102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
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/* REminiscence - Flashback interpreter
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* Copyright (C) 2005-2015 Gregory Montoir
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef SFX_PLAYER_H__
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#define SFX_PLAYER_H__
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#include "intern.h"
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struct Mixer;
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struct SfxPlayer {
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enum {
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NUM_SAMPLES = 5,
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NUM_CHANNELS = 3,
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FRAC_BITS = 12,
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PAULA_FREQ = 3546897
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};
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struct Module {
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const uint8_t *sampleData[NUM_SAMPLES];
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const uint8_t *moduleData;
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};
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struct SampleInfo {
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uint16_t len;
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uint16_t vol;
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uint16_t loopPos;
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uint16_t loopLen;
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int freq;
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int pos;
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const uint8_t *data;
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int8_t getPCM(int offset) const {
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if (offset < 0) {
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offset = 0;
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} else if (offset >= (int)len) {
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offset = len - 1;
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}
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return (int8_t)data[offset];
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}
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};
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static const uint8_t _musicData68[];
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static const uint8_t _musicData70[];
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static const uint8_t _musicData72[];
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static const uint8_t _musicData73[];
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static const uint8_t _musicData74[];
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static const uint8_t _musicData75[];
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static const uint8_t _musicDataSample1[];
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static const uint8_t _musicDataSample2[]; // tick
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static const uint8_t _musicDataSample3[]; // bell
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static const uint8_t _musicDataSample4[];
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static const uint8_t _musicDataSample5[];
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static const uint8_t _musicDataSample6[];
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static const uint8_t _musicDataSample7[];
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static const uint8_t _musicDataSample8[];
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static const Module _module68;
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static const Module _module70;
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static const Module _module72;
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static const Module _module73;
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static const Module _module74;
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static const Module _module75;
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static const uint16_t _periodTable[];
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const Module *_mod;
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bool _playing;
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int _samplesLeft;
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uint16_t _curOrder;
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uint16_t _numOrders;
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uint16_t _orderDelay;
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const uint8_t *_modData;
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SampleInfo _samples[NUM_CHANNELS];
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Mixer *_mix;
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SfxPlayer(Mixer *mixer);
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void play(uint8_t num);
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void stop();
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void playSample(int channel, const uint8_t *sampleData, uint16_t period);
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void handleTick();
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bool mix(int8_t *buf, int len);
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void mixSamples(int8_t *buf, int samplesLen);
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static bool mixCallback(void *param, int8_t *buf, int len);
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};
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#endif // SFX_PLAYER_H__
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