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hl2sdk/public/dt_send.cpp

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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose:
//
// $NoKeywords: $
//
//=============================================================================//
#include "dt_send.h"
#include "mathlib/mathlib.h"
#include "mathlib/vector.h"
#include "tier0/dbg.h"
#include "dt_utlvector_common.h"
// memdbgon must be the last include file in a .cpp file!!!
#include "tier0/memdbgon.h"
#if !defined(_STATIC_LINKED) || defined(GAME_DLL)
static CNonModifiedPointerProxy *s_pNonModifiedPointerProxyHead = NULL;
void SendProxy_UInt8ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID);
void SendProxy_UInt16ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID);
void SendProxy_UInt32ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID);
#ifdef SUPPORTS_INT64
void SendProxy_UInt64ToInt64( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID);
#endif
CNonModifiedPointerProxy::CNonModifiedPointerProxy( SendTableProxyFn fn )
{
m_pNext = s_pNonModifiedPointerProxyHead;
s_pNonModifiedPointerProxyHead = this;
m_Fn = fn;
}
CStandardSendProxiesV1::CStandardSendProxiesV1()
{
m_Int8ToInt32 = SendProxy_Int8ToInt32;
m_Int16ToInt32 = SendProxy_Int16ToInt32;
m_Int32ToInt32 = SendProxy_Int32ToInt32;
#ifdef SUPPORTS_INT64
m_Int64ToInt64 = SendProxy_Int64ToInt64;
#endif
m_UInt8ToInt32 = SendProxy_UInt8ToInt32;
m_UInt16ToInt32 = SendProxy_UInt16ToInt32;
m_UInt32ToInt32 = SendProxy_UInt32ToInt32;
#ifdef SUPPORTS_INT64
m_UInt64ToInt64 = SendProxy_UInt64ToInt64;
#endif
m_FloatToFloat = SendProxy_FloatToFloat;
m_VectorToVector = SendProxy_VectorToVector;
}
CStandardSendProxies::CStandardSendProxies()
{
m_DataTableToDataTable = SendProxy_DataTableToDataTable;
m_SendLocalDataTable = SendProxy_SendLocalDataTable;
m_ppNonModifiedPointerProxies = &s_pNonModifiedPointerProxyHead;
}
CStandardSendProxies g_StandardSendProxies;
// ---------------------------------------------------------------------- //
// Proxies.
// ---------------------------------------------------------------------- //
void SendProxy_AngleToFloat( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
float angle;
angle = *((float*)pData);
pOut->m_Float = anglemod( angle );
Assert( IsFinite( pOut->m_Float ) );
}
void SendProxy_FloatToFloat( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Float = *((float*)pData);
Assert( IsFinite( pOut->m_Float ) );
}
void SendProxy_QAngles( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID )
{
QAngle *v = (QAngle*)pData;
pOut->m_Vector[0] = anglemod( v->x );
pOut->m_Vector[1] = anglemod( v->y );
pOut->m_Vector[2] = anglemod( v->z );
}
void SendProxy_VectorToVector( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
Vector& v = *(Vector*)pData;
Assert( v.IsValid() );
pOut->m_Vector[0] = v[0];
pOut->m_Vector[1] = v[1];
pOut->m_Vector[2] = v[2];
}
void SendProxy_VectorXYToVectorXY( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
Vector& v = *(Vector*)pData;
Assert( v.IsValid() );
pOut->m_Vector[0] = v[0];
pOut->m_Vector[1] = v[1];
}
#if 0 // We can't ship this since it changes the size of DTVariant to be 20 bytes instead of 16 and that breaks MODs!!!
void SendProxy_QuaternionToQuaternion( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
Quaternion& q = *(Quaternion*)pData;
Assert( q.IsValid() );
pOut->m_Vector[0] = q[0];
pOut->m_Vector[1] = q[1];
pOut->m_Vector[2] = q[2];
pOut->m_Vector[3] = q[3];
}
#endif
void SendProxy_Int8ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Int = *((const char*)pData);
}
void SendProxy_Int16ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Int = *((short*)pData);
}
void SendProxy_Int32ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Int = *((int*)pData);
}
#ifdef SUPPORTS_INT64
void SendProxy_Int64ToInt64( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Int64 = *((int64*)pData);
}
#endif
void SendProxy_UInt8ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Int = *((const unsigned char*)pData);
}
void SendProxy_UInt16ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_Int = *((unsigned short*)pData);
}
void SendProxy_UInt32ToInt32( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
*((unsigned long*)&pOut->m_Int) = *((unsigned long*)pData);
}
#ifdef SUPPORTS_INT64
void SendProxy_UInt64ToInt64( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
*((int64*)&pOut->m_Int64) = *((uint64*)pData);
}
#endif
void SendProxy_StringToString( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
pOut->m_pString = (const char*)pData;
}
void* SendProxy_DataTableToDataTable( const SendProp *pProp, const void *pStructBase, const void *pData, CSendProxyRecipients *pRecipients, int objectID )
{
return (void*)pData;
}
void* SendProxy_DataTablePtrToDataTable( const SendProp *pProp, const void *pStructBase, const void *pData, CSendProxyRecipients *pRecipients, int objectID )
{
return *((void**)pData);
}
static void SendProxy_Empty( const SendProp *pProp, const void *pStruct, const void *pData, DVariant *pOut, int iElement, int objectID)
{
}
//-----------------------------------------------------------------------------
// Purpose: If the recipient is the same as objectID, go ahead and iterate down
// the m_Local stuff, otherwise, act like it wasn't there at all.
// This way, only the local player receives information about him/herself.
// Input : *pVarData -
// *pOut -
// objectID -
//-----------------------------------------------------------------------------
void* SendProxy_SendLocalDataTable( const SendProp *pProp, const void *pStruct, const void *pVarData, CSendProxyRecipients *pRecipients, int objectID )
{
pRecipients->SetOnly( objectID - 1 );
return ( void * )pVarData;
}
// ---------------------------------------------------------------------- //
// Prop setup functions (for building tables).
// ---------------------------------------------------------------------- //
float AssignRangeMultiplier( int nBits, double range )
{
unsigned long iHighValue;
if ( nBits == 32 )
iHighValue = 0xFFFFFFFE;
else
iHighValue = ((1 << (unsigned long)nBits) - 1);
float fHighLowMul = iHighValue / range;
if ( CloseEnough( range, 0 ) )
fHighLowMul = iHighValue;
// If the precision is messing us up, then adjust it so it won't.
if ( (unsigned long)(fHighLowMul * range) > iHighValue ||
(fHighLowMul * range) > (double)iHighValue )
{
// Squeeze it down smaller and smaller until it's going to produce an integer
// in the valid range when given the highest value.
float multipliers[] = { 0.9999, 0.99, 0.9, 0.8, 0.7 };
int i;
for ( i=0; i < ARRAYSIZE( multipliers ); i++ )
{
fHighLowMul = (float)( iHighValue / range ) * multipliers[i];
if ( (unsigned long)(fHighLowMul * range) > iHighValue ||
(fHighLowMul * range) > (double)iHighValue )
{
}
else
{
break;
}
}
if ( i == ARRAYSIZE( multipliers ) )
{
// Doh! We seem to be unable to represent this range.
Assert( false );
return 0;
}
}
return fHighLowMul;
}
SendProp SendPropFloat(
const char *pVarName,
// Variable name.
int offset, // Offset into container structure.
int sizeofVar,
int nBits, // Number of bits to use when encoding.
int flags,
float fLowValue, // For floating point, low and high values.
float fHighValue, // High value. If HIGH_DEFAULT, it's (1<<nBits).
SendVarProxyFn varProxy
)
{
SendProp ret;
if ( varProxy == SendProxy_FloatToFloat )
{
Assert( sizeofVar == 0 || sizeofVar == 4 );
}
if ( nBits <= 0 || nBits == 32 )
{
flags |= SPROP_NOSCALE;
fLowValue = 0.f;
fHighValue = 0.f;
}
else
{
if(fHighValue == HIGH_DEFAULT)
fHighValue = (1 << nBits);
if (flags & SPROP_ROUNDDOWN)
fHighValue = fHighValue - ((fHighValue - fLowValue) / (1 << nBits));
else if (flags & SPROP_ROUNDUP)
fLowValue = fLowValue + ((fHighValue - fLowValue) / (1 << nBits));
}
ret.m_Type = DPT_Float;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
ret.m_fLowValue = fLowValue;
ret.m_fHighValue = fHighValue;
ret.m_fHighLowMul = AssignRangeMultiplier( ret.m_nBits, ret.m_fHighValue - ret.m_fLowValue );
ret.SetProxyFn( varProxy );
if( ret.GetFlags() & (SPROP_COORD | SPROP_NOSCALE | SPROP_NORMAL | SPROP_COORD_MP | SPROP_COORD_MP_LOWPRECISION | SPROP_COORD_MP_INTEGRAL ) )
ret.m_nBits = 0;
return ret;
}
SendProp SendPropVector(
const char *pVarName,
int offset,
int sizeofVar,
int nBits, // Number of bits to use when encoding.
int flags,
float fLowValue, // For floating point, low and high values.
float fHighValue, // High value. If HIGH_DEFAULT, it's (1<<nBits).
SendVarProxyFn varProxy
)
{
SendProp ret;
if(varProxy == SendProxy_VectorToVector)
{
Assert(sizeofVar == sizeof(Vector));
}
if ( nBits == 32 )
flags |= SPROP_NOSCALE;
ret.m_Type = DPT_Vector;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
ret.m_fLowValue = fLowValue;
ret.m_fHighValue = fHighValue;
ret.m_fHighLowMul = AssignRangeMultiplier( ret.m_nBits, ret.m_fHighValue - ret.m_fLowValue );
ret.SetProxyFn( varProxy );
if( ret.GetFlags() & (SPROP_COORD | SPROP_NOSCALE | SPROP_NORMAL | SPROP_COORD_MP | SPROP_COORD_MP_LOWPRECISION | SPROP_COORD_MP_INTEGRAL) )
ret.m_nBits = 0;
return ret;
}
SendProp SendPropVectorXY(
const char *pVarName,
int offset,
int sizeofVar,
int nBits, // Number of bits to use when encoding.
int flags,
float fLowValue, // For floating point, low and high values.
float fHighValue, // High value. If HIGH_DEFAULT, it's (1<<nBits).
SendVarProxyFn varProxy
)
{
SendProp ret;
if(varProxy == SendProxy_VectorXYToVectorXY)
{
Assert(sizeofVar == sizeof(Vector));
}
if ( nBits == 32 )
flags |= SPROP_NOSCALE;
ret.m_Type = DPT_VectorXY;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
ret.m_fLowValue = fLowValue;
ret.m_fHighValue = fHighValue;
ret.m_fHighLowMul = AssignRangeMultiplier( ret.m_nBits, ret.m_fHighValue - ret.m_fLowValue );
ret.SetProxyFn( varProxy );
if( ret.GetFlags() & (SPROP_COORD | SPROP_NOSCALE | SPROP_NORMAL | SPROP_COORD_MP | SPROP_COORD_MP_LOWPRECISION | SPROP_COORD_MP_INTEGRAL) )
ret.m_nBits = 0;
return ret;
}
#if 0 // We can't ship this since it changes the size of DTVariant to be 20 bytes instead of 16 and that breaks MODs!!!
SendProp SendPropQuaternion(
const char *pVarName,
int offset,
int sizeofVar,
int nBits, // Number of bits to use when encoding.
int flags,
float fLowValue, // For floating point, low and high values.
float fHighValue, // High value. If HIGH_DEFAULT, it's (1<<nBits).
SendVarProxyFn varProxy
)
{
SendProp ret;
if(varProxy == SendProxy_QuaternionToQuaternion)
{
Assert(sizeofVar == sizeof(Quaternion));
}
if ( nBits == 32 )
flags |= SPROP_NOSCALE;
ret.m_Type = DPT_Quaternion;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
ret.m_fLowValue = fLowValue;
ret.m_fHighValue = fHighValue;
ret.m_fHighLowMul = AssignRangeMultiplier( ret.m_nBits, ret.m_fHighValue - ret.m_fLowValue );
ret.SetProxyFn( varProxy );
if( ret.GetFlags() & (SPROP_COORD | SPROP_NOSCALE | SPROP_NORMAL | SPROP_COORD_MP | SPROP_COORD_MP_LOWPRECISION | SPROP_COORD_MP_INTEGRAL) )
ret.m_nBits = 0;
return ret;
}
#endif
SendProp SendPropAngle(
const char *pVarName,
int offset,
int sizeofVar,
int nBits,
int flags,
SendVarProxyFn varProxy
)
{
SendProp ret;
if(varProxy == SendProxy_AngleToFloat)
{
Assert(sizeofVar == 4);
}
if ( nBits == 32 )
flags |= SPROP_NOSCALE;
ret.m_Type = DPT_Float;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
ret.m_fLowValue = 0.0f;
ret.m_fHighValue = 360.0f;
ret.m_fHighLowMul = AssignRangeMultiplier( ret.m_nBits, ret.m_fHighValue - ret.m_fLowValue );
ret.SetProxyFn( varProxy );
return ret;
}
SendProp SendPropQAngles(
const char *pVarName,
int offset,
int sizeofVar,
int nBits,
int flags,
SendVarProxyFn varProxy
)
{
SendProp ret;
if(varProxy == SendProxy_AngleToFloat)
{
Assert(sizeofVar == 4);
}
if ( nBits == 32 )
flags |= SPROP_NOSCALE;
ret.m_Type = DPT_Vector;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
ret.m_fLowValue = 0.0f;
ret.m_fHighValue = 360.0f;
ret.m_fHighLowMul = AssignRangeMultiplier( ret.m_nBits, ret.m_fHighValue - ret.m_fLowValue );
ret.SetProxyFn( varProxy );
return ret;
}
SendProp SendPropInt(
const char *pVarName,
int offset,
int sizeofVar,
int nBits,
int flags,
SendVarProxyFn varProxy
)
{
SendProp ret;
if ( !varProxy )
{
if ( sizeofVar == 1 )
{
varProxy = SendProxy_Int8ToInt32;
}
else if ( sizeofVar == 2 )
{
varProxy = SendProxy_Int16ToInt32;
}
else if ( sizeofVar == 4 )
{
varProxy = SendProxy_Int32ToInt32;
}
#ifdef SUPPORTS_INT64
else if ( sizeofVar == 8 )
{
varProxy = SendProxy_Int64ToInt64;
}
#endif
else
{
Assert(!"SendPropInt var has invalid size");
varProxy = SendProxy_Int8ToInt32; // safest one...
}
}
// Figure out # of bits if the want us to.
if ( nBits <= 0 )
{
Assert( sizeofVar == 1 || sizeofVar == 2 || sizeofVar == 4 );
nBits = sizeofVar * 8;
}
#ifdef SUPPORTS_INT64
ret.m_Type = (sizeofVar == 8) ? DPT_Int64 : DPT_Int;
#else
ret.m_Type = DPT_Int;
#endif
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.m_nBits = nBits;
ret.SetFlags( flags );
// Use UInt proxies if they want unsigned data. This isn't necessary to encode
// the values correctly, but it lets us check the ranges of the data to make sure
// they're valid.
ret.SetProxyFn( varProxy );
if( ret.GetFlags() & SPROP_UNSIGNED )
{
if( varProxy == SendProxy_Int8ToInt32 )
ret.SetProxyFn( SendProxy_UInt8ToInt32 );
else if( varProxy == SendProxy_Int16ToInt32 )
ret.SetProxyFn( SendProxy_UInt16ToInt32 );
else if( varProxy == SendProxy_Int32ToInt32 )
ret.SetProxyFn( SendProxy_UInt32ToInt32 );
#ifdef SUPPORTS_INT64
else if( varProxy == SendProxy_Int64ToInt64 )
ret.SetProxyFn( SendProxy_UInt64ToInt64 );
#endif
}
return ret;
}
SendProp SendPropString(
const char *pVarName,
int offset,
int bufferLen,
int flags,
SendVarProxyFn varProxy)
{
SendProp ret;
Assert( bufferLen <= DT_MAX_STRING_BUFFERSIZE ); // You can only have strings with 8-bits worth of length.
ret.m_Type = DPT_String;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.SetFlags( flags );
ret.SetProxyFn( varProxy );
return ret;
}
SendProp SendPropArray3(
const char *pVarName,
int offset,
int sizeofVar,
int elements,
SendProp pArrayProp,
SendTableProxyFn varProxy
)
{
SendProp ret;
Assert( elements <= MAX_ARRAY_ELEMENTS );
ret.m_Type = DPT_DataTable;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.SetDataTableProxyFn( varProxy );
SendProp *pArrayPropAllocated = new SendProp;
*pArrayPropAllocated = pArrayProp;
ret.SetArrayProp( pArrayPropAllocated );
// Handle special proxy types where they always let all clients get the results.
if ( varProxy == SendProxy_DataTableToDataTable || varProxy == SendProxy_DataTablePtrToDataTable )
{
ret.SetFlags( SPROP_PROXY_ALWAYS_YES );
}
SendProp *pProps = new SendProp[elements]; // TODO free that again
for ( int i = 0; i < elements; i++ )
{
pProps[i] = pArrayProp; // copy array element property setting
pProps[i].SetOffset( i*sizeofVar ); // adjust offset
pProps[i].m_pVarName = DT_ArrayElementNameForIdx(i); // give unique name
pProps[i].m_pParentArrayPropName = pVarName; // For debugging...
}
SendTable *pTable = new SendTable( pProps, elements, pVarName ); // TODO free that again
ret.SetDataTable( pTable );
return ret;
}
SendProp SendPropDataTable(
const char *pVarName,
int offset,
SendTable *pTable,
SendTableProxyFn varProxy
)
{
SendProp ret;
ret.m_Type = DPT_DataTable;
ret.m_pVarName = pVarName;
ret.SetOffset( offset );
ret.SetDataTable( pTable );
ret.SetDataTableProxyFn( varProxy );
// Handle special proxy types where they always let all clients get the results.
if ( varProxy == SendProxy_DataTableToDataTable || varProxy == SendProxy_DataTablePtrToDataTable )
{
ret.SetFlags( SPROP_PROXY_ALWAYS_YES );
}
if ( varProxy == SendProxy_DataTableToDataTable && offset == 0 )
{
ret.SetFlags( SPROP_COLLAPSIBLE );
}
return ret;
}
SendProp InternalSendPropArray(
const int elementCount,
const int elementStride,
const char *pName,
ArrayLengthSendProxyFn arrayLengthFn
)
{
SendProp ret;
ret.m_Type = DPT_Array;
ret.m_nElements = elementCount;
ret.m_ElementStride = elementStride;
ret.m_pVarName = pName;
ret.SetProxyFn( SendProxy_Empty );
ret.m_pArrayProp = NULL; // This gets set in SendTable_InitTable. It always points at the property that precedes
// this one in the datatable's list.
ret.SetArrayLengthProxy( arrayLengthFn );
return ret;
}
SendProp SendPropExclude(
const char *pDataTableName, // Data table name (given to BEGIN_SEND_TABLE and BEGIN_RECV_TABLE).
const char *pPropName // Name of the property to exclude.
)
{
SendProp ret;
ret.SetFlags( SPROP_EXCLUDE );
ret.m_pExcludeDTName = pDataTableName;
ret.m_pVarName = pPropName;
return ret;
}
// ---------------------------------------------------------------------- //
// SendProp
// ---------------------------------------------------------------------- //
SendProp::SendProp()
{
m_pVarName = NULL;
m_Offset = 0;
m_pDataTable = NULL;
m_ProxyFn = NULL;
m_pExcludeDTName = NULL;
m_pParentArrayPropName = NULL;
m_Type = DPT_Int;
m_Flags = 0;
m_nBits = 0;
m_fLowValue = 0.0f;
m_fHighValue = 0.0f;
m_pArrayProp = 0;
m_ArrayLengthProxy = 0;
m_nElements = 1;
m_ElementStride = -1;
}
SendProp::~SendProp()
{
}
int SendProp::GetNumArrayLengthBits() const
{
Assert( GetType() == DPT_Array );
#if _X360
int elemCount = GetNumElements();
if ( !elemCount )
return 1;
return (32 - _CountLeadingZeros(GetNumElements()));
#else
return Q_log2( GetNumElements() ) + 1;
#endif
}
// ---------------------------------------------------------------------- //
// SendTable
// ---------------------------------------------------------------------- //
SendTable::SendTable()
{
Construct( NULL, 0, NULL );
}
SendTable::SendTable(SendProp *pProps, int nProps, const char *pNetTableName)
{
Construct( pProps, nProps, pNetTableName );
}
SendTable::~SendTable()
{
// Assert( !m_pPrecalc );
}
void SendTable::Construct( SendProp *pProps, int nProps, const char *pNetTableName )
{
m_pProps = pProps;
m_nProps = nProps;
m_pNetTableName = pNetTableName;
m_pPrecalc = 0;
m_bInitialized = false;
m_bHasBeenWritten = false;
m_bHasPropsEncodedAgainstCurrentTickCount = false;
}
#endif