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Comparing rxvt-unicode/src/rxvtfont.C (file contents):
Revision 1.160 by sf-exg, Wed Mar 31 21:52:05 2010 UTC vs.
Revision 1.223 by sf-exg, Sat Aug 19 17:44:35 2023 UTC

1/*----------------------------------------------------------------------* 1/*----------------------------------------------------------------------*
2 * File: rxvtfont.C 2 * File: rxvtfont.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * Copyright (c) 2003-2008 Marc Lehmann <pcg@goof.com> 4 * Copyright (c) 2003-2008 Marc Lehmann <schmorp@schmorp.de>
5 * - original version. 5 * - original version.
6 * 6 *
7 * This program is free software; you can redistribute it and/or modify 7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by 8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or 9 * the Free Software Foundation; either version 3 of the License, or
10 * (at your option) any later version. 10 * (at your option) any later version.
11 * 11 *
12 * This program is distributed in the hope that it will be useful, 12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
… …
22#include "../config.h" 22#include "../config.h"
23#include "rxvt.h" 23#include "rxvt.h"
24#include "rxvtutil.h" 24#include "rxvtutil.h"
25#include "rxvtfont.h" 25#include "rxvtfont.h"
26 26
27#include <cstdlib> 27#include <stdlib.h>
28 28
29#include <inttypes.h> 29#include <inttypes.h>
30
31#if XFT
32# include <fontconfig/fontconfig.h>
33#endif
30 34
31#define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width 35#define MAX_OVERLAP_ROMAN (8 + 2) // max. character width in 8ths of the base width
32#define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts 36#define MAX_OVERLAP_ITALIC (8 + 3) // max. overlap for italic fonts
33 37
34#define OVERLAP_OK(w,wcw,prop) ((w) <= ( \ 38#define OVERLAP_OK(w,wcw,prop) ((w) <= ( \
35 (prop)->slant >= rxvt_fontprop::italic \ 39 (prop)->slant >= rxvt_fontprop::italic \
36 ? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \ 40 ? ((prop)->width * (wcw) * MAX_OVERLAP_ITALIC + 7) >> 3 \
37 : ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \ 41 : ((prop)->width * (wcw) * MAX_OVERLAP_ROMAN + 7) >> 3 \
38 )) 42 ))
39 43
40const struct rxvt_fallback_font { 44static const struct rxvt_fallback_font {
41 codeset cs; 45 codeset cs;
42 const char *name; 46 const char *name;
43} fallback_fonts[] = { 47} fallback_fonts[] = {
44 { CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" }, 48 { CS_ISO8859_1, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-1" },
45 { CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" }, 49 { CS_ISO8859_15, "-*-*-*-r-*--*-*-*-*-c-*-iso8859-15" },
… …
128 { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" }, 132 { CS_KSC5601_1987_0, "xft:Baekmuk Gulim:antialias=false" },
129 { CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" }, 133 { CS_KSC5601_1987_0, "xft::lang=ko:antialias=false" },
130# endif 134# endif
131#endif 135#endif
132 136
133 { CS_UNICODE, "-*-lucidatypewriter-*-*-*-*-*-*-*-*-m-*-iso10646-1" },
134 //{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs. 137 //{ CS_UNICODE, "-*-unifont-*-*-*-*-*-*-*-*-c-*-iso10646-1" }, // this gem of a font has actual dotted circles within the combining character glyphs.
135#if XFT 138#if XFT
136 { CS_UNICODE, "xft:Bitstream Vera Sans Mono:antialias=false:autohint=true" }, 139 { CS_UNICODE, "xft:DejaVu Sans Mono:antialias=false:autohint=true" },
137 { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" }, 140 { CS_UNICODE, "xft:Courier New:antialias=false:autohint=true" },
138 { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" }, 141 { CS_UNICODE, "xft:Andale Mono:antialias=false:autohint=false" },
139 { CS_UNICODE, "xft:Arial Unicode MS:antialias=false:autohint=false" }, 142 { CS_UNICODE, "xft:Arial Unicode MS:antialias=false:autohint=false" },
140 143
141 // FreeMono is usually uglier than x fonts, so try after the others 144 // FreeMono is usually uglier than x fonts, so try after the others
142 { CS_UNICODE, "xft:FreeMono:autohint=true" }, 145 { CS_UNICODE, "xft:FreeMono:autohint=true" },
143#endif 146#endif
144 147
… …
155 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_', 158 '0', '1', '8', 'a', 'd', 'x', 'm', 'y', 'g', 'W', 'X', '\'', '_',
156 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ 159 0x00cd, 0x00d5, 0x0114, 0x0177, 0x0643, // ÍÕĔŷﻙ
157 0x304c, 0x672c, // が本 160 0x304c, 0x672c, // が本
158}; 161};
159 162
160#define NUM_EXTENT_TEST_CHARS (sizeof (extent_test_chars) / sizeof (extent_test_chars[0]))
161
162#define dTermDisplay Display *disp = term->dpy 163#define dTermDisplay Display *disp = term->dpy
163#define dTermGC GC gc = term->gc 164#define dTermGC GC gc = term->gc
164 165
165///////////////////////////////////////////////////////////////////////////// 166/////////////////////////////////////////////////////////////////////////////
166 167
… …
238 else if (color >= 0) 239 else if (color >= 0)
239 { 240 {
240#if XFT 241#if XFT
241 Picture dst; 242 Picture dst;
242 243
243# ifdef HAVE_BG_PIXMAP 244# ifdef HAVE_IMG
244 if (term->bgPixmap.pixmap 245 if (term->bg_img
245 && !term->pix_colors[color].is_opaque () 246 && !term->pix_colors[color].is_opaque ()
246 && ((dst = XftDrawPicture (d)))) 247 && ((dst = XftDrawPicture (d))))
247 { 248 {
248 XClearArea (disp, d, x, y, w, h, false); 249 XClearArea (disp, d, x, y, w, h, false);
249 250
… …
261 } 262 }
262} 263}
263 264
264///////////////////////////////////////////////////////////////////////////// 265/////////////////////////////////////////////////////////////////////////////
265 266
266struct rxvt_font_default : rxvt_font { 267struct rxvt_font_default : rxvt_font
268{
267 struct rxvt_fontset *fs; 269 struct rxvt_fontset *fs;
268 270
269 rxvt_font_default (rxvt_fontset *fs) 271 rxvt_font_default (rxvt_fontset *fs)
270 : rxvt_font () 272 : rxvt_font ()
271 { 273 {
… …
311 if (unicode >= 0x2500 && unicode <= 0x259f && 313 if (unicode >= 0x2500 && unicode <= 0x259f &&
312 !term->option (Opt_skipBuiltinGlyphs)) 314 !term->option (Opt_skipBuiltinGlyphs))
313 return true; 315 return true;
314#endif 316#endif
315 317
316 if (IS_COMPOSE (unicode)) 318 // we do not check for IS_COMPOSE here, as this would
317 return true; 319 // rob other fonts from taking over.
318 320
319 switch (unicode) 321 switch (unicode)
320 { 322 {
321 case ZERO_WIDTH_CHAR: 323 case ZERO_WIDTH_CHAR:
322 case NOCHAR: 324 case NOCHAR:
… …
343 345
344 XSetForeground (disp, gc, term->pix_colors[fg]); 346 XSetForeground (disp, gc, term->pix_colors[fg]);
345 347
346 while (len) 348 while (len)
347 { 349 {
350 const text_t *tp = text;
351 text_t t = *tp;
352
353 while (++text, --len && *text == NOCHAR)
354 ;
355
348#if ENABLE_COMBINING 356#if ENABLE_COMBINING
349 compose_char *cc; 357 compose_char *cc;
350#endif 358#endif
351 const text_t *tp = text;
352 text_t t = *tp;
353
354 while (++text, --len && *text == NOCHAR)
355 ;
356
357 int width = text - tp; 359 int width = text - tp;
358 int fwidth = term->fwidth * width; 360 int fwidth = term->fwidth * width;
359 361
360#ifdef BUILTIN_GLYPHS 362#ifdef BUILTIN_GLYPHS
361 if (0x2500 <= t && t <= 0x259f) 363 if (0x2500 <= t && t <= 0x259f)
… …
443#endif 445#endif
444#if ENABLE_COMBINING 446#if ENABLE_COMBINING
445 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t])) 447 else if (IS_COMPOSE (t) && (cc = rxvt_composite[t]))
446 { 448 {
447 min_it (width, 2); // we only support wcwidth up to 2 449 min_it (width, 2); // we only support wcwidth up to 2
448
449 text_t chrs[2]; 450 text_t chrs[2];
450 chrs [1] = NOCHAR; 451 chrs [1] = NOCHAR;
451 452
452 *chrs = cc->c1; 453 *chrs = cc->c1;
453 rxvt_font *f1 = (*fs)[fs->find_font (cc->c1)]; 454 rxvt_font *f1 = (*fs)[fs->find_font_idx (cc->c1)];
454 f1->draw (d, x, y, chrs, width, fg, bg); 455 f1->draw (d, x, y, chrs, width, fg, bg);
455 456
456 if (cc->c2 != NOCHAR) 457 if (cc->c2 != NOCHAR)
457 { 458 {
458 bool careful; 459 bool careful;
459 460
460 // prefer font of first character, for no good reasons 461 // prefer font of first character, for no good reasons
461 *chrs = cc->c2; 462 *chrs = cc->c2;
462 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful) 463 rxvt_font *f2 = (f1->has_char (cc->c2, 0, careful) && !careful)
463 ? f1 464 ? f1
464 : (*fs)[fs->find_font (cc->c2)]; 465 : (*fs)[fs->find_font_idx (cc->c2)];
465 466
466 f2->draw (d, x, y, chrs, width, fg, Color_none); 467 f2->draw (d, x, y, chrs, width, fg, Color_none);
467 } 468 }
468 } 469 }
469#endif 470#endif
… …
473 case '\t': 474 case '\t':
474 case ZERO_WIDTH_CHAR: 475 case ZERO_WIDTH_CHAR:
475 case NOCHAR: 476 case NOCHAR:
476 break; 477 break;
477 478
479 /*
480 * If the base font does not support variation selectors, treat them as ZWC.
481 * a point could be made to do this for all wcwidth == 0 characters, but I
482 * decided against that until more data is available.
483 */
484 case 0xfe00: case 0xfe01: case 0xfe02: case 0xfe03: case 0xfe04: case 0xfe05: case 0xfe06: case 0xfe07:
485 case 0xfe08: case 0xfe09: case 0xfe0a: case 0xfe0b: case 0xfe0c: case 0xfe0d: case 0xfe0e: case 0xfe0f:
486 break;
487
478 default: 488 default:
479 XDrawRectangle (disp, d, gc, x + 2, y + 2, 489 XDrawRectangle (disp, d, gc, x + 2, y + 2,
480 fwidth - 4, term->fheight - 4); 490 fwidth - 4, term->fheight - 4);
481 } 491 }
482 492
483 x += fwidth; 493 x += fwidth;
484 } 494 }
485} 495}
486 496
487struct rxvt_font_meta : rxvt_font { 497struct rxvt_font_overflow : rxvt_font
498{
488 struct rxvt_fontset *fs; 499 struct rxvt_fontset *fs;
489 500
490 rxvt_font_meta (rxvt_fontset *fs) 501 rxvt_font_overflow (rxvt_fontset *fs)
491 : rxvt_font () 502 : rxvt_font ()
492 { 503 {
493 this->fs = fs; 504 this->fs = fs;
494 } 505 }
495 506
… …
506 } 517 }
507 518
508 bool load (const rxvt_fontprop &prop, bool force_prop) 519 bool load (const rxvt_fontprop &prop, bool force_prop)
509 { 520 {
510 width = 1; height = 1; 521 width = 1; height = 1;
511 ascent = 1; descent = 0; 522 ascent = 1;
523 descent = (*fs)[2]->descent;
512 524
513 set_name (strdup ("built-in meta font")); 525 set_name (strdup ("built-in rendition overflow font"));
514 526
515 return true; 527 return true;
516 } 528 }
517 529
518 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const 530 bool has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
… …
522 534
523 void draw (rxvt_drawable &d, int x, int y, 535 void draw (rxvt_drawable &d, int x, int y,
524 const text_t *text, int len, 536 const text_t *text, int len,
525 int fg, int bg) 537 int fg, int bg)
526 { 538 {
527 while (len--) 539 while (len)
528 { 540 {
529 int fid = fs->find_font_idx (*text); 541 int fid = fs->find_font_idx (*text);
542 int w = 1;
543 while (w < len && text[w] == NOCHAR)
544 w++;
530 (*fs)[fid]->draw (d, x, y, text, 1, fg, bg); 545 (*fs)[fid]->draw (d, x, y, text, w, fg, bg);
531 ++text; 546 text += w;
547 len -= w;
532 x += term->fwidth; 548 x += term->fwidth * w;
533 } 549 }
534 } 550 }
535}; 551};
536 552
537///////////////////////////////////////////////////////////////////////////// 553/////////////////////////////////////////////////////////////////////////////
538 554
539struct rxvt_font_x11 : rxvt_font { 555struct rxvt_font_x11 : rxvt_font
556{
540 rxvt_font_x11 () { f = 0; } 557 rxvt_font_x11 () { f = 0; }
541 558
542 void clear (); 559 void clear ();
543 560
544 rxvt_fontprop properties (); 561 rxvt_fontprop properties ();
… …
716 f = XLoadQueryFont (disp, name); 733 f = XLoadQueryFont (disp, name);
717 734
718 if (!f) 735 if (!f)
719 return false; 736 return false;
720 737
721 char *new_name = get_property (f, XA_FONT, name); 738 char *new_name = get_property (f, XA_FONT, 0);
722 739
723 if (new_name) 740 if (new_name)
724 set_name (new_name); 741 set_name (new_name);
725 else 742 else
726 rxvt_warn ("font '%s' has no FONT property, continuing without.", name); 743 rxvt_warn ("font '%s' has no FONT property, continuing without.\n", name);
727 744
728 XFreeFont (disp, f); 745 XFreeFont (disp, f);
729 f = 0; 746 f = 0;
730 } 747 }
731 748
… …
788 free (fname); 805 free (fname);
789 if (replace_field (&fname, list[i], 11, '0', "0")) 806 if (replace_field (&fname, list[i], 11, '0', "0"))
790 diff += 300; // more heavily penalize what looks like scaled bitmap fonts 807 diff += 300; // more heavily penalize what looks like scaled bitmap fonts
791 } 808 }
792 809
793 if (!set_properties (p, fname)) 810 if (!set_properties (p, fname)
811 // also weed out too large fonts
812 || (prop.height != rxvt_fontprop::unset
813 && p.height > prop.height))
814 {
815 free (fname);
794 continue; 816 continue;
795 817 }
796 if (prop.height != rxvt_fontprop::unset
797 && p.height > prop.height) // weed out too large fonts
798 continue;
799 818
800 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128; 819 if (prop.height != rxvt_fontprop::unset) diff += (prop.height - p.height) * 128;
801 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight); 820 if (prop.weight != rxvt_fontprop::unset) diff += abs (prop.weight - p.weight);
802 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant); 821 if (prop.slant != rxvt_fontprop::unset) diff += abs (prop.slant - p.slant);
803 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width); 822 //if (prop.width != rxvt_fontprop::unset) diff += abs (prop.width - p.width);
… …
809 XFreeFontNames (list); 828 XFreeFontNames (list);
810 829
811 // this loop only iterates when the guessed font-size is too small 830 // this loop only iterates when the guessed font-size is too small
812 for (;;) 831 for (;;)
813 { 832 {
814 font_weight *best = fonts + count - 1; 833 font_weight *best = fonts;
815 834
816 for (font_weight *w = best; w-- > fonts; ) 835 for (font_weight *w = fonts + 1; w < fonts + count; w++)
817 if (w->diff <= best->diff) 836 if (w->diff < best->diff)
818 best = w; 837 best = w;
819 838
820 if (!best->name 839 if (!best->name
821 || !(f = XLoadQueryFont (disp, best->name))) 840 || !(f = XLoadQueryFont (disp, best->name)))
822 break; 841 break;
… …
860 free (registry); 879 free (registry);
861 free (encoding); 880 free (encoding);
862 881
863 if (cs == CS_UNKNOWN) 882 if (cs == CS_UNKNOWN)
864 { 883 {
865 const char *charset = get_property (f, XA_FONT, 0); 884 char *value = get_property (f, XA_FONT, 0);
885 const char *charset = value;
866 886
867 if (!charset) 887 if (!charset)
868 charset = name; 888 charset = name;
869 889
870 int count = 13; 890 int count = 13;
… …
873 break; 893 break;
874 894
875 cs = codeset_from_name (charset); 895 cs = codeset_from_name (charset);
876 if (cs == CS_UNKNOWN) 896 if (cs == CS_UNKNOWN)
877 rxvt_warn ("%s: cannot deduce encoding from font name property \"%s\", ignoring font.\n", name, charset); 897 rxvt_warn ("%s: cannot deduce encoding from font name property \"%s\", ignoring font.\n", name, charset);
898
899 free (value);
878 } 900 }
879 901
880 if (cs == CS_UNKNOWN) 902 if (cs == CS_UNKNOWN)
881 { 903 {
882 clear (); 904 clear ();
… …
914 } 936 }
915#endif 937#endif
916 938
917 width = 1; 939 width = 1;
918 940
919 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) 941 for (uint16_t *t = extent_test_chars; t < extent_test_chars + ecb_array_length (extent_test_chars); t++)
920 { 942 {
921 if (FROM_UNICODE (cs, *t) == NOCHAR) 943 if (FROM_UNICODE (cs, *t) == NOCHAR)
922 continue; 944 continue;
923 945
924 // ignore characters we wouldn't use anyways 946 // ignore characters we wouldn't use anyways
925 bool careful; 947 bool careful;
926 if (!has_char (*t, &prop, careful)) 948 if (!has_char (*t, &prop, careful))
927 continue; 949 continue;
928 950
929 XChar2b ch = { *t >> 8, *t }; 951 // the casts are needed in C++11 (see 8.5.1)
952 XChar2b ch = { (unsigned char)(*t >> 8), (unsigned char)*t };
930 953
931 XCharStruct g; 954 XCharStruct g;
932 int dir_ret, asc_ret, des_ret; 955 int dir_ret, asc_ret, des_ret;
933 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g); 956 XTextExtents16 (f, &ch, 1, &dir_ret, &asc_ret, &des_ret, &g);
934 957
… …
960} 983}
961 984
962bool 985bool
963rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const 986rxvt_font_x11::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
964{ 987{
988 careful = false;
989
965 uint32_t ch = FROM_UNICODE (cs, unicode); 990 uint32_t ch = FROM_UNICODE (cs, unicode);
966 991
967 if (ch == NOCHAR) 992 if (ch == NOCHAR)
968 return false; 993 return false;
969 994
… …
1032 dTermDisplay; 1057 dTermDisplay;
1033 dTermGC; 1058 dTermGC;
1034 1059
1035 bool slow = this->slow 1060 bool slow = this->slow
1036 || width != term->fwidth 1061 || width != term->fwidth
1037 || height != term->fheight; 1062 || height != term->fheight
1063 || ascent != f->ascent;
1038 1064
1039 int base = ascent; // sorry, incorrect: term->fbase; 1065 int base = ascent; // sorry, incorrect: term->fbase;
1040 1066
1041 XGCValues v; 1067 XGCValues v;
1042 v.foreground = term->pix_colors[fg]; 1068 v.foreground = term->pix_colors[fg];
… …
1110 1136
1111///////////////////////////////////////////////////////////////////////////// 1137/////////////////////////////////////////////////////////////////////////////
1112 1138
1113#if XFT 1139#if XFT
1114 1140
1115struct rxvt_font_xft : rxvt_font { 1141struct rxvt_font_xft : rxvt_font
1142{
1143#if XFT_CHAR_CACHE
1144 // we cache the qascii range xoffsets in the name of speed,
1145 // expecting terminals to deal mostly with these characters
1146 // we also assume the xoff always fits into uint8_t,
1147 // which is questionable, but let's see...
1148 // also, it is uncomfortably big, due to the uints.
1149 enum { char_cache_min = 0x20, char_cache_max = 0x7e };
1150 uint8_t xoff_cache [char_cache_max - char_cache_min + 1];
1151 FT_UInt glyph_cache [char_cache_max - char_cache_min + 1];
1152#endif
1153
1116 rxvt_font_xft () { f = 0; } 1154 rxvt_font_xft ()
1155 {
1156 f = 0;
1157 }
1117 1158
1118 void clear (); 1159 void clear ();
1119 1160
1120 rxvt_fontprop properties (); 1161 rxvt_fontprop properties ();
1121 1162
… …
1211 int ftheight = 0; 1252 int ftheight = 0;
1212 bool success = true; 1253 bool success = true;
1213 1254
1214 for (;;) 1255 for (;;)
1215 { 1256 {
1257 p = FcPatternDuplicate (match);
1216 f = XftFontOpenPattern (disp, FcPatternDuplicate (match)); 1258 f = XftFontOpenPattern (disp, p);
1217 1259
1218 if (!f) 1260 if (!f)
1219 { 1261 {
1262 FcPatternDestroy (p);
1220 success = false; 1263 success = false;
1221 break; 1264 break;
1222 } 1265 }
1223 1266
1224 FT_Face face = XftLockFace (f); 1267 FT_Face face = XftLockFace (f);
1268
1269 // fuck me plenty: XftLockFace can actually return 0. try not to crash.
1270 // we also assume blindly that if the first lock succeeds, then subsequent
1271 // locks will also succeed.
1272 if (!face)
1273 {
1274 XftFontClose (disp, f);
1275 success = false;
1276 break;
1277 }
1225 1278
1226 ascent = (face->size->metrics.ascender + 63) >> 6; 1279 ascent = (face->size->metrics.ascender + 63) >> 6;
1227 descent = (-face->size->metrics.descender + 63) >> 6; 1280 descent = (-face->size->metrics.descender + 63) >> 6;
1228 height = max (ascent + descent, (face->size->metrics.height + 63) >> 6); 1281 height = max (ascent + descent, (face->size->metrics.height + 63) >> 6);
1229 width = 0; 1282 width = 0;
… …
1232 1285
1233 XftUnlockFace (f); 1286 XftUnlockFace (f);
1234 1287
1235 int glheight = height; 1288 int glheight = height;
1236 1289
1237 for (uint16_t *t = extent_test_chars + NUM_EXTENT_TEST_CHARS; t-- > extent_test_chars; ) 1290 for (uint16_t *t = extent_test_chars; t < extent_test_chars + ecb_array_length (extent_test_chars); t++)
1238 { 1291 {
1239 FcChar16 ch = *t; 1292 FcChar16 ch = *t;
1240 1293
1241 if (cs != CS_UNICODE 1294 if (cs != CS_UNICODE
1242 && ch > 0x100 1295 && ch > 0x100
… …
1261 if (glheight < g.height - g.y) glheight = g.height - g.y; 1314 if (glheight < g.height - g.y) glheight = g.height - g.y;
1262 } 1315 }
1263 1316
1264 if (!width) 1317 if (!width)
1265 { 1318 {
1266 rxvt_warn ("unable to calculate font width for '%s', ignoring.\n", name); 1319 rxvt_warn ("unable to calculate font width for '%s', using max_advance_width.\n", name);
1267 1320 width = f->max_advance_width;
1268 XftFontClose (disp, f);
1269 f = 0;
1270
1271 success = false;
1272 break; 1321 break;
1273 } 1322 }
1274 1323
1275 if (prop.height == rxvt_fontprop::unset 1324 if (prop.height == rxvt_fontprop::unset
1276 || (height <= prop.height && glheight <= prop.height) 1325 || (height <= prop.height && glheight <= prop.height)
… …
1303 clear (); 1352 clear ();
1304 success = false; 1353 success = false;
1305 } 1354 }
1306#endif 1355#endif
1307 1356
1357#if XFT_CHAR_CACHE
1358 // populate char cache
1359 for (FcChar16 ch = char_cache_min; ch <= char_cache_max; ++ch)
1360 {
1361 FT_UInt glyph = XftCharIndex (disp, f, ch);
1362 glyph_cache [ch - char_cache_min] = glyph;
1363
1364 XGlyphInfo g;
1365 XftGlyphExtents (disp, f, &glyph, 1, &g);
1366 xoff_cache [ch - char_cache_min] = g.xOff;
1367 }
1368#endif
1369
1308 return success; 1370 return success;
1309} 1371}
1310 1372
1311bool 1373bool
1312rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const 1374rxvt_font_xft::has_char (unicode_t unicode, const rxvt_fontprop *prop, bool &careful) const
1313{ 1375{
1314 careful = false; 1376 careful = false;
1315 1377
1378 // handle non-bmp chars when text_t is 16 bit
1379#if ENABLE_COMBINING && !UNICODE_3
1380 if (ecb_expect_false (IS_COMPOSE (unicode)))
1381 if (compose_char *cc = rxvt_composite [unicode])
1382 if (cc->c2 == NOCHAR)
1383 unicode = cc->c1;
1384 else
1385 return false;
1386 else
1387 return false;
1388#endif
1389
1390 FcChar32 chr = unicode;
1391
1316 if (!XftCharExists (term->dpy, f, unicode)) 1392 if (!XftCharExists (term->dpy, f, chr))
1317 return false; 1393 return false;
1318 1394
1319 if (!prop || prop->width == rxvt_fontprop::unset) 1395 if (!prop || prop->width == rxvt_fontprop::unset)
1320 return true; 1396 return true;
1321 1397
1322 // check character against base font bounding box 1398 int wcw = max (WCWIDTH (chr), 1);
1323 FcChar32 ch = unicode; 1399
1324 XGlyphInfo g; 1400 XGlyphInfo g;
1325 XftTextExtents32 (term->dpy, f, &ch, 1, &g); 1401 XftTextExtents32 (term->dpy, f, &chr, 1, &g);
1402
1403 int cwidth = prop->width * wcw;
1404
1405 // use same adjustments as in ->draw, see there
1406 g.x += g.xOff ? cwidth - g.xOff >> 1 : 0;
1407 g.x += g.xOff ? 0 : cwidth;
1326 1408
1327 int w = g.width - g.x; 1409 int w = g.width - g.x;
1328 int wcw = max (WCWIDTH (unicode), 1);
1329 1410
1330 careful = g.x > 0 || w > prop->width * wcw; 1411 careful = g.x > 0 || w > cwidth;
1331 1412
1332 if (careful && !OVERLAP_OK (w, wcw, prop)) 1413 if (careful && !OVERLAP_OK (w, wcw, prop))
1333 return false; 1414 return false;
1334 1415
1335 // this weeds out _totally_ broken fonts, or glyphs 1416 // this weeds out _totally_ broken fonts, or glyphs
… …
1342void 1423void
1343rxvt_font_xft::draw (rxvt_drawable &d, int x, int y, 1424rxvt_font_xft::draw (rxvt_drawable &d, int x, int y,
1344 const text_t *text, int len, 1425 const text_t *text, int len,
1345 int fg, int bg) 1426 int fg, int bg)
1346{ 1427{
1347 XGlyphInfo extents;
1348 XftGlyphSpec *enc = rxvt_temp_buf<XftGlyphSpec> (len); 1428 XftGlyphSpec *enc = rxvt_temp_buf<XftGlyphSpec> (len);
1349 XftGlyphSpec *ep = enc; 1429 XftGlyphSpec *ep = enc;
1350 1430
1351 dTermDisplay; 1431 dTermDisplay;
1352 dTermGC; 1432 dTermGC;
… …
1365 int y_ = buffered ? 0 : y; 1445 int y_ = buffered ? 0 : y;
1366 1446
1367 while (len) 1447 while (len)
1368 { 1448 {
1369 int cwidth = term->fwidth; 1449 int cwidth = term->fwidth;
1370 FcChar32 fc = *text++; len--; 1450 FcChar32 chr = *text++; len--;
1371 1451
1372 while (len && *text == NOCHAR) 1452 while (len && *text == NOCHAR)
1373 text++, len--, cwidth += term->fwidth; 1453 text++, len--, cwidth += term->fwidth;
1374 1454
1375 if (fc != ' ') // skip spaces 1455 if (chr != ' ') // skip spaces
1456 {
1457 // handle non-bmp chars when text_t is 16 bit
1458 #if ENABLE_COMBINING && !UNICODE_3
1459 if (ecb_expect_false (IS_COMPOSE (chr)))
1460 if (compose_char *cc = rxvt_composite [chr])
1461 if (cc->c2 == NOCHAR)
1462 chr = cc->c1;
1463 #endif
1464
1465 #if 0
1466 FT_UInt glyphs [decltype (exp)::max_size];
1467
1468 for (int i = 0; i < nchrs; ++i)
1469 glyphs [i] = XftCharIndex (disp, f, chrs [i]);
1470
1471 for (int i = 0; i < nchrs; ++i)
1376 { 1472 {
1473 XGlyphInfo ep;
1474 XftGlyphExtents (disp, f, glyphs+i, 1, &ep);
1475 printf ("gs %4x g %4x + %3d,%3d o %3d,%3d wh %3d,%3d\n", chrs[i],glyphs[i],ep.x,ep.y,ep.xOff,ep.yOff,ep.width,ep.height);
1476 }
1477 #endif
1478
1479 FT_UInt glyph;
1480 int xOff;
1481
1482 #if XFT_CHAR_CACHE
1483 if (ecb_expect_true (IN_RANGE_INC (chr, char_cache_min, char_cache_max)))
1484 {
1485 glyph = glyph_cache [chr - char_cache_min];
1486 xOff = xoff_cache [chr - char_cache_min];
1487 }
1488 else
1489 #endif
1490 {
1377 FT_UInt glyph = XftCharIndex (disp, f, fc); 1491 glyph = XftCharIndex (disp, f, chr);
1492 XGlyphInfo extents;
1378 XftGlyphExtents (disp, f, &glyph, 1, &extents); 1493 XftGlyphExtents (disp, f, &glyph, 1, &extents);
1494 xOff = extents.xOff;
1495 }
1379 1496
1380 ep->glyph = glyph; 1497 ep->glyph = glyph;
1381 ep->x = x_ + (cwidth - extents.xOff >> 1); 1498 ep->x = x_;
1382 ep->y = y_ + ascent; 1499 ep->y = y_ + ascent;
1383 1500
1384 if (extents.xOff == 0) 1501 // the xft font cell might differ from the terminal font cell,
1502 // in which case we use the average between the two.
1503 ep->x += xOff ? cwidth - xOff >> 1 : 0;
1504
1505 // xft/freetype represent combining characters as characters with zero
1506 // width rendered over the previous character with some fonts, while
1507 // in other fonts, they are considered normal characters, while yet
1508 // in other fonts, they are shifted all over the place.
1509 // we handle the first two cases by keying off on xOff being 0
1510 // for zero-width chars. normally, we would add extents.xOff
1511 // of the base character here, but we don't have that, so we use cwidth.
1385 ep->x = x_ + cwidth; 1512 ep->x += xOff ? 0 : cwidth;
1386 1513
1387 ep++; 1514 ++ep;
1388 } 1515 }
1389 1516
1390 x_ += cwidth; 1517 x_ += cwidth;
1391 } 1518 }
1392 1519
… …
1394 { 1521 {
1395 if (ep != enc) 1522 if (ep != enc)
1396 { 1523 {
1397 rxvt_drawable &d2 = d.screen->scratch_drawable (w, h); 1524 rxvt_drawable &d2 = d.screen->scratch_drawable (w, h);
1398 1525
1399#ifdef HAVE_BG_PIXMAP 1526#ifdef HAVE_IMG
1400 Picture dst = 0; // the only assignment is done conditionally in the following if condition 1527 Picture dst = 0; // the only assignment is done conditionally in the following if condition
1401 1528
1402 if (term->bgPixmap.pixmap 1529 if (term->bg_img
1403 && (bg == Color_transparent || bg == Color_bg 1530 && (bg == Color_transparent || bg == Color_bg
1404 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2)))))) 1531 || (bg >= 0 && !term->pix_colors[bg].is_opaque () && ((dst = XftDrawPicture (d2))))))
1405 { 1532 {
1406 int src_x = x, src_y = y; 1533 int src_x = x, src_y = y;
1407 1534
1408 if (term->bgPixmap.is_parentOrigin ()) 1535 if (term->bg_flags & rxvt_term::BG_IS_TRANSPARENT)
1409 { 1536 {
1410 src_x += term->window_vt_x; 1537 src_x += term->window_vt_x;
1411 src_y += term->window_vt_y; 1538 src_y += term->window_vt_y;
1412 } 1539 }
1413 1540
1414 if (term->bgPixmap.pmap_width >= src_x + w 1541 if (term->bg_img->w >= src_x + w
1415 && term->bgPixmap.pmap_height >= src_y + h) 1542 && term->bg_img->h >= src_y + h)
1416 { 1543 {
1417 XCopyArea (disp, term->bgPixmap.pixmap, d2, gc, 1544 XCopyArea (disp, term->bg_img->pm, d2, gc,
1418 src_x, src_y, w, h, 0, 0); 1545 src_x, src_y, w, h, 0, 0);
1419 } 1546 }
1420 else 1547 else
1421 { 1548 {
1422 XGCValues gcv; 1549 XGCValues gcv;
1423 1550
1424 gcv.fill_style = FillTiled; 1551 gcv.fill_style = FillTiled;
1425 gcv.tile = term->bgPixmap.pixmap; 1552 gcv.tile = term->bg_img->pm;
1426 gcv.ts_x_origin = -src_x; 1553 gcv.ts_x_origin = -src_x;
1427 gcv.ts_y_origin = -src_y; 1554 gcv.ts_y_origin = -src_y;
1428 1555
1429 XChangeGC (disp, gc, 1556 XChangeGC (disp, gc,
1430 GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle, 1557 GCTile | GCTileStipXOrigin | GCTileStipYOrigin | GCFillStyle,
… …
1482 prop.width = prop.height = prop.ascent = prop.weight = prop.slant 1609 prop.width = prop.height = prop.ascent = prop.weight = prop.slant
1483 = rxvt_fontprop::unset; 1610 = rxvt_fontprop::unset;
1484 force_prop = false; 1611 force_prop = false;
1485 1612
1486 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++) 1613 for (rxvt_font **i = fonts.begin (); i != fonts.end (); i++)
1487 FONT_UNREF (*i); 1614 (*i)->unref ();
1488 1615
1489 for (pagemap **p = fmap.begin (); p != fmap.end (); p++) 1616 for (pagemap **p = fmap.begin (); p != fmap.end (); p++)
1490 delete *p; 1617 delete *p;
1491 1618
1492 free (fontdesc); fontdesc = 0; 1619 free (fontdesc); fontdesc = 0;
… …
1494 fonts.clear (); 1621 fonts.clear ();
1495 1622
1496 fallback = fallback_fonts; 1623 fallback = fallback_fonts;
1497} 1624}
1498 1625
1626void
1627rxvt_fontset::prepare_font (rxvt_font *font, codeset cs)
1628{
1629 font->set_term (term);
1630
1631 font->cs = cs;
1632 font->loaded = false;
1633}
1634
1499rxvt_font * 1635rxvt_font *
1500rxvt_fontset::new_font (const char *name, codeset cs) 1636rxvt_fontset::new_font (const char *name, codeset cs)
1501{ 1637{
1502 rxvt_font *f; 1638 rxvt_font *f;
1503 1639
… …
1519 f = new rxvt_font_x11; 1655 f = new rxvt_font_x11;
1520 } 1656 }
1521 else 1657 else
1522 f = new rxvt_font_x11; 1658 f = new rxvt_font_x11;
1523 1659
1524 f->set_term (term);
1525 f->set_name (strdup (name)); 1660 f->set_name (strdup (name));
1526 1661 prepare_font (f, cs);
1527 f->cs = cs;
1528 f->loaded = false;
1529 1662
1530 return f; 1663 return f;
1531} 1664}
1532 1665
1533///////////////////////////////////////////////////////////////////////////// 1666/////////////////////////////////////////////////////////////////////////////
1667
1668void
1669rxvt_fontset::push_font (rxvt_font *font)
1670{
1671 // the fontCount index is reserved for the overflow font, it is only
1672 // necessary when we get fontCount or more fonts, as they cannot be
1673 // represented in the rendition.
1674 if (fonts.size () == fontCount)
1675 {
1676 rxvt_font *f = new rxvt_font_overflow (this);
1677
1678 prepare_font (f, CS_UNICODE);
1679 fonts.push_back (f);
1680 }
1681
1682 fonts.push_back (font);
1683}
1534 1684
1535void 1685void
1536rxvt_fontset::add_fonts (const char *desc) 1686rxvt_fontset::add_fonts (const char *desc)
1537{ 1687{
1538 if (desc) 1688 if (desc)
… …
1567 cs = codeset_from_name (spec + sizeof ("codeset=") - 1); 1717 cs = codeset_from_name (spec + sizeof ("codeset=") - 1);
1568 else 1718 else
1569 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec); 1719 rxvt_warn ("unknown parameter '%s' in font specification, skipping.\n", spec);
1570 1720
1571 desc++; 1721 desc++;
1572 while (*desc <= ' ') desc++; 1722 while (*desc <= ' ' && *desc) desc++;
1573 } 1723 }
1574 1724
1575 end = strchr (desc, ','); 1725 end = strchr (desc, ',');
1576 if (!end) 1726 if (!end)
1577 end = desc + strlen (desc); 1727 end = desc + strlen (desc);
… …
1579 if (end - desc < 511) 1729 if (end - desc < 511)
1580 { 1730 {
1581 memcpy (buf, desc, end - desc); 1731 memcpy (buf, desc, end - desc);
1582 buf[end - desc] = 0; 1732 buf[end - desc] = 0;
1583 1733
1584 fonts.push_back (new_font (buf, cs)); 1734 push_font (new_font (buf, cs));
1585 } 1735 }
1586 else 1736 else
1587 rxvt_warn ("fontset element too long (>511 bytes), ignored."); 1737 rxvt_warn ("fontset element too long (>511 bytes), ignored.\n");
1588 1738
1589 desc = end + 1; 1739 desc = end + 1;
1590 } 1740 }
1591 while (*end); 1741 while (*end);
1592 } 1742 }
… …
1617{ 1767{
1618 clear (); 1768 clear ();
1619 1769
1620 fontdesc = strdup (desc); 1770 fontdesc = strdup (desc);
1621 1771
1622 fonts.push_back (new_font (0, CS_UNICODE)); 1772 push_font (new_font (0, CS_UNICODE));
1623 realize_font (0); 1773 realize_font (0);
1624 1774
1625 add_fonts (desc); 1775 add_fonts (desc);
1626 1776
1627 return true; 1777 return true;
… …
1638} 1788}
1639 1789
1640int 1790int
1641rxvt_fontset::find_font_idx (unicode_t unicode) 1791rxvt_fontset::find_font_idx (unicode_t unicode)
1642{ 1792{
1643 if (unicode >= 1<<20) 1793 // this limits fmap size. it has to accommodate COMPOSE_HI when UNICODE_3
1794 if (unicode > 0x1fffff)
1644 return 0; 1795 return 0;
1645 1796
1646 unicode_t hi = unicode >> 8; 1797 unicode_t hi = unicode >> 8;
1647 1798
1648 if (hi < fmap.size () 1799 if (hi < fmap.size ())
1649 && fmap[hi] 1800 if (pagemap *pm = fmap[hi])
1650 && (*fmap[hi])[unicode & 0xff] != 0xff) 1801 if ((*pm)[unicode & 0xff] != 0xff)
1651 return (*fmap[hi])[unicode & 0xff]; 1802 return (*pm)[unicode & 0xff];
1652 1803
1653 unsigned int i; 1804 unsigned int i;
1654 1805
1655 for (i = 0; i < fonts.size (); i++) 1806 for (i = 0; i < fonts.size (); i++)
1656 { 1807 {
… …
1672 goto next_font; 1823 goto next_font;
1673 1824
1674 bool careful; 1825 bool careful;
1675 if (f->has_char (unicode, &prop, careful)) 1826 if (f->has_char (unicode, &prop, careful))
1676 { 1827 {
1677 if (careful) 1828 i = (i << 1) | careful;
1678 i |= 128;
1679 1829
1680 goto found; 1830 goto found;
1681 } 1831 }
1682 1832
1683 next_font: 1833 next_font:
1684 if (i == fonts.size () - 1) 1834 if (i == fonts.size () - 1)
1685 { 1835 {
1836 // compose characters are handled by the default font, unless another font takes over
1837 // we do not go via the fallback list for speed reasons.
1838 if (IS_COMPOSE (unicode))
1839 return 0;
1840
1686 if (fallback->name) 1841 if (fallback->name)
1687 { 1842 {
1688 // search through the fallback list 1843 // search through the fallback list
1689 fonts.push_back (new_font (fallback->name, fallback->cs)); 1844 push_font (new_font (fallback->name, fallback->cs));
1690 fallback++; 1845 fallback++;
1691 } 1846 }
1692 else 1847 else
1693 { 1848 {
1694 // try to find a new font. 1849 // try to find a new font.
… …
1696 // way to configure this and xft is easier to hack in, 1851 // way to configure this and xft is easier to hack in,
1697 // while x11 has more framework in place already. 1852 // while x11 has more framework in place already.
1698 // TODO: this is a real resource hog, xft takes ages(?) 1853 // TODO: this is a real resource hog, xft takes ages(?)
1699#if XFT && USE_SLOW_LOOKUP 1854#if XFT && USE_SLOW_LOOKUP
1700 // grab the first xft font that seems suitable 1855 // grab the first xft font that seems suitable
1856 // TOOD: should go first for cellchar (spacing 110) then mono, then else
1701 FcPattern *p = FcPatternCreate (); 1857 FcPattern *p = FcPatternCreate ();
1702 1858
1703 FcCharSet *s = FcCharSetCreate (); 1859 FcCharSet *s = FcCharSetCreate ();
1704 FcCharSetAddChar (s, unicode); 1860 FcCharSetAddChar (s, unicode);
1705 FcPatternAddCharSet (p, FC_CHARSET, s); 1861 FcPatternAddCharSet (p, FC_CHARSET, s);
… …
1727 if (find_font (font) < 0) 1883 if (find_font (font) < 0)
1728 { 1884 {
1729 char fontname[4096]; 1885 char fontname[4096];
1730 snprintf (fontname, sizeof (fontname), "xft:%s", font); 1886 snprintf (fontname, sizeof (fontname), "xft:%s", font);
1731 1887
1732 fonts.push_back (new_font (fontname, CS_UNICODE)); 1888 push_font (new_font (fontname, CS_UNICODE));
1733 } 1889 }
1734 1890
1735 free (font); 1891 free (font);
1736 } 1892 }
1737#endif 1893#endif
… …
1749 while (hi >= fmap.size ()) 1905 while (hi >= fmap.size ())
1750 fmap.push_back (0); 1906 fmap.push_back (0);
1751 1907
1752 if (!fmap[hi]) 1908 if (!fmap[hi])
1753 { 1909 {
1754 fmap[hi] = (pagemap *)new pagemap; 1910 fmap[hi] = new pagemap;
1755 memset (fmap[hi], 0xff, sizeof (pagemap)); 1911 memset (fmap[hi], 0xff, sizeof (pagemap));
1756 } 1912 }
1757 1913
1758 (*fmap[hi])[unicode & 0xff] = i; 1914 (*fmap[hi])[unicode & 0xff] = i;
1759 } 1915 }
1760 1916
1761 return i; 1917 return i;
1762} 1918}
1763 1919
1764int
1765rxvt_fontset::find_font (unicode_t unicode)
1766{
1767 int id = find_font_idx (unicode);
1768
1769 return min<int> (fontCount, id & 127) | (id & 128 ? Careful : 0);
1770}

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