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kicad/3d-viewer/3d_cache/sg/sg_index.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>
*
* 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 <fstream>
#include <iostream>
#include <sstream>
#include <wx/log.h>
#include "3d_cache/sg/sg_index.h"
SGINDEX::SGINDEX( SGNODE* aParent ) : SGNODE( aParent )
{
if( NULL != aParent && S3D::SGTYPE_FACESET != aParent->GetNodeType() )
{
m_Parent = NULL;
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] inappropriate parent to SGINDEX (type ";
ostr << aParent->GetNodeType() << ")";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
}
return;
}
SGINDEX::~SGINDEX()
{
index.clear();
return;
}
bool SGINDEX::SetParent( SGNODE* aParent, bool notify )
{
if( NULL != m_Parent )
{
if( aParent == m_Parent )
return true;
// handle the change in parents
if( notify )
m_Parent->unlinkChildNode( this );
m_Parent = NULL;
if( NULL == aParent )
return true;
}
// only a SGFACESET may be parent to a SGINDEX and derived types
if( NULL != aParent && S3D::SGTYPE_FACESET != aParent->GetNodeType() )
return false;
m_Parent = aParent;
if( m_Parent )
m_Parent->AddChildNode( this );
return true;
}
SGNODE* SGINDEX::FindNode(const char *aNodeName, const SGNODE *aCaller)
{
if( NULL == aNodeName || 0 == aNodeName[0] )
return NULL;
if( !m_Name.compare( aNodeName ) )
return this;
return NULL;
}
void SGINDEX::unlinkChildNode( const SGNODE* aCaller )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] unexpected code branch; node should have no children or refs";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return;
}
void SGINDEX::unlinkRefNode( const SGNODE* aCaller )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] unexpected code branch; node should have no children or refs";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return;
}
bool SGINDEX::AddRefNode( SGNODE* aNode )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] this node does not accept children or refs";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
bool SGINDEX::AddChildNode( SGNODE* aNode )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] this node does not accept children or refs";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
bool SGINDEX::GetIndices( size_t& nIndices, int*& aIndexList )
{
if( index.empty() )
{
nIndices = 0;
aIndexList = NULL;
return false;
}
nIndices = index.size();
aIndexList = & index[0];
return true;
}
void SGINDEX::SetIndices( size_t nIndices, int* aIndexList )
{
index.clear();
if( 0 == nIndices || NULL == aIndexList )
return;
for( size_t i = 0; i < nIndices; ++i )
index.push_back( aIndexList[i] );
return;
}
void SGINDEX::AddIndex( int aIndex )
{
index.push_back( aIndex );
return;
}
void SGINDEX::ReNameNodes( void )
{
m_written = false;
// rename this node
m_Name.clear();
GetName();
}
bool SGINDEX::WriteVRML( std::ofstream& aFile, bool aReuseFlag )
{
if( index.empty() )
return false;
if( S3D::SGTYPE_COORDINDEX == m_SGtype )
return writeCoordIndex( aFile );
return writeColorIndex( aFile );
}
bool SGINDEX::writeCoordIndex( std::ofstream& aFile )
{
size_t n = index.size();
if( n % 3 )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] coord index is not divisible by three (violates triangle constraint)";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
aFile << " coordIndex [\n ";
// indices to control formatting
int nv0 = 0;
int nv1 = 0;
for( size_t i = 0; i < n; )
{
aFile << index[i];
++i;
if( ++nv0 == 3 )
{
aFile << ",-1";
++nv1;
nv0 = 0;
}
if( i < n )
{
aFile << ",";
if( nv1 == 8 )
{
nv1 = 0;
aFile << "\n ";
}
}
}
aFile << "]\n";
return true;
}
bool SGINDEX::writeColorIndex( std::ofstream& aFile )
{
aFile << " colorIndex [\n ";
return writeIndexList( aFile );
}
bool SGINDEX::writeIndexList( std::ofstream& aFile )
{
// index to control formatting
int nv = 0;
size_t n = index.size();
for( size_t i = 0; i < n; )
{
aFile << index[i];
++i;
if( i < n )
{
aFile << ",";
if( ++nv == 20 )
{
aFile << "\n ";
nv = 0;
}
}
}
aFile << "]\n";
return true;
}
bool SGINDEX::WriteCache( std::ofstream& aFile, SGNODE* parentNode )
{
if( NULL == parentNode )
{
if( NULL == m_Parent )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] corrupt data; m_aParent is NULL";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
SGNODE* np = m_Parent;
while( NULL != np->GetParent() )
np = np->GetParent();
if( np->WriteCache( aFile, NULL ) )
{
m_written = true;
return true;
}
return false;
}
if( parentNode != m_Parent )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] corrupt data; parentNode != m_aParent";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
if( !aFile.good() )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [INFO] bad stream";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
aFile << "[" << GetName() << "]";
size_t npts = index.size();
aFile.write( (char*)&npts, sizeof(size_t) );
for( size_t i = 0; i < npts; ++i )
aFile.write( (char*)&index[i], sizeof(int) );
if( aFile.fail() )
return false;
m_written = true;
return true;
}
bool SGINDEX::ReadCache( std::ifstream& aFile, SGNODE* parentNode )
{
if( !index.empty() )
{
#ifdef DEBUG
std::ostringstream ostr;
ostr << __FILE__ << ": " << __FUNCTION__ << ": " << __LINE__ << "\n";
ostr << " * [BUG] non-empty node";
wxLogTrace( MASK_3D_SG, "%s\n", ostr.str().c_str() );
#endif
return false;
}
size_t npts;
aFile.read( (char*)&npts, sizeof(size_t) );
int tmp;
if( aFile.fail() )
return false;
for( size_t i = 0; i < npts; ++i )
{
aFile.read( (char*)&tmp, sizeof(int) );
if( aFile.fail() )
return false;
index.push_back( tmp );
}
return true;
}
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