From dd7d69515391322e37215fad385ff2c59f80a68b Mon Sep 17 00:00:00 2001
From: Björn Stenberg <bjorn@haxx.se>
Date: Sun, 11 Aug 2002 09:22:40 +0000
Subject: Forgot to add the new files

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1668 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/unicode.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 firmware/unicode.c

(limited to 'firmware/unicode.c')

diff --git a/firmware/unicode.c b/firmware/unicode.c
new file mode 100644
index 0000000000..150dd5171e
--- /dev/null
+++ b/firmware/unicode.c
@@ -0,0 +1,101 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Alex Gitelman
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "unicode.h"
+#include "string.h"
+
+#define MAX_TYPE 3
+
+unsigned char *conversion_table[255];
+unsigned char *reverse_conversion_table[255];
+
+static unsigned char page_04[] = { 
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    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,
+    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, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFF,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
+};
+
+void install_unicode_tables(void)
+{
+    install_conversion_table(0x04, page_04);
+}
+
+void unicode_init(void)
+{
+    memset(conversion_table, 0, sizeof(conversion_table));
+    memset(reverse_conversion_table, 0, sizeof(reverse_conversion_table));
+    install_unicode_tables();
+}
+
+/**
+Convertion table defines how chars in ing given page map to ascii
+*/
+void install_conversion_table(unsigned char page, unsigned char* conv_table)
+{
+    if (conv_table!=0)
+        conversion_table[page] = conv_table;
+    else
+        conversion_table[page] = 0;
+}
+
+void install_reverse_conversion_table(unsigned char page, 
+                                      unsigned char* rev_conv_table)
+{
+    if (rev_conv_table!=0)
+        reverse_conversion_table[page] = rev_conv_table;
+    else
+        reverse_conversion_table[page] = 0;
+}
+
+
+unsigned char from_unicode(const unsigned char *uni_char)
+{
+    /*
+       Here we should get proper code page conversions. 
+       For now hack for Cyrrilic->Unicode
+    */
+    unsigned char *table = conversion_table[uni_char[0]];
+    if (table!=0)
+        return table[uni_char[1]];
+    /* If page is not present -> no conversion */
+    return uni_char[1];
+
+}
+
+void to_unicode(unsigned char c, unsigned char page, unsigned char *uni_char)
+{
+    unsigned char *table = reverse_conversion_table[page];
+    if (table!=0)
+        uni_char[1] = table[c];
+    else
+        uni_char[1] = c;
+    uni_char[0] = page;
+}
-- 
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