/* $NetBSD: wsfont.c,v 1.28 2002/03/21 03:26:55 enami Exp $ */ /*- * Copyright (c) 1999, 2000, 2001, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include __KERNEL_RCSID(0, "$NetBSD: wsfont.c,v 1.28 2002/03/21 03:26:55 enami Exp $"); #include "opt_wsfont.h" #include #include #include #include #include #include #include #include #undef HAVE_FONT #ifdef FONT_QVSS8x15 #define HAVE_FONT 1 #include #endif #ifdef FONT_GALLANT12x22 #define HAVE_FONT 1 #include #endif #ifdef FONT_LUCIDA16x29 #define HAVE_FONT 1 #include #endif #ifdef FONT_VT220L8x8 #define HAVE_FONT 1 #include #endif #ifdef FONT_VT220L8x10 #define HAVE_FONT 1 #include #endif #ifdef FONT_SONY8x16 #define HAVE_FONT 1 #include #endif #ifdef FONT_SONY12x24 #define HAVE_FONT 1 #include #endif #ifdef FONT_OMRON12x20 #define HAVE_FONT 1 #include #endif /* Make sure we always have at least one font. */ #ifndef HAVE_FONT #define HAVE_FONT 1 #define FONT_BOLD8x16 1 #endif #ifdef FONT_BOLD8x16 #include #endif #define WSFONT_IDENT_MASK 0xffffff00 #define WSFONT_IDENT_SHIFT 8 #define WSFONT_BITO_MASK 0x000000f0 #define WSFONT_BITO_SHIFT 4 #define WSFONT_BYTEO_MASK 0x0000000f #define WSFONT_BYTEO_SHIFT 0 #define WSFONT_BUILTIN 0x01 /* In wsfont.c */ #define WSFONT_STATIC 0x02 /* Font structures not malloc()ed */ #define WSFONT_COPY 0x04 /* Copy of existing font in table */ /* Placeholder struct used for linked list */ struct font { TAILQ_ENTRY(font) chain; struct wsdisplay_font *font; u_int lockcount; u_int cookie; u_int flags; }; /* Our list of built-in fonts */ static struct font builtin_fonts[] = { #ifdef FONT_BOLD8x16 { { NULL }, &bold8x16, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_ISO8x16 { { NULL }, &iso8x16, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_COURIER11x18 { { NULL }, &courier11x18, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_GALLANT12x22 { { NULL }, &gallant12x22, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_LUCIDA16x29 { { NULL }, &lucida16x29, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_QVSS8x15 { { NULL }, &qvss8x15, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_VT220L8x8 { { NULL }, &vt220l8x8, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_VT220L8x10 { { NULL }, &vt220l8x10, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_SONY8x16 { { NULL }, &sony8x16, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_SONY12x24 { { NULL }, &sony12x24, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif #ifdef FONT_OMRON12x20 { { NULL }, &omron12x20, 0, 0, WSFONT_STATIC | WSFONT_BUILTIN }, #endif { { NULL }, NULL, 0, 0, 0 }, }; static TAILQ_HEAD(,font) list; static int ident; /* Reverse the bit order in a byte */ static const u_char reverse[256] = { 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, }; static struct font *wsfont_find0(int, int); static struct font *wsfont_add0(struct wsdisplay_font *, int); static void wsfont_revbit(struct wsdisplay_font *); static void wsfont_revbyte(struct wsdisplay_font *); static int __inline__ wsfont_make_cookie(int, int, int); static int __inline__ wsfont_make_cookie(int ident, int bito, int byteo) { return ((ident & WSFONT_IDENT_MASK) | (bito << WSFONT_BITO_SHIFT) | (byteo << WSFONT_BYTEO_SHIFT)); } static void wsfont_revbit(struct wsdisplay_font *font) { u_char *p, *m; p = (u_char *)font->data; m = p + font->stride * font->numchars * font->fontheight; for (; p < m; p++) *p = reverse[*p]; } static void wsfont_revbyte(struct wsdisplay_font *font) { int x, l, r, nr; u_char *rp; if (font->stride == 1) return; rp = (u_char *)font->data; nr = font->numchars * font->fontheight; while (nr--) { l = 0; r = font->stride - 1; while (l < r) { x = rp[l]; rp[l] = rp[r]; rp[r] = x; l++, r--; } rp += font->stride; } } void wsfont_enum(void (*cb)(char *, int, int, int)) { struct wsdisplay_font *f; struct font *ent; TAILQ_FOREACH(ent, &list, chain) { f = ent->font; cb(f->name, f->fontwidth, f->fontheight, f->stride); } } void wsfont_init(void) { struct font *ent; static int again; int i; if (again != 0) return; again = 1; TAILQ_INIT(&list); ent = builtin_fonts; for (i = 0; builtin_fonts[i].font != NULL; i++, ent++) { ident += (1 << WSFONT_IDENT_SHIFT); ent->cookie = wsfont_make_cookie(ident, ent->font->bitorder, ent->font->byteorder); TAILQ_INSERT_TAIL(&list, ent, chain); } } static struct font * wsfont_find0(int cookie, int mask) { struct font *ent; TAILQ_FOREACH(ent, &list, chain) { if ((ent->cookie & mask) == (cookie & mask)) return (ent); } return (NULL); } int wsfont_matches(struct wsdisplay_font *font, char *name, int width, int height, int stride) { if (height != 0 && font->fontheight != height) return (0); if (width != 0 && font->fontwidth != width) return (0); if (stride != 0 && font->stride != stride) return (0); if (name != NULL && strcmp(font->name, name) != 0) return (0); return (1); } int wsfont_find(char *name, int width, int height, int stride, int bito, int byteo) { struct font *ent; TAILQ_FOREACH(ent, &list, chain) { if (wsfont_matches(ent->font, name, width, height, stride)) return (wsfont_make_cookie(ent->cookie, bito, byteo)); } return (-1); } static struct font * wsfont_add0(struct wsdisplay_font *font, int copy) { struct font *ent; size_t size; ent = malloc(sizeof(struct font), M_DEVBUF, M_WAITOK | M_ZERO); /* Is this font statically allocated? */ if (!copy) { ent->font = font; ent->flags = WSFONT_STATIC; } else { ent->font = malloc(sizeof(struct wsdisplay_font), M_DEVBUF, M_WAITOK); memcpy(ent->font, font, sizeof(*ent->font)); size = font->fontheight * font->numchars * font->stride; ent->font->data = malloc(size, M_DEVBUF, M_WAITOK); memcpy(ent->font->data, font->data, size); ent->font->name = malloc(strlen(font->name) + 1, M_DEVBUF, M_WAITOK); strcpy(ent->font->name, font->name); } TAILQ_INSERT_TAIL(&list, ent, chain); return (ent); } int wsfont_add(struct wsdisplay_font *font, int copy) { struct font *ent; /* Don't allow exact duplicates */ if (wsfont_find(font->name, font->fontwidth, font->fontheight, font->stride, 0, 0) >= 0) return (EEXIST); ent = wsfont_add0(font, copy); ident += (1 << WSFONT_IDENT_SHIFT); ent->cookie = wsfont_make_cookie(ident, font->bitorder, font->byteorder); return (0); } int wsfont_remove(int cookie) { struct font *ent; if ((ent = wsfont_find0(cookie, 0xffffffff)) == NULL) return (ENOENT); if ((ent->flags & WSFONT_BUILTIN) != 0 || ent->lockcount != 0) return (EBUSY); if ((ent->flags & WSFONT_STATIC) == 0) { free(ent->font->data, M_DEVBUF); free(ent->font->name, M_DEVBUF); free(ent->font, M_DEVBUF); } TAILQ_REMOVE(&list, ent, chain); free(ent, M_DEVBUF); return (0); } int wsfont_lock(int cookie, struct wsdisplay_font **ptr) { struct font *ent, *neu; int bito, byteo; if ((ent = wsfont_find0(cookie, 0xffffffff)) == NULL) { if ((ent = wsfont_find0(cookie, WSFONT_IDENT_MASK)) == NULL) return (ENOENT); if (ent->lockcount != 0) { neu = wsfont_add0(ent->font, 1); neu->flags |= WSFONT_COPY; ent = neu; } bito = (cookie & WSFONT_BITO_MASK) >> WSFONT_BITO_SHIFT; byteo = (cookie & WSFONT_BYTEO_MASK) >> WSFONT_BYTEO_SHIFT; if (bito && bito != ent->font->bitorder) { wsfont_revbit(ent->font); ent->font->bitorder = bito; } if (byteo && byteo != ent->font->byteorder) { wsfont_revbyte(ent->font); ent->font->byteorder = byteo; } ent->cookie = cookie; } ent->lockcount++; *ptr = ent->font; return (0); } int wsfont_unlock(int cookie) { struct font *ent; if ((ent = wsfont_find0(cookie, 0xffffffff)) == NULL) return (ENOENT); if (ent->lockcount == 0) panic("wsfont_unlock: font not locked\n"); if (--ent->lockcount == 0 && (ent->flags & WSFONT_COPY) != 0) wsfont_remove(cookie); return (0); } /* * Unicode to font encoding mappings */ /* * To save memory, font encoding tables use a two level lookup. First the * high byte of the Unicode is used to lookup the level 2 table, then the * low byte indexes that table. Level 2 tables that are not needed are * omitted (NULL), and both level 1 and level 2 tables have base and size * attributes to keep their size down. */ struct wsfont_level1_glyphmap { const struct wsfont_level2_glyphmap **level2; int base; /* High byte for first level2 entry */ int size; /* Number of level2 entries */ }; struct wsfont_level2_glyphmap { int base; /* Low byte for first character */ int size; /* Number of characters */ const void *chars; /* Pointer to character number entries */ int width; /* Size of each entry in bytes (1,2,4) */ }; #define null16 \ NULL, NULL, NULL, NULL, \ NULL, NULL, NULL, NULL, \ NULL, NULL, NULL, NULL, \ NULL, NULL, NULL, NULL /* * IBM 437 maps */ static const u_int8_t ibm437_chars_0[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100,101,102,103,104,105,106,107,108,109,110,111, 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255,173,155,156, 0, 157, 0, 0, 0, 0, 166,174,170, 0, 0, 0, 0, 241,253, 0, 0, 0, 0, 249, 0, 0, 167,175,172,171, 0, 168, 0, 0, 0, 0, 142,143,146,128, 0, 144, 0, 0, 0, 0, 0, 0, 0, 165, 0, 0, 0, 0, 153, 0, 0, 0, 0, 0, 154, 0, 0, 0, 133,160,131, 0, 132,134,145,135,138,130,136,137,141,161,140,139, 0, 164,149,162,147, 0, 148,246, 0, 151,163,150,129, 0, 0, 152 }; static const u_int8_t ibm437_chars_1[] = { 159 }; static const u_int8_t ibm437_chars_3[] = { 226, 0, 0, 0, 0, 233, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 228, 0, 0, 232, 0, 0, 234, 0, 0, 0, 0, 0, 0, 0, 224,225, 0, 235,238, 0, 0, 0, 0, 0, 0, 230, 0, 0, 0, 227, 0, 0, 229,231 }; static const u_int8_t ibm437_chars_32[] = { 252, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 158 }; static const u_int8_t ibm437_chars_34[] = { 237, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 248,250,251, 0, 0, 0, 236, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 239, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 247, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,240, 0, 0,243, 242 }; static const u_int8_t ibm437_chars_35[] = { 169, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 244,245 }; static const u_int8_t ibm437_chars_37[] = { 196,205,179,186, 0, 0, 0, 0, 0, 0, 0, 0, 218,213,214,201, 191,184,183,187,192,212,211,200,217,190,189,188,195,198, 0, 0, 199, 0, 0, 204,180,181, 0, 0, 182, 0, 0, 185,194, 0, 0, 209, 210, 0, 0, 203,193, 0, 0, 207,208, 0, 0, 202,197, 0, 0, 216, 0, 0, 215, 0, 0, 0, 0, 0, 0, 0, 0, 206, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 223, 0, 0, 0, 220, 0, 0, 0, 219, 0, 0, 0, 221, 0, 0, 0, 222,176,177,178, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 254 }; static const struct wsfont_level2_glyphmap ibm437_level2_0 = { 0, 256, ibm437_chars_0, 1 }; static const struct wsfont_level2_glyphmap ibm437_level2_1 = { 146, 1, ibm437_chars_1, 1 }; static const struct wsfont_level2_glyphmap ibm437_level2_3 = { 147, 50, ibm437_chars_3, 1 }; static const struct wsfont_level2_glyphmap ibm437_level2_32 = { 127, 41, ibm437_chars_32, 1 }; static const struct wsfont_level2_glyphmap ibm437_level2_34 = { 5, 97, ibm437_chars_34, 1 }; static const struct wsfont_level2_glyphmap ibm437_level2_35 = { 16, 18, ibm437_chars_35, 1 }; static const struct wsfont_level2_glyphmap ibm437_level2_37 = { 0, 161, ibm437_chars_37, 1 }; static const struct wsfont_level2_glyphmap *ibm437_level1[] = { &ibm437_level2_0, &ibm437_level2_1, NULL, &ibm437_level2_3, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, &ibm437_level2_32, NULL, &ibm437_level2_34, &ibm437_level2_35, NULL, &ibm437_level2_37 }; /* * ISO-8859-7 maps */ static const u_int8_t iso7_chars_0[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100,101,102,103,104,105,106,107,108,109,110,111, 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, 160, 0, 0, 163, 0, 0, 166,167,168,169, 0, 171,172,173, 0, 0, 176,177,178,179,180, 0, 0, 183, 0, 0, 0, 187, 0, 189 }; static const u_int8_t iso7_chars_3[] = { 182, 0, 184,185,186, 0, 188, 0, 190,191,192,193,194,195,196,197, 198,199,200,201,202,203,204,205,206,207,208,209, 0, 211,212,213, 214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229, 230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245, 246,247,248,249,250,251,252,253,254, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 181 }; static const u_int8_t iso7_chars_32[] = { 175, 0, 0, 0, 0, 162, 0, 161 }; static const struct wsfont_level2_glyphmap iso7_level2_0 = { 0, 190, iso7_chars_0, 1 }; static const struct wsfont_level2_glyphmap iso7_level2_3 = { 134, 111, iso7_chars_3, 1 }; static const struct wsfont_level2_glyphmap iso7_level2_32 = { 20, 8, iso7_chars_32, 1 }; static const struct wsfont_level2_glyphmap *iso7_level1[] = { &iso7_level2_0, NULL, NULL, &iso7_level2_3, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, &iso7_level2_32 }; static const struct wsfont_level1_glyphmap encodings[] = { { NULL, 0, 0 }, /* WSDISPLAY_FONTENC_ISO */ { ibm437_level1, 0, 38 }, /* WSDISPLAY_FONTENC_IBM */ { NULL, 0, 0 }, /* WSDISPLAY_FONTENC_PCVT */ { iso7_level1, 0, 33 }, /* WSDISPLAY_FONTENC_ISO7 */ }; #define MAX_ENCODING (sizeof(encodings) / sizeof(encodings[0])) /* * Remap Unicode character to glyph */ int wsfont_map_unichar(struct wsdisplay_font *font, int c) { const struct wsfont_level1_glyphmap *map1; const struct wsfont_level2_glyphmap *map2; int hi, lo; if (font->encoding == WSDISPLAY_FONTENC_ISO) return (c); if (font->encoding < 0 || font->encoding > MAX_ENCODING) return (-1); hi = (c >> 8); lo = c & 255; map1 = &encodings[font->encoding]; if (hi < map1->base || hi >= map1->base + map1->size) return (-1); map2 = map1->level2[hi - map1->base]; if (map2 == NULL || lo < map2->base || lo >= map2->base + map2->size) return (-1); lo -= map2->base; switch(map2->width) { case 1: c = (((const u_int8_t *)map2->chars)[lo]); break; case 2: c = (((const u_int16_t *)map2->chars)[lo]); break; case 4: c = (((const u_int32_t *)map2->chars)[lo]); break; } if (c == 0 && lo != 0) return (-1); return (c); }