winealsa: Add IDsCaptureDriverBuffer stub.

dlls/winealsa.drv/dscapture.c

@@ -59,6 +59,7 @@
 WINE_DEFAULT_DEBUG_CHANNEL(dsalsa);
 
 typedef struct IDsCaptureDriverImpl IDsCaptureDriverImpl;
+typedef struct IDsCaptureDriverBufferImpl IDsCaptureDriverBufferImpl;
 
 struct IDsCaptureDriverImpl
 {
@@ -67,9 +68,171 @@ struct IDsCaptureDriverImpl
     LONG ref;
 
     /* IDsCaptureDriverImpl fields */
+    IDsCaptureDriverBufferImpl* capture_buffer;
     UINT wDevID;
 };
 
+struct IDsCaptureDriverBufferImpl
+{
+    const IDsCaptureDriverBufferVtbl *lpVtbl;
+    LONG ref;
+    IDsCaptureDriverImpl* drv;
+
+    CRITICAL_SECTION pcm_crst;
+    LPBYTE mmap_buffer, presented_buffer;
+    DWORD mmap_buflen_bytes, play_looping, mmap_ofs_bytes;
+};
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_QueryInterface(PIDSCDRIVERBUFFER iface, REFIID riid, LPVOID *ppobj)
+{
+    /* IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface; */
+    FIXME("(): stub!\n");
+    return DSERR_UNSUPPORTED;
+}
+
+static ULONG WINAPI IDsCaptureDriverBufferImpl_AddRef(PIDSCDRIVERBUFFER iface)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%u)\n",This, refCount - 1);
+
+    return refCount;
+}
+
+static ULONG WINAPI IDsCaptureDriverBufferImpl_Release(PIDSCDRIVERBUFFER iface)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%u)\n",This, refCount + 1);
+
+    if (refCount)
+        return refCount;
+
+    TRACE("mmap buffer %p destroyed\n", This->mmap_buffer);
+
+    This->drv->capture_buffer = NULL;
+    This->pcm_crst.DebugInfo->Spare[0] = 0;
+    DeleteCriticalSection(&This->pcm_crst);
+
+    HeapFree(GetProcessHeap(), 0, This->presented_buffer);
+    HeapFree(GetProcessHeap(), 0, This);
+    return 0;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_Lock(PIDSCDRIVERBUFFER iface, LPVOID*ppvAudio1,LPDWORD pdwLen1,LPVOID*ppvAudio2,LPDWORD pdwLen2, DWORD dwWritePosition,DWORD dwWriteLen, DWORD dwFlags)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    TRACE("(%p,%p,%p,%p,%p,%d,%d,0x%08x)\n", This, ppvAudio1, pdwLen1, ppvAudio2, pdwLen2, dwWritePosition, dwWriteLen, dwFlags);
+
+    if (ppvAudio1)
+        *ppvAudio1 = (LPBYTE)This->presented_buffer + dwWritePosition;
+
+    if (dwWritePosition + dwWriteLen < This->mmap_buflen_bytes) {
+        if (pdwLen1)
+            *pdwLen1 = dwWriteLen;
+        if (ppvAudio2)
+            *ppvAudio2 = 0;
+        if (pdwLen2)
+            *pdwLen2 = 0;
+    } else {
+        if (pdwLen1)
+            *pdwLen1 = This->mmap_buflen_bytes - dwWritePosition;
+        if (ppvAudio2)
+            *ppvAudio2 = This->presented_buffer;
+        if (pdwLen2)
+            *pdwLen2 = dwWriteLen - (This->mmap_buflen_bytes - dwWritePosition);
+    }
+    return DS_OK;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_Unlock(PIDSCDRIVERBUFFER iface, LPVOID pvAudio1,DWORD dwLen1, LPVOID pvAudio2,DWORD dwLen2)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    TRACE("(%p,%p,%d,%p,%d)\n",This,pvAudio1,dwLen1,pvAudio2,dwLen2);
+    return DS_OK;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_SetFormat(PIDSCDRIVERBUFFER iface, LPWAVEFORMATEX pwfx)
+{
+    FIXME("stub!\n");
+    return DSERR_BADFORMAT;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetPosition(PIDSCDRIVERBUFFER iface, LPDWORD lpdwCappos, LPDWORD lpdwReadpos)
+{
+    FIXME("stub!\n");
+    return DSERR_GENERIC;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_GetStatus(PIDSCDRIVERBUFFER iface, LPDWORD lpdwStatus)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    snd_pcm_state_t state;
+    TRACE("(%p,%p)\n",iface,lpdwStatus);
+
+    state = 0;
+    switch (state)
+    {
+    case SND_PCM_STATE_XRUN:
+    case SND_PCM_STATE_SUSPENDED:
+    case SND_PCM_STATE_RUNNING:
+        *lpdwStatus = DSCBSTATUS_CAPTURING | (This->play_looping ? DSCBSTATUS_LOOPING : 0);
+        break;
+    default:
+        *lpdwStatus = 0;
+        break;
+    }
+
+    TRACE("State: %d, flags: 0x%08x\n", state, *lpdwStatus);
+    return DS_OK;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_Start(PIDSCDRIVERBUFFER iface, DWORD dwFlags)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    TRACE("(%p,%x)\n",iface,dwFlags);
+
+    /* **** */
+    EnterCriticalSection(&This->pcm_crst);
+    This->play_looping = !!(dwFlags & DSCBSTART_LOOPING);
+    if (!This->play_looping)
+        /* Not well supported because of the difference in ALSA size and DSOUND's notion of size
+         * what it does right now is fill the buffer once.. ALSA size */
+        FIXME("Non-looping buffers are not properly supported!\n");
+    /* **** */
+    LeaveCriticalSection(&This->pcm_crst);
+    return DS_OK;
+}
+
+static HRESULT WINAPI IDsCaptureDriverBufferImpl_Stop(PIDSCDRIVERBUFFER iface)
+{
+    IDsCaptureDriverBufferImpl *This = (IDsCaptureDriverBufferImpl *)iface;
+    TRACE("(%p)\n",iface);
+
+    /* **** */
+    EnterCriticalSection(&This->pcm_crst);
+    This->play_looping = FALSE;
+    /* **** */
+    LeaveCriticalSection(&This->pcm_crst);
+    return DS_OK;
+}
+
+static const IDsCaptureDriverBufferVtbl dsdbvt =
+{
+    IDsCaptureDriverBufferImpl_QueryInterface,
+    IDsCaptureDriverBufferImpl_AddRef,
+    IDsCaptureDriverBufferImpl_Release,
+    IDsCaptureDriverBufferImpl_Lock,
+    IDsCaptureDriverBufferImpl_Unlock,
+    IDsCaptureDriverBufferImpl_SetFormat,
+    IDsCaptureDriverBufferImpl_GetPosition,
+    IDsCaptureDriverBufferImpl_GetStatus,
+    IDsCaptureDriverBufferImpl_Start,
+    IDsCaptureDriverBufferImpl_Stop
+};
+
 static HRESULT WINAPI IDsCaptureDriverImpl_QueryInterface(PIDSCDRIVER iface, REFIID riid, LPVOID *ppobj)
 {
     /* IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface; */
@@ -188,8 +351,52 @@ static HRESULT WINAPI IDsCaptureDriverImpl_CreateCaptureBuffer(PIDSCDRIVER iface
 						      LPBYTE *ppbBuffer,
 						      LPVOID *ppvObj)
 {
-    FIXME("stub!\n");
-    return DSERR_GENERIC;
+{
+    IDsCaptureDriverImpl *This = (IDsCaptureDriverImpl *)iface;
+    IDsCaptureDriverBufferImpl** ippdsdb = (IDsCaptureDriverBufferImpl**)ppvObj;
+    HRESULT err;
+
+    TRACE("(%p,%p,%x,%x)\n",iface,pwfx,dwFlags,dwCardAddress);
+
+    if (This->capture_buffer)
+        return DSERR_ALLOCATED;
+
+    This->capture_buffer = *ippdsdb = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IDsCaptureDriverBufferImpl));
+    if (*ippdsdb == NULL)
+        return DSERR_OUTOFMEMORY;
+
+    (*ippdsdb)->presented_buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *pdwcbBufferSize);
+    if (!(*ippdsdb)->presented_buffer)
+    {
+        HeapFree(GetProcessHeap(), 0, (*ippdsdb)->presented_buffer);
+        return DSERR_OUTOFMEMORY;
+    }
+    (*ippdsdb)->lpVtbl = &dsdbvt;
+    (*ippdsdb)->ref = 1;
+    (*ippdsdb)->drv = This;
+    (*ippdsdb)->mmap_buflen_bytes = *pdwcbBufferSize;
+    InitializeCriticalSection(&(*ippdsdb)->pcm_crst);
+    (*ippdsdb)->pcm_crst.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ALSA_DSCAPTURE.pcm_crst");
+
+    /* SetFormat initialises pcm */
+    err = IDsDriverBuffer_SetFormat((IDsDriverBuffer*)*ppvObj, pwfx);
+    if (FAILED(err))
+    {
+        WARN("Error occurred: %08x\n", err);
+        goto err;
+    }
+    *ppbBuffer = (*ippdsdb)->presented_buffer;
+
+    /* buffer is ready to go */
+    TRACE("buffer created at %p\n", *ippdsdb);
+    return err;
+
+    err:
+    HeapFree(GetProcessHeap(), 0, (*ippdsdb)->presented_buffer);
+    HeapFree(GetProcessHeap(), 0, *ippdsdb);
+    *ippdsdb = NULL;
+    return err;
+}
 }
 
 static const IDsCaptureDriverVtbl dscdvt =