RingStatus_t RingGeneric_c::Extract( unsigned int *Value,
unsigned int BlockingPeriod )
{
//
// If there is nothing in the ring we wait for upto the specified period.
//
OS_ResetEvent( &Signal );
if( (NextExtract == NextInsert) && (BlockingPeriod != RING_NONE_BLOCKING) )
OS_WaitForEvent( &Signal, BlockingPeriod );
OS_LockMutex( &Lock );
if( NextExtract != NextInsert )
{
*Value = Storage[NextExtract];
NextExtract++;
if( NextExtract == Limit )
NextExtract = 0;
OS_UnLockMutex( &Lock );
return RingNoError;
}
OS_UnLockMutex( &Lock );
return RingNothingToGet;
}
//}}}
//{{{ RemoveStream
HavanaStatus_t HavanaPlayback_c::RemoveStream (class HavanaStream_c* HavanaStream)
{
int i;
PLAYBACK_DEBUG("\n");
if (HavanaStream == NULL)
return HavanaStreamInvalid;
OS_LockMutex (&Lock);
for (i = 0; i < MAX_STREAMS_PER_PLAYBACK; i++)
{
if (Stream[i] == HavanaStream)
break;
}
if (i == MAX_STREAMS_PER_PLAYBACK)
{
PLAYBACK_ERROR("Unable to locate stream for delete\n");
OS_UnLockMutex (&Lock);
return HavanaStreamInvalid;
}
//PLAYBACK_DEBUG ("Removing stream %p, %d\n", Stream[i], i);
delete Stream[i];
Stream[i] = NULL;
OS_UnLockMutex (&Lock);
return HavanaNoError;
}
//}}}
//{{{ DeletePlayback
HavanaStatus_t HavanaPlayer_c::DeletePlayback (HavanaPlayback_c* HavanaPlayback)
{
int i;
if (HavanaPlayback == NULL)
return HavanaPlaybackInvalid;
OS_LockMutex (&Lock);
for (i = 0; i < MAX_PLAYBACKS; i++)
{
if (Playback[i] == HavanaPlayback)
break;
}
if (i == MAX_PLAYBACKS)
{
HAVANA_ERROR("Unable to locate playback for delete\n");
OS_UnLockMutex (&Lock);
return HavanaPlaybackInvalid;
}
delete HavanaPlayback;
Playback[i] = NULL;
OS_UnLockMutex (&Lock);
return HavanaNoError;
}
RingStatus_t RingGeneric_c::Insert( unsigned int Value )
{
unsigned int OldNextInsert;
OS_LockMutex( &Lock );
OldNextInsert = NextInsert;
Storage[NextInsert] = Value;
NextInsert++;
if( NextInsert == Limit )
NextInsert = 0;
if( NextInsert == NextExtract )
{
NextInsert = OldNextInsert;
OS_UnLockMutex( &Lock );
return RingTooManyEntries;
}
OS_UnLockMutex( &Lock );
OS_SetEvent( &Signal );
return RingNoError;
}
BufferStatus_t BufferManager_Generic_c::DestroyPool(BufferPool_t Pool)
{
BufferPool_Generic_t LocalPool = (BufferPool_Generic_t)Pool;
BufferPool_Generic_t *LocationOfPointer;
//
// First find and remove the pool from our list
//
OS_LockMutex(&Lock);
for (LocationOfPointer = &ListOfBufferPools;
*LocationOfPointer != NULL;
LocationOfPointer = &((*LocationOfPointer)->Next))
if (*LocationOfPointer == LocalPool)
break;
if (*LocationOfPointer == NULL)
{
report(severity_error, "BufferManager_Generic_c::DestroyPool - Pool not found.\n");
OS_UnLockMutex(&Lock);
return BufferPoolNotFound;
}
*LocationOfPointer = LocalPool->Next;
OS_UnLockMutex(&Lock);
//
// Then destroy the actual pool
//
delete LocalPool;
return BufferNoError;
}
//}}}
//{{{ AddStream
//{{{ doxynote
/// \brief Create a new stream, initialise it and add it to this playback
/// \param Media Textual description of media (audio or video)
/// \param Format Stream packet format (PES)
/// \param Encoding The encoding of the stream content (MPEG2/H264 etc)
/// \param SurfaceId Topological identifier for PiP and speaker-in-speaker.
/// \param HavanaStream Reference to created stream
/// \return Havana status code, HavanaNoError indicates success.
//}}}
HavanaStatus_t HavanaPlayback_c::AddStream (char* Media,
char* Format,
char* Encoding,
unsigned int SurfaceId,
class HavanaStream_c** HavanaStream)
{
HavanaStatus_t Status;
int i;
//if (*HavanaStream != NULL) // Device already has this stream
// return HavanaStreamAlreadyExists;
OS_LockMutex (&Lock);
for (i = 0; i < MAX_STREAMS_PER_PLAYBACK; i++)
{
if (Stream[i] == NULL)
break;
}
if (i == MAX_STREAMS_PER_PLAYBACK)
{
PLAYBACK_ERROR("Unable to create stream context - Too many streams\n");
OS_UnLockMutex (&Lock);
return HavanaTooManyStreams;
}
Stream[i] = new HavanaStream_c();
if (Stream[i] == NULL)
{
PLAYBACK_ERROR("Unable to create stream context - insufficient memory\n");
OS_UnLockMutex (&Lock);
return HavanaNoMemory;
}
Status = Stream[i]->Init (HavanaPlayer,
Player,
PlayerPlayback,
Media,
Format,
Encoding,
SurfaceId);
if (Status != HavanaNoError)
{
delete Stream[i];
Stream[i] = NULL;
OS_UnLockMutex (&Lock);
return Status;
}
//PLAYBACK_DEBUG ("Adding stream %p, %d\n", Stream[i], i);
*HavanaStream = Stream[i];
OS_UnLockMutex (&Lock);
return HavanaNoError;
}
AllocatorStatus_t AllocatorSimple_c::ExtendToLargest(
unsigned int *Size,
unsigned char **Block,
bool ExtendUpwards)
{
unsigned int i;
unsigned char *BoundaryToExtend;
//
if (ExtendUpwards)
{
//
// First check to see if extension is even possible
//
BoundaryToExtend = *Block + *Size;
if (On64MBBoundary(BoundaryToExtend) || (BoundaryToExtend >= (PhysicalAddress + BufferSize)))
return AllocatorNoMemory;
//
// Now scan for an adjacent block
//
OS_LockMutex(&Lock);
for (i = 0; i < (HighestUsedBlockIndex + 1); i++)
if (Blocks[i].InUse && (BoundaryToExtend == Blocks[i].Base))
{
*Size += Blocks[i].Size;
Blocks[i].Size = 0;
Blocks[i].InUse = false;
OS_UnLockMutex(&Lock);
return AllocatorNoError;
}
}
else
{
//
// First check to see if extension is even possible
//
BoundaryToExtend = *Block;
if (On64MBBoundary(BoundaryToExtend) || (BoundaryToExtend == PhysicalAddress))
return AllocatorNoMemory;
//
// Now scan for an adjacent block
//
OS_LockMutex(&Lock);
for (i = 0; i < (HighestUsedBlockIndex + 1); i++)
if (Blocks[i].InUse && (BoundaryToExtend == (Blocks[i].Base + Blocks[i].Size)))
{
*Size += Blocks[i].Size;
*Block = Blocks[i].Base;
Blocks[i].Size = 0;
Blocks[i].InUse = false;
OS_UnLockMutex(&Lock);
return AllocatorNoError;
}
}
OS_UnLockMutex(&Lock);
return AllocatorUnableToAllocate;
}
StackStatus_t StackGeneric_c::Push(unsigned int Value)
{
OS_LockMutex(&Lock);
if (Level == Limit)
{
OS_UnLockMutex(&Lock);
return StackTooManyEntries;
}
Storage[Level++] = Value;
OS_UnLockMutex(&Lock);
return StackNoError;
}
ManifestorStatus_t Manifestor_Audio_c::DequeueBuffer(unsigned int *BufferIndexPtr, bool NonBlock)
{
unsigned int BufferIndex;
while( !ForcedUnblock )
{
//
// Dequeue the buffer
//
OS_LockMutex(&BufferQueueLock);
if( BufferQueueHead != INVALID_BUFFER_ID )
{
#ifdef __TDT__
if(QueuedBufferCount < 3)
inject_silent_count = 3;
if(inject_silent_count > 0)
{
OS_UnLockMutex(&BufferQueueLock);
inject_silent_count--;
return ManifestorWouldBlock;
}
#endif
BufferIndex = BufferQueueHead;
BufferQueueHead = StreamBuffer[BufferIndex].NextIndex;
QueuedBufferCount--;
NotQueuedBufferCount++;
OS_UnLockMutex(&BufferQueueLock);
*BufferIndexPtr = BufferIndex;
return ManifestorNoError;
}
OS_UnLockMutex(&BufferQueueLock);
//
// Block if no buffer is available.
//
if( NonBlock )
return ManifestorWouldBlock;
OS_WaitForEvent(&BufferQueueUpdated, OS_INFINITE);
OS_ResetEvent(&BufferQueueUpdated);
}
return ManifestorError;
}
//}}}
//{{{ CreatePlayback
HavanaStatus_t HavanaPlayer_c::CreatePlayback (HavanaPlayback_c** HavanaPlayback)
{
HavanaStatus_t HavanaStatus;
int i;
HAVANA_DEBUG("\n");
OS_LockMutex (&Lock);
for (i = 0; i < MAX_PLAYBACKS; i++)
{
if (Playback[i] != NULL)
{
if (Playback[i]->Active () == HavanaPlaybackActive)
continue;
}
break;
}
if (i == MAX_PLAYBACKS)
{
HAVANA_ERROR("Unable to create playback context - Too many playbacks\n");
OS_UnLockMutex (&Lock);
return HavanaTooManyPlaybacks;
}
if (Playback[i] == NULL)
Playback[i] = new HavanaPlayback_c ();
if (Playback[i] == NULL)
{
HAVANA_ERROR("Unable to create playback context - insufficient memory\n");
OS_UnLockMutex (&Lock);
return HavanaNoMemory;
}
HavanaStatus = Playback[i]->Init (this, Player, BufferManager);
if (HavanaStatus != HavanaNoError)
{
HAVANA_ERROR("Unable to create playback context %x\n", HavanaStatus);
delete Playback[i];
Playback[i] = NULL;
OS_UnLockMutex (&Lock);
return HavanaStatus;
}
*HavanaPlayback = Playback[i];
OS_UnLockMutex (&Lock);
return HavanaNoError;
}
AllocatorStatus_t AllocatorSimple_c::Allocate(
unsigned int Size,
unsigned char **Block,
bool NonBlocking)
{
unsigned int i;
//
if (this == NULL)
return AllocatorError;
//
InAllocate = true;
Size = (((Size + SegmentSize - 1) / SegmentSize) * SegmentSize);
do
{
OS_LockMutex(&Lock);
OS_ResetEvent(&EntryFreed);
//
if (BeingDeleted)
break;
//
for (i = 0; i < (HighestUsedBlockIndex + 1); i++)
if (Blocks[i].InUse && (Blocks[i].Size >= Size))
{
*Block = Blocks[i].Base;
Blocks[i].Base += Size;
Blocks[i].Size -= Size;
if (Blocks[i].Size == 0)
Blocks[i].InUse = false;
OS_UnLockMutex(&Lock);
InAllocate = false;
return AllocatorNoError;
}
//
#if 0
{
report(severity_info, "Waiting for memory \n");
for (i = 0; i < ALLOCATOR_SIMPLE_MAX_BLOCKS; i++)
if (Blocks[i].InUse)
report(severity_info, " %08x - %06x\n", Blocks[i].Base, Blocks[i].Size);
}
#endif
//
OS_UnLockMutex(&Lock);
if (!NonBlocking)
OS_WaitForEvent(&EntryFreed, OS_INFINITE);
}
while (!NonBlocking && !BeingDeleted);
InAllocate = false;
return AllocatorUnableToAllocate;
}
////////////////////////////////////////////////////////////////////////////
///
/// Release any buffers queued within the StreamBuffer structure.
///
/// Pass any buffer held on the Manifestor_Audio_c::StreamBuffer structure
/// onto the output ring.
///
/// The super-class will tidy up an queued events.
///
ManifestorStatus_t Manifestor_Audio_c::ReleaseQueuedDecodeBuffers()
{
ManifestorStatus_t Status;
MANIFESTOR_DEBUG(">><<\n");
OS_LockMutex(&BufferQueueLock);
//
// Emit all the queued buffers
//
for (unsigned int BufferIndex = BufferQueueHead; BufferIndex != INVALID_BUFFER_ID; BufferIndex = StreamBuffer[BufferIndex].NextIndex)
{
Status = ReleaseBuffer(BufferIndex);
if (Status != ManifestorNoError)
{
MANIFESTOR_ERROR("Sub-class got cross when we tried to release a buffer - ignoring them\n");
}
QueuedBufferCount--;
if (StreamBuffer[BufferIndex].EventPending)
ServiceEventQueue(BufferIndex);
OutputRing->Insert((unsigned int) StreamBuffer[BufferIndex].Buffer);
}
BufferQueueHead = INVALID_BUFFER_ID;
BufferQueueTail = ANY_BUFFER_ID;
OS_UnLockMutex(&BufferQueueLock);
return Manifestor_Base_c::ReleaseQueuedDecodeBuffers();
}
AllocatorStatus_t AllocatorSimple_c::Free(void)
{
int i;
unsigned int LocalBufferSize;
unsigned int MaxBlockSize;
unsigned char *LocalOffset;
OS_LockMutex(&Lock);
memset(Blocks, 0x00, sizeof(Blocks));
LocalBufferSize = BufferSize;
LocalOffset = NULL;
MaxBlockSize = 0x4000000 - ((uintptr_t)PhysicalAddress & 0x03ffffff);
HighestUsedBlockIndex = 0;
for (i = 0; ((LocalBufferSize != 0) && (i < ALLOCATOR_SIMPLE_MAX_BLOCKS)); i++)
{
Blocks[i].InUse = true;
Blocks[i].Size = min(LocalBufferSize, MaxBlockSize);
Blocks[i].Base = LocalOffset;
LocalBufferSize -= Blocks[i].Size;
LocalOffset += Blocks[i].Size;
MaxBlockSize = 0x4000000;
HighestUsedBlockIndex = i;
}
OS_SetEvent(&EntryFreed);
OS_UnLockMutex(&Lock);
return AllocatorNoError;
}
OS_Status_t OS_ResetEvent(OS_Event_t *Event)
{
OS_LockMutex(&((*Event)->Mutex));
(*Event)->Valid = false;
OS_UnLockMutex(&((*Event)->Mutex));
return OS_NO_ERROR;
}
BufferStatus_t BufferManager_Generic_c::CreatePool(
BufferPool_t *Pool,
BufferType_t Type,
unsigned int NumberOfBuffers,
unsigned int Size,
void *MemoryPool[3],
void *ArrayOfMemoryBlocks[][3],
char *DeviceMemoryPartitionName)
{
BufferStatus_t Status;
BufferDataDescriptor_t *Descriptor;
BufferPool_Generic_t NewPool;
//
// Initialize the return parameter
//
*Pool = NULL;
//
// Get the descriptor
//
Status = GetDescriptor(Type, BufferDataTypeBase, &Descriptor);
if (Status != BufferNoError)
return Status;
//
// Perform simple parameter checks
//
if (Pool == NULL)
{
report(severity_error, "BufferManager_Generic_c::CreatePool - Null supplied as place to return Pool pointer.\n");
return BufferError;
}
if (Descriptor->AllocateOnPoolCreation &&
(NumberOfBuffers == NOT_SPECIFIED))
{
report(severity_error, "BufferManager_Generic_c::CreatePool - Unable to allocate on creation, NumberOfBuffers not specified.\n");
return BufferParametersIncompatibleWithAllocationSource;
}
//
// Perform the creation
//
NewPool = new BufferPool_Generic_c(this, Descriptor, NumberOfBuffers, Size, MemoryPool, ArrayOfMemoryBlocks, DeviceMemoryPartitionName);
if ((NewPool == NULL) || (NewPool->InitializationStatus != BufferNoError))
{
BufferStatus_t Status;
Status = BufferInsufficientMemoryForPool;
if (NewPool != NULL)
Status = NewPool->InitializationStatus;
report(severity_error, "BufferManager_Generic_c::CreatePool - Failed to create pool (%08x).\n", Status);
return Status;
}
//
// Insert the pool into our list
//
OS_LockMutex(&Lock);
NewPool->Next = ListOfBufferPools;
ListOfBufferPools = NewPool;
OS_UnLockMutex(&Lock);
//
*Pool = NewPool;
return BufferNoError;
}
////////////////////////////////////////////////////////////////////////////
///
/// Populate the DecodeContext structure with parameters for MPEG audio.
/// This can be over-ridden by WMA to not have any output buffer, as it will
/// do an MME_SEND_BUFFERS instead of MME_TRANSFORM
///
CodecStatus_t Codec_MmeAudio_c::FillOutDecodeContext(void)
{
CodecStatus_t Status;
//
// Obtain a new buffer if needed
//
if (CurrentDecodeBufferIndex == INVALID_INDEX)
{
Status = GetDecodeBuffer();
if (Status != CodecNoError)
{
report(severity_error, "Codec_MmeAudio_c::Input(%s) - Failed to get decode buffer.\n", Configuration.CodecName);
ReleaseDecodeContext(DecodeContext);
return Status;
}
}
//
// Record the buffer being used in the decode context
//
DecodeContext->BufferIndex = CurrentDecodeBufferIndex;
//
// Provide default values for the input and output buffers (the sub-class can change this if it wants to).
//
// Happily the audio firmware is less mad than the video firmware on the subject of buffers.
//
memset(&DecodeContext->MMECommand, 0x00, sizeof(MME_Command_t));
SetCommandIO();
OS_LockMutex(&Lock);
DecodeContext->DecodeInProgress = true;
BufferState[CurrentDecodeBufferIndex].DecodesInProgress++;
BufferState[CurrentDecodeBufferIndex].OutputOnDecodesComplete = true;
OS_UnLockMutex(&Lock);
return CodecNoError;
}
OS_Status_t OS_WaitForEvent(OS_Event_t *Event, OS_Timeout_t Timeout)
{
if (!((*Event)->Valid))
{
OS_LockMutex(&((*Event)->Mutex));
if (!((*Event)->Valid)) // NOTE this may have changed before we locked access
{
OS_UnLockMutex(&((*Event)->Mutex));
OSDEV_WaitForQueue((*Event)->Queue, &((*Event)->Valid), (Timeout == OS_INFINITE) ? OSDEV_INFINITE : Timeout);
return ((*Event)->Valid) ? OS_NO_ERROR : OS_TIMED_OUT;
}
else
OS_UnLockMutex(&((*Event)->Mutex));
}
return OS_NO_ERROR;
}
DemultiplexorStatus_t Demultiplexor_Base_c::RemoveStream(
DemultiplexorContext_t Context,
unsigned int StreamIdentifier)
{
unsigned int i, j;
DemultiplexorBaseContext_t BaseContext = (DemultiplexorBaseContext_t)Context;
//
report(severity_info, "Demultiplexor_Base_c::RemoveStream - %d.\n", StreamIdentifier);
OS_LockMutex(&BaseContext->Lock);
for (i = 0; i < DEMULTIPLEXOR_MAX_STREAMS; i++)
if (BaseContext->Streams[i].Identifier == StreamIdentifier)
{
//
// Scan, and if no other identifier (pid in ts) is injecting to the same stream
// then we can detach the multiplexor from it. NOTE this means we will work if you
// have multiple identifiers going to the same stream.
//
for (j = 0; j < DEMULTIPLEXOR_MAX_STREAMS; j++)
if ((j != i) && (BaseContext->Streams[i].Stream == BaseContext->Streams[j].Stream))
break;
if (j == DEMULTIPLEXOR_MAX_STREAMS)
Player->DetachDemultiplexor(BaseContext->Streams[i].Stream);
//
// release and return.
//
BaseContext->Streams[i].Stream = NULL;
BaseContext->Streams[i].Identifier = INVALID_INDEX;
}
//
OS_UnLockMutex(&BaseContext->Lock);
return DemultiplexorNoError;
}
OS_Status_t OS_SetEvent(OS_Event_t *Event)
{
OS_LockMutex(&((*Event)->Mutex));
(*Event)->Valid = true;
OSDEV_WakeUpQueue((*Event)->Queue);
OS_UnLockMutex(&((*Event)->Mutex));
return OS_NO_ERROR;
}
BufferStatus_t Buffer_Generic_c::DetachMetaData(
MetaDataType_t Type )
{
BlockDescriptor_t *LocationOfBlockPointer;
BlockDescriptor_t Block;
//
// First find the descriptor block in the buffer
//
AssertNonZeroReferenceCount( "Buffer_Generic_c::DetachMetaData" );
OS_LockMutex( &Lock );
for( LocationOfBlockPointer = &ListOfMetaData;
*LocationOfBlockPointer != NULL;
LocationOfBlockPointer = &((*LocationOfBlockPointer)->Next) )
if( ((*LocationOfBlockPointer)->Descriptor->Type == Type) && !((*LocationOfBlockPointer)->AttachedToPool) )
break;
if( *LocationOfBlockPointer == NULL )
{
report( severity_error, "Buffer_Generic_c::DetachMetaData - No meta data of the specified type is attached to the buffer.\n" );
OS_UnLockMutex( &Lock );
return BufferMetaDataTypeNotFound;
}
//
// Get a local block pointer, and unthread the block from the list
//
Block = *LocationOfBlockPointer;
*LocationOfBlockPointer = Block->Next;
//
// Free up the memory, and delete the block record.
//
Pool->DeAllocateMemoryBlock( Block );
delete Block;
//
OS_UnLockMutex( &Lock );
return BufferNoError;
}
OS_Status_t OS_ReInitializeEvent(OS_Event_t *Event)
{
OS_LockMutex(&((*Event)->Mutex));
(*Event)->Valid = false;
OSDEV_ReInitializeWaitQueue((*Event)->Queue);
OS_UnLockMutex(&((*Event)->Mutex));
return OS_NO_ERROR;
}
AllocatorStatus_t AllocatorSimple_c::LargestFreeBlock(unsigned int *Size)
{
int Index;
OS_LockMutex(&Lock);
Index = LargestFreeBlock();
*Size = (Index < 0) ? 0 : Blocks[Index].Size;
OS_UnLockMutex(&Lock);
return AllocatorNoError;
}
RingStatus_t RingGeneric_c::Flush( void )
{
OS_LockMutex( &Lock );
NextExtract = 0;
NextInsert = 0;
OS_UnLockMutex( &Lock );
return RingNoError;
}
void BufferManager_Generic_c::Dump(unsigned int Flags)
{
unsigned int i;
BufferPool_Generic_t Pool;
//
if ((Flags & DumpBufferTypes) != 0)
{
report(severity_info, "Dump of Buffer Types\n");
for (i = 0; i < TypeDescriptorCount; i++)
if ((TypeDescriptors[i].Type & TYPE_TYPE_MASK) == BufferDataTypeBase)
{
report(severity_info, " Buffer Type $%04x - '%s'\n", TypeDescriptors[i].Type,
(TypeDescriptors[i].TypeName == NULL) ? "Unnamed" : TypeDescriptors[i].TypeName);
report(severity_info, "\tAllocationSource = %s\n", (TypeDescriptors[i].AllocationSource <= AllocateIndividualSuppliedBlocks) ?
AllocationSources[TypeDescriptors[i].AllocationSource] :
"Invalid");
report(severity_info, "\tRequiredAllignment = %08x, AllocationUnitSize = %08x, AllocateOnPoolCreation = %d\n",
TypeDescriptors[i].RequiredAllignment, TypeDescriptors[i].AllocationUnitSize, TypeDescriptors[i].AllocateOnPoolCreation);
report(severity_info, "\tHasFixedSize = %d, FixedSize = %08x\n",
TypeDescriptors[i].HasFixedSize, TypeDescriptors[i].FixedSize);
}
report(severity_info, "\n");
}
//
if ((Flags & DumpMetaDataTypes) != 0)
{
report(severity_info, "Dump of Meta Data Types\n");
for (i = 0; i < TypeDescriptorCount; i++)
if ((TypeDescriptors[i].Type & TYPE_TYPE_MASK) == MetaDataTypeBase)
{
report(severity_info, " Buffer Type $%04x - '%s'\n", TypeDescriptors[i].Type,
(TypeDescriptors[i].TypeName == NULL) ? "Unnamed" : TypeDescriptors[i].TypeName);
report(severity_info, "\tAllocationSource = %s\n", (TypeDescriptors[i].AllocationSource <= AllocateIndividualSuppliedBlocks) ?
AllocationSources[TypeDescriptors[i].AllocationSource] :
"Invalid");
report(severity_info, "\tRequiredAllignment = %08x, AllocationUnitSize = %08x, AllocateOnPoolCreation = %d\n",
TypeDescriptors[i].RequiredAllignment, TypeDescriptors[i].AllocationUnitSize, TypeDescriptors[i].AllocateOnPoolCreation);
report(severity_info, "\tHasFixedSize = %d, FixedSize = %08x\n",
TypeDescriptors[i].HasFixedSize, TypeDescriptors[i].FixedSize);
}
report(severity_info, "\n");
}
//
if ((Flags & DumpListPools) != 0)
{
report(severity_info, "Dump of Buffer Pools\n");
OS_LockMutex(&Lock);
for (Pool = ListOfBufferPools;
Pool != NULL;
Pool = Pool->Next)
{
Pool->Dump(Flags);
}
OS_UnLockMutex(&Lock);
}
}
////////////////////////////////////////////////////////////////////////////
///
/// Push a previously dequeued buffer back to the head of the buffer queue.
///
/// Must be called only from the mixer playback thread.
///
/// \param BufferIndex Index of the previously dequeued buffer.
///
void Manifestor_Audio_c::PushBackBuffer(unsigned int BufferIndex)
{
OS_LockMutex(&BufferQueueLock);
StreamBuffer[BufferIndex].NextIndex = BufferQueueHead;
if (BufferQueueHead == INVALID_BUFFER_ID)
BufferQueueTail = BufferIndex;
BufferQueueHead = BufferIndex;
QueuedBufferCount++;
NotQueuedBufferCount--;
OS_UnLockMutex(&BufferQueueLock);
}
BufferStatus_t Buffer_Generic_c::DetachBuffer( Buffer_t Buffer )
{
unsigned int i;
//
AssertNonZeroReferenceCount( "Buffer_Generic_c::DetachBuffer" );
OS_LockMutex( &Lock );
for( i=0; i<MAX_ATTACHED_BUFFERS; i++ )
if( AttachedBuffers[i] == Buffer )
{
AttachedBuffers[i] = NULL;
OS_UnLockMutex( &Lock );
Buffer->DecrementReferenceCount( IdentifierAttachedToOtherBuffer );
return BufferNoError;
}
report( severity_error, "Buffer_Generic_c::DetachBuffer - Attached buffer not found.\n" );
OS_UnLockMutex( &Lock );
return BufferAttachmentNotFound;
}
BufferStatus_t Buffer_Generic_c::AttachBuffer( Buffer_t Buffer )
{
unsigned int i;
//
AssertNonZeroReferenceCount( "Buffer_Generic_c::AttachBuffer" );
OS_LockMutex( &Lock );
for( i=0; i<MAX_ATTACHED_BUFFERS; i++ )
if( AttachedBuffers[i] == NULL )
{
AttachedBuffers[i] = Buffer;
OS_UnLockMutex( &Lock );
Buffer->IncrementReferenceCount();
return BufferNoError;
}
report( severity_error, "Buffer_Generic_c::AttachBuffer - Too many buffers attached to this one.\n" );
OS_UnLockMutex( &Lock );
return BufferTooManyAttachments;
}
AllocatorStatus_t AllocatorSimple_c::AllocateLargest(
unsigned int *Size,
unsigned char **Block,
bool NonBlocking)
{
int Index;
//
if (this == NULL)
return AllocatorError;
//
InAllocate = true;
do
{
OS_LockMutex(&Lock);
OS_ResetEvent(&EntryFreed);
//
if (BeingDeleted)
break;
//
Index = LargestFreeBlock();
if ((Index >= 0) && (Blocks[Index].Size >= (*Size)))
{
*Size = Blocks[Index].Size;
*Block = Blocks[Index].Base;
Blocks[Index].Size = 0;
Blocks[Index].InUse = false;
OS_UnLockMutex(&Lock);
InAllocate = false;
return AllocatorNoError;
}
OS_UnLockMutex(&Lock);
if (!NonBlocking)
OS_WaitForEvent(&EntryFreed, OS_INFINITE);
}
while (!NonBlocking && !BeingDeleted);
InAllocate = false;
return AllocatorUnableToAllocate;
}
BufferStatus_t Buffer_Generic_c::ObtainMetaDataReference(
MetaDataType_t Type,
void **Pointer )
{
BlockDescriptor_t Block;
//
// Find the descriptor block
//
AssertNonZeroReferenceCount( "Buffer_Generic_c::ObtainMetaDataReference " );
OS_LockMutex( &Lock );
for( Block = ListOfMetaData;
Block != NULL;
Block = Block->Next )
if( Block->Descriptor->Type == Type )
break;
if( Block == NULL )
{
report( severity_error, "Buffer_Generic_c::ObtainMetaDataReference - No meta data of the specified type is attached to the buffer.\n" );
OS_UnLockMutex( &Lock );
return BufferMetaDataTypeNotFound;
}
//
// Return the appropriate value
//
*Pointer = Block->Address[CachedAddress];
OS_UnLockMutex( &Lock );
//
return BufferNoError;
}
StackStatus_t StackGeneric_c::Pop(unsigned int *Value)
{
//
// If there is nothing in the Stack we return
//
if (Level != 0)
{
OS_LockMutex(&Lock);
*Value = Storage[--Level];
OS_UnLockMutex(&Lock);
return StackNoError;
}
return StackNothingToGet;
}
