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https://github.com/reactos/reactos.git
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369 lines
10 KiB
C
369 lines
10 KiB
C
/*
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* PROJECT: ReactOS Sound System "MME Buddy" Library
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: lib/drivers/sound/mmebuddy/deviceinstance.c
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*
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* PURPOSE: Manages instances of sound devices.
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*
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* PROGRAMMERS: Andrew Greenwood (silverblade@reactos.org)
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*/
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#include "precomp.h"
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/*
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Restrain ourselves from flooding the kernel device!
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*/
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#define SOUND_KERNEL_BUFFER_COUNT 10
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#define SOUND_KERNEL_BUFFER_SIZE 16384
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MMRESULT
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AllocateSoundDeviceInstance(
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OUT PSOUND_DEVICE_INSTANCE* SoundDeviceInstance)
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{
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PSOUND_DEVICE_INSTANCE NewInstance;
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VALIDATE_MMSYS_PARAMETER( SoundDeviceInstance );
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/* Allocate memory for the new instance */
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NewInstance = AllocateStruct(SOUND_DEVICE_INSTANCE);
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if ( ! NewInstance )
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return MMSYSERR_NOMEM;
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/* Use default frame size */
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NewInstance->FrameSize = SOUND_KERNEL_BUFFER_SIZE;
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/* Use default buffer count */
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NewInstance->BufferCount = SOUND_KERNEL_BUFFER_COUNT;
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/* Provide the caller with the new instance pointer */
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*SoundDeviceInstance = NewInstance;
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return MMSYSERR_NOERROR;
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}
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VOID
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FreeSoundDeviceInstance(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance)
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{
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/*
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Device is marked as invalid by now, but we can still do some sanity
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checking.
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*/
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SND_ASSERT( SoundDeviceInstance->Thread == NULL );
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ZeroMemory(SoundDeviceInstance, sizeof(SOUND_DEVICE_INSTANCE));
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FreeMemory(SoundDeviceInstance);
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}
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BOOLEAN
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IsValidSoundDeviceInstance(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance)
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{
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PSOUND_DEVICE SoundDevice;
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PSOUND_DEVICE_INSTANCE CurrentInstance;
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if ( ! SoundDeviceInstance )
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return FALSE;
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/* GetSoundDeviceFromInstance would send us into a recursive loop... */
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SoundDevice = SoundDeviceInstance->Device;
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SND_ASSERT(SoundDevice);
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CurrentInstance = SoundDevice->HeadInstance;
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while ( CurrentInstance )
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{
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if ( CurrentInstance == SoundDeviceInstance )
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return TRUE;
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CurrentInstance = CurrentInstance->Next;
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}
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return FALSE;
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}
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MMRESULT
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ListSoundDeviceInstance(
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IN PSOUND_DEVICE SoundDevice,
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance)
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{
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDevice(SoundDevice) );
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VALIDATE_MMSYS_PARAMETER( SoundDeviceInstance );
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SND_TRACE(L"Listing sound device instance\n");
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if ( ! SoundDevice->HeadInstance )
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{
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/* First entry - assign to head and tail */
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SoundDevice->HeadInstance = SoundDeviceInstance;
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SoundDevice->TailInstance = SoundDeviceInstance;
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}
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else
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{
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/* Attach to the end */
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SoundDevice->TailInstance->Next = SoundDeviceInstance;
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SoundDevice->TailInstance = SoundDeviceInstance;
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}
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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UnlistSoundDeviceInstance(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance)
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{
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MMRESULT Result;
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PSOUND_DEVICE SoundDevice;
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PSOUND_DEVICE_INSTANCE CurrentInstance, PreviousInstance;
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
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SND_TRACE(L"Unlisting sound device instance\n");
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Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
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SND_ASSERT( MMSUCCESS(Result) );
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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PreviousInstance = NULL;
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CurrentInstance = SoundDevice->HeadInstance;
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while ( CurrentInstance )
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{
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if ( CurrentInstance == SoundDeviceInstance )
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{
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if ( ! PreviousInstance )
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{
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/* This is the head node */
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SoundDevice->HeadInstance = SoundDevice->HeadInstance->Next;
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}
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else
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{
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/* There are nodes before this one - cut ours out */
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PreviousInstance->Next = CurrentInstance->Next;
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}
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if ( ! CurrentInstance->Next )
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{
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/* This is the tail node */
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SoundDevice->TailInstance = PreviousInstance;
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}
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}
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PreviousInstance = CurrentInstance;
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CurrentInstance = CurrentInstance->Next;
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}
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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CreateSoundDeviceInstance(
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IN PSOUND_DEVICE SoundDevice,
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OUT PSOUND_DEVICE_INSTANCE* SoundDeviceInstance)
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{
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MMRESULT Result;
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PMMFUNCTION_TABLE FunctionTable;
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SND_TRACE(L"Creating a sound device instance\n");
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDevice(SoundDevice) );
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VALIDATE_MMSYS_PARAMETER( SoundDeviceInstance != NULL );
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Result = AllocateSoundDeviceInstance(SoundDeviceInstance);
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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/* Get the "open" routine from the function table, and validate it */
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Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
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if ( ! MMSUCCESS(Result) )
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{
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FreeSoundDeviceInstance(*SoundDeviceInstance);
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return TranslateInternalMmResult(Result);
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}
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if ( FunctionTable->Open == NULL )
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{
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FreeSoundDeviceInstance(*SoundDeviceInstance);
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return MMSYSERR_NOTSUPPORTED;
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}
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/* Set up the members of the structure */
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(*SoundDeviceInstance)->Next = NULL;
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(*SoundDeviceInstance)->Device = SoundDevice;
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(*SoundDeviceInstance)->Handle = NULL;
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(*SoundDeviceInstance)->Thread = NULL;
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(*SoundDeviceInstance)->WinMM.Handle = INVALID_HANDLE_VALUE;
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(*SoundDeviceInstance)->WinMM.ClientCallback = 0;
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(*SoundDeviceInstance)->WinMM.ClientCallbackInstanceData = 0;
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(*SoundDeviceInstance)->WinMM.Flags = 0;
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/* Initialise the members of the struct used by the sound thread */
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(*SoundDeviceInstance)->HeadWaveHeader = NULL;
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(*SoundDeviceInstance)->TailWaveHeader = NULL;
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(*SoundDeviceInstance)->OutstandingBuffers = 0;
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(*SoundDeviceInstance)->LoopsRemaining = 0;
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/* Create the streaming thread (TODO - is this for wave only?) */
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Result = CreateSoundThread(&(*SoundDeviceInstance)->Thread);
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if ( ! MMSUCCESS(Result) )
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{
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FreeSoundDeviceInstance(*SoundDeviceInstance);
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return TranslateInternalMmResult(Result);
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}
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/* Add the instance to the list */
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Result = ListSoundDeviceInstance(SoundDevice, *SoundDeviceInstance);
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if ( ! MMSUCCESS(Result) )
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{
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FreeSoundDeviceInstance(*SoundDeviceInstance);
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return TranslateInternalMmResult(Result);
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}
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/* Try and open the device */
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Result = FunctionTable->Open(SoundDevice, (&(*SoundDeviceInstance)->Handle));
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if ( ! MMSUCCESS(Result) )
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{
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UnlistSoundDeviceInstance(*SoundDeviceInstance);
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FreeSoundDeviceInstance(*SoundDeviceInstance);
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return TranslateInternalMmResult(Result);
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}
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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DestroySoundDeviceInstance(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance)
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{
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MMRESULT Result;
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PMMFUNCTION_TABLE FunctionTable;
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PSOUND_DEVICE SoundDevice;
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PVOID Handle;
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SND_TRACE(L"Destroying a sound device instance\n");
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
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Result = GetSoundDeviceFromInstance(SoundDeviceInstance, &SoundDevice);
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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Result = GetSoundDeviceInstanceHandle(SoundDeviceInstance, &Handle);
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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/* Get the "close" routine from the function table, and validate it */
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Result = GetSoundDeviceFunctionTable(SoundDevice, &FunctionTable);
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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SND_ASSERT( FunctionTable->Close );
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if ( FunctionTable->Close == NULL )
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{
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/* This indicates bad practice, really! If you can open, why not close?! */
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return MMSYSERR_NOTSUPPORTED;
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}
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/* Stop the streaming thread */
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if ( SoundDeviceInstance->Thread )
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{
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Result = DestroySoundThread(SoundDeviceInstance->Thread);
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SND_ASSERT( MMSUCCESS(Result) ); /* It should succeed! */
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if ( ! MMSUCCESS(Result ) )
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{
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return TranslateInternalMmResult(Result);
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}
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}
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/* Blank this out here */
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SoundDeviceInstance->Thread = NULL;
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/* Try and close the device */
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Result = FunctionTable->Close(SoundDeviceInstance, Handle);
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SND_ASSERT( MMSUCCESS(Result) ); /* It should succeed! */
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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/* Drop it from the list */
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Result = UnlistSoundDeviceInstance(SoundDeviceInstance);
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SND_ASSERT( MMSUCCESS(Result) ); /* It should succeed! */
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if ( ! MMSUCCESS(Result) )
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return TranslateInternalMmResult(Result);
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FreeSoundDeviceInstance(SoundDeviceInstance);
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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DestroyAllSoundDeviceInstances(
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IN PSOUND_DEVICE SoundDevice)
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{
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MMRESULT Result;
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PSOUND_DEVICE_INSTANCE SoundDeviceInstance, NextDeviceInstance;
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SoundDeviceInstance = SoundDevice->HeadInstance;
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while ( SoundDeviceInstance )
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{
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NextDeviceInstance = SoundDeviceInstance->Next;
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Result = DestroySoundDeviceInstance(SoundDeviceInstance);
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SND_ASSERT( MMSUCCESS(Result) );
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SoundDeviceInstance = NextDeviceInstance;
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}
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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GetSoundDeviceFromInstance(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance,
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OUT PSOUND_DEVICE* SoundDevice)
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{
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
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VALIDATE_MMSYS_PARAMETER( SoundDevice );
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*SoundDevice = SoundDeviceInstance->Device;
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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GetSoundDeviceInstanceHandle(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance,
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OUT PVOID* Handle)
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{
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
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VALIDATE_MMSYS_PARAMETER( Handle );
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*Handle = SoundDeviceInstance->Handle;
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return MMSYSERR_NOERROR;
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}
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MMRESULT
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SetSoundDeviceInstanceMmeData(
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IN PSOUND_DEVICE_INSTANCE SoundDeviceInstance,
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IN HDRVR MmeHandle,
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IN DWORD_PTR ClientCallback,
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IN DWORD_PTR ClientCallbackData,
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IN DWORD Flags)
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{
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VALIDATE_MMSYS_PARAMETER( IsValidSoundDeviceInstance(SoundDeviceInstance) );
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SND_TRACE(L"Setting MME data - handle %x, callback %x, instance data %x, flags %x\n",
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MmeHandle, ClientCallback, ClientCallbackData, Flags);
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SoundDeviceInstance->WinMM.Handle = MmeHandle;
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SoundDeviceInstance->WinMM.ClientCallback = ClientCallback;
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SoundDeviceInstance->WinMM.ClientCallbackInstanceData = ClientCallbackData;
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SoundDeviceInstance->WinMM.Flags = Flags;
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return MMSYSERR_NOERROR;
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}
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