50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/*
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* UAE - The Un*x Amiga Emulator
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*
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* Support for SDL sound
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*
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* Copyright 1997 Bernd Schmidt
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*/
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extern int sound_fd;
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extern uae_u16 sndbuffer[];
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extern uae_u16 *sndbufpt;
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extern int sndbufsize;
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extern void finish_sound_buffer (void);
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extern int init_sound (void);
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extern void close_sound (void);
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extern int setup_sound (void);
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extern void resume_sound (void);
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extern void pause_sound (void);
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extern void reset_sound (void);
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extern void driveclick_mix(uae_s16*, int); //Also defined in driveclick.h
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extern void driveclick_init(void); //Also defined in driveclick.h
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extern void driveclick_free(void); //Also defined in driveclick.h
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extern void clearbuffer (void);
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STATIC_INLINE void check_sound_buffers (void)
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{
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if ((char *)sndbufpt - (char *)sndbuffer >= sndbufsize) {
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#ifdef DRIVESOUND
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driveclick_mix ((uae_s16*)sndbuffer, sndbufsize >> 1);
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#endif
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finish_sound_buffer ();
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sndbufpt = sndbuffer;
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}
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}
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#define AUDIO_NAME "sdl"
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#define PUT_SOUND_BYTE(b) do { *(uae_u8 *)sndbufpt = b; sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 1); } while (0)
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#define PUT_SOUND_WORD(b) do { *(uae_u16 *)sndbufpt = b; sndbufpt = (uae_u16 *)(((uae_u8 *)sndbufpt) + 2); } while (0)
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#define PUT_SOUND_BYTE_LEFT(b) PUT_SOUND_BYTE(b)
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#define PUT_SOUND_WORD_LEFT(b) PUT_SOUND_WORD(b)
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#define PUT_SOUND_BYTE_RIGHT(b) PUT_SOUND_BYTE(b)
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#define PUT_SOUND_WORD_RIGHT(b) PUT_SOUND_WORD(b)
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#define PUT_SOUND_WORD_MONO(b) PUT_SOUND_WORD_LEFT(b)
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#define SOUND16_BASE_VAL 0
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#define DEFAULT_SOUND_FREQ 44100
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#define DEFAULT_SOUND_LATENCY 100
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#define HAVE_STEREO_SUPPORT
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