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

1.1       root        1:  /* 
                      2:   * UAE - The Un*x Amiga Emulator
                      3:   * 
                      4:   * Support for the Silicon Graphics Audio Library (AL)
                      5:   * 
                      6:   * Copyright 1998 Ari Heikkinen
                      7:   */
                      8: 
                      9: #include <dmedia/audio.h>
                     10: 
                     11: extern uae_u16 sndbuffer[];
                     12: extern uae_u16 *sndbufpt;
                     13: extern int sndblocksize;
                     14: extern ALport al_port;
                     15: extern int to_frames_divisor;
                     16: 
                     17: static __inline__ void check_sound_buffers(void)
                     18: {
                     19:        int bytes = (char *)sndbufpt - (char *)sndbuffer;
                     20:        if (bytes >= sndblocksize) {
                     21:                alWriteFrames(al_port, sndbuffer, bytes / to_frames_divisor);
                     22:                sndbufpt = sndbuffer;
                     23:        }
                     24: }
                     25: 
                     26: #define PUT_SOUND_BYTE(b) ( *(uae_u8 *)sndbufpt++ = (b) )
                     27: #define PUT_SOUND_WORD(b) ( *(uae_u16 *)sndbufpt++ = (b) )
                     28: #define PUT_SOUND_BYTE_LEFT(b) PUT_SOUND_BYTE(b)
                     29: #define PUT_SOUND_WORD_LEFT(b) PUT_SOUND_WORD(b)
                     30: #define PUT_SOUND_BYTE_RIGHT(b) PUT_SOUND_BYTE(b)
                     31: #define PUT_SOUND_WORD_RIGHT(b) PUT_SOUND_WORD(b)
                     32: #define SOUND16_BASE_VAL 0
                     33: #define SOUND8_BASE_VAL 0
                     34: 
                     35: #define DEFAULT_SOUND_MINB 8192
                     36: #define DEFAULT_SOUND_MAXB 8192
                     37: #define DEFAULT_SOUND_BITS 16
                     38: #define DEFAULT_SOUND_FREQ 44100
                     39: #define HAVE_STEREO_SUPPORT

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