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103 lines
2 KiB
C++
103 lines
2 KiB
C++
#ifndef _DISPATCH_H
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#define _DISPATCH_H
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#include <stdint.h>
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#define ONE_SEMITONE 2200
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enum DivDispatchCmds {
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DIV_CMD_NOTE_ON=0,
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DIV_CMD_NOTE_OFF,
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DIV_CMD_INSTRUMENT,
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DIV_CMD_VOLUME,
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DIV_CMD_GET_VOLUME,
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DIV_CMD_GET_VOLMAX,
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DIV_CMD_NOTE_PORTA,
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DIV_CMD_PITCH,
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DIV_CMD_PANNING,
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DIV_CMD_LEGATO,
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DIV_CMD_PRE_PORTA,
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DIV_CMD_PRE_NOTE, // used in C64
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DIV_CMD_SAMPLE_MODE,
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DIV_CMD_FM_LFO,
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DIV_CMD_FM_TL,
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DIV_CMD_FM_AR,
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DIV_CMD_FM_FB,
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DIV_CMD_FM_MULT,
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DIV_CMD_FM_EXTCH,
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DIV_CMD_GENESIS_LFO,
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DIV_CMD_ARCADE_LFO,
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DIV_CMD_STD_NOISE_FREQ,
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DIV_CMD_STD_NOISE_MODE,
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DIV_CMD_WAVE,
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DIV_CMD_GB_SWEEP_TIME,
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DIV_CMD_GB_SWEEP_DIR,
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DIV_CMD_PCE_LFO_MODE,
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DIV_CMD_PCE_LFO_SPEED,
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DIV_ALWAYS_SET_VOLUME,
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DIV_CMD_MAX
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};
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struct DivCommand {
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DivDispatchCmds cmd;
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unsigned char chan;
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int value, value2;
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DivCommand(DivDispatchCmds c, unsigned char ch, int val, int val2):
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cmd(c),
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chan(ch),
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value(val),
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value2(val2) {}
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DivCommand(DivDispatchCmds c, unsigned char ch, int val):
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cmd(c),
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chan(ch),
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value(val),
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value2(0) {}
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DivCommand(DivDispatchCmds c, unsigned char ch):
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cmd(c),
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chan(ch),
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value(0),
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value2(0) {}
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};
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struct DivDelayedCommand {
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int ticks;
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DivCommand cmd;
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};
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class DivEngine;
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class DivDispatch {
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protected:
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DivEngine* parent;
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public:
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/**
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* the rate the samples are provided.
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* the engine shall resample to the output rate.
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*/
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int rate;
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virtual void acquire(short* bufL, short* bufR, size_t start, size_t len);
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virtual int dispatch(DivCommand c);
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virtual void tick();
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virtual bool isStereo();
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/**
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* initialize this DivDispatch.
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* @param parent the parent DivEngine.
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* @param channels the number of channels to acquire.
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* @param sugRate the suggested rate. this may change, so don't rely on it.
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* @return the number of channels allocated.
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*/
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virtual int init(DivEngine* parent, int channels, int sugRate);
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};
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#endif
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