Prepare for C140

src/engine/platform/c140.h

@@ -0,0 +1,102 @@
+/**
+ * Furnace Tracker - multi-system chiptune tracker
+ * Copyright (C) 2021-2023 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 _C140_H
+#define _C140_H
+
+#include "../dispatch.h"
+#include "sound/c140.h"
+#include "../fixedQueue.h"
+
+class DivPlatformC140: public DivDispatch {
+  struct Channel: public SharedChannel<int> {
+    unsigned int audPos;
+    int sample, wave;
+    int panning;
+    bool setPos, isNewYMZ;
+    int chPanL, chPanR;
+    int chVolL, chVolR;
+    int macroVolMul;
+    Channel():
+      SharedChannel<int>(255),
+      audPos(0),
+      sample(-1),
+      wave(-1),
+      panning(8),
+      setPos(false),
+      isNewYMZ(false),
+      chPanL(255),
+      chPanR(255),
+      chVolL(255),
+      chVolR(255),
+      macroVolMul(64) {}
+  };
+  Channel chan[24];
+  DivDispatchOscBuffer* oscBuf[24];
+  bool isMuted[24];
+  int chipType;
+  unsigned int sampleOff[256];
+  bool sampleLoaded[256];
+
+  unsigned char* sampleMem;
+  size_t sampleMemLen;
+  struct QueuedWrite {
+    unsigned short addr;
+    unsigned char val;
+    bool addrOrVal;
+    QueuedWrite(): addr(0), val(0), addrOrVal(false) {}
+    QueuedWrite(unsigned short a, unsigned char v): addr(a), val(v), addrOrVal(false) {}
+  };
+  FixedQueue<QueuedWrite,2048> writes;
+  struct c140_t c140;
+  unsigned char regPool[512];
+  friend void putDispatchChip(void*,int);
+  friend void putDispatchChan(void*,int,int);
+
+  public:
+    void acquire(short** buf, size_t len);
+    int dispatch(DivCommand c);
+    void* getChanState(int chan);
+    DivMacroInt* getChanMacroInt(int ch);
+    DivDispatchOscBuffer* getOscBuffer(int chan);
+    unsigned char* getRegisterPool();
+    int getRegisterPoolSize();
+    void reset();
+    void forceIns();
+    void tick(bool sysTick=true);
+    void muteChannel(int ch, bool mute);
+    int getOutputCount();
+    void setChipModel(int type);
+    void notifyInsChange(int ins);
+    void notifyWaveChange(int wave);
+    void notifyInsDeletion(void* ins);
+    void poke(unsigned int addr, unsigned short val);
+    void poke(std::vector<DivRegWrite>& wlist);
+    const char** getRegisterSheet();
+    const void* getSampleMem(int index = 0);
+    size_t getSampleMemCapacity(int index = 0);
+    size_t getSampleMemUsage(int index = 0);
+    bool isSampleLoaded(int index, int sample);
+    void renderSamples(int chipID);
+    void setFlags(const DivConfig& flags);
+    int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
+    void quit();
+};
+
+#endif