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Annotation of uae/src/sd-af/sound.h, revision 1.1.1.1

1.1       root        1:  /* 
                      2:   * UAE - The Un*x Amiga Emulator
                      3:   * 
                      4:   * Support for the AF sound system
                      5:   * 
                      6:   * Copyright 1996 Marcus Sundberg
                      7:   */
                      8: 
                      9: #include <AF/AFlib.h>
                     10: 
                     11: extern AFAudioConn  *aud;
                     12: extern AC            ac;
                     13: extern long          aftime;
                     14: extern int           rate;
                     15: extern int sndbufsize;
                     16: extern uae_u16 sndbuffer[];
                     17: extern uae_u16 *sndbufpt;
                     18: 
                     19: static __inline__ void flush_sound_buffer(void)
                     20: {
                     21:     long size = (char *)sndbufpt - (char *)sndbuffer;
                     22:     if (AFGetTime(ac) > aftime)
                     23:        aftime = AFGetTime(ac);
                     24:     AFPlaySamples(ac, aftime, size, (unsigned char*) sndbuffer);
                     25:     aftime += size / 2;
                     26:     sndbufpt = sndbuffer;
                     27: }
                     28: 
                     29: static __inline__ void check_sound_buffers (void)
                     30: {
                     31:     if ((char *)sndbufpt - (char *)sndbuffer >= sndbufsize) {
                     32:        flush_sound_buffer();
                     33:     }
                     34: }
                     35: 
                     36: #define PUT_SOUND_BYTE(b) do { *(uae_u8 *)sndbufpt = b; sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 1); } while (0)
                     37: #define PUT_SOUND_WORD(b) do { *(uae_u16 *)sndbufpt = b; sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 2); } while (0)
                     38: #define SOUND16_BASE_VAL 0
                     39: #define SOUND8_BASE_VAL 128
                     40: 
                     41: #define DEFAULT_SOUND_BSIZ 8192
                     42: #define DEFAULT_SOUND_BITS 16
                     43: #define DEFAULT_SOUND_FREQ 44100
                     44: 

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