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/*==LICENSE==*
CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011 Cyan Worlds, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
You can contact Cyan Worlds, Inc. by email legal@cyan.com
or by snail mail at:
Cyan Worlds, Inc.
14617 N Newport Hwy
Mead, WA 99021
*==LICENSE==*/
///////////////////////////////////////////////////////////////////////////////
// //
// plCubicEnvironmap Class Functions //
// Derived bitmap class representing a collection of mipmaps to be used for //
// cubic environment mapping. //
// Cyan, Inc. //
// //
//// Version History //////////////////////////////////////////////////////////
// //
// 6.7.2001 mcn - Created. //
// //
///////////////////////////////////////////////////////////////////////////////
#include "hsTypes.h"
#include "plCubicEnvironmap.h"
#include "plMipmap.h"
//// Constructor & Destructor /////////////////////////////////////////////////
plCubicEnvironmap::plCubicEnvironmap()
{
int i;
for( i = 0; i < 6; i++ )
fFaces[ i ] = TRACKED_NEW plMipmap;
fInitialized = false;
}
plCubicEnvironmap::~plCubicEnvironmap()
{
int i;
for( i = 0; i < 6; i++ )
delete fFaces[ i ];
}
//// GetTotalSize /////////////////////////////////////////////////////////////
// Get the total size in bytes
UInt32 plCubicEnvironmap::GetTotalSize( void ) const
{
UInt32 size, i;
for( size = 0, i = 0; i < 6; i++ )
{
hsAssert( fFaces[ i ] != nil, "Nil face in GetTotalSize()" );
size += fFaces[ i ]->GetTotalSize();
}
return size;
}
//// Read /////////////////////////////////////////////////////////////////////
UInt32 plCubicEnvironmap::Read( hsStream *s )
{
UInt32 i, tr = plBitmap::Read( s );
for( i = 0; i < 6; i++ )
tr += fFaces[ i ]->Read( s );
fInitialized = true;
return tr;
}
//// Write ////////////////////////////////////////////////////////////////////
UInt32 plCubicEnvironmap::Write( hsStream *s )
{
UInt32 i, tw = plBitmap::Write( s );
for( i = 0; i < 6; i++ )
tw += fFaces[ i ]->Write( s );
return tw;
}
//// CopyToFace ///////////////////////////////////////////////////////////////
// Export-only: Copy the mipmap given into a face
void plCubicEnvironmap::CopyToFace( plMipmap *mip, UInt8 face )
{
hsAssert( face < 6, "Invalid face index in CopyToFace()" );
hsAssert( fFaces[ face ] != nil, "nil face in CopyToFace()" );
hsAssert( mip != nil, "nil source in CopyToFace()" );
if( !fInitialized )
{
// Make sure our stuff matches
fCompressionType = mip->fCompressionType;
if( fCompressionType != kDirectXCompression )
fUncompressedInfo.fType = mip->fUncompressedInfo.fType;
else
{
fDirectXInfo.fBlockSize = mip->fDirectXInfo.fBlockSize;
fDirectXInfo.fCompressionType = mip->fDirectXInfo.fCompressionType;
}
fPixelSize = mip->GetPixelSize();
fSpace = kDirectSpace;
fFlags = mip->GetFlags();
fInitialized = true;
}
else
{
// Check to make sure their stuff matches
if( IsCompressed() != mip->IsCompressed() )
{
hsAssert( false, "Compression types do not match in CopyToFace()" );
return;
}
if( !IsCompressed() )
{
if( fUncompressedInfo.fType != mip->fUncompressedInfo.fType )
{
hsAssert( false, "Compression formats do not match in CopyToFace()" );
return;
}
}
else
{
if( fDirectXInfo.fBlockSize != mip->fDirectXInfo.fBlockSize ||
fDirectXInfo.fCompressionType != mip->fDirectXInfo.fCompressionType )
{
hsAssert( false, "Compression formats do not match in CopyToFace()" );
return;
}
}
if( fPixelSize != mip->GetPixelSize() )
{
hsAssert( false, "Bitdepths do not match in CopyToFace()" );
return;
}
if( fFlags != mip->GetFlags() )
{
hsAssert( false, "Flags do not match in CopyToFace()" );
}
}
// Copy the mipmap data
fFaces[ face ]->CopyFrom( mip );
}