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Annotation of uae/src/sd-solaris/sound.c, revision 1.1

1.1     ! root        1:  /* 
        !             2:   * UAE - The Un*x Amiga Emulator
        !             3:   * 
        !             4:   * Support for Solaris sound
        !             5:   * 
        !             6:   * Copyright 1996, 1997 Manfred Thole
        !             7:   */
        !             8: 
        !             9: #include "sysconfig.h"
        !            10: #include "sysdeps.h"
        !            11: 
        !            12: #include "config.h"
        !            13: #include "options.h"
        !            14: #include "memory.h"
        !            15: #include "custom.h"
        !            16: #include "audio.h"
        !            17: #include "gensound.h"
        !            18: #include "sounddep/sound.h"
        !            19: #include "events.h"
        !            20: 
        !            21: #if !defined HAVE_SYS_AUDIOIO_H
        !            22: 
        !            23: /* SunOS 4.1.x */
        !            24: #include <sys/ioctl.h>
        !            25: #include <sun/audioio.h>
        !            26: #ifndef AUDIO_ENCODING_LINEAR
        !            27: #define AUDIO_ENCODING_LINEAR (3)
        !            28: #endif
        !            29: 
        !            30: #else
        !            31: 
        !            32: /* SunOS 5.x/NetBSD */
        !            33: #include <sys/audioio.h>
        !            34: #ifdef HAVE_SYS_IOCTL_H
        !            35: #include <sys/ioctl.h>
        !            36: #endif
        !            37: #endif
        !            38: 
        !            39: int sndbufsize;
        !            40: int sound_fd;
        !            41: static int have_sound;
        !            42: uae_u16 sndbuffer[44100];
        !            43: uae_u16 *sndbufpt;
        !            44: 
        !            45: void close_sound(void)
        !            46: {
        !            47:     if (have_sound)
        !            48:        close(sound_fd);
        !            49: }
        !            50: 
        !            51: int setup_sound(void)
        !            52: {
        !            53:     sound_fd = open ("/dev/audio", O_WRONLY);
        !            54:     have_sound = !(sound_fd < 0);
        !            55:     if (!have_sound)
        !            56:       return 0;
        !            57: 
        !            58:     sound_available = 1;
        !            59:     return 1;
        !            60: }
        !            61: 
        !            62: int init_sound (void)
        !            63: {
        !            64:     int rate, dspbits;
        !            65: 
        !            66:     struct audio_info sfd_info;
        !            67: 
        !            68:     if (currprefs.sound_maxbsiz < 128 || currprefs.sound_maxbsiz > 44100) {
        !            69:        fprintf(stderr, "Sound buffer size %d out of range.\n", currprefs.sound_maxbsiz);
        !            70:        currprefs.sound_maxbsiz = 8192;
        !            71:     }
        !            72: 
        !            73:     rate = currprefs.sound_freq;
        !            74:     dspbits = currprefs.sound_bits;
        !            75:     AUDIO_INITINFO(&sfd_info);
        !            76:     sfd_info.play.sample_rate = rate;
        !            77:     sfd_info.play.channels = 1;
        !            78:     sfd_info.play.precision = dspbits;
        !            79:     sfd_info.play.encoding = (dspbits == 8 ) ? AUDIO_ENCODING_ULAW : AUDIO_ENCODING_LINEAR;
        !            80:     if (ioctl(sound_fd, AUDIO_SETINFO, &sfd_info)) {
        !            81:        fprintf(stderr, "Can't use sample rate %d with %d bits, %s!\n", rate, dspbits, (dspbits ==8) ? "ulaw" : "linear");
        !            82:        return 0;
        !            83:     }
        !            84:     sample_evtime = (long)maxhpos * maxvpos * 50 / rate;
        !            85: 
        !            86:     init_sound_table16 ();
        !            87: 
        !            88:     if (dspbits == 8) {
        !            89:        eventtab[ev_sample].handler = sample_ulaw_handler;
        !            90:     } else {
        !            91:        eventtab[ev_sample].handler = sample16_handler;
        !            92:     }
        !            93: 
        !            94:     sndbufpt = sndbuffer;
        !            95:     sound_available = 1;
        !            96:     sndbufsize = currprefs.sound_maxbsiz;
        !            97:     printf ("Sound driver found and configured for %d bits, %s at %d Hz, buffer is %d bytes\n", dspbits, (dspbits ==8) ? "ulaw" : "linear", rate, sndbufsize);
        !            98:     return 1;
        !            99: }
        !           100: 

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