apps/codecs/libgme/emuadpcm.h

   1 #ifndef __Y8950ADPCM_HH__
   2 #define __Y8950ADPCM_HH__
   3
   4 #include "blargg_common.h"
   5 #include "blargg_source.h"
   6 #include "msxtypes.h"
   7
   8 typedef unsigned short word;
   9 typedef unsigned __int64 uint64;
  10 struct Y8950;
  11
  12 struct Y8950Adpcm
  13 {
  14         struct Y8950* y8950;
  15
  16         int sampleRate;
  17         int clockRate;
  18
  19         int ramSize;
  20         int startAddr;
  21         int stopAddr;
  22         int playAddr;
  23         int addrMask;
  24         int memPntr;
  25         bool romBank;
  26         byte* ramBank;
  27
  28         bool playing;
  29         int volume;
  30         word delta;
  31         unsigned int nowStep, step;
  32         int out, output;
  33         int diff;
  34         int nextLeveling;
  35         int sampleStep;
  36         int volumeWStep;
  37
  38         byte reg7;
  39         byte reg15;
  40 };
  41
  42
  43 void ADPCM_init(struct Y8950Adpcm* this_, struct Y8950* y8950, byte* ramBank, int sampleRam);
  44 void ADPCM_reset(struct Y8950Adpcm* this_);
  45 void ADPCM_setSampleRate(struct Y8950Adpcm* this_, int sr, int clk);
  46 bool ADPCM_muted(struct Y8950Adpcm* this_);
  47 void ADPCM_writeReg(struct Y8950Adpcm* this_, byte rg, byte data);
  48 byte ADPCM_readReg(struct Y8950Adpcm* this_, byte rg);
  49 int ADPCM_calcSample(struct Y8950Adpcm* this_);
  50
  51
  52 #endif