--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/playercode/unix_drv/drv_AF.c	Fri Jan 23 16:05:10 1998 +0000
@@ -0,0 +1,201 @@
+/*
+
+  Name:
+  DRV_AF.C
+
+  Description:
+  Mikmod driver for output on AF audio server.
+  
+  Written by Roine Gustafsson <e93_rog@e.kth.se> Oct 25, 1995
+  
+  Portability:
+  Unixes running Digital AudioFile library, available from
+  ftp://crl.dec.com/pub/DEC/AF
+
+  Usage:
+  Run the audio server (Aaxp&, Amsb&, whatever)
+  Set environment variable AUDIOFILE to something like 'mymachine:0'.
+  Remember, stereo is default! See commandline switches.
+
+  I have a version which uses 2 computers for stereo.
+  Contact me if you want it.
+  
+  THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS,
+  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+  LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+  NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+  CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+  History:
+    ver 1.21 Bugfix: AFFragmentSize could end up uneven.
+		Thanks to Marcus Sundberg <e94_msu@e.kth.se>
+    ver 1.22 Compatibility: change "AFBuffer" to "audiobuffer"
+		Steve McIntyre <stevem@chiark.greenend.org.uk>
+    ver 1.30 Compatibility: Use new driver API
+		Steve McIntyre <stevem@chiark.greenend.org.uk>
+*/
+
+#include <malloc.h>
+#include <stdlib.h>
+#include <AF/AFlib.h>
+
+#include "mikmod.h"
+
+/* Global variables */
+
+SBYTE *audiobuffer;
+static int AFFragmentSize;
+AFAudioConn *AFaud;
+ATime AFtime;
+AC AFac;
+AFDeviceDescriptor *AFdesc;
+
+BOOL AF_IsThere(void)
+{
+
+  /* I'll think of a detection routine ... somtime */
+  
+  return 1;
+
+}
+
+BOOL AF_Init(void)
+{
+  unsigned long mask;
+  AFSetACAttributes attributes;
+  int srate;
+  ADevice device;
+  unsigned int channels;
+  AEncodeType type;
+  char *server;
+  int n;
+  
+  AFaud = AFOpenAudioConn( "" );
+  if ( AFaud == NULL ) {
+    myerr="Cannot open sounddevice.";
+    return 0;
+  }
+
+  /* Search for a suitable device */
+  device = -1;
+  for ( n = 0; n < AFaud->ndevices; n++ ) {
+    AFdesc = AAudioDeviceDescriptor( AFaud, n );
+    if ( AFdesc->playNchannels == 2 && md_mode&DMODE_STEREO ) {
+      device = n;
+      break;
+    }
+    if ( AFdesc->playNchannels == 1 && !(md_mode&DMODE_STEREO) ) {
+      device = n;
+      break;
+    }
+  }
+  if ( device == -1 ) {
+    myerr="Cannot find suitable audio port!";
+    AFCloseAudioConn( AFaud );      
+    return 0;
+  }
+
+  attributes.preempt = Mix;
+  attributes.start_timeout = 0;
+  attributes.end_silence = 0;
+  attributes.type = LIN16;  /* In case of an 8bit device, the AF converts the 16 bit data to 8 bit */
+  attributes.channels = (md_mode&DMODE_STEREO)? Stereo: Mono;
+
+  mask = ACPreemption | ACEncodingType | ACStartTimeout | ACEndSilence | ACChannels;
+  AFac = AFCreateAC( AFaud, device, mask, &attributes );
+  srate=AFac->device->playSampleFreq;
+
+  md_mode|=DMODE_16BITS;   /* This driver only handles 16bits */
+  AFFragmentSize = (srate/40)*8;    /* Update 5 times/sec */
+  md_mixfreq=srate;        /* set mixing freq */
+
+  if ( md_mode & DMODE_STEREO ) {
+    if ( ( audiobuffer = (SBYTE *)malloc( 2*2*AFFragmentSize ) ) == NULL ) {
+      myerr="Out of memory!";
+      AFCloseAudioConn( AFaud );      
+      return 0;
+    }
+    
+  } else {
+    if ( ( audiobuffer = (SBYTE *)malloc( 2*AFFragmentSize ) ) == NULL ) {
+      myerr="Out of memory!";
+      AFCloseAudioConn( AFaud );      
+      return 0;
+    }
+  }
+  
+  if ( !VC_Init() ) {
+    AFCloseAudioConn( AFaud );
+    free( audiobuffer );
+    return 0;
+  }
+
+  return 1;
+}
+
+void AF_PlayStart( void )
+{
+
+  AFtime = AFGetTime( AFac );
+  VC_PlayStart();
+
+}
+
+
+void AF_Exit(void)
+{
+
+  VC_Exit();
+  AFCloseAudioConn(AFaud);
+  free( AFBuffer );
+  
+}
+
+void AF_Update(void)
+{
+
+  UWORD *p,*l,*r;
+  int i;
+  
+  
+  VC_WriteBytes( AFBuffer, AFFragmentSize );
+  if ( md_mode & DMODE_STEREO ) {
+    AFPlaySamples( AFac, AFtime, AFFragmentSize, (unsigned char *)AFBuffer );
+    AFtime+=AFFragmentSize/4;
+//    while ( AFGetTime( AFac ) < AFtime-1000 );
+  } else {
+    AFPlaySamples( AFac, AFtime, AFFragmentSize, (unsigned char *)AFBuffer );
+    AFtime+=AFFragmentSize/2;
+//    while ( AFGetTime( AFac ) < AFtime-1000 );
+  }
+  
+}
+
+
+DRIVER drv_AF={
+  NULL,
+  "AF driver",
+  "MikMod AudioFile Driver v1.22",
+  AF_IsThere,
+  VC_SampleLoad,
+  VC_SampleUnload,
+  VC_SampleSpace,
+  VC_SampleLength,
+  AF_Init,
+  AF_Exit,
+  VC_SetNumChannels,
+  AF_PlayStart,
+  VC_PlayStop,
+  AF_Update,
+  VC_VoiceSetVolume,
+  VC_VoiceSetFrequency,
+  VC_VoiceSetPanning,
+  VC_VoicePlay,
+	VC_VoiceStop,
+	VC_VoiceStopped,
+	VC_VoiceReleaseSustain,
+	VC_VoiceGetPosition,
+	VC_RealVolume
+};