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author | RichieSams | 2014-12-30 15:22:43 -0600 |
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committer | RichieSams | 2014-12-30 15:40:33 -0600 |
commit | 08e3f21a8df184bc697e6c03adf968d0cbdbac21 (patch) | |
tree | f6d5da4d71e14925b0ec5786f93c544121efee85 /engines/sword25/util/double_serialization.h | |
parent | 97c35714ce3986b99848a780f6b195a63f8910b7 (diff) | |
download | scummvm-rg350-08e3f21a8df184bc697e6c03adf968d0cbdbac21.tar.gz scummvm-rg350-08e3f21a8df184bc697e6c03adf968d0cbdbac21.tar.bz2 scummvm-rg350-08e3f21a8df184bc697e6c03adf968d0cbdbac21.zip |
SWORD25: Rename double serialization file to better represent what it is
AKA functions, rather than a class
Diffstat (limited to 'engines/sword25/util/double_serialization.h')
-rw-r--r-- | engines/sword25/util/double_serialization.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/engines/sword25/util/double_serialization.h b/engines/sword25/util/double_serialization.h new file mode 100644 index 0000000000..e90338c369 --- /dev/null +++ b/engines/sword25/util/double_serialization.h @@ -0,0 +1,95 @@ +/* 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. + * + */ + +#ifndef DOUBLE_SERIALIZATION_H +#define DOUBLE_SERIALIZATION_H + +#include "common/types.h" + + +namespace Util { + +struct SerializedDouble { + uint32 significandOne; + uint32 signAndSignificandTwo; + int16 exponent; +}; + +struct CompactSerializedDouble { + uint32 signAndSignificandOne; + uint32 exponentAndSignificandTwo; +}; + +/** + * Encodes a double as two uint32 and a one int16 + * + * Supports denormalized numbers. Does NOT support NaN, or Inf + * + * @param value The value to encode + * @return The encoded value + */ +SerializedDouble encodeDouble(double value); +/** + * Decodes a previously encoded double + * + * @param value The value to decode + * @return The decoded value + */ +double decodeDouble(SerializedDouble value); + +/** + * Encodes a double as a uint64 + * + * Does NOT support denormalized numbers. Does NOT support NaN, or Inf + * + * @param value The value to encode + * @return The encoded value + */ +uint64 encodeDouble_64(double value); +/** + * Decodes a previously encoded double + * + * @param value The value to decode + * @return The decoded value + */ +double decodeDouble_64(uint64 value); + +/** + * Encodes a double as two uint32 + * + * Does NOT support denormalized numbers. Does NOT support NaN, or Inf + * + * @param value The value to encode + * @return The encoded value + */ +CompactSerializedDouble encodeDouble_Compact(double value); +/** + * Decodes a previously encoded double + * + * @param value The value to decode + * @return The decoded value + */ +double decodeDouble_Compact(CompactSerializedDouble value); + +} // End of namespace Sword25 + +#endif |