prepare code and sketch emulator function prototypes

src/engine/platform/sid3.h

@@ -0,0 +1,110 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2024 tildearrow and contributors
+ *
+ * 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.
+ */
+
+#ifndef _SID3_H
+#define _SID3_H
+
+#include "../dispatch.h"
+#include "../../fixedQueue.h"
+#include "sound/sid3.h"
+
+class DivPlatformSID3: public DivDispatch {
+  struct Channel: public SharedChannel<signed short> {
+    int prevFreq;
+    unsigned char wave, attack, decay, sustain, release;
+    short duty;
+    bool filter;
+    bool resetMask, resetFilter, resetDuty, gate, ring, sync, test;
+    unsigned char vol;
+    unsigned char filtControl, filtRes;
+    unsigned char noise_mode;
+    unsigned char mix_mode;
+    int filtCut;
+    Channel():
+      SharedChannel<signed short>(SID3_MAX_VOL),
+      prevFreq(0x1ffff),
+      wave(0),
+      attack(0),
+      decay(0),
+      sustain(0),
+      release(0),
+      duty(0),
+      filter(false),
+      resetMask(false),
+      resetFilter(false),
+      resetDuty(false),
+      gate(true),
+      ring(false),
+      sync(false),
+      test(false),
+      vol(SID3_MAX_VOL),
+      filtControl(0),
+      filtRes(0),
+      noise_mode(0),
+      mix_mode(0),
+      filtCut(0) {}
+  };
+  Channel chan[SID3_NUM_CHANNELS];
+  DivDispatchOscBuffer* oscBuf[SID3_NUM_CHANNELS];
+  struct QueuedWrite {
+      unsigned char addr;
+      unsigned char val;
+      QueuedWrite(): addr(0), val(0) {}
+      QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
+  };
+  FixedQueue<QueuedWrite,SID3_NUM_REGISTERS * 4> writes;
+
+  unsigned char writeOscBuf;
+
+  SID3* sid3;
+  unsigned char regPool[SID3_NUM_REGISTERS];
+
+  bool isMuted[SID3_NUM_CHANNELS];
+  
+  friend void putDispatchChip(void*,int);
+  friend void putDispatchChan(void*,int,int);
+
+  void updateFilter(int channel);
+  public:
+    void acquire(short** buf, size_t len);
+    int dispatch(DivCommand c);
+    void* getChanState(int chan);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
+    void reset();
+    void forceIns();
+    void tick(bool sysTick=true);
+    void muteChannel(int ch, bool mute);
+    void setFlags(const DivConfig& flags);
+    void notifyInsChange(int ins);
+    float getPostAmp();
+    DivMacroInt* getChanMacroInt(int ch);
+    DivChannelModeHints getModeHints(int chan);
+    void notifyInsDeletion(void* ins);
+    void poke(unsigned int addr, unsigned short val);
+    void poke(std::vector<DivRegWrite>& wlist);
+    const char** getRegisterSheet();
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
+    int getOutputCount();
+    void quit();
+    ~DivPlatformSID3();
+};
+
+#endif