$OpenBSD: patch-src_audio_cc,v 1.2 2009/12/20 00:35:23 jakemsr Exp $
--- src/audio.cc.orig	Wed May 31 00:17:59 2000
+++ src/audio.cc	Thu Dec 17 01:55:40 2009
@@ -32,6 +32,8 @@
 // sound playback type definition
 #if defined(USE_ESD)
 #define ESD
+#elif defined(USE_SNDIO)
+#define SNDIO
 #else
 
 #if defined(__linux__) && defined(USE_ALSA)
@@ -51,6 +53,8 @@
 // include header file
 #ifdef ESD
 #include <esd.h>
+#elif defined(SNDIO)
+#include <sndio.h>
 #else
 
 #ifdef __linux__
@@ -165,6 +169,11 @@ int Audio::openDevice()
   return 1;
 #elif defined(ESD)
   return 1;
+#elif defined(SNDIO)
+  if ((hdl = sio_open(NULL, SIO_PLAY, 0)) == NULL)
+    return -1;
+  started = 0;
+  return 1;
 #else
   m_audiofd = open(m_audiodev, O_WRONLY);
   if (m_audiofd < 0)
@@ -184,6 +193,8 @@ int Audio::closeDevice()
   if (!(m_audiofd < 0))
     if (esd_close(m_audiofd) < 0)
       return -1;
+#elif defined(SNDIO)
+  sio_close(hdl);
 #else
   if (close(m_audiofd) < 0)
     return -1;
@@ -222,6 +233,15 @@ int Audio::setFormat(int bits, int encoding)
     return -1;
 #endif
 
+#ifdef SNDIO
+  if (encoding != EN_LINEAR && encoding != EN_NONE)
+    return -1;
+  sio_initpar(&par);
+  par.bits = bits;
+  par.sig = bits == 8 ? 0 : 1;
+  par.le = SIO_LE_NATIVE;
+#endif
+
 #ifdef OSS
   if (encoding != EN_LINEAR && encoding != EN_NONE)
     return -1;
@@ -232,7 +252,7 @@ int Audio::setFormat(int bits, int encoding)
 #endif
 
 #ifdef SUN
-  struct audio_info_t ainfo;
+  audio_info_t ainfo;
 
   AUDIO_INITINFO(&ainfo);
 
@@ -270,8 +290,12 @@ int Audio::setChannels(int channels)
     return -1;
 #endif
 
+#ifdef SNDIO
+  par.pchan = channels;
+#endif
+
 #ifdef SUN
-  struct audio_info_t ainfo;
+  audio_info_t ainfo;
 
   AUDIO_INITINFO(&ainfo);
   ainfo.play.channels = channels;
@@ -299,8 +323,12 @@ int Audio::setSamplingRate(int rate)
     return -1;
 #endif
 
+#ifdef SNDIO
+  par.rate = rate;
+#endif
+
 #ifdef SUN
-  struct audio_info_t ainfo;
+  audio_info_t ainfo;
 
   AUDIO_INITINFO(&ainfo);
   ainfo.play.sample_rate = rate;
@@ -336,9 +364,21 @@ int Audio::output(char* buf, int size)
   }
 #endif
 
+#ifdef SNDIO
+  if (!started) {
+    if (!sio_setpar(hdl, &par) || !sio_start(hdl)) {
+      printf("could not start sndio\n");
+      return -1;
+    }
+    started = 1;
+  }
+#endif
+
   while (size > 0) {
 #ifdef ALSA
 	ret = snd_pcm_write(m_audiopcm, buf, size);
+#elif defined(SNDIO)
+    ret = sio_write(hdl, buf, size);
 #else
     ret = write(m_audiofd, buf, size);
 #endif