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source-engine/game/client/vgui_fpspanel.cpp

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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
//=====================================================================================//
#include "cbase.h"
#include "ifpspanel.h"
#include <vgui_controls/Panel.h>
#include "view.h"
#include <vgui/IVGui.h>
#include "VGuiMatSurface/IMatSystemSurface.h"
#include <vgui_controls/Controls.h>
#include <vgui/ISurface.h>
#include <vgui/IScheme.h>
#include <vgui/IPanel.h>
#include "materialsystem/imaterialsystemhardwareconfig.h"
#include "filesystem.h"
#include "../common/xbox/xboxstubs.h"
#include "steam/steam_api.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
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static ConVar cl_showfps( "cl_showfps", "0", 0, "Draw fps meter at top of screen (1 = fps, 2 = smooth fps)" );
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static ConVar cl_showpos( "cl_showpos", "0", 0, "Draw current position at top of screen" );
static ConVar cl_showbattery( "cl_showbattery", "0", 0, "Draw current battery level at top of screen when on battery power" );
extern bool g_bDisplayParticlePerformance;
int GetParticlePerformance();
//-----------------------------------------------------------------------------
// Purpose: Framerate indicator panel
//-----------------------------------------------------------------------------
class CFPSPanel : public vgui::Panel
{
DECLARE_CLASS_SIMPLE( CFPSPanel, vgui::Panel );
public:
CFPSPanel( vgui::VPANEL parent );
virtual ~CFPSPanel( void );
virtual void ApplySchemeSettings(vgui::IScheme *pScheme);
virtual void Paint();
virtual void OnTick( void );
virtual bool ShouldDraw( void );
protected:
MESSAGE_FUNC_INT_INT( OnScreenSizeChanged, "OnScreenSizeChanged", oldwide, oldtall );
private:
void ComputeSize( void );
void InitAverages()
{
m_AverageFPS = -1;
m_lastRealTime = -1;
m_high = -1;
m_low = -1;
}
vgui::HFont m_hFont;
float m_AverageFPS;
float m_lastRealTime;
int m_high;
int m_low;
bool m_bLastDraw;
int m_BatteryPercent;
float m_lastBatteryPercent;
};
#define FPS_PANEL_WIDTH 300
//-----------------------------------------------------------------------------
// Purpose:
// Input : *parent -
//-----------------------------------------------------------------------------
CFPSPanel::CFPSPanel( vgui::VPANEL parent ) : BaseClass( NULL, "CFPSPanel" )
{
SetParent( parent );
SetVisible( false );
SetCursor( null );
SetFgColor( Color( 0, 0, 0, 255 ) );
SetPaintBackgroundEnabled( false );
m_hFont = 0;
m_BatteryPercent = -1;
m_lastBatteryPercent = -1.0f;
ComputeSize();
vgui::ivgui()->AddTickSignal( GetVPanel(), 250 );
m_bLastDraw = false;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CFPSPanel::~CFPSPanel( void )
{
}
//-----------------------------------------------------------------------------
// Purpose: Updates panel to handle the new screen size
//-----------------------------------------------------------------------------
void CFPSPanel::OnScreenSizeChanged(int iOldWide, int iOldTall)
{
BaseClass::OnScreenSizeChanged(iOldWide, iOldTall);
ComputeSize();
}
//-----------------------------------------------------------------------------
// Purpose: Computes panel's desired size and position
//-----------------------------------------------------------------------------
void CFPSPanel::ComputeSize( void )
{
int wide, tall;
vgui::ipanel()->GetSize(GetVParent(), wide, tall );
int x = wide - FPS_PANEL_WIDTH;
int y = 0;
if ( IsX360() )
{
x -= XBOX_MINBORDERSAFE * wide;
y += XBOX_MINBORDERSAFE * tall;
}
SetPos( x, y );
SetSize( FPS_PANEL_WIDTH, 4 * vgui::surface()->GetFontTall( m_hFont ) + 8 );
}
void CFPSPanel::ApplySchemeSettings(vgui::IScheme *pScheme)
{
BaseClass::ApplySchemeSettings(pScheme);
m_hFont = pScheme->GetFont( "DefaultFixedOutline" );
Assert( m_hFont );
ComputeSize();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CFPSPanel::OnTick( void )
{
bool bVisible = ShouldDraw();
if ( IsVisible() != bVisible )
{
SetVisible( bVisible );
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CFPSPanel::ShouldDraw( void )
{
if ( g_bDisplayParticlePerformance )
return true;
if ( ( !cl_showfps.GetInt() || ( gpGlobals->absoluteframetime <= 0 ) ) &&
( !cl_showpos.GetInt() ) )
{
m_bLastDraw = false;
return false;
}
if ( !m_bLastDraw )
{
m_bLastDraw = true;
InitAverages();
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void GetFPSColor( int nFps, unsigned char ucColor[3] )
{
ucColor[0] = 255; ucColor[1] = 0; ucColor[2] = 0;
int nFPSThreshold1 = 20;
int nFPSThreshold2 = 15;
if ( IsPC() && g_pMaterialSystemHardwareConfig->GetDXSupportLevel() >= 95 )
{
nFPSThreshold1 = 60;
nFPSThreshold2 = 50;
}
else if ( IsX360() || g_pMaterialSystemHardwareConfig->GetDXSupportLevel() >= 90 )
{
nFPSThreshold1 = 30;
nFPSThreshold2 = 25;
}
if ( nFps >= nFPSThreshold1 )
{
ucColor[0] = 0;
ucColor[1] = 255;
}
else if ( nFps >= nFPSThreshold2 )
{
ucColor[1] = 255;
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Input :
//-----------------------------------------------------------------------------
void CFPSPanel::Paint()
{
int i = 0;
int x = 2;
if ( g_bDisplayParticlePerformance )
{
int nPerf = GetParticlePerformance();
if ( nPerf )
{
unsigned char ucColor[3]={ 0,255,0 };
g_pMatSystemSurface->DrawColoredText(
m_hFont, x, 42,
ucColor[0], ucColor[1], ucColor[2],
255, "Particle Performance Metric : %d", (nPerf+50)/100 );
}
}
float realFrameTime = gpGlobals->realtime - m_lastRealTime;
if ( cl_showfps.GetInt() && realFrameTime > 0.0 )
{
if ( m_lastRealTime != -1.0f )
{
i++;
int nFps = -1;
unsigned char ucColor[3];
if ( cl_showfps.GetInt() == 2 )
{
const float NewWeight = 0.1f;
float NewFrame = 1.0f / realFrameTime;
if ( m_AverageFPS < 0.0f )
{
m_AverageFPS = NewFrame;
m_high = (int)m_AverageFPS;
m_low = (int)m_AverageFPS;
}
else
{
m_AverageFPS *= ( 1.0f - NewWeight ) ;
m_AverageFPS += ( ( NewFrame ) * NewWeight );
}
int NewFrameInt = (int)NewFrame;
if( NewFrameInt < m_low ) m_low = NewFrameInt;
if( NewFrameInt > m_high ) m_high = NewFrameInt;
nFps = static_cast<int>( m_AverageFPS );
float frameMS = realFrameTime * 1000.0f;
GetFPSColor( nFps, ucColor );
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2, ucColor[0], ucColor[1], ucColor[2], 255, "%3i fps (%3i, %3i) %.1f ms on %s", nFps, m_low, m_high, frameMS, engine->GetLevelName() );
}
else
{
m_AverageFPS = -1;
nFps = static_cast<int>( 1.0f / realFrameTime );
GetFPSColor( nFps, ucColor );
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2, ucColor[0], ucColor[1], ucColor[2], 255, "%3i fps on %s", nFps, engine->GetLevelName() );
}
}
}
m_lastRealTime = gpGlobals->realtime;
int nShowPosMode = cl_showpos.GetInt();
if ( nShowPosMode > 0 )
{
Vector vecOrigin = MainViewOrigin();
QAngle angles = MainViewAngles();
if ( nShowPosMode == 2 )
{
C_BasePlayer *pPlayer = C_BasePlayer::GetLocalPlayer();
if ( pPlayer )
{
vecOrigin = pPlayer->GetAbsOrigin();
angles = pPlayer->GetAbsAngles();
}
}
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2+ i * ( vgui::surface()->GetFontTall( m_hFont ) + 2 ),
255, 255, 255, 255,
"pos: %.02f %.02f %.02f",
vecOrigin.x, vecOrigin.y, vecOrigin.z );
i++;
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2 + i * ( vgui::surface()->GetFontTall( m_hFont ) + 2 ),
255, 255, 255, 255,
"ang: %.02f %.02f %.02f",
angles.x, angles.y, angles.z );
i++;
Vector vel( 0, 0, 0 );
C_BasePlayer *player = C_BasePlayer::GetLocalPlayer();
if ( player )
{
vel = player->GetLocalVelocity();
}
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2 + i * ( vgui::surface()->GetFontTall( m_hFont ) + 2 ),
255, 255, 255, 255,
"vel: %.2f",
vel.Length() );
}
if ( cl_showbattery.GetInt() > 0 )
{
if ( steamapicontext && steamapicontext->SteamUtils() &&
( m_lastBatteryPercent == -1.0f || (gpGlobals->realtime - m_lastBatteryPercent) > 10.0f ) )
{
m_BatteryPercent = steamapicontext->SteamUtils()->GetCurrentBatteryPower();
m_lastBatteryPercent = gpGlobals->realtime;
}
if ( m_BatteryPercent > 0 )
{
if ( m_BatteryPercent == 255 )
{
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2+ i * ( vgui::surface()->GetFontTall( m_hFont ) + 2 ),
255, 255, 255, 255, "battery: On AC" );
}
else
{
g_pMatSystemSurface->DrawColoredText( m_hFont, x, 2+ i * ( vgui::surface()->GetFontTall( m_hFont ) + 2 ),
255, 255, 255, 255, "battery: %d%%",m_BatteryPercent );
}
}
}
}
class CFPS : public IFPSPanel
{
private:
CFPSPanel *fpsPanel;
public:
CFPS( void )
{
fpsPanel = NULL;
}
void Create( vgui::VPANEL parent )
{
fpsPanel = new CFPSPanel( parent );
}
void Destroy( void )
{
if ( fpsPanel )
{
fpsPanel->SetParent( (vgui::Panel *)NULL );
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delete fpsPanel;
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fpsPanel = NULL;
}
}
};
static CFPS g_FPSPanel;
IFPSPanel *fps = ( IFPSPanel * )&g_FPSPanel;
#if defined( TRACK_BLOCKING_IO ) && !defined( _RETAIL )
static ConVar cl_blocking_threshold( "cl_blocking_threshold", "0.000", 0, "If file ops take more than this amount of time, add to 'spewblocking' history list" );
void ShowBlockingChanged( ConVar *var, char const *pOldString )
{
filesystem->EnableBlockingFileAccessTracking( var->GetBool() );
}
static ConVar cl_showblocking( "cl_showblocking", "0", 0, "Show blocking i/o on top of fps panel", ShowBlockingChanged );
static ConVar cl_blocking_recentsize( "cl_blocking_recentsize", "40", 0, "Number of items to store in recent spew history." );
//-----------------------------------------------------------------------------
// Purpose: blocking i/o indicator
//-----------------------------------------------------------------------------
class CBlockingFileIOPanel : public vgui::Panel
{
typedef vgui::Panel BaseClass;
public:
CBlockingFileIOPanel( vgui::VPANEL parent );
virtual ~CBlockingFileIOPanel( void );
virtual void ApplySchemeSettings(vgui::IScheme *pScheme);
virtual void Paint();
virtual void OnTick( void );
virtual bool ShouldDraw( void );
void SpewRecent();
private:
void DrawIOTime( int x, int y, int w, int h, int slot, char const *label, const Color& clr );
vgui::HFont m_hFont;
struct Graph_t
{
float m_flCurrent;
float m_flHistory;
float m_flHistorySpike;
float m_flLatchTime;
CUtlSymbol m_LastFile;
};
Graph_t m_History[ FILESYSTEM_BLOCKING_NUMBINS ];
struct RecentPeaks_t
{
float time;
CUtlSymbol fileName;
float elapsed;
byte reason;
byte ioType;
};
CUtlLinkedList< RecentPeaks_t, unsigned short > m_Recent;
void SpewItem( const RecentPeaks_t& item );
};
#define IO_PANEL_WIDTH 400
#define IO_DECAY_FRAC 0.95f
//-----------------------------------------------------------------------------
// Purpose:
// Input : *parent -
//-----------------------------------------------------------------------------
CBlockingFileIOPanel::CBlockingFileIOPanel( vgui::VPANEL parent ) : BaseClass( NULL, "CBlockingFileIOPanel" )
{
SetParent( parent );
int wide, tall;
vgui::ipanel()->GetSize( parent, wide, tall );
int x = 2;
int y = 100;
if ( IsX360() )
{
x += XBOX_MAXBORDERSAFE * wide;
y += XBOX_MAXBORDERSAFE * tall;
}
SetPos( x, y );
SetSize( IO_PANEL_WIDTH, 140 );
SetVisible( false );
SetCursor( null );
SetFgColor( Color( 0, 0, 0, 255 ) );
SetPaintBackgroundEnabled( false );
m_hFont = 0;
vgui::ivgui()->AddTickSignal( GetVPanel(), 250 );
SetZPos( 1000 );
Q_memset( m_History, 0, sizeof( m_History ) );
SetPaintBackgroundEnabled( false );
SetPaintBorderEnabled( false );
MakePopup();
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
CBlockingFileIOPanel::~CBlockingFileIOPanel( void )
{
}
void CBlockingFileIOPanel::ApplySchemeSettings(vgui::IScheme *pScheme)
{
BaseClass::ApplySchemeSettings(pScheme);
m_hFont = pScheme->GetFont( "Default" );
Assert( m_hFont );
SetKeyBoardInputEnabled( false );
SetMouseInputEnabled( false );
}
//-----------------------------------------------------------------------------
// Purpose:
//-----------------------------------------------------------------------------
void CBlockingFileIOPanel::OnTick( void )
{
bool bVisible = ShouldDraw();
if ( IsVisible() != bVisible )
{
SetVisible( bVisible );
}
}
//-----------------------------------------------------------------------------
// Purpose:
// Output : Returns true on success, false on failure.
//-----------------------------------------------------------------------------
bool CBlockingFileIOPanel::ShouldDraw( void )
{
if ( !cl_showblocking.GetInt() )
{
return false;
}
return true;
}
//-----------------------------------------------------------------------------
// Purpose:
// Input :
//-----------------------------------------------------------------------------
void CBlockingFileIOPanel::Paint()
{
int x = 2;
int maxRecent = clamp( 0, cl_blocking_recentsize.GetInt(), 1000 );
int bval = cl_showblocking.GetInt();
if ( bval > 0 )
{
IBlockingFileItemList *list = filesystem->RetrieveBlockingFileAccessInfo();
if ( list )
{
int i;
int c = ARRAYSIZE( m_History );
for ( i = 0; i < c; ++i )
{
m_History[ i ].m_flCurrent = 0.0f;
}
// Grab mutex (prevents async thread from filling in even more data...)
list->LockMutex();
{
for ( int j = list->First() ; j != list->InvalidIndex(); j = list->Next( j ) )
{
const FileBlockingItem& item = list->Get( j );
m_History[ item.m_ItemType ].m_flCurrent += item.m_flElapsed;
RecentPeaks_t recent;
recent.time = gpGlobals->realtime;
recent.elapsed = item.m_flElapsed;
recent.fileName = item.GetFileName();
recent.reason = item.m_ItemType;
recent.ioType = item.m_nAccessType;
while ( m_Recent.Count() > maxRecent )
{
m_Recent.Remove( m_Recent.Head() );
}
m_Recent.AddToTail( recent );
m_History[ item.m_ItemType ].m_LastFile = item.GetFileName();
// Only care about time consuming synch or async blocking calls
if ( item.m_ItemType == FILESYSTEM_BLOCKING_SYNCHRONOUS ||
item.m_ItemType == FILESYSTEM_BLOCKING_ASYNCHRONOUS_BLOCK )
{
if ( item.m_flElapsed > cl_blocking_threshold.GetFloat() )
{
SpewItem( recent );
}
}
}
list->Reset();
}
// Finished
list->UnlockMutex();
// Now draw some bars...
int itemHeight = ( vgui::surface()->GetFontTall( m_hFont ) + 2 );
int y = 2;
int w = GetWide();
DrawIOTime( x, y, w, itemHeight, FILESYSTEM_BLOCKING_SYNCHRONOUS, "Synchronous", Color( 255, 0, 0, 255 ) );
y += 2*( itemHeight + 2 );
DrawIOTime( x, y, w, itemHeight, FILESYSTEM_BLOCKING_ASYNCHRONOUS_BLOCK, "Async Block", Color( 255, 100, 0, 255 ) );
y += 2*( itemHeight + 2 );
DrawIOTime( x, y, w, itemHeight, FILESYSTEM_BLOCKING_CALLBACKTIMING, "Callback", Color( 255, 255, 0, 255 ) );
y += 2*( itemHeight + 2 );
DrawIOTime( x, y, w, itemHeight, FILESYSTEM_BLOCKING_ASYNCHRONOUS, "Asynchronous", Color( 0, 255, 0, 255 ) );
for ( i = 0; i < c; ++i )
{
if ( m_History[ i ].m_flCurrent > m_History[ i ].m_flHistory )
{
m_History[ i ].m_flHistory = m_History[ i ].m_flCurrent;
m_History[ i ].m_flHistorySpike = m_History[ i ].m_flCurrent;
m_History[ i ].m_flLatchTime = gpGlobals->realtime;
}
else
{
// After this long, start to decay the previous history value
if ( gpGlobals->realtime > m_History[ i ].m_flLatchTime + 1.0f )
{
m_History[ i ].m_flHistory = m_History[ i ].m_flHistory * IO_DECAY_FRAC + ( 1.0f - IO_DECAY_FRAC ) * m_History[ i ].m_flCurrent;
}
}
}
}
}
}
static ConVar cl_blocking_msec( "cl_blocking_msec", "100", 0, "Vertical scale of blocking graph in milliseconds" );
static const char *GetBlockReason( int reason )
{
switch ( reason )
{
case FILESYSTEM_BLOCKING_SYNCHRONOUS:
return "Synchronous";
case FILESYSTEM_BLOCKING_ASYNCHRONOUS:
return "Asynchronous";
case FILESYSTEM_BLOCKING_CALLBACKTIMING:
return "Async Callback";
case FILESYSTEM_BLOCKING_ASYNCHRONOUS_BLOCK:
return "Async Blocked";
}
return "???";
}
static const char *GetIOType( int iotype )
{
if ( FileBlockingItem::FB_ACCESS_APPEND == iotype )
{
return "Append";
}
else if ( FileBlockingItem::FB_ACCESS_CLOSE == iotype )
{
return "Close";
}
else if ( FileBlockingItem::FB_ACCESS_OPEN == iotype)
{
return "Open";
}
else if ( FileBlockingItem::FB_ACCESS_READ == iotype)
{
return "Read";
}
else if ( FileBlockingItem::FB_ACCESS_SIZE == iotype)
{
return "Size";
}
else if ( FileBlockingItem::FB_ACCESS_WRITE == iotype)
{
return "Write";
}
return "???";
}
void CBlockingFileIOPanel::SpewItem( const RecentPeaks_t& item )
{
switch ( item.reason )
{
default:
Assert( 0 );
// break; -- intentionally fall through
case FILESYSTEM_BLOCKING_ASYNCHRONOUS:
case FILESYSTEM_BLOCKING_CALLBACKTIMING:
Msg( "%8.3f %16.16s i/o [%6.6s] took %8.3f msec: %33.33s\n",
item.time,
GetBlockReason( item.reason ),
GetIOType( item.ioType ),
item.elapsed * 1000.0f,
item.fileName.String()
);
break;
case FILESYSTEM_BLOCKING_SYNCHRONOUS:
case FILESYSTEM_BLOCKING_ASYNCHRONOUS_BLOCK:
Warning( "%8.3f %16.16s i/o [%6.6s] took %8.3f msec: %33.33s\n",
item.time,
GetBlockReason( item.reason ),
GetIOType( item.ioType ),
item.elapsed * 1000.0f,
item.fileName.String()
);
break;
}
}
void CBlockingFileIOPanel::SpewRecent()
{
FOR_EACH_LL( m_Recent, i )
{
const RecentPeaks_t& item = m_Recent[ i ];
SpewItem( item );
}
}
void CBlockingFileIOPanel::DrawIOTime( int x, int y, int w, int h, int slot, char const *label, const Color& clr )
{
float t = m_History[ slot ].m_flCurrent;
float history = m_History[ slot ].m_flHistory;
float latchedtime = m_History[ slot ].m_flLatchTime;
float historyspike = m_History[ slot ].m_flHistorySpike;
// 250 msec is considered a huge spike
float maxTime = cl_blocking_msec.GetFloat() * 0.001f;
if ( maxTime < 0.000001f )
return;
float frac = clamp( t / maxTime, 0.0f, 1.0f );
float hfrac = clamp( history / maxTime, 0.0f, 1.0f );
float spikefrac = clamp( historyspike / maxTime, 0.0f, 1.0f );
g_pMatSystemSurface->DrawColoredText( m_hFont, x + 2, y + 1,
clr[0], clr[1], clr[2], clr[3],
"%s",
label );
int textWidth = 95;
x += textWidth;
w -= ( textWidth + 5 );
int prevFileWidth = 140;
w -= prevFileWidth;
bool bDrawHistorySpike = false;
if ( m_History[ slot ].m_LastFile.IsValid() &&
( gpGlobals->realtime < latchedtime + 10.0f ) )
{
bDrawHistorySpike = true;
g_pMatSystemSurface->DrawColoredText( m_hFont, x + w + 5, y + 1,
255, 255, 255, 200, "[%8.3f ms]", m_History[ slot ].m_flHistorySpike * 1000.0f );
g_pMatSystemSurface->DrawColoredText( m_hFont, x, y + h + 1,
255, 255, 255, 200, "%s", m_History[ slot ].m_LastFile.String() );
}
y += 2;
h -= 4;
int barWide = ( int )( w * frac + 0.5f );
int historyWide = ( int ) ( w * hfrac + 0.5f );
int spikeWide = ( int ) ( w * spikefrac + 0.5f );
int useWide = MAX( barWide, historyWide );
vgui::surface()->DrawSetColor( Color( 0, 0, 0, 31 ) );
vgui::surface()->DrawFilledRect( x, y, x + w, y + h );
vgui::surface()->DrawSetColor( Color( 255, 255, 255, 128 ) );
vgui::surface()->DrawOutlinedRect( x, y, x + w, y + h );
vgui::surface()->DrawSetColor( clr );
vgui::surface()->DrawFilledRect( x+1, y+1, x + useWide, y + h -1 );
if ( bDrawHistorySpike )
{
vgui::surface()->DrawSetColor( Color( 255, 255, 255, 192 ) );
vgui::surface()->DrawFilledRect( x + spikeWide, y + 1, x + spikeWide + 1, y + h - 1 );
}
}
class CBlockingFileIO : public IShowBlockingPanel
{
private:
CBlockingFileIOPanel *ioPanel;
public:
CBlockingFileIO( void )
{
ioPanel = NULL;
}
void Create( vgui::VPANEL parent )
{
ioPanel = new CBlockingFileIOPanel( parent );
}
void Destroy( void )
{
if ( ioPanel )
{
ioPanel->SetParent( (vgui::Panel *)NULL );
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delete ioPanel;
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ioPanel = NULL;
}
}
void Spew()
{
if ( ioPanel )
{
ioPanel->SpewRecent();
}
}
};
static CBlockingFileIO g_IOPanel;
IShowBlockingPanel *iopanel = ( IShowBlockingPanel * )&g_IOPanel;
CON_COMMAND( spewblocking, "Spew current blocking file list." )
{
g_IOPanel.Spew();
}
#endif // TRACK_BLOCKING_IO
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