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Diffstat (limited to 'engines/kyra/engine/util.cpp')
| -rw-r--r-- | engines/kyra/engine/util.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/engines/kyra/engine/util.cpp b/engines/kyra/engine/util.cpp new file mode 100644 index 0000000000..ae5b833858 --- /dev/null +++ b/engines/kyra/engine/util.cpp @@ -0,0 +1,148 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "kyra/engine/util.h" + +namespace Kyra { + +int Util::decodeString1(const char *src, char *dst) { + static const uint8 decodeTable1[] = { + 0x20, 0x65, 0x74, 0x61, 0x69, 0x6E, 0x6F, 0x73, 0x72, 0x6C, 0x68, + 0x63, 0x64, 0x75, 0x70, 0x6D + }; + + static const uint8 decodeTable2[] = { + 0x74, 0x61, 0x73, 0x69, 0x6F, 0x20, 0x77, 0x62, 0x20, 0x72, 0x6E, + 0x73, 0x64, 0x61, 0x6C, 0x6D, 0x68, 0x20, 0x69, 0x65, 0x6F, 0x72, + 0x61, 0x73, 0x6E, 0x72, 0x74, 0x6C, 0x63, 0x20, 0x73, 0x79, 0x6E, + 0x73, 0x74, 0x63, 0x6C, 0x6F, 0x65, 0x72, 0x20, 0x64, 0x74, 0x67, + 0x65, 0x73, 0x69, 0x6F, 0x6E, 0x72, 0x20, 0x75, 0x66, 0x6D, 0x73, + 0x77, 0x20, 0x74, 0x65, 0x70, 0x2E, 0x69, 0x63, 0x61, 0x65, 0x20, + 0x6F, 0x69, 0x61, 0x64, 0x75, 0x72, 0x20, 0x6C, 0x61, 0x65, 0x69, + 0x79, 0x6F, 0x64, 0x65, 0x69, 0x61, 0x20, 0x6F, 0x74, 0x72, 0x75, + 0x65, 0x74, 0x6F, 0x61, 0x6B, 0x68, 0x6C, 0x72, 0x20, 0x65, 0x69, + 0x75, 0x2C, 0x2E, 0x6F, 0x61, 0x6E, 0x73, 0x72, 0x63, 0x74, 0x6C, + 0x61, 0x69, 0x6C, 0x65, 0x6F, 0x69, 0x72, 0x61, 0x74, 0x70, 0x65, + 0x61, 0x6F, 0x69, 0x70, 0x20, 0x62, 0x6D + }; + + int size = 0; + uint cChar = 0; + while ((cChar = *src++) != 0) { + if (cChar & 0x80) { + cChar &= 0x7F; + int index = (cChar & 0x78) >> 3; + *dst++ = decodeTable1[index]; + ++size; + assert(cChar < sizeof(decodeTable2)); + cChar = decodeTable2[cChar]; + } + + *dst++ = cChar; + ++size; + } + + *dst++ = 0; + return size; +} + +void Util::decodeString2(const char *src, char *dst) { + if (!src || !dst) + return; + + char out = 0; + while ((out = *src) != 0) { + if (*src == 0x1B) { + ++src; + out = *src + 0x7F; + } + *dst++ = out; + ++src; + } + + *dst = 0; +} + +void Util::convertDOSToISO(char *str) { + uint8 *s = (uint8 *)str; + + for (; *s; ++s) { + if (*s >= 128) { + uint8 c = _charMapDOSToISO[*s - 128]; + + if (!c) + c = 0x20; + + *s = c; + } + } +} + +void Util::convertISOToDOS(char *str) { + while (*str) + convertISOToDOS(*str++); +} + +void Util::convertISOToDOS(char &c) { + uint8 code = (uint8)c; + if (code >= 128) { + code = _charMapISOToDOS[code - 128]; + if (!code) + code = 0x20; + } + + c = code; +} + +// CP850 to ISO-8859-1 (borrowed from engines/saga/font_map.cpp) +const uint8 Util::_charMapDOSToISO[128] = { + 199, 252, 233, 226, 228, 224, 229, 231, 234, 235, 232, + 239, 238, 236, 196, 197, 201, 230, 198, 244, 246, 242, + 251, 249, 255, 214, 220, 248, 163, 216, 215, 0, 225, + 237, 243, 250, 241, 209, 170, 186, 191, 174, 172, 189, + 188, 161, 171, 187, 0, 0, 0, 0, 0, 193, 194, + 192, 169, 0, 0, 0, 0, 162, 165, 0, 0, 0, + 0, 0, 0, 0, 227, 195, 0, 0, 0, 0, 0, + 0, 0, 164, 240, 208, 202, 203, 200, 0, 205, 206, + 207, 0, 0, 0, 0, 166, 204, 0, 211, 223, 212, + 210, 245, 213, 181, 254, 222, 218, 219, 217, 253, 221, + 175, 180, 173, 177, 0, 190, 182, 167, 247, 184, 176, + 168, 183, 185, 179, 178, 0, 160 +}; + +// ISO-8859-1 to CP850 +const uint8 Util::_charMapISOToDOS[128] = { + 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, 189, 156, 207, 190, 221, 245, 249, 184, 166, 174, + 170, 240, 169, 238, 248, 241, 253, 252, 239, 230, 244, + 250, 247, 251, 167, 175, 172, 171, 243, 168, 183, 181, + 182, 199, 142, 143, 146, 128, 212, 144, 210, 211, 222, + 214, 215, 216, 209, 165, 227, 224, 226, 229, 153, 158, + 157, 235, 233, 234, 154, 237, 232, 225, 133, 160, 131, + 198, 132, 134, 145, 135, 138, 130, 136, 137, 141, 161, + 140, 139, 208, 164, 149, 162, 147, 228, 148, 246, 155, + 151, 163, 150, 129, 236, 231, 152 +}; + +} // End of namespace Kyra |