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/* 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.
*
*/
#if !defined(SCUMM_IMUSE_DIGI_TRACK_H) && defined(ENABLE_SCUMM_7_8)
#define SCUMM_IMUSE_DIGI_TRACK_H
#include "common/scummsys.h"
namespace Scumm {
// These flag bits correspond exactly to the sound mixer flags of March 2007.
// We don't want to use the mixer flags directly, because then our saved games
// will break in interesting ways if the mixer flags are ever assigned new
// values. Now they should keep working, as long as these flags don't change.
enum {
kFlagUnsigned = 1 << 0,
kFlag16Bits = 1 << 1,
kFlagStereo = 1 << 3
};
struct Track {
int trackId; // used to identify track by value (0-15)
int8 pan; // panning value of sound
int32 vol; // volume level (values 0-127 * 1000)
int32 volFadeDest; // volume level which fading target (values 0-127 * 1000)
int32 volFadeStep; // delta of step while changing volume at each imuse callback
int32 volFadeDelay; // time in ms how long fading volume must be
bool volFadeUsed; // flag if fading is in progress
int32 soundId; // sound id used by scumm script
char soundName[15]; // sound name but also filename of sound in bundle data
bool used; // flag mean that track is used
bool toBeRemoved; // flag mean that track need to be free
bool souStreamUsed; // flag mean that track use stream from sou file
bool sndDataExtComp;// flag mean that sound data is compressed by scummvm tools
int32 soundPriority;// priority level of played sound (0-127)
int32 regionOffset; // offset to sound data relative to begining of current region
int32 dataOffset; // offset to sound data relative to begining of 'DATA' chunk
int32 curRegion; // id of current used region
int32 curHookId; // id of current used hook id
int32 volGroupId; // id of volume group (IMUSE_VOLGRP_VOICE, IMUSE_VOLGRP_SFX, IMUSE_VOLGRP_MUSIC)
int32 soundType; // type of sound data (kSpeechSoundType, kSFXSoundType, kMusicSoundType)
int32 feedSize; // size of sound data needed to be filled at each callback iteration
int32 dataMod12Bit; // value used between all callback to align 12 bit source of data
int32 mixerFlags; // flags for sound mixer's channel (kFlagStereo, kFlag16Bits, kFlagUnsigned)
ImuseDigiSndMgr::SoundDesc *soundDesc; // sound handle used by iMuse sound manager
Audio::SoundHandle mixChanHandle; // sound mixer's channel handle
Audio::QueuingAudioStream *stream; // sound mixer's audio stream handle for *.la1 and *.bun
Track() : soundId(-1), used(false), stream(NULL) {
}
int getPan() const { return (pan != 64) ? 2 * pan - 127 : 0; }
int getVol() const { return vol / 1000; }
Audio::Mixer::SoundType getType() const {
Audio::Mixer::SoundType type;
if (volGroupId == 1)
type = Audio::Mixer::kSpeechSoundType;
else if (volGroupId == 2)
type = Audio::Mixer::kSFXSoundType;
else if (volGroupId == 3)
type = Audio::Mixer::kMusicSoundType;
else
error("Track::getType(): invalid sound type");
return type;
}
};
} // End of namespace Scumm
#endif
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