apps/plugins/rockboy/sound.h

   1 #ifndef __SOUND_H__
   2 #define __SOUND_H__
   3
   4 #include "defs.h"
   5
   6 struct sndchan
   7 {
   8     /* S1, S2, S3, S4 */
   9     int on, len, skip, cont;
  10     unsigned int pos;
  11
  12     /* S1, S2, S4 */
  13     int enlen, envol, endir, enlenreload;
  14
  15     /* S1, S2 */
  16     const byte *wave;
  17
  18     /* S1 only */
  19     int swlen, swlenreload, swsteps, swstep, swdir;
  20
  21     /* S3 only */
  22     int outputlevel;
  23
  24     /* S4 only */
  25     int shiftskip, shiftpos, shiftright, shiftleft;
  26     int nsteps, clock;
  27
  28 };
  29
  30 struct snd
  31 {
  32     int level1, level2, balance;
  33     bool gbDigitalSound;
  34     int rate;
  35     int quality;
  36     struct sndchan ch[4];
  37 };
  38
  39 extern struct snd snd;
  40
  41 #if defined(ICODE_ATTR) && defined(CPU_ARM)
  42 #undef ICODE_ATTR
  43 #define ICODE_ATTR
  44 #endif
  45
  46 byte sound_read(byte r) ICODE_ATTR;
  47 void sound_write(byte r, byte b) ICODE_ATTR;
  48 void sound_dirty(void);
  49 void sound_reset(void);
  50 void sound_mix(void) ICODE_ATTR;
  51
  52 #endif