Source code of Windows XP (NT5)
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///////////////////////////////////////////////////////////////////////////////
// Copyright (C) Microsoft Corporation, 2000.
//
// debugmon.cpp
//
// Direct3D Debug Monitor
//
//
// MUST BE KEPT IN SYNC WITH debugmon.cpp IN REF8\RAST
//
///////////////////////////////////////////////////////////////////////////////
/*
WORKLIST
- vertex shader source <-> debugger
*/
#include "pch.cpp"
#pragma hdrstop
#include <process.h>
#include "debugmon.hpp"
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
D3DDebugMonitor::D3DDebugMonitor( void )
{
// get pid and create DebugTargetContext sharedmem
int pid = _getpid();
m_pTgtCtxSM = new D3DSharedMem( sizeof(DebugTargetContext), D3DDM_TGTCTX_SM "%d", pid );
m_pTgtCtx = (DebugTargetContext*)(m_pTgtCtxSM->GetPtr());
memset( m_pTgtCtx, 0x0, sizeof(DebugTargetContext) );
m_pTgtCtx->Version = D3DDM_VERSION;
m_pTgtCtx->ProcessID = pid;
// create target events
char name[128];
_snprintf( name, 128, D3DDM_TGT_EVENTBP "%d", m_pTgtCtx->ProcessID );
m_hTgtEventBP = CreateEvent( NULL, FALSE, FALSE, name );
DDASSERT( m_hTgtEventBP );
_snprintf( name, 128, D3DDM_TGT_EVENTACK "%d", m_pTgtCtx->ProcessID );
m_hTgtEventAck = CreateEvent( NULL, FALSE, FALSE, name );
DDASSERT( m_hTgtEventAck );
// null out monitor connections
m_pMonCtx = NULL;
m_pMonCtxSM = NULL;
m_pCmdData = NULL;
m_pCmdDataSM = NULL;
m_hMonEventCmd = 0;
}
//-----------------------------------------------------------------------------
D3DDebugMonitor::~D3DDebugMonitor( void )
{
// send disconnect event to monitor
m_pTgtCtx->EventStatus = D3DDM_EVENT_TARGETEXIT;
SetEvent( m_hTgtEventBP );
DetachMonitorConnection();
CloseHandle( m_hTgtEventBP );
CloseHandle( m_hTgtEventAck );
delete m_pTgtCtxSM;
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
HRESULT
D3DDebugMonitor::AttachToMonitor( int iMon )
{
#if(D3D_DEBUGMON>0x00)
if (iMon < 1) return E_FAIL;
if (MonitorConnected() || !m_bDbgMonConnectionEnabled)
{
return E_FAIL;
}
// attach to monitor context
m_pMonCtxSM = new D3DSharedMem( sizeof(DebugMonitorContext), D3DDM_MONCTX_SM "%d", iMon );
if ( !m_pMonCtxSM->AlreadyExisted() ) goto _fail_return; // monitor not there
// get pointer to monitor context bits
m_pMonCtx = (const DebugMonitorContext*)m_pMonCtxSM->GetPtr();
if (m_pMonCtx->TargetID) goto _fail_return; // monitor already taken
// request attachment to this context (cast to non-const just this once...)
((DebugMonitorContext*)m_pMonCtx)->TargetIDRequest = m_pTgtCtx->ProcessID;
// attach to monitor event acknowledge
char name[128];
_snprintf( name, 128, D3DDM_MON_EVENTCMD "%d", iMon );
m_hMonEventCmd = OpenEvent( EVENT_ALL_ACCESS, NULL, name );
// signal monitor via it's own event (just this once) and wait for reply on our ack
D3D_INFO(0, "D3DDebugTarget - attempting to attach to monitor");
SignalObjectAndWait( m_hMonEventCmd, m_hTgtEventAck, INFINITE, FALSE );
if ( m_pMonCtx->TargetID != m_pTgtCtx->ProcessID ) goto _fail_return;
// monitor is attached to this target
m_pTgtCtx->MonitorID = iMon;
// attach to command data SM
m_pCmdDataSM = new D3DSharedMem( D3DDM_CMDDATA_SIZE,
D3DDM_CMDDATA_SM "%d", m_pTgtCtx->MonitorID );
m_pCmdData = (DebugMonitorContext*)(m_pCmdDataSM->GetPtr());
// tell monitor that we are done attaching
SetEvent( m_hTgtEventBP );
D3D_INFO(0, "D3DDebugTarget - debug monitor attached");
return S_OK;
_fail_return:
if (m_pMonCtxSM) delete m_pMonCtxSM;
m_pMonCtxSM = NULL;
m_pMonCtx = NULL;
if (m_hMonEventCmd) CloseHandle( m_hMonEventCmd ); m_hMonEventCmd = 0;
return E_FAIL;
#else
return E_FAIL;
#endif
}
//-----------------------------------------------------------------------------
// drop connection
//-----------------------------------------------------------------------------
void
D3DDebugMonitor::DetachMonitorConnection( void )
{
#if(D3D_DEBUGMON>0x00)
#ifdef DBG
// SD build complains in free build about empty statement in this if
// so only do this in debug (MonitorConnected has no evil side effects)
if (MonitorConnected())
D3D_INFO(0, "D3DDebugTarget - debug monitor detached");
#endif // DBG
// drop attachment to monitor and delete monitor context attachment
m_pTgtCtx->MonitorID = 0; // let monitor know it is being dropped
if (NULL != m_pMonCtxSM) delete m_pMonCtxSM; m_pMonCtxSM = NULL;
m_pMonCtx = NULL;
if (NULL != m_pCmdDataSM) delete m_pCmdDataSM; m_pCmdDataSM = NULL;
m_pCmdData = NULL;
ResetEvent( m_hMonEventCmd );
if (m_hMonEventCmd) CloseHandle( m_hMonEventCmd ); m_hMonEventCmd = NULL;
#endif
}
//-----------------------------------------------------------------------------
// check for lost monitor connection, and clean up if necessary
//-----------------------------------------------------------------------------
BOOL
D3DDebugMonitor::CheckLostMonitorConnection( void )
{
#if(D3D_DEBUGMON>0x00)
if ( !m_pMonCtx )
{
// not connected
return TRUE;
}
if ( m_pMonCtx->TargetID != m_pTgtCtx->ProcessID )
{
// we have been disconnected
DetachMonitorConnection();
return TRUE;
}
return FALSE;
#else
return TRUE;
#endif
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
BOOL
D3DDebugMonitor::IsEventBreak( UINT32 EventType )
{
BOOL bReturn = FALSE;
#define _D3DDM_EVENT_CASE( _Event) \
case D3DDM_EVENT_##_Event: if (MonitorEventBP() & D3DDM_EVENT_##_Event) { bReturn = TRUE; } break
// keep this as single line per event - convenient place to set debugger breakpoints
switch ( EventType )
{
_D3DDM_EVENT_CASE(RSTOKEN);
_D3DDM_EVENT_CASE(BEGINSCENE);
_D3DDM_EVENT_CASE(ENDSCENE);
_D3DDM_EVENT_CASE(VERTEX);
_D3DDM_EVENT_CASE(VERTEXSHADERINST);
_D3DDM_EVENT_CASE(PRIMITIVE);
_D3DDM_EVENT_CASE(PIXEL);
_D3DDM_EVENT_CASE(PIXELSHADERINST);
default: break;
}
return bReturn;
}
//-----------------------------------------------------------------------------
//
//-----------------------------------------------------------------------------
HRESULT
D3DDebugMonitor::MonitorBreakpoint( void )
{
CheckLostMonitorConnection();
if ( !MonitorConnected() ) return S_OK;
// tell monitor that we are at an event breakpoint
SetEvent( m_hTgtEventBP );
D3D_INFO(0, "D3DDebugTarget - stopped in debug monitor");
// spin here responding to commands until command given to go
BOOL bResume = FALSE;
while ( !bResume )
{
// wait for command to be issued (or monitor dropped)
WaitForSingleObject( m_hMonEventCmd, INFINITE );
if ( CheckLostMonitorConnection() )
{
bResume = TRUE;
break;
}
// process command
switch ( m_pMonCtx->Command & D3DDM_CMD_MASK )
{
case D3DDM_CMD_GO:
m_pTgtCtx->CommandBufferSize = 0;
bResume = TRUE;
break;
default:
ProcessMonitorCommand();
break;
}
// acknowledge command processing done
SetEvent( m_hTgtEventAck );
}
D3D_INFO(0, "D3DDebugTarget - resumed");
return S_OK;
}
//-----------------------------------------------------------------------------
//
// Generic shared memory object, implemented using Win32 file mapping.
// _snprintf interface for name.
//
// 6/20/2000(RichGr) - IA64: Change first parameter from int to INT_PTR so that
// all parameters are the same length. This is needed to make the va_start
// macro work correctly.
//
//-----------------------------------------------------------------------------
D3DSharedMem::D3DSharedMem( INT_PTR cbSize, const char* pszFormat, ... )
{
m_pMem = NULL;
char pszName[1024] = "\0";
va_list marker;
va_start(marker, pszFormat);
_vsnprintf(pszName+lstrlen(pszName), 1024-lstrlen(pszName), pszFormat, marker);
// 6/20/2000(RichGr) - IA64: Change file handle from (HANDLE)0xFFFFFFF to INVALID_HANDLE_VALUE.
// This generates the correct -1 value for both 32-bit and 64-bit builds.
m_hFileMap = CreateFileMapping(INVALID_HANDLE_VALUE,
NULL, PAGE_READWRITE, 0, (DWORD)cbSize, pszName);
// check if it existed already
m_bAlreadyExisted = (m_hFileMap != NULL) && (GetLastError() == ERROR_ALREADY_EXISTS);
if (NULL == m_hFileMap)
{
DDASSERT(0);
}
else
{
// Map a view of the file into the address space.
m_pMem = (void *)MapViewOfFile(m_hFileMap, FILE_MAP_READ | FILE_MAP_WRITE, 0, 0, 0);
if (NULL == m_pMem)
{
DDASSERT(0);
if (NULL != m_hFileMap) CloseHandle(m_hFileMap);
}
}
}
D3DSharedMem::~D3DSharedMem(void)
{
if (NULL != m_pMem) UnmapViewOfFile((LPVOID) m_pMem);
if (NULL != m_hFileMap) CloseHandle(m_hFileMap);
}
///////////////////////////////////////////////////////////////////////////////
// end