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102 lines
2.0 KiB
Plaintext
102 lines
2.0 KiB
Plaintext
*** soundbyte.c.orig Mon Apr 8 17:39:41 1996
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--- soundbyte.c Fri Oct 25 20:36:06 1996
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***************
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*** 96,101 ****
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--- 96,106 ----
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}
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#endif
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+ #ifndef sun
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+ #ifdef HALF_DUPLEX
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+ static int oldvol = -1;
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+ #endif
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+ #endif
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/* SOUNDINIT -- Open the sound peripheral and initialise for
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access. Return TRUE if successful, FALSE
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***************
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*** 145,150 ****
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--- 150,170 ----
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}
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ioctl(Audio_fd, AUDIO_SETINFO, &Audio_info);
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#endif
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+ #ifndef sun
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+ #ifdef HALF_DUPLEX
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+ if (iomode == O_RDONLY) {
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+ if (oldvol == -1)
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+ oldvol = soundgetvol();
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+ soundplayvol(0);
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+ } else if ( iomode == O_WRONLY
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+ && oldvol != -1
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+ ) {
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+ if (soundgetvol() == 0)
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+ soundplayvol(oldvol);
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+ oldvol = -1;
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+ }
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+ #endif
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+ #endif
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return TRUE;
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}
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if (errno != EINTR) {
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***************
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*** 160,165 ****
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--- 180,194 ----
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void soundterm()
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{
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if (audiof >= 0) {
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+ #ifndef sun
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+ #ifdef HALF_DUPLEX
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+ if (oldvol != -1) {
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+ if (soundgetvol() == 0)
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+ soundplayvol(oldvol);
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+ oldvol = -1;
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+ }
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+ #endif
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+ #endif
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if (close(audiof) < 0) {
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perror("closing audio device");
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}
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***************
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*** 210,219 ****
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arg = (value << 8) | value;
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! if (ioctl(Audio_fd, MIXER_WRITE(SOUND_MIXER_PCM), &arg) < 0)
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! perror("SOUND_MIXER_PCM");
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#endif
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}
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/* SOUNDRECGAIN -- Set recording gain from 0 (minimum) to 100 (maximum). */
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--- 239,268 ----
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arg = (value << 8) | value;
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! if (ioctl(Audio_fd, SOUND_MIXER_WRITE_PCM, &arg) < 0)
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! perror("SOUND_MIXER_WRITE_PCM");
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#endif
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}
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+
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+ #ifndef sun
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+ #ifdef HALF_DUPLEX
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+
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+ /* SOUNDGETVOL -- Get current playback volume. */
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+
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+ int soundgetvol()
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+ {
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+ int arg, v1, v2;
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+
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+ if (ioctl(Audio_fd, SOUND_MIXER_READ_PCM, &arg) < 0) {
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+ perror("SOUND_MIXER_READ_PCM");
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+ return -1;
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+ }
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+ v1 = arg & 0xFF;
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+ v2 = (arg >> 8) & 0xFF;
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+ return (v1 > v2) ? v1 : v2;
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+ }
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+ #endif
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+ #endif
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/* SOUNDRECGAIN -- Set recording gain from 0 (minimum) to 100 (maximum). */
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