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engine: common: net_encode: rewrite Delta_CompareField to be more efficient

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This commit is contained in:
Alibek Omarov 2023-06-27 17:39:25 +03:00
parent aee5e46516
commit 82addf11bb
1 changed files with 28 additions and 116 deletions
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144
engine/common/net_encode.c
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@ -941,129 +941,41 @@ assume from and to is valid
*/ */
static qboolean Delta_CompareField( delta_t *pField, void *from, void *to, double timebase ) static qboolean Delta_CompareField( delta_t *pField, void *from, void *to, double timebase )
{ {
qboolean bSigned = ( pField->flags & DT_SIGNED ) ? true : false; uint8_t *from_field = (uint8_t *)from + pField->offset;
float val_a, val_b; uint8_t *to_field = (uint8_t *)to + pField->offset;
int fromF, toF; uint field_type = pField->flags & ~DT_SIGNED;
int fromF;
Assert( pField != NULL ); int toF;
Assert( from != NULL );
Assert( to != NULL );
if( pField->bInactive ) if( pField->bInactive )
return true; return true;
fromF = toF = 0; switch( field_type )
if( pField->flags & DT_BYTE )
{ {
if( pField->flags & DT_SIGNED ) case DT_BYTE:
{ return *to_field == *from_field;
fromF = *(int8_t *)((int8_t *)from + pField->offset ); case DT_SHORT:
toF = *(int8_t *)((int8_t *)to + pField->offset ); return *(uint16_t *)to_field == *(uint16_t *)from_field;
} case DT_INTEGER:
else case DT_ANGLE:
{ case DT_FLOAT:
fromF = *(uint8_t *)((int8_t *)from + pField->offset ); return *(uint32_t *)to_field == *(uint32_t *)from_field;
toF = *(uint8_t *)((int8_t *)to + pField->offset ); case DT_TIMEWINDOW_8:
fromF = (int)((*(float *)from_field) * 100.0f );
toF = (int)((*(float *)to_field) * 100.0f );
return toF == fromF;
case DT_TIMEWINDOW_BIG:
fromF = (int)((*(float *)from_field) * pField->multiplier );
toF = (int)((*(float *)to_field) * pField->multiplier );
return toF == fromF;
case DT_STRING:
return Q_strcmp( to_field, from_field ) == 0;
default:
break;
} }
fromF = Delta_ClampIntegerField( pField, fromF, bSigned, pField->bits ); Con_Reportf( S_ERROR "bad field %s type: %d\n", pField->name, pField->flags );
toF = Delta_ClampIntegerField( pField, toF, bSigned, pField->bits ); return false;
if( !Q_equal(pField->multiplier, 1.0) )
fromF *= pField->multiplier;
if( !Q_equal( pField->multiplier, 1.0 ) )
toF *= pField->multiplier;
}
else if( pField->flags & DT_SHORT )
{
if( pField->flags & DT_SIGNED )
{
fromF = *(int16_t *)((int8_t *)from + pField->offset );
toF = *(int16_t *)((int8_t *)to + pField->offset );
}
else
{
fromF = *(uint16_t *)((int8_t *)from + pField->offset );
toF = *(uint16_t *)((int8_t *)to + pField->offset );
}
fromF = Delta_ClampIntegerField( pField, fromF, bSigned, pField->bits );
toF = Delta_ClampIntegerField( pField, toF, bSigned, pField->bits );
if( !Q_equal( pField->multiplier, 1.0 ) )
fromF *= pField->multiplier;
if( !Q_equal( pField->multiplier, 1.0 ) )
toF *= pField->multiplier;
}
else if( pField->flags & DT_INTEGER )
{
if( pField->flags & DT_SIGNED )
{
fromF = *(int32_t *)((int8_t *)from + pField->offset );
toF = *(int32_t *)((int8_t *)to + pField->offset );
}
else
{
fromF = *(uint32_t *)((int8_t *)from + pField->offset );
toF = *(uint32_t *)((int8_t *)to + pField->offset );
}
fromF = Delta_ClampIntegerField( pField, fromF, bSigned, pField->bits );
toF = Delta_ClampIntegerField( pField, toF, bSigned, pField->bits );
if( !Q_equal( pField->multiplier, 1.0 ) )
fromF *= pField->multiplier;
if( !Q_equal( pField->multiplier, 1.0 ) )
toF *= pField->multiplier;
}
else if( pField->flags & ( DT_ANGLE|DT_FLOAT ))
{
// don't convert floats to integers
fromF = *((int *)((byte *)from + pField->offset ));
toF = *((int *)((byte *)to + pField->offset ));
}
else if( pField->flags & DT_TIMEWINDOW_8 )
{
val_a = Q_rint((*(float *)((byte *)from + pField->offset )) * 100.0 );
val_b = Q_rint((*(float *)((byte *)to + pField->offset )) * 100.0 );
val_a -= Q_rint(timebase * 100.0);
val_b -= Q_rint(timebase * 100.0);
fromF = FloatAsInt( val_a );
toF = FloatAsInt( val_b );
}
else if( pField->flags & DT_TIMEWINDOW_BIG )
{
val_a = (*(float *)((byte *)from + pField->offset ));
val_b = (*(float *)((byte *)to + pField->offset ));
if( !Q_equal( pField->multiplier, 1.0 ) )
{
val_a *= pField->multiplier;
val_b *= pField->multiplier;
val_a = (timebase * pField->multiplier) - val_a;
val_b = (timebase * pField->multiplier) - val_b;
}
else
{
val_a = timebase - val_a;
val_b = timebase - val_b;
}
fromF = FloatAsInt( val_a );
toF = FloatAsInt( val_b );
}
else if( pField->flags & DT_STRING )
{
// compare strings
char *s1 = (char *)((byte *)from + pField->offset );
char *s2 = (char *)((byte *)to + pField->offset );
// 0 is equal, otherwise not equal
toF = Q_strcmp( s1, s2 );
}
return ( fromF == toF ) ? true : false;
} }
/* /*