static void DSOUND_ReleaseDevice(DirectSoundDevice *device)
{
if(device->client){
IAudioClient_Release(device->client);
device->client = NULL;
}
if(device->render){
IAudioRenderClient_Release(device->render);
device->render = NULL;
}
if(device->volume){
IAudioStreamVolume_Release(device->volume);
device->volume = NULL;
}
if (device->pad) {
device->playpos += device->pad;
device->playpos %= device->buflen;
device->pad = 0;
}
}
HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave)
{
UINT prebuf_frames;
REFERENCE_TIME prebuf_rt;
HRESULT hres;
TRACE("(%p, %d)\n", device, forcewave);
if(device->client){
IAudioClient_Release(device->client);
device->client = NULL;
}
if(device->render){
IAudioRenderClient_Release(device->render);
device->render = NULL;
}
if(device->clock){
IAudioClock_Release(device->clock);
device->clock = NULL;
}
if(device->volume){
IAudioStreamVolume_Release(device->volume);
device->volume = NULL;
}
hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient,
CLSCTX_INPROC_SERVER, NULL, (void **)&device->client);
if(FAILED(hres)){
WARN("Activate failed: %08x\n", hres);
return hres;
}
prebuf_frames = device->prebuf * DSOUND_fraglen(device->pwfx->nSamplesPerSec, device->pwfx->nBlockAlign) / device->pwfx->nBlockAlign;
prebuf_rt = (10000000 * (UINT64)prebuf_frames) / device->pwfx->nSamplesPerSec;
hres = IAudioClient_Initialize(device->client,
AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST,
prebuf_rt, 0, device->pwfx, NULL);
if(FAILED(hres)){
IAudioClient_Release(device->client);
device->client = NULL;
WARN("Initialize failed: %08x\n", hres);
return hres;
}
hres = IAudioClient_GetService(device->client, &IID_IAudioRenderClient,
(void**)&device->render);
if(FAILED(hres)){
IAudioClient_Release(device->client);
device->client = NULL;
WARN("GetService failed: %08x\n", hres);
return hres;
}
hres = IAudioClient_GetService(device->client, &IID_IAudioClock,
(void**)&device->clock);
if(FAILED(hres)){
IAudioClient_Release(device->client);
IAudioRenderClient_Release(device->render);
device->client = NULL;
device->render = NULL;
WARN("GetService failed: %08x\n", hres);
return hres;
}
hres = IAudioClient_GetService(device->client, &IID_IAudioStreamVolume,
(void**)&device->volume);
if(FAILED(hres)){
IAudioClient_Release(device->client);
IAudioRenderClient_Release(device->render);
IAudioClock_Release(device->clock);
device->client = NULL;
device->render = NULL;
device->clock = NULL;
WARN("GetService failed: %08x\n", hres);
return hres;
}
return S_OK;
}
static void test_padding(void)
{
HRESULT hr;
IAudioClient *ac;
IAudioRenderClient *arc;
WAVEFORMATEX *pwfx;
REFERENCE_TIME minp, defp;
BYTE *buf;
UINT32 psize, pad, written;
hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
NULL, (void**)&ac);
ok(hr == S_OK, "Activation failed with %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_GetMixFormat(ac, &pwfx);
ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED,
0, 5000000, 0, pwfx, NULL);
ok(hr == S_OK, "Initialize failed: %08x\n", hr);
hr = IAudioClient_GetDevicePeriod(ac, &defp, &minp);
ok(hr == S_OK, "GetDevicePeriod failed: %08x\n", hr);
ok(defp != 0, "Default period is 0\n");
ok(minp != 0, "Minimum period is 0\n");
ok(minp <= defp, "Mininum period is greater than default period\n");
hr = IAudioClient_GetService(ac, &IID_IAudioRenderClient, (void**)&arc);
ok(hr == S_OK, "GetService failed: %08x\n", hr);
psize = (defp / 10000000.) * pwfx->nSamplesPerSec * pwfx->nBlockAlign;
written = 0;
hr = IAudioClient_GetCurrentPadding(ac, &pad);
ok(hr == S_OK, "GetCurrentPadding failed: %08x\n", hr);
ok(pad == written, "GetCurrentPadding returned %u, should be %u\n", pad, written);
hr = IAudioRenderClient_GetBuffer(arc, psize, &buf);
ok(hr == S_OK, "GetBuffer failed: %08x\n", hr);
ok(buf != NULL, "NULL buffer returned\n");
hr = IAudioRenderClient_ReleaseBuffer(arc, psize,
AUDCLNT_BUFFERFLAGS_SILENT);
ok(hr == S_OK, "ReleaseBuffer failed: %08x\n", hr);
written += psize;
hr = IAudioClient_GetCurrentPadding(ac, &pad);
ok(hr == S_OK, "GetCurrentPadding failed: %08x\n", hr);
ok(pad == written, "GetCurrentPadding returned %u, should be %u\n", pad, written);
psize = (minp / 10000000.) * pwfx->nSamplesPerSec * pwfx->nBlockAlign;
hr = IAudioRenderClient_GetBuffer(arc, psize, &buf);
ok(hr == S_OK, "GetBuffer failed: %08x\n", hr);
ok(buf != NULL, "NULL buffer returned\n");
hr = IAudioRenderClient_ReleaseBuffer(arc, psize,
AUDCLNT_BUFFERFLAGS_SILENT);
ok(hr == S_OK, "ReleaseBuffer failed: %08x\n", hr);
written += psize;
hr = IAudioClient_GetCurrentPadding(ac, &pad);
ok(hr == S_OK, "GetCurrentPadding failed: %08x\n", hr);
ok(pad == written, "GetCurrentPadding returned %u, should be %u\n", pad, written);
/* overfull buffer. requested 1/2s buffer size, so try
* to get a 1/2s buffer, which should fail */
psize = pwfx->nSamplesPerSec / 2.;
hr = IAudioRenderClient_GetBuffer(arc, psize, &buf);
ok(hr == AUDCLNT_E_BUFFER_TOO_LARGE, "GetBuffer gave wrong error: %08x\n", hr);
hr = IAudioRenderClient_ReleaseBuffer(arc, psize, 0);
ok(hr == AUDCLNT_E_OUT_OF_ORDER, "ReleaseBuffer gave wrong error: %08x\n", hr);
hr = IAudioClient_GetCurrentPadding(ac, &pad);
ok(hr == S_OK, "GetCurrentPadding failed: %08x\n", hr);
ok(pad == written, "GetCurrentPadding returned %u, should be %u\n", pad, written);
CoTaskMemFree(pwfx);
IAudioRenderClient_Release(arc);
IAudioClient_Release(ac);
}
static void test_references(void)
{
IAudioClient *ac;
IAudioRenderClient *rc;
ISimpleAudioVolume *sav;
IAudioStreamVolume *asv;
IAudioClock *acl;
WAVEFORMATEX *pwfx;
HRESULT hr;
ULONG ref;
/* IAudioRenderClient */
hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
NULL, (void**)&ac);
ok(hr == S_OK, "Activation failed with %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_GetMixFormat(ac, &pwfx);
ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000,
0, pwfx, NULL);
ok(hr == S_OK, "Initialize failed: %08x\n", hr);
CoTaskMemFree(pwfx);
hr = IAudioClient_GetService(ac, &IID_IAudioRenderClient, (void**)&rc);
ok(hr == S_OK, "GetService failed: %08x\n", hr);
IAudioRenderClient_AddRef(rc);
ref = IAudioRenderClient_Release(rc);
ok(ref != 0, "RenderClient_Release gave wrong refcount: %u\n", ref);
ref = IAudioClient_Release(ac);
ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref);
ref = IAudioRenderClient_Release(rc);
ok(ref == 0, "RenderClient_Release gave wrong refcount: %u\n", ref);
/* ISimpleAudioVolume */
hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
NULL, (void**)&ac);
ok(hr == S_OK, "Activation failed with %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_GetMixFormat(ac, &pwfx);
ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr);
hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000,
0, pwfx, NULL);
ok(hr == S_OK, "Initialize failed: %08x\n", hr);
CoTaskMemFree(pwfx);
hr = IAudioClient_GetService(ac, &IID_ISimpleAudioVolume, (void**)&sav);
ok(hr == S_OK, "GetService failed: %08x\n", hr);
ISimpleAudioVolume_AddRef(sav);
ref = ISimpleAudioVolume_Release(sav);
ok(ref != 0, "SimpleAudioVolume_Release gave wrong refcount: %u\n", ref);
ref = IAudioClient_Release(ac);
ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref);
ref = ISimpleAudioVolume_Release(sav);
ok(ref == 0, "SimpleAudioVolume_Release gave wrong refcount: %u\n", ref);
/* IAudioClock */
hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
NULL, (void**)&ac);
ok(hr == S_OK, "Activation failed with %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_GetMixFormat(ac, &pwfx);
ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr);
hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000,
0, pwfx, NULL);
ok(hr == S_OK, "Initialize failed: %08x\n", hr);
CoTaskMemFree(pwfx);
hr = IAudioClient_GetService(ac, &IID_IAudioClock, (void**)&acl);
ok(hr == S_OK, "GetService failed: %08x\n", hr);
IAudioClock_AddRef(acl);
ref = IAudioClock_Release(acl);
ok(ref != 0, "AudioClock_Release gave wrong refcount: %u\n", ref);
ref = IAudioClient_Release(ac);
ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref);
ref = IAudioClock_Release(acl);
ok(ref == 0, "AudioClock_Release gave wrong refcount: %u\n", ref);
/* IAudioStreamVolume */
hr = IMMDevice_Activate(dev, &IID_IAudioClient, CLSCTX_INPROC_SERVER,
NULL, (void**)&ac);
ok(hr == S_OK, "Activation failed with %08x\n", hr);
if(hr != S_OK)
return;
hr = IAudioClient_GetMixFormat(ac, &pwfx);
ok(hr == S_OK, "GetMixFormat failed: %08x\n", hr);
hr = IAudioClient_Initialize(ac, AUDCLNT_SHAREMODE_SHARED, 0, 5000000,
0, pwfx, NULL);
ok(hr == S_OK, "Initialize failed: %08x\n", hr);
hr = IAudioClient_GetService(ac, &IID_IAudioStreamVolume, (void**)&asv);
ok(hr == S_OK, "GetService failed: %08x\n", hr);
IAudioStreamVolume_AddRef(asv);
ref = IAudioStreamVolume_Release(asv);
ok(ref != 0, "AudioStreamVolume_Release gave wrong refcount: %u\n", ref);
ref = IAudioClient_Release(ac);
ok(ref != 0, "Client_Release gave wrong refcount: %u\n", ref);
ref = IAudioStreamVolume_Release(asv);
ok(ref == 0, "AudioStreamVolume_Release gave wrong refcount: %u\n", ref);
}
HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave)
{
HRESULT hres;
REFERENCE_TIME period;
UINT32 frames;
DWORD period_ms;
IAudioClient *client = NULL;
IAudioRenderClient *render = NULL;
IAudioStreamVolume *volume = NULL;
DWORD fraglen;
WAVEFORMATEX *wfx = NULL;
DWORD oldspeakerconfig = device->speaker_config;
TRACE("(%p, %d)\n", device, forcewave);
hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient,
CLSCTX_INPROC_SERVER, NULL, (void **)&client);
if(FAILED(hres)){
WARN("Activate failed: %08x\n", hres);
return hres;
}
hres = DSOUND_WaveFormat(device, client, forcewave, &wfx);
if (FAILED(hres)) {
IAudioClient_Release(client);
return hres;
}
hres = IAudioClient_Initialize(client,
AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST |
AUDCLNT_STREAMFLAGS_EVENTCALLBACK, 800000, 0, wfx, NULL);
if(FAILED(hres)){
IAudioClient_Release(client);
ERR("Initialize failed: %08x\n", hres);
return hres;
}
IAudioClient_SetEventHandle(client, device->sleepev);
hres = IAudioClient_GetService(client, &IID_IAudioRenderClient, (void**)&render);
if(FAILED(hres))
goto err_service;
hres = IAudioClient_GetService(client, &IID_IAudioStreamVolume, (void**)&volume);
if(FAILED(hres))
goto err_service;
/* Now kick off the timer so the event fires periodically */
hres = IAudioClient_Start(client);
if (FAILED(hres)) {
WARN("Start failed with %08x\n", hres);
goto err;
}
hres = IAudioClient_GetStreamLatency(client, &period);
if (FAILED(hres)) {
WARN("GetStreamLatency failed with %08x\n", hres);
goto err;
}
hres = IAudioClient_GetBufferSize(client, &frames);
if (FAILED(hres)) {
WARN("GetBufferSize failed with %08x\n", hres);
goto err;
}
period_ms = (period + 9999) / 10000;
fraglen = MulDiv(wfx->nSamplesPerSec, period, 10000000) * wfx->nBlockAlign;
TRACE("period %u ms fraglen %u buflen %u\n", period_ms, fraglen, frames * wfx->nBlockAlign);
hres = DSOUND_PrimaryOpen(device, wfx, frames, forcewave);
if(FAILED(hres))
goto err;
DSOUND_ReleaseDevice(device);
device->client = client;
device->render = render;
device->volume = volume;
device->fraglen = fraglen;
device->aclen = frames * wfx->nBlockAlign;
if (period_ms < 3)
device->sleeptime = 5;
else
device->sleeptime = period_ms * 5 / 2;
return S_OK;
err_service:
WARN("GetService failed: %08x\n", hres);
err:
device->speaker_config = oldspeakerconfig;
DSOUND_ParseSpeakerConfig(device);
if (volume)
IAudioStreamVolume_Release(volume);
if (render)
IAudioRenderClient_Release(render);
IAudioClient_Release(client);
HeapFree(GetProcessHeap(), 0, wfx);
return hres;
}
HRESULT DSOUND_ReopenDevice(DirectSoundDevice *device, BOOL forcewave)
{
UINT prebuf_frames;
REFERENCE_TIME prebuf_rt;
WAVEFORMATEX *wfx = NULL;
HRESULT hres;
REFERENCE_TIME period;
DWORD period_ms;
TRACE("(%p, %d)\n", device, forcewave);
if(device->client){
IAudioClient_Release(device->client);
device->client = NULL;
}
if(device->render){
IAudioRenderClient_Release(device->render);
device->render = NULL;
}
if(device->clock){
IAudioClock_Release(device->clock);
device->clock = NULL;
}
if(device->volume){
IAudioStreamVolume_Release(device->volume);
device->volume = NULL;
}
hres = IMMDevice_Activate(device->mmdevice, &IID_IAudioClient,
CLSCTX_INPROC_SERVER, NULL, (void **)&device->client);
if(FAILED(hres)) {
WARN("Activate failed: %08x\n", hres);
return hres;
}
hres = DSOUND_WaveFormat(device, device->client, forcewave, &wfx);
if (FAILED(hres)) {
IAudioClient_Release(device->client);
device->client = NULL;
return hres;
}
HeapFree(GetProcessHeap(), 0, device->pwfx);
device->pwfx = wfx;
prebuf_frames = device->prebuf * DSOUND_fraglen(device) / device->pwfx->nBlockAlign;
prebuf_rt = (10000000 * (UINT64)prebuf_frames) / device->pwfx->nSamplesPerSec;
hres = IAudioClient_Initialize(device->client,
AUDCLNT_SHAREMODE_SHARED, AUDCLNT_STREAMFLAGS_NOPERSIST |
AUDCLNT_STREAMFLAGS_EVENTCALLBACK, prebuf_rt, 0, device->pwfx, NULL);
if(FAILED(hres)){
IAudioClient_Release(device->client);
device->client = NULL;
WARN("Initialize failed: %08x\n", hres);
return hres;
}
IAudioClient_SetEventHandle(device->client, device->sleepev);
hres = IAudioClient_GetService(device->client, &IID_IAudioRenderClient,
(void**)&device->render);
if(FAILED(hres)){
IAudioClient_Release(device->client);
device->client = NULL;
WARN("GetService failed: %08x\n", hres);
return hres;
}
hres = IAudioClient_GetService(device->client, &IID_IAudioClock,
(void**)&device->clock);
if(FAILED(hres)){
IAudioClient_Release(device->client);
IAudioRenderClient_Release(device->render);
device->client = NULL;
device->render = NULL;
WARN("GetService failed: %08x\n", hres);
return hres;
}
hres = IAudioClient_GetService(device->client, &IID_IAudioStreamVolume,
(void**)&device->volume);
if(FAILED(hres)){
IAudioClient_Release(device->client);
IAudioRenderClient_Release(device->render);
IAudioClock_Release(device->clock);
device->client = NULL;
device->render = NULL;
device->clock = NULL;
WARN("GetService failed: %08x\n", hres);
return hres;
}
/* Now kick off the timer so the event fires periodically */
hres = IAudioClient_Start(device->client);
if (FAILED(hres))
WARN("starting failed with %08x\n", hres);
hres = IAudioClient_GetStreamLatency(device->client, &period);
if (FAILED(hres)) {
WARN("GetStreamLatency failed with %08x\n", hres);
period_ms = 10;
} else
period_ms = (period + 9999) / 10000;
TRACE("period %u ms fraglen %u prebuf %u\n", period_ms, device->fraglen, device->prebuf);
if (period_ms < 3)
device->sleeptime = 5;
else
device->sleeptime = period_ms * 5 / 2;
return S_OK;
}
JNIEXPORT void JNICALL
Java_org_jitsi_impl_neomedia_jmfext_media_protocol_wasapi_WASAPI_IAudioRenderClient_1Release
(JNIEnv *env, jclass clazz, jlong thiz)
{
IAudioRenderClient_Release((IAudioRenderClient *) (intptr_t) thiz);
}
static DWORD CALLBACK MMDevApiMsgProc(void *ptr)
{
ThreadRequest *req = ptr;
IMMDeviceEnumerator *Enumerator;
ALuint deviceCount = 0;
MMDevApiData *data;
ALCdevice *device;
HRESULT hr, cohr;
MSG msg;
TRACE("Starting message thread\n");
cohr = CoInitialize(NULL);
if(FAILED(cohr))
{
WARN("Failed to initialize COM: 0x%08lx\n", cohr);
req->result = cohr;
SetEvent(req->FinishedEvt);
return 0;
}
hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
if(FAILED(hr))
{
WARN("Failed to create IMMDeviceEnumerator instance: 0x%08lx\n", hr);
CoUninitialize();
req->result = hr;
SetEvent(req->FinishedEvt);
return 0;
}
Enumerator = ptr;
IMMDeviceEnumerator_Release(Enumerator);
Enumerator = NULL;
CoUninitialize();
req->result = S_OK;
SetEvent(req->FinishedEvt);
TRACE("Starting message loop\n");
while(GetMessage(&msg, NULL, 0, 0))
{
TRACE("Got message %u\n", msg.message);
switch(msg.message)
{
case WM_USER_OpenDevice:
req = (ThreadRequest*)msg.wParam;
device = (ALCdevice*)msg.lParam;
data = device->ExtraData;
hr = cohr = S_OK;
if(++deviceCount == 1)
hr = cohr = CoInitialize(NULL);
if(SUCCEEDED(hr))
hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
if(SUCCEEDED(hr))
{
Enumerator = ptr;
if(!data->devid)
hr = IMMDeviceEnumerator_GetDefaultAudioEndpoint(Enumerator, eRender, eMultimedia, &data->mmdev);
else
hr = IMMDeviceEnumerator_GetDevice(Enumerator, data->devid, &data->mmdev);
IMMDeviceEnumerator_Release(Enumerator);
Enumerator = NULL;
}
if(SUCCEEDED(hr))
hr = IMMDevice_Activate(data->mmdev, &IID_IAudioClient, CLSCTX_INPROC_SERVER, NULL, &ptr);
if(SUCCEEDED(hr))
{
data->client = ptr;
device->DeviceName = get_device_name(data->mmdev);
}
if(FAILED(hr))
{
if(data->mmdev)
IMMDevice_Release(data->mmdev);
data->mmdev = NULL;
if(--deviceCount == 0 && SUCCEEDED(cohr))
CoUninitialize();
}
req->result = hr;
SetEvent(req->FinishedEvt);
continue;
case WM_USER_ResetDevice:
req = (ThreadRequest*)msg.wParam;
device = (ALCdevice*)msg.lParam;
req->result = DoReset(device);
SetEvent(req->FinishedEvt);
continue;
case WM_USER_StartDevice:
req = (ThreadRequest*)msg.wParam;
device = (ALCdevice*)msg.lParam;
data = device->ExtraData;
ResetEvent(data->NotifyEvent);
hr = IAudioClient_SetEventHandle(data->client, data->NotifyEvent);
if(FAILED(hr))
ERR("Failed to set event handle: 0x%08lx\n", hr);
else
{
hr = IAudioClient_Start(data->client);
if(FAILED(hr))
ERR("Failed to start audio client: 0x%08lx\n", hr);
}
if(SUCCEEDED(hr))
hr = IAudioClient_GetService(data->client, &IID_IAudioRenderClient, &ptr);
if(SUCCEEDED(hr))
{
data->render = ptr;
data->thread = StartThread(MMDevApiProc, device);
if(!data->thread)
{
if(data->render)
IAudioRenderClient_Release(data->render);
data->render = NULL;
IAudioClient_Stop(data->client);
ERR("Failed to start thread\n");
hr = E_FAIL;
}
}
req->result = hr;
SetEvent(req->FinishedEvt);
continue;
case WM_USER_StopDevice:
req = (ThreadRequest*)msg.wParam;
device = (ALCdevice*)msg.lParam;
data = device->ExtraData;
if(data->thread)
{
data->killNow = 1;
StopThread(data->thread);
data->thread = NULL;
data->killNow = 0;
IAudioRenderClient_Release(data->render);
data->render = NULL;
IAudioClient_Stop(data->client);
}
req->result = S_OK;
SetEvent(req->FinishedEvt);
continue;
case WM_USER_CloseDevice:
req = (ThreadRequest*)msg.wParam;
device = (ALCdevice*)msg.lParam;
data = device->ExtraData;
IAudioClient_Release(data->client);
data->client = NULL;
IMMDevice_Release(data->mmdev);
data->mmdev = NULL;
if(--deviceCount == 0)
CoUninitialize();
req->result = S_OK;
SetEvent(req->FinishedEvt);
continue;
case WM_USER_Enumerate:
req = (ThreadRequest*)msg.wParam;
hr = cohr = S_OK;
if(++deviceCount == 1)
hr = cohr = CoInitialize(NULL);
if(SUCCEEDED(hr))
hr = CoCreateInstance(&CLSID_MMDeviceEnumerator, NULL, CLSCTX_INPROC_SERVER, &IID_IMMDeviceEnumerator, &ptr);
if(SUCCEEDED(hr))
{
EDataFlow flowdir;
DevMap **devlist;
ALuint *numdevs;
ALuint i;
Enumerator = ptr;
if(msg.lParam == CAPTURE_DEVICE_PROBE)
{
flowdir = eCapture;
devlist = &CaptureDeviceList;
numdevs = &NumCaptureDevices;
}
else
{
flowdir = eRender;
devlist = &PlaybackDeviceList;
numdevs = &NumPlaybackDevices;
}
for(i = 0;i < *numdevs;i++)
{
free((*devlist)[i].name);
free((*devlist)[i].devid);
}
free(*devlist);
*devlist = NULL;
*numdevs = 0;
*devlist = ProbeDevices(Enumerator, flowdir, numdevs);
IMMDeviceEnumerator_Release(Enumerator);
Enumerator = NULL;
}
if(--deviceCount == 0 && SUCCEEDED(cohr))
CoUninitialize();
req->result = S_OK;
SetEvent(req->FinishedEvt);
continue;
default:
ERR("Unexpected message: %u\n", msg.message);
continue;
}
}
TRACE("Message loop finished\n");
return 0;
}