merged in version_0_37_1test6

svn path=/trunk/; revision=1305

1 files changed, 0 insertions, 864 deletions

diff --git a/pd/portaudio/pa_jack/pa_jack.c b/pd/portaudio/pa_jack/pa_jack.c
deleted file mode 100644
index 4efeff81..00000000
--- a/pd/portaudio/pa_jack/pa_jack.c
+++ /dev/null
@@ -1,864 +0,0 @@
-/*
- * $Id: pa_jack.c,v 1.1.2.1 2002/07/31 04:22:56 joshua Exp $
- * PortAudio Portable Real-Time Audio Library
- * Latest Version at: http://www.portaudio.com
- * JACK Implementation by Joshua Haberman
- *
- * Copyright (c) 2002 Joshua Haberman <joshua@haberman.com>
- *
- * Based on the Open Source API proposed by Ross Bencina
- * Copyright (c) 1999-2002 Ross Bencina, Phil Burk
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files
- * (the "Software"), to deal in the Software without restriction,
- * including without limitation the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * Any person wishing to distribute modifications to the Software is
- * requested to send the modifications to the original developer so that
- * they can be incorporated into the canonical version.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
- * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
- * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <string.h>
-#include <regex.h>
-#include <stdlib.h>
-#include <stdio.h>
-
-#include <jack/types.h>
-#include <jack/jack.h>
-
-#include "pa_util.h"
-#include "pa_hostapi.h"
-#include "pa_stream.h"
-#include "pa_process.h"
-#include "pa_allocation.h"
-#include "pa_cpuload.h"
-
-PaError PaJack_Initialize( PaUtilHostApiRepresentation **hostApi,
-                           PaHostApiIndex hostApiIndex );
-
-/*
- * Functions that directly map to the PortAudio stream interface
- */
-
-static void Terminate( struct PaUtilHostApiRepresentation *hostApi );
-static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
-                           PaStream** s,
-                           PaDeviceIndex inputDevice,
-                           int numInputChannels,
-                           PaSampleFormat inputSampleFormat,
-                           unsigned long inputLatency,
-                           PaHostApiSpecificStreamInfo *inputStreamInfo,
-                           PaDeviceIndex outputDevice,
-                           int numOutputChannels,
-                           PaSampleFormat outputSampleFormat,
-                           unsigned long outputLatency,
-                           PaHostApiSpecificStreamInfo *outputStreamInfo,
-                           double sampleRate,
-                           unsigned long framesPerCallback,
-                           PaStreamFlags streamFlags,
-                           PortAudioCallback *callback,
-                           void *userData );
-static PaError CloseStream( PaStream* stream );
-static PaError StartStream( PaStream *stream );
-static PaError StopStream( PaStream *stream );
-static PaError AbortStream( PaStream *stream );
-static PaError IsStreamStopped( PaStream *s );
-static PaError IsStreamActive( PaStream *stream );
-static PaTimestamp GetStreamTime( PaStream *stream );
-static double GetStreamCpuLoad( PaStream* stream );
-
-/*
- * Data specific to this API
- */
-
-typedef struct
-{
-    PaUtilHostApiRepresentation commonHostApiRep;
-    PaUtilStreamInterface callbackStreamInterface;
-
-    PaUtilAllocationGroup *deviceInfoMemory;
-
-    jack_client_t *jack_client;
-    PaHostApiIndex hostApiIndex;
-}
-PaJackHostApiRepresentation;
-
-#define MAX_CLIENTS 100
-#define TRUE 1
-#define FALSE 0
-
-/*
- * Functions specific to this API
- */
-
-static PaError BuildDeviceList( PaJackHostApiRepresentation *jackApi );
-static int JackCallback( jack_nframes_t frames, void *userData );
-
-
-
-/*
- *
- * Implementation
- *
- */
-
-
-/* BuildDeviceList():
- *
- * The process of determining a list of PortAudio "devices" from
- * JACK's client/port system is fairly involved, so it is separated
- * into its own routine.
- */
-
-static PaError BuildDeviceList( PaJackHostApiRepresentation *jackApi )
-{
-    /* Utility macros for the repetitive process of allocating memory */
-
-    /* ... MALLOC: allocate memory as part of the device list
-     * allocation group */
-#define MALLOC(size) \
-     (PaUtil_GroupAllocateMemory( jackApi->deviceInfoMemory, (size) ))
-
-    /* ... MEMVERIFY: make sure we didn't get NULL */
-#define MEMVERIFY(ptr) \
-    if( (ptr) == NULL ) return paInsufficientMemory;
-
-    /* JACK has no concept of a device.  To JACK, there are clients
-     * which have an arbitrary number of ports.  To make this
-     * intelligible to PortAudio clients, we will group each JACK client
-     * into a device, and make each port of that client a channel */
-
-    PaUtilHostApiRepresentation *commonApi = &jackApi->commonHostApiRep;
-
-    const char **jack_ports;
-    char *client_names[MAX_CLIENTS];
-    int num_clients = 0;
-    int port_index, client_index, i;
-    double *globalSampleRate;
-    regex_t port_regex;
-
-    /* since we are rebuilding the list of devices, free all memory
-     * associated with the previous list */
-    PaUtil_FreeAllAllocations( jackApi->deviceInfoMemory );
-
-    /* We can only retrieve the list of clients indirectly, by first
-     * asking for a list of all ports, then parsing the port names
-     * according to the client_name:port_name convention (which is
-     * enforced by jackd) */
-    jack_ports = jack_get_ports( jackApi->jack_client, "", "", 0 );
-
-    if( jack_ports == NULL )
-        return paHostError;
-
-    /* Parse the list of ports, using a regex to grab the client names */
-    regcomp( &port_regex, "^[^:]*", REG_EXTENDED );
-
-    /* Build a list of clients from the list of ports */
-    for( port_index = 0; jack_ports[port_index] != NULL; port_index++ )
-    {
-        int client_seen;
-        regmatch_t match_info;
-        char tmp_client_name[100];
-
-        /* extract the client name from the port name, using a regex
-         * that parses the clientname:portname syntax */
-        regexec( &port_regex, jack_ports[port_index], 1, &match_info, 0 );
-        memcpy( tmp_client_name, &jack_ports[port_index][match_info.rm_so],
-                match_info.rm_eo - match_info.rm_so );
-        tmp_client_name[ match_info.rm_eo - match_info.rm_so ] = '\0';
-
-        /* do we know about this port's client yet? */
-        client_seen = FALSE;
-
-        for( i = 0; i < num_clients; i++ )
-            if( strcmp( tmp_client_name, client_names[i] ) == 0 )
-                client_seen = TRUE;
-
-        if( client_seen == FALSE )
-        {
-            client_names[num_clients] = (char*)MALLOC(strlen(tmp_client_name) + 1);
-            MEMVERIFY( client_names[num_clients] );
-
-            /* The alsa_pcm client should go in spot 0.  If this
-             * is the alsa_pcm client AND we are NOT about to put
-             * it in spot 0 put it in spot 0 and move whatever
-             * was already in spot 0 to the end. */
-            if( strcmp( "alsa_pcm", tmp_client_name ) == 0 && num_clients > 0 )
-            {
-                /* alsa_pcm goes in spot 0 */
-                strcpy( client_names[ num_clients ], client_names[0] );
-                strcpy( client_names[0], "alsa_pcm" );
-                num_clients++;
-            }
-            else
-            {
-                /* put the new client at the end of the client list */
-                strcpy( client_names[ num_clients ], tmp_client_name );
-                num_clients++;
-            }
-        }
-    }
-    free( jack_ports );
-
-    /* Now we have a list of clients, which will become the list of
-     * PortAudio devices. */
-
-    commonApi->deviceCount = num_clients;
-    commonApi->defaultInputDeviceIndex = 0;
-    commonApi->defaultOutputDeviceIndex = 0;
-
-    /* there is one global sample rate all clients must conform to */
-
-    globalSampleRate = (double*)MALLOC( sizeof(double) );
-    MEMVERIFY( globalSampleRate );
-    *globalSampleRate = jack_get_sample_rate( jackApi->jack_client );
-
-    commonApi->deviceInfos = (PaDeviceInfo**)MALLOC( sizeof(PaDeviceInfo*) *
-                                                     num_clients );
-    MEMVERIFY(commonApi->deviceInfos);
-
-    /* Create a PaDeviceInfo structure for every client */
-    for( client_index = 0; client_index < num_clients; client_index++ )
-    {
-        char regex_pattern[100];
-        PaDeviceInfo *curDevInfo;
-
-        curDevInfo = (PaDeviceInfo*)MALLOC( sizeof(PaDeviceInfo) );
-        MEMVERIFY( curDevInfo );
-
-        curDevInfo->name = (char*)MALLOC( strlen(client_names[client_index]) + 1 );
-        MEMVERIFY( curDevInfo->name );
-        strcpy( (char*)curDevInfo->name, client_names[client_index] );
-
-        curDevInfo->structVersion = 2;
-        curDevInfo->hostApi = jackApi->hostApiIndex;
-
-        /* JACK is very inflexible: there is one sample rate the whole
-         * system must run at, and all clients must speak IEEE float. */
-        curDevInfo->numSampleRates = 1;
-        curDevInfo->sampleRates = globalSampleRate;
-        curDevInfo->nativeSampleFormats = paFloat32|paNonInterleaved;
-
-        /* To determine how many input and output channels are available,
-         * we re-query jackd with more specific parameters. */
-
-        sprintf( regex_pattern, "%s:.*", client_names[client_index] );
-
-        /* ... what are your output ports (that we could input to)? */
-        jack_ports = jack_get_ports( jackApi->jack_client, regex_pattern,
-                                     NULL, JackPortIsOutput);
-        curDevInfo->maxInputChannels = 0;
-        for( i = 0; jack_ports[i] != NULL ; i++)
-        {
-            /* The number of ports returned is the number of output channels.
-             * We don't care what they are, we just care how many */
-            curDevInfo->maxInputChannels++;
-        }
-        free(jack_ports);
-
-        /* ... what are your input ports (that we could output to)? */
-        jack_ports = jack_get_ports( jackApi->jack_client, regex_pattern,
-                                     NULL, JackPortIsInput);
-        curDevInfo->maxOutputChannels = 0;
-        for( i = 0; jack_ports[i] != NULL ; i++)
-        {
-            /* The number of ports returned is the number of input channels.
-             * We don't care what they are, we just care how many */
-            curDevInfo->maxOutputChannels++;
-        }
-        free(jack_ports);
-
-        /* Add this client to the list of devices */
-        commonApi->deviceInfos[client_index] = curDevInfo;
-    }
-
-#undef MALLOC
-#undef MEMVERIFY
-    return paNoError;
-}
-
-PaError PaJack_Initialize( PaUtilHostApiRepresentation **hostApi,
-                           PaHostApiIndex hostApiIndex )
-{
-    PaError result = paNoError;
-    PaJackHostApiRepresentation *jackHostApi;
-
-    jackHostApi = (PaJackHostApiRepresentation*)
-        PaUtil_AllocateMemory( sizeof(PaJackHostApiRepresentation) );
-    if( !jackHostApi )
-    {
-        result = paInsufficientMemory;
-        goto error;
-    }
-
-    /* Try to become a client of the JACK server.  If we cannot do
-     * this, than this API cannot be used. */
-
-    jackHostApi->jack_client = jack_client_new( "PortAudio client" );
-    if( jackHostApi->jack_client == 0 )
-    {
-       /* the V19 development docs say that if an implementation
-        * detects that it cannot be used, it should return a NULL
-        * interface and paNoError */
-       result = paNoError;
-       *hostApi = NULL;
-       goto error;
-    }
-
-    jackHostApi->deviceInfoMemory = PaUtil_CreateAllocationGroup();
-    if( !jackHostApi->deviceInfoMemory )
-    {
-        result = paInsufficientMemory;
-        goto error;
-    }
-
-    jackHostApi->hostApiIndex = hostApiIndex;
-
-    *hostApi = &jackHostApi->commonHostApiRep;
-    (*hostApi)->info.structVersion = 1;
-    (*hostApi)->info.type = paInDevelopment;
-    (*hostApi)->info.name = "JACK Audio Connection Kit";
-
-    /* Build a device list by querying the JACK server */
-
-    result = BuildDeviceList( jackHostApi );
-    if( result != paNoError )
-       goto error;
-
-    /* Register functions */
-
-    (*hostApi)->Terminate = Terminate;
-    (*hostApi)->OpenStream = OpenStream;
-
-    PaUtil_InitializeStreamInterface( &jackHostApi->callbackStreamInterface,
-                                      CloseStream, StartStream,
-                                      StopStream, AbortStream,
-                                      IsStreamStopped, IsStreamActive,
-                                      GetStreamTime, GetStreamCpuLoad,
-                                      PaUtil_DummyReadWrite, PaUtil_DummyReadWrite,
-                                      PaUtil_DummyGetAvailable,
-                                      PaUtil_DummyGetAvailable );
-
-    return result;
-
-error:
-    if( jackHostApi )
-    {
-        if( jackHostApi->deviceInfoMemory )
-        {
-            PaUtil_FreeAllAllocations( jackHostApi->deviceInfoMemory );
-            PaUtil_DestroyAllocationGroup( jackHostApi->deviceInfoMemory );
-        }
-
-        PaUtil_FreeMemory( jackHostApi );
-    }
-    return result;
-}
-
-
-static void Terminate( struct PaUtilHostApiRepresentation *hostApi )
-{
-    PaJackHostApiRepresentation *jackHostApi = (PaJackHostApiRepresentation*)hostApi;
-
-    jack_client_close( jackHostApi->jack_client );
-
-    if( jackHostApi->deviceInfoMemory )
-    {
-        PaUtil_FreeAllAllocations( jackHostApi->deviceInfoMemory );
-        PaUtil_DestroyAllocationGroup( jackHostApi->deviceInfoMemory );
-    }
-
-    PaUtil_FreeMemory( jackHostApi );
-}
-
-
-/* PaJackStream - a stream data structure specifically for this implementation */
-
-typedef struct PaJackStream
-{
-    PaUtilStreamRepresentation streamRepresentation;
-    PaUtilBufferProcessor bufferProcessor;
-    PaUtilCpuLoadMeasurer cpuLoadMeasurer;
-
-    /* our input and output ports */
-    jack_port_t **local_input_ports;
-    jack_port_t **local_output_ports;
-
-    /* the input and output ports of the client we are connecting to */
-    jack_port_t **remote_input_ports;
-    jack_port_t **remote_output_ports;
-
-    int num_incoming_connections;
-    int num_outgoing_connections;
-
-    jack_client_t *jack_client;
-
-    /* The stream is running if it's still producing samples.
-     * The stream is active if samples it produced are still being heard.
-     */
-    int is_running;
-    int is_active;
-
-    jack_nframes_t t0;
-    unsigned long total_frames_sent;
-
-    PaUtilAllocationGroup *stream_memory;
-}
-PaJackStream;
-
-static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi,
-                           PaStream** s,
-                           PaDeviceIndex inputDevice,
-                           int numInputChannels,
-                           PaSampleFormat inputSampleFormat,
-                           unsigned long inputLatency,
-                           PaHostApiSpecificStreamInfo *inputStreamInfo,
-                           PaDeviceIndex outputDevice,
-                           int numOutputChannels,
-                           PaSampleFormat outputSampleFormat,
-                           unsigned long outputLatency,
-                           PaHostApiSpecificStreamInfo *outputStreamInfo,
-                           double sampleRate,
-                           unsigned long framesPerCallback,
-                           PaStreamFlags streamFlags,
-                           PortAudioCallback *callback,
-                           void *userData )
-{
-    PaError result = paNoError;
-    PaJackHostApiRepresentation *jackHostApi = (PaJackHostApiRepresentation*)hostApi;
-    PaJackStream *stream = 0;
-    char port_string[100];
-    char regex_pattern[100];
-    const char **jack_ports;
-    int jack_max_buffer_size = jack_get_buffer_size( jackHostApi->jack_client );
-    int i;
-
-    /* the client has no say over the frames per callback */
-
-    (void)framesPerCallback;
-
-    /* Preliminary checks */
-
-    /* ... check that input device can support numInputChannels */
-
-    if( inputDevice != paNoDevice  &&
-       numInputChannels > hostApi->deviceInfos[ inputDevice ]->maxInputChannels )
-        return paInvalidChannelCount;
-
-    /* ... check that output device can support numOutputChannels */
-
-    if( outputDevice != paNoDevice  &&
-       numOutputChannels > hostApi->deviceInfos[ outputDevice ]->maxOutputChannels)
-        return paInvalidChannelCount;
-
-    /* ... check that the sample rate exactly matches the ONE acceptable rate */
-
-#define ABS(x) ( (x) > 0 ? (x) : -(x) )
-    if( ABS(sampleRate - hostApi->deviceInfos[0]->sampleRates[0]) > 1 )
-       return paInvalidSampleRate;
-#undef ABS
-
-    /* ... this implementation doesn't use custom stream info */
-
-    if( inputStreamInfo )
-        return paIncompatibleStreamInfo;
-
-    /* ... this implementation doesn't use custom stream info */
-
-    if( outputStreamInfo )
-        return paIncompatibleStreamInfo; 
-
-    /* ... this implementation doesn't use platform-specific flags */
-    if( (streamFlags & paPlatformSpecificFlags) != 0 )
-        return paInvalidFlag;
-
-    /* Allocate memory for structuures */
-
-#define MALLOC(size) \
-    (PaUtil_GroupAllocateMemory( stream->stream_memory, (size) ))
-
-#define MEMVERIFY(ptr) \
-    if( (ptr) == NULL ) \
-    { \
-        result = paInsufficientMemory; \
-        goto error; \
-    }
-
-    stream = (PaJackStream*)PaUtil_AllocateMemory( sizeof(PaJackStream) );
-    MEMVERIFY( stream );
-
-    stream->stream_memory = PaUtil_CreateAllocationGroup();
-    stream->jack_client = jackHostApi->jack_client;
-    PaUtil_InitializeCpuLoadMeasurer( &stream->cpuLoadMeasurer, sampleRate );
-
-    stream->local_input_ports =
-        (jack_port_t**) MALLOC(sizeof(jack_port_t*) * numInputChannels );
-    stream->local_output_ports =
-        (jack_port_t**) MALLOC( sizeof(jack_port_t*) * numOutputChannels );
-    stream->remote_output_ports =
-        (jack_port_t**) MALLOC( sizeof(jack_port_t*) * numInputChannels );
-    stream->remote_input_ports =
-        (jack_port_t**) MALLOC( sizeof(jack_port_t*) * numOutputChannels );
-
-    MEMVERIFY( stream->local_input_ports );
-    MEMVERIFY( stream->local_output_ports );
-    MEMVERIFY( stream->remote_input_ports );
-    MEMVERIFY( stream->remote_output_ports );
-
-    stream->num_incoming_connections = numInputChannels;
-    stream->num_outgoing_connections = numOutputChannels;
-
-    if( callback )
-    {
-        PaUtil_InitializeStreamRepresentation( &stream->streamRepresentation,
-              &jackHostApi->callbackStreamInterface, callback, userData );
-    }
-    else
-    {
-        /* we do not support blocking I/O */
-        return paBadIODeviceCombination;
-    }
-
-    /* create the JACK ports.  We cannot connect them until audio
-     * processing begins */
-
-    for( i = 0; i < numInputChannels; i++ )
-    {
-        sprintf( port_string, "in_%d", i );
-        stream->local_input_ports[i] = jack_port_register(
-              jackHostApi->jack_client, port_string,
-              JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0 );
-    }
-
-    for( i = 0; i < numOutputChannels; i++ )
-    {
-        sprintf( port_string, "out_%d", i );
-        stream->local_output_ports[i] = jack_port_register(
-             jackHostApi->jack_client, port_string,
-             JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0 );
-    }
-
-    /* look up the jack_port_t's for the remote ports.  We could do
-     * this at stream start time, but doing it here ensures the
-     * name lookup only happens once. */
-
-    if( numInputChannels > 0 )
-    {
-        /* ... remote output ports (that we input from) */
-        sprintf( regex_pattern, "%s:.*", hostApi->deviceInfos[ inputDevice ]->name );
-        jack_ports = jack_get_ports( jackHostApi->jack_client, regex_pattern,
-                                     NULL, JackPortIsOutput);
-        for( i = 0; i < numInputChannels && jack_ports[i]; i++ )
-        {
-            stream->remote_output_ports[i] = jack_port_by_name(
-                 jackHostApi->jack_client, jack_ports[i] );
-        }
-        if( i < numInputChannels )
-        {
-            /* we found fewer ports than we expected */
-            return paInternalError;
-        }
-        free( jack_ports );  // XXX: this doesn't happen if we exit prematurely
-    }
-
-
-    if( numOutputChannels > 0 )
-    {
-        /* ... remote input ports (that we output to) */
-        sprintf( regex_pattern, "%s:.*", hostApi->deviceInfos[ outputDevice ]->name );
-        jack_ports = jack_get_ports( jackHostApi->jack_client, regex_pattern,
-                                     NULL, JackPortIsInput);
-        for( i = 0; i < numOutputChannels && jack_ports[i]; i++ )
-        {
-            stream->remote_input_ports[i] = jack_port_by_name(
-                 jackHostApi->jack_client, jack_ports[i] );
-        }
-        if( i < numOutputChannels )
-        {
-            /* we found fewer ports than we expected */
-            return paInternalError;
-        }
-        free( jack_ports );  // XXX: this doesn't happen if we exit prematurely
-    }
-
-    result =  PaUtil_InitializeBufferProcessor(
-                  &stream->bufferProcessor,
-                  numInputChannels,
-                  inputSampleFormat,
-                  paFloat32,            /* hostInputSampleFormat */
-                  numOutputChannels,
-                  outputSampleFormat,
-                  paFloat32,            /* hostOutputSampleFormat */
-                  sampleRate,
-                  streamFlags,
-                  framesPerCallback,
-                  jack_max_buffer_size,
-                  paUtilFixedHostBufferSize,
-                  callback,
-                  userData );
-
-    if( result != paNoError )
-        goto error;
-
-    stream->is_running = FALSE;
-    stream->t0 = -1;/* set the first time through the callback*/
-    stream->total_frames_sent = 0;
-
-    jack_set_process_callback( jackHostApi->jack_client, JackCallback, stream );
-
-    *s = (PaStream*)stream;
-
-    return result;
-
-error:
-    if( stream )
-    {
-        if( stream->stream_memory )
-        {
-            PaUtil_FreeAllAllocations( stream->stream_memory );
-            PaUtil_DestroyAllocationGroup( stream->stream_memory );
-        }
-
-        PaUtil_FreeMemory( stream );
-    }
-
-    return result;
-
-#undef MALLOC
-#undef MEMVERIFY
-}
-
-
-static int JackCallback( jack_nframes_t frames, void *userData )
-{
-    PaJackStream *stream = (PaJackStream*)userData;
-    PaTimestamp outTime = 0; /* IMPLEMENT ME */
-    int callbackResult;
-    int chn;
-    int framesProcessed;
-
-    if( stream->t0 == -1 )
-    {
-        if( stream->num_outgoing_connections == 0 )
-        {
-            /* TODO: how to handle stream time for capture-only operation? */
-        }
-        else
-        {
-            /* the beginning time needs to be initialized */
-            stream->t0 = jack_frame_time( stream->jack_client ) -
-                         jack_frames_since_cycle_start( stream->jack_client) +
-                         jack_port_get_total_latency( stream->jack_client,
-                                                      stream->local_output_ports[0] );
-        }
-    }
-
-    PaUtil_BeginCpuLoadMeasurement( &stream->cpuLoadMeasurer );
-
-    PaUtil_BeginBufferProcessing( &stream->bufferProcessor, outTime );
-
-    for( chn = 0; chn < stream->num_incoming_connections; chn++ )
-    {
-        jack_default_audio_sample_t *channel_buf;
-        channel_buf = (jack_default_audio_sample_t*)
-            jack_port_get_buffer( stream->local_input_ports[chn],
-                                  frames );
-
-        PaUtil_SetNonInterleavedInputChannel( &stream->bufferProcessor,
-                                              chn,
-                                              channel_buf );
-    }
-
-    for( chn = 0; chn < stream->num_outgoing_connections; chn++ )
-    {
-        jack_default_audio_sample_t *channel_buf;
-        channel_buf = (jack_default_audio_sample_t*)
-            jack_port_get_buffer( stream->local_output_ports[chn],
-                                  frames );
-
-        PaUtil_SetNonInterleavedOutputChannel( &stream->bufferProcessor,
-                                               chn,
-                                               channel_buf );
-    }
-
-    if( stream->num_incoming_connections > 0 )
-        PaUtil_SetInputFrameCount( &stream->bufferProcessor, frames );
-
-    if( stream->num_outgoing_connections > 0 )
-        PaUtil_SetOutputFrameCount( &stream->bufferProcessor, frames );
-
-    framesProcessed = PaUtil_EndBufferProcessing( &stream->bufferProcessor,
-                                                  &callbackResult );
-
-    PaUtil_EndCpuLoadMeasurement( &stream->cpuLoadMeasurer, framesProcessed );
-    stream->total_frames_sent += frames;
-
-
-    if( callbackResult == paContinue )
-    {
-        /* nothing special */
-    }
-    else if( callbackResult == paAbort )
-    {
-        /* finish playback immediately  */
-
-        /* TODO: memset 0 the outgoing samples to "cancel" them */
-
-        stream->is_active = FALSE;
-
-        /* return nonzero so we get deactivated (and the callback won't
-         * get called again) */
-        return 1;
-    }
-    else
-    {
-        /* User callback has asked us to stop with paComplete or other non-zero value. */
-
-        stream->is_active = FALSE;
-
-        /* return nonzero so we get deactivated (and the callback won't
-         * get called again) */
-        return 1;
-    }
-    return 0;
-}
-
-
-/*
-    When CloseStream() is called, the multi-api layer ensures that
-    the stream has already been stopped or aborted.
-*/
-static PaError CloseStream( PaStream* s )
-{
-    PaError result = paNoError;
-    PaJackStream *stream = (PaJackStream*)s;
-
-    PaUtil_TerminateStreamRepresentation( &stream->streamRepresentation );
-    PaUtil_FreeMemory( stream );
-
-    return result;
-}
-
-
-static PaError StartStream( PaStream *s )
-{
-    PaError result = paNoError;
-    PaJackStream *stream = (PaJackStream*)s;
-    int i;
-
-    /* start the audio thread */
-
-    jack_activate( stream->jack_client );
-
-    /* connect the ports */
-
-    /* NOTE: I would rather use jack_port_connect which uses jack_port_t's
-     * instead of port names, but it is not implemented yet. */
-    if( stream->num_incoming_connections > 0 )
-    {
-        for( i = 0; i < stream->num_incoming_connections; i++ )
-            jack_connect( stream->jack_client,
-                    jack_port_name(stream->remote_output_ports[i]),
-                    jack_port_name(stream->local_input_ports[i] ) );
-    }
-
-    if( stream->num_outgoing_connections > 0 )
-    {
-        for( i = 0; i < stream->num_outgoing_connections; i++ )
-            jack_connect( stream->jack_client,
-                    jack_port_name(stream->local_output_ports[i]),
-                    jack_port_name(stream->remote_input_ports[i]) );
-    }
-
-    stream->is_running = TRUE;
-
-    return result;
-}
-
-
-static PaError StopStream( PaStream *s )
-{
-    PaError result = paNoError;
-    PaJackStream *stream = (PaJackStream*)s;
-
-    /* note: this automatically disconnects all ports, since a deactivated
-     * client is not allowed to have any ports connected */
-    jack_deactivate( stream->jack_client );
-
-    stream->is_running = FALSE;
-
-    /* TODO: block until playback complete */
-
-    stream->is_active = FALSE;
-
-    return result;
-}
-
-
-static PaError AbortStream( PaStream *s )
-{
-    PaError result = paNoError;
-    PaJackStream *stream = (PaJackStream*)s;
-
-    /* There's no way to cancel samples already submitted, but we can
-     * return immediately */
-
-    /* note: this automatically disconnects all ports, since a deactivated
-     * client is not allowed to have any ports connected */
-    jack_deactivate( stream->jack_client );
-
-    stream->is_running = FALSE;
-    stream->is_active = FALSE;
-
-    return result;
-}
-
-
-static PaError IsStreamStopped( PaStream *s )
-{
-    PaJackStream *stream = (PaJackStream*)s;
-
-    return stream->is_running == FALSE;
-}
-
-
-static PaError IsStreamActive( PaStream *s )
-{
-    PaJackStream *stream = (PaJackStream*)s;
-
-    return stream->is_active == TRUE;
-}
-
-
-static PaTimestamp GetStreamTime( PaStream *s )
-{
-    PaJackStream *stream = (PaJackStream*)s;
-
-    /* TODO: what if we're recording-only? */
-    return jack_frame_time( stream->jack_client ) - stream->t0;
-}
-
-
-static double GetStreamCpuLoad( PaStream* s )
-{
-    PaJackStream *stream = (PaJackStream*)s;
-
-    return PaUtil_GetCpuLoad( &stream->cpuLoadMeasurer );
-}
-
-