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/*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sidplay/sidendian.h>
#include "config.h"
#include "SidTuneMod.h"
#include "MD5/MD5.h"
void SidTuneMod::createMD5(MD5& myMD5)
{
if (status)
{ // Include C64 data.
md5_byte_t tmp[2];
myMD5.append (cache.get()+fileOffset,info.c64dataLen);
// Include INIT and PLAY address.
endian_little16 (tmp,info.initAddr);
myMD5.append (tmp,sizeof(tmp));
endian_little16 (tmp,info.playAddr);
myMD5.append (tmp,sizeof(tmp));
// Include number of songs.
endian_little16 (tmp,info.songs);
myMD5.append (tmp,sizeof(tmp));
{ // Include song speed for each song.
uint_least16_t currentSong = info.currentSong;
for (uint_least16_t s = 1; s <= info.songs; s++)
{
selectSong (s);
myMD5.append (&info.songSpeed,sizeof(info.songSpeed));
}
// Restore old song
selectSong (currentSong);
}
// Deal with PSID v2NG clock speed flags: Let only NTSC
// clock speed change the MD5 fingerprint. That way the
// fingerprint of a PAL-speed sidtune in PSID v1, v2, and
// PSID v2NG format is the same.
if (info.clockSpeed == SIDTUNE_CLOCK_NTSC)
myMD5.append (&info.clockSpeed,sizeof(info.clockSpeed));
// NB! If the fingerprint is used as an index into a
// song-lengths database or cache, modify above code to
// allow for PSID v2NG files which have clock speed set to
// SIDTUNE_CLOCK_ANY. If the SID player program fully
// supports the SIDTUNE_CLOCK_ANY setting, a sidtune could
// either create two different fingerprints depending on
// the clock speed chosen by the player, or there could be
// two different values stored in the database/cache.
}
}
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