122 lines
2.8 KiB
C++
122 lines
2.8 KiB
C++
//---------------------------------------------------------------------------
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//
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// Module: gpi.cpp
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//
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// Description:
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//
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// Graph Pin Info Class
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//
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//@@BEGIN_MSINTERNAL
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// Development Team:
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// Mike McLaughlin
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//
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// History: Date Author Comment
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//
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// To Do: Date Author Comment
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//
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//@@END_MSINTERNAL
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1996-1999 Microsoft Corporation. All Rights Reserved.
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//
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//---------------------------------------------------------------------------
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#include "common.h"
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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NTSTATUS
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CGraphPinInfo::Create(
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PGRAPH_PIN_INFO *ppGraphPinInfo,
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PPIN_INFO pPinInfo,
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ULONG ulFlags,
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PGRAPH_NODE pGraphNode
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)
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{
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PGRAPH_PIN_INFO pGraphPinInfo = NULL;
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NTSTATUS Status = STATUS_SUCCESS;
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Assert(pPinInfo);
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Assert(pGraphNode);
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FOR_EACH_LIST_ITEM(&pGraphNode->lstGraphPinInfo, pGraphPinInfo) {
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if(pGraphPinInfo->pPinInfo == pPinInfo &&
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((pGraphPinInfo->ulFlags ^ ulFlags) &
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GPI_FLAGS_RESERVE_PIN_INSTANCE) == 0) {
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pGraphPinInfo->AddRef();
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goto exit;
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}
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} END_EACH_LIST_ITEM
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pGraphPinInfo = new GRAPH_PIN_INFO(pPinInfo, ulFlags, pGraphNode);
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if(pGraphPinInfo == NULL) {
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Status = STATUS_INSUFFICIENT_RESOURCES;
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goto exit;
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}
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DPF2(80, "CGraphPinInfo::Create %08x GN %08x", pGraphPinInfo, pGraphNode);
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exit:
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*ppGraphPinInfo = pGraphPinInfo;
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return(Status);
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}
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CGraphPinInfo::CGraphPinInfo(
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PPIN_INFO pPinInfo,
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ULONG ulFlags,
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PGRAPH_NODE pGraphNode
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)
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{
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Assert(pPinInfo);
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Assert(pGraphNode);
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this->pPinInfo = pPinInfo;
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this->ulFlags = ulFlags;
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if(ulFlags & GPI_FLAGS_RESERVE_PIN_INSTANCE) {
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this->cPinInstances.PossibleCount = 1;
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this->cPinInstances.CurrentCount = 0;
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}
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else {
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this->cPinInstances = pPinInfo->cPinInstances;
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}
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AddRef();
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AddList(&pGraphNode->lstGraphPinInfo);
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DPF2(80, "CGraphPinInfo: %08x GN %08x", this, pGraphNode);
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}
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CGraphPinInfo::~CGraphPinInfo(
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)
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{
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DPF1(80, "~CGraphPinInfo: %08x", this);
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Assert(this);
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RemoveList();
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}
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//---------------------------------------------------------------------------
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#ifdef DEBUG
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ENUMFUNC
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CGraphPinInfo::Dump(
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)
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{
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dprintf("GPI: %08x cRef %08x PI %08x F %08x P%-2d C%-1d #%d %s\n",
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this,
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cReference,
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GetPinInfo(),
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ulFlags,
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GetPinInstances()->PossibleCount,
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GetPinInstances()->CurrentCount,
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GetPinInfo()->PinId,
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GetPinInfo()->pFilterNode->DumpName());
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return(STATUS_CONTINUE);
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}
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#endif
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