REminiscence/sfx_player.h

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/*
* REminiscence - Flashback interpreter
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* Copyright (C) 2005-2018 Gregory Montoir (cyx@users.sourceforge.net)
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*/
#ifndef SFX_PLAYER_H__
#define SFX_PLAYER_H__
#include "intern.h"
struct Mixer;
struct SfxPlayer {
enum {
NUM_SAMPLES = 5,
NUM_CHANNELS = 3,
FRAC_BITS = 12,
PAULA_FREQ = 3546897
};
struct Module {
const uint8_t *sampleData[NUM_SAMPLES];
const uint8_t *moduleData;
};
struct SampleInfo {
uint16_t len;
uint16_t vol;
uint16_t loopPos;
uint16_t loopLen;
int freq;
int pos;
const uint8_t *data;
int8_t getPCM(int offset) const {
if (offset < 0) {
offset = 0;
} else if (offset >= (int)len) {
offset = len - 1;
}
return (int8_t)data[offset];
}
};
static const uint8_t _musicData68[];
static const uint8_t _musicData70[];
static const uint8_t _musicData72[];
static const uint8_t _musicData73[];
static const uint8_t _musicData74[];
static const uint8_t _musicData75[];
static const uint8_t _musicDataSample1[];
static const uint8_t _musicDataSample2[]; // tick
static const uint8_t _musicDataSample3[]; // bell
static const uint8_t _musicDataSample4[];
static const uint8_t _musicDataSample5[];
static const uint8_t _musicDataSample6[];
static const uint8_t _musicDataSample7[];
static const uint8_t _musicDataSample8[];
static const Module _module68;
static const Module _module70;
static const Module _module72;
static const Module _module73;
static const Module _module74;
static const Module _module75;
static const uint16_t _periodTable[];
const Module *_mod;
bool _playing;
int _samplesLeft;
uint16_t _curOrder;
uint16_t _numOrders;
uint16_t _orderDelay;
const uint8_t *_modData;
SampleInfo _samples[NUM_CHANNELS];
Mixer *_mix;
SfxPlayer(Mixer *mixer);
void play(uint8_t num);
void stop();
void playSample(int channel, const uint8_t *sampleData, uint16_t period);
void handleTick();
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void mixSamples(int8_t *samples, int samplesLen);
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bool mix(int8_t *buf, int len);
static bool mixCallback(void *param, int16_t *buf, int len);
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};
#endif // SFX_PLAYER_H__