mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-21 09:21:08 +00:00
118 lines
2.7 KiB
C++
118 lines
2.7 KiB
C++
/* 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.
|
|
*
|
|
* $URL$
|
|
* $Id$
|
|
*
|
|
*/
|
|
|
|
#ifndef SCUMM_PLAYER_NES_H
|
|
#define SCUMM_PLAYER_NES_H
|
|
|
|
#include "common/scummsys.h"
|
|
#include "scumm/music.h"
|
|
#include "sound/audiostream.h"
|
|
#include "sound/mixer.h"
|
|
|
|
namespace Scumm {
|
|
|
|
class ScummEngine;
|
|
namespace APUe {
|
|
class APU;
|
|
}
|
|
|
|
static const int MAXVOLUME = 0x7F;
|
|
static const int NUMSLOTS = 3;
|
|
static const int NUMCHANS = 4;
|
|
|
|
/**
|
|
* Scumm NES sound/music driver.
|
|
*/
|
|
class Player_NES : public Audio::AudioStream, public MusicEngine {
|
|
public:
|
|
Player_NES(ScummEngine *scumm, Audio::Mixer *mixer);
|
|
virtual ~Player_NES();
|
|
|
|
virtual void setMusicVolume(int vol);
|
|
virtual void startSound(int sound);
|
|
virtual void stopSound(int sound);
|
|
virtual void stopAllSounds();
|
|
virtual int getSoundStatus(int sound) const;
|
|
|
|
// AudioStream API
|
|
int readBuffer(int16 *buffer, const int numSamples);
|
|
bool isStereo() const { return false; }
|
|
bool endOfData() const { return false; }
|
|
int getRate() const { return _sampleRate; }
|
|
|
|
private:
|
|
|
|
void sound_play();
|
|
void playSFX(int nr);
|
|
void playMusic();
|
|
byte fetchSoundByte(int nr);
|
|
void chainCommand(int chan);
|
|
void checkSilenceChannels(int chan);
|
|
|
|
void APU_writeChannel(int chan, int offset, byte value);
|
|
void APU_writeControl(byte value);
|
|
byte APU_readStatus();
|
|
|
|
ScummEngine *_vm;
|
|
Audio::Mixer *_mixer;
|
|
Audio::SoundHandle _soundHandle;
|
|
APUe::APU *_apu;
|
|
int _sampleRate;
|
|
int _samples_per_frame;
|
|
int _current_sample;
|
|
int _maxvol;
|
|
|
|
struct slot {
|
|
int framesleft;
|
|
int id;
|
|
int type;
|
|
byte *data;
|
|
int offset;
|
|
} _slot[NUMSLOTS];
|
|
|
|
struct mchan {
|
|
int command;
|
|
int framedelay;
|
|
int pitch;
|
|
int volume;
|
|
int voldelta;
|
|
int envflags;
|
|
int cmdlock;
|
|
} _mchan[NUMCHANS];
|
|
|
|
bool isSFXplaying, wasSFXplaying;
|
|
|
|
byte *dataStart;
|
|
int numNotes;
|
|
byte *auxData1;
|
|
byte *auxData2;
|
|
|
|
byte *soundptr;
|
|
};
|
|
|
|
} // End of namespace Scumm
|
|
|
|
#endif
|