diff options
Diffstat (limited to 'pd/portaudio/pa_win_wdmks/pa_win_wdmks.c')
| -rw-r--r-- | pd/portaudio/pa_win_wdmks/pa_win_wdmks.c | 3269 |
1 files changed, 0 insertions, 3269 deletions
diff --git a/pd/portaudio/pa_win_wdmks/pa_win_wdmks.c b/pd/portaudio/pa_win_wdmks/pa_win_wdmks.c deleted file mode 100644 index 934d44b6..00000000 --- a/pd/portaudio/pa_win_wdmks/pa_win_wdmks.c +++ /dev/null @@ -1,3269 +0,0 @@ -/* - * $Id: pa_win_wdmks.c,v 1.23 2007-08-06 16:39:54 millerpuckette Exp $ - * PortAudio Windows WDM-KS interface - * - * Author: Andrew Baldwin - * Based on the Open Source API proposed by Ross Bencina - * Copyright (c) 1999-2004 Andrew Baldwin, 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. - */ - -/** @file - @brief Portaudio WDM-KS host API. - - @note This is the implementation of the Portaudio host API using the - Windows WDM/Kernel Streaming API in order to enable very low latency - playback and recording on all modern Windows platforms (e.g. 2K, XP) - Note: This API accesses the device drivers below the usual KMIXER - component which is normally used to enable multi-client mixing and - format conversion. That means that it will lock out all other users - of a device for the duration of active stream using those devices -*/ - -#include <stdio.h> - -/* Debugging/tracing support */ - -#define PA_LOGE_ -#define PA_LOGL_ - -#ifdef __GNUC__ - #include <initguid.h> - #define _WIN32_WINNT 0x0501 - #define WINVER 0x0501 -#endif - -#include <string.h> /* strlen() */ -#include <assert.h> - -#include "pa_util.h" -#include "pa_allocation.h" -#include "pa_hostapi.h" -#include "pa_stream.h" -#include "pa_cpuload.h" -#include "pa_process.h" -#include "portaudio.h" - -#include <windows.h> -#include <winioctl.h> - - -#ifdef __GNUC__ - #undef PA_LOGE_ - #define PA_LOGE_ PA_DEBUG(("%s {\n",__FUNCTION__)) - #undef PA_LOGL_ - #define PA_LOGL_ PA_DEBUG(("} %s\n",__FUNCTION__)) - /* These defines are set in order to allow the WIndows DirectX - * headers to compile with a GCC compiler such as MinGW - * NOTE: The headers may generate a few warning in GCC, but - * they should compile */ - #define _INC_MMSYSTEM - #define _INC_MMREG - #define _NTRTL_ /* Turn off default definition of DEFINE_GUIDEX */ - #define DEFINE_GUID_THUNK(name,guid) DEFINE_GUID(name,guid) - #define DEFINE_GUIDEX(n) DEFINE_GUID_THUNK( n, STATIC_##n ) - #if !defined( DEFINE_WAVEFORMATEX_GUID ) - #define DEFINE_WAVEFORMATEX_GUID(x) (USHORT)(x), 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 - #endif - #define WAVE_FORMAT_ADPCM 0x0002 - #define WAVE_FORMAT_IEEE_FLOAT 0x0003 - #define WAVE_FORMAT_ALAW 0x0006 - #define WAVE_FORMAT_MULAW 0x0007 - #define WAVE_FORMAT_MPEG 0x0050 - #define WAVE_FORMAT_DRM 0x0009 - #define DYNAMIC_GUID_THUNK(l,w1,w2,b1,b2,b3,b4,b5,b6,b7,b8) {l,w1,w2,{b1,b2,b3,b4,b5,b6,b7,b8}} - #define DYNAMIC_GUID(data) DYNAMIC_GUID_THUNK(data) -#endif - -#ifdef _MSC_VER - #define DYNAMIC_GUID(data) {data} - #define _INC_MMREG - #define _NTRTL_ /* Turn off default definition of DEFINE_GUIDEX */ - #undef DEFINE_GUID - #define DEFINE_GUID(n,data) EXTERN_C const GUID n = {data} - #define DEFINE_GUID_THUNK(n,data) DEFINE_GUID(n,data) - #define DEFINE_GUIDEX(n) DEFINE_GUID_THUNK(n, STATIC_##n) - #if !defined( DEFINE_WAVEFORMATEX_GUID ) - #define DEFINE_WAVEFORMATEX_GUID(x) (USHORT)(x), 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71 - #endif - #define WAVE_FORMAT_ADPCM 0x0002 - #define WAVE_FORMAT_IEEE_FLOAT 0x0003 - #define WAVE_FORMAT_ALAW 0x0006 - #define WAVE_FORMAT_MULAW 0x0007 - #define WAVE_FORMAT_MPEG 0x0050 - #define WAVE_FORMAT_DRM 0x0009 -#endif - -#include <ks.h> -#include <ksmedia.h> -#include <tchar.h> -#include <assert.h> -#include <stdio.h> - -/* These next definitions allow the use of the KSUSER DLL */ -typedef KSDDKAPI DWORD WINAPI KSCREATEPIN(HANDLE, PKSPIN_CONNECT, ACCESS_MASK, PHANDLE); -extern HMODULE DllKsUser; -extern KSCREATEPIN* FunctionKsCreatePin; - -/* Forward definition to break circular type reference between pin and filter */ -struct __PaWinWdmFilter; -typedef struct __PaWinWdmFilter PaWinWdmFilter; - -/* The Pin structure - * A pin is an input or output node, e.g. for audio flow */ -typedef struct __PaWinWdmPin -{ - HANDLE handle; - PaWinWdmFilter* parentFilter; - unsigned long pinId; - KSPIN_CONNECT* pinConnect; - unsigned long pinConnectSize; - KSDATAFORMAT_WAVEFORMATEX* ksDataFormatWfx; - KSPIN_COMMUNICATION communication; - KSDATARANGE* dataRanges; - KSMULTIPLE_ITEM* dataRangesItem; - KSPIN_DATAFLOW dataFlow; - KSPIN_CINSTANCES instances; - unsigned long frameSize; - int maxChannels; - unsigned long formats; - int bestSampleRate; -} -PaWinWdmPin; - -/* The Filter structure - * A filter has a number of pins and a "friendly name" */ -struct __PaWinWdmFilter -{ - HANDLE handle; - int pinCount; - PaWinWdmPin** pins; - TCHAR filterName[MAX_PATH]; - TCHAR friendlyName[MAX_PATH]; - int maxInputChannels; - int maxOutputChannels; - unsigned long formats; - int usageCount; - int bestSampleRate; -}; - -/* PaWinWdmHostApiRepresentation - host api datastructure specific to this implementation */ -typedef struct __PaWinWdmHostApiRepresentation -{ - PaUtilHostApiRepresentation inheritedHostApiRep; - PaUtilStreamInterface callbackStreamInterface; - PaUtilStreamInterface blockingStreamInterface; - - PaUtilAllocationGroup* allocations; - PaWinWdmFilter** filters; - int filterCount; -} -PaWinWdmHostApiRepresentation; - -typedef struct __PaWinWdmDeviceInfo -{ - PaDeviceInfo inheritedDeviceInfo; - PaWinWdmFilter* filter; -} -PaWinWdmDeviceInfo; - -typedef struct __DATAPACKET -{ - KSSTREAM_HEADER Header; - OVERLAPPED Signal; -} DATAPACKET; - -/* PaWinWdmStream - a stream data structure specifically for this implementation */ -typedef struct __PaWinWdmStream -{ - PaUtilStreamRepresentation streamRepresentation; - PaUtilCpuLoadMeasurer cpuLoadMeasurer; - PaUtilBufferProcessor bufferProcessor; - - PaWinWdmPin* recordingPin; - PaWinWdmPin* playbackPin; - char* hostBuffer; - unsigned long framesPerHostIBuffer; - unsigned long framesPerHostOBuffer; - int bytesPerInputFrame; - int bytesPerOutputFrame; - int streamStarted; - int streamActive; - int streamStop; - int streamAbort; - int oldProcessPriority; - HANDLE streamThread; - HANDLE events[5]; /* 2 play + 2 record packets + abort events */ - DATAPACKET packets[4]; /* 2 play + 2 record */ - PaStreamFlags streamFlags; - /* These values handle the case where the user wants to use fewer - * channels than the device has */ - int userInputChannels; - int deviceInputChannels; - int userOutputChannels; - int deviceOutputChannels; - int inputSampleSize; - int outputSampleSize; -} -PaWinWdmStream; - -#include <setupapi.h> - -HMODULE DllKsUser = NULL; -KSCREATEPIN* FunctionKsCreatePin = NULL; - -/* prototypes for functions declared in this file */ - -#ifdef __cplusplus -extern "C" -{ -#endif /* __cplusplus */ - -PaError PaWinWdm_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex index ); - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -/* Low level I/O functions */ -static PaError WdmSyncIoctl(HANDLE handle, - unsigned long ioctlNumber, - void* inBuffer, - unsigned long inBufferCount, - void* outBuffer, - unsigned long outBufferCount, - unsigned long* bytesReturned); -static PaError WdmGetPropertySimple(HANDLE handle, - const GUID* const guidPropertySet, - unsigned long property, - void* value, - unsigned long valueCount, - void* instance, - unsigned long instanceCount); -static PaError WdmSetPropertySimple(HANDLE handle, - const GUID* const guidPropertySet, - unsigned long property, - void* value, - unsigned long valueCount, - void* instance, - unsigned long instanceCount); -static PaError WdmGetPinPropertySimple(HANDLE handle, - unsigned long pinId, - const GUID* const guidPropertySet, - unsigned long property, - void* value, - unsigned long valueCount); -static PaError WdmGetPinPropertyMulti(HANDLE handle, - unsigned long pinId, - const GUID* const guidPropertySet, - unsigned long property, - KSMULTIPLE_ITEM** ksMultipleItem); - -/** Pin management functions */ -static PaWinWdmPin* PinNew(PaWinWdmFilter* parentFilter, unsigned long pinId, PaError* error); -static void PinFree(PaWinWdmPin* pin); -static void PinClose(PaWinWdmPin* pin); -static PaError PinInstantiate(PaWinWdmPin* pin); -/*static PaError PinGetState(PaWinWdmPin* pin, KSSTATE* state); NOT USED */ -static PaError PinSetState(PaWinWdmPin* pin, KSSTATE state); -static PaError PinSetFormat(PaWinWdmPin* pin, const WAVEFORMATEX* format); -static PaError PinIsFormatSupported(PaWinWdmPin* pin, const WAVEFORMATEX* format); - -/* Filter management functions */ -static PaWinWdmFilter* FilterNew( - TCHAR* filterName, - TCHAR* friendlyName, - PaError* error); -static void FilterFree(PaWinWdmFilter* filter); -static PaWinWdmPin* FilterCreateRenderPin( - PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error); -static PaWinWdmPin* FilterFindViableRenderPin( - PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error); -static PaError FilterCanCreateRenderPin( - PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex); -static PaWinWdmPin* FilterCreateCapturePin( - PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error); -static PaWinWdmPin* FilterFindViableCapturePin( - PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error); -static PaError FilterCanCreateCapturePin( - PaWinWdmFilter* filter, - const WAVEFORMATEX* pwfx); -static PaError FilterUse( - PaWinWdmFilter* filter); -static void FilterRelease( - PaWinWdmFilter* filter); - -/* Interface functions */ -static void Terminate( struct PaUtilHostApiRepresentation *hostApi ); -static PaError IsFormatSupported( - struct PaUtilHostApiRepresentation *hostApi, - const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate ); -static PaError OpenStream( - struct PaUtilHostApiRepresentation *hostApi, - PaStream** s, - const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate, - unsigned long framesPerBuffer, - PaStreamFlags streamFlags, - PaStreamCallback *streamCallback, - 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 PaTime GetStreamTime( PaStream *stream ); -static double GetStreamCpuLoad( PaStream* stream ); -static PaError ReadStream( - PaStream* stream, - void *buffer, - unsigned long frames ); -static PaError WriteStream( - PaStream* stream, - const void *buffer, - unsigned long frames ); -static signed long GetStreamReadAvailable( PaStream* stream ); -static signed long GetStreamWriteAvailable( PaStream* stream ); - -/* Utility functions */ -static unsigned long GetWfexSize(const WAVEFORMATEX* wfex); -static PaError BuildFilterList(PaWinWdmHostApiRepresentation* wdmHostApi); -static BOOL PinWrite(HANDLE h, DATAPACKET* p); -static BOOL PinRead(HANDLE h, DATAPACKET* p); -static void DuplicateFirstChannelInt16(void* buffer, int channels, int samples); -static void DuplicateFirstChannelInt24(void* buffer, int channels, int samples); -static DWORD WINAPI ProcessingThread(LPVOID pParam); - -/* Function bodies */ - -static unsigned long GetWfexSize(const WAVEFORMATEX* wfex) -{ - if( wfex->wFormatTag == WAVE_FORMAT_PCM ) - { - return sizeof( WAVEFORMATEX ); - } - else - { - return (sizeof( WAVEFORMATEX ) + wfex->cbSize); - } -} - -/* -Low level pin/filter access functions -*/ -static PaError WdmSyncIoctl( - HANDLE handle, - unsigned long ioctlNumber, - void* inBuffer, - unsigned long inBufferCount, - void* outBuffer, - unsigned long outBufferCount, - unsigned long* bytesReturned) -{ - PaError result = paNoError; - OVERLAPPED overlapped; - int boolResult; - unsigned long dummyBytesReturned; - unsigned long error; - - if( !bytesReturned ) - { - /* User a dummy as the caller hasn't supplied one */ - bytesReturned = &dummyBytesReturned; - } - - FillMemory((void *)&overlapped,sizeof(overlapped),0); - overlapped.hEvent = CreateEvent(NULL,FALSE,FALSE,NULL); - if( !overlapped.hEvent ) - { - result = paInsufficientMemory; - goto error; - } - overlapped.hEvent = (HANDLE)((DWORD_PTR)overlapped.hEvent | 0x1); - - boolResult = DeviceIoControl(handle, ioctlNumber, inBuffer, inBufferCount, - outBuffer, outBufferCount, bytesReturned, &overlapped); - if( !boolResult ) - { - error = GetLastError(); - if( error == ERROR_IO_PENDING ) - { - error = WaitForSingleObject(overlapped.hEvent,INFINITE); - if( error != WAIT_OBJECT_0 ) - { - result = paUnanticipatedHostError; - goto error; - } - } - else if((( error == ERROR_INSUFFICIENT_BUFFER ) || - ( error == ERROR_MORE_DATA )) && - ( ioctlNumber == IOCTL_KS_PROPERTY ) && - ( outBufferCount == 0 )) - { - boolResult = TRUE; - } - else - { - result = paUnanticipatedHostError; - } - } - if( !boolResult ) - *bytesReturned = 0; - -error: - if( overlapped.hEvent ) - { - CloseHandle( overlapped.hEvent ); - } - return result; -} - -static PaError WdmGetPropertySimple(HANDLE handle, - const GUID* const guidPropertySet, - unsigned long property, - void* value, - unsigned long valueCount, - void* instance, - unsigned long instanceCount) -{ - PaError result; - KSPROPERTY* ksProperty; - unsigned long propertyCount; - - propertyCount = sizeof(KSPROPERTY) + instanceCount; - ksProperty = (KSPROPERTY*)PaUtil_AllocateMemory( propertyCount ); - if( !ksProperty ) - { - return paInsufficientMemory; - } - - FillMemory((void*)ksProperty,sizeof(ksProperty),0); - ksProperty->Set = *guidPropertySet; - ksProperty->Id = property; - ksProperty->Flags = KSPROPERTY_TYPE_GET; - - if( instance ) - { - memcpy( (void*)(((char*)ksProperty)+sizeof(KSPROPERTY)), instance, instanceCount ); - } - - result = WdmSyncIoctl( - handle, - IOCTL_KS_PROPERTY, - ksProperty, - propertyCount, - value, - valueCount, - NULL); - - PaUtil_FreeMemory( ksProperty ); - return result; -} - -static PaError WdmSetPropertySimple( - HANDLE handle, - const GUID* const guidPropertySet, - unsigned long property, - void* value, - unsigned long valueCount, - void* instance, - unsigned long instanceCount) -{ - PaError result; - KSPROPERTY* ksProperty; - unsigned long propertyCount = 0; - - propertyCount = sizeof(KSPROPERTY) + instanceCount; - ksProperty = (KSPROPERTY*)PaUtil_AllocateMemory( propertyCount ); - if( !ksProperty ) - { - return paInsufficientMemory; - } - - ksProperty->Set = *guidPropertySet; - ksProperty->Id = property; - ksProperty->Flags = KSPROPERTY_TYPE_SET; - - if( instance ) - { - memcpy((void*)((char*)ksProperty + sizeof(KSPROPERTY)), instance, instanceCount); - } - - result = WdmSyncIoctl( - handle, - IOCTL_KS_PROPERTY, - ksProperty, - propertyCount, - value, - valueCount, - NULL); - - PaUtil_FreeMemory( ksProperty ); - return result; -} - -static PaError WdmGetPinPropertySimple( - HANDLE handle, - unsigned long pinId, - const GUID* const guidPropertySet, - unsigned long property, - void* value, - unsigned long valueCount) -{ - PaError result; - - KSP_PIN ksPProp; - ksPProp.Property.Set = *guidPropertySet; - ksPProp.Property.Id = property; - ksPProp.Property.Flags = KSPROPERTY_TYPE_GET; - ksPProp.PinId = pinId; - ksPProp.Reserved = 0; - - result = WdmSyncIoctl( - handle, - IOCTL_KS_PROPERTY, - &ksPProp, - sizeof(KSP_PIN), - value, - valueCount, - NULL); - - return result; -} - -static PaError WdmGetPinPropertyMulti( - HANDLE handle, - unsigned long pinId, - const GUID* const guidPropertySet, - unsigned long property, - KSMULTIPLE_ITEM** ksMultipleItem) -{ - PaError result; - unsigned long multipleItemSize = 0; - KSP_PIN ksPProp; - - ksPProp.Property.Set = *guidPropertySet; - ksPProp.Property.Id = property; - ksPProp.Property.Flags = KSPROPERTY_TYPE_GET; - ksPProp.PinId = pinId; - ksPProp.Reserved = 0; - - result = WdmSyncIoctl( - handle, - IOCTL_KS_PROPERTY, - &ksPProp.Property, - sizeof(KSP_PIN), - NULL, - 0, - &multipleItemSize); - if( result != paNoError ) - { - return result; - } - - *ksMultipleItem = (KSMULTIPLE_ITEM*)PaUtil_AllocateMemory( multipleItemSize ); - if( !*ksMultipleItem ) - { - return paInsufficientMemory; - } - - result = WdmSyncIoctl( - handle, - IOCTL_KS_PROPERTY, - &ksPProp, - sizeof(KSP_PIN), - (void*)*ksMultipleItem, - multipleItemSize, - NULL); - - if( result != paNoError ) - { - PaUtil_FreeMemory( ksMultipleItem ); - } - - return result; -} - - -/* -Create a new pin object belonging to a filter -The pin object holds all the configuration information about the pin -before it is opened, and then the handle of the pin after is opened -*/ -static PaWinWdmPin* PinNew(PaWinWdmFilter* parentFilter, unsigned long pinId, PaError* error) -{ - PaWinWdmPin* pin; - PaError result; - unsigned long i; - KSMULTIPLE_ITEM* item = NULL; - KSIDENTIFIER* identifier; - KSDATARANGE* dataRange; - - PA_LOGE_; - PA_DEBUG(("Creating pin %d:\n",pinId)); - - /* Allocate the new PIN object */ - pin = (PaWinWdmPin*)PaUtil_AllocateMemory( sizeof(PaWinWdmPin) ); - if( !pin ) - { - result = paInsufficientMemory; - goto error; - } - - /* Zero the pin object */ - /* memset( (void*)pin, 0, sizeof(PaWinWdmPin) ); */ - - pin->parentFilter = parentFilter; - pin->pinId = pinId; - - /* Allocate a connect structure */ - pin->pinConnectSize = sizeof(KSPIN_CONNECT) + sizeof(KSDATAFORMAT_WAVEFORMATEX); - pin->pinConnect = (KSPIN_CONNECT*)PaUtil_AllocateMemory( pin->pinConnectSize ); - if( !pin->pinConnect ) - { - result = paInsufficientMemory; - goto error; - } - - /* Configure the connect structure with default values */ - pin->pinConnect->Interface.Set = KSINTERFACESETID_Standard; - pin->pinConnect->Interface.Id = KSINTERFACE_STANDARD_STREAMING; - pin->pinConnect->Interface.Flags = 0; - pin->pinConnect->Medium.Set = KSMEDIUMSETID_Standard; - pin->pinConnect->Medium.Id = KSMEDIUM_TYPE_ANYINSTANCE; - pin->pinConnect->Medium.Flags = 0; - pin->pinConnect->PinId = pinId; - pin->pinConnect->PinToHandle = NULL; - pin->pinConnect->Priority.PriorityClass = KSPRIORITY_NORMAL; - pin->pinConnect->Priority.PrioritySubClass = 1; - pin->ksDataFormatWfx = (KSDATAFORMAT_WAVEFORMATEX*)(pin->pinConnect + 1); - pin->ksDataFormatWfx->DataFormat.FormatSize = sizeof(KSDATAFORMAT_WAVEFORMATEX); - pin->ksDataFormatWfx->DataFormat.Flags = 0; - pin->ksDataFormatWfx->DataFormat.Reserved = 0; - pin->ksDataFormatWfx->DataFormat.MajorFormat = KSDATAFORMAT_TYPE_AUDIO; - pin->ksDataFormatWfx->DataFormat.SubFormat = KSDATAFORMAT_SUBTYPE_PCM; - pin->ksDataFormatWfx->DataFormat.Specifier = KSDATAFORMAT_SPECIFIER_WAVEFORMATEX; - - pin->frameSize = 0; /* Unknown until we instantiate pin */ - - /* Get the COMMUNICATION property */ - result = WdmGetPinPropertySimple( - parentFilter->handle, - pinId, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_COMMUNICATION, - &pin->communication, - sizeof(KSPIN_COMMUNICATION)); - if( result != paNoError ) - goto error; - - if( /*(pin->communication != KSPIN_COMMUNICATION_SOURCE) &&*/ - (pin->communication != KSPIN_COMMUNICATION_SINK) && - (pin->communication != KSPIN_COMMUNICATION_BOTH) ) - { - PA_DEBUG(("Not source/sink\n")); - result = paInvalidDevice; - goto error; - } - - /* Get dataflow information */ - result = WdmGetPinPropertySimple( - parentFilter->handle, - pinId, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_DATAFLOW, - &pin->dataFlow, - sizeof(KSPIN_DATAFLOW)); - - if( result != paNoError ) - goto error; - - /* Get the INTERFACE property list */ - result = WdmGetPinPropertyMulti( - parentFilter->handle, - pinId, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_INTERFACES, - &item); - - if( result != paNoError ) - goto error; - - identifier = (KSIDENTIFIER*)(item+1); - - /* Check that at least one interface is STANDARD_STREAMING */ - result = paUnanticipatedHostError; - for( i = 0; i < item->Count; i++ ) - { - if( !memcmp( (void*)&identifier[i].Set, (void*)&KSINTERFACESETID_Standard, sizeof( GUID ) ) && - ( identifier[i].Id == KSINTERFACE_STANDARD_STREAMING ) ) - { - result = paNoError; - break; - } - } - - if( result != paNoError ) - { - PA_DEBUG(("No standard streaming\n")); - goto error; - } - - /* Don't need interfaces any more */ - PaUtil_FreeMemory( item ); - item = NULL; - - /* Get the MEDIUM properties list */ - result = WdmGetPinPropertyMulti( - parentFilter->handle, - pinId, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_MEDIUMS, - &item); - - if( result != paNoError ) - goto error; - - identifier = (KSIDENTIFIER*)(item+1); /* Not actually necessary... */ - - /* Check that at least one medium is STANDARD_DEVIO */ - result = paUnanticipatedHostError; - for( i = 0; i < item->Count; i++ ) - { - if( !memcmp( (void*)&identifier[i].Set, (void*)&KSMEDIUMSETID_Standard, sizeof( GUID ) ) && - ( identifier[i].Id == KSMEDIUM_STANDARD_DEVIO ) ) - { - result = paNoError; - break; - } - } - - if( result != paNoError ) - { - PA_DEBUG(("No standard devio\n")); - goto error; - } - /* Don't need mediums any more */ - PaUtil_FreeMemory( item ); - item = NULL; - - /* Get DATARANGES */ - result = WdmGetPinPropertyMulti( - parentFilter->handle, - pinId, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_DATARANGES, - &pin->dataRangesItem); - - if( result != paNoError ) - goto error; - - pin->dataRanges = (KSDATARANGE*)(pin->dataRangesItem +1); - - /* Check that at least one datarange supports audio */ - result = paUnanticipatedHostError; - dataRange = pin->dataRanges; - pin->maxChannels = 0; - pin->bestSampleRate = 0; - pin->formats = 0; - for( i = 0; i <pin->dataRangesItem->Count; i++) - { - PA_DEBUG(("DR major format %x\n",*(unsigned long*)(&(dataRange->MajorFormat)))); - /* Check that subformat is WAVEFORMATEX, PCM or WILDCARD */ - if( IS_VALID_WAVEFORMATEX_GUID(&dataRange->SubFormat) || - !memcmp((void*)&dataRange->SubFormat, (void*)&KSDATAFORMAT_SUBTYPE_PCM, sizeof ( GUID ) ) || - ( !memcmp((void*)&dataRange->SubFormat, (void*)&KSDATAFORMAT_SUBTYPE_WILDCARD, sizeof ( GUID ) ) && - ( !memcmp((void*)&dataRange->MajorFormat, (void*)&KSDATAFORMAT_TYPE_AUDIO, sizeof ( GUID ) ) ) ) ) - { - result = paNoError; - /* Record the maximum possible channels with this pin */ - PA_DEBUG(("MaxChannel: %d\n",pin->maxChannels)); - if( (int)((KSDATARANGE_AUDIO*)dataRange)->MaximumChannels > pin->maxChannels ) - { - pin->maxChannels = ((KSDATARANGE_AUDIO*)dataRange)->MaximumChannels; - /*PA_DEBUG(("MaxChannel: %d\n",pin->maxChannels));*/ - } - /* Record the formats (bit depths) that are supported */ - if( ((KSDATARANGE_AUDIO*)dataRange)->MinimumBitsPerSample <= 16 ) - { - pin->formats |= paInt16; - PA_DEBUG(("Format 16 bit supported\n")); - } - if( ((KSDATARANGE_AUDIO*)dataRange)->MaximumBitsPerSample >= 24 ) - { - pin->formats |= paInt24; - PA_DEBUG(("Format 24 bit supported\n")); - } - if( ( pin->bestSampleRate != 48000) && - (((KSDATARANGE_AUDIO*)dataRange)->MaximumSampleFrequency >= 48000) && - (((KSDATARANGE_AUDIO*)dataRange)->MinimumSampleFrequency <= 48000) ) - { - pin->bestSampleRate = 48000; - PA_DEBUG(("48kHz supported\n")); - } - else if(( pin->bestSampleRate != 48000) && ( pin->bestSampleRate != 44100 ) && - (((KSDATARANGE_AUDIO*)dataRange)->MaximumSampleFrequency >= 44100) && - (((KSDATARANGE_AUDIO*)dataRange)->MinimumSampleFrequency <= 44100) ) - { - pin->bestSampleRate = 44100; - PA_DEBUG(("44.1kHz supported\n")); - } - else - { - pin->bestSampleRate = ((KSDATARANGE_AUDIO*)dataRange)->MaximumSampleFrequency; - } - } - dataRange = (KSDATARANGE*)( ((char*)dataRange) + dataRange->FormatSize); - } - - if( result != paNoError ) - goto error; - - /* Get instance information */ - result = WdmGetPinPropertySimple( - parentFilter->handle, - pinId, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_CINSTANCES, - &pin->instances, - sizeof(KSPIN_CINSTANCES)); - - if( result != paNoError ) - goto error; - - /* Success */ - *error = paNoError; - PA_DEBUG(("Pin created successfully\n")); - PA_LOGL_; - return pin; - -error: - /* - Error cleanup - */ - PaUtil_FreeMemory( item ); - if( pin ) - { - PaUtil_FreeMemory( pin->pinConnect ); - PaUtil_FreeMemory( pin->dataRangesItem ); - PaUtil_FreeMemory( pin ); - } - *error = result; - PA_LOGL_; - return NULL; -} - -/* -Safely free all resources associated with the pin -*/ -static void PinFree(PaWinWdmPin* pin) -{ - PA_LOGE_; - if( pin ) - { - PinClose(pin); - if( pin->pinConnect ) - { - PaUtil_FreeMemory( pin->pinConnect ); - } - if( pin->dataRangesItem ) - { - PaUtil_FreeMemory( pin->dataRangesItem ); - } - PaUtil_FreeMemory( pin ); - } - PA_LOGL_; -} - -/* -If the pin handle is open, close it -*/ -static void PinClose(PaWinWdmPin* pin) -{ - PA_LOGE_; - if( pin == NULL ) - { - PA_DEBUG(("Closing NULL pin!")); - PA_LOGL_; - return; - } - if( pin->handle != NULL ) - { - PinSetState( pin, KSSTATE_PAUSE ); - PinSetState( pin, KSSTATE_STOP ); - CloseHandle( pin->handle ); - pin->handle = NULL; - FilterRelease(pin->parentFilter); - } - PA_LOGL_; -} - -/* -Set the state of this (instantiated) pin -*/ -static PaError PinSetState(PaWinWdmPin* pin, KSSTATE state) -{ - PaError result; - - PA_LOGE_; - if( pin == NULL ) - return paInternalError; - if( pin->handle == NULL ) - return paInternalError; - - result = WdmSetPropertySimple( - pin->handle, - &KSPROPSETID_Connection, - KSPROPERTY_CONNECTION_STATE, - &state, - sizeof(state), - NULL, - 0); - PA_LOGL_; - return result; -} - -static PaError PinInstantiate(PaWinWdmPin* pin) -{ - PaError result; - unsigned long createResult; - KSALLOCATOR_FRAMING ksaf; - KSALLOCATOR_FRAMING_EX ksafex; - - PA_LOGE_; - - if( pin == NULL ) - return paInternalError; - if(!pin->pinConnect) - return paInternalError; - - FilterUse(pin->parentFilter); - - createResult = FunctionKsCreatePin( - pin->parentFilter->handle, - pin->pinConnect, - GENERIC_WRITE | GENERIC_READ, - &pin->handle - ); - - PA_DEBUG(("Pin create result = %x\n",createResult)); - if( createResult != ERROR_SUCCESS ) - { - FilterRelease(pin->parentFilter); - pin->handle = NULL; - return paInvalidDevice; - } - - result = WdmGetPropertySimple( - pin->handle, - &KSPROPSETID_Connection, - KSPROPERTY_CONNECTION_ALLOCATORFRAMING, - &ksaf, - sizeof(ksaf), - NULL, - 0); - - if( result != paNoError ) - { - result = WdmGetPropertySimple( - pin->handle, - &KSPROPSETID_Connection, - KSPROPERTY_CONNECTION_ALLOCATORFRAMING_EX, - &ksafex, - sizeof(ksafex), - NULL, - 0); - if( result == paNoError ) - { - pin->frameSize = ksafex.FramingItem[0].FramingRange.Range.MinFrameSize; - } - } - else - { - pin->frameSize = ksaf.FrameSize; - } - - PA_LOGL_; - - return paNoError; -} - -/* NOT USED -static PaError PinGetState(PaWinWdmPin* pin, KSSTATE* state) -{ - PaError result; - - if( state == NULL ) - return paInternalError; - if( pin == NULL ) - return paInternalError; - if( pin->handle == NULL ) - return paInternalError; - - result = WdmGetPropertySimple( - pin->handle, - KSPROPSETID_Connection, - KSPROPERTY_CONNECTION_STATE, - state, - sizeof(KSSTATE), - NULL, - 0); - - return result; -} -*/ -static PaError PinSetFormat(PaWinWdmPin* pin, const WAVEFORMATEX* format) -{ - unsigned long size; - void* newConnect; - - PA_LOGE_; - - if( pin == NULL ) - return paInternalError; - if( format == NULL ) - return paInternalError; - - size = GetWfexSize(format) + sizeof(KSPIN_CONNECT) + sizeof(KSDATAFORMAT_WAVEFORMATEX) - sizeof(WAVEFORMATEX); - - if( pin->pinConnectSize != size ) - { - newConnect = PaUtil_AllocateMemory( size ); - if( newConnect == NULL ) - return paInsufficientMemory; - memcpy( newConnect, (void*)pin->pinConnect, min(pin->pinConnectSize,size) ); - PaUtil_FreeMemory( pin->pinConnect ); - pin->pinConnect = (KSPIN_CONNECT*)newConnect; - pin->pinConnectSize = size; - pin->ksDataFormatWfx = (KSDATAFORMAT_WAVEFORMATEX*)((KSPIN_CONNECT*)newConnect + 1); - pin->ksDataFormatWfx->DataFormat.FormatSize = size - sizeof(KSPIN_CONNECT); - } - - memcpy( (void*)&(pin->ksDataFormatWfx->WaveFormatEx), format, GetWfexSize(format) ); - pin->ksDataFormatWfx->DataFormat.SampleSize = (unsigned short)(format->nChannels * (format->wBitsPerSample / 8)); - - PA_LOGL_; - - return paNoError; -} - -static PaError PinIsFormatSupported(PaWinWdmPin* pin, const WAVEFORMATEX* format) -{ - KSDATARANGE_AUDIO* dataRange; - unsigned long count; - GUID guid = DYNAMIC_GUID( DEFINE_WAVEFORMATEX_GUID(format->wFormatTag) ); - PaError result = paInvalidDevice; - - PA_LOGE_; - - if( format->wFormatTag == WAVE_FORMAT_EXTENSIBLE ) - { - guid = ((WAVEFORMATEXTENSIBLE*)format)->SubFormat; - } - dataRange = (KSDATARANGE_AUDIO*)pin->dataRanges; - for(count = 0; count<pin->dataRangesItem->Count; count++) - { - if(( !memcmp(&(dataRange->DataRange.MajorFormat),&KSDATAFORMAT_TYPE_AUDIO,sizeof(GUID)) ) || - ( !memcmp(&(dataRange->DataRange.MajorFormat),&KSDATAFORMAT_TYPE_WILDCARD,sizeof(GUID)) )) - { - /* This is an audio or wildcard datarange... */ - if(( !memcmp(&(dataRange->DataRange.SubFormat),&KSDATAFORMAT_SUBTYPE_WILDCARD,sizeof(GUID)) ) || - ( !memcmp(&(dataRange->DataRange.SubFormat),&guid,sizeof(GUID)) )) - { - if(( !memcmp(&(dataRange->DataRange.Specifier),&KSDATAFORMAT_SPECIFIER_WILDCARD,sizeof(GUID)) ) || - ( !memcmp(&(dataRange->DataRange.Specifier),&KSDATAFORMAT_SPECIFIER_WAVEFORMATEX,sizeof(GUID) ))) - { - - PA_DEBUG(("Pin:%x, DataRange:%d\n",(void*)pin,count)); - PA_DEBUG(("\tFormatSize:%d, SampleSize:%d\n",dataRange->DataRange.FormatSize,dataRange->DataRange.SampleSize)); - PA_DEBUG(("\tMaxChannels:%d\n",dataRange->MaximumChannels)); - PA_DEBUG(("\tBits:%d-%d\n",dataRange->MinimumBitsPerSample,dataRange->MaximumBitsPerSample)); - PA_DEBUG(("\tSampleRate:%d-%d\n",dataRange->MinimumSampleFrequency,dataRange->MaximumSampleFrequency)); - - if( dataRange->MaximumChannels < format->nChannels ) - { - result = paInvalidChannelCount; - continue; - } - if( dataRange->MinimumBitsPerSample > format->wBitsPerSample ) - { - result = paSampleFormatNotSupported; - continue; - } - if( dataRange->MaximumBitsPerSample < format->wBitsPerSample ) - { - result = paSampleFormatNotSupported; - continue; - } - if( dataRange->MinimumSampleFrequency > format->nSamplesPerSec ) - { - result = paInvalidSampleRate; - continue; - } - if( dataRange->MaximumSampleFrequency < format->nSamplesPerSec ) - { - result = paInvalidSampleRate; - continue; - } - /* Success! */ - PA_LOGL_; - return paNoError; - } - } - } - dataRange = (KSDATARANGE_AUDIO*)( ((char*)dataRange) + dataRange->DataRange.FormatSize); - } - - PA_LOGL_; - - return result; -} - -/** - * Create a new filter object - */ -static PaWinWdmFilter* FilterNew(TCHAR* filterName, TCHAR* friendlyName, PaError* error) -{ - PaWinWdmFilter* filter; - PaError result; - int pinId; - int valid; - - - /* Allocate the new filter object */ - filter = (PaWinWdmFilter*)PaUtil_AllocateMemory( sizeof(PaWinWdmFilter) ); - if( !filter ) - { - result = paInsufficientMemory; - goto error; - } - - /* Zero the filter object - done by AllocateMemory */ - /* memset( (void*)filter, 0, sizeof(PaWinWdmFilter) ); */ - - /* Copy the filter name */ - _tcsncpy(filter->filterName, filterName, MAX_PATH); - - /* Copy the friendly name */ - _tcsncpy(filter->friendlyName, friendlyName, MAX_PATH); - - /* Open the filter handle */ - result = FilterUse(filter); - if( result != paNoError ) - { - goto error; - } - - /* Get pin count */ - result = WdmGetPinPropertySimple - ( - filter->handle, - 0, - &KSPROPSETID_Pin, - KSPROPERTY_PIN_CTYPES, - &filter->pinCount, - sizeof(filter->pinCount) - ); - - if( result != paNoError) - { - goto error; - } - - /* Allocate pointer array to hold the pins */ - filter->pins = (PaWinWdmPin**)PaUtil_AllocateMemory( sizeof(PaWinWdmPin*) * filter->pinCount ); - if( !filter->pins ) - { - result = paInsufficientMemory; - goto error; - } - - /* Create all the pins we can */ - filter->maxInputChannels = 0; - filter->maxOutputChannels = 0; - filter->bestSampleRate = 0; - - valid = 0; - for(pinId = 0; pinId < filter->pinCount; pinId++) - { - /* Create the pin with this Id */ - PaWinWdmPin* newPin; - newPin = PinNew(filter, pinId, &result); - if( result == paInsufficientMemory ) - goto error; - if( newPin != NULL ) - { - filter->pins[pinId] = newPin; - valid = 1; - - /* Get the max output channel count */ - if(( newPin->dataFlow == KSPIN_DATAFLOW_IN ) && - (( newPin->communication == KSPIN_COMMUNICATION_SINK) || - ( newPin->communication == KSPIN_COMMUNICATION_BOTH))) - { - if(newPin->maxChannels > filter->maxOutputChannels) - filter->maxOutputChannels = newPin->maxChannels; - filter->formats |= newPin->formats; - } - /* Get the max input channel count */ - if(( newPin->dataFlow == KSPIN_DATAFLOW_OUT ) && - (( newPin->communication == KSPIN_COMMUNICATION_SINK) || - ( newPin->communication == KSPIN_COMMUNICATION_BOTH))) - { - if(newPin->maxChannels > filter->maxInputChannels) - filter->maxInputChannels = newPin->maxChannels; - filter->formats |= newPin->formats; - } - - if(newPin->bestSampleRate > filter->bestSampleRate) - { - filter->bestSampleRate = newPin->bestSampleRate; - } - } - } - - if(( filter->maxInputChannels == 0) && ( filter->maxOutputChannels == 0)) - { - /* No input or output... not valid */ - valid = 0; - } - - if( !valid ) - { - /* No valid pin was found on this filter so we destroy it */ - result = paDeviceUnavailable; - goto error; - } - - /* Close the filter handle for now - * It will be opened later when needed */ - FilterRelease(filter); - - *error = paNoError; - return filter; - -error: - /* - Error cleanup - */ - if( filter ) - { - for( pinId = 0; pinId < filter->pinCount; pinId++ ) - PinFree(filter->pins[pinId]); - PaUtil_FreeMemory( filter->pins ); - if( filter->handle ) - CloseHandle( filter->handle ); - PaUtil_FreeMemory( filter ); - } - *error = result; - return NULL; -} - -/** - * Free a previously created filter - */ -static void FilterFree(PaWinWdmFilter* filter) -{ - int pinId; - PA_LOGL_; - if( filter ) - { - for( pinId = 0; pinId < filter->pinCount; pinId++ ) - PinFree(filter->pins[pinId]); - PaUtil_FreeMemory( filter->pins ); - if( filter->handle ) - CloseHandle( filter->handle ); - PaUtil_FreeMemory( filter ); - } - PA_LOGE_; -} - -/** - * Reopen the filter handle if necessary so it can be used - **/ -static PaError FilterUse(PaWinWdmFilter* filter) -{ - assert( filter ); - - PA_LOGE_; - if( filter->handle == NULL ) - { - /* Open the filter */ - filter->handle = CreateFile( - filter->filterName, - GENERIC_READ | GENERIC_WRITE, - 0, - NULL, - OPEN_EXISTING, - FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED, - NULL); - - if( filter->handle == NULL ) - { - return paDeviceUnavailable; - } - } - filter->usageCount++; - PA_LOGL_; - return paNoError; -} - -/** - * Release the filter handle if nobody is using it - **/ -static void FilterRelease(PaWinWdmFilter* filter) -{ - assert( filter ); - assert( filter->usageCount > 0 ); - - PA_LOGE_; - filter->usageCount--; - if( filter->usageCount == 0 ) - { - if( filter->handle != NULL ) - { - CloseHandle( filter->handle ); - filter->handle = NULL; - } - } - PA_LOGL_; -} - -/** - * Create a render (playback) Pin using the supplied format - **/ -static PaWinWdmPin* FilterCreateRenderPin(PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error) -{ - PaError result; - PaWinWdmPin* pin; - - assert( filter ); - - pin = FilterFindViableRenderPin(filter,wfex,&result); - if(!pin) - { - goto error; - } - result = PinSetFormat(pin,wfex); - if( result != paNoError ) - { - goto error; - } - result = PinInstantiate(pin); - if( result != paNoError ) - { - goto error; - } - - *error = paNoError; - return pin; - -error: - *error = result; - return NULL; -} - -/** - * Find a pin that supports the given format - **/ -static PaWinWdmPin* FilterFindViableRenderPin(PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error) -{ - int pinId; - PaWinWdmPin* pin; - PaError result = paDeviceUnavailable; - *error = paNoError; - - assert( filter ); - - for( pinId = 0; pinId<filter->pinCount; pinId++ ) - { - pin = filter->pins[pinId]; - if( pin != NULL ) - { - if(( pin->dataFlow == KSPIN_DATAFLOW_IN ) && - (( pin->communication == KSPIN_COMMUNICATION_SINK) || - ( pin->communication == KSPIN_COMMUNICATION_BOTH))) - { - result = PinIsFormatSupported( pin, wfex ); - if( result == paNoError ) - { - return pin; - } - } - } - } - - *error = result; - return NULL; -} - -/** - * Check if there is a pin that should playback - * with the supplied format - **/ -static PaError FilterCanCreateRenderPin(PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex) -{ - PaWinWdmPin* pin; - PaError result; - - assert ( filter ); - - pin = FilterFindViableRenderPin(filter,wfex,&result); - /* result will be paNoError if pin found - * or else an error code indicating what is wrong with the format - **/ - return result; -} - -/** - * Create a capture (record) Pin using the supplied format - **/ -static PaWinWdmPin* FilterCreateCapturePin(PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error) -{ - PaError result; - PaWinWdmPin* pin; - - assert( filter ); - - pin = FilterFindViableCapturePin(filter,wfex,&result); - if(!pin) - { - goto error; - } - - result = PinSetFormat(pin,wfex); - if( result != paNoError ) - { - goto error; - } - - result = PinInstantiate(pin); - if( result != paNoError ) - { - goto error; - } - - *error = paNoError; - return pin; - -error: - *error = result; - return NULL; -} - -/** - * Find a capture pin that supports the given format - **/ -static PaWinWdmPin* FilterFindViableCapturePin(PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex, - PaError* error) -{ - int pinId; - PaWinWdmPin* pin; - PaError result = paDeviceUnavailable; - *error = paNoError; - - assert( filter ); - - for( pinId = 0; pinId<filter->pinCount; pinId++ ) - { - pin = filter->pins[pinId]; - if( pin != NULL ) - { - if(( pin->dataFlow == KSPIN_DATAFLOW_OUT ) && - (( pin->communication == KSPIN_COMMUNICATION_SINK) || - ( pin->communication == KSPIN_COMMUNICATION_BOTH))) - { - result = PinIsFormatSupported( pin, wfex ); - if( result == paNoError ) - { - return pin; - } - } - } - } - - *error = result; - return NULL; -} - -/** - * Check if there is a pin that should playback - * with the supplied format - **/ -static PaError FilterCanCreateCapturePin(PaWinWdmFilter* filter, - const WAVEFORMATEX* wfex) -{ - PaWinWdmPin* pin; - PaError result; - - assert ( filter ); - - pin = FilterFindViableCapturePin(filter,wfex,&result); - /* result will be paNoError if pin found - * or else an error code indicating what is wrong with the format - **/ - return result; -} - -/** - * Build the list of available filters - */ -static PaError BuildFilterList(PaWinWdmHostApiRepresentation* wdmHostApi) -{ - PaError result = paNoError; - HDEVINFO handle = NULL; - int device; - int invalidDevices; - int slot; - SP_DEVICE_INTERFACE_DATA interfaceData; - SP_DEVICE_INTERFACE_DATA aliasData; - SP_DEVINFO_DATA devInfoData; - int noError; - const int sizeInterface = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA) + (MAX_PATH * sizeof(WCHAR)); - unsigned char interfaceDetailsArray[sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA) + (MAX_PATH * sizeof(WCHAR))]; - SP_DEVICE_INTERFACE_DETAIL_DATA* devInterfaceDetails = (SP_DEVICE_INTERFACE_DETAIL_DATA*)interfaceDetailsArray; - TCHAR friendlyName[MAX_PATH]; - HKEY hkey; - DWORD sizeFriendlyName; - DWORD type; - PaWinWdmFilter* newFilter; - GUID* category = (GUID*)&KSCATEGORY_AUDIO; - GUID* alias_render = (GUID*)&KSCATEGORY_RENDER; - GUID* alias_capture = (GUID*)&KSCATEGORY_CAPTURE; - DWORD hasAlias; - - PA_LOGE_; - - devInterfaceDetails->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA); - - /* Open a handle to search for devices (filters) */ - handle = SetupDiGetClassDevs(category,NULL,NULL,DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); - if( handle == NULL ) - { - return paUnanticipatedHostError; - } - PA_DEBUG(("Setup called\n")); - - /* First let's count the number of devices so we can allocate a list */ - invalidDevices = 0; - for( device = 0;;device++ ) - { - interfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); - interfaceData.Reserved = 0; - aliasData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); - aliasData.Reserved = 0; - noError = SetupDiEnumDeviceInterfaces(handle,NULL,category,device,&interfaceData); - PA_DEBUG(("Enum called\n")); - if( !noError ) - break; /* No more devices */ - - /* Check this one has the render or capture alias */ - hasAlias = 0; - noError = SetupDiGetDeviceInterfaceAlias(handle,&interfaceData,alias_render,&aliasData); - PA_DEBUG(("noError = %d\n",noError)); - if(noError) - { - if(aliasData.Flags && (!(aliasData.Flags & SPINT_REMOVED))) - { - PA_DEBUG(("Device %d has render alias\n",device)); - hasAlias |= 1; /* Has render alias */ - } - else - { - PA_DEBUG(("Device %d has no render alias\n",device)); - } - } - noError = SetupDiGetDeviceInterfaceAlias(handle,&interfaceData,alias_capture,&aliasData); - if(noError) - { - if(aliasData.Flags && (!(aliasData.Flags & SPINT_REMOVED))) - { - PA_DEBUG(("Device %d has capture alias\n",device)); - hasAlias |= 2; /* Has capture alias */ - } - else - { - PA_DEBUG(("Device %d has no capture alias\n",device)); - } - } - if(!hasAlias) - invalidDevices++; /* This was not a valid capture or render audio device */ - - } - /* Remember how many there are */ - wdmHostApi->filterCount = device-invalidDevices; - - PA_DEBUG(("Interfaces found: %d\n",device-invalidDevices)); - - /* Now allocate the list of pointers to devices */ - wdmHostApi->filters = (PaWinWdmFilter**)PaUtil_AllocateMemory( sizeof(PaWinWdmFilter*) * device ); - if( !wdmHostApi->filters ) - { - if(handle != NULL) - SetupDiDestroyDeviceInfoList(handle); - return paInsufficientMemory; - } - - /* Now create filter objects for each interface found */ - slot = 0; - for( device = 0;;device++ ) - { - interfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); - interfaceData.Reserved = 0; - aliasData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); - aliasData.Reserved = 0; - devInfoData.cbSize = sizeof(SP_DEVINFO_DATA); - devInfoData.Reserved = 0; - - noError = SetupDiEnumDeviceInterfaces(handle,NULL,category,device,&interfaceData); - if( !noError ) - break; /* No more devices */ - - /* Check this one has the render or capture alias */ - hasAlias = 0; - noError = SetupDiGetDeviceInterfaceAlias(handle,&interfaceData,alias_render,&aliasData); - if(noError) - { - if(aliasData.Flags && (!(aliasData.Flags & SPINT_REMOVED))) - { - PA_DEBUG(("Device %d has render alias\n",device)); - hasAlias |= 1; /* Has render alias */ - } - } - noError = SetupDiGetDeviceInterfaceAlias(handle,&interfaceData,alias_capture,&aliasData); - if(noError) - { - if(aliasData.Flags && (!(aliasData.Flags & SPINT_REMOVED))) - { - PA_DEBUG(("Device %d has capture alias\n",device)); - hasAlias |= 2; /* Has capture alias */ - } - } - if(!hasAlias) - continue; /* This was not a valid capture or render audio device */ - - noError = SetupDiGetDeviceInterfaceDetail(handle,&interfaceData,devInterfaceDetails,sizeInterface,NULL,&devInfoData); - if( noError ) - { - /* Try to get the "friendly name" for this interface */ - sizeFriendlyName = sizeof(friendlyName); - /* Fix contributed by Ben Allison - * Removed KEY_SET_VALUE from flags on following call - * as its causes failure when running without admin rights - * and it was not required */ - hkey=SetupDiOpenDeviceInterfaceRegKey(handle,&interfaceData,0,KEY_QUERY_VALUE); - if(hkey!=INVALID_HANDLE_VALUE) - { - noError = RegQueryValueEx(hkey,TEXT("FriendlyName"),0,&type,(BYTE*)friendlyName,&sizeFriendlyName); - if( noError == ERROR_SUCCESS ) - { - PA_DEBUG(("Interface %d, Name: %s\n",device,friendlyName)); - RegCloseKey(hkey); - } - else - { - friendlyName[0] = 0; - } - } - newFilter = FilterNew(devInterfaceDetails->DevicePath,friendlyName,&result); - if( result == paNoError ) - { - PA_DEBUG(("Filter created\n")); - wdmHostApi->filters[slot] = newFilter; - slot++; - } - else - { - PA_DEBUG(("Filter NOT created\n")); - /* As there are now less filters than we initially thought - * we must reduce the count by one */ - wdmHostApi->filterCount--; - } - } - } - - /* Clean up */ - if(handle != NULL) - SetupDiDestroyDeviceInfoList(handle); - - return paNoError; -} - -PaError PaWinWdm_Initialize( PaUtilHostApiRepresentation **hostApi, PaHostApiIndex hostApiIndex ) -{ - PaError result = paNoError; - int i, deviceCount; - PaWinWdmHostApiRepresentation *wdmHostApi; - PaWinWdmDeviceInfo *deviceInfoArray; - PaWinWdmFilter* pFilter; - PaWinWdmDeviceInfo *wdmDeviceInfo; - PaDeviceInfo *deviceInfo; - - PA_LOGE_; - - /* - Attempt to load the KSUSER.DLL without which we cannot create pins - We will unload this on termination - */ - if(DllKsUser == NULL) - { - DllKsUser = LoadLibrary(TEXT("ksuser.dll")); - if(DllKsUser == NULL) - goto error; - } - - FunctionKsCreatePin = (KSCREATEPIN*)GetProcAddress(DllKsUser, "KsCreatePin"); - if(FunctionKsCreatePin == NULL) - goto error; - - wdmHostApi = (PaWinWdmHostApiRepresentation*)PaUtil_AllocateMemory( sizeof(PaWinWdmHostApiRepresentation) ); - if( !wdmHostApi ) - { - result = paInsufficientMemory; - goto error; - } - - wdmHostApi->allocations = PaUtil_CreateAllocationGroup(); - if( !wdmHostApi->allocations ) - { - result = paInsufficientMemory; - goto error; - } - - result = BuildFilterList( wdmHostApi ); - if( result != paNoError ) - { - goto error; - } - deviceCount = wdmHostApi->filterCount; - - *hostApi = &wdmHostApi->inheritedHostApiRep; - (*hostApi)->info.structVersion = 1; - (*hostApi)->info.type = paWDMKS; - (*hostApi)->info.name = "Windows WDM-KS"; - (*hostApi)->info.defaultInputDevice = paNoDevice; - (*hostApi)->info.defaultOutputDevice = paNoDevice; - - if( deviceCount > 0 ) - { - (*hostApi)->deviceInfos = (PaDeviceInfo**)PaUtil_GroupAllocateMemory( - wdmHostApi->allocations, sizeof(PaWinWdmDeviceInfo*) * deviceCount ); - if( !(*hostApi)->deviceInfos ) - { - result = paInsufficientMemory; - goto error; - } - - /* allocate all device info structs in a contiguous block */ - deviceInfoArray = (PaWinWdmDeviceInfo*)PaUtil_GroupAllocateMemory( - wdmHostApi->allocations, sizeof(PaWinWdmDeviceInfo) * deviceCount ); - if( !deviceInfoArray ) - { - result = paInsufficientMemory; - goto error; - } - - for( i=0; i < deviceCount; ++i ) - { - wdmDeviceInfo = &deviceInfoArray[i]; - deviceInfo = &wdmDeviceInfo->inheritedDeviceInfo; - pFilter = wdmHostApi->filters[i]; - if( pFilter == NULL ) - continue; - wdmDeviceInfo->filter = pFilter; - deviceInfo->structVersion = 2; - deviceInfo->hostApi = hostApiIndex; - deviceInfo->name = (char*)pFilter->friendlyName; - PA_DEBUG(("Device found name: %s\n",(char*)pFilter->friendlyName)); - deviceInfo->maxInputChannels = pFilter->maxInputChannels; - if(deviceInfo->maxInputChannels > 0) - { - /* Set the default input device to the first device we find with - * more than zero input channels - **/ - if((*hostApi)->info.defaultInputDevice == paNoDevice) - { - (*hostApi)->info.defaultInputDevice = i; - } - } - - deviceInfo->maxOutputChannels = pFilter->maxOutputChannels; - if(deviceInfo->maxOutputChannels > 0) - { - /* Set the default output device to the first device we find with - * more than zero output channels - **/ - if((*hostApi)->info.defaultOutputDevice == paNoDevice) - { - (*hostApi)->info.defaultOutputDevice = i; - } - } - - /* These low values are not very useful because - * a) The lowest latency we end up with can depend on many factors such - * as the device buffer sizes/granularities, sample rate, channels and format - * b) We cannot know the device buffer sizes until we try to open/use it at - * a particular setting - * So: we give 512x48000Hz frames as the default low input latency - **/ - deviceInfo->defaultLowInputLatency = (512.0/48000.0); - deviceInfo->defaultLowOutputLatency = (512.0/48000.0); - deviceInfo->defaultHighInputLatency = (4096.0/48000.0); - deviceInfo->defaultHighOutputLatency = (4096.0/48000.0); - deviceInfo->defaultSampleRate = (double)(pFilter->bestSampleRate); - - (*hostApi)->deviceInfos[i] = deviceInfo; - } - } - - (*hostApi)->info.deviceCount = deviceCount; - - (*hostApi)->Terminate = Terminate; - (*hostApi)->OpenStream = OpenStream; - (*hostApi)->IsFormatSupported = IsFormatSupported; - - PaUtil_InitializeStreamInterface( &wdmHostApi->callbackStreamInterface, CloseStream, StartStream, - StopStream, AbortStream, IsStreamStopped, IsStreamActive, - GetStreamTime, GetStreamCpuLoad, - PaUtil_DummyRead, PaUtil_DummyWrite, - PaUtil_DummyGetReadAvailable, PaUtil_DummyGetWriteAvailable ); - - PaUtil_InitializeStreamInterface( &wdmHostApi->blockingStreamInterface, CloseStream, StartStream, - StopStream, AbortStream, IsStreamStopped, IsStreamActive, - GetStreamTime, PaUtil_DummyGetCpuLoad, - ReadStream, WriteStream, GetStreamReadAvailable, GetStreamWriteAvailable ); - - PA_LOGL_; - return result; - -error: - if( DllKsUser != NULL ) - { - FreeLibrary( DllKsUser ); - DllKsUser = NULL; - } - - if( wdmHostApi ) - { - PaUtil_FreeMemory( wdmHostApi->filters ); - if( wdmHostApi->allocations ) - { - PaUtil_FreeAllAllocations( wdmHostApi->allocations ); - PaUtil_DestroyAllocationGroup( wdmHostApi->allocations ); - } - PaUtil_FreeMemory( wdmHostApi ); - } - PA_LOGL_; - return result; -} - - -static void Terminate( struct PaUtilHostApiRepresentation *hostApi ) -{ - PaWinWdmHostApiRepresentation *wdmHostApi = (PaWinWdmHostApiRepresentation*)hostApi; - int i; - PA_LOGE_; - - if( wdmHostApi->filters ) - { - for( i=0; i<wdmHostApi->filterCount; i++) - { - if( wdmHostApi->filters[i] != NULL ) - { - FilterFree( wdmHostApi->filters[i] ); - wdmHostApi->filters[i] = NULL; - } - } - } - PaUtil_FreeMemory( wdmHostApi->filters ); - if( wdmHostApi->allocations ) - { - PaUtil_FreeAllAllocations( wdmHostApi->allocations ); - PaUtil_DestroyAllocationGroup( wdmHostApi->allocations ); - } - PaUtil_FreeMemory( wdmHostApi ); - PA_LOGL_; -} - -static void FillWFEXT( WAVEFORMATEXTENSIBLE* pwfext, PaSampleFormat sampleFormat, double sampleRate, int channelCount) -{ - PA_LOGE_; - PA_DEBUG(( "sampleFormat = %lx\n" , sampleFormat )); - PA_DEBUG(( "sampleRate = %f\n" , sampleRate )); - PA_DEBUG(( "chanelCount = %d\n", channelCount )); - - pwfext->Format.wFormatTag = WAVE_FORMAT_EXTENSIBLE; - pwfext->Format.nChannels = channelCount; - pwfext->Format.nSamplesPerSec = (int)sampleRate; - if(channelCount == 1) - pwfext->dwChannelMask = KSAUDIO_SPEAKER_DIRECTOUT; - else - pwfext->dwChannelMask = KSAUDIO_SPEAKER_STEREO; - if(sampleFormat == paFloat32) - { - pwfext->Format.nBlockAlign = channelCount * 4; - pwfext->Format.wBitsPerSample = 32; - pwfext->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX); - pwfext->Samples.wValidBitsPerSample = 32; - pwfext->SubFormat = KSDATAFORMAT_SUBTYPE_IEEE_FLOAT; - } - else if(sampleFormat == paInt32) - { - pwfext->Format.nBlockAlign = channelCount * 4; - pwfext->Format.wBitsPerSample = 32; - pwfext->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX); - pwfext->Samples.wValidBitsPerSample = 32; - pwfext->SubFormat = KSDATAFORMAT_SUBTYPE_PCM; - } - else if(sampleFormat == paInt24) - { - pwfext->Format.nBlockAlign = channelCount * 3; - pwfext->Format.wBitsPerSample = 24; - pwfext->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX); - pwfext->Samples.wValidBitsPerSample = 24; - pwfext->SubFormat = KSDATAFORMAT_SUBTYPE_PCM; - } - else if(sampleFormat == paInt16) - { - pwfext->Format.nBlockAlign = channelCount * 2; - pwfext->Format.wBitsPerSample = 16; - pwfext->Format.cbSize = sizeof(WAVEFORMATEXTENSIBLE)-sizeof(WAVEFORMATEX); - pwfext->Samples.wValidBitsPerSample = 16; - pwfext->SubFormat = KSDATAFORMAT_SUBTYPE_PCM; - } - pwfext->Format.nAvgBytesPerSec = pwfext->Format.nSamplesPerSec * pwfext->Format.nBlockAlign; - - PA_LOGL_; -} - -static PaError IsFormatSupported( struct PaUtilHostApiRepresentation *hostApi, - const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate ) -{ - int inputChannelCount, outputChannelCount; - PaSampleFormat inputSampleFormat, outputSampleFormat; - PaWinWdmHostApiRepresentation *wdmHostApi = (PaWinWdmHostApiRepresentation*)hostApi; - PaWinWdmFilter* pFilter; - int result = paFormatIsSupported; - WAVEFORMATEXTENSIBLE wfx; - - PA_LOGE_; - - if( inputParameters ) - { - inputChannelCount = inputParameters->channelCount; - inputSampleFormat = inputParameters->sampleFormat; - - /* all standard sample formats are supported by the buffer adapter, - this implementation doesn't support any custom sample formats */ - if( inputSampleFormat & paCustomFormat ) - return paSampleFormatNotSupported; - - /* unless alternate device specification is supported, reject the use of - paUseHostApiSpecificDeviceSpecification */ - - if( inputParameters->device == paUseHostApiSpecificDeviceSpecification ) - return paInvalidDevice; - - /* check that input device can support inputChannelCount */ - if( inputChannelCount > hostApi->deviceInfos[ inputParameters->device ]->maxInputChannels ) - return paInvalidChannelCount; - - /* validate inputStreamInfo */ - if( inputParameters->hostApiSpecificStreamInfo ) - return paIncompatibleHostApiSpecificStreamInfo; /* this implementation doesn't use custom stream info */ - - /* Check that the input format is supported */ - FillWFEXT(&wfx,paInt16,sampleRate,inputChannelCount); - - pFilter = wdmHostApi->filters[inputParameters->device]; - result = FilterCanCreateCapturePin(pFilter,(const WAVEFORMATEX*)&wfx); - if( result != paNoError ) - { - /* Try a WAVE_FORMAT_PCM instead */ - wfx.Format.wFormatTag = WAVE_FORMAT_PCM; - wfx.Format.cbSize = 0; - wfx.Samples.wValidBitsPerSample = 0; - wfx.dwChannelMask = 0; - wfx.SubFormat = GUID_NULL; - result = FilterCanCreateCapturePin(pFilter,(const WAVEFORMATEX*)&wfx); - if( result != paNoError ) - return result; - } - } - else - { - inputChannelCount = 0; - } - - if( outputParameters ) - { - outputChannelCount = outputParameters->channelCount; - outputSampleFormat = outputParameters->sampleFormat; - - /* all standard sample formats are supported by the buffer adapter, - this implementation doesn't support any custom sample formats */ - if( outputSampleFormat & paCustomFormat ) - return paSampleFormatNotSupported; - - /* unless alternate device specification is supported, reject the use of - paUseHostApiSpecificDeviceSpecification */ - - if( outputParameters->device == paUseHostApiSpecificDeviceSpecification ) - return paInvalidDevice; - - /* check that output device can support outputChannelCount */ - if( outputChannelCount > hostApi->deviceInfos[ outputParameters->device ]->maxOutputChannels ) - return paInvalidChannelCount; - - /* validate outputStreamInfo */ - if( outputParameters->hostApiSpecificStreamInfo ) - return paIncompatibleHostApiSpecificStreamInfo; /* this implementation doesn't use custom stream info */ - - /* Check that the output format is supported */ - FillWFEXT(&wfx,paInt16,sampleRate,outputChannelCount); - - pFilter = wdmHostApi->filters[outputParameters->device]; - result = FilterCanCreateRenderPin(pFilter,(const WAVEFORMATEX*)&wfx); - if( result != paNoError ) - { - /* Try a WAVE_FORMAT_PCM instead */ - wfx.Format.wFormatTag = WAVE_FORMAT_PCM; - wfx.Format.cbSize = 0; - wfx.Samples.wValidBitsPerSample = 0; - wfx.dwChannelMask = 0; - wfx.SubFormat = GUID_NULL; - result = FilterCanCreateRenderPin(pFilter,(const WAVEFORMATEX*)&wfx); - if( result != paNoError ) - return result; - } - - } - else - { - outputChannelCount = 0; - } - - /* - IMPLEMENT ME: - - - if a full duplex stream is requested, check that the combination - of input and output parameters is supported if necessary - - - check that the device supports sampleRate - - Because the buffer adapter handles conversion between all standard - sample formats, the following checks are only required if paCustomFormat - is implemented, or under some other unusual conditions. - - - check that input device can support inputSampleFormat, or that - we have the capability to convert from inputSampleFormat to - a native format - - - check that output device can support outputSampleFormat, or that - we have the capability to convert from outputSampleFormat to - a native format - */ - if((inputChannelCount == 0)&&(outputChannelCount == 0)) - result = paSampleFormatNotSupported; /* Not right error */ - - PA_LOGL_; - return result; -} - -/* see pa_hostapi.h for a list of validity guarantees made about OpenStream parameters */ - -static PaError OpenStream( struct PaUtilHostApiRepresentation *hostApi, - PaStream** s, - const PaStreamParameters *inputParameters, - const PaStreamParameters *outputParameters, - double sampleRate, - unsigned long framesPerBuffer, - PaStreamFlags streamFlags, - PaStreamCallback *streamCallback, - void *userData ) -{ - PaError result = paNoError; - PaWinWdmHostApiRepresentation *wdmHostApi = (PaWinWdmHostApiRepresentation*)hostApi; - PaWinWdmStream *stream = 0; - /* unsigned long framesPerHostBuffer; these may not be equivalent for all implementations */ - PaSampleFormat inputSampleFormat, outputSampleFormat; - PaSampleFormat hostInputSampleFormat, hostOutputSampleFormat; - int userInputChannels,userOutputChannels; - int size; - PaWinWdmFilter* pFilter; - WAVEFORMATEXTENSIBLE wfx; - - PA_LOGE_; - PA_DEBUG(("OpenStream:sampleRate = %f\n",sampleRate)); - PA_DEBUG(("OpenStream:framesPerBuffer = %lu\n",framesPerBuffer)); - - if( inputParameters ) - { - userInputChannels = inputParameters->channelCount; - inputSampleFormat = inputParameters->sampleFormat; - - /* unless alternate device specification is supported, reject the use of - paUseHostApiSpecificDeviceSpecification */ - - if( inputParameters->device == paUseHostApiSpecificDeviceSpecification ) - return paInvalidDevice; - - /* check that input device can support stream->userInputChannels */ - if( userInputChannels > hostApi->deviceInfos[ inputParameters->device ]->maxInputChannels ) - return paInvalidChannelCount; - - /* validate inputStreamInfo */ - if( inputParameters->hostApiSpecificStreamInfo ) - return paIncompatibleHostApiSpecificStreamInfo; /* this implementation doesn't use custom stream info */ - - } - else - { - userInputChannels = 0; - inputSampleFormat = hostInputSampleFormat = paInt16; /* Surpress 'uninitialised var' warnings. */ - } - - if( outputParameters ) - { - userOutputChannels = outputParameters->channelCount; - outputSampleFormat = outputParameters->sampleFormat; - - /* unless alternate device specification is supported, reject the use of - paUseHostApiSpecificDeviceSpecification */ - - if( outputParameters->device == paUseHostApiSpecificDeviceSpecification ) - return paInvalidDevice; - - /* check that output device can support stream->userInputChannels */ - if( userOutputChannels > hostApi->deviceInfos[ outputParameters->device ]->maxOutputChannels ) - return paInvalidChannelCount; - - /* validate outputStreamInfo */ - if( outputParameters->hostApiSpecificStreamInfo ) - return paIncompatibleHostApiSpecificStreamInfo; /* this implementation doesn't use custom stream info */ - - } - else - { - userOutputChannels = 0; - outputSampleFormat = hostOutputSampleFormat = paInt16; /* Surpress 'uninitialized var' warnings. */ - } - - /* validate platform specific flags */ - if( (streamFlags & paPlatformSpecificFlags) != 0 ) - return paInvalidFlag; /* unexpected platform specific flag */ - - stream = (PaWinWdmStream*)PaUtil_AllocateMemory( sizeof(PaWinWdmStream) ); - if( !stream ) - { - result = paInsufficientMemory; - goto error; - } - /* Zero the stream object */ - /* memset((void*)stream,0,sizeof(PaWinWdmStream)); */ - - if( streamCallback ) - { - PaUtil_InitializeStreamRepresentation( &stream->streamRepresentation, - &wdmHostApi->callbackStreamInterface, streamCallback, userData ); - } - else - { - PaUtil_InitializeStreamRepresentation( &stream->streamRepresentation, - &wdmHostApi->blockingStreamInterface, streamCallback, userData ); - } - - PaUtil_InitializeCpuLoadMeasurer( &stream->cpuLoadMeasurer, sampleRate ); - - /* Instantiate the input pin if necessary */ - if(userInputChannels > 0) - { - result = paSampleFormatNotSupported; - pFilter = wdmHostApi->filters[inputParameters->device]; - stream->userInputChannels = userInputChannels; - - if(((inputSampleFormat & ~paNonInterleaved) & pFilter->formats) != 0) - { /* inputSampleFormat is supported, so try to use it */ - hostInputSampleFormat = inputSampleFormat; - FillWFEXT(&wfx, hostInputSampleFormat, sampleRate, stream->userInputChannels); - stream->bytesPerInputFrame = wfx.Format.nBlockAlign; - stream->recordingPin = FilterCreateCapturePin(pFilter, (const WAVEFORMATEX*)&wfx, &result); - stream->deviceInputChannels = stream->userInputChannels; - } - - if(result != paNoError) - { /* Search through all PaSampleFormats to find one that works */ - hostInputSampleFormat = paFloat32; - - do { - FillWFEXT(&wfx, hostInputSampleFormat, sampleRate, stream->userInputChannels); - stream->bytesPerInputFrame = wfx.Format.nBlockAlign; - stream->recordingPin = FilterCreateCapturePin(pFilter, (const WAVEFORMATEX*)&wfx, &result); - stream->deviceInputChannels = stream->userInputChannels; - - if(stream->recordingPin == NULL) result = paSampleFormatNotSupported; - if(result != paNoError) hostInputSampleFormat <<= 1; - } - while(result != paNoError && hostInputSampleFormat <= paUInt8); - } - - if(result != paNoError) - { /* None of the PaSampleFormats worked. Set the hostInputSampleFormat to the best fit - * and try a PCM format. - **/ - hostInputSampleFormat = - PaUtil_SelectClosestAvailableFormat( pFilter->formats, inputSampleFormat ); - - /* Try a WAVE_FORMAT_PCM instead */ - wfx.Format.wFormatTag = WAVE_FORMAT_PCM; - wfx.Format.cbSize = 0; - wfx.Samples.wValidBitsPerSample = 0; - wfx.dwChannelMask = 0; - wfx.SubFormat = GUID_NULL; - stream->recordingPin = FilterCreateCapturePin(pFilter,(const WAVEFORMATEX*)&wfx,&result); - if(stream->recordingPin == NULL) result = paSampleFormatNotSupported; - } - - if( result != paNoError ) - { - /* Some or all KS devices can only handle the exact number of channels - * they specify. But PortAudio clients expect to be able to - * at least specify mono I/O on a multi-channel device - * If this is the case, then we will do the channel mapping internally - **/ - if( stream->userInputChannels < pFilter->maxInputChannels ) - { - FillWFEXT(&wfx,hostInputSampleFormat,sampleRate,pFilter->maxInputChannels); - stream->bytesPerInputFrame = wfx.Format.nBlockAlign; - stream->recordingPin = FilterCreateCapturePin(pFilter,(const WAVEFORMATEX*)&wfx,&result); - stream->deviceInputChannels = pFilter->maxInputChannels; - - if( result != paNoError ) - { - /* Try a WAVE_FORMAT_PCM instead */ - wfx.Format.wFormatTag = WAVE_FORMAT_PCM; - wfx.Format.cbSize = 0; - wfx.Samples.wValidBitsPerSample = 0; - wfx.dwChannelMask = 0; - wfx.SubFormat = GUID_NULL; - stream->recordingPin = FilterCreateCapturePin(pFilter,(const WAVEFORMATEX*)&wfx,&result); - } - } - } - - if(stream->recordingPin == NULL) - { - goto error; - } - - switch(hostInputSampleFormat) - { - case paInt16: stream->inputSampleSize = 2; break; - case paInt24: stream->inputSampleSize = 3; break; - case paInt32: - case paFloat32: stream->inputSampleSize = 4; break; - } - - stream->recordingPin->frameSize /= stream->bytesPerInputFrame; - PA_DEBUG(("Pin output frames: %d\n",stream->recordingPin->frameSize)); - } - else - { - stream->recordingPin = NULL; - stream->bytesPerInputFrame = 0; - } - - /* Instantiate the output pin if necessary */ - if(userOutputChannels > 0) - { - result = paSampleFormatNotSupported; - pFilter = wdmHostApi->filters[outputParameters->device]; - stream->userOutputChannels = userOutputChannels; - - if(((outputSampleFormat & ~paNonInterleaved) & pFilter->formats) != 0) - { - hostOutputSampleFormat = outputSampleFormat; - FillWFEXT(&wfx,hostOutputSampleFormat,sampleRate,stream->userOutputChannels); - stream->bytesPerOutputFrame = wfx.Format.nBlockAlign; - stream->playbackPin = FilterCreateRenderPin(pFilter,(WAVEFORMATEX*)&wfx,&result); - stream->deviceOutputChannels = stream->userOutputChannels; - } - - if(result != paNoError) - { - hostOutputSampleFormat = paFloat32; - - do { - FillWFEXT(&wfx,hostOutputSampleFormat,sampleRate,stream->userOutputChannels); - stream->bytesPerOutputFrame = wfx.Format.nBlockAlign; - stream->playbackPin = FilterCreateRenderPin(pFilter,(WAVEFORMATEX*)&wfx,&result); - stream->deviceOutputChannels = stream->userOutputChannels; - - if(stream->playbackPin == NULL) result = paSampleFormatNotSupported; - if(result != paNoError) hostOutputSampleFormat <<= 1; - } - while(result != paNoError && hostOutputSampleFormat <= paUInt8); - } - - if(result != paNoError) - { - hostOutputSampleFormat = - PaUtil_SelectClosestAvailableFormat( pFilter->formats, outputSampleFormat ); - - /* Try a WAVE_FORMAT_PCM instead */ - wfx.Format.wFormatTag = WAVE_FORMAT_PCM; - wfx.Format.cbSize = 0; - wfx.Samples.wValidBitsPerSample = 0; - wfx.dwChannelMask = 0; - wfx.SubFormat = GUID_NULL; - stream->playbackPin = FilterCreateRenderPin(pFilter,(WAVEFORMATEX*)&wfx,&result); - if(stream->playbackPin == NULL) result = paSampleFormatNotSupported; - } - - if( result != paNoError ) - { - /* Some or all KS devices can only handle the exact number of channels - * they specify. But PortAudio clients expect to be able to - * at least specify mono I/O on a multi-channel device - * If this is the case, then we will do the channel mapping internally - **/ - if( stream->userOutputChannels < pFilter->maxOutputChannels ) - { - FillWFEXT(&wfx,hostOutputSampleFormat,sampleRate,pFilter->maxOutputChannels); - stream->bytesPerOutputFrame = wfx.Format.nBlockAlign; - stream->playbackPin = FilterCreateRenderPin(pFilter,(const WAVEFORMATEX*)&wfx,&result); - stream->deviceOutputChannels = pFilter->maxOutputChannels; - if( result != paNoError ) - { - /* Try a WAVE_FORMAT_PCM instead */ - wfx.Format.wFormatTag = WAVE_FORMAT_PCM; - wfx.Format.cbSize = 0; - wfx.Samples.wValidBitsPerSample = 0; - wfx.dwChannelMask = 0; - wfx.SubFormat = GUID_NULL; - stream->playbackPin = FilterCreateRenderPin(pFilter,(const WAVEFORMATEX*)&wfx,&result); - } - } - } - - if(stream->playbackPin == NULL) - { - goto error; - } - - switch(hostOutputSampleFormat) - { - case paInt16: stream->outputSampleSize = 2; break; - case paInt24: stream->outputSampleSize = 3; break; - case paInt32: - case paFloat32: stream->outputSampleSize = 4; break; - } - - stream->playbackPin->frameSize /= stream->bytesPerOutputFrame; - PA_DEBUG(("Pin output frames: %d\n",stream->playbackPin->frameSize)); - } - else - { - stream->playbackPin = NULL; - stream->bytesPerOutputFrame = 0; - } - - /* Calculate the framesPerHostXxxxBuffer size based upon the suggested latency values */ - - /* Record the buffer length */ - if(inputParameters) - { - /* Calculate the frames from the user's value - add a bit to round up */ - stream->framesPerHostIBuffer = (unsigned long)((inputParameters->suggestedLatency*sampleRate)+0.0001); - if(stream->framesPerHostIBuffer > (unsigned long)sampleRate) - { /* Upper limit is 1 second */ - stream->framesPerHostIBuffer = (unsigned long)sampleRate; - } - else if(stream->framesPerHostIBuffer < stream->recordingPin->frameSize) - { - stream->framesPerHostIBuffer = stream->recordingPin->frameSize; - } - PA_DEBUG(("Input frames chosen:%ld\n",stream->framesPerHostIBuffer)); - } - - if(outputParameters) - { - /* Calculate the frames from the user's value - add a bit to round up */ - stream->framesPerHostOBuffer = (unsigned long)((outputParameters->suggestedLatency*sampleRate)+0.0001); - if(stream->framesPerHostOBuffer > (unsigned long)sampleRate) - { /* Upper limit is 1 second */ - stream->framesPerHostOBuffer = (unsigned long)sampleRate; - } - else if(stream->framesPerHostOBuffer < stream->playbackPin->frameSize) - { - stream->framesPerHostOBuffer = stream->playbackPin->frameSize; - } - PA_DEBUG(("Output frames chosen:%ld\n",stream->framesPerHostOBuffer)); - } - - /* Host buffer size is bounded to the largest of the input and output - frame sizes */ - - result = PaUtil_InitializeBufferProcessor( &stream->bufferProcessor, - stream->userInputChannels, inputSampleFormat, hostInputSampleFormat, - stream->userOutputChannels, outputSampleFormat, hostOutputSampleFormat, - sampleRate, streamFlags, framesPerBuffer, - max(stream->framesPerHostOBuffer,stream->framesPerHostIBuffer), - paUtilBoundedHostBufferSize, - streamCallback, userData ); - if( result != paNoError ) - goto error; - - stream->streamRepresentation.streamInfo.inputLatency = - ((double)stream->framesPerHostIBuffer) / sampleRate; - stream->streamRepresentation.streamInfo.outputLatency = - ((double)stream->framesPerHostOBuffer) / sampleRate; - stream->streamRepresentation.streamInfo.sampleRate = sampleRate; - - PA_DEBUG(("BytesPerInputFrame = %d\n",stream->bytesPerInputFrame)); - PA_DEBUG(("BytesPerOutputFrame = %d\n",stream->bytesPerOutputFrame)); - - /* Allocate all the buffers for host I/O */ - size = 2 * (stream->framesPerHostIBuffer*stream->bytesPerInputFrame + stream->framesPerHostOBuffer*stream->bytesPerOutputFrame); - PA_DEBUG(("Buffer size = %d\n",size)); - stream->hostBuffer = (char*)PaUtil_AllocateMemory(size); - PA_DEBUG(("Buffer allocated\n")); - if( !stream->hostBuffer ) - { - PA_DEBUG(("Cannot allocate host buffer!\n")); - result = paInsufficientMemory; - goto error; - } - PA_DEBUG(("Buffer start = %p\n",stream->hostBuffer)); - /* memset(stream->hostBuffer,0,size); */ - - /* Set up the packets */ - stream->events[0] = CreateEvent(NULL, FALSE, FALSE, NULL); - ResetEvent(stream->events[0]); /* Record buffer 1 */ - stream->events[1] = CreateEvent(NULL, FALSE, FALSE, NULL); - ResetEvent(stream->events[1]); /* Record buffer 2 */ - stream->events[2] = CreateEvent(NULL, FALSE, FALSE, NULL); - ResetEvent(stream->events[2]); /* Play buffer 1 */ - stream->events[3] = CreateEvent(NULL, FALSE, FALSE, NULL); - ResetEvent(stream->events[3]); /* Play buffer 2 */ - stream->events[4] = CreateEvent(NULL, FALSE, FALSE, NULL); - ResetEvent(stream->events[4]); /* Abort event */ - if(stream->userInputChannels > 0) - { - DATAPACKET *p = &(stream->packets[0]); - p->Signal.hEvent = stream->events[0]; - p->Header.Data = stream->hostBuffer; - p->Header.FrameExtent = stream->framesPerHostIBuffer*stream->bytesPerInputFrame; - p->Header.DataUsed = 0; - p->Header.Size = sizeof(p->Header); - p->Header.PresentationTime.Numerator = 1; - p->Header.PresentationTime.Denominator = 1; - - p = &(stream->packets[1]); - p->Signal.hEvent = stream->events[1]; - p->Header.Data = stream->hostBuffer + stream->framesPerHostIBuffer*stream->bytesPerInputFrame; - p->Header.FrameExtent = stream->framesPerHostIBuffer*stream->bytesPerInputFrame; - p->Header.DataUsed = 0; - p->Header.Size = sizeof(p->Header); - p->Header.PresentationTime.Numerator = 1; - p->Header.PresentationTime.Denominator = 1; - } - if(stream->userOutputChannels > 0) - { - DATAPACKET *p = &(stream->packets[2]); - p->Signal.hEvent = stream->events[2]; - p->Header.Data = stream->hostBuffer + 2*stream->framesPerHostIBuffer*stream->bytesPerInputFrame; - p->Header.FrameExtent = stream->framesPerHostOBuffer*stream->bytesPerOutputFrame; - p->Header.DataUsed = stream->framesPerHostOBuffer*stream->bytesPerOutputFrame; - p->Header.Size = sizeof(p->Header); - p->Header.PresentationTime.Numerator = 1; - p->Header.PresentationTime.Denominator = 1; - - p = &(stream->packets[3]); - p->Signal.hEvent = stream->events[3]; - p->Header.Data = stream->hostBuffer + 2*stream->framesPerHostIBuffer*stream->bytesPerInputFrame + stream->framesPerHostOBuffer*stream->bytesPerOutputFrame; - p->Header.FrameExtent = stream->framesPerHostOBuffer*stream->bytesPerOutputFrame; - p->Header.DataUsed = stream->framesPerHostOBuffer*stream->bytesPerOutputFrame; - p->Header.Size = sizeof(p->Header); - p->Header.PresentationTime.Numerator = 1; - p->Header.PresentationTime.Denominator = 1; - } - - stream->streamStarted = 0; - stream->streamActive = 0; - stream->streamStop = 0; - stream->streamAbort = 0; - stream->streamFlags = streamFlags; - stream->oldProcessPriority = REALTIME_PRIORITY_CLASS; - - *s = (PaStream*)stream; - - PA_LOGL_; - return result; - -error: - size = 5; - while(size--) - { - if(stream->events[size] != NULL) - { - CloseHandle(stream->events[size]); - stream->events[size] = NULL; - } - } - if(stream->hostBuffer) - PaUtil_FreeMemory( stream->hostBuffer ); - - if(stream->playbackPin) - PinClose(stream->playbackPin); - if(stream->recordingPin) - PinClose(stream->recordingPin); - - if( stream ) - PaUtil_FreeMemory( stream ); - - PA_LOGL_; - return result; -} - -/* - 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; - PaWinWdmStream *stream = (PaWinWdmStream*)s; - int size; - - PA_LOGE_; - - assert(!stream->streamStarted); - assert(!stream->streamActive); - - PaUtil_TerminateBufferProcessor( &stream->bufferProcessor ); - PaUtil_TerminateStreamRepresentation( &stream->streamRepresentation ); - size = 5; - while(size--) - { - if(stream->events[size] != NULL) - { - CloseHandle(stream->events[size]); - stream->events[size] = NULL; - } - } - if(stream->hostBuffer) - PaUtil_FreeMemory( stream->hostBuffer ); - - if(stream->playbackPin) - PinClose(stream->playbackPin); - if(stream->recordingPin) - PinClose(stream->recordingPin); - - PaUtil_FreeMemory( stream ); - - PA_LOGL_; - return result; -} - -/* -Write the supplied packet to the pin -Asynchronous -Should return false on success -*/ -static BOOL PinWrite(HANDLE h, DATAPACKET* p) -{ - unsigned long cbReturned = 0; - return DeviceIoControl(h,IOCTL_KS_WRITE_STREAM,NULL,0, - &p->Header,p->Header.Size,&cbReturned,&p->Signal); -} - -/* -Read to the supplied packet from the pin -Asynchronous -Should return false on success -*/ -static BOOL PinRead(HANDLE h, DATAPACKET* p) -{ - unsigned long cbReturned = 0; - return DeviceIoControl(h,IOCTL_KS_READ_STREAM,NULL,0, - &p->Header,p->Header.Size,&cbReturned,&p->Signal); -} - -/* -Copy the first interleaved channel of 16 bit data to the other channels -*/ -static void DuplicateFirstChannelInt16(void* buffer, int channels, int samples) -{ - unsigned short* data = (unsigned short*)buffer; - int channel; - unsigned short sourceSample; - while( samples-- ) - { - sourceSample = *data++; - channel = channels-1; - while( channel-- ) - { - *data++ = sourceSample; - } - } -} - -/* -Copy the first interleaved channel of 24 bit data to the other channels -*/ -static void DuplicateFirstChannelInt24(void* buffer, int channels, int samples) -{ - unsigned char* data = (unsigned char*)buffer; - int channel; - unsigned char sourceSample[3]; - while( samples-- ) - { - sourceSample[0] = data[0]; - sourceSample[1] = data[1]; - sourceSample[2] = data[2]; - data += 3; - channel = channels-1; - while( channel-- ) - { - data[0] = sourceSample[0]; - data[1] = sourceSample[1]; - data[2] = sourceSample[2]; - data += 3; - } - } -} - -/* -Copy the first interleaved channel of 32 bit data to the other channels -*/ -static void DuplicateFirstChannelInt32(void* buffer, int channels, int samples) -{ - unsigned long* data = (unsigned long*)buffer; - int channel; - unsigned long sourceSample; - while( samples-- ) - { - sourceSample = *data++; - channel = channels-1; - while( channel-- ) - { - *data++ = sourceSample; - } - } -} - -static DWORD WINAPI ProcessingThread(LPVOID pParam) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)pParam; - PaStreamCallbackTimeInfo ti; - int cbResult = paContinue; - int inbuf = 0; - int outbuf = 0; - int pending = 0; - PaError result; - unsigned long wait; - unsigned long eventSignaled; - int fillPlaybuf = 0; - int emptyRecordbuf = 0; - int framesProcessed; - unsigned long timeout; - int i; - int doChannelCopy; - int priming = 0; - PaStreamCallbackFlags underover = 0; - - PA_LOGE_; - - ti.inputBufferAdcTime = 0.0; - ti.currentTime = 0.0; - ti.outputBufferDacTime = 0.0; - - /* Get double buffering going */ - - /* Submit buffers */ - if(stream->playbackPin) - { - result = PinSetState(stream->playbackPin, KSSTATE_RUN); - - PA_DEBUG(("play state run = %d;",(int)result)); - SetEvent(stream->events[outbuf+2]); - outbuf = (outbuf+1)&1; - SetEvent(stream->events[outbuf+2]); - outbuf = (outbuf+1)&1; - pending += 2; - priming += 4; - } - if(stream->recordingPin) - { - result = PinSetState(stream->recordingPin, KSSTATE_RUN); - - PA_DEBUG(("recording state run = %d;",(int)result)); - PinRead(stream->recordingPin->handle,&stream->packets[inbuf]); - inbuf = (inbuf+1)&1; /* Increment and wrap */ - PinRead(stream->recordingPin->handle,&stream->packets[inbuf]); - inbuf = (inbuf+1)&1; /* Increment and wrap */ - /* FIXME - do error checking */ - pending += 2; - } - PA_DEBUG(("Out buffer len:%f\n",(2000*stream->framesPerHostOBuffer) / stream->streamRepresentation.streamInfo.sampleRate)); - PA_DEBUG(("In buffer len:%f\n",(2000*stream->framesPerHostIBuffer) / stream->streamRepresentation.streamInfo.sampleRate)); - timeout = max( - ((2000*(DWORD)stream->framesPerHostOBuffer) / (DWORD)stream->streamRepresentation.streamInfo.sampleRate), - ((2000*(DWORD)stream->framesPerHostIBuffer) / (DWORD)stream->streamRepresentation.streamInfo.sampleRate)); - timeout = max(timeout,1); - PA_DEBUG(("Timeout = %ld\n",timeout)); - - while(!stream->streamAbort) - { - fillPlaybuf = 0; - emptyRecordbuf = 0; - - /* Wait for next input or output buffer to be finished with*/ - assert(pending>0); - - if(stream->streamStop) - { - PA_DEBUG(("ss1:pending=%d ",pending)); - } - wait = WaitForMultipleObjects(5, stream->events, FALSE, 0); - if( wait == WAIT_TIMEOUT ) - { - /* No (under|over)flow has ocurred */ - wait = WaitForMultipleObjects(5, stream->events, FALSE, timeout); - eventSignaled = wait - WAIT_OBJECT_0; - } - else - { - eventSignaled = wait - WAIT_OBJECT_0; - if( eventSignaled < 2 ) - { - underover |= paInputOverflow; - PA_DEBUG(("Input overflow\n")); - } - else if(( eventSignaled < 4 )&&(!priming)) - { - underover |= paOutputUnderflow; - PA_DEBUG(("Output underflow\n")); - } - } - - if(stream->streamStop) - { - PA_DEBUG(("ss2:wait=%ld",wait)); - } - if(wait == WAIT_FAILED) - { - PA_DEBUG(("Wait fail = %ld! ",wait)); - break; - } - if(wait == WAIT_TIMEOUT) - { - continue; - } - - if(eventSignaled < 2) - { /* Recording input buffer has been filled */ - if(stream->playbackPin) - { - /* First check if also the next playback buffer has been signaled */ - wait = WaitForSingleObject(stream->events[outbuf+2],0); - if(wait == WAIT_OBJECT_0) - { - /* Yes, so do both buffers at same time */ - fillPlaybuf = 1; - pending--; - /* Was this an underflow situation? */ - if( underover ) - underover |= paOutputUnderflow; /* Yes! */ - } - } - emptyRecordbuf = 1; - pending--; - } - else if(eventSignaled < 4) - { /* Playback output buffer has been emptied */ - if(stream->recordingPin) - { - /* First check if also the next recording buffer has been signaled */ - wait = WaitForSingleObject(stream->events[inbuf],0); - if(wait == WAIT_OBJECT_0) - { /* Yes, so do both buffers at same time */ - emptyRecordbuf = 1; - pending--; - /* Was this an overflow situation? */ - if( underover ) - underover |= paInputOverflow; /* Yes! */ - } - } - fillPlaybuf = 1; - pending--; - } - else - { - /* Abort event! */ - assert(stream->streamAbort); /* Should have been set */ - PA_DEBUG(("ABORTING ")); - break; - } - ResetEvent(stream->events[eventSignaled]); - - if(stream->streamStop) - { - PA_DEBUG(("Stream stop! pending=%d",pending)); - cbResult = paComplete; /* Stop, but play remaining buffers */ - } - - /* Do necessary buffer processing (which will invoke user callback if necessary */ - doChannelCopy = 0; - if(cbResult==paContinue) - { - PaUtil_BeginCpuLoadMeasurement( &stream->cpuLoadMeasurer ); - if((stream->bufferProcessor.hostInputFrameCount[0] + stream->bufferProcessor.hostInputFrameCount[1]) == - (stream->bufferProcessor.hostOutputFrameCount[0] + stream->bufferProcessor.hostOutputFrameCount[1]) ) - PaUtil_BeginBufferProcessing(&stream->bufferProcessor,&ti,underover); - underover = 0; /* Reset the (under|over)flow status */ - if(fillPlaybuf) - { - PaUtil_SetOutputFrameCount(&stream->bufferProcessor,0); - if( stream->userOutputChannels == 1 ) - { - /* Write the single user channel to the first interleaved block */ - PaUtil_SetOutputChannel(&stream->bufferProcessor,0,stream->packets[outbuf+2].Header.Data,stream->deviceOutputChannels); - /* We will do a copy to the other channels after the data has been written */ - doChannelCopy = 1; - } - else - { - for(i=0;i<stream->userOutputChannels;i++) - { - /* Only write the user output channels. Leave the rest blank */ - PaUtil_SetOutputChannel(&stream->bufferProcessor,i,((unsigned char*)(stream->packets[outbuf+2].Header.Data))+(i*stream->outputSampleSize),stream->deviceOutputChannels); - } - } - } - if(emptyRecordbuf) - { - PaUtil_SetInputFrameCount(&stream->bufferProcessor,stream->packets[inbuf].Header.DataUsed/stream->bytesPerInputFrame); - for(i=0;i<stream->userInputChannels;i++) - { - /* Only read as many channels as the user wants */ - PaUtil_SetInputChannel(&stream->bufferProcessor,i,((unsigned char*)(stream->packets[inbuf].Header.Data))+(i*stream->inputSampleSize),stream->deviceInputChannels); - } - } - /* Only call the EndBufferProcessing function is the total input frames == total output frames */ - if((stream->bufferProcessor.hostInputFrameCount[0] + stream->bufferProcessor.hostInputFrameCount[1]) == - (stream->bufferProcessor.hostOutputFrameCount[0] + stream->bufferProcessor.hostOutputFrameCount[1]) ) - framesProcessed = PaUtil_EndBufferProcessing(&stream->bufferProcessor,&cbResult); - else framesProcessed = 0; - if( doChannelCopy ) - { - /* Copy the first output channel to the other channels */ - switch(stream->outputSampleSize) - { - case 2: - DuplicateFirstChannelInt16(stream->packets[outbuf+2].Header.Data,stream->deviceOutputChannels,stream->framesPerHostOBuffer); - break; - case 3: - DuplicateFirstChannelInt24(stream->packets[outbuf+2].Header.Data,stream->deviceOutputChannels,stream->framesPerHostOBuffer); - break; - case 4: - DuplicateFirstChannelInt32(stream->packets[outbuf+2].Header.Data,stream->deviceOutputChannels,stream->framesPerHostOBuffer); - break; - default: - assert(0); /* Unsupported format! */ - break; - } - } - PaUtil_EndCpuLoadMeasurement( &stream->cpuLoadMeasurer, framesProcessed ); - } - else - { - fillPlaybuf = 0; - emptyRecordbuf = 0; - } - - /* - if(cbResult != paContinue) - { - PA_DEBUG(("cbResult=%d, pending=%d:",cbResult,pending)); - } - */ - /* Submit buffers */ - if((fillPlaybuf)&&(cbResult!=paAbort)) - { - if(!PinWrite(stream->playbackPin->handle,&stream->packets[outbuf+2])) - outbuf = (outbuf+1)&1; /* Increment and wrap */ - pending++; - if( priming ) - priming--; /* Have to prime twice */ - } - if((emptyRecordbuf)&&(cbResult==paContinue)) - { - stream->packets[inbuf].Header.DataUsed = 0; /* Reset for reuse */ - PinRead(stream->recordingPin->handle,&stream->packets[inbuf]); - inbuf = (inbuf+1)&1; /* Increment and wrap */ - pending++; - } - if(pending==0) - { - PA_DEBUG(("pending==0 finished...;")); - break; - } - if((!stream->playbackPin)&&(cbResult!=paContinue)) - { - PA_DEBUG(("record only cbResult=%d...;",cbResult)); - break; - } - } - - PA_DEBUG(("Finished thread")); - - /* Finished, either normally or aborted */ - if(stream->playbackPin) - { - result = PinSetState(stream->playbackPin, KSSTATE_PAUSE); - result = PinSetState(stream->playbackPin, KSSTATE_STOP); - } - if(stream->recordingPin) - { - result = PinSetState(stream->recordingPin, KSSTATE_PAUSE); - result = PinSetState(stream->recordingPin, KSSTATE_STOP); - } - - stream->streamActive = 0; - - if((!stream->streamStop)&&(!stream->streamAbort)) - { - /* Invoke the user stream finished callback */ - /* Only do it from here if not being stopped/aborted by user */ - if( stream->streamRepresentation.streamFinishedCallback != 0 ) - stream->streamRepresentation.streamFinishedCallback( stream->streamRepresentation.userData ); - } - stream->streamStop = 0; - stream->streamAbort = 0; - - /* Reset process priority if necessary */ - if(stream->oldProcessPriority != REALTIME_PRIORITY_CLASS) - { - SetPriorityClass(GetCurrentProcess(),stream->oldProcessPriority); - stream->oldProcessPriority = REALTIME_PRIORITY_CLASS; - } - - PA_LOGL_; - ExitThread(0); - return 0; -} - -static PaError StartStream( PaStream *s ) -{ - PaError result = paNoError; - PaWinWdmStream *stream = (PaWinWdmStream*)s; - DWORD dwID; - BOOL ret; - int size; - - PA_LOGE_; - - stream->streamStop = 0; - stream->streamAbort = 0; - size = 5; - while(size--) - { - if(stream->events[size] != NULL) - { - ResetEvent(stream->events[size]); - } - } - - PaUtil_ResetBufferProcessor( &stream->bufferProcessor ); - - stream->oldProcessPriority = GetPriorityClass(GetCurrentProcess()); - /* Uncomment the following line to enable dynamic boosting of the process - * priority to real time for best low latency support - * Disabled by default because RT processes can easily block the OS */ - /*ret = SetPriorityClass(GetCurrentProcess(),REALTIME_PRIORITY_CLASS); - PA_DEBUG(("Class ret = %d;",ret));*/ - - stream->streamStarted = 1; - stream->streamThread = CreateThread(NULL, 0, ProcessingThread, stream, 0, &dwID); - if(stream->streamThread == NULL) - { - stream->streamStarted = 0; - result = paInsufficientMemory; - goto end; - } - ret = SetThreadPriority(stream->streamThread,THREAD_PRIORITY_TIME_CRITICAL); - PA_DEBUG(("Priority ret = %d;",ret)); - /* Make the stream active */ - stream->streamActive = 1; - -end: - PA_LOGL_; - return result; -} - - -static PaError StopStream( PaStream *s ) -{ - PaError result = paNoError; - PaWinWdmStream *stream = (PaWinWdmStream*)s; - int doCb = 0; - - PA_LOGE_; - - if(stream->streamActive) - { - doCb = 1; - stream->streamStop = 1; - while(stream->streamActive) - { - PA_DEBUG(("W.")); - Sleep(10); /* Let thread sleep for 10 msec */ - } - } - - PA_DEBUG(("Terminating thread")); - if(stream->streamStarted && stream->streamThread) - { - TerminateThread(stream->streamThread,0); - stream->streamThread = NULL; - } - - stream->streamStarted = 0; - - if(stream->oldProcessPriority != REALTIME_PRIORITY_CLASS) - { - SetPriorityClass(GetCurrentProcess(),stream->oldProcessPriority); - stream->oldProcessPriority = REALTIME_PRIORITY_CLASS; - } - - if(doCb) - { - /* Do user callback now after all state has been reset */ - /* This means it should be safe for the called function */ - /* to invoke e.g. StartStream */ - if( stream->streamRepresentation.streamFinishedCallback != 0 ) - stream->streamRepresentation.streamFinishedCallback( stream->streamRepresentation.userData ); - } - - PA_LOGL_; - return result; -} - -static PaError AbortStream( PaStream *s ) -{ - PaError result = paNoError; - PaWinWdmStream *stream = (PaWinWdmStream*)s; - int doCb = 0; - - PA_LOGE_; - - if(stream->streamActive) - { - doCb = 1; - stream->streamAbort = 1; - SetEvent(stream->events[4]); /* Signal immediately */ - while(stream->streamActive) - { - Sleep(10); - } - } - - if(stream->streamStarted && stream->streamThread) - { - TerminateThread(stream->streamThread,0); - stream->streamThread = NULL; - } - - stream->streamStarted = 0; - - if(stream->oldProcessPriority != REALTIME_PRIORITY_CLASS) - { - SetPriorityClass(GetCurrentProcess(),stream->oldProcessPriority); - stream->oldProcessPriority = REALTIME_PRIORITY_CLASS; - } - - if(doCb) - { - /* Do user callback now after all state has been reset */ - /* This means it should be safe for the called function */ - /* to invoke e.g. StartStream */ - if( stream->streamRepresentation.streamFinishedCallback != 0 ) - stream->streamRepresentation.streamFinishedCallback( stream->streamRepresentation.userData ); - } - - stream->streamActive = 0; - stream->streamStarted = 0; - - PA_LOGL_; - return result; -} - - -static PaError IsStreamStopped( PaStream *s ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - int result = 0; - - PA_LOGE_; - - if(!stream->streamStarted) - result = 1; - - PA_LOGL_; - return result; -} - - -static PaError IsStreamActive( PaStream *s ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - int result = 0; - - PA_LOGE_; - - if(stream->streamActive) - result = 1; - - PA_LOGL_; - return result; -} - - -static PaTime GetStreamTime( PaStream* s ) -{ - PA_LOGE_; - PA_LOGL_; - (void)s; - return PaUtil_GetTime(); -} - - -static double GetStreamCpuLoad( PaStream* s ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - double result; - PA_LOGE_; - result = PaUtil_GetCpuLoad( &stream->cpuLoadMeasurer ); - PA_LOGL_; - return result; -} - - -/* - As separate stream interfaces are used for blocking and callback - streams, the following functions can be guaranteed to only be called - for blocking streams. -*/ - -static PaError ReadStream( PaStream* s, - void *buffer, - unsigned long frames ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - - PA_LOGE_; - - /* suppress unused variable warnings */ - (void) buffer; - (void) frames; - (void) stream; - - /* IMPLEMENT ME, see portaudio.h for required behavior*/ - PA_LOGL_; - return paNoError; -} - - -static PaError WriteStream( PaStream* s, - const void *buffer, - unsigned long frames ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - - PA_LOGE_; - - /* suppress unused variable warnings */ - (void) buffer; - (void) frames; - (void) stream; - - /* IMPLEMENT ME, see portaudio.h for required behavior*/ - PA_LOGL_; - return paNoError; -} - - -static signed long GetStreamReadAvailable( PaStream* s ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - - PA_LOGE_; - - /* suppress unused variable warnings */ - (void) stream; - - /* IMPLEMENT ME, see portaudio.h for required behavior*/ - PA_LOGL_; - return 0; -} - - -static signed long GetStreamWriteAvailable( PaStream* s ) -{ - PaWinWdmStream *stream = (PaWinWdmStream*)s; - - PA_LOGE_; - /* suppress unused variable warnings */ - (void) stream; - - /* IMPLEMENT ME, see portaudio.h for required behavior*/ - PA_LOGL_; - return 0; -}
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