diff options
Diffstat (limited to 'plugins/adplug/adplug/player.cpp')
-rw-r--r-- | plugins/adplug/adplug/player.cpp | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/plugins/adplug/adplug/player.cpp b/plugins/adplug/adplug/player.cpp new file mode 100644 index 00000000..9a0061af --- /dev/null +++ b/plugins/adplug/adplug/player.cpp @@ -0,0 +1,70 @@ +/* + * Adplug - Replayer for many OPL2/OPL3 audio file formats. + * Copyright (C) 1999 - 2007 Simon Peter, <dn.tlp@gmx.net>, et al. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * player.cpp - Replayer base class, by Simon Peter <dn.tlp@gmx.net> + */ + +#include "player.h" +#include "adplug.h" +#include "silentopl.h" + +/***** CPlayer *****/ + +const unsigned short CPlayer::note_table[12] = + {363, 385, 408, 432, 458, 485, 514, 544, 577, 611, 647, 686}; + +const unsigned char CPlayer::op_table[9] = + {0x00, 0x01, 0x02, 0x08, 0x09, 0x0a, 0x10, 0x11, 0x12}; + +CPlayer::CPlayer(Copl *newopl) + : opl(newopl), db(CAdPlug::database) +{ +} + +CPlayer::~CPlayer() +{ +} + +unsigned long CPlayer::songlength(int subsong) +{ + CSilentopl tempopl; + Copl *saveopl = opl; + float slength = 0.0f; + + // save original OPL from being overwritten + opl = &tempopl; + + // get song length + rewind(subsong); + while(update() && slength < 600000) // song length limit: 10 minutes + slength += 1000.0f / getrefresh(); + rewind(subsong); + + // restore original OPL and return + opl = saveopl; + return (unsigned long)slength; +} + +void CPlayer::seek(unsigned long ms) +{ + float pos = 0.0f; + + rewind(); + while(pos < ms && update()) // seek to new position + pos += 1000/getrefresh(); +} |