CigiViewDefV2.cpp

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#define _EXPORT_CCL_

#include "CigiViewDefV2.h"
#include "CigiSwapping.h"
#include "CigiExceptions.h"

#include <memory.h>

#ifdef CIGI_LITTLE_ENDIAN
   #define CIGI_SCOPY2 CigiSwap2
   #define CIGI_SCOPY4 CigiSwap4
   #define CIGI_SCOPY8 CigiSwap8
#else
   #define CIGI_SCOPY2 CigiCopy2
   #define CIGI_SCOPY4 CigiCopy4
   #define CIGI_SCOPY8 CigiCopy8
#endif



// ====================================================================
// Construction/Destruction
// ====================================================================


// ================================================
// CigiViewDefV2
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
CigiViewDefV2::CigiViewDefV2()
{

   PacketID = CIGI_VIEW_DEF_PACKET_ID_V2;
   PacketSize = CIGI_VIEW_DEF_PACKET_SIZE_V2;
   Version = 2;
   MinorVersion = 0;

   ViewID = 0;
   GroupID = 0;
   FOVNearEn = false;
   FOVFarEn = false;
   FOVLeftEn = false;
   FOVRightEn = false;
   FOVTopEn = false;
   FOVBottomEn = false;
   MirrorMode = MirrorNone;
   PixelReplicateMode = ReplicateNone;
   ProjectionType = Perspective;
   Reorder = false;
   ViewType = 0;
   TrackerAssigned = false;
   FOVNear = 0.0;
   FOVFar = 0.0;
   FOVLeft = 0.0;
   FOVRight = 0.0;
   FOVTop = 0.0;
   FOVBottom = 0.0;

}

// ================================================
// ~CigiViewDefV2
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
CigiViewDefV2::~CigiViewDefV2()
{

}

// ====================================================================
// Pack and Unpack
// ====================================================================

// ================================================
// Pack
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
int CigiViewDefV2::Pack(CigiBasePacket * Base, Cigi_uint8 * Buff, void *Spec) const
{
   double DBuf[6];

   Cigi_uint8 *tBuf = (Cigi_uint8 *)DBuf;

   PackPointer CDta;

   CigiBaseViewDef * Data = ( CigiBaseViewDef *)Base;

   CDta.d = DBuf;

   *CDta.c++ = PacketID;
   *CDta.c++ = PacketSize;

   Cigi_uint8 HDta = 0;
   if(Data->ViewID < 32)
      HDta = (Cigi_uint8)(Data->ViewID << 3);
   else
      HDta = (Cigi_uint8)0xf8;

   if(Data->GroupID < 8)
      HDta |= (Cigi_uint8)Data->GroupID;
   else
      HDta |= 7;

   *CDta.c++ = HDta;

   HDta = (Data->ViewType << 5) & 0xe0;
   HDta |= (Cigi_uint8)((Data->PixelReplicateMode << 2) & 0x1c);
   HDta |= (Cigi_uint8)(Data->MirrorMode & 0x03);

   *CDta.c++ = HDta;

   HDta = (Data->TrackerAssigned) ? 0x80 : 0;

   if(Data->FOVNearEn)
      HDta |= 0x40;

   if(Data->FOVFarEn)
      HDta |= 0x20;

   if(Data->FOVLeftEn)
      HDta |= 0x10;

   if(Data->FOVRightEn)
      HDta |= 0x08;

   if(Data->FOVTopEn)
      HDta |= 0x04;

   if(Data->FOVBottomEn)
      HDta |= 0x02;

   *CDta.c++ = HDta;
   *CDta.c++ = 0;
   *CDta.c++ = 0;
   *CDta.c++ = 0;

   CIGI_SCOPY4(CDta.f++, &Data->FOVNear);
   CIGI_SCOPY4(CDta.f++, &Data->FOVFar);
   CIGI_SCOPY4(CDta.f++, &Data->FOVLeft);
   CIGI_SCOPY4(CDta.f++, &Data->FOVRight);
   CIGI_SCOPY4(CDta.f++, &Data->FOVTop);
   CIGI_SCOPY4(CDta.f++, &Data->FOVBottom);

   memcpy(Buff,tBuf,CIGI_VIEW_DEF_PACKET_SIZE_V2);

   return(PacketSize);

}

// ================================================
// Unpack
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
int CigiViewDefV2::Unpack(Cigi_uint8 * Buff, bool Swap, void *Spec)
{
   double DBuf[6];

   Cigi_uint8 *tBuf = (Cigi_uint8 *)DBuf;

   PackPointer CDta;

   memcpy(tBuf,Buff,CIGI_VIEW_DEF_PACKET_SIZE_V2);

   CDta.d = DBuf;

   CDta.c += 2;  // Step over packet id and size

   Cigi_uint8 HDta = *CDta.c++;

   ViewID = (Cigi_uint8)((HDta >> 3) & 0x1f);
   GroupID = (Cigi_uint8)(HDta & 0x07);

   HDta = *CDta.c++;

   ViewType = (Cigi_uint8)((HDta >> 5) & 0x07);
   PixelReplicateMode = (PixelReplicateModeGrp)((HDta >> 2) & 0x07);
   MirrorMode = (MirrorModeGrp)(HDta & 0x03);

   HDta = *CDta.c++;
   
   TrackerAssigned = ((HDta & 0x80) != 0);
   FOVNearEn = ((HDta & 0x40) != 0);
   FOVFarEn = ((HDta & 0x20) != 0);
   FOVLeftEn = ((HDta & 0x10) != 0);
   FOVRightEn = ((HDta & 0x08) != 0);
   FOVTopEn = ((HDta & 0x04) != 0);
   FOVBottomEn = ((HDta & 0x02) != 0);

   CDta.c += 3;

   CIGI_SCOPY4(&FOVNear, CDta.f++);
   CIGI_SCOPY4(&FOVFar, CDta.f++);
   CIGI_SCOPY4(&FOVLeft, CDta.f++);
   CIGI_SCOPY4(&FOVRight, CDta.f++);
   CIGI_SCOPY4(&FOVTop, CDta.f++);
   CIGI_SCOPY4(&FOVBottom, CDta.f++);

   return(PacketSize);


}



// ====================================================================
// Accessors
// ====================================================================


// ================================================
// View ID
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
int CigiViewDefV2::SetViewID(const Cigi_uint8 ViewIDIn, bool bndchk)
{

#ifndef CIGI_NO_BND_CHK
   if(bndchk && ((ViewIDIn < 0)||(ViewIDIn > 31)))
   {
#ifndef CIGI_NO_EXCEPT
      throw CigiValueOutOfRangeException("ViewID",(Cigi_uint16)ViewIDIn,0,31);
#endif
      return(CIGI_ERROR_VALUE_OUT_OF_RANGE);
   }
#endif

   ViewID = (Cigi_uint16)ViewIDIn;
   return(CIGI_SUCCESS);

}


// ================================================
// Group ID
// vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
int CigiViewDefV2::SetGroupID(const Cigi_uint8 GroupIDIn, bool bndchk)
{

#ifndef CIGI_NO_BND_CHK
   if(bndchk && ((GroupIDIn < 0)||(GroupIDIn > 7)))
   {
#ifndef CIGI_NO_EXCEPT
      throw CigiValueOutOfRangeException("GroupID",(Cigi_uint16)GroupIDIn,0,7);
#endif
      return(CIGI_ERROR_VALUE_OUT_OF_RANGE);
   }
#endif

   GroupID = GroupIDIn;
   return(CIGI_SUCCESS);

}

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