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24330d27 | 1 | /* |
4bd4418a | 2 | * $RCSId: xc/lib/fontconfig/src/fcmatch.c,v 1.20 2002/08/31 22:17:32 keithp Exp $ |
24330d27 | 3 | * |
46b51147 | 4 | * Copyright © 2000 Keith Packard |
24330d27 KP |
5 | * |
6 | * Permission to use, copy, modify, distribute, and sell this software and its | |
7 | * documentation for any purpose is hereby granted without fee, provided that | |
8 | * the above copyright notice appear in all copies and that both that | |
9 | * copyright notice and this permission notice appear in supporting | |
10 | * documentation, and that the name of Keith Packard not be used in | |
11 | * advertising or publicity pertaining to distribution of the software without | |
12 | * specific, written prior permission. Keith Packard makes no | |
13 | * representations about the suitability of this software for any purpose. It | |
14 | * is provided "as is" without express or implied warranty. | |
15 | * | |
16 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO | |
18 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
22 | * PERFORMANCE OF THIS SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include <string.h> | |
26 | #include <ctype.h> | |
27 | #include "fcint.h" | |
28 | #include <stdio.h> | |
29 | ||
30 | static double | |
4262e0b3 | 31 | FcCompareNumber (char *object, FcValue *value1, FcValue *value2) |
24330d27 | 32 | { |
2d39321f | 33 | double v1, v2, v; |
24330d27 | 34 | |
4262e0b3 | 35 | switch (value1->type) { |
2d39321f | 36 | case FcTypeInteger: |
4262e0b3 | 37 | v1 = (double) value1->u.i; |
2d39321f KP |
38 | break; |
39 | case FcTypeDouble: | |
4262e0b3 | 40 | v1 = value1->u.d; |
2d39321f KP |
41 | break; |
42 | default: | |
24330d27 | 43 | return -1.0; |
2d39321f | 44 | } |
4262e0b3 | 45 | switch (value2->type) { |
2d39321f | 46 | case FcTypeInteger: |
4262e0b3 | 47 | v2 = (double) value2->u.i; |
2d39321f KP |
48 | break; |
49 | case FcTypeDouble: | |
4262e0b3 | 50 | v2 = value2->u.d; |
2d39321f KP |
51 | break; |
52 | default: | |
53 | return -1.0; | |
54 | } | |
55 | v = v2 - v1; | |
24330d27 KP |
56 | if (v < 0) |
57 | v = -v; | |
58 | return (double) v; | |
59 | } | |
60 | ||
61 | static double | |
4262e0b3 | 62 | FcCompareString (char *object, FcValue *v1, FcValue *v2) |
24330d27 | 63 | { |
4262e0b3 | 64 | FcValue value1 = FcValueCanonicalize(v1), value2 = FcValueCanonicalize(v2); |
24330d27 KP |
65 | if (value2.type != FcTypeString || value1.type != FcTypeString) |
66 | return -1.0; | |
4262e0b3 | 67 | return (double) FcStrCmpIgnoreCase (value1.u.s, value2.u.s) != 0; |
24330d27 KP |
68 | } |
69 | ||
82f4243f | 70 | static double |
4262e0b3 | 71 | FcCompareFamily (char *object, FcValue *v1, FcValue *v2) |
82f4243f | 72 | { |
4262e0b3 | 73 | FcValue value1 = FcValueCanonicalize(v1), value2 = FcValueCanonicalize(v2); |
82f4243f KP |
74 | if (value2.type != FcTypeString || value1.type != FcTypeString) |
75 | return -1.0; | |
4262e0b3 | 76 | return (double) FcStrCmpIgnoreBlanksAndCase (value1.u.s, value2.u.s) != 0; |
82f4243f KP |
77 | } |
78 | ||
79 | static double | |
4262e0b3 | 80 | FcCompareLang (char *object, FcValue *v1, FcValue *v2) |
82f4243f KP |
81 | { |
82 | FcLangResult result; | |
4262e0b3 | 83 | FcValue value1 = FcValueCanonicalize(v1), value2 = FcValueCanonicalize(v2); |
82f4243f | 84 | |
d8d73958 KP |
85 | switch (value1.type) { |
86 | case FcTypeLangSet: | |
87 | switch (value2.type) { | |
88 | case FcTypeLangSet: | |
4262e0b3 | 89 | result = FcLangSetCompare (value1.u.l, value2.u.l); |
d8d73958 KP |
90 | break; |
91 | case FcTypeString: | |
4262e0b3 PL |
92 | result = FcLangSetHasLang (value1.u.l, |
93 | value2.u.s); | |
d8d73958 KP |
94 | break; |
95 | default: | |
96 | return -1.0; | |
97 | } | |
98 | break; | |
99 | case FcTypeString: | |
100 | switch (value2.type) { | |
101 | case FcTypeLangSet: | |
4262e0b3 | 102 | result = FcLangSetHasLang (value2.u.l, value1.u.s); |
d8d73958 KP |
103 | break; |
104 | case FcTypeString: | |
4262e0b3 PL |
105 | result = FcLangCompare (value1.u.s, |
106 | value2.u.s); | |
d8d73958 KP |
107 | break; |
108 | default: | |
109 | return -1.0; | |
110 | } | |
111 | break; | |
112 | default: | |
82f4243f | 113 | return -1.0; |
d8d73958 | 114 | } |
82f4243f KP |
115 | switch (result) { |
116 | case FcLangEqual: | |
117 | return 0; | |
118 | case FcLangDifferentCountry: | |
119 | return 1; | |
120 | case FcLangDifferentLang: | |
121 | default: | |
122 | return 2; | |
123 | } | |
124 | } | |
125 | ||
24330d27 | 126 | static double |
4262e0b3 | 127 | FcCompareBool (char *object, FcValue *value1, FcValue *value2) |
24330d27 | 128 | { |
4262e0b3 | 129 | if (value2->type != FcTypeBool || value1->type != FcTypeBool) |
24330d27 | 130 | return -1.0; |
4262e0b3 | 131 | return (double) value2->u.b != value1->u.b; |
24330d27 KP |
132 | } |
133 | ||
134 | static double | |
4262e0b3 | 135 | FcCompareCharSet (char *object, FcValue *v1, FcValue *v2) |
24330d27 | 136 | { |
4262e0b3 PL |
137 | FcValue value1 = FcValueCanonicalize(v1), value2 = FcValueCanonicalize(v2); |
138 | ||
24330d27 KP |
139 | if (value2.type != FcTypeCharSet || value1.type != FcTypeCharSet) |
140 | return -1.0; | |
4262e0b3 | 141 | return (double) FcCharSetSubtractCount (value1.u.c, value2.u.c); |
24330d27 KP |
142 | } |
143 | ||
144 | static double | |
4262e0b3 | 145 | FcCompareSize (char *object, FcValue *value1, FcValue *value2) |
24330d27 KP |
146 | { |
147 | double v1, v2, v; | |
148 | ||
4262e0b3 | 149 | switch (value1->type) { |
24330d27 | 150 | case FcTypeInteger: |
4262e0b3 | 151 | v1 = value1->u.i; |
24330d27 KP |
152 | break; |
153 | case FcTypeDouble: | |
4262e0b3 | 154 | v1 = value1->u.d; |
24330d27 KP |
155 | break; |
156 | default: | |
157 | return -1; | |
158 | } | |
4262e0b3 | 159 | switch (value2->type) { |
24330d27 | 160 | case FcTypeInteger: |
4262e0b3 | 161 | v2 = value2->u.i; |
24330d27 KP |
162 | break; |
163 | case FcTypeDouble: | |
4262e0b3 | 164 | v2 = value2->u.d; |
24330d27 KP |
165 | break; |
166 | default: | |
167 | return -1; | |
168 | } | |
169 | if (v2 == 0) | |
170 | return 0; | |
171 | v = v2 - v1; | |
172 | if (v < 0) | |
173 | v = -v; | |
174 | return v; | |
175 | } | |
176 | ||
4c003605 KP |
177 | typedef struct _FcMatcher { |
178 | char *object; | |
4262e0b3 | 179 | double (*compare) (char *object, FcValue *value1, FcValue *value2); |
4c003605 KP |
180 | int strong, weak; |
181 | } FcMatcher; | |
182 | ||
24330d27 KP |
183 | /* |
184 | * Order is significant, it defines the precedence of | |
185 | * each value, earlier values are more significant than | |
186 | * later values | |
187 | */ | |
188 | static FcMatcher _FcMatchers [] = { | |
4c003605 KP |
189 | { FC_FOUNDRY, FcCompareString, 0, 0 }, |
190 | #define MATCH_FOUNDRY 0 | |
5cf8c536 | 191 | #define MATCH_FOUNDRY_INDEX 0 |
bc9469ba | 192 | |
4c003605 KP |
193 | { FC_CHARSET, FcCompareCharSet, 1, 1 }, |
194 | #define MATCH_CHARSET 1 | |
5cf8c536 | 195 | #define MATCH_CHARSET_INDEX 1 |
bc9469ba | 196 | |
82f4243f | 197 | { FC_FAMILY, FcCompareFamily, 2, 4 }, |
4c003605 | 198 | #define MATCH_FAMILY 2 |
5cf8c536 KP |
199 | #define MATCH_FAMILY_STRONG_INDEX 2 |
200 | #define MATCH_FAMILY_WEAK_INDEX 4 | |
bc9469ba | 201 | |
82f4243f | 202 | { FC_LANG, FcCompareLang, 3, 3 }, |
4c003605 | 203 | #define MATCH_LANG 3 |
5cf8c536 | 204 | #define MATCH_LANG_INDEX 3 |
bc9469ba | 205 | |
2d39321f | 206 | { FC_SPACING, FcCompareNumber, 5, 5 }, |
4c003605 | 207 | #define MATCH_SPACING 4 |
5cf8c536 | 208 | #define MATCH_SPACING_INDEX 5 |
bc9469ba | 209 | |
4c003605 KP |
210 | { FC_PIXEL_SIZE, FcCompareSize, 6, 6 }, |
211 | #define MATCH_PIXEL_SIZE 5 | |
5cf8c536 | 212 | #define MATCH_PIXEL_SIZE_INDEX 6 |
bc9469ba | 213 | |
4c003605 KP |
214 | { FC_STYLE, FcCompareString, 7, 7 }, |
215 | #define MATCH_STYLE 6 | |
5cf8c536 | 216 | #define MATCH_STYLE_INDEX 7 |
bc9469ba | 217 | |
2d39321f | 218 | { FC_SLANT, FcCompareNumber, 8, 8 }, |
4c003605 | 219 | #define MATCH_SLANT 7 |
5cf8c536 | 220 | #define MATCH_SLANT_INDEX 8 |
bc9469ba | 221 | |
2d39321f | 222 | { FC_WEIGHT, FcCompareNumber, 9, 9 }, |
4c003605 | 223 | #define MATCH_WEIGHT 8 |
5cf8c536 | 224 | #define MATCH_WEIGHT_INDEX 9 |
f534109f | 225 | |
81fa16c3 KP |
226 | { FC_WIDTH, FcCompareNumber, 10, 10 }, |
227 | #define MATCH_WIDTH 9 | |
5cf8c536 | 228 | #define MATCH_WIDTH_INDEX 10 |
bc9469ba | 229 | |
81fa16c3 KP |
230 | { FC_ANTIALIAS, FcCompareBool, 11, 11 }, |
231 | #define MATCH_ANTIALIAS 10 | |
5cf8c536 | 232 | #define MATCH_ANTIALIAS_INDEX 11 |
bc9469ba | 233 | |
81fa16c3 KP |
234 | { FC_RASTERIZER, FcCompareString, 12, 12 }, |
235 | #define MATCH_RASTERIZER 11 | |
5cf8c536 KP |
236 | #define MATCH_RASTERIZER_INDEX 12 |
237 | ||
81fa16c3 KP |
238 | { FC_OUTLINE, FcCompareBool, 13, 13 }, |
239 | #define MATCH_OUTLINE 12 | |
5cf8c536 | 240 | #define MATCH_OUTLINE_INDEX 13 |
a342e87d | 241 | |
81fa16c3 KP |
242 | { FC_FONTVERSION, FcCompareNumber, 14, 14 }, |
243 | #define MATCH_FONTVERSION 13 | |
5cf8c536 | 244 | #define MATCH_FONTVERSION_INDEX 14 |
24330d27 KP |
245 | }; |
246 | ||
81fa16c3 | 247 | #define NUM_MATCH_VALUES 15 |
24330d27 KP |
248 | |
249 | static FcBool | |
250 | FcCompareValueList (const char *object, | |
cd2ec1a9 PL |
251 | FcValueListPtr v1orig, /* pattern */ |
252 | FcValueListPtr v2orig, /* target */ | |
24330d27 KP |
253 | FcValue *bestValue, |
254 | double *value, | |
255 | FcResult *result) | |
256 | { | |
cd2ec1a9 | 257 | FcValueListPtr v1, v2; |
4c003605 | 258 | double v, best, bestStrong, bestWeak; |
24330d27 | 259 | int i; |
4c003605 | 260 | int j; |
24330d27 | 261 | |
bc9469ba KP |
262 | /* |
263 | * Locate the possible matching entry by examining the | |
264 | * first few characters in object | |
265 | */ | |
266 | i = -1; | |
267 | switch (FcToLower (object[0])) { | |
268 | case 'f': | |
269 | switch (FcToLower (object[1])) { | |
270 | case 'o': | |
a342e87d KP |
271 | switch (FcToLower (object[2])) { |
272 | case 'u': | |
273 | i = MATCH_FOUNDRY; break; | |
274 | case 'n': | |
275 | i = MATCH_FONTVERSION; break; | |
276 | } | |
277 | break; | |
bc9469ba KP |
278 | case 'a': |
279 | i = MATCH_FAMILY; break; | |
280 | } | |
281 | break; | |
282 | case 'c': | |
283 | i = MATCH_CHARSET; break; | |
284 | case 'a': | |
285 | i = MATCH_ANTIALIAS; break; | |
286 | case 'l': | |
287 | i = MATCH_LANG; break; | |
288 | case 's': | |
289 | switch (FcToLower (object[1])) { | |
290 | case 'p': | |
291 | i = MATCH_SPACING; break; | |
292 | case 't': | |
293 | i = MATCH_STYLE; break; | |
294 | case 'l': | |
295 | i = MATCH_SLANT; break; | |
296 | } | |
297 | break; | |
298 | case 'p': | |
299 | i = MATCH_PIXEL_SIZE; break; | |
300 | case 'w': | |
81fa16c3 KP |
301 | switch (FcToLower (object[1])) { |
302 | case 'i': | |
303 | i = MATCH_WIDTH; break; | |
304 | case 'e': | |
305 | i = MATCH_WEIGHT; break; | |
306 | } | |
307 | break; | |
bc9469ba KP |
308 | case 'r': |
309 | i = MATCH_RASTERIZER; break; | |
310 | case 'o': | |
311 | i = MATCH_OUTLINE; break; | |
312 | } | |
313 | if (i == -1 || | |
314 | FcStrCmpIgnoreCase ((FcChar8 *) _FcMatchers[i].object, | |
315 | (FcChar8 *) object) != 0) | |
316 | { | |
317 | if (bestValue) | |
4262e0b3 | 318 | *bestValue = FcValueCanonicalize(&FcValueListPtrU(v2orig)->value); |
bc9469ba KP |
319 | return FcTrue; |
320 | } | |
321 | #if 0 | |
24330d27 KP |
322 | for (i = 0; i < NUM_MATCHER; i++) |
323 | { | |
ccb3e93b KP |
324 | if (!FcStrCmpIgnoreCase ((FcChar8 *) _FcMatchers[i].object, |
325 | (FcChar8 *) object)) | |
24330d27 KP |
326 | break; |
327 | } | |
328 | if (i == NUM_MATCHER) | |
329 | { | |
330 | if (bestValue) | |
331 | *bestValue = v2orig->value; | |
332 | return FcTrue; | |
333 | } | |
bc9469ba | 334 | #endif |
24330d27 | 335 | best = 1e99; |
4c003605 KP |
336 | bestStrong = 1e99; |
337 | bestWeak = 1e99; | |
24330d27 | 338 | j = 0; |
cd2ec1a9 PL |
339 | for (v1 = v1orig; FcValueListPtrU(v1); |
340 | v1 = FcValueListPtrU(v1)->next) | |
24330d27 | 341 | { |
cd2ec1a9 PL |
342 | for (v2 = v2orig; FcValueListPtrU(v2); |
343 | v2 = FcValueListPtrU(v2)->next) | |
24330d27 KP |
344 | { |
345 | v = (*_FcMatchers[i].compare) (_FcMatchers[i].object, | |
4262e0b3 PL |
346 | &FcValueListPtrU(v1)->value, |
347 | &FcValueListPtrU(v2)->value); | |
24330d27 KP |
348 | if (v < 0) |
349 | { | |
350 | *result = FcResultTypeMismatch; | |
351 | return FcFalse; | |
352 | } | |
353 | if (FcDebug () & FC_DBG_MATCHV) | |
354 | printf (" v %g j %d ", v, j); | |
355 | v = v * 100 + j; | |
356 | if (v < best) | |
357 | { | |
358 | if (bestValue) | |
4262e0b3 | 359 | *bestValue = FcValueCanonicalize(&FcValueListPtrU(v2)->value); |
24330d27 KP |
360 | best = v; |
361 | } | |
cd2ec1a9 | 362 | if (FcValueListPtrU(v1)->binding == FcValueBindingStrong) |
4c003605 KP |
363 | { |
364 | if (v < bestStrong) | |
365 | bestStrong = v; | |
366 | } | |
367 | else | |
368 | { | |
369 | if (v < bestWeak) | |
370 | bestWeak = v; | |
371 | } | |
24330d27 KP |
372 | } |
373 | j++; | |
374 | } | |
375 | if (FcDebug () & FC_DBG_MATCHV) | |
376 | { | |
377 | printf (" %s: %g ", object, best); | |
378 | FcValueListPrint (v1orig); | |
379 | printf (", "); | |
380 | FcValueListPrint (v2orig); | |
381 | printf ("\n"); | |
382 | } | |
d0f07b8d | 383 | if (value) |
4c003605 KP |
384 | { |
385 | int weak = _FcMatchers[i].weak; | |
386 | int strong = _FcMatchers[i].strong; | |
387 | if (weak == strong) | |
388 | value[strong] += best; | |
389 | else | |
390 | { | |
391 | value[weak] += bestWeak; | |
392 | value[strong] += bestStrong; | |
393 | } | |
394 | } | |
24330d27 KP |
395 | return FcTrue; |
396 | } | |
397 | ||
398 | /* | |
399 | * Return a value indicating the distance between the two lists of | |
400 | * values | |
401 | */ | |
402 | ||
403 | static FcBool | |
404 | FcCompare (FcPattern *pat, | |
405 | FcPattern *fnt, | |
406 | double *value, | |
407 | FcResult *result) | |
408 | { | |
409 | int i, i1, i2; | |
410 | ||
4c003605 | 411 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
412 | value[i] = 0.0; |
413 | ||
bc9469ba KP |
414 | i1 = 0; |
415 | i2 = 0; | |
416 | while (i1 < pat->num && i2 < fnt->num) | |
24330d27 | 417 | { |
cd2ec1a9 PL |
418 | i = FcObjectPtrCompare((FcPatternEltU(pat->elts)+i1)->object, |
419 | (FcPatternEltU(fnt->elts)+i2)->object); | |
bc9469ba KP |
420 | if (i > 0) |
421 | i2++; | |
422 | else if (i < 0) | |
423 | i1++; | |
424 | else | |
24330d27 | 425 | { |
cd2ec1a9 PL |
426 | if (!FcCompareValueList (FcObjectPtrU((FcPatternEltU(pat->elts)+i1)->object), |
427 | (FcPatternEltU(pat->elts)+i1)->values, | |
428 | (FcPatternEltU(fnt->elts)+i2)->values, | |
bc9469ba KP |
429 | 0, |
430 | value, | |
431 | result)) | |
432 | return FcFalse; | |
433 | i1++; | |
434 | i2++; | |
24330d27 | 435 | } |
bc9469ba KP |
436 | } |
437 | return FcTrue; | |
24330d27 | 438 | #if 0 |
bc9469ba KP |
439 | for (i1 = 0; i1 < pat->num; i1++) |
440 | { | |
441 | for (i2 = 0; i2 < fnt->num; i2++) | |
24330d27 | 442 | { |
bc9469ba | 443 | if (!strcmp (pat->elts[i1].object, fnt->elts[i2].object)) |
24330d27 | 444 | { |
bc9469ba | 445 | break; |
24330d27 KP |
446 | } |
447 | } | |
24330d27 KP |
448 | } |
449 | return FcTrue; | |
bc9469ba | 450 | #endif |
24330d27 KP |
451 | } |
452 | ||
216fac98 KP |
453 | FcPattern * |
454 | FcFontRenderPrepare (FcConfig *config, | |
455 | FcPattern *pat, | |
456 | FcPattern *font) | |
457 | { | |
458 | FcPattern *new; | |
459 | int i; | |
460 | FcPatternElt *fe, *pe; | |
461 | FcValue v; | |
216fac98 KP |
462 | FcResult result; |
463 | ||
464 | new = FcPatternCreate (); | |
465 | if (!new) | |
466 | return 0; | |
467 | for (i = 0; i < font->num; i++) | |
468 | { | |
cd2ec1a9 PL |
469 | fe = FcPatternEltU(font->elts)+i; |
470 | pe = FcPatternFindElt (pat, FcObjectPtrU(fe->object)); | |
216fac98 KP |
471 | if (pe) |
472 | { | |
cd2ec1a9 | 473 | if (!FcCompareValueList (FcObjectPtrU(pe->object), pe->values, |
938bc633 | 474 | fe->values, &v, 0, &result)) |
216fac98 KP |
475 | { |
476 | FcPatternDestroy (new); | |
477 | return 0; | |
478 | } | |
479 | } | |
480 | else | |
4262e0b3 | 481 | v = FcValueCanonicalize(&FcValueListPtrU(fe->values)->value); |
cd2ec1a9 | 482 | FcPatternAdd (new, FcObjectPtrU(fe->object), v, FcFalse); |
216fac98 KP |
483 | } |
484 | for (i = 0; i < pat->num; i++) | |
485 | { | |
cd2ec1a9 PL |
486 | pe = FcPatternEltU(pat->elts)+i; |
487 | fe = FcPatternFindElt (font, FcObjectPtrU(pe->object)); | |
216fac98 | 488 | if (!fe) |
cd2ec1a9 | 489 | FcPatternAdd (new, FcObjectPtrU(pe->object), |
4262e0b3 | 490 | FcValueCanonicalize(&FcValueListPtrU(pe->values)->value), FcTrue); |
216fac98 | 491 | } |
fa244f3d | 492 | FcConfigSubstituteWithPat (config, new, pat, FcMatchFont); |
216fac98 KP |
493 | return new; |
494 | } | |
495 | ||
24330d27 | 496 | FcPattern * |
80c053b7 KP |
497 | FcFontSetMatch (FcConfig *config, |
498 | FcFontSet **sets, | |
499 | int nsets, | |
500 | FcPattern *p, | |
501 | FcResult *result) | |
24330d27 | 502 | { |
4c003605 | 503 | double score[NUM_MATCH_VALUES], bestscore[NUM_MATCH_VALUES]; |
24330d27 KP |
504 | int f; |
505 | FcFontSet *s; | |
506 | FcPattern *best; | |
24330d27 | 507 | int i; |
216fac98 | 508 | int set; |
24330d27 | 509 | |
4c003605 | 510 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
511 | bestscore[i] = 0; |
512 | best = 0; | |
513 | if (FcDebug () & FC_DBG_MATCH) | |
514 | { | |
515 | printf ("Match "); | |
516 | FcPatternPrint (p); | |
517 | } | |
518 | if (!config) | |
519 | { | |
520 | config = FcConfigGetCurrent (); | |
521 | if (!config) | |
ec0c740e KP |
522 | { |
523 | *result = FcResultOutOfMemory; | |
24330d27 | 524 | return 0; |
ec0c740e | 525 | } |
24330d27 | 526 | } |
80c053b7 | 527 | for (set = 0; set < nsets; set++) |
24330d27 | 528 | { |
80c053b7 | 529 | s = sets[set]; |
24330d27 KP |
530 | if (!s) |
531 | continue; | |
532 | for (f = 0; f < s->nfont; f++) | |
533 | { | |
534 | if (FcDebug () & FC_DBG_MATCHV) | |
535 | { | |
536 | printf ("Font %d ", f); | |
537 | FcPatternPrint (s->fonts[f]); | |
538 | } | |
539 | if (!FcCompare (p, s->fonts[f], score, result)) | |
540 | return 0; | |
541 | if (FcDebug () & FC_DBG_MATCHV) | |
542 | { | |
543 | printf ("Score"); | |
4c003605 | 544 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
545 | { |
546 | printf (" %g", score[i]); | |
547 | } | |
548 | printf ("\n"); | |
549 | } | |
4c003605 | 550 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
551 | { |
552 | if (best && bestscore[i] < score[i]) | |
553 | break; | |
554 | if (!best || score[i] < bestscore[i]) | |
555 | { | |
4c003605 | 556 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
557 | bestscore[i] = score[i]; |
558 | best = s->fonts[f]; | |
559 | break; | |
560 | } | |
561 | } | |
562 | } | |
563 | } | |
564 | if (FcDebug () & FC_DBG_MATCH) | |
565 | { | |
566 | printf ("Best score"); | |
4c003605 | 567 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
24330d27 KP |
568 | printf (" %g", bestscore[i]); |
569 | FcPatternPrint (best); | |
570 | } | |
571 | if (!best) | |
572 | { | |
573 | *result = FcResultNoMatch; | |
574 | return 0; | |
575 | } | |
216fac98 | 576 | return FcFontRenderPrepare (config, p, best); |
24330d27 | 577 | } |
80c053b7 KP |
578 | |
579 | FcPattern * | |
580 | FcFontMatch (FcConfig *config, | |
581 | FcPattern *p, | |
582 | FcResult *result) | |
583 | { | |
584 | FcFontSet *sets[2]; | |
585 | int nsets; | |
586 | ||
587 | if (!config) | |
588 | { | |
589 | config = FcConfigGetCurrent (); | |
590 | if (!config) | |
591 | return 0; | |
592 | } | |
593 | nsets = 0; | |
594 | if (config->fonts[FcSetSystem]) | |
595 | sets[nsets++] = config->fonts[FcSetSystem]; | |
596 | if (config->fonts[FcSetApplication]) | |
597 | sets[nsets++] = config->fonts[FcSetApplication]; | |
598 | return FcFontSetMatch (config, sets, nsets, p, result); | |
599 | } | |
216fac98 | 600 | |
216fac98 | 601 | typedef struct _FcSortNode { |
216fac98 | 602 | FcPattern *pattern; |
4c003605 | 603 | double score[NUM_MATCH_VALUES]; |
216fac98 KP |
604 | } FcSortNode; |
605 | ||
0ab36ca8 KP |
606 | static int |
607 | FcSortCompare (const void *aa, const void *ab) | |
216fac98 | 608 | { |
0ab36ca8 KP |
609 | FcSortNode *a = *(FcSortNode **) aa; |
610 | FcSortNode *b = *(FcSortNode **) ab; | |
bc9469ba KP |
611 | double *as = &a->score[0]; |
612 | double *bs = &b->score[0]; | |
88c747e2 | 613 | double ad = 0, bd = 0; |
0ab36ca8 | 614 | int i; |
216fac98 | 615 | |
4c003605 | 616 | i = NUM_MATCH_VALUES; |
bc9469ba KP |
617 | while (i-- && (ad = *as++) == (bd = *bs++)) |
618 | ; | |
619 | return ad < bd ? -1 : ad > bd ? 1 : 0; | |
216fac98 KP |
620 | } |
621 | ||
622 | static FcBool | |
0ab36ca8 | 623 | FcSortWalk (FcSortNode **n, int nnode, FcFontSet *fs, FcCharSet **cs, FcBool trim) |
216fac98 KP |
624 | { |
625 | FcCharSet *ncs; | |
0ab36ca8 KP |
626 | FcSortNode *node; |
627 | ||
628 | while (nnode--) | |
216fac98 | 629 | { |
0ab36ca8 KP |
630 | node = *n++; |
631 | if (FcPatternGetCharSet (node->pattern, FC_CHARSET, 0, &ncs) == | |
632 | FcResultMatch) | |
216fac98 | 633 | { |
1412a699 KP |
634 | /* |
635 | * If this font isn't a subset of the previous fonts, | |
636 | * add it to the list | |
637 | */ | |
638 | if (!trim || !*cs || !FcCharSetIsSubset (ncs, *cs)) | |
216fac98 | 639 | { |
0ab36ca8 KP |
640 | if (*cs) |
641 | { | |
642 | ncs = FcCharSetUnion (ncs, *cs); | |
643 | if (!ncs) | |
644 | return FcFalse; | |
645 | FcCharSetDestroy (*cs); | |
646 | } | |
647 | else | |
648 | ncs = FcCharSetCopy (ncs); | |
649 | *cs = ncs; | |
6f6563ed | 650 | FcPatternReference (node->pattern); |
82f4243f KP |
651 | if (FcDebug () & FC_DBG_MATCH) |
652 | { | |
653 | printf ("Add "); | |
654 | FcPatternPrint (node->pattern); | |
655 | } | |
0ab36ca8 | 656 | if (!FcFontSetAdd (fs, node->pattern)) |
6f6563ed KP |
657 | { |
658 | FcPatternDestroy (node->pattern); | |
216fac98 | 659 | return FcFalse; |
6f6563ed | 660 | } |
216fac98 | 661 | } |
216fac98 KP |
662 | } |
663 | } | |
216fac98 KP |
664 | return FcTrue; |
665 | } | |
666 | ||
1412a699 KP |
667 | void |
668 | FcFontSetSortDestroy (FcFontSet *fs) | |
669 | { | |
1412a699 KP |
670 | FcFontSetDestroy (fs); |
671 | } | |
672 | ||
216fac98 KP |
673 | FcFontSet * |
674 | FcFontSetSort (FcConfig *config, | |
675 | FcFontSet **sets, | |
676 | int nsets, | |
677 | FcPattern *p, | |
678 | FcBool trim, | |
679 | FcCharSet **csp, | |
680 | FcResult *result) | |
681 | { | |
682 | FcFontSet *ret; | |
683 | FcFontSet *s; | |
684 | FcSortNode *nodes; | |
0ab36ca8 | 685 | FcSortNode **nodeps, **nodep; |
216fac98 | 686 | int nnodes; |
216fac98 KP |
687 | FcSortNode *new; |
688 | FcCharSet *cs; | |
689 | int set; | |
690 | int f; | |
691 | int i; | |
5cf8c536 KP |
692 | int nPatternLang; |
693 | FcBool *patternLangSat; | |
694 | FcValue patternLang; | |
216fac98 | 695 | |
82f4243f KP |
696 | if (FcDebug () & FC_DBG_MATCH) |
697 | { | |
698 | printf ("Sort "); | |
699 | FcPatternPrint (p); | |
700 | } | |
216fac98 KP |
701 | nnodes = 0; |
702 | for (set = 0; set < nsets; set++) | |
703 | { | |
704 | s = sets[set]; | |
705 | if (!s) | |
706 | continue; | |
707 | nnodes += s->nfont; | |
708 | } | |
709 | if (!nnodes) | |
710 | goto bail0; | |
5cf8c536 KP |
711 | |
712 | for (nPatternLang = 0; | |
713 | FcPatternGet (p, FC_LANG, nPatternLang, &patternLang) == FcResultMatch; | |
714 | nPatternLang++) | |
715 | ; | |
716 | ||
9dac3c59 | 717 | /* freed below */ |
5cf8c536 KP |
718 | nodes = malloc (nnodes * sizeof (FcSortNode) + |
719 | nnodes * sizeof (FcSortNode *) + | |
720 | nPatternLang * sizeof (FcBool)); | |
216fac98 KP |
721 | if (!nodes) |
722 | goto bail0; | |
1412a699 | 723 | nodeps = (FcSortNode **) (nodes + nnodes); |
5cf8c536 | 724 | patternLangSat = (FcBool *) (nodeps + nnodes); |
216fac98 | 725 | |
216fac98 | 726 | new = nodes; |
0ab36ca8 | 727 | nodep = nodeps; |
216fac98 KP |
728 | for (set = 0; set < nsets; set++) |
729 | { | |
730 | s = sets[set]; | |
731 | if (!s) | |
732 | continue; | |
733 | for (f = 0; f < s->nfont; f++) | |
734 | { | |
735 | if (FcDebug () & FC_DBG_MATCHV) | |
736 | { | |
737 | printf ("Font %d ", f); | |
738 | FcPatternPrint (s->fonts[f]); | |
739 | } | |
740 | new->pattern = s->fonts[f]; | |
741 | if (!FcCompare (p, new->pattern, new->score, result)) | |
742 | goto bail1; | |
743 | if (FcDebug () & FC_DBG_MATCHV) | |
744 | { | |
745 | printf ("Score"); | |
4c003605 | 746 | for (i = 0; i < NUM_MATCH_VALUES; i++) |
216fac98 KP |
747 | { |
748 | printf (" %g", new->score[i]); | |
749 | } | |
750 | printf ("\n"); | |
751 | } | |
0ab36ca8 | 752 | *nodep = new; |
216fac98 | 753 | new++; |
0ab36ca8 | 754 | nodep++; |
216fac98 KP |
755 | } |
756 | } | |
757 | ||
0ab36ca8 KP |
758 | nnodes = new - nodes; |
759 | ||
1412a699 | 760 | qsort (nodeps, nnodes, sizeof (FcSortNode *), |
0ab36ca8 | 761 | FcSortCompare); |
5cf8c536 KP |
762 | |
763 | for (i = 0; i < nPatternLang; i++) | |
764 | patternLangSat[i] = FcFalse; | |
765 | ||
766 | for (f = 0; f < nnodes; f++) | |
767 | { | |
768 | FcBool satisfies = FcFalse; | |
769 | /* | |
770 | * If this node matches any language, go check | |
771 | * which ones and satisfy those entries | |
772 | */ | |
773 | if (nodeps[f]->score[MATCH_LANG_INDEX] < nPatternLang) | |
774 | { | |
775 | for (i = 0; i < nPatternLang; i++) | |
776 | { | |
777 | FcValue nodeLang; | |
778 | ||
779 | if (!patternLangSat[i] && | |
780 | FcPatternGet (p, FC_LANG, i, &patternLang) == FcResultMatch && | |
781 | FcPatternGet (nodeps[f]->pattern, FC_LANG, 0, &nodeLang) == FcResultMatch) | |
782 | { | |
4262e0b3 PL |
783 | double compare = FcCompareLang (FC_LANG, &patternLang, |
784 | &nodeLang); | |
5cf8c536 KP |
785 | if (compare >= 0 && compare < 2) |
786 | { | |
787 | if (FcDebug () & FC_DBG_MATCHV) | |
788 | { | |
789 | FcChar8 *family; | |
790 | FcChar8 *style; | |
791 | ||
792 | if (FcPatternGetString (nodeps[f]->pattern, FC_FAMILY, 0, &family) == FcResultMatch && | |
793 | FcPatternGetString (nodeps[f]->pattern, FC_STYLE, 0, &style) == FcResultMatch) | |
794 | printf ("Font %s:%s matches language %d\n", family, style, i); | |
795 | } | |
796 | patternLangSat[i] = FcTrue; | |
797 | satisfies = FcTrue; | |
798 | break; | |
799 | } | |
800 | } | |
801 | } | |
802 | } | |
803 | if (!satisfies) | |
804 | nodeps[f]->score[MATCH_LANG_INDEX] = 1000.0; | |
805 | } | |
806 | ||
807 | /* | |
808 | * Re-sort once the language issues have been settled | |
809 | */ | |
810 | qsort (nodeps, nnodes, sizeof (FcSortNode *), | |
811 | FcSortCompare); | |
0ab36ca8 | 812 | |
216fac98 KP |
813 | ret = FcFontSetCreate (); |
814 | if (!ret) | |
815 | goto bail1; | |
816 | ||
817 | cs = 0; | |
818 | ||
0ab36ca8 | 819 | if (!FcSortWalk (nodeps, nnodes, ret, &cs, trim)) |
216fac98 KP |
820 | goto bail2; |
821 | ||
d0f07b8d KP |
822 | if (csp) |
823 | *csp = cs; | |
824 | else | |
825 | FcCharSetDestroy (cs); | |
216fac98 | 826 | |
1412a699 KP |
827 | free (nodes); |
828 | ||
216fac98 KP |
829 | return ret; |
830 | ||
831 | bail2: | |
832 | if (cs) | |
833 | FcCharSetDestroy (cs); | |
834 | FcFontSetDestroy (ret); | |
835 | bail1: | |
836 | free (nodes); | |
837 | bail0: | |
838 | return 0; | |
839 | } | |
20ac65ab KP |
840 | |
841 | FcFontSet * | |
842 | FcFontSort (FcConfig *config, | |
843 | FcPattern *p, | |
844 | FcBool trim, | |
845 | FcCharSet **csp, | |
846 | FcResult *result) | |
847 | { | |
848 | FcFontSet *sets[2]; | |
849 | int nsets; | |
850 | ||
851 | if (!config) | |
852 | { | |
853 | config = FcConfigGetCurrent (); | |
854 | if (!config) | |
855 | return 0; | |
856 | } | |
857 | nsets = 0; | |
858 | if (config->fonts[FcSetSystem]) | |
859 | sets[nsets++] = config->fonts[FcSetSystem]; | |
860 | if (config->fonts[FcSetApplication]) | |
861 | sets[nsets++] = config->fonts[FcSetApplication]; | |
862 | return FcFontSetSort (config, sets, nsets, p, trim, csp, result); | |
863 | } |