Commit | Line | Data |
---|---|---|
7b416d42 GV |
1 | /* Implementation of BDF font handling on the Microsoft W32 API. |
2 | Copyright (C) 1999 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
19 | Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* Based heavily on code by H. Miyashita for Meadow (a descendant of | |
22 | MULE for W32). */ | |
23 | ||
24 | #include <windows.h> | |
25 | #include "config.h" | |
26 | #include "lisp.h" | |
27 | #include "charset.h" | |
683e946e JR |
28 | #include "frame.h" |
29 | #include "dispextern.h" | |
7b416d42 GV |
30 | #include "fontset.h" |
31 | #include "blockinput.h" | |
32 | #include "w32gui.h" | |
33 | #include "w32term.h" | |
34 | #include "w32bdf.h" | |
35 | ||
36 | #define min(a, b) ((a) < (b) ? (a) : (b)) | |
37 | #define max(a, b) ((a) > (b) ? (a) : (b)) | |
38 | ||
264f0aa7 JR |
39 | /* 10 planes */ |
40 | #define BDF_CODEPOINT_HEAP_INITIAL_SIZE (96 * 10) | |
41 | /* about 96 characters */ | |
42 | #define BDF_BITMAP_HEAP_INITIAL_SIZE (64 * 96) | |
43 | ||
44 | HANDLE hbdf_cp_heap = INVALID_HANDLE_VALUE; | |
45 | HANDLE hbdf_bmp_heap = INVALID_HANDLE_VALUE; | |
9c332a80 | 46 | |
7b416d42 GV |
47 | void w32_free_bdf_font(bdffont *fontp); |
48 | bdffont *w32_init_bdf_font(char *filename); | |
49 | ||
264f0aa7 JR |
50 | cache_bitmap cached_bitmap_slots[BDF_FONT_CACHE_SIZE]; |
51 | cache_bitmap *pcached_bitmap_latest = cached_bitmap_slots; | |
52 | ||
53 | #define FONT_CACHE_SLOT_OVER_P(p) ((p) >= cached_bitmap_slots + BDF_FONT_CACHE_SIZE) | |
54 | ||
7b416d42 GV |
55 | static int |
56 | search_file_line(char *key, char *start, int len, char **val, char **next) | |
57 | { | |
58 | int linelen; | |
264f0aa7 | 59 | unsigned char *p, *q; |
7b416d42 GV |
60 | |
61 | p = memchr(start, '\n', len); | |
62 | if (!p) return -1; | |
63 | for (;start < p;start++) | |
64 | { | |
264f0aa7 | 65 | if ((*start != ' ') && (*start != '\t')) break; |
7b416d42 | 66 | } |
00422310 | 67 | linelen = (char *) p - start + 1; |
7b416d42 GV |
68 | *next = p + 1; |
69 | if (strncmp(start, key, min(strlen(key), linelen)) == 0) | |
70 | { | |
71 | *val = start + strlen(key); | |
72 | return 1; | |
73 | } | |
74 | ||
75 | return 0; | |
76 | } | |
77 | ||
78 | static int | |
79 | proceed_file_line(char *key, char *start, int *len, char **val, char **next) | |
80 | { | |
81 | int flag = 0; | |
82 | ||
83 | do { | |
84 | flag = search_file_line(key, start, *len, val, next); | |
85 | *len -= (int)(*next - start); | |
86 | start = *next; | |
87 | }while(flag == 0); | |
88 | ||
89 | if (flag == -1) return 0; | |
90 | return 1; | |
91 | } | |
264f0aa7 | 92 | |
865203c3 GV |
93 | char* |
94 | get_quoted_string(char *start, char *end) | |
95 | { | |
96 | char *p, *q, *result; | |
97 | ||
98 | p = memchr(start, '\"', end - start); | |
865203c3 GV |
99 | if (!p) return NULL; |
100 | p++; | |
264f0aa7 | 101 | q = memchr(p, '\"', end - p); |
865203c3 GV |
102 | if (!q) return NULL; |
103 | ||
104 | result = (char*) xmalloc(q - p + 1); | |
105 | ||
106 | memcpy(result, p, q - p); | |
107 | result[q - p] = '\0'; | |
108 | ||
109 | return result; | |
110 | } | |
111 | ||
7b416d42 GV |
112 | static int |
113 | set_bdf_font_info(bdffont *fontp) | |
114 | { | |
264f0aa7 | 115 | unsigned char *start, *p, *q; |
7b416d42 GV |
116 | int len, flag; |
117 | int bbw, bbh, bbx, bby; | |
118 | int val1; | |
119 | ||
120 | len = fontp->size; | |
121 | start = fontp->font; | |
122 | ||
123 | fontp->yoffset = 0; | |
124 | fontp->relative_compose = 0; | |
125 | fontp->default_ascent = 0; | |
264f0aa7 | 126 | |
865203c3 GV |
127 | fontp->registry = NULL; |
128 | fontp->encoding = NULL; | |
129 | fontp->slant = NULL; | |
130 | /* fontp->width = NULL; */ | |
7b416d42 GV |
131 | |
132 | flag = proceed_file_line("FONTBOUNDINGBOX", start, &len, &p, &q); | |
133 | if (!flag) return 0; | |
134 | bbw = strtol(p, &start, 10); | |
135 | p = start; | |
136 | bbh = strtol(p, &start, 10); | |
137 | p = start; | |
138 | bbx = strtol(p, &start, 10); | |
139 | p = start; | |
140 | bby = strtol(p, &start, 10); | |
141 | ||
142 | fontp->llx = bbx; | |
143 | fontp->lly = bby; | |
144 | fontp->urx = bbw + bbx; | |
145 | fontp->ury = bbh + bby; | |
146 | fontp->width = bbw; | |
147 | fontp->height = bbh; | |
148 | start = q; | |
149 | flag = proceed_file_line("STARTPROPERTIES", start, &len, &p, &q); | |
150 | if (!flag) return 1; | |
151 | ||
865203c3 GV |
152 | flag = 0; |
153 | ||
7b416d42 GV |
154 | do { |
155 | start = q; | |
156 | if (search_file_line("PIXEL_SIZE", start, len, &p, &q) == 1) | |
157 | { | |
158 | val1 = atoi(p); | |
159 | fontp->pixsz = val1; | |
160 | } | |
161 | else if (search_file_line("FONT_ASCENT", start, len, &p, &q) == 1) | |
162 | { | |
163 | val1 = atoi(p); | |
164 | fontp->ury = val1; | |
165 | } | |
166 | else if (search_file_line("FONT_DESCENT", start, len, &p, &q) == 1) | |
167 | { | |
168 | val1 = atoi(p); | |
169 | fontp->lly = -val1; | |
170 | } | |
171 | else if (search_file_line("_MULE_BASELINE_OFFSET", start, len, &p, &q) == 1) | |
172 | { | |
173 | val1 = atoi(p); | |
264f0aa7 | 174 | fontp->yoffset = -val1; |
7b416d42 GV |
175 | } |
176 | else if (search_file_line("_MULE_RELATIVE_COMPOSE", start, len, &p, &q) == 1) | |
177 | { | |
178 | val1 = atoi(p); | |
179 | fontp->relative_compose = val1; | |
180 | } | |
181 | else if (search_file_line("_MULE_DEFAULT_ASCENT", start, len, &p, &q) == 1) | |
182 | { | |
183 | val1 = atoi(p); | |
184 | fontp->default_ascent = val1; | |
185 | } | |
865203c3 GV |
186 | else if (search_file_line("CHARSET_REGISTRY", start, len, &p, &q) == 1) |
187 | { | |
188 | fontp->registry = get_quoted_string(p, q); | |
189 | } | |
190 | else if (search_file_line("CHARSET_ENCODING", start, len, &p, &q) == 1) | |
191 | { | |
192 | fontp->encoding = get_quoted_string(p, q); | |
193 | } | |
194 | else if (search_file_line("SLANT", start, len, &p, &q) == 1) | |
195 | { | |
196 | fontp->slant = get_quoted_string(p, q); | |
197 | } | |
198 | /* | |
199 | else if (search_file_line("SETWIDTH_NAME", start, len, &p, &q) == 1) | |
200 | { | |
201 | fontp->width = get_quoted_string(p, q); | |
202 | } | |
203 | */ | |
7b416d42 GV |
204 | else |
205 | { | |
206 | flag = search_file_line("ENDPROPERTIES", start, len, &p, &q); | |
207 | } | |
208 | if (flag == -1) return 0; | |
209 | len -= (q - start); | |
210 | }while(flag == 0); | |
211 | start = q; | |
212 | flag = proceed_file_line("CHARS", start, &len, &p, &q); | |
213 | if (!flag) return 0; | |
691a3cb7 | 214 | fontp->nchars = atoi(p); |
7b416d42 GV |
215 | fontp->seeked = q; |
216 | ||
217 | return 1; | |
218 | } | |
219 | ||
220 | bdffont* | |
221 | w32_init_bdf_font(char *filename) | |
222 | { | |
223 | HANDLE hfile, hfilemap; | |
224 | bdffont *bdffontp; | |
225 | unsigned char *font; | |
226 | BY_HANDLE_FILE_INFORMATION fileinfo; | |
227 | int i; | |
228 | ||
264f0aa7 JR |
229 | if (hbdf_cp_heap == INVALID_HANDLE_VALUE) |
230 | hbdf_cp_heap = HeapCreate(0, BDF_CODEPOINT_HEAP_INITIAL_SIZE, 0); | |
231 | if (hbdf_bmp_heap = INVALID_HANDLE_VALUE) | |
232 | hbdf_bmp_heap = HeapCreate(0, BDF_BITMAP_HEAP_INITIAL_SIZE, 0); | |
233 | ||
234 | if (!hbdf_cp_heap || !hbdf_bmp_heap) | |
235 | error("Fail to create heap for BDF."); | |
236 | ||
7b416d42 GV |
237 | hfile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL, |
238 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
239 | if (hfile == INVALID_HANDLE_VALUE) return NULL; | |
240 | if (!GetFileInformationByHandle(hfile, &fileinfo) || | |
241 | (fileinfo.nFileSizeHigh != 0) || | |
242 | (fileinfo.nFileSizeLow > BDF_FILE_SIZE_MAX)) | |
243 | { | |
244 | CloseHandle(hfile); | |
245 | error("Fail to open BDF file."); | |
246 | } | |
247 | hfilemap = CreateFileMapping(hfile, NULL, PAGE_READONLY, 0, 0, NULL); | |
248 | if (hfilemap == INVALID_HANDLE_VALUE) | |
249 | { | |
250 | CloseHandle(hfile); | |
251 | error("Can't map font."); | |
252 | } | |
253 | ||
254 | font = MapViewOfFile(hfilemap, FILE_MAP_READ, 0, 0, 0); | |
255 | ||
256 | if (!font) | |
257 | { | |
258 | CloseHandle(hfile); | |
259 | CloseHandle(hfilemap); | |
260 | error("Can't view font."); | |
261 | } | |
262 | ||
263 | bdffontp = (bdffont *) xmalloc(sizeof(bdffont)); | |
264 | ||
265 | for(i = 0;i < BDF_FIRST_OFFSET_TABLE;i++) | |
865203c3 | 266 | bdffontp->chtbl[i] = NULL; |
7b416d42 GV |
267 | bdffontp->size = fileinfo.nFileSizeLow; |
268 | bdffontp->font = font; | |
269 | bdffontp->hfile = hfile; | |
270 | bdffontp->hfilemap = hfilemap; | |
271 | bdffontp->filename = (char*) xmalloc(strlen(filename) + 1); | |
272 | strcpy(bdffontp->filename, filename); | |
273 | ||
274 | if (!set_bdf_font_info(bdffontp)) | |
275 | { | |
276 | w32_free_bdf_font(bdffontp); | |
277 | error("Invalid BDF font!"); | |
278 | } | |
279 | return bdffontp; | |
280 | } | |
281 | ||
282 | void | |
283 | w32_free_bdf_font(bdffont *fontp) | |
284 | { | |
865203c3 GV |
285 | int i, j; |
286 | font_char *pch; | |
287 | cache_bitmap *pcb; | |
7b416d42 GV |
288 | |
289 | UnmapViewOfFile(fontp->hfilemap); | |
290 | CloseHandle(fontp->hfilemap); | |
291 | CloseHandle(fontp->hfile); | |
865203c3 GV |
292 | |
293 | if (fontp->registry) xfree(fontp->registry); | |
294 | if (fontp->encoding) xfree(fontp->encoding); | |
295 | if (fontp->slant) xfree(fontp->slant); | |
296 | /* if (fontp->width) xfree(fontp->width); */ | |
297 | ||
7b416d42 GV |
298 | xfree(fontp->filename); |
299 | for(i = 0;i < BDF_FIRST_OFFSET_TABLE;i++) | |
300 | { | |
865203c3 GV |
301 | pch = fontp->chtbl[i]; |
302 | if (pch) | |
303 | { | |
304 | for (j = 0;j < BDF_SECOND_OFFSET_TABLE;j++) | |
305 | { | |
306 | pcb = pch[j].pcbmp; | |
264f0aa7 JR |
307 | if (pcb) |
308 | { | |
309 | if (pcb->pbmp) | |
310 | HeapFree(hbdf_bmp_heap, 0, pcb->pbmp); | |
311 | pcb->psrc = NULL; | |
865203c3 | 312 | } |
264f0aa7 JR |
313 | } |
314 | HeapFree(hbdf_cp_heap, 0, pch); | |
865203c3 | 315 | } |
7b416d42 GV |
316 | } |
317 | xfree(fontp); | |
318 | } | |
319 | ||
865203c3 GV |
320 | static font_char* |
321 | get_cached_font_char(bdffont *fontp, int index) | |
7b416d42 | 322 | { |
865203c3 | 323 | font_char *pch, *result; |
7b416d42 GV |
324 | int i; |
325 | ||
264f0aa7 | 326 | if (!BDF_CODEPOINT_RANGE_COVER_P(index)) |
7b416d42 GV |
327 | return NULL; |
328 | ||
865203c3 GV |
329 | pch = fontp->chtbl[BDF_FIRST_OFFSET(index)]; |
330 | if (!pch) | |
7b416d42 | 331 | return NULL; |
264f0aa7 | 332 | |
865203c3 | 333 | result = &pch[BDF_SECOND_OFFSET(index)]; |
7b416d42 | 334 | |
865203c3 | 335 | if (!result->offset) return NULL; |
7b416d42 | 336 | |
865203c3 | 337 | return result; |
7b416d42 GV |
338 | } |
339 | ||
865203c3 | 340 | static font_char* |
7b416d42 GV |
341 | cache_char_offset(bdffont *fontp, int index, unsigned char *offset) |
342 | { | |
865203c3 | 343 | font_char *pch, *result; |
7b416d42 GV |
344 | int i; |
345 | ||
264f0aa7 | 346 | if (!BDF_CODEPOINT_RANGE_COVER_P(index)) |
865203c3 | 347 | return NULL; |
7b416d42 | 348 | |
865203c3 GV |
349 | pch = fontp->chtbl[BDF_FIRST_OFFSET(index)]; |
350 | if (!pch) | |
7b416d42 | 351 | { |
865203c3 | 352 | pch = fontp->chtbl[BDF_FIRST_OFFSET(index)] = |
264f0aa7 JR |
353 | (font_char*) HeapAlloc(hbdf_cp_heap, |
354 | HEAP_ZERO_MEMORY, | |
355 | sizeof(font_char) * | |
356 | BDF_SECOND_OFFSET_TABLE); | |
357 | if (!pch) return NULL; | |
358 | /* memset(pch, 0, sizeof(font_char) * BDF_SECOND_OFFSET_TABLE); */ | |
7b416d42 | 359 | } |
7b416d42 | 360 | |
865203c3 GV |
361 | result = &pch[BDF_SECOND_OFFSET(index)]; |
362 | result->offset = offset; | |
363 | ||
364 | return result; | |
7b416d42 GV |
365 | } |
366 | ||
865203c3 GV |
367 | static font_char* |
368 | seek_char(bdffont *fontp, int index) | |
7b416d42 | 369 | { |
865203c3 | 370 | font_char *result; |
7b416d42 | 371 | int len, flag, font_index; |
264f0aa7 | 372 | unsigned char *start, *p, *q; |
7b416d42 GV |
373 | |
374 | if (!fontp->seeked) return NULL; | |
375 | ||
376 | start = fontp->seeked; | |
377 | len = fontp->size - (start - fontp->font); | |
378 | ||
379 | do { | |
380 | flag = proceed_file_line("ENCODING", start, &len, &p, &q); | |
381 | if (!flag) | |
382 | { | |
383 | fontp->seeked = NULL; | |
384 | return NULL; | |
385 | } | |
386 | font_index = atoi(p); | |
865203c3 GV |
387 | result = cache_char_offset(fontp, font_index, q); |
388 | if (!result) return NULL; | |
389 | ||
390 | start = result->offset; | |
7b416d42 | 391 | } while (font_index != index); |
865203c3 | 392 | fontp->seeked = start; |
7b416d42 | 393 | |
865203c3 GV |
394 | return result; |
395 | } | |
396 | ||
264f0aa7 JR |
397 | static void |
398 | clear_cached_bitmap_slots() | |
399 | { | |
400 | int i; | |
401 | cache_bitmap *p; | |
402 | ||
403 | p = pcached_bitmap_latest; | |
404 | for (i = 0;i < BDF_FONT_CLEAR_SIZE;i++) | |
405 | { | |
406 | if (p->psrc) | |
407 | { | |
408 | if (p->pbmp) | |
409 | HeapFree(hbdf_bmp_heap, 0, p->pbmp); | |
410 | p->psrc->pcbmp = NULL; | |
411 | p->psrc = NULL; | |
412 | } | |
413 | p++; | |
414 | if (FONT_CACHE_SLOT_OVER_P(p)) | |
415 | p = cached_bitmap_slots; | |
416 | } | |
417 | } | |
418 | ||
7b416d42 | 419 | #define GET_HEX_VAL(x) ((isdigit(x)) ? ((x) - '0') : \ |
264f0aa7 JR |
420 | (((x) >= 'A') && ((x) <= 'F')) ? ((x) - 'A' + 10) : \ |
421 | (((x) >= 'a') && ((x) <= 'f')) ? ((x) - 'a' + 10) : \ | |
7b416d42 GV |
422 | (-1)) |
423 | ||
424 | int | |
425 | w32_get_bdf_glyph(bdffont *fontp, int index, int size, glyph_struct *glyph) | |
426 | { | |
865203c3 | 427 | font_char *pch; |
264f0aa7 JR |
428 | unsigned char *start, *p, *q, *bitmapp; |
429 | unsigned char val, val1, val2; | |
430 | int i, j, len, flag, consumed; | |
431 | int align, rowbytes; | |
7b416d42 | 432 | |
865203c3 GV |
433 | pch = get_cached_font_char(fontp, index); |
434 | if (!pch) | |
435 | { | |
436 | pch = seek_char(fontp, index); | |
437 | if (!pch) | |
438 | return 0; | |
439 | } | |
440 | ||
441 | start = pch->offset; | |
442 | ||
443 | if ((size == 0) && pch->pcbmp) | |
444 | { | |
445 | glyph->metric = pch->pcbmp->metric; | |
446 | return 1; | |
447 | } | |
7b416d42 GV |
448 | |
449 | len = fontp->size - (start - fontp->font); | |
450 | ||
451 | flag = proceed_file_line("DWIDTH", start, &len, &p, &q); | |
452 | if (!flag) | |
453 | return 0; | |
865203c3 | 454 | glyph->metric.dwidth = atoi(p); |
7b416d42 GV |
455 | |
456 | start = q; | |
457 | flag = proceed_file_line("BBX", start, &len, &p, &q); | |
458 | if (!flag) | |
459 | return 0; | |
865203c3 | 460 | glyph->metric.bbw = strtol(p, &start, 10); |
7b416d42 | 461 | p = start; |
865203c3 | 462 | glyph->metric.bbh = strtol(p, &start, 10); |
7b416d42 | 463 | p = start; |
865203c3 | 464 | glyph->metric.bbox = strtol(p, &start, 10); |
7b416d42 | 465 | p = start; |
865203c3 | 466 | glyph->metric.bboy = strtol(p, &start, 10); |
7b416d42 GV |
467 | |
468 | if (size == 0) return 1; | |
469 | ||
470 | start = q; | |
471 | flag = proceed_file_line("BITMAP", start, &len, &p, &q); | |
472 | if (!flag) | |
473 | return 0; | |
474 | ||
264f0aa7 JR |
475 | consumed = 0; |
476 | flag = 0; | |
7b416d42 GV |
477 | p = q; |
478 | bitmapp = glyph->bitmap; | |
264f0aa7 JR |
479 | rowbytes = (glyph->metric.bbw + 7) / 8; |
480 | /* DIB requires DWORD alignment. */ | |
481 | align = sizeof(DWORD) - rowbytes % sizeof(DWORD); | |
482 | consumed = glyph->metric.bbh * (rowbytes + align); | |
483 | glyph->bitmap_size = consumed; | |
484 | glyph->row_byte_size = rowbytes; | |
485 | if (size < consumed) return 0; | |
486 | ||
865203c3 | 487 | for(i = 0;i < glyph->metric.bbh;i++) |
7b416d42 GV |
488 | { |
489 | q = memchr(p, '\n', len); | |
490 | if (!q) return 0; | |
264f0aa7 | 491 | for(j = 0;((q > p) && (j < rowbytes));j++) |
7b416d42 GV |
492 | { |
493 | val1 = GET_HEX_VAL(*p); | |
494 | if (val1 == -1) return 0; | |
495 | p++; | |
496 | val2 = GET_HEX_VAL(*p); | |
497 | if (val2 == -1) return 0; | |
498 | p++; | |
264f0aa7 JR |
499 | val = (unsigned char)((val1 << 4) | val2); |
500 | if (val) flag = 1; | |
501 | *bitmapp++ = val; | |
7b416d42 | 502 | } |
264f0aa7 JR |
503 | for(j = 0;j < align;j++) |
504 | *bitmapp++ = 0x00; | |
7b416d42 GV |
505 | p = q + 1; |
506 | } | |
507 | ||
264f0aa7 JR |
508 | /* If this glyph is white space, return -1. */ |
509 | if (flag == 0) return -1; | |
7b416d42 | 510 | |
264f0aa7 JR |
511 | return consumed; |
512 | } | |
9c332a80 | 513 | |
865203c3 GV |
514 | static |
515 | cache_bitmap* | |
516 | get_bitmap_with_cache(bdffont *fontp, int index) | |
517 | { | |
264f0aa7 | 518 | int bitmap_size, bitmap_real_size; |
865203c3 GV |
519 | font_char *pch; |
520 | cache_bitmap* pcb; | |
264f0aa7 | 521 | unsigned char *pbmp; |
865203c3 GV |
522 | glyph_struct glyph; |
523 | ||
524 | pch = get_cached_font_char(fontp, index); | |
525 | if (pch) | |
526 | { | |
527 | pcb = pch->pcbmp; | |
528 | if (pcb) return pcb; | |
529 | } | |
530 | ||
264f0aa7 | 531 | bitmap_size = ((fontp->urx - fontp->llx) / 8 + 3) * (fontp->ury - fontp->lly) |
865203c3 GV |
532 | + 256; |
533 | glyph.bitmap = (unsigned char*) alloca(sizeof(unsigned char) * bitmap_size); | |
534 | ||
264f0aa7 JR |
535 | bitmap_real_size = w32_get_bdf_glyph(fontp, index, bitmap_size, &glyph); |
536 | ||
537 | if (bitmap_real_size == 0) | |
865203c3 GV |
538 | return NULL; |
539 | ||
540 | pch = get_cached_font_char(fontp, index); | |
541 | if (!pch) return NULL; | |
542 | ||
264f0aa7 | 543 | if (bitmap_real_size > 0) |
9c332a80 | 544 | { |
264f0aa7 JR |
545 | pbmp = (unsigned char*) HeapAlloc(hbdf_bmp_heap, 0, |
546 | bitmap_real_size); | |
547 | if (!pbmp) return NULL; | |
548 | memcpy(pbmp, glyph.bitmap, bitmap_real_size); | |
9c332a80 | 549 | } |
264f0aa7 JR |
550 | else |
551 | pbmp = NULL; /* white space character */ | |
9c332a80 | 552 | |
264f0aa7 JR |
553 | pcb = pcached_bitmap_latest; |
554 | if (pcb->psrc) | |
555 | clear_cached_bitmap_slots(); | |
865203c3 GV |
556 | |
557 | pcb->psrc = pch; | |
558 | pcb->metric = glyph.metric; | |
264f0aa7 JR |
559 | pcb->pbmp = pbmp; |
560 | pcb->bitmap_size = glyph.bitmap_size; | |
561 | pcb->row_byte_size = glyph.row_byte_size; | |
865203c3 GV |
562 | |
563 | pch->pcbmp = pcb; | |
564 | ||
264f0aa7 JR |
565 | pcached_bitmap_latest++; |
566 | if (FONT_CACHE_SLOT_OVER_P(pcached_bitmap_latest)) | |
567 | pcached_bitmap_latest = cached_bitmap_slots; | |
865203c3 GV |
568 | |
569 | return pcb; | |
570 | } | |
571 | ||
264f0aa7 JR |
572 | static HBITMAP |
573 | create_offscreen_bitmap(HDC hdc, int width, int height, unsigned char **bitsp) | |
574 | { | |
575 | HBITMAP hBMP; | |
576 | struct { | |
577 | BITMAPINFOHEADER h; | |
578 | RGBQUAD c[2]; | |
579 | } info; | |
580 | ||
581 | memset(&info, 0, sizeof(info)); | |
582 | info.h.biSize = sizeof(BITMAPINFOHEADER); | |
583 | info.h.biWidth = width; | |
584 | info.h.biHeight = -height; | |
585 | info.h.biPlanes = 1; | |
586 | info.h.biBitCount = 1; | |
587 | info.h.biCompression = BI_RGB; | |
588 | info.c[1].rgbRed = info.c[1].rgbGreen = info.c[1].rgbBlue = 255; | |
589 | ||
590 | return CreateDIBSection(hdc, (LPBITMAPINFO)&info, | |
591 | DIB_RGB_COLORS, bitsp, NULL, 0); | |
592 | } | |
593 | ||
594 | glyph_metric * | |
595 | w32_BDF_TextMetric(bdffont *fontp, unsigned char *text, int dim) | |
596 | { | |
597 | int index; | |
598 | cache_bitmap *pcb; | |
599 | ||
600 | if (dim == 1) | |
601 | index = *text; | |
602 | else | |
603 | index = MAKELENDSHORT(text[1], text[0]); | |
604 | ||
605 | pcb = get_bitmap_with_cache(fontp, index); | |
606 | if (!pcb) | |
607 | return NULL; | |
608 | ||
609 | return &(pcb->metric); | |
610 | } | |
611 | ||
7b416d42 GV |
612 | int |
613 | w32_BDF_TextOut(bdffont *fontp, HDC hdc, int left, | |
614 | int top, unsigned char *text, int dim, int bytelen, | |
615 | int fixed_pitch_size) | |
616 | { | |
865203c3 | 617 | int index, btop; |
7b416d42 | 618 | unsigned char *textp; |
865203c3 | 619 | cache_bitmap *pcb; |
7b416d42 | 620 | HBRUSH hFgBrush, hOrgBrush; |
264f0aa7 | 621 | HANDLE horgobj; |
7b416d42 | 622 | UINT textalign; |
264f0aa7 JR |
623 | int width, height; |
624 | HDC hCompatDC; | |
625 | int ret = 1; | |
626 | static HBITMAP hBMP = 0; | |
627 | static HDC DIBsection_hdc = 0; | |
628 | static int DIBsection_width, DIBsection_height; | |
629 | static unsigned char *bits; | |
7b416d42 | 630 | |
7b416d42 | 631 | hCompatDC = CreateCompatibleDC(hdc); |
264f0aa7 JR |
632 | if (!hCompatDC) |
633 | return 0; | |
7b416d42 GV |
634 | |
635 | textalign = GetTextAlign(hdc); | |
636 | ||
7b416d42 GV |
637 | hFgBrush = CreateSolidBrush(GetTextColor(hdc)); |
638 | hOrgBrush = SelectObject(hdc, hFgBrush); | |
7b416d42 GV |
639 | |
640 | textp = text; | |
264f0aa7 | 641 | |
7b416d42 GV |
642 | while(bytelen > 0) |
643 | { | |
644 | if (dim == 1) | |
645 | { | |
646 | index = *textp++; | |
647 | bytelen--; | |
648 | } | |
649 | else | |
650 | { | |
651 | bytelen -= 2; | |
652 | if (bytelen < 0) break; | |
691a3cb7 | 653 | index = MAKELENDSHORT(textp[0], textp[1]); |
7b416d42 GV |
654 | textp += 2; |
655 | } | |
865203c3 GV |
656 | pcb = get_bitmap_with_cache(fontp, index); |
657 | if (!pcb) | |
7b416d42 | 658 | { |
264f0aa7 JR |
659 | ret = 0; |
660 | break; | |
7b416d42 | 661 | } |
264f0aa7 JR |
662 | if (pcb->pbmp) |
663 | { | |
664 | width = pcb->metric.bbw; | |
665 | height = pcb->metric.bbh; | |
666 | ||
667 | if (!(hBMP | |
668 | && (DIBsection_hdc == hdc) | |
669 | && (DIBsection_width == width) | |
670 | && (DIBsection_height == height))) | |
671 | { | |
672 | if (hBMP) DeleteObject(hBMP); | |
673 | hBMP = create_offscreen_bitmap(hdc, width, height, &bits); | |
674 | DIBsection_hdc = hdc; | |
675 | DIBsection_width = width; | |
676 | DIBsection_height = height; | |
677 | if (!hBMP) return 0; | |
7b416d42 | 678 | } |
264f0aa7 JR |
679 | |
680 | memcpy(bits, pcb->pbmp, pcb->bitmap_size); | |
865203c3 | 681 | |
7b416d42 | 682 | if (textalign & TA_BASELINE) |
865203c3 | 683 | btop = top - (pcb->metric.bbh + pcb->metric.bboy); |
7b416d42 | 684 | else if (textalign & TA_BOTTOM) |
865203c3 | 685 | btop = top - pcb->metric.bbh; |
7b416d42 | 686 | else |
7b416d42 | 687 | btop = top; |
7b416d42 | 688 | |
7b416d42 | 689 | horgobj = SelectObject(hCompatDC, hBMP); |
264f0aa7 JR |
690 | BitBlt(hdc, left, btop, width, height, hCompatDC, 0, 0, 0xE20746); |
691 | SelectObject(hCompatDC, horgobj); | |
692 | } | |
693 | ||
7b416d42 GV |
694 | if (fixed_pitch_size) |
695 | left += fixed_pitch_size; | |
696 | else | |
865203c3 | 697 | left += pcb->metric.dwidth; |
7b416d42 | 698 | } |
264f0aa7 JR |
699 | |
700 | DeleteDC(hCompatDC); | |
701 | ||
7b416d42 GV |
702 | SelectObject(hdc, hOrgBrush); |
703 | DeleteObject(hFgBrush); | |
7b416d42 | 704 | |
264f0aa7 | 705 | return ret; |
7b416d42 GV |
706 | } |
707 | ||
708 | struct font_info *w32_load_bdf_font (struct frame *f, char *fontname, | |
709 | int size, char* filename) | |
710 | { | |
711 | struct w32_display_info *dpyinfo = FRAME_W32_DISPLAY_INFO (f); | |
712 | struct font_info *fontp; | |
713 | XFontStruct *font; | |
714 | bdffont* bdf_font; | |
715 | ||
716 | bdf_font = w32_init_bdf_font (filename); | |
717 | ||
718 | if (!bdf_font) return NULL; | |
719 | ||
720 | font = (XFontStruct *) xmalloc (sizeof (XFontStruct)); | |
00422310 | 721 | bzero (font, sizeof (*font)); |
7b416d42 GV |
722 | |
723 | font->bdf = bdf_font; | |
724 | font->hfont = 0; | |
725 | ||
691a3cb7 JR |
726 | /* NTEMACS_TODO: Better way of determining if a font is double byte |
727 | or not. */ | |
728 | font->double_byte_p = bdf_font->nchars > 255 ? 1 : 0; | |
ad784d76 | 729 | |
00422310 AI |
730 | w32_cache_char_metrics (font); |
731 | ||
7b416d42 GV |
732 | /* Do we need to create the table? */ |
733 | if (dpyinfo->font_table_size == 0) | |
734 | { | |
735 | dpyinfo->font_table_size = 16; | |
736 | dpyinfo->font_table | |
737 | = (struct font_info *) xmalloc (dpyinfo->font_table_size | |
738 | * sizeof (struct font_info)); | |
739 | } | |
740 | /* Do we need to grow the table? */ | |
741 | else if (dpyinfo->n_fonts | |
742 | >= dpyinfo->font_table_size) | |
743 | { | |
744 | dpyinfo->font_table_size *= 2; | |
745 | dpyinfo->font_table | |
746 | = (struct font_info *) xrealloc (dpyinfo->font_table, | |
747 | (dpyinfo->font_table_size | |
748 | * sizeof (struct font_info))); | |
749 | } | |
750 | ||
751 | fontp = dpyinfo->font_table + dpyinfo->n_fonts; | |
752 | ||
753 | /* Now fill in the slots of *FONTP. */ | |
754 | BLOCK_INPUT; | |
755 | fontp->font = font; | |
756 | fontp->font_idx = dpyinfo->n_fonts; | |
757 | fontp->name = (char *) xmalloc (strlen (fontname) + 1); | |
758 | bcopy (fontname, fontp->name, strlen (fontname) + 1); | |
759 | fontp->full_name = fontp->name; | |
760 | fontp->size = FONT_WIDTH (font); | |
761 | fontp->height = FONT_HEIGHT (font); | |
762 | ||
763 | /* The slot `encoding' specifies how to map a character | |
764 | code-points (0x20..0x7F or 0x2020..0x7F7F) of each charset to | |
765 | the font code-points (0:0x20..0x7F, 1:0xA0..0xFF, 0:0x2020..0x7F7F, | |
766 | the font code-points (0:0x20..0x7F, 1:0xA0..0xFF, | |
767 | 0:0x2020..0x7F7F, 1:0xA0A0..0xFFFF, 3:0x20A0..0x7FFF, or | |
768 | 2:0xA020..0xFF7F). For the moment, we don't know which charset | |
769 | uses this font. So, we set informatoin in fontp->encoding[1] | |
770 | which is never used by any charset. If mapping can't be | |
771 | decided, set FONT_ENCODING_NOT_DECIDED. */ | |
772 | fontp->encoding[1] = FONT_ENCODING_NOT_DECIDED; | |
773 | fontp->baseline_offset = bdf_font->yoffset; | |
774 | fontp->relative_compose = bdf_font->relative_compose; | |
775 | fontp->default_ascent = bdf_font->default_ascent; | |
776 | ||
777 | UNBLOCK_INPUT; | |
778 | dpyinfo->n_fonts++; | |
779 | return fontp; | |
780 | } | |
781 | ||
782 | /* Check a file for an XFLD string describing it. */ | |
783 | int w32_BDF_to_x_font (char *file, char* xstr, int len) | |
784 | { | |
785 | HANDLE hfile, hfilemap; | |
786 | BY_HANDLE_FILE_INFORMATION fileinfo; | |
cc26af75 | 787 | char *font, *start, *p, *q; |
7b416d42 GV |
788 | int flag, size, retval = 0; |
789 | ||
790 | hfile = CreateFile (file, GENERIC_READ, FILE_SHARE_READ, NULL, | |
791 | OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); | |
792 | if (hfile == INVALID_HANDLE_VALUE) return 0; | |
793 | if (!GetFileInformationByHandle(hfile, &fileinfo) || | |
794 | (fileinfo.nFileSizeHigh != 0) || | |
795 | (fileinfo.nFileSizeLow > BDF_FILE_SIZE_MAX)) | |
796 | { | |
797 | CloseHandle (hfile); | |
798 | return 0; | |
799 | } | |
800 | size = fileinfo.nFileSizeLow; | |
801 | ||
802 | hfilemap = CreateFileMapping (hfile, NULL, PAGE_READONLY, 0, 0, NULL); | |
803 | if (hfilemap == INVALID_HANDLE_VALUE) | |
804 | { | |
805 | CloseHandle (hfile); | |
806 | return 0; | |
807 | } | |
808 | ||
809 | font = MapViewOfFile (hfilemap, FILE_MAP_READ, 0, 0, 0); | |
810 | if (!font) | |
811 | { | |
812 | CloseHandle (hfile); | |
813 | CloseHandle (hfilemap); | |
814 | return 0; | |
815 | } | |
816 | start = font; | |
817 | ||
818 | flag = proceed_file_line ("FONT ", start, &size, &p, &q); | |
819 | if (flag) | |
820 | { | |
821 | /* If font provides a description of itself, check it is a | |
822 | full XLFD before accepting it. */ | |
823 | int count = 0; | |
824 | char *s; | |
825 | ||
826 | for (s = p; s < q; s++) | |
827 | if (*s == '\n') | |
828 | break; | |
829 | else if (*s == '-') | |
830 | count++; | |
831 | if (count == 14 && q - p - 1 <= len) | |
832 | { | |
833 | strncpy (xstr, p, q-p-1); | |
834 | xstr[q-p-1] = '\0'; | |
835 | /* Files may have DOS line ends (ie still ^M on end). */ | |
836 | if (iscntrl(xstr[q-p-2])) | |
837 | xstr[q-p-2] = '\0'; | |
838 | ||
839 | retval = 1; | |
840 | } | |
841 | } | |
842 | CloseHandle (hfile); | |
843 | CloseHandle (hfilemap); | |
844 | return retval; | |
845 | } |