mirror of
https://github.com/reactos/reactos.git
synced 2024-10-31 03:48:17 +00:00
25445ea35f
svn path=/branches/ntvdm/; revision=60692
821 lines
23 KiB
C
821 lines
23 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Configuration of network devices
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* FILE: dll/directx/dsound_new/capturebuffer.c
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* PURPOSE: IDirectSoundCaptureBuffer8 implementation
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*
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* PROGRAMMERS: Johannes Anderwald (johannes.anderwald@reactos.org)
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*/
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#include "precomp.h"
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const GUID KSINTERFACESETID_Standard = {0x1A8766A0L, 0x62CE, 0x11CF, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
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const GUID KSMEDIUMSETID_Standard = {0x4747B320L, 0x62CE, 0x11CF, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
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const GUID KSDATAFORMAT_TYPE_AUDIO = {0x73647561L, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71}};
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const GUID KSDATAFORMAT_SPECIFIER_WAVEFORMATEX = {0x05589f81L, 0xc356, 0x11ce, {0xbf, 0x01, 0x00, 0xaa, 0x00, 0x55, 0x59, 0x5a}};
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const GUID KSPROPSETID_Connection = {0x1D58C920L, 0xAC9B, 0x11CF, {0xA5, 0xD6, 0x28, 0xDB, 0x04, 0xC1, 0x00, 0x00}};
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const GUID KSEVENTSETID_LoopedStreaming = {0x4682B940L, 0xC6EF, 0x11D0, {0x96, 0xD8, 0x00, 0xAA, 0x00, 0x51, 0xE5, 0x1D}};
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typedef struct
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{
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IDirectSoundCaptureBuffer8Vtbl *lpVtbl;
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LONG ref;
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LPFILTERINFO Filter;
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HANDLE hPin;
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PUCHAR Buffer;
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DWORD BufferSize;
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LPWAVEFORMATEX Format;
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WAVEFORMATEX MixFormat;
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BOOL bMix;
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BOOL bLoop;
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KSSTATE State;
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PUCHAR MixBuffer;
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ULONG MixBufferSize;
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HANDLE hStopEvent;
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volatile LONG StopMixerThread;
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volatile LONG CurrentMixPosition;
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LPDIRECTSOUNDNOTIFY Notify;
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}CDirectSoundCaptureBufferImpl, *LPCDirectSoundCaptureBufferImpl;
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DWORD
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WINAPI
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MixerThreadRoutine(
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LPVOID lpParameter)
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{
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KSPROPERTY Request;
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KSAUDIO_POSITION Position;
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DWORD Result, MixPosition, BufferPosition, BytesWritten, BytesRead, MixLength, BufferLength;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)lpParameter;
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/* setup audio position property request */
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Request.Id = KSPROPERTY_AUDIO_POSITION;
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Request.Set = KSPROPSETID_Audio;
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Request.Flags = KSPROPERTY_TYPE_GET;
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MixPosition = 0;
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BufferPosition = 0;
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do
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{
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/* query current position */
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Result = SyncOverlappedDeviceIoControl(This->hPin, IOCTL_KS_PROPERTY, (PVOID)&Request, sizeof(KSPROPERTY), (PVOID)&Position, sizeof(KSAUDIO_POSITION), NULL);
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/* sanity check */
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ASSERT(Result == ERROR_SUCCESS);
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/* FIXME implement samplerate conversion */
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ASSERT(This->MixFormat.nSamplesPerSec == This->Format->nSamplesPerSec);
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/* FIXME implement bitrate conversion */
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ASSERT(This->MixFormat.wBitsPerSample == This->Format->wBitsPerSample);
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/* sanity check */
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ASSERT(BufferPosition <= This->BufferSize);
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ASSERT(MixPosition <= This->MixBufferSize);
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if (BufferPosition == This->BufferSize)
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{
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/* restart from front */
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BufferPosition = 0;
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}
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if (MixPosition == This->MixBufferSize)
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{
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/* restart from front */
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MixPosition = 0;
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}
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if (This->MixFormat.nChannels != This->Format->nChannels)
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{
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if ((DWORD)Position.PlayOffset >= MixPosition)
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{
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/* calculate buffer position difference */
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MixLength = Position.PlayOffset - MixPosition;
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}
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else
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{
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/* buffer overlap */
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MixLength = This->MixBufferSize - MixPosition;
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}
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BufferLength = This->BufferSize - BufferPosition;
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/* convert the format */
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PerformChannelConversion(&This->MixBuffer[MixPosition], MixLength, &BytesRead, This->MixFormat.nChannels, This->Format->nChannels, This->Format->wBitsPerSample, &This->Buffer[BufferPosition], BufferLength, &BytesWritten);
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/* update buffer offsets */
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MixPosition += BytesRead;
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BufferPosition += BytesWritten;
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DPRINT("MixPosition %u BufferPosition %u BytesRead %u BytesWritten %u MixLength %u BufferLength %u\n", MixPosition, BufferPosition, BytesRead, BytesWritten, MixLength, BufferLength);
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}
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/* Notify Events */
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if (This->Notify)
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{
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DoNotifyPositionEvents(This->Notify, This->CurrentMixPosition, BufferPosition);
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}
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/* update offset */
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InterlockedExchange(&This->CurrentMixPosition, (LONG)BufferPosition);
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/* FIXME use timer */
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Sleep(10);
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}while(InterlockedCompareExchange(&This->StopMixerThread, 0, 0) == 0);
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/* signal stop event */
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SetEvent(This->hStopEvent);
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/* done */
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return 0;
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_QueryInterface(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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IN REFIID riid,
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LPVOID* ppobj)
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{
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LPOLESTR pStr;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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/* check if requested interface is supported */
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if (IsEqualIID(riid, &IID_IUnknown) ||
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IsEqualIID(riid, &IID_IDirectSoundCaptureBuffer) ||
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IsEqualIID(riid, &IID_IDirectSoundCaptureBuffer8))
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{
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*ppobj = (LPVOID)&This->lpVtbl;
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InterlockedIncrement(&This->ref);
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return S_OK;
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}
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/* check if the interface is supported */
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if (IsEqualIID(riid, &IID_IDirectSoundNotify))
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{
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if (!This->Notify)
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{
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HRESULT hr = NewDirectSoundNotify(&This->Notify, This->bLoop, This->bMix, This->hPin, This->BufferSize);
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if (FAILED(hr))
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return hr;
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*ppobj = (LPVOID)This->Notify;
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return S_OK;
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}
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/* increment reference count on existing notify object */
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IDirectSoundNotify_AddRef(This->Notify);
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*ppobj = (LPVOID)This->Notify;
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return S_OK;
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}
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/* interface not supported */
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if (SUCCEEDED(StringFromIID(riid, &pStr)))
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{
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DPRINT("No Interface for class %s\n", pStr);
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CoTaskMemFree(pStr);
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}
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return E_NOINTERFACE;
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}
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ULONG
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WINAPI
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IDirectSoundCaptureBufferImpl_AddRef(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface)
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{
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ULONG ref;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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/* increment reference count */
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ref = InterlockedIncrement(&This->ref);
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return ref;
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}
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ULONG
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WINAPI
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IDirectSoundCaptureBufferImpl_Release(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface)
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{
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ULONG ref;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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/* release reference count */
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ref = InterlockedDecrement(&(This->ref));
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if (!ref)
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{
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if (This->hPin)
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{
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/* close pin handle */
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CloseHandle(This->hPin);
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}
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if (This->hStopEvent)
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{
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/* close stop event handle */
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CloseHandle(This->hStopEvent);
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}
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if (This->MixBuffer)
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{
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/* free mix buffer */
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HeapFree(GetProcessHeap(), 0, This->MixBuffer);
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}
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/* free capture buffer */
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HeapFree(GetProcessHeap(), 0, This->Buffer);
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/* free wave format */
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HeapFree(GetProcessHeap(), 0, This->Format);
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/* free capture buffer */
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_GetCaps(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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LPDSCBCAPS lpDSCBCaps )
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{
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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if (!lpDSCBCaps)
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{
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/* invalid parameter */
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return DSERR_INVALIDPARAM;
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}
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if (lpDSCBCaps->dwSize != sizeof(DSCBCAPS))
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{
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/* invalid parameter */
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return DSERR_INVALIDPARAM;
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}
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lpDSCBCaps->dwBufferBytes = This->BufferSize;
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lpDSCBCaps->dwReserved = 0;
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//lpDSCBCaps->dwFlags = DSCBCAPS_WAVEMAPPED;
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return DS_OK;
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_GetCurrentPosition(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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LPDWORD lpdwCapturePosition,
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LPDWORD lpdwReadPosition)
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{
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KSAUDIO_POSITION Position;
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KSPROPERTY Request;
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DWORD Result;
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DWORD Value;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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if (!This->hPin)
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{
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if (lpdwCapturePosition)
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*lpdwCapturePosition = 0;
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if (lpdwReadPosition)
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*lpdwReadPosition = 0;
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DPRINT("No Audio Pin\n");
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return DS_OK;
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}
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if (This->bMix)
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{
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/* read current position */
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Value = InterlockedCompareExchange(&This->CurrentMixPosition, 0, 0);
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if (lpdwCapturePosition)
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*lpdwCapturePosition = (DWORD)Value;
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if (lpdwReadPosition)
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*lpdwReadPosition = (DWORD)Value;
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return DS_OK;
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}
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/* setup audio position property request */
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Request.Id = KSPROPERTY_AUDIO_POSITION;
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Request.Set = KSPROPSETID_Audio;
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Request.Flags = KSPROPERTY_TYPE_GET;
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Result = SyncOverlappedDeviceIoControl(This->hPin, IOCTL_KS_PROPERTY, (PVOID)&Request, sizeof(KSPROPERTY), (PVOID)&Position, sizeof(KSAUDIO_POSITION), NULL);
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if (Result != ERROR_SUCCESS)
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{
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DPRINT("GetPosition failed with %x\n", Result);
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return DSERR_UNSUPPORTED;
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}
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//DPRINT("Play %I64u Write %I64u \n", Position.PlayOffset, Position.WriteOffset);
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if (lpdwCapturePosition)
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*lpdwCapturePosition = (DWORD)Position.PlayOffset;
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if (lpdwReadPosition)
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*lpdwReadPosition = (DWORD)Position.WriteOffset;
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return DS_OK;
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_GetFormat(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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LPWAVEFORMATEX lpwfxFormat,
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DWORD dwSizeAllocated,
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LPDWORD lpdwSizeWritten)
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{
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DWORD FormatSize;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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FormatSize = sizeof(WAVEFORMATEX) + This->Format->cbSize;
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if (!lpwfxFormat && !lpdwSizeWritten)
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{
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/* invalid parameter */
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return DSERR_INVALIDPARAM;
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}
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if (!lpwfxFormat)
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{
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/* return required format size */
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*lpdwSizeWritten = FormatSize;
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return DS_OK;
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}
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else
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{
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if (dwSizeAllocated >= FormatSize)
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{
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/* copy format */
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CopyMemory(lpwfxFormat, This->Format, FormatSize);
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if (lpdwSizeWritten)
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*lpdwSizeWritten = FormatSize;
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return DS_OK;
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}
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/* buffer too small */
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if (lpdwSizeWritten)
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*lpdwSizeWritten = 0;
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return DSERR_INVALIDPARAM;
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}
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_GetStatus(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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LPDWORD lpdwStatus )
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{
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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if (!lpdwStatus)
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{
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/* invalid parameter */
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return DSERR_INVALIDPARAM;
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}
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/* reset flags */
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*lpdwStatus = 0;
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/* check if pin is running */
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if (This->State == KSSTATE_RUN)
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*lpdwStatus |= DSCBSTATUS_CAPTURING;
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/* check if a looped buffer is used */
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if (This->bLoop)
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*lpdwStatus |= DSCBSTATUS_LOOPING;
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/* done */
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return DS_OK;
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_Initialize(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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LPDIRECTSOUNDCAPTURE lpDSC,
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LPCDSCBUFFERDESC lpcDSCBDesc)
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{
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/* capture buffer is already initialized */
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return DSERR_ALREADYINITIALIZED;
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_Lock(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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DWORD dwOffset,
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DWORD dwBytes,
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LPVOID* ppvAudioPtr1,
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LPDWORD pdwAudioBytes1,
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LPVOID* ppvAudioPtr2,
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LPDWORD pdwAudioBytes2,
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DWORD dwFlags )
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{
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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DPRINT("This %p dwOffset %u dwBytes %u ppvAudioPtr1 %p pdwAudioBytes1 %p ppvAudioPtr2 %p pdwAudioBytes2 %p dwFlags %x This->BufferSize %u\n",
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This, dwOffset, dwBytes, ppvAudioPtr1, pdwAudioBytes1, ppvAudioPtr2, pdwAudioBytes2, dwFlags, This->BufferSize);
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if (dwFlags == DSBLOCK_ENTIREBUFFER)
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{
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*ppvAudioPtr1 = (LPVOID)This->Buffer;
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*pdwAudioBytes1 = This->BufferSize;
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if (ppvAudioPtr2)
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*ppvAudioPtr2 = NULL;
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if (pdwAudioBytes2)
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*pdwAudioBytes2 = 0;
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return DS_OK;
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}
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else
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{
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ASSERT(dwOffset < This->BufferSize);
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ASSERT(dwBytes < This->BufferSize);
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ASSERT(dwBytes + dwOffset <= This->BufferSize);
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*ppvAudioPtr1 = This->Buffer + dwOffset;
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*pdwAudioBytes1 = dwBytes;
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if (ppvAudioPtr2)
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*ppvAudioPtr2 = NULL;
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if (pdwAudioBytes2)
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*pdwAudioBytes2 = 0;
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return DS_OK;
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}
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}
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HRESULT
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WINAPI
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IDirectSoundCaptureBufferImpl_Start(
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LPDIRECTSOUNDCAPTUREBUFFER8 iface,
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DWORD dwFlags )
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{
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KSPROPERTY Property;
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KSSTREAM_HEADER Header;
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DWORD Result, BytesTransferred;
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OVERLAPPED Overlapped;
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KSSTATE State;
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HANDLE hThread;
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LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
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DPRINT("IDirectSoundCaptureBufferImpl_Start Flags %x\n", dwFlags);
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ASSERT(dwFlags == DSCBSTART_LOOPING);
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/* check if pin is already running */
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if (This->State == KSSTATE_RUN)
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return DS_OK;
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/* check if there is a pin instance */
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if (!This->hPin)
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return DSERR_GENERIC;
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/* setup request */
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Property.Set = KSPROPSETID_Connection;
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Property.Id = KSPROPERTY_CONNECTION_STATE;
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Property.Flags = KSPROPERTY_TYPE_SET;
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State = KSSTATE_RUN;
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/* set pin to run */
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Result = SyncOverlappedDeviceIoControl(This->hPin, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), (PVOID)&State, sizeof(KSSTATE), &BytesTransferred);
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ASSERT(Result == ERROR_SUCCESS);
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if (Result == ERROR_SUCCESS)
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{
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/* store result */
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This->State = State;
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}
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/* initialize overlapped struct */
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ZeroMemory(&Overlapped, sizeof(OVERLAPPED));
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Overlapped.hEvent = CreateEvent(NULL, FALSE, FALSE, NULL);
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/* clear stream header */
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ZeroMemory(&Header, sizeof(KSSTREAM_HEADER));
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/* initialize stream header */
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Header.FrameExtent = This->BufferSize;
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Header.DataUsed = 0;
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Header.Data = (This->bMix ? This->MixBuffer : This->Buffer);
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Header.Size = sizeof(KSSTREAM_HEADER);
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Header.PresentationTime.Numerator = 1;
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Header.PresentationTime.Denominator = 1;
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Result = DeviceIoControl(This->hPin, IOCTL_KS_WRITE_STREAM, NULL, 0, &Header, sizeof(KSSTREAM_HEADER), &BytesTransferred, &Overlapped);
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if (Result != ERROR_SUCCESS)
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{
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DPRINT("Failed submit buffer with %lx\n", Result);
|
|
return DSERR_GENERIC;
|
|
}
|
|
|
|
if (This->bMix)
|
|
{
|
|
if (!This->hStopEvent)
|
|
{
|
|
/* create stop event */
|
|
This->hStopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
if (!This->hStopEvent)
|
|
{
|
|
DPRINT1("Failed to create event object with %x\n", GetLastError());
|
|
return DSERR_GENERIC;
|
|
}
|
|
}
|
|
|
|
/* set state to stop false */
|
|
This->StopMixerThread = FALSE;
|
|
|
|
hThread = CreateThread(NULL, 0, MixerThreadRoutine, (PVOID)This, 0, NULL);
|
|
if (!hThread)
|
|
{
|
|
DPRINT1("Failed to create thread with %x\n", GetLastError());
|
|
return DSERR_GENERIC;
|
|
}
|
|
|
|
/* close thread handle */
|
|
CloseHandle(hThread);
|
|
}
|
|
|
|
|
|
return DS_OK;
|
|
}
|
|
|
|
HRESULT
|
|
WINAPI
|
|
IDirectSoundCaptureBufferImpl_Stop( LPDIRECTSOUNDCAPTUREBUFFER8 iface )
|
|
{
|
|
KSPROPERTY Property;
|
|
DWORD Result;
|
|
KSSTATE State;
|
|
|
|
LPCDirectSoundCaptureBufferImpl This = (LPCDirectSoundCaptureBufferImpl)CONTAINING_RECORD(iface, CDirectSoundCaptureBufferImpl, lpVtbl);
|
|
|
|
if (This->State == KSSTATE_STOP)
|
|
{
|
|
/* stream has already been stopped */
|
|
return DS_OK;
|
|
}
|
|
|
|
if (!This->hPin)
|
|
return DSERR_GENERIC;
|
|
|
|
/* setup request */
|
|
Property.Set = KSPROPSETID_Connection;
|
|
Property.Id = KSPROPERTY_CONNECTION_STATE;
|
|
Property.Flags = KSPROPERTY_TYPE_SET;
|
|
State = KSSTATE_STOP;
|
|
|
|
|
|
/* set pin to stop */
|
|
Result = SyncOverlappedDeviceIoControl(This->hPin, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), (PVOID)&State, sizeof(KSSTATE), NULL);
|
|
|
|
ASSERT(Result == ERROR_SUCCESS);
|
|
|
|
|
|
if (This->bMix)
|
|
{
|
|
/* sanity check */
|
|
ASSERT(This->hStopEvent);
|
|
/* reset event */
|
|
ResetEvent(This->hStopEvent);
|
|
/* signal event to stop */
|
|
This->StopMixerThread = TRUE;
|
|
/* Wait for the event to stop */
|
|
WaitForSingleObject(This->hStopEvent, INFINITE);
|
|
}
|
|
|
|
|
|
if (Result == ERROR_SUCCESS)
|
|
{
|
|
/* store result */
|
|
This->State = State;
|
|
return DS_OK;
|
|
}
|
|
|
|
DPRINT("Failed to stop pin\n");
|
|
return DSERR_GENERIC;
|
|
}
|
|
|
|
HRESULT
|
|
WINAPI
|
|
IDirectSoundCaptureBufferImpl_Unlock(
|
|
LPDIRECTSOUNDCAPTUREBUFFER8 iface,
|
|
LPVOID lpvAudioPtr1,
|
|
DWORD dwAudioBytes1,
|
|
LPVOID lpvAudioPtr2,
|
|
DWORD dwAudioBytes2 )
|
|
{
|
|
return DS_OK;
|
|
}
|
|
|
|
HRESULT
|
|
WINAPI
|
|
IDirectSoundCaptureBufferImpl_GetObjectInPath(
|
|
LPDIRECTSOUNDCAPTUREBUFFER8 iface,
|
|
REFGUID rguidObject,
|
|
DWORD dwIndex,
|
|
REFGUID rguidInterface,
|
|
LPVOID* ppObject )
|
|
{
|
|
UNIMPLEMENTED
|
|
return DSERR_INVALIDPARAM;
|
|
}
|
|
|
|
HRESULT
|
|
WINAPI
|
|
IDirectSoundCaptureBufferImpl_GetFXStatus(
|
|
LPDIRECTSOUNDCAPTUREBUFFER8 iface,
|
|
DWORD dwFXCount,
|
|
LPDWORD pdwFXStatus )
|
|
{
|
|
UNIMPLEMENTED
|
|
return DSERR_INVALIDPARAM;
|
|
}
|
|
|
|
|
|
static IDirectSoundCaptureBuffer8Vtbl vt_DirectSoundCaptureBuffer8 =
|
|
{
|
|
/* IUnknown methods */
|
|
IDirectSoundCaptureBufferImpl_QueryInterface,
|
|
IDirectSoundCaptureBufferImpl_AddRef,
|
|
IDirectSoundCaptureBufferImpl_Release,
|
|
|
|
/* IDirectSoundCaptureBuffer methods */
|
|
IDirectSoundCaptureBufferImpl_GetCaps,
|
|
IDirectSoundCaptureBufferImpl_GetCurrentPosition,
|
|
IDirectSoundCaptureBufferImpl_GetFormat,
|
|
IDirectSoundCaptureBufferImpl_GetStatus,
|
|
IDirectSoundCaptureBufferImpl_Initialize,
|
|
IDirectSoundCaptureBufferImpl_Lock,
|
|
IDirectSoundCaptureBufferImpl_Start,
|
|
IDirectSoundCaptureBufferImpl_Stop,
|
|
IDirectSoundCaptureBufferImpl_Unlock,
|
|
|
|
/* IDirectSoundCaptureBuffer methods */
|
|
IDirectSoundCaptureBufferImpl_GetObjectInPath,
|
|
IDirectSoundCaptureBufferImpl_GetFXStatus
|
|
};
|
|
|
|
|
|
|
|
|
|
HRESULT
|
|
NewDirectSoundCaptureBuffer(
|
|
LPDIRECTSOUNDCAPTUREBUFFER8 *OutBuffer,
|
|
LPFILTERINFO Filter,
|
|
LPCDSCBUFFERDESC lpcDSBufferDesc)
|
|
{
|
|
DWORD FormatSize, MixBufferSize;
|
|
ULONG DeviceId = 0, PinId;
|
|
DWORD Result = ERROR_SUCCESS;
|
|
WAVEFORMATEX MixFormat;
|
|
|
|
LPCDirectSoundCaptureBufferImpl This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(CDirectSoundCaptureBufferImpl));
|
|
|
|
if (!This)
|
|
{
|
|
/* not enough memory */
|
|
return DSERR_OUTOFMEMORY;
|
|
}
|
|
|
|
/* calculate format size */
|
|
FormatSize = sizeof(WAVEFORMATEX) + lpcDSBufferDesc->lpwfxFormat->cbSize;
|
|
/* allocate format struct */
|
|
This->Format = HeapAlloc(GetProcessHeap(), 0, FormatSize);
|
|
if (!This->Format)
|
|
{
|
|
/* not enough memory */
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
return DSERR_OUTOFMEMORY;
|
|
}
|
|
|
|
/* sanity check */
|
|
ASSERT(lpcDSBufferDesc->dwBufferBytes);
|
|
|
|
/* allocate capture buffer */
|
|
This->Buffer = HeapAlloc(GetProcessHeap(), 0, lpcDSBufferDesc->dwBufferBytes);
|
|
if (!This->Buffer)
|
|
{
|
|
/* not enough memory */
|
|
HeapFree(GetProcessHeap(), 0, This->Format);
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
return DSERR_OUTOFMEMORY;
|
|
}
|
|
|
|
/* store buffer size */
|
|
This->BufferSize = lpcDSBufferDesc->dwBufferBytes;
|
|
ASSERT(lpcDSBufferDesc->lpwfxFormat->cbSize == 0);
|
|
|
|
do
|
|
{
|
|
/* try all available recording pins on that filter */
|
|
PinId = GetPinIdFromFilter(Filter, TRUE, DeviceId);
|
|
|
|
if (PinId == ULONG_MAX)
|
|
break;
|
|
|
|
Result = OpenPin(Filter->hFilter, PinId, lpcDSBufferDesc->lpwfxFormat, &This->hPin, TRUE);
|
|
if (Result == ERROR_SUCCESS)
|
|
break;
|
|
|
|
DeviceId++;
|
|
}while(TRUE);
|
|
|
|
if (Result != ERROR_SUCCESS)
|
|
{
|
|
/* failed to instantiate the capture pin with the native format
|
|
* try to compute a compatible format and use that
|
|
* we could use the mixer api for this purpose but... the kmixer isnt working very good atm
|
|
*/
|
|
|
|
DeviceId = 0;
|
|
do
|
|
{
|
|
/* try all available recording pins on that filter */
|
|
PinId = GetPinIdFromFilter(Filter, TRUE, DeviceId);
|
|
DPRINT("PinId %u DeviceId %u\n", PinId, DeviceId);
|
|
|
|
if (PinId == ULONG_MAX)
|
|
break;
|
|
|
|
if (CreateCompatiblePin(Filter->hFilter, PinId, TRUE, lpcDSBufferDesc->lpwfxFormat, &MixFormat, &This->hPin))
|
|
{
|
|
This->bMix = TRUE;
|
|
CopyMemory(&This->MixFormat, &MixFormat, sizeof(WAVEFORMATEX));
|
|
break;
|
|
}
|
|
|
|
DeviceId++;
|
|
}while(TRUE);
|
|
|
|
|
|
if (!This->bMix)
|
|
{
|
|
/* FIXME should not happen */
|
|
DPRINT("failed to compute a compatible format\n");
|
|
HeapFree(GetProcessHeap(), 0, This->MixBuffer);
|
|
HeapFree(GetProcessHeap(), 0, This->Buffer);
|
|
HeapFree(GetProcessHeap(), 0, This->Format);
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
return DSERR_GENERIC;
|
|
}
|
|
|
|
MixBufferSize = lpcDSBufferDesc->dwBufferBytes;
|
|
MixBufferSize /= lpcDSBufferDesc->lpwfxFormat->nChannels;
|
|
MixBufferSize /= (lpcDSBufferDesc->lpwfxFormat->wBitsPerSample/8);
|
|
|
|
MixBufferSize *= This->MixFormat.nChannels;
|
|
MixBufferSize *= (This->MixFormat.wBitsPerSample/8);
|
|
|
|
/* allocate buffer for mixing */
|
|
This->MixBuffer = HeapAlloc(GetProcessHeap(), 0, MixBufferSize);
|
|
if (!This->Buffer)
|
|
{
|
|
/* not enough memory */
|
|
CloseHandle(This->hPin);
|
|
HeapFree(GetProcessHeap(), 0, This->Buffer);
|
|
HeapFree(GetProcessHeap(), 0, This->Format);
|
|
HeapFree(GetProcessHeap(), 0, This);
|
|
return DSERR_OUTOFMEMORY;
|
|
}
|
|
This->MixBufferSize = MixBufferSize;
|
|
DPRINT1("MixBufferSize %u BufferSize %u\n", MixBufferSize, This->BufferSize);
|
|
}
|
|
|
|
/* initialize capture buffer */
|
|
This->ref = 1;
|
|
This->lpVtbl = &vt_DirectSoundCaptureBuffer8;
|
|
This->Filter = Filter;
|
|
This->State = KSSTATE_STOP;
|
|
This->bLoop = TRUE;
|
|
|
|
RtlMoveMemory(This->Format, lpcDSBufferDesc->lpwfxFormat, FormatSize);
|
|
|
|
*OutBuffer = (LPDIRECTSOUNDCAPTUREBUFFER8)&This->lpVtbl;
|
|
return DS_OK;
|
|
}
|