Imported Debian patch 1.1.1+rev1355-1debian/1.1.1+rev1355-1

1 files changed, 393 insertions, 0 deletions

diff --git a/util/alevt/lang.c b/util/alevt/lang.c
new file mode 100644
index 0000000..3a49307
--- /dev/null
+++ b/util/alevt/lang.c
@@ -0,0 +1,393 @@
+#include <string.h>
+#include <ctype.h>
+#include "misc.h"
+#include "vt.h"
+#include "lang.h"
+
+int latin1 = -1;
+
+
+static u8 lang_char[256];
+static u8 lang_chars[1+8+8][16] =
+{
+    { 0, 0x23,0x24,0x40,0x5b,0x5c,0x5d,0x5e,0x5f,0x60,0x7b,0x7c,0x7d,0x7e },
+
+    // for latin-1 font
+    // English (100%)
+    { 0,  '£', '$', '@', '«', '½', '»', '¬', '#', '­', '¼', '¦', '¾', '÷' },
+    // German (100%)
+    { 0,  '#', '$', '§', 'Ä', 'Ö', 'Ü', '^', '_', '°', 'ä', 'ö', 'ü', 'ß' },
+    // Swedish/Finnish/Hungarian (100%)
+    { 0,  '#', '¤', 'É', 'Ä', 'Ö', 'Å', 'Ü', '_', 'é', 'ä', 'ö', 'å', 'ü' },
+    // Italian (100%)
+    { 0,  '£', '$', 'é', '°', 'ç', '»', '¬', '#', 'ù', 'à', 'ò', 'è', 'ì' },
+    // French (100%)
+    { 0,  'é', 'ï', 'à', 'ë', 'ê', 'ù', 'î', '#', 'è', 'â', 'ô', 'û', 'ç' },
+    // Portuguese/Spanish (100%)
+    { 0,  'ç', '$', '¡', 'á', 'é', 'í', 'ó', 'ú', '¿', 'ü', 'ñ', 'è', 'à' },
+    // Czech/Slovak (60%)
+    { 0,  '#', 'u', 'c', 't', 'z', 'ý', 'í', 'r', 'é', 'á', 'e', 'ú', 's' },
+    // reserved (English mapping)
+    { 0,  '£', '$', '@', '«', '½', '»', '¬', '#', '­', '¼', '¦', '¾', '÷' },
+
+    // for latin-2 font
+    // Polish (100%)
+    { 0,  '#', 'ñ', '±', '¯', '¦', '£', 'æ', 'ó', 'ê', '¿', '¶', '³', '¼' },
+    // German (100%)
+    { 0,  '#', '$', '§', 'Ä', 'Ö', 'Ü', '^', '_', '°', 'ä', 'ö', 'ü', 'ß' },
+    // Estonian (100%)
+    { 0,  '#', 'õ', '©', 'Ä', 'Ö', '®', 'Ü', 'Õ', '¹', 'ä', 'ö', '¾', 'ü' },
+    // Lettish/Lithuanian (90%)
+    { 0,  '#', '$', '©', 'ë', 'ê', '®', 'è', 'ü', '¹', '±', 'u', '¾', 'i' },
+    // French (90%)
+    { 0,  'é', 'i', 'a', 'ë', 'ì', 'u', 'î', '#', 'e', 'â', 'ô', 'u', 'ç' },
+    // Serbian/Croation/Slovenian (100%)
+    { 0,  '#', 'Ë', 'È', 'Æ', '®', 'Ð', '©', 'ë', 'è', 'æ', '®', 'ð', '¹' },
+    // Czech/Slovak (100%)
+    { 0,  '#', 'ù', 'è', '»', '¾', 'ý', 'í', 'ø', 'é', 'á', 'ì', 'ú', '¹' },
+    // Rumanian (95%)
+    { 0,  '#', '¢', 'Þ', 'Â', 'ª', 'Ã', 'Î', 'i', 'þ', 'â', 'º', 'ã', 'î' },
+};
+
+/* Yankable latin charset :-)
+     !"#$%&'()*+,-./0123456789:;<=>?
+    @ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
+    `abcdefghijklmnopqrstuvwxyz{|}~
+     ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿
+    ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞß
+    àáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ
+*/
+
+
+static struct mark { u8 *g0, *latin1, *latin2; } marks[16] =
+{
+    /* none */		{ "#",
+    			  "¤",
+			  "$"					},
+    /* grave - ` */	{ " aeiouAEIOU",
+    			  "`àèìòùÀÈÌÒÙ",
+			  "`aeiouAEIOU"				},
+    /* acute - ' */	{ " aceilnorsuyzACEILNORSUYZ",
+			  "'ácéílnórsúýzÁCÉÍLNÓRSÚÝZ",
+			  "'áæéíåñóà¶úý¼ÁÆÉÍÅÑÓÀ¦Úݬ"		},
+    /* cirumflex - ^ */	{ " aeiouAEIOU",
+    			  "^âêîôûÂÊÎÔÛ",
+			  "^âeîôuÂEÎÔU"				},
+    /* tilde - ~ */	{ " anoANO",
+    			  "~ãñõÃÑÕ",
+			  "~anoANO"				},
+    /* ??? - ¯ */	{ "",
+    			  "",
+			  ""					},
+    /* breve - u */	{ "aA",
+    			  "aA",
+			  "ãÃ"					},
+    /* abovedot - · */	{ "zZ",
+    			  "zZ",
+			  "¿¯"					},
+    /* diaeresis ¨ */	{ "aeiouAEIOU",
+    			  "äëïöüÄËÏÖÜ",
+			  "äëiöüÄËIÖÜ"				},
+    /* ??? - . */	{ "",
+    			  "",
+			  ""					},
+    /* ringabove - ° */	{ " auAU",
+    			  "°åuÅU",
+			  "°aùAÙ"				},
+    /* cedilla - ¸ */	{ "cstCST",
+    			  "çstÇST",
+			  "çºþǪÞ"				},
+    /* ??? - _ */	{ " ",
+    			  "_",
+			  "_"					},
+    /* dbl acute - " */	{ " ouOU",
+    			  "\"ouOU",
+			  "\"õûÕÛ"				},
+    /* ogonek - \, */	{ "aeAE",
+    			  "aeAE",
+			  "±ê¡Ê"				},
+    /* caron - v */	{ "cdelnrstzCDELNRSTZ",
+			  "cdelnrstzCDELNRSTZ",
+			  "èïìµòø¹»¾ÈÏÌ¥ÒØ©«®"			},
+};
+
+
+static u8 g2map_latin1[] =
+   /*0123456789abcdef*/
+    " ¡¢£$¥#§¤'\"«    "
+    "°±²³×µ¶·÷'\"»¼½¾¿"
+    " `´^~   ¨.°¸_\"  "
+    "_¹®©            "
+    " ÆЪH ILLØ ºÞTNn"
+    "Kædðhiillø ßþtn\x7f";
+
+
+static u8 g2map_latin2[] =
+   /*0123456789abcdef*/
+    " icL$Y#§¤'\"<    "
+    "°   ×u  ÷'\">    "
+    " `´^~ ¢ÿ¨.°¸_½²·"
+    "- RC            "
+    "  ÐaH iL£O opTNn"
+    "K ðdhiil³o ßptn\x7f";
+
+
+void lang_init(void)
+{
+    int i;
+
+    memset(lang_char, 0, sizeof(lang_char));
+    for (i = 1; i <= 13; i++)
+	lang_char[lang_chars[0][i]] = i;
+}
+
+
+void conv2latin(u8 *p, int n, int lang)
+{
+    int c, gfx = 0, lat=0;
+
+  if ((latin1 == KOI8) && lang==12) { /* russian */
+    while (n--) {
+      c=*p;
+
+      if(c==0x1b) lat = !lat; /* ESC switches languages inside page */
+
+       if ( is_koi(c)) {
+         if (not gfx || (c & 0xa0) != 0x20) {
+            if(!lat) conv2koi8(p);
+         }
+       }
+	else if ((c & 0xe8) == 0)
+	    gfx = c & 0x10;
+	p++;
+   }
+ }
+else if ((latin1 == GREEK) && lang==15) { /* Hellas */
+    while (n--) {
+      c=*p;
+
+      if(c==0x1b) lat = !lat; /* ESC switches languages inside page */
+
+       if ( is_greek(c)) {
+         if (not gfx || (c & 0xa0) != 0x20) {
+            if(!lat) conv2greek(p);
+         }
+       }
+	else if ((c & 0xe8) == 0)
+	    gfx = c & 0x10;
+	p++;
+   }
+ }
+
+ else {
+    while (n--)
+    {
+	if (lang_char[c = *p])
+	{
+	    if (not gfx || (c & 0xa0) != 0x20) 
+		*p = lang_chars[lang + 1][lang_char[c]];
+	}
+	else if ((c & 0xe8) == 0)
+	    gfx = c & 0x10;
+	p++;
+    }
+  }
+}
+
+
+/* check for Greek chars - needs locale iso8859-7 set */
+int is_greek(int c)
+{
+  if( isalpha(c | 0x80)) return 1;
+  return 0;
+}
+
+
+/* check for russian chars - needs locale KOI8-R set */
+int is_koi(int c)
+{
+  if( isalpha(c | 0x80)) return 1;
+  if( c=='&' ) return 1;
+  return 0;
+}
+
+
+/* teletext to koi8-r conversion */
+void conv2koi8(u8 *p)
+{
+    u8 c;
+    static u8 l2koi[]={
+	0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9,
+	0xEA, 0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3,
+	0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xFF, 0xFA, 0xFB, 0xFC, 0xFD,
+	0xFE, 0xF9, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
+	0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1,
+	0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB,
+	0xDC, 0xDD, 0xDE, 0xDF
+    };
+
+      c= *p;
+      if ( (c >= 0x40) && (c <= 0x7f)) *p=l2koi[(c & 0x7f) - 0x40];
+      if (c=='&') *p='Ù';
+}
+
+
+/* teletext to iso8859-7 conversion */
+void conv2greek(u8 *p)
+{
+    u8 c;
+   static u8 l2greek[]={
+/* 1 @ 0x40->ú*/0xc0,
+/* 2 A 0x41->Á*/0xc1,
+/* 3 B 0x42->Â*/0xc2,
+/* 4 C 0x43->Ã*/0xc3,
+/* 5 D 0x44->Ä*/0xc4,
+/* 6 E 0x45->Å*/0xc5,
+/* 7 F 0x46->Æ*/0xc6,
+/* 8 G 0x47->Ç*/0xc7,
+/* 9 H 0x48->È*/0xc8,
+/*10 I 0x49->É*/0xc9,
+/*11 J 0x4a->Ê*/0xca,
+/*12 K 0x4b->Ë*/0xcb,
+/*13 L 0x4c->Ì*/0xcc,
+/*14 M 0x4d->Í*/0xcd,
+/*15 N 0x4e->Î*/0xce,
+/*16 O 0x4f->Ï*/0xcf,
+/*17 P 0x50->Ð*/0xd0,
+/*18 Q 0x51->Ñ*/0xd1,
+/*19 R 0x52->?*/0x52,
+/*20 S 0x53->Ó*/0xd3,
+/*21 T 0x54->Ô*/0xd4,
+/*22 U 0x55->Õ*/0xd5,
+/*23 V 0x56->Ö*/0xd6,
+/*24 W 0x57->÷*/0xd7,
+/*25 X 0x58->Ø*/0xd8,
+/*26 Y 0x59->Ù*/0xd9,
+/*27 Z 0x5a->?*/0x5a,
+/*28 [ 0x5b->?*/0x5b,
+/*!29 \ 0x5c->Ü*/0xdc,
+/*!30 ] 0x5d->Ý*/0xdd,
+/*!31 ^ 0x5e->Þ*/0xde,
+/*!32 _ 0x5f->ß*/0xdf,
+/*33 ` 0x60->?*/0x60,
+/*!34 a 0x61->á*/0xe1,
+/*!35 b 0x62->â*/0xe2,
+/*!36 c 0x63->ã*/0xe3,
+/*!37 d 0x64->ä*/0xe4,
+/*!38 e 0x65->å*/0xe5,
+/*!39 f 0x66->æ*/0xe6,
+/*!40 g 0x67->ç*/0xe7,
+/*!41 h 0x68->è*/0xe8,
+/*!42 i 0x69->é*/0xe9,
+/*!43 j 0x6a->ê*/0xea,
+/*!44 k 0x6b->ë*/0xeb,
+/*!45 l 0x6c->ì*/0xec,
+/*!46 m 0x6d->í*/0xed,
+/*!47 n 0x6e->î*/0xee,
+/*!48 o 0x6f->ï*/0xef,
+/*!49 p 0x70->ð*/0xf0,
+/*!50 q 0x71->ñ*/0xf1,
+/*!51 r 0x72->ò*/0xf2,
+/*!52 s 0x73->ó*/0xf3,
+/*!53 t 0x74->ô*/0xf4,
+/*!54 u 0x75->õ*/0xf5,
+/*!55 v 0x76->ö*/0xf6,
+/*!56 w 0x77->÷*/0xf7,
+/*!57 x 0x78->ø*/0xf8,
+/*!58 y 0x79->ù*/0xf9,
+/*59 z 0x7a->ú(ìå ôüíï)*/0xc0,
+/*60 { 0x7b->?*/0x7b,
+/*!61 | 0x7c->ü*/0xfc,
+/*!62 } 0x7d->ý*/0xfd,
+/*!63 ~ 0x7e->þ*/0xfe,
+/*64   0x7f->?*/0x7f
+  };
+      c= *p;
+      if ( (c >= 0x40) && (c <= 0x7f)) *p=l2greek[(c & 0x7f) - 0x40];
+}
+
+
+void init_enhance(struct enhance *eh)
+{
+    eh->next_des = 0;
+}
+
+
+void add_enhance(struct enhance *eh, int dcode, u32 *t)
+{
+
+    if (dcode == eh->next_des)
+    {
+	memcpy(eh->trip + dcode * 13, t, 13 * sizeof(*t));
+	eh->next_des++;
+    }
+    else
+	eh->next_des = -1;
+}
+
+
+void enhance(struct enhance *eh, struct vt_page *vtp)
+{
+    int row = 0;
+    u32 *p, *e;
+
+    if (eh->next_des < 1)
+	return;
+
+    for (p = eh->trip, e = p + eh->next_des * 13; p < e; p++)
+	if (*p % 2048 != 2047)
+	{
+	    int adr = *p % 64;
+	    int mode = *p / 64 % 32;
+	    int data = *p / 2048 % 128;
+
+	    if (adr < 40)
+	    {
+		// col functions
+		switch (mode)
+		{
+		    case 15: // char from G2 set
+			if (adr < W && row < H)
+			    if (latin1==LATIN1)
+				vtp->data[row][adr] = g2map_latin1[data-32];
+			    else if (latin1==LATIN2)
+				vtp->data[row][adr] = g2map_latin2[data-32];
+			break;
+		    case 16 ... 31: // char from G0 set with diacritical mark
+			if (adr < W && row < H)
+			{
+			    struct mark *mark = marks + (mode - 16);
+			    u8 *x;
+
+			    if (x = strchr(mark->g0, data))
+				if (latin1==LATIN1)
+				    data = mark->latin1[x - mark->g0];
+				else if (latin1==LATIN2)
+				    data = mark->latin2[x - mark->g0];
+			    vtp->data[row][adr] = data;
+			}
+			break;
+		}
+	    }
+	    else
+	    {
+		// row functions
+		if ((adr -= 40) == 0)
+		    adr = 24;
+		
+		switch (mode)
+		{
+		    case 1: // full row color
+			row = adr;
+			break;
+		    case 4: // set active position
+			row = adr;
+			break;
+		    case 7: // address row 0 (+ full row color)
+			if (adr == 23)
+			    row = 0;
+			break;
+		}
+	    }
+	}
+}