kicad/3d-viewer/3d_cache/sg/sg_node.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 Cirilo Bernardo <cirilo.bernardo@gmail.com>
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* Copyright (C) 2020 KiCad Developers, see AUTHORS.txt for contributors.
*
* 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 2
* 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, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <algorithm>
#include <cmath>
#include <cstring>
#include <iostream>
#include <sstream>
#include <wx/log.h>
#include "3d_cache/sg/sg_node.h"
#include "plugins/3dapi/c3dmodel.h"
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static const std::string node_names[S3D::SGTYPE_END + 1] = {
"TXFM",
"APP",
"COL",
"COLIDX",
"FACE",
"COORD",
"COORDIDX",
"NORM",
"SHAPE",
"INVALID"
};
static unsigned int node_counts[S3D::SGTYPE_END] = { 1, 1, 1, 1, 1, 1, 1, 1, 1 };
char const* S3D::GetNodeTypeName( S3D::SGTYPES aType ) noexcept
{
return node_names[aType].c_str();
}
static void getNodeName( S3D::SGTYPES nodeType, std::string& aName )
{
if( nodeType < 0 || nodeType >= S3D::SGTYPE_END )
{
aName = node_names[S3D::SGTYPE_END];
return;
}
unsigned int seqNum = node_counts[nodeType];
++node_counts[nodeType];
std::ostringstream ostr;
ostr << node_names[nodeType] << "_" << seqNum;
aName = ostr.str();
}
SGNODE::SGNODE( SGNODE* aParent )
{
m_Parent = aParent;
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m_Association = nullptr;
m_written = false;
m_SGtype = S3D::SGTYPE_END;
}
SGNODE::~SGNODE()
{
if( m_Parent )
m_Parent->unlinkChildNode( this );
if( m_Association )
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*m_Association = nullptr;
std::list< SGNODE* >::iterator sBP = m_BackPointers.begin();
std::list< SGNODE* >::iterator eBP = m_BackPointers.end();
while( sBP != eBP )
{
(*sBP)->unlinkRefNode( this );
++sBP;
}
}
S3D::SGTYPES SGNODE::GetNodeType( void ) const noexcept
{
return m_SGtype;
}
SGNODE* SGNODE::GetParent( void ) const noexcept
{
return m_Parent;
}
bool SGNODE::SwapParent( SGNODE* aNewParent )
{
if( aNewParent == m_Parent )
return true;
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if( nullptr == aNewParent )
return false;
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if( nullptr == m_Parent )
{
if( aNewParent->AddChildNode( this ) )
return true;
return false;
}
if( aNewParent->GetNodeType() != m_Parent->GetNodeType() )
return false;
SGNODE* oldParent = m_Parent;
m_Parent->unlinkChildNode( this );
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m_Parent = nullptr;
aNewParent->unlinkRefNode( this );
aNewParent->AddChildNode( this );
oldParent->AddRefNode( this );
return true;
}
const char* SGNODE::GetName( void )
{
if( m_Name.empty() )
getNodeName( m_SGtype, m_Name );
return m_Name.c_str();
}
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void SGNODE::SetName( const char* aName )
{
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if( nullptr == aName || 0 == aName[0] )
getNodeName( m_SGtype, m_Name );
else
m_Name = aName;
}
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const char* SGNODE::GetNodeTypeName( S3D::SGTYPES aNodeType ) const noexcept
{
return node_names[aNodeType].c_str();
}
void SGNODE::addNodeRef( SGNODE* aNode )
{
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if( nullptr == aNode )
return;
std::list< SGNODE* >::iterator np =
std::find( m_BackPointers.begin(), m_BackPointers.end(), aNode );
if( np != m_BackPointers.end() )
return;
m_BackPointers.push_back( aNode );
}
void SGNODE::delNodeRef( const SGNODE* aNode )
{
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if( nullptr == aNode )
return;
std::list< SGNODE* >::iterator np =
std::find( m_BackPointers.begin(), m_BackPointers.end(), aNode );
if( np != m_BackPointers.end() )
{
m_BackPointers.erase( np );
return;
}
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wxLogTrace( MASK_3D_SG, "%s:%s:%d * [BUG] delNodeRef() did not find its target, "
"this node type %d, referenced node type %d", __FILE__, __FUNCTION__, __LINE__,
m_SGtype, aNode->GetNodeType() );
}
void SGNODE::AssociateWrapper( SGNODE** aWrapperRef ) noexcept
{
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wxCHECK( aWrapperRef && *aWrapperRef == this, /* void */ );
// if there is an existing association then break it and emit a warning
// just in case the behavior is undesired
if( m_Association )
{
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*m_Association = nullptr;
wxLogTrace( MASK_3D_SG,
"%s:%s:%d * [WARNING] association being broken with previous wrapper",
__FILE__, __FUNCTION__, __LINE__ );
}
m_Association = aWrapperRef;
}
void SGNODE::DisassociateWrapper( SGNODE** aWrapperRef ) noexcept
{
if( !m_Association )
return;
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wxCHECK( aWrapperRef, /* void */ );
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wxCHECK( *aWrapperRef == *m_Association && aWrapperRef == m_Association, /* void */ );
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m_Association = nullptr;
}
void SGNODE::ResetNodeIndex( void ) noexcept
{
for( int i = 0; i < (int)S3D::SGTYPE_END; ++i )
node_counts[i] = 1;
}
bool S3D::GetMatIndex( MATLIST& aList, SGNODE* aNode, int& aIndex )
{
aIndex = 0;
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wxCHECK( aNode && S3D::SGTYPE_APPEARANCE == aNode->GetNodeType(), false );
SGAPPEARANCE* node = (SGAPPEARANCE*)aNode;
std::map< SGAPPEARANCE const*, int >::iterator it = aList.matmap.find( node );
if( it != aList.matmap.end() )
{
aIndex = it->second;
return true;
}
int idx = (int)aList.matorder.size();
aList.matorder.push_back( node );
aList.matmap.insert( std::pair< SGAPPEARANCE const*, int >( node, idx ) );
aIndex = idx;
return true;
}
void S3D::INIT_SMATERIAL( SMATERIAL& aMaterial )
{
aMaterial = {};
}
void S3D::INIT_SMESH( SMESH& aMesh ) noexcept
{
aMesh = {};
}
void S3D::INIT_S3DMODEL( S3DMODEL& aModel ) noexcept
{
aModel = {};
}
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void S3D::FREE_SMESH( SMESH& aMesh ) noexcept
{
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if( nullptr != aMesh.m_Positions )
{
delete [] aMesh.m_Positions;
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aMesh.m_Positions = nullptr;
}
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if( nullptr != aMesh.m_Normals )
{
delete [] aMesh.m_Normals;
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aMesh.m_Normals = nullptr;
}
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if( nullptr != aMesh.m_Texcoords )
{
delete [] aMesh.m_Texcoords;
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aMesh.m_Texcoords = nullptr;
}
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if( nullptr != aMesh.m_Color )
{
delete [] aMesh.m_Color;
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aMesh.m_Color = nullptr;
}
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if( nullptr != aMesh.m_FaceIdx )
{
delete [] aMesh.m_FaceIdx;
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aMesh.m_FaceIdx = nullptr;
}
aMesh.m_VertexSize = 0;
aMesh.m_FaceIdxSize = 0;
aMesh.m_MaterialIdx = 0;
}
void S3D::FREE_S3DMODEL( S3DMODEL& aModel )
{
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if( nullptr != aModel.m_Materials )
{
delete [] aModel.m_Materials;
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aModel.m_Materials = nullptr;
}
aModel.m_MaterialsSize = 0;
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if( nullptr != aModel.m_Meshes )
{
for( unsigned int i = 0; i < aModel.m_MeshesSize; ++i )
FREE_SMESH( aModel.m_Meshes[i] );
delete [] aModel.m_Meshes;
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aModel.m_Meshes = nullptr;
}
aModel.m_MeshesSize = 0;
}