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460 lines
12 KiB
460 lines
12 KiB
//---------------------------------------------------------------------------
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//
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// Module: gn.cpp
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//
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// Description:
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//
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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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ULONG gcGraphRecursion = 0;
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//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
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CGraphNode::CGraphNode(
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PDEVICE_NODE pDeviceNode,
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ULONG ulFlags
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)
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{
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Assert(pDeviceNode);
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this->pDeviceNode = pDeviceNode;
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this->ulFlags = ulFlags;
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AddList(&pDeviceNode->lstGraphNode);
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DPF2(80, "CGraphNode %08x, DN: %08x", this, pDeviceNode);
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}
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CGraphNode::~CGraphNode(
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)
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{
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DPF1(80, "~CGraphNode: %08x", this);
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Assert(this);
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RemoveList();
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}
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NTSTATUS
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CGraphNode::Create(
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)
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{
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PGRAPH_NODE_INSTANCE pGraphNodeInstance;
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PLOGICAL_FILTER_NODE pLogicalFilterNode;
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NTSTATUS Status = STATUS_SUCCESS;
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DPF3(80, "CGraphNode::Create: GN %08x F %08x %s",
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this,
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this->ulFlags,
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pDeviceNode->DumpName());
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FOR_EACH_LIST_ITEM(&pDeviceNode->lstLogicalFilterNode, pLogicalFilterNode) {
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Status = Create(pLogicalFilterNode);
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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} END_EACH_LIST_ITEM
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if(!lstLogicalFilterNodeNoBypass.IsLstEmpty()) {
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lstStartNode.EnumerateList(CStartNode::RemoveBypassPaths, this);
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}
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if(this->ulFlags & FLAGS_MIXER_TOPOLOGY) {
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lstStartNode.EnumerateList(CStartNode::RemoveConnectedStartNode, this);
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}
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lstStartInfo.EnumerateList(CStartInfo::CreatePinInfoConnection, this);
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pGraphNodeInstance = new GRAPH_NODE_INSTANCE(this);
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if(pGraphNodeInstance == NULL) {
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Status = STATUS_INSUFFICIENT_RESOURCES;
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Trap();
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goto exit;
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}
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Status = pGraphNodeInstance->Create();
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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//
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// The "ulSysaudioNodeNumber" field in the topology node isn't
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// valid until CGraphNodeInstance::Create and they are only valid
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// for this pGraphNode.
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//
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lstStartInfo.EnumerateList(CStartInfo::EnumStartInfo);
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delete pGraphNodeInstance;
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exit:
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return(Status);
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}
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NTSTATUS
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CGraphNode::Create(
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PLOGICAL_FILTER_NODE pLogicalFilterNode
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)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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ULONG ulFlagsCurrent;
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PPIN_NODE pPinNode;
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DPF2(80, "CGraphNode::Create: LFN %08x %s",
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pLogicalFilterNode,
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pLogicalFilterNode->pFilterNode->DumpName());
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Assert(pLogicalFilterNode);
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FOR_EACH_LIST_ITEM(&pLogicalFilterNode->lstPinNode, pPinNode) {
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Assert(pPinNode);
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Assert(pPinNode->pPinInfo);
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ASSERT(
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(pLogicalFilterNode->GetFlags() & LFN_FLAGS_REFLECT_DATARANGE) == 0);
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gcGraphRecursion = 0;
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ulFlagsCurrent = 0;
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// Determine whether it is an input stream or output stream
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if(pPinNode->pPinInfo->DataFlow == KSPIN_DATAFLOW_IN) {
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ulFlagsCurrent |= LFN_FLAGS_CONNECT_RENDER;
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}
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if(pPinNode->pPinInfo->DataFlow == KSPIN_DATAFLOW_OUT) {
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ulFlagsCurrent |= LFN_FLAGS_CONNECT_CAPTURE;
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}
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// Determine the kind of graph to build
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if(this->ulFlags & FLAGS_MIXER_TOPOLOGY) {
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ulFlagsCurrent |= LFN_FLAGS_CONNECT_MIXER_TOPOLOGY;
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}
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else {
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ulFlagsCurrent |= LFN_FLAGS_CONNECT_NORMAL_TOPOLOGY;
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}
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Status = CreateGraph(
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pPinNode,
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NULL,
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pLogicalFilterNode,
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NULL,
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ulFlagsCurrent,
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pPinNode->GetOverhead() + pLogicalFilterNode->GetOverhead());
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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} END_EACH_LIST_ITEM
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exit:
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return(Status);
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}
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NTSTATUS
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CGraphNode::CreateGraph(
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PPIN_NODE pPinNode,
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PCONNECT_NODE pConnectNodePrevious,
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PLOGICAL_FILTER_NODE pLogicalFilterNodePrevious,
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PGRAPH_PIN_INFO pGraphPinInfoPrevious,
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ULONG ulFlagsCurrent,
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ULONG ulOverhead
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)
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{
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PLOGICAL_FILTER_NODE pLogicalFilterNode;
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PGRAPH_PIN_INFO pGraphPinInfo = NULL;
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NTSTATUS Status = STATUS_SUCCESS;
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Assert(this);
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Assert(pPinNode);
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Assert(pPinNode->pPinInfo);
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Assert(pLogicalFilterNodePrevious);
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if(pConnectNodePrevious != NULL) {
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Assert(pConnectNodePrevious);
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}
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ASSERT(pPinNode->pLogicalFilterNode == pLogicalFilterNodePrevious);
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//
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// Don't allow unlimited nesting, allow graphs number of LFNs deep
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//
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if(gcGraphRecursion++ > (gcLogicalFilterNodes + 8)) {
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DPF(10, "CreateGraph: recursion too deep");
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Status = STATUS_STACK_OVERFLOW;
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goto exit;
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}
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if(pGraphPinInfoPrevious == NULL) {
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Status = CGraphPinInfo::Create(
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&pGraphPinInfo,
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pPinNode->pPinInfo,
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0,
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this);
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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pGraphPinInfoPrevious = pGraphPinInfo;
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}
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FOR_EACH_LIST_ITEM(gplstLogicalFilterNode, pLogicalFilterNode) {
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ULONG ulFlagsDiff;
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ASSERT(pLogicalFilterNode->GetOverhead() != OVERHEAD_NONE);
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//ASSERT(pLogicalFilterNode->GetOrder() != ORDER_NONE);
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DPF5(100, "CreateGraph: %s F %x LFN %08x F %x T %x",
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pLogicalFilterNode->pFilterNode->DumpName(),
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ulFlagsCurrent,
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pLogicalFilterNode,
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pLogicalFilterNode->GetFlags(),
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pLogicalFilterNode->GetType());
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//
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// Rule: don't allow the same filter be connected twice
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//
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if(pLogicalFilterNode == pLogicalFilterNodePrevious) {
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DPF1(100, "CreateGraph: same LFN: %08x", pLogicalFilterNode);
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continue;
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}
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ulFlagsDiff = ~(ulFlagsCurrent ^ pLogicalFilterNode->GetFlags());
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if((ulFlagsDiff &
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(LFN_FLAGS_CONNECT_CAPTURE |
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LFN_FLAGS_CONNECT_RENDER)) == 0) {
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DPF1(100, "CreateGraph: i/o no match: LFN %08x",
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pLogicalFilterNode);
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continue;
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}
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if((ulFlagsDiff & LFN_FLAGS_CONNECT_NORMAL_TOPOLOGY) == 0) {
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DPF1(100, "CreateGraph: norm no match: LFN %08x",
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pLogicalFilterNode);
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continue;
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}
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if((ulFlagsDiff & LFN_FLAGS_CONNECT_MIXER_TOPOLOGY) == 0) {
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DPF1(100, "CreateGraph: mixer no match: LFN %08x",
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pLogicalFilterNode);
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continue;
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}
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if(pLogicalFilterNode->GetOrder() <
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pLogicalFilterNodePrevious->GetOrder()) {
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DPF2(100, "CreateGraph: ulOrder(%x) < Previous Order (%x)",
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pLogicalFilterNode->GetOrder(),
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pLogicalFilterNodePrevious->GetOrder());
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continue;
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}
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#ifndef CONNECT_DIRECT_TO_HW
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if(pLogicalFilterNode->GetType() & FILTER_TYPE_PRE_MIXER) {
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if(pLogicalFilterNodePrevious->GetOrder() < ORDER_MIXER) {
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if(gcMixers > 0) {
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// 100
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DPF2(50,
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"CreateGraph: previous order (%x) < ORDER_MIXER LFN %08x",
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pLogicalFilterNodePrevious->GetOrder(),
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pLogicalFilterNode);
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continue;
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}
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}
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}
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#endif
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if(!pLogicalFilterNode->pFilterNode->IsDeviceInterfaceMatch(
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pDeviceNode)) {
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DPF1(100, "CreateGraph: no dev interface match DN %08x",
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pDeviceNode);
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continue;
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}
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//
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// Enumerate each "To" pin on the LFN to see if it matchs the input pin
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//
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Status = CreateGraphToPin(
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pPinNode,
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pConnectNodePrevious,
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pLogicalFilterNode,
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pGraphPinInfoPrevious,
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ulFlagsCurrent,
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ulOverhead);
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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} END_EACH_LIST_ITEM // end each LFN
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Status = CStartNode::Create(
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pPinNode,
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pConnectNodePrevious,
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pGraphPinInfoPrevious,
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ulFlagsCurrent,
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ulOverhead,
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this);
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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exit:
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//
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// Remove the GPI if it doesn't have any other references from SIs or CIs
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//
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if (pGraphPinInfo) {
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pGraphPinInfo->Destroy();
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}
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gcGraphRecursion--;
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return(Status);
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}
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NTSTATUS
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CGraphNode::CreateGraphToPin(
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PPIN_NODE pPinNode,
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PCONNECT_NODE pConnectNodePrevious,
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PLOGICAL_FILTER_NODE pLogicalFilterNode,
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PGRAPH_PIN_INFO pGraphPinInfo,
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ULONG ulFlagsCurrent,
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ULONG ulOverhead
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)
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{
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PCONNECT_NODE pConnectNode = NULL;
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NTSTATUS Status = STATUS_SUCCESS;
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PPIN_NODE pPinNodeTo;
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Assert(this);
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Assert(pPinNode);
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Assert(pPinNode->pPinInfo);
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Assert(pLogicalFilterNode);
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FOR_EACH_LIST_ITEM(&pLogicalFilterNode->lstPinNode, pPinNodeTo) {
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Assert(pPinNodeTo);
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Assert(pPinNodeTo->pPinInfo);
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ASSERT(pPinNodeTo->pLogicalFilterNode == pLogicalFilterNode);
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//
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// The dataflow, communication, interface, medium and data
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// formats must be compatible.
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//
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if(!pPinNode->ComparePins(pPinNodeTo)) {
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DPF2(100, "CreateGraph: pins mis: PN %08x PNTo %08x",
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pPinNode,
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pPinNodeTo);
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continue;
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}
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Status = CConnectNode::Create(
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&pConnectNode,
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pLogicalFilterNode,
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pConnectNodePrevious,
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pGraphPinInfo,
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pPinNode,
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pPinNodeTo,
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ulFlagsCurrent,
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this);
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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//
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// Enumerate each "from" pin on the LFN and recurse building the graph
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//
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Status = CreateGraphFromPin(
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pPinNode,
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pPinNodeTo,
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pConnectNode,
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pLogicalFilterNode,
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pConnectNode->IsPinInstanceReserved() ? NULL : pGraphPinInfo,
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ulFlagsCurrent,
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ulOverhead);
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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//
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// Remove CN if it doesn't have any other refs from other CNs or SNs.
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//
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pConnectNode->Destroy();
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pConnectNode = NULL;
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} END_EACH_LIST_ITEM // end each LFN node "to" pin node
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exit:
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if(!NT_SUCCESS(Status)) {
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//
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// Clean up the last CN created if error
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//
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Trap();
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pConnectNode->Destroy();
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}
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return(Status);
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}
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NTSTATUS
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CGraphNode::CreateGraphFromPin(
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PPIN_NODE pPinNode,
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PPIN_NODE pPinNodeTo,
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PCONNECT_NODE pConnectNode,
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PLOGICAL_FILTER_NODE pLogicalFilterNode,
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PGRAPH_PIN_INFO pGraphPinInfo,
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ULONG ulFlagsCurrent,
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ULONG ulOverhead
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)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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PPIN_NODE pPinNodeFrom;
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Assert(this);
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Assert(pPinNode);
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Assert(pPinNodeTo);
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Assert(pPinNodeTo->pPinInfo);
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Assert(pLogicalFilterNode);
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FOR_EACH_LIST_ITEM(&pLogicalFilterNode->lstPinNode, pPinNodeFrom) {
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ASSERT(pPinNodeFrom->pLogicalFilterNode == pLogicalFilterNode);
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if(pPinNodeTo->pPinInfo == pPinNodeFrom->pPinInfo) {
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continue;
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}
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if(pLogicalFilterNode->GetFlags() & LFN_FLAGS_REFLECT_DATARANGE) {
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pPinNodeFrom = new PIN_NODE(this, pPinNodeFrom);
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if(pPinNodeFrom == NULL) {
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Status = STATUS_INSUFFICIENT_RESOURCES;
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Trap();
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goto exit;
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}
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pPinNodeFrom->pDataRange = pPinNode->pDataRange;
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}
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//
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// Recurse building the graph
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//
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Status = CreateGraph(
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pPinNodeFrom,
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pConnectNode,
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pLogicalFilterNode,
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pGraphPinInfo,
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ulFlagsCurrent,
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ulOverhead +
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pPinNodeFrom->GetOverhead() +
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pLogicalFilterNode->GetOverhead());
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if(!NT_SUCCESS(Status)) {
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Trap();
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goto exit;
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}
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} END_EACH_LIST_ITEM // end each LFN "from" pin node
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exit:
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return(Status);
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}
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//---------------------------------------------------------------------------
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