = 0; | |
| 270 | |
| 271 bytes_per_line = (ww+7)/8 + padding; | |
| 272 | |
| 273 size = bytes_per_line * hh; | |
| 2367 | 274 data = (Binbyte *) Xmalloc ((unsigned int) size); |
| 608 | 275 if (!data) |
| 276 RETURN (BitmapNoMemory); | |
| 277 | |
| 278 if (version10p) { | |
| 2367 | 279 Binbyte *ptr; |
| 608 | 280 int bytes; |
| 281 | |
| 282 for (bytes=0, ptr=data; bytes<size; (bytes += 2)) { | |
| 283 if ((value = NextInt(fstream)) < 0) | |
| 284 RETURN (BitmapFileInvalid); | |
| 285 *(ptr++) = value; | |
| 286 if (!padding || ((bytes+2) % bytes_per_line)) | |
| 287 *(ptr++) = value >> 8; | |
| 288 } | |
| 289 } else { | |
| 2367 | 290 Binbyte *ptr; |
| 608 | 291 int bytes; |
| 292 | |
| 293 for (bytes=0, ptr=data; bytes<size; bytes++, ptr++) { | |
| 294 if ((value = NextInt(fstream)) < 0) | |
| 295 RETURN (BitmapFileInvalid); | |
| 296 *ptr=value; | |
| 297 } | |
| 298 } | |
| 299 break; | |
| 300 } /* end while */ | |
| 301 | |
| 302 if (data == NULL) { | |
| 303 RETURN (BitmapFileInvalid); | |
| 304 } | |
| 305 | |
| 306 *datap = data; | |
| 307 data = NULL; | |
| 308 *width = ww; | |
| 309 *height = hh; | |
| 310 if (x_hot) *x_hot = hx; | |
| 311 if (y_hot) *y_hot = hy; | |
| 312 | |
| 313 RETURN (BitmapSuccess); | |
| 314 } | |
| 315 | |
| 316 | |
| 611 | 317 int |
| 771 | 318 read_bitmap_data_from_file (Lisp_Object filename, |
| 611 | 319 /* Remaining args are RETURNED */ |
| 647 | 320 int *width, |
| 321 int *height, | |
| 2367 | 322 Binbyte **datap, |
| 611 | 323 int *x_hot, int *y_hot) |
| 608 | 324 { |
| 771 | 325 FILE *fstream; |
| 326 int status; | |
| 327 Extbyte *fileext; | |
| 608 | 328 |
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329 LISP_PATHNAME_CONVERT_OUT (filename, fileext); |
| 771 | 330 if ((fstream = fopen (fileext, "r")) == NULL) |
| 331 return BitmapOpenFailed; | |
| 332 status = read_bitmap_data (fstream, width, height, datap, x_hot, y_hot); | |
| 333 retry_fclose (fstream); | |
| 334 return status; | |
| 608 | 335 } |
| 336 | |
| 563 | 337 void |
| 338 syms_of_glyphs_shared (void) | |
| 339 { | |
| 340 DEFKEYWORD (Q_resource_id); | |
| 341 DEFKEYWORD (Q_resource_type); | |
| 342 } |