Cut the files in half and it might work better (note to self: check your tree is really clean before patching)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21070 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 0 insertions, 944 deletions

diff --git a/apps/plugins/pdbox/PDa/src/s_audio_alsa.c b/apps/plugins/pdbox/PDa/src/s_audio_alsa.c
index 87d7cb929b..b8e8535dc9 100644
--- a/apps/plugins/pdbox/PDa/src/s_audio_alsa.c
+++ b/apps/plugins/pdbox/PDa/src/s_audio_alsa.c
@@ -943,948 +943,4 @@ void alsa_getdevs(char *indevlist, int *nindevs,
     }
     *nindevs = *noutdevs = j;
 }
-/* Copyright (c) 1997-2003 Guenter Geiger, Miller Puckette, Larry Troxler,
-* Winfried Ritsch, Karl MacMillan, and others.
-* For information on usage and redistribution, and for a DISCLAIMER OF ALL
-* WARRANTIES, see the file, "LICENSE.txt," in this distribution.  */
-
-/* this file inputs and outputs audio using the ALSA API available on linux. */
-
-#include <alsa/asoundlib.h>
-
-#include "m_pd.h"
-#include "s_stuff.h"
-#include <errno.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <fcntl.h>
-#include <sched.h>
-#include <sys/mman.h>
-
-typedef int16_t t_alsa_sample16;
-typedef int32_t t_alsa_sample32;
-#define ALSA_SAMPLEWIDTH_16 sizeof(t_alsa_sample16)
-#define ALSA_SAMPLEWIDTH_32 sizeof(t_alsa_sample32)
-#define ALSA_XFERSIZE16  (signed int)(sizeof(t_alsa_sample16) * DEFDACBLKSIZE)
-#define ALSA_XFERSIZE32  (signed int)(sizeof(t_alsa_sample32) * DEFDACBLKSIZE)
-#define ALSA_MAXDEV 1
-#define ALSA_JITTER 1024
-#define ALSA_EXTRABUFFER 2048
-#define ALSA_DEFFRAGSIZE 64
-#define ALSA_DEFNFRAG 12
-
-#ifndef INT32_MAX
-#define INT32_MAX 0x7fffffff
-#endif
-
-#if (SND_LIB_MAJOR < 1)
-#define ALSAAPI9
-#endif
-
-typedef struct _alsa_dev
-{
-    snd_pcm_t *inhandle;
-    snd_pcm_t *outhandle;
-    int innoninterleave;    /* true if we're set for noninterleaved read */
-    int outnoninterleave;   /* same for write */
-} t_alsa_dev;
-
-t_alsa_dev alsa_device;
-static void *alsa_snd_buf = 0;
-static void **alsa_buf_ptrs;
-static int alsa_samplewidth;
-static snd_pcm_status_t* in_status;
-static snd_pcm_status_t* out_status;
-
-static int alsa_mode;
-static int alsa_buf_samps;  /* believed actual ALSA bufsize in sample frames */
-static int alsa_inchannels;
-static int alsa_outchannels;
-
-/* Defines */
-#define DEBUG(x) x
-#define DEBUG2(x) {x;}
-
-static void alsa_checkiosync( void);
-static void alsa_numbertoname(int devno, char *devname, int nchar);
-
-    /* don't assume we can turn all 31 bits when doing float-to-fix; 
-    otherwise some audio drivers (e.g. Midiman/ALSA) wrap around. */
-#define FMAX 0x7ffff000
-#define CLIP32(x) (((x)>FMAX)?FMAX:((x) < -FMAX)?-FMAX:(x))
-
-/* support for ALSA pcmv2 api by Karl MacMillan<karlmac@peabody.jhu.edu> */ 
-
-static void check_error(int err, const char *why)
-{
-    if (err < 0)
-        fprintf(stderr, "%s: %s\n", why, snd_strerror(err));
-}
-
-/* was: alsa_open_audio(int wantinchans, int wantoutchans, int srate) */
-
-int alsa_open_audio(int naudioindev, int *audioindev, int nchindev,
-    int *chindev, int naudiooutdev, int *audiooutdev, int nchoutdev,
-    int *choutdev, int rate)
-{
-    int err, inchans = 0, outchans = 0, subunitdir;
-    char devname[512];
-    snd_pcm_hw_params_t* hw_params;
-    snd_pcm_sw_params_t* sw_params;
-    snd_output_t* out;
-    int frag_size = (sys_blocksize ? sys_blocksize : ALSA_DEFFRAGSIZE);
-    int nfrags, i;
-    short* tmp_buf;
-    unsigned int tmp_uint;
-    snd_pcm_uframes_t tmp_snd_pcm_uframes;
-    int wantinchans, wantoutchans, devno;
-
-    if (naudioindev >= 2 || naudiooutdev >= 2)
-        post("alsa: only one input and output device allowed (extras ignored");
-    if (naudioindev >= 1 && naudiooutdev >= 1 &&
-        audioindev[0] != audiooutdev[0])
-            post("alsa: changing output device to agree with input device");
-    if (nchindev)
-        wantinchans = chindev[0];
-    else wantinchans = (naudioindev ? 2 : 0);
-    if (nchoutdev)
-        wantoutchans = choutdev[0];
-    else wantoutchans = (naudiooutdev ? 2 : 0);
-    devno = (naudioindev > 0 ? audioindev[0] :
-        (naudiooutdev > 0 ? audiooutdev[0] : 0));
-
-    alsa_numbertoname(devno, devname, 512);
-
-    if (sys_verbose)
-        post("device name %s; channels in %d, out %d", devname, wantinchans,
-            wantoutchans);
-    
-    nfrags = sys_schedadvance * (float)rate / (1e6 * frag_size);
-        /* save our belief as to ALSA's buffer size for later */
-    alsa_buf_samps = nfrags * frag_size;
-
-    if (sys_verbose)
-        post("audio buffer set to %d", (int)(0.001 * sys_schedadvance));
-    
-    alsa_device.innoninterleave = alsa_device.outnoninterleave = 0;
-    if (wantinchans)
-    {
-        err = snd_pcm_open(&alsa_device.inhandle, devname,
-                           SND_PCM_STREAM_CAPTURE, SND_PCM_NONBLOCK);
-
-        check_error(err, "snd_pcm_open (input)");
-        if (err < 0)
-            inchans = 0;
-        else
-        {
-            inchans = wantinchans;
-            snd_pcm_nonblock(alsa_device.inhandle, 1);
-        }
-    }
-    if (wantoutchans)
-    {
-        err = snd_pcm_open(&alsa_device.outhandle, devname,
-                           SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
-
-        check_error(err, "snd_pcm_open (output)");
-        if (err < 0)
-            outchans = 0;
-        else
-        {
-            outchans = wantoutchans;
-            snd_pcm_nonblock(alsa_device.outhandle, 1);
-        }
-    }
-    if (inchans)
-    {
-        if (sys_verbose)
-            post("opening sound input...");
-        err = snd_pcm_hw_params_malloc(&hw_params);
-        check_error(err, "snd_pcm_hw_params_malloc (input)");
-    
-        // get the default params
-        err = snd_pcm_hw_params_any(alsa_device.inhandle, hw_params);
-        check_error(err, "snd_pcm_hw_params_any (input)");
-
-        /* try to set interleaved access */
-        err = snd_pcm_hw_params_set_access(alsa_device.inhandle,
-            hw_params, SND_PCM_ACCESS_RW_INTERLEAVED);
-        if (err < 0)
-        {
-                /* OK, so try non-interleaved */
-            err = snd_pcm_hw_params_set_access(alsa_device.inhandle,
-                hw_params, SND_PCM_ACCESS_RW_NONINTERLEAVED);
-            if (err >= 0)
-            {
-                post("using non-interleaved audio input");
-                alsa_device.innoninterleave = 1;
-            }
-        }
-        check_error(err, "snd_pcm_hw_params_set_access (input)");
-        // Try to set 32 bit format first
-        err = snd_pcm_hw_params_set_format(alsa_device.inhandle, hw_params,
-                                           SND_PCM_FORMAT_S32);
-        if (err < 0)
-        {
-            /* fprintf(stderr,
-                "PD-ALSA: 32 bit format not available - using 16\n"); */
-            err = snd_pcm_hw_params_set_format(alsa_device.inhandle, hw_params,
-                                               SND_PCM_FORMAT_S16);
-            check_error(err, "snd_pcm_hw_params_set_format (input)");
-            alsa_samplewidth = 2;
-        }
-        else
-        {
-            alsa_samplewidth = 4;
-        }
-        post("Sample width set to %d bytes", alsa_samplewidth);
-        // set the subformat
-        err = snd_pcm_hw_params_set_subformat(alsa_device.inhandle, hw_params,
-                                              SND_PCM_SUBFORMAT_STD);
-        check_error(err, "snd_pcm_hw_params_set_subformat (input)");
-        // set the number of channels
-        tmp_uint = inchans;
-        err = snd_pcm_hw_params_set_channels_min(alsa_device.inhandle,
-                                                 hw_params, &tmp_uint);
-        check_error(err, "snd_pcm_hw_params_set_channels (input)");
-        if (tmp_uint != (unsigned)inchans)
-            post("ALSA: set input channels to %d", tmp_uint);
-        inchans = tmp_uint;
-        // set the sampling rate
-        err = snd_pcm_hw_params_set_rate_min(alsa_device.inhandle, hw_params,
-                                             &rate, 0);
-        check_error(err, "snd_pcm_hw_params_set_rate_min (input)");
-#if 0
-        err = snd_pcm_hw_params_get_rate(hw_params, &subunitdir);
-        post("input sample rate %d", err);
-#endif
-        // set the period - ie frag size
-        // post("fragsize a %d", frag_size);
-
-            /* LATER try this to get a recommended period size...
-             right now, it trips an assertion failure in ALSA lib */
-#if 0
-        post("input period was %d, min %d, max %d\n",
-            snd_pcm_hw_params_get_period_size(hw_params, 0),
-            snd_pcm_hw_params_get_period_size_min(hw_params, 0),
-            snd_pcm_hw_params_get_period_size_max(hw_params, 0));
-#endif
-#ifdef ALSAAPI9
-        err = snd_pcm_hw_params_set_period_size_near(alsa_device.inhandle,
-                                                    hw_params, 
-                                                    (snd_pcm_uframes_t)
-                                                    frag_size, 0);
-#else
-        tmp_snd_pcm_uframes = frag_size;
-        err = snd_pcm_hw_params_set_period_size_near(alsa_device.inhandle,
-            hw_params, &tmp_snd_pcm_uframes, 0);
-#endif
-        check_error(err, "snd_pcm_hw_params_set_period_size_near (input)");
-        // post("fragsize b %d", frag_size);
-        // set the number of periods - ie numfrags
-        // post("nfrags a %d", nfrags);
-#ifdef ALSAAPI9
-        err = snd_pcm_hw_params_set_periods_near(alsa_device.inhandle,
-                                                hw_params, nfrags, 0);
-#else
-        tmp_uint = nfrags;
-        err = snd_pcm_hw_params_set_periods_near(alsa_device.inhandle,
-            hw_params, &tmp_uint, 0);
-#endif
-        check_error(err, "snd_pcm_hw_params_set_periods_near (input)");
-        // set the buffer size
-#ifdef ALSAAPI9
-        err = snd_pcm_hw_params_set_buffer_size_near(alsa_device.inhandle,
-                                                hw_params, nfrags * frag_size);
-#else
-        tmp_snd_pcm_uframes = nfrags * frag_size;
-        err = snd_pcm_hw_params_set_buffer_size_near(alsa_device.inhandle,
-            hw_params, &tmp_snd_pcm_uframes);
-#endif
-        check_error(err, "snd_pcm_hw_params_set_buffer_size_near (input)");
-
-        err = snd_pcm_hw_params(alsa_device.inhandle, hw_params);
-        check_error(err, "snd_pcm_hw_params (input)");
-        
-        snd_pcm_hw_params_free(hw_params);
-        
-        err = snd_pcm_sw_params_malloc(&sw_params);
-        check_error(err, "snd_pcm_sw_params_malloc (input)");
-        err = snd_pcm_sw_params_current(alsa_device.inhandle, sw_params);
-        check_error(err, "snd_pcm_sw_params_current (input)");
-        err = snd_pcm_sw_params_set_start_threshold(alsa_device.inhandle,
-            sw_params, nfrags * frag_size);
-        check_error(err, "snd_pcm_sw_params_set_start_threshold (input)");
-        err = snd_pcm_sw_params_set_stop_threshold(alsa_device.inhandle,
-            sw_params, 0x7fffffff);
-        check_error(err, "snd_pcm_sw_params_set_stop_threshold (input)");
-        err = snd_pcm_sw_params_set_avail_min(alsa_device.inhandle, sw_params,
-                                              frag_size);
-        check_error(err, "snd_pcm_sw_params_set_avail_min (input)");
-        err = snd_pcm_sw_params(alsa_device.inhandle, sw_params);
-        check_error(err, "snd_pcm_sw_params (input)");
-        
-        snd_pcm_sw_params_free(sw_params);
-        
-        snd_output_stdio_attach(&out, stderr, 0);
-#if 0
-        if (sys_verbose)
-        {
-            snd_pcm_dump_hw_setup(alsa_device.inhandle, out);
-            snd_pcm_dump_sw_setup(alsa_device.inhandle, out);
-        }
-#endif
-    }
-
-    if (outchans)
-    {
-        int foo;
-        if (sys_verbose)
-            post("opening sound output...");
-        err = snd_pcm_hw_params_malloc(&hw_params);
-        check_error(err, "snd_pcm_sw_params (output)");
-
-        // get the default params
-        err = snd_pcm_hw_params_any(alsa_device.outhandle, hw_params);
-        check_error(err, "snd_pcm_hw_params_any (output)");
-        // set interleaved access - FIXME deal with other access types
-        err = snd_pcm_hw_params_set_access(alsa_device.outhandle, hw_params,
-                                           SND_PCM_ACCESS_RW_INTERLEAVED);
-        check_error(err, "snd_pcm_hw_params_set_access (output)");
-
-            /* try to set interleaved access */
-        err = snd_pcm_hw_params_set_access(alsa_device.outhandle,
-            hw_params, SND_PCM_ACCESS_RW_INTERLEAVED);
-        if (err < 0)
-        {
-                /* OK, so try non-interleaved */
-            err = snd_pcm_hw_params_set_access(alsa_device.outhandle,
-                hw_params, SND_PCM_ACCESS_RW_NONINTERLEAVED);
-            if (err >= 0)
-            {
-                post("using non-interleaved audio");
-                alsa_device.outnoninterleave = 1;
-            }
-        }
-        check_error(err, "snd_pcm_hw_params_set_access (output)");
-
-
-        // Try to set 32 bit format first
-        err = snd_pcm_hw_params_set_format(alsa_device.outhandle, hw_params,
-                                             SND_PCM_FORMAT_S32);
-        if (err < 0)
-        {
-            err = snd_pcm_hw_params_set_format(alsa_device.outhandle,
-                                               hw_params,SND_PCM_FORMAT_S16);
-            check_error(err, "snd_pcm_hw_params_set_format (output)");
-            /* fprintf(stderr,
-                "PD-ALSA: 32 bit format not available - using 16\n"); */
-            alsa_samplewidth = 2;
-        }
-        else
-        {
-            alsa_samplewidth = 4;
-        }
-        // set the subformat
-        err = snd_pcm_hw_params_set_subformat(alsa_device.outhandle, hw_params,
-                                              SND_PCM_SUBFORMAT_STD);
-        check_error(err, "snd_pcm_hw_params_set_subformat (output)");
-        // set the number of channels
-        tmp_uint = outchans;
-        err = snd_pcm_hw_params_set_channels_min(alsa_device.outhandle,
-                                                 hw_params, &tmp_uint);
-        check_error(err, "snd_pcm_hw_params_set_channels (output)");
-        if (tmp_uint != (unsigned)outchans)
-            post("alsa: set output channels to %d", tmp_uint);
-        outchans = tmp_uint;
-        // set the sampling rate
-        err = snd_pcm_hw_params_set_rate_min(alsa_device.outhandle, hw_params,
-                                             &rate, 0);
-        check_error(err, "snd_pcm_hw_params_set_rate_min (output)");
-#if 0
-        err = snd_pcm_hw_params_get_rate(hw_params, &subunitdir);
-        post("output sample rate %d", err);
-#endif
-        // set the period - ie frag size
-#if 0
-        post("output period was %d, min %d, max %d\n",
-            snd_pcm_hw_params_get_period_size(hw_params, 0),
-            snd_pcm_hw_params_get_period_size_min(hw_params, 0),
-            snd_pcm_hw_params_get_period_size_max(hw_params, 0));
-#endif
-        // post("fragsize c %d", frag_size);
-#ifdef ALSAAPI9
-        err = snd_pcm_hw_params_set_period_size_near(alsa_device.outhandle,
-                                                    hw_params,
-                                                    (snd_pcm_uframes_t)
-                                                    frag_size, 0);
-#else
-        tmp_snd_pcm_uframes = frag_size;
-        err = snd_pcm_hw_params_set_period_size_near(alsa_device.outhandle,
-            hw_params, &tmp_snd_pcm_uframes, 0);
-#endif
-        // post("fragsize d %d", frag_size);
-        check_error(err, "snd_pcm_hw_params_set_period_size_near (output)");
-        // set the number of periods - ie numfrags
-#ifdef ALSAAPI9
-        err = snd_pcm_hw_params_set_periods_near(alsa_device.outhandle,
-                                                hw_params, nfrags, 0);
-#else
-        tmp_uint = nfrags;
-        err = snd_pcm_hw_params_set_periods_near(alsa_device.outhandle,
-            hw_params, &tmp_uint, 0);
-#endif
-        check_error(err, "snd_pcm_hw_params_set_periods_near (output)");
-        // set the buffer size
-#ifdef ALSAAPI9
-        err = snd_pcm_hw_params_set_buffer_size_near(alsa_device.outhandle,
-            hw_params, nfrags * frag_size);
-#else
-        tmp_snd_pcm_uframes = nfrags * frag_size;
-        err = snd_pcm_hw_params_set_buffer_size_near(alsa_device.outhandle,
-            hw_params, &tmp_snd_pcm_uframes);
-#endif
-        check_error(err, "snd_pcm_hw_params_set_buffer_size_near (output)");
-
-        err = snd_pcm_hw_params(alsa_device.outhandle, hw_params);
-        check_error(err, "snd_pcm_hw_params (output)");
-
-        snd_pcm_hw_params_free(hw_params);
-
-        err = snd_pcm_sw_params_malloc(&sw_params);
-        check_error(err, "snd_pcm_sw_params_malloc (output)");
-        err = snd_pcm_sw_params_current(alsa_device.outhandle, sw_params);
-        check_error(err, "snd_pcm_sw_params_current (output)");
-        err = snd_pcm_sw_params_set_start_threshold(alsa_device.outhandle,
-            sw_params, nfrags * frag_size);
-        check_error(err, "snd_pcm_sw_params_set_start_threshold (output)");
-        err = snd_pcm_sw_params_set_stop_threshold(alsa_device.outhandle,
-            sw_params, 0x7fffffff);
-        check_error(err, "snd_pcm_sw_params_set_stop_threshold (output)");
-        err = snd_pcm_sw_params_set_avail_min(alsa_device.outhandle, sw_params,
-            frag_size);
-        check_error(err, "snd_pcm_sw_params_set_avail_min (output)");
-        err = snd_pcm_sw_params(alsa_device.outhandle, sw_params);
-        check_error(err, "snd_pcm_sw_params (output)");
-        snd_pcm_sw_params_free(sw_params);
-        
-        snd_output_stdio_attach(&out, stderr, 0);
-#if 0
-        if (sys_verbose)
-        {
-            snd_pcm_dump_hw_setup(alsa_device.outhandle, out);
-            snd_pcm_dump_sw_setup(alsa_device.outhandle, out);
-        }
-#endif
-    }
-
-    if (inchans)
-      snd_pcm_prepare(alsa_device.inhandle);
-    if (outchans)
-      snd_pcm_prepare(alsa_device.outhandle);
-
-    // if duplex we can link the channels so they start together
-    if (inchans && outchans)
-      snd_pcm_link(alsa_device.inhandle, alsa_device.outhandle);
-
-    // set up the status variables
-    err = snd_pcm_status_malloc(&in_status);
-    check_error(err, "snd_pcm_status_malloc");
-    err = snd_pcm_status_malloc(&out_status);
-    check_error(err, "snd_pcm_status_malloc");
-
-    // set up the buffer
-    if (alsa_snd_buf)
-        free(alsa_snd_buf);
-    alsa_snd_buf = (void *)malloc(
-        sizeof(char) * alsa_samplewidth * DEFDACBLKSIZE *
-            (outchans > inchans ? outchans : inchans));
-    memset(alsa_snd_buf, 0, sizeof(char) * alsa_samplewidth * DEFDACBLKSIZE *
-            (outchans > inchans ? outchans : inchans));
-        /* make an array of pointers too in case we need them */
-    if (alsa_buf_ptrs)
-        free(alsa_buf_ptrs);
-    alsa_buf_ptrs = (void **)malloc(
-        sizeof(void *) * (outchans > inchans ? outchans : inchans));
-    for (i = 0; i < (outchans > inchans ? outchans : inchans); i++)
-        alsa_buf_ptrs[i] = (t_alsa_sample32 *)alsa_snd_buf + i * DEFDACBLKSIZE;
-
-    // fill the buffer with silence
-    if (outchans)
-    {
-        i = (frag_size * nfrags)/DEFDACBLKSIZE + 1;
-        while (i--)
-        {
-            if (alsa_device.outnoninterleave)
-                snd_pcm_writen(alsa_device.outhandle, alsa_buf_ptrs,
-                    DEFDACBLKSIZE);
-            else snd_pcm_writei(alsa_device.outhandle, alsa_snd_buf,
-                    DEFDACBLKSIZE);
-        }
-                /* confused about this: */
-        /* if ((err = snd_pcm_start(alsa_device.outhandle) < 0))
-            check_error(err, "output start failed\n"); */
-    }
-    else if (inchans)
-    {
-        if (snd_pcm_start(alsa_device.inhandle) < 0)
-            check_error(err, "input start failed\n");
-    }
-    alsa_outchannels = outchans;
-    alsa_inchannels = inchans;
-            
-    return (!(inchans || outchans));
-}
-
-void alsa_close_audio(void)
-{
-    int err;
-    if (alsa_inchannels)
-    {
-        err = snd_pcm_close(alsa_device.inhandle);
-        check_error(err, "snd_pcm_close (input)");
-    }
-    if (alsa_outchannels)
-    {
-        err = snd_pcm_close(alsa_device.outhandle);
-        check_error(err, "snd_pcm_close (output)");
-    }
-}
-
-// #define DEBUG_ALSA_XFER
-
-int alsa_send_dacs(void)
-{
-    static int16_t *sp;
-    static int xferno = 0;
-    static int callno = 0;
-    static double timenow;
-    double timelast;
-    t_sample *fp, *fp1, *fp2;
-    int i, j, k, err, devno = 0;
-    int inputcount = 0, outputcount = 0, inputlate = 0, outputlate = 0;
-    int result; 
-    int inchannels = (sys_inchannels > alsa_inchannels ?
-        alsa_inchannels : sys_inchannels);
-    int outchannels = (sys_outchannels > alsa_outchannels ?
-            alsa_outchannels : sys_outchannels);
-    unsigned int intransfersize = DEFDACBLKSIZE;
-    unsigned int outtransfersize = DEFDACBLKSIZE;
-
-    // get the status
-    if (!inchannels && !outchannels)
-    {
-        return SENDDACS_NO;
-    }
-    
-    timelast = timenow;
-    timenow = sys_getrealtime();
-
-#ifdef DEBUG_ALSA_XFER
-    if (timenow - timelast > 0.050)
-        fprintf(stderr, "(%d)",
-            (int)(1000 * (timenow - timelast))), fflush(stderr);
-#endif
-
-    callno++;
-
-    alsa_checkiosync();     /* check I/O are in sync and data not late */
-
-    if (alsa_inchannels)
-    {
-        snd_pcm_status(alsa_device.inhandle, in_status);
-        if (snd_pcm_status_get_avail(in_status) < intransfersize)
-            return SENDDACS_NO;
-    }
-    if (alsa_outchannels)
-    {
-        snd_pcm_status(alsa_device.outhandle, out_status);
-        if (snd_pcm_status_get_avail(out_status) < outtransfersize)
-            return SENDDACS_NO;
-    }
-
-    /* do output */
-    if (alsa_outchannels)
-    {
-        fp = sys_soundout;
-        if (alsa_samplewidth == 4)
-        {
-            if (alsa_device.outnoninterleave)
-            {
-                int n = outchannels * DEFDACBLKSIZE;
-                for (i = 0, fp1 = fp; i < n; i++)
-                {
-                    float s1 = *fp1 * INT32_MAX;
-                    ((t_alsa_sample32 *)alsa_snd_buf)[i] = CLIP32(s1);
-                }
-                n = alsa_outchannels * DEFDACBLKSIZE;
-                for (; i < n; i++)
-                    ((t_alsa_sample32 *)alsa_snd_buf)[i] = 0;
-            }
-            else
-            {
-                for (i = 0, fp1 = fp; i < outchannels; i++,
-                    fp1 += DEFDACBLKSIZE)
-                {
-                    for (j = i, k = DEFDACBLKSIZE, fp2 = fp1; k--;
-                         j += alsa_outchannels, fp2++)
-                    {
-                        float s1 = *fp2 * INT32_MAX;
-                        ((t_alsa_sample32 *)alsa_snd_buf)[j] = CLIP32(s1);
-                    } 
-                }
-            }
-        }
-        else
-        {
-            for (i = 0, fp1 = fp; i < outchannels; i++, fp1 += DEFDACBLKSIZE)
-            {
-                for (j = i, k = DEFDACBLKSIZE, fp2 = fp1; k--;
-                     j += alsa_outchannels, fp2++)
-                {
-                    int s = *fp2 * 32767.;
-                    if (s > 32767)
-                        s = 32767;
-                    else if (s < -32767)
-                        s = -32767;
-                    ((t_alsa_sample16 *)alsa_snd_buf)[j] = s;
-                }
-            }
-        }
-
-        if (alsa_device.outnoninterleave)
-            result = snd_pcm_writen(alsa_device.outhandle, alsa_buf_ptrs,
-                outtransfersize);
-        else result = snd_pcm_writei(alsa_device.outhandle, alsa_snd_buf,
-                outtransfersize);
-
-        if (result != (int)outtransfersize)
-        {
-    #ifdef DEBUG_ALSA_XFER
-            if (result >= 0 || errno == EAGAIN)
-                fprintf(stderr, "ALSA: write returned %d of %d\n",
-                        result, outtransfersize);
-            else fprintf(stderr, "ALSA: write: %s\n",
-                         snd_strerror(errno));
-            fprintf(stderr,
-                    "inputcount %d, outputcount %d, outbufsize %d\n",
-                    inputcount, outputcount, 
-                    (ALSA_EXTRABUFFER + sys_advance_samples)
-                    * alsa_samplewidth * outchannels);
-    #endif
-            sys_log_error(ERR_DACSLEPT);
-            return (SENDDACS_NO);
-        }
-
-        /* zero out the output buffer */
-        memset(sys_soundout, 0, DEFDACBLKSIZE * sizeof(*sys_soundout) *
-               sys_outchannels);
-        if (sys_getrealtime() - timenow > 0.002)
-        {
-    #ifdef DEBUG_ALSA_XFER
-            fprintf(stderr, "output %d took %d msec\n",
-                    callno, (int)(1000 * (timenow - timelast))), fflush(stderr);
-    #endif
-            timenow = sys_getrealtime();
-            sys_log_error(ERR_DACSLEPT);
-        }
-    }
-    /* do input */
-    if (alsa_inchannels)
-    {
-        if (alsa_device.innoninterleave)
-            result = snd_pcm_readn(alsa_device.inhandle, alsa_buf_ptrs,
-                intransfersize);
-        else result = snd_pcm_readi(alsa_device.inhandle, alsa_snd_buf,
-                intransfersize);
-        if (result < (int)intransfersize)
-        {
-#ifdef DEBUG_ALSA_XFER
-            if (result < 0)
-                fprintf(stderr,
-                        "snd_pcm_read %d %d: %s\n", 
-                        callno, xferno, snd_strerror(errno));
-            else fprintf(stderr,
-                         "snd_pcm_read %d %d returned only %d\n", 
-                         callno, xferno, result);
-            fprintf(stderr,
-                    "inputcount %d, outputcount %d, inbufsize %d\n",
-                    inputcount, outputcount, 
-                    (ALSA_EXTRABUFFER + sys_advance_samples)
-                    * alsa_samplewidth * inchannels);
-#endif
-            sys_log_error(ERR_ADCSLEPT);
-            return (SENDDACS_NO);
-        }
-        fp = sys_soundin;
-        if (alsa_samplewidth == 4)
-        {
-            if (alsa_device.innoninterleave)
-            {
-                int n = inchannels * DEFDACBLKSIZE;
-                for (i = 0, fp1 = fp; i < n; i++)
-                    *fp1 = (float) ((t_alsa_sample32 *)alsa_snd_buf)[i]
-                            * (1./ INT32_MAX);
-            }
-            else
-            {
-                for (i = 0, fp1 = fp; i < inchannels;
-                    i++, fp1 += DEFDACBLKSIZE)
-                {
-                    for (j = i, k = DEFDACBLKSIZE, fp2 = fp1; k--;
-                         j += alsa_inchannels, fp2++)
-                        *fp2 = (float) ((t_alsa_sample32 *)alsa_snd_buf)[j]
-                            * (1./ INT32_MAX);
-                }
-            }
-        }
-        else
-        {
-            for (i = 0, fp1 = fp; i < inchannels; i++, fp1 += DEFDACBLKSIZE)
-            {
-                for (j = i, k = DEFDACBLKSIZE, fp2 = fp1; k--;
-                    j += alsa_inchannels, fp2++)
-                        *fp2 = (float) ((t_alsa_sample16 *)alsa_snd_buf)[j]
-                            * 3.051850e-05;
-            }
-        }
-    }
-    xferno++;
-    if (sys_getrealtime() - timenow > 0.002)
-    {
-#ifdef DEBUG_ALSA_XFER
-        fprintf(stderr, "routine took %d msec\n",
-            (int)(1000 * (sys_getrealtime() - timenow)));
-#endif
-        sys_log_error(ERR_ADCSLEPT);
-    }
-    return SENDDACS_YES;
-}
-
-void alsa_printstate( void)
-{
-    int i, result;
-    snd_pcm_sframes_t indelay, outdelay;
-    if (sys_audioapi != API_ALSA)
-    {
-        error("restart-audio: implemented for ALSA only.");
-        return;
-    }
-    if (sys_inchannels)
-    {
-        result = snd_pcm_delay(alsa_device.inhandle, &indelay);
-        if (result < 0)
-            post("snd_pcm_delay 1 failed");
-        else post("in delay %d", indelay);
-    }
-    if (sys_outchannels)
-    {
-        result = snd_pcm_delay(alsa_device.outhandle, &outdelay);
-        if (result < 0)
-            post("snd_pcm_delay 2 failed");
-        else post("out delay %d", outdelay);
-    }
-    post("sum %d (%d mod 64)\n", indelay + outdelay, (indelay+outdelay)%64);
-
-    post("buf samples %d", alsa_buf_samps);
-}
-
-
-void alsa_resync( void)
-{
-    int i, result;
-    if (sys_audioapi != API_ALSA)
-    {
-        error("restart-audio: implemented for ALSA only.");
-        return;
-    }
-    memset(alsa_snd_buf, 0,
-        sizeof(char) * alsa_samplewidth * DEFDACBLKSIZE * sys_outchannels);
-    for (i = 0; i < 1000000; i++)
-    {
-        if (alsa_device.outnoninterleave)
-            result = snd_pcm_writen(alsa_device.outhandle, alsa_buf_ptrs,
-                DEFDACBLKSIZE);
-        else result = snd_pcm_writei(alsa_device.outhandle, alsa_snd_buf,
-                DEFDACBLKSIZE);
-        if (result != (int)DEFDACBLKSIZE)
-            break;
-    }
-    post("%d written", i);
-}
-
-void alsa_putzeros(int n)
-{
-    int i, result;
-    memset(alsa_snd_buf, 0,
-        sizeof(char) * alsa_samplewidth * DEFDACBLKSIZE * alsa_outchannels);
-    for (i = 0; i < n; i++)
-    {
-        if (alsa_device.outnoninterleave)
-            result = snd_pcm_writen(alsa_device.outhandle, alsa_buf_ptrs,
-                DEFDACBLKSIZE);
-        else result = snd_pcm_writei(alsa_device.outhandle, alsa_snd_buf,
-                DEFDACBLKSIZE);
-#if 0
-        if (result != DEFDACBLKSIZE)
-            post("result %d", result);
-#endif
-    }
-    /* post ("putzeros %d", n); */
-}
-
-void alsa_getzeros(int n)
-{
-    int i, result;
-    for (i = 0; i < n; i++)
-    {
-        result = snd_pcm_readi(alsa_device.inhandle, alsa_snd_buf,
-            DEFDACBLKSIZE);
-#if 0
-        if (result != DEFDACBLKSIZE)
-            post("result %d", result);
-#endif
-    }
-    /* post ("getzeros %d", n); */
-}
-
-    /* call this only if both input and output are open */
-static void alsa_checkiosync( void)
-{
-    int i, result, checkit = 1, giveup = 1000, alreadylogged = 0;
-    snd_pcm_sframes_t indelay, outdelay, defect;
-
-    if (!(alsa_outchannels && alsa_inchannels))
-        return;
-    while (checkit)
-    {
-        checkit = 0;
-        if (giveup-- <= 0)
-            return;
-        result = snd_pcm_delay(alsa_device.outhandle, &outdelay);
-        if (result < 0)
-        {
-            post("output snd_pcm_delay failed: %s", snd_strerror(result));
-            if (snd_pcm_status(alsa_device.outhandle, out_status) < 0)
-                post("output snd_pcm_status failed");
-            else post("astate %d",
-                 snd_pcm_status_get_state(out_status));
-            return;
-        }
-        if (outdelay < 0)
-            sys_log_error(ERR_DATALATE), alreadylogged = 1;
-
-        if (sys_inchannels)
-        {
-            result = snd_pcm_delay(alsa_device.inhandle, &indelay);
-            if (result < 0)
-            {
-                post("input snd_pcm_delay failed");
-                return;
-            }
-            defect = indelay + outdelay - alsa_buf_samps;
-            if (defect < -(3 * DEFDACBLKSIZE / 2) )
-            {
-                checkit = 1;
-                alsa_putzeros(1);
-                if (!alreadylogged)
-                    sys_log_error(ERR_RESYNC), alreadylogged = 1;
-            }
-            else if (defect > 0)
-            {
-                checkit = 1;
-                alsa_getzeros(1);           
-                if (!alreadylogged)
-                    sys_log_error(ERR_RESYNC), alreadylogged = 1;
-            }
-            /* if (alreadylogged)
-                post("in %d out %d defect %d", indelay, outdelay, defect); */
-        }
-    }
-}
-
-static int alsa_nnames = 0;
-static char **alsa_names = 0;
-
-void alsa_adddev(char *name)
-{
-    if (alsa_nnames)
-        alsa_names = (char **)t_resizebytes(alsa_names,
-            alsa_nnames * sizeof(char *),
-            (alsa_nnames+1) * sizeof(char *));
-    else alsa_names = (char **)t_getbytes(sizeof(char *));
-    alsa_names[alsa_nnames] = gensym(name)->s_name;
-    alsa_nnames++;
-}
-
-static void alsa_numbertoname(int devno, char *devname, int nchar)
-{
-    int ndev = 0, cardno = -1;
-    while (!snd_card_next(&cardno) && cardno >= 0)
-        ndev++;
-    if (devno < 2*ndev)
-    {
-        if (devno & 1)
-            snprintf(devname, nchar, "plughw:%d", devno/2);
-        else snprintf(devname, nchar, "hw:%d", devno/2);
-    }
-    else if (devno <2*ndev + alsa_nnames)
-        snprintf(devname, nchar, "%s", alsa_names[devno - 2*ndev]);
-    else snprintf(devname, nchar, "???");
-}
 
-    /* For each hardware card found, we list two devices, the "hard" and
-    "plug" one.  The card scan is derived from portaudio code. */
-void alsa_getdevs(char *indevlist, int *nindevs,
-    char *outdevlist, int *noutdevs, int *canmulti, 
-        int maxndev, int devdescsize)
-{
-    int ndev = 0, cardno = -1, i, j;
-    *canmulti = 0;  /* only one device; must be the same for input&output */
-    while (!snd_card_next(&cardno) && cardno >= 0)
-    {
-        snd_ctl_t *ctl;
-        snd_ctl_card_info_t *info;
-        char devname[80];
-        const char *desc;
-        if (2 * ndev + 2  > maxndev)
-            break;
-            /* apparently, "cardno" is just a counter; but check that here */
-        if (ndev != cardno)
-            fprintf(stderr, "oops: ALSA cards not reported in order?\n");
-        sprintf(devname, "hw:%d", cardno );
-        /* fprintf(stderr, "\ntry %s...\n", devname); */
-        if (snd_ctl_open(&ctl, devname, 0) >= 0)
-        {
-            snd_ctl_card_info_malloc(&info);
-            snd_ctl_card_info(ctl, info);
-            desc = snd_ctl_card_info_get_name(info);
-            snd_ctl_card_info_free(info);
-        }
-        else
-        {
-            fprintf(stderr, "ALSA card scan error\n");
-            desc = "???";
-        }
-        /* fprintf(stderr, "name: %s\n", snd_ctl_card_info_get_name(info)); */
-        sprintf(indevlist + 2*ndev * devdescsize, "%s (hardware)", desc);
-        sprintf(indevlist + (2*ndev + 1) * devdescsize, "%s (plug-in)", desc);
-        sprintf(outdevlist + 2*ndev * devdescsize, "%s (hardware)", desc);
-        sprintf(outdevlist + (2*ndev + 1) * devdescsize, "%s (plug-in)", desc);
-        ndev++;
-    }
-    for (i = 0, j = 2*ndev; i < alsa_nnames; i++, j++)
-    {
-        if (j >= maxndev)
-            break;
-        snprintf(indevlist + j * devdescsize, devdescsize, "%s", 
-            alsa_names[i]);
-    }
-    *nindevs = *noutdevs = j;
-}