1.1 --- a/.hgignore	Thu Nov 03 15:14:44 2011 -0700
     1.2 +++ b/.hgignore	Fri Nov 18 16:02:44 2011 -0700
     1.3 @@ -1,5 +1,4 @@
     1.4  syntax: glob
     1.5 -send.c
     1.6  build*
     1.7  html*
     1.8  java/.classpath

     2.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     2.2 +++ b/Alc/backends/send.c	Fri Nov 18 16:02:44 2011 -0700
     2.3 @@ -0,0 +1,479 @@
     2.4 +
     2.5 +#include "config.h"
     2.6 +#include <stdlib.h>
     2.7 +#include "alMain.h"
     2.8 +#include "AL/al.h"
     2.9 +#include "AL/alc.h"
    2.10 +#include "alSource.h"
    2.11 +#include <jni.h>
    2.12 +
    2.13 +//////////////////// Summary
    2.14 +
    2.15 +struct send_data;
    2.16 +struct context_data;
    2.17 +
    2.18 +static void addContext(ALCdevice *, ALCcontext *);
    2.19 +static void syncContexts(ALCcontext *master, ALCcontext *slave);
    2.20 +static void syncSources(ALsource *master, ALsource *slave, 
    2.21 +			ALCcontext *masterCtx, ALCcontext *slaveCtx);
    2.22 +
    2.23 +static void syncSourcei(ALuint master, ALuint slave,
    2.24 +			ALCcontext *masterCtx, ALCcontext *ctx2, ALenum param);
    2.25 +static void syncSourcef(ALuint master, ALuint slave,
    2.26 +			ALCcontext *masterCtx, ALCcontext *ctx2, ALenum param);
    2.27 +static void syncSource3f(ALuint master, ALuint slave,
    2.28 +			ALCcontext *masterCtx, ALCcontext *ctx2, ALenum param);
    2.29 +
    2.30 +static void swapInContext(ALCdevice *, struct context_data *);
    2.31 +static void saveContext(ALCdevice *, struct context_data *);
    2.32 +static void limitContext(ALCdevice *, ALCcontext *);
    2.33 +static void unLimitContext(ALCdevice *);
    2.34 +
    2.35 +static void init(ALCdevice *);
    2.36 +static void renderData(ALCdevice *, int samples);
    2.37 +
    2.38 +#define UNUSED(x)  (void)(x)
    2.39 +////////////////////  State
    2.40 +
    2.41 +typedef struct context_data {
    2.42 +  ALfloat ClickRemoval[MAXCHANNELS];
    2.43 +  ALfloat PendingClicks[MAXCHANNELS];
    2.44 +  ALvoid *renderBuffer;
    2.45 +  ALCcontext *ctx;
    2.46 +} context_data;
    2.47 +
    2.48 +typedef struct send_data {
    2.49 +  ALuint size;
    2.50 +  context_data **contexts;
    2.51 +  ALuint numContexts;
    2.52 +  ALuint maxContexts;
    2.53 +} send_data;
    2.54 +////////////////////  Context Creation / Synchronization
    2.55 +
    2.56 +#define _MAKE_SYNC(NAME, INIT_EXPR, GET_EXPR, SET_EXPR)	\
    2.57 +  void NAME (ALuint sourceID1, ALuint sourceID2,	\
    2.58 +	     ALCcontext *ctx1, ALCcontext *ctx2,	\
    2.59 +	     ALenum param){				\
    2.60 +    INIT_EXPR;						\
    2.61 +    ALCcontext *current = alcGetCurrentContext();	\
    2.62 +    alcMakeContextCurrent(ctx1);			\
    2.63 +    GET_EXPR;						\
    2.64 +    alcMakeContextCurrent(ctx2);			\
    2.65 +    SET_EXPR;						\
    2.66 +    alcMakeContextCurrent(current);			\
    2.67 +  }
    2.68 +  
    2.69 +#define MAKE_SYNC(NAME, TYPE, GET, SET)			\
    2.70 +  _MAKE_SYNC(NAME,					\
    2.71 +	     TYPE value,				\
    2.72 +             GET(sourceID1, param, &value),		\
    2.73 +             SET(sourceID2, param, value))
    2.74 +  
    2.75 +#define MAKE_SYNC3(NAME, TYPE, GET, SET)				\
    2.76 +  _MAKE_SYNC(NAME,							\
    2.77 +	     TYPE value1; TYPE value2; TYPE value3;,			\
    2.78 +	     GET(sourceID1, param, &value1, &value2, &value3),		\
    2.79 +	     SET(sourceID2, param,  value1,  value2,  value3))
    2.80 +
    2.81 +MAKE_SYNC( syncSourcei,  ALint,   alGetSourcei,  alSourcei);
    2.82 +MAKE_SYNC( syncSourcef,  ALfloat, alGetSourcef,  alSourcef);
    2.83 +MAKE_SYNC3(syncSource3i, ALint,   alGetSource3i, alSource3i);
    2.84 +MAKE_SYNC3(syncSource3f, ALfloat, alGetSource3f, alSource3f);
    2.85 +  
    2.86 +void syncSources(ALsource *masterSource, ALsource *slaveSource, 
    2.87 +		 ALCcontext *masterCtx, ALCcontext *slaveCtx){
    2.88 +  ALuint master = masterSource->source;
    2.89 +  ALuint slave = slaveSource->source;
    2.90 +  ALCcontext *current = alcGetCurrentContext();
    2.91 +
    2.92 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_PITCH);
    2.93 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_GAIN);
    2.94 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_MAX_DISTANCE);
    2.95 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_ROLLOFF_FACTOR);
    2.96 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_REFERENCE_DISTANCE);
    2.97 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_MIN_GAIN);
    2.98 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_MAX_GAIN);
    2.99 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_CONE_OUTER_GAIN);
   2.100 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_CONE_INNER_ANGLE);
   2.101 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_CONE_OUTER_ANGLE);
   2.102 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_SEC_OFFSET);
   2.103 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_SAMPLE_OFFSET);
   2.104 +  syncSourcef(master,slave,masterCtx,slaveCtx,AL_BYTE_OFFSET);
   2.105 +    
   2.106 +  syncSource3f(master,slave,masterCtx,slaveCtx,AL_POSITION);
   2.107 +  syncSource3f(master,slave,masterCtx,slaveCtx,AL_VELOCITY);
   2.108 +  syncSource3f(master,slave,masterCtx,slaveCtx,AL_DIRECTION);
   2.109 +  
   2.110 +  syncSourcei(master,slave,masterCtx,slaveCtx,AL_SOURCE_RELATIVE);
   2.111 +  syncSourcei(master,slave,masterCtx,slaveCtx,AL_LOOPING);
   2.112 +
   2.113 +  alcMakeContextCurrent(masterCtx);
   2.114 +  ALint source_type;
   2.115 +  alGetSourcei(master, AL_SOURCE_TYPE, &source_type);
   2.116 +
   2.117 +  // Only static sources are currently synchronized! 
   2.118 +  if (AL_STATIC == source_type){
   2.119 +    ALint master_buffer;
   2.120 +    ALint slave_buffer;
   2.121 +    alGetSourcei(master, AL_BUFFER, &master_buffer);
   2.122 +    alcMakeContextCurrent(slaveCtx);
   2.123 +    alGetSourcei(slave, AL_BUFFER, &slave_buffer);
   2.124 +    if (master_buffer != slave_buffer){
   2.125 +      alSourcei(slave, AL_BUFFER, master_buffer);
   2.126 +    }
   2.127 +  }
   2.128 +  
   2.129 +  // Synchronize the state of the two sources.
   2.130 +  alcMakeContextCurrent(masterCtx);
   2.131 +  ALint masterState;
   2.132 +  ALint slaveState;
   2.133 +
   2.134 +  alGetSourcei(master, AL_SOURCE_STATE, &masterState);
   2.135 +  alcMakeContextCurrent(slaveCtx);
   2.136 +  alGetSourcei(slave, AL_SOURCE_STATE, &slaveState);
   2.137 +
   2.138 +  if (masterState != slaveState){
   2.139 +    switch (masterState){
   2.140 +    case AL_INITIAL : alSourceRewind(slave); break;
   2.141 +    case AL_PLAYING : alSourcePlay(slave);   break;
   2.142 +    case AL_PAUSED  : alSourcePause(slave);  break;
   2.143 +    case AL_STOPPED : alSourceStop(slave);   break;
   2.144 +    }
   2.145 +  }
   2.146 +  // Restore whatever context was previously active.
   2.147 +  alcMakeContextCurrent(current);
   2.148 +}
   2.149 +void syncContexts(ALCcontext *master, ALCcontext *slave){
   2.150 +  /* If there aren't sufficient sources in slave to mirror 
   2.151 +     the sources in master, create them. */
   2.152 +  ALCcontext *current = alcGetCurrentContext();
   2.153 +
   2.154 +  UIntMap *masterSourceMap = &(master->SourceMap);
   2.155 +  UIntMap *slaveSourceMap = &(slave->SourceMap);
   2.156 +  ALuint numMasterSources = masterSourceMap->size;
   2.157 +  ALuint numSlaveSources = slaveSourceMap->size;
   2.158 +
   2.159 +  alcMakeContextCurrent(slave);
   2.160 +  if (numSlaveSources < numMasterSources){
   2.161 +    ALuint numMissingSources = numMasterSources - numSlaveSources;
   2.162 +    ALuint newSources[numMissingSources];
   2.163 +    alGenSources(numMissingSources, newSources);
   2.164 +  }
   2.165 +
   2.166 +  /* Now, slave is guaranteed to have at least as many sources
   2.167 +     as master.  Sync each source from master to the corresponding
   2.168 +     source in slave. */
   2.169 +  int i;
   2.170 +  for(i = 0; i < masterSourceMap->size; i++){
   2.171 +    syncSources((ALsource*)masterSourceMap->array[i].value,
   2.172 +		(ALsource*)slaveSourceMap->array[i].value,
   2.173 +		master, slave);
   2.174 +  }
   2.175 +  alcMakeContextCurrent(current);
   2.176 +}
   2.177 +static void addContext(ALCdevice *Device, ALCcontext *context){
   2.178 +  send_data *data = (send_data*)Device->ExtraData;
   2.179 +  // expand array if necessary
   2.180 +  if (data->numContexts >= data->maxContexts){
   2.181 +    ALuint newMaxContexts = data->maxContexts*2 + 1;
   2.182 +    data->contexts = realloc(data->contexts, newMaxContexts*sizeof(context_data));
   2.183 +    data->maxContexts = newMaxContexts;
   2.184 +  }
   2.185 +  // create context_data and add it to the main array
   2.186 +  context_data *ctxData;
   2.187 +  ctxData = (context_data*)calloc(1, sizeof(*ctxData));
   2.188 +  ctxData->renderBuffer = 
   2.189 +    malloc(BytesFromDevFmt(Device->FmtType) * 
   2.190 +	   Device->NumChan * Device->UpdateSize);
   2.191 +  ctxData->ctx = context;
   2.192 +
   2.193 +  data->contexts[data->numContexts] = ctxData;
   2.194 +  data->numContexts++;
   2.195 +}
   2.196 +////////////////////  Context Switching 
   2.197 +
   2.198 +/* A device brings along with it two pieces of state
   2.199 + * which have to be swapped in and out with each context.
   2.200 + */
   2.201 +static void swapInContext(ALCdevice *Device, context_data *ctxData){
   2.202 +  memcpy(Device->ClickRemoval, ctxData->ClickRemoval, sizeof(ALfloat)*MAXCHANNELS);
   2.203 +  memcpy(Device->PendingClicks, ctxData->PendingClicks, sizeof(ALfloat)*MAXCHANNELS);
   2.204 +}
   2.205 +
   2.206 +static void saveContext(ALCdevice *Device, context_data *ctxData){
   2.207 +  memcpy(ctxData->ClickRemoval, Device->ClickRemoval, sizeof(ALfloat)*MAXCHANNELS);
   2.208 +  memcpy(ctxData->PendingClicks, Device->PendingClicks, sizeof(ALfloat)*MAXCHANNELS);
   2.209 +}  
   2.210 +
   2.211 +static ALCcontext **currentContext;
   2.212 +static ALuint currentNumContext;
   2.213 +
   2.214 +/* By default, all contexts are rendered at once for each call to aluMixData.
   2.215 + * This function uses the internals of the ALCdevice struct to temporally 
   2.216 + * cause aluMixData to only render the chosen context.
   2.217 + */
   2.218 +static void limitContext(ALCdevice *Device, ALCcontext *ctx){
   2.219 +  currentContext  = Device->Contexts;
   2.220 +  currentNumContext  = Device->NumContexts;
   2.221 +  Device->Contexts = &ctx;
   2.222 +  Device->NumContexts = 1;
   2.223 +}
   2.224 +
   2.225 +static void unLimitContext(ALCdevice *Device){
   2.226 +  Device->Contexts = currentContext;
   2.227 +  Device->NumContexts = currentNumContext;
   2.228 +}
   2.229 +////////////////////   Main Device Loop
   2.230 +
   2.231 +/* Establish the LWJGL context as the master context, which will
   2.232 + * be synchronized to all the slave contexts
   2.233 + */
   2.234 +static void init(ALCdevice *Device){
   2.235 +  ALCcontext *masterContext = alcGetCurrentContext();
   2.236 +  addContext(Device, masterContext);
   2.237 +}
   2.238 +
   2.239 +
   2.240 +static void renderData(ALCdevice *Device, int samples){
   2.241 +  if(!Device->Connected){return;}
   2.242 +  send_data *data = (send_data*)Device->ExtraData;
   2.243 +  ALCcontext *current = alcGetCurrentContext();
   2.244 +
   2.245 +  ALuint i;
   2.246 +  for (i = 1; i < data->numContexts; i++){
   2.247 +    syncContexts(data->contexts[0]->ctx , data->contexts[i]->ctx);
   2.248 +  }
   2.249 +  
   2.250 +  if ((uint) samples > Device->UpdateSize){
   2.251 +    printf("exceeding internal buffer size; dropping samples\n");
   2.252 +    printf("requested %d; available %d\n", samples, Device->UpdateSize);
   2.253 +    samples = (int) Device->UpdateSize;
   2.254 +  }
   2.255 +
   2.256 +  for (i = 0; i < data->numContexts; i++){
   2.257 +    context_data *ctxData = data->contexts[i];
   2.258 +    ALCcontext *ctx = ctxData->ctx;
   2.259 +    alcMakeContextCurrent(ctx);
   2.260 +    limitContext(Device, ctx);
   2.261 +    swapInContext(Device, ctxData);
   2.262 +    aluMixData(Device, ctxData->renderBuffer, samples);
   2.263 +    saveContext(Device, ctxData);
   2.264 +    unLimitContext(Device);
   2.265 +  }
   2.266 +  alcMakeContextCurrent(current);
   2.267 +}
   2.268 +////////////////////   JNI Methods
   2.269 +
   2.270 +#include "com_aurellem_send_AudioSend.h"
   2.271 +
   2.272 +/*
   2.273 + * Class:     com_aurellem_send_AudioSend
   2.274 + * Method:    nstep
   2.275 + * Signature: (JI)V
   2.276 + */
   2.277 +JNIEXPORT void JNICALL Java_com_aurellem_send_AudioSend_nstep
   2.278 +(JNIEnv *env, jclass clazz, jlong device, jint samples){
   2.279 +  UNUSED(env);UNUSED(clazz);UNUSED(device);
   2.280 +  renderData((ALCdevice*)((intptr_t)device), samples);
   2.281 +}
   2.282 +/*
   2.283 + * Class:     com_aurellem_send_AudioSend
   2.284 + * Method:    ngetSamples
   2.285 + * Signature: (JLjava/nio/ByteBuffer;III)V
   2.286 + */
   2.287 +JNIEXPORT void JNICALL Java_com_aurellem_send_AudioSend_ngetSamples
   2.288 +(JNIEnv *env, jclass clazz, jlong device, jobject buffer, jint position, 
   2.289 + jint samples, jint n){
   2.290 +  UNUSED(clazz);  
   2.291 +
   2.292 +  ALvoid *buffer_address = 
   2.293 +    ((ALbyte *)(((char*)(*env)->GetDirectBufferAddress(env, buffer)) + position));
   2.294 +  ALCdevice *recorder = (ALCdevice*) ((intptr_t)device);
   2.295 +  send_data *data = (send_data*)recorder->ExtraData;
   2.296 +  if ((ALuint)n > data->numContexts){return;}
   2.297 +  memcpy(buffer_address, data->contexts[n]->renderBuffer, 
   2.298 +	 BytesFromDevFmt(recorder->FmtType) * recorder->NumChan * samples);
   2.299 +}
   2.300 +/*
   2.301 + * Class:     com_aurellem_send_AudioSend
   2.302 + * Method:    naddListener
   2.303 + * Signature: (J)V
   2.304 + */
   2.305 +JNIEXPORT void JNICALL Java_com_aurellem_send_AudioSend_naddListener
   2.306 +(JNIEnv *env, jclass clazz, jlong device){
   2.307 +  UNUSED(env); UNUSED(clazz);
   2.308 +  //printf("creating new context via naddListener\n");
   2.309 +  ALCdevice *Device = (ALCdevice*) ((intptr_t)device);
   2.310 +  ALCcontext *new = alcCreateContext(Device, NULL);
   2.311 +  addContext(Device, new);
   2.312 +}
   2.313 +
   2.314 +/*
   2.315 + * Class:     com_aurellem_send_AudioSend
   2.316 + * Method:    nsetNthListener3f
   2.317 + * Signature: (IFFFJI)V
   2.318 + */
   2.319 +JNIEXPORT void JNICALL Java_com_aurellem_send_AudioSend_nsetNthListener3f
   2.320 +  (JNIEnv *env, jclass clazz, jint param, 
   2.321 +   jfloat v1, jfloat v2, jfloat v3, jlong device, jint contextNum){
   2.322 +  UNUSED(env);UNUSED(clazz);
   2.323 +
   2.324 +  ALCdevice *Device = (ALCdevice*) ((intptr_t)device);
   2.325 +  send_data *data = (send_data*)Device->ExtraData;
   2.326 +  
   2.327 +  ALCcontext *current = alcGetCurrentContext();
   2.328 +  if ((ALuint)contextNum > data->numContexts){return;}
   2.329 +  alcMakeContextCurrent(data->contexts[contextNum]->ctx);
   2.330 +  alListener3f(param, v1, v2, v3);
   2.331 +  alcMakeContextCurrent(current);
   2.332 +}
   2.333 +
   2.334 +/*
   2.335 + * Class:     com_aurellem_send_AudioSend
   2.336 + * Method:    nsetNthListenerf
   2.337 + * Signature: (IFJI)V
   2.338 + */
   2.339 +JNIEXPORT void JNICALL Java_com_aurellem_send_AudioSend_nsetNthListenerf
   2.340 +(JNIEnv *env, jclass clazz, jint param, jfloat v1, jlong device, 
   2.341 + jint contextNum){
   2.342 +
   2.343 +  UNUSED(env);UNUSED(clazz);
   2.344 +  
   2.345 +  ALCdevice *Device = (ALCdevice*) ((intptr_t)device);
   2.346 +  send_data *data = (send_data*)Device->ExtraData;
   2.347 +  
   2.348 +  ALCcontext *current = alcGetCurrentContext();
   2.349 +  if ((ALuint)contextNum > data->numContexts){return;}
   2.350 +  alcMakeContextCurrent(data->contexts[contextNum]->ctx);
   2.351 +  alListenerf(param, v1);
   2.352 +  alcMakeContextCurrent(current);
   2.353 +}
   2.354 +/*
   2.355 + * Class:     com_aurellem_send_AudioSend
   2.356 + * Method:    ninitDevice
   2.357 + * Signature: (J)V
   2.358 + */                     
   2.359 +JNIEXPORT void JNICALL Java_com_aurellem_send_AudioSend_ninitDevice
   2.360 +(JNIEnv *env, jclass clazz, jlong device){
   2.361 +  UNUSED(env);UNUSED(clazz);
   2.362 +  ALCdevice *Device = (ALCdevice*) ((intptr_t)device);
   2.363 +  init(Device);
   2.364 +}
   2.365 +
   2.366 +/*
   2.367 + * Class:     com_aurellem_send_AudioSend
   2.368 + * Method:    ngetAudioFormat
   2.369 + * Signature: (J)Ljavax/sound/sampled/AudioFormat;
   2.370 + */
   2.371 +JNIEXPORT jobject JNICALL Java_com_aurellem_send_AudioSend_ngetAudioFormat
   2.372 +(JNIEnv *env, jclass clazz, jlong device){
   2.373 +  UNUSED(clazz);
   2.374 +  jclass AudioFormatClass = 
   2.375 +    (*env)->FindClass(env, "javax/sound/sampled/AudioFormat");
   2.376 +  jmethodID AudioFormatConstructor = 
   2.377 +    (*env)->GetMethodID(env, AudioFormatClass, "<init>", "(FIIZZ)V");
   2.378 +  
   2.379 +  ALCdevice *Device = (ALCdevice*) ((intptr_t)device);
   2.380 +  int isSigned;
   2.381 +  switch (Device->FmtType)
   2.382 +    {
   2.383 +    case DevFmtUByte: 
   2.384 +    case DevFmtUShort: isSigned = 0; break;  
   2.385 +    default : isSigned = 1;   
   2.386 +    }
   2.387 +  float frequency = Device->Frequency;
   2.388 +  int bitsPerFrame = (8 * BytesFromDevFmt(Device->FmtType));
   2.389 +  int channels = Device->NumChan;
   2.390 +  jobject format = (*env)->
   2.391 +    NewObject(
   2.392 +	      env,AudioFormatClass,AudioFormatConstructor,
   2.393 +	      frequency,
   2.394 +	      bitsPerFrame,
   2.395 +	      channels,
   2.396 +	      isSigned,
   2.397 +	      0);
   2.398 +  return format;
   2.399 +}
   2.400 +////////////////////   Device Initialization / Management
   2.401 +
   2.402 +static const ALCchar sendDevice[] = "Multiple Audio Send";
   2.403 +
   2.404 +static ALCboolean send_open_playback(ALCdevice *device, 
   2.405 + const ALCchar *deviceName)
   2.406 +{
   2.407 +  send_data *data;
   2.408 +  // stop any buffering for stdout, so that I can 
   2.409 +  // see the printf statements in my terminal immediately
   2.410 +  setbuf(stdout, NULL);
   2.411 +
   2.412 +  if(!deviceName)
   2.413 +    deviceName = sendDevice;
   2.414 +  else if(strcmp(deviceName, sendDevice) != 0)
   2.415 +    return ALC_FALSE;
   2.416 +  data = (send_data*)calloc(1, sizeof(*data));
   2.417 +  device->szDeviceName = strdup(deviceName);
   2.418 +  device->ExtraData = data;
   2.419 +  return ALC_TRUE;
   2.420 +}
   2.421 +
   2.422 +static void send_close_playback(ALCdevice *device)
   2.423 +{
   2.424 +  send_data *data = (send_data*)device->ExtraData;
   2.425 +  alcMakeContextCurrent(NULL);
   2.426 +  ALuint i;
   2.427 +  // Destroy all slave contexts. LWJGL will take care of 
   2.428 +  // its own context.
   2.429 +  for (i = 1; i < data->numContexts; i++){
   2.430 +    context_data *ctxData = data->contexts[i];
   2.431 +    alcDestroyContext(ctxData->ctx);
   2.432 +    free(ctxData->renderBuffer);
   2.433 +    free(ctxData);
   2.434 +  }
   2.435 +  free(data);
   2.436 +  device->ExtraData = NULL;
   2.437 +}
   2.438 +
   2.439 +static ALCboolean send_reset_playback(ALCdevice *device)
   2.440 +{
   2.441 +  SetDefaultWFXChannelOrder(device);
   2.442 +  return ALC_TRUE;
   2.443 +}
   2.444 +
   2.445 +static void send_stop_playback(ALCdevice *Device){
   2.446 +  UNUSED(Device);
   2.447 +}
   2.448 +
   2.449 +static const BackendFuncs send_funcs = {
   2.450 +  send_open_playback,
   2.451 +  send_close_playback,
   2.452 +  send_reset_playback,
   2.453 +  send_stop_playback,
   2.454 +  NULL,
   2.455 +  NULL,  /* These would be filled with functions to    */
   2.456 +  NULL,  /* handle capturing audio if we we into that  */
   2.457 +  NULL,  /* sort of thing...                           */
   2.458 +  NULL,
   2.459 +  NULL
   2.460 +};
   2.461 +
   2.462 +ALCboolean alc_send_init(BackendFuncs *func_list){
   2.463 +  *func_list = send_funcs;
   2.464 +  return ALC_TRUE;
   2.465 +}
   2.466 +
   2.467 +void alc_send_deinit(void){}
   2.468 +
   2.469 +void alc_send_probe(enum DevProbe type)
   2.470 +{
   2.471 +  switch(type)
   2.472 +    {
   2.473 +    case DEVICE_PROBE:
   2.474 +      AppendDeviceList(sendDevice);
   2.475 +      break;
   2.476 +    case ALL_DEVICE_PROBE:
   2.477 +      AppendAllDeviceList(sendDevice);
   2.478 +      break;
   2.479 +    case CAPTURE_DEVICE_PROBE:
   2.480 +      break;
   2.481 +    }
   2.482 +}