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engine: net_encode: use NaN detection in delta write field code

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This commit is contained in:
Alibek Omarov 2022-09-19 06:27:18 +03:00
parent 889be15e41
commit 94fb01d114
1 changed files with 12 additions and 1 deletions
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13
engine/common/net_encode.c
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@ -1168,6 +1168,8 @@ qboolean Delta_WriteField( sizebuf_t *msg, delta_t *pField, void *from, void *to
else if( pField->flags & DT_FLOAT )
{
flValue = *(float *)((byte *)to + pField->offset );
TNAN_S( flValue );
iValue = (int)((double)flValue * pField->multiplier);
iValue = Delta_ClampIntegerField( pField, iValue, bSigned, pField->bits );
MSG_WriteBitLong( msg, iValue, pField->bits, bSigned );
@ -1175,6 +1177,7 @@ qboolean Delta_WriteField( sizebuf_t *msg, delta_t *pField, void *from, void *to
else if( pField->flags & DT_ANGLE )
{
flAngle = *(float *)((byte *)to + pField->offset );
TNAN_S( flAngle );
// NOTE: never applies multipliers to angle because
// result may be wrong on client-side
@ -1184,6 +1187,8 @@ qboolean Delta_WriteField( sizebuf_t *msg, delta_t *pField, void *from, void *to
{
bSigned = true; // timewindow is always signed
flValue = *(float *)((byte *)to + pField->offset );
TNAN_S( flValue );
iValue = (int)Q_rint( timebase * 100.0 ) - (int)Q_rint( flValue * 100.0 );
iValue = Delta_ClampIntegerField( pField, iValue, bSigned, pField->bits );
MSG_WriteBitLong( msg, iValue, pField->bits, bSigned );
@ -1192,6 +1197,8 @@ qboolean Delta_WriteField( sizebuf_t *msg, delta_t *pField, void *from, void *to
{
bSigned = true; // timewindow is always signed
flValue = *(float *)((byte *)to + pField->offset );
TNAN_S( flValue );
iValue = (int)Q_rint( timebase * pField->multiplier ) - (int)Q_rint( flValue * pField->multiplier );
iValue = Delta_ClampIntegerField( pField, iValue, bSigned, pField->bits );
MSG_WriteBitLong( msg, iValue, pField->bits, bSigned );
@ -1316,6 +1323,8 @@ qboolean Delta_ReadField( sizebuf_t *msg, delta_t *pField, void *from, void *to,
else
flValue = iValue;
TNAN_S( flValue );
if( !Q_equal( pField->multiplier, 1.0 ) )
flValue = flValue / pField->multiplier;
@ -1327,6 +1336,7 @@ qboolean Delta_ReadField( sizebuf_t *msg, delta_t *pField, void *from, void *to,
else if( pField->flags & DT_ANGLE )
{
flAngle = MSG_ReadBitAngle( msg, pField->bits );
TNAN_S( flValue );
*(float *)((byte *)to + pField->offset ) = flAngle;
}
else if( pField->flags & DT_TIMEWINDOW_8 )
@ -1334,7 +1344,7 @@ qboolean Delta_ReadField( sizebuf_t *msg, delta_t *pField, void *from, void *to,
bSigned = true; // timewindow is always signed
iValue = MSG_ReadBitLong( msg, pField->bits, bSigned );
flTime = (timebase * 100.0 - (int)iValue) / 100.0;
TNAN_S( flTime );
*(float *)((byte *)to + pField->offset ) = flTime;
}
else if( pField->flags & DT_TIMEWINDOW_BIG )
@ -1346,6 +1356,7 @@ qboolean Delta_ReadField( sizebuf_t *msg, delta_t *pField, void *from, void *to,
flTime = ( timebase * pField->multiplier - (int)iValue ) / pField->multiplier;
else
flTime = timebase - (int)iValue;
TNAN_S( flTime );
*(float *)((byte *)to + pField->offset ) = flTime;
}