vrml.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2015-2016 Cirilo Bernardo <[email protected]>
 * Copyright (C) 2020-2021 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
 */
 
/*
 * Description:
 * This plugin implements the legacy KiCad VRML1/VRML2 and X3D parsers
 * The plugin will invoke a VRML1 or VRML2 parser depending on the
 * identifying information in the file header:
 *
 * #VRML V1.0 ASCII
 * #VRML V2.0 utf8
 */
 
#include "plugins/3d/3d_plugin.h"
#include "plugins/3dapi/ifsg_all.h"
#include "richio.h"
#include "vrml1_base.h"
#include "vrml2_base.h"
#include "wrlproc.h"
#include "x3d.h"
#include <clocale>
#include <wx/filename.h>
#include <wx/stdpaths.h>
#include <wx/string.h>
#include <wx/wfstream.h>
#include <wx/log.h>
 
#include <decompress.hpp>
 
 
#define PLUGIN_VRML_MAJOR 1
#define PLUGIN_VRML_MINOR 3
#define PLUGIN_VRML_PATCH 2
#define PLUGIN_VRML_REVNO 2
 
 
const wxChar* const traceVrmlPlugin = wxT( "KICAD_VRML_PLUGIN" );
 
 
const char* GetKicadPluginName( void )
{
 return "PLUGIN_3D_VRML";
}
 
 
void GetPluginVersion( unsigned char* Major, unsigned char* Minor, unsigned char* Patch,
 unsigned char* Revision )
{
 if( Major )
 *Major = PLUGIN_VRML_MAJOR;
 
 if( Minor )
 *Minor = PLUGIN_VRML_MINOR;
 
 if( Patch )
 *Patch = PLUGIN_VRML_PATCH;
 
 if( Revision )
 *Revision = PLUGIN_VRML_REVNO;
 
 return;
}
 
 
static struct FILE_DATA
{
 std::vector<std::string> extensions;
 std::vector<std::string> filters;
 
 FILE_DATA()
 {
 
#ifdef _WIN32
 extensions = { "wrl", "wrz", "x3d" };
 filters = { "VRML 1.0/2.0 (*.wrl;*.wrz)|*.wrl;*.wrz",
 "X3D (*.x3d)|*.x3d" };
#else
 extensions = { "wrl", "WRL", "wrz", "WRZ", "x3d", "X3D" };
 filters = { "VRML 1.0/2.0 (*.wrl;*.WRL;*.wrz;*.WRZ)|*.wrl;*.WRL;*.wrz;*.WRZ",
 "X3D (*.x3d;*.X3D)|*.x3d;*.X3D" };
#endif
 }
 
} file_data;
 
 
int GetNExtensions( void )
{
 return file_data.extensions.size();
}
 
 
char const* GetModelExtension( int aIndex )
{
 if( aIndex < 0 || aIndex >= int( file_data.extensions.size() ) )
 return nullptr;
 
 return file_data.extensions[aIndex].c_str();
}
 
 
int GetNFilters( void )
{
 return file_data.filters.size();
}
 
 
char const* GetFileFilter( int aIndex )
{
 if( aIndex < 0 || aIndex >= int( file_data.filters.size() ) )
 return nullptr;
 
 return file_data.filters[aIndex].c_str();
}
 
 
bool CanRender( void )
{
 // this plugin supports rendering of IDF component outlines
 return true;
}
 
 
class LOCALESWITCH
{
public:
 LOCALESWITCH()
 {
 m_locale = setlocale( LC_NUMERIC, nullptr );
 setlocale( LC_NUMERIC, "C" );
 }
 
 ~LOCALESWITCH()
 {
 setlocale( LC_NUMERIC, m_locale.c_str() );
 }
 
private:
 // Store the user locale name, to restore this locale later, in dtor
 std::string m_locale;
};
 
 
SCENEGRAPH* LoadVRML( const wxString& aFileName, bool useInline )
{
 FILE_LINE_READER* modelFile = nullptr;
 SCENEGRAPH* scene = nullptr;
 wxString filename = aFileName;
 wxFileName tmpfilename;
 
 if( aFileName.Upper().EndsWith( wxT( "WRZ" ) ) )
 {
 wxFFileInputStream ifile( aFileName );
 tmpfilename = wxFileName( aFileName );
 
 tmpfilename.SetPath( wxStandardPaths::Get().GetTempDir() );
 tmpfilename.SetExt( wxT( "WRL" ) );
 
 wxFileOffset size = ifile.GetLength();
 
 if( size == wxInvalidOffset )
 return nullptr;
 
 {
 wxFFileOutputStream ofile( tmpfilename.GetFullPath() );
 
 if( !ofile.IsOk() )
 return nullptr;
 
 char *buffer = new char[size];
 
 ifile.Read( buffer, size);
 std::string expanded;
 
 try
 {
 expanded = gzip::decompress( buffer, size );
 }
 catch( std::runtime_error& e )
 {
 wxLogDebug( wxT( " * [INFO] wrz load failed: %s" ), wxString::FromUTF8Unchecked( e.what() ) );
 
 delete[] buffer;
 return nullptr;
 }
 catch( ... )
 {
 wxLogDebug( wxT( " * [INFO] wrz load failed: unknown error" ) );
 
 delete[] buffer;
 return nullptr;
 }
 
 delete[] buffer;
 
 ofile.Write( expanded.data(), expanded.size() );
 ofile.Close();
 }
 
 filename = tmpfilename.GetFullPath();
 }
 
 try
 {
 // set the max char limit to 8MB; if a VRML file contains
 // longer lines then perhaps it shouldn't be used
 modelFile = new FILE_LINE_READER( filename, 0, 8388608 );
 }
 catch( IO_ERROR& e )
 {
 wxLogError( wxString( wxS( " * " ) )
 << wxString::Format( _( "[INFO] load failed: %s" ), e.What() ) );
 
 return nullptr;
 }
 
 
 // VRML file processor
 WRLPROC proc( modelFile );
 
 // Cleanup our temporary file
 if( tmpfilename.IsOk() )
 wxRemoveFile( tmpfilename.GetFullPath() );
 
 if( proc.GetVRMLType() == WRLVERSION::VRML_V1 )
 {
 wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] Processing VRML 1.0 file" ) );
 
 WRL1BASE* bp = new WRL1BASE;
 
 if( !bp->Read( proc ) )
 {
 wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] load failed" ) );
 }
 else
 {
 wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] load completed" ) );
 
 scene = (SCENEGRAPH*)bp->TranslateToSG( nullptr, nullptr );
 }
 
 delete bp;
 }
 else
 {
 wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] Processing VRML 2.0 file" ) );
 
 WRL2BASE* bp = new WRL2BASE;
 
 // allow Inline{} files to be included
 bp->SetEnableInline( true );
 
 if( !bp->Read( proc ) )
 {
 wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] load failed" ) );
 }
 else
 {
 wxLogTrace( traceVrmlPlugin, wxT( " * [INFO] load completed" ) );
 
 // for now we recalculate all normals per-vertex per-face
 scene = (SCENEGRAPH*)bp->TranslateToSG( nullptr );
 }
 
 delete bp;
 }
 
 if( nullptr != modelFile )
 delete modelFile;
 
 // DEBUG: WRITE OUT VRML2 FILE TO CONFIRM STRUCTURE
#if ( defined( DEBUG_VRML1 ) && DEBUG_VRML1 > 3 ) \
 || ( defined( DEBUG_VRML2 ) && DEBUG_VRML2 > 3 )
 if( scene )
 {
 wxFileName fn( wxString::FromUTF8Unchecked( aFileName ) );
 wxString output;
 
 if( proc.GetVRMLType() == VRML_V1 )
 output = wxT( "_vrml1-" );
 else
 output = wxT( "_vrml2-" );
 
 output.append( fn.GetName() );
 output.append( wxT(".wrl") );
 S3D::WriteVRML( output.ToUTF8(), true, (SGNODE*)(scene), true, true );
 }
#endif
 
 return scene;
}
 
 
SCENEGRAPH* LoadX3D( const wxString& aFileName )
{
 SCENEGRAPH* scene = nullptr;
 X3DPARSER model;
 scene = model.Load( aFileName );
 
 return scene;
}
 
 
SCENEGRAPH* Load( char const* aFileName )
{
 if( nullptr == aFileName )
 return nullptr;
 
 wxString fname = wxString::FromUTF8Unchecked( aFileName );
 
 if( !wxFileName::FileExists( fname ) )
 return nullptr;
 
 LOCALESWITCH switcher;
 
 SCENEGRAPH* scene = nullptr;
 wxString ext = wxFileName( fname ).GetExt();
 
 if( ext == wxT( "x3d" ) || ext == wxT( "X3D" ) )
 scene = LoadX3D( fname );
 else
 scene = LoadVRML( fname, true );
 
 return scene;
}