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

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015-2017 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 <iostream>
#include <utility>
#include <sstream>
#include <wx/log.h>
#include "3d_cache/sg/sg_appearance.h"
#include "3d_cache/sg/sg_helpers.h"
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SGAPPEARANCE::SGAPPEARANCE( SGNODE* aParent ) : SGNODE( aParent )
{
m_SGtype = S3D::SGTYPE_APPEARANCE;
// defaults in accord with VRML2.0 spec
ambient.SetColor( 0.05317f, 0.17879f, 0.01804f );
shininess = 0.2f;
transparency = 0.0f;
diffuse.SetColor( 0.8f, 0.8f, 0.8f );
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if( nullptr != aParent && S3D::SGTYPE_SHAPE != aParent->GetNodeType() )
{
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m_Parent = nullptr;
wxLogTrace( MASK_3D_SG, "%s:%s:%d * [BUG] inappropriate parent to SGAPPEARANCE (type %s )",
__FILE__, __FUNCTION__, __LINE__, aParent->GetNodeType() );
}
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else if( nullptr != aParent && S3D::SGTYPE_SHAPE == aParent->GetNodeType() )
{
m_Parent->AddChildNode( this );
}
}
SGAPPEARANCE::~SGAPPEARANCE()
{
}
bool SGAPPEARANCE::SetParent( SGNODE* aParent, bool notify )
{
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if( nullptr != m_Parent )
{
if( aParent == m_Parent )
return true;
// handle the change in parents
if( notify )
m_Parent->unlinkChildNode( this );
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m_Parent = nullptr;
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if( nullptr == aParent )
return true;
}
// only a SGSHAPE may be parent to a SGAPPEARANCE
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if( nullptr != aParent && S3D::SGTYPE_SHAPE != aParent->GetNodeType() )
return false;
m_Parent = aParent;
if( m_Parent )
m_Parent->AddChildNode( this );
return true;
}
bool SGAPPEARANCE::SetEmissive( float aRVal, float aGVal, float aBVal )
{
return emissive.SetColor( aRVal, aGVal, aBVal );
}
bool SGAPPEARANCE::SetEmissive( const SGCOLOR* aRGBColor )
{
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wxCHECK_MSG( aRGBColor, false, "NULL pointer passed for aRGBColor" );
return emissive.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetEmissive( const SGCOLOR& aRGBColor )
{
return emissive.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetDiffuse( float aRVal, float aGVal, float aBVal )
{
return diffuse.SetColor( aRVal, aGVal, aBVal );
}
bool SGAPPEARANCE::SetDiffuse( const SGCOLOR* aRGBColor )
{
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wxCHECK_MSG( aRGBColor, false, "NULL pointer passed for aRGBColor" );
return diffuse.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetDiffuse( const SGCOLOR& aRGBColor )
{
return diffuse.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetSpecular( float aRVal, float aGVal, float aBVal )
{
return specular.SetColor( aRVal, aGVal, aBVal );
}
bool SGAPPEARANCE::SetSpecular( const SGCOLOR* aRGBColor )
{
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wxCHECK_MSG( aRGBColor, false, "NULL pointer passed for aRGBColor" );
return specular.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetSpecular( const SGCOLOR& aRGBColor )
{
return specular.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetAmbient( float aRVal, float aGVal, float aBVal )
{
return ambient.SetColor( aRVal, aGVal, aBVal );
}
bool SGAPPEARANCE::SetAmbient( const SGCOLOR* aRGBColor )
{
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wxCHECK_MSG( aRGBColor, false, "NULL pointer passed for aRGBColor" );
return ambient.SetColor( aRGBColor );
}
bool SGAPPEARANCE::SetAmbient( const SGCOLOR& aRGBColor )
{
return ambient.SetColor( aRGBColor );
}
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SGNODE* SGAPPEARANCE::FindNode( const char* aNodeName, const SGNODE* aCaller) noexcept
{
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if( nullptr == aNodeName || 0 == aNodeName[0] )
return nullptr;
if( !m_Name.compare( aNodeName ) )
return this;
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return nullptr;
}
void SGAPPEARANCE::unlinkChildNode( const SGNODE* aCaller ) noexcept
{
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wxCHECK_MSG( aCaller, /* void */,
"unexpected code branch; node should have no children or refs" );
}
void SGAPPEARANCE::unlinkRefNode( const SGNODE* aCaller ) noexcept
{
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wxCHECK_MSG( aCaller, /* void */,
"unexpected code branch; node should have no children or refs" );
}
bool SGAPPEARANCE::AddRefNode( SGNODE* aNode ) noexcept
{
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wxCHECK_MSG( aNode, false, "this node does not accept children or refs" );
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// This is redundant but it keeps gcc from generating a warning on debug builds.
return false;
}
bool SGAPPEARANCE::AddChildNode( SGNODE* aNode ) noexcept
{
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wxCHECK_MSG( aNode, false, "this node does not accept children or refs" );
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// This is redundant but it keeps gcc from generating a warning on debug builds.
return false;
}
void SGAPPEARANCE::ReNameNodes( void )
{
m_written = false;
// rename this node
m_Name.clear();
GetName();
}
bool SGAPPEARANCE::WriteVRML( std::ostream& aFile, bool aReuseFlag )
{
if( aReuseFlag )
{
if( !m_written )
{
aFile << " appearance DEF " << GetName() << " Appearance {\n";
m_written = true;
}
else
{
aFile << " appearance USE " << GetName() << "\n";
return true;
}
}
else
{
aFile << " appearance Appearance {\n";
}
aFile << " material Material {\n";
std::string tmp;
float ambr, ambg, ambb;
ambient.GetColor( ambr, ambg, ambb );
float amb = ( 0.212671 * ambr + 0.71516 * ambg + 0.072169 * ambb );
diffuse.GetColor( ambr, ambg, ambb );
float den = ( 0.212671 * ambr + 0.71516 * ambg + 0.072169 * ambb );
if( den < 0.004f )
den = 0.004f;
amb /= den;
if( amb > 1.0f )
amb = 1.0f;
S3D::FormatFloat( tmp, amb );
aFile << " ambientIntensity " << tmp << "\n";
float red, green, blue;
diffuse.GetColor( red, green, blue );
S3D::FormatFloat( tmp, red );
aFile << " diffuseColor " << tmp << " ";
S3D::FormatFloat( tmp, green );
aFile << tmp << " ";
S3D::FormatFloat( tmp, blue);
aFile << tmp << "\n";
emissive.GetColor( red, green, blue );
S3D::FormatFloat( tmp, red );
aFile << " emissiveColor " << tmp << " ";
S3D::FormatFloat( tmp, green );
aFile << tmp << " ";
S3D::FormatFloat( tmp, blue);
aFile << tmp << "\n";
S3D::FormatFloat( tmp, shininess );
aFile << " shininess " << tmp << "\n";
specular.GetColor( red, green, blue );
S3D::FormatFloat( tmp, red );
aFile << " specularColor " << tmp << " ";
S3D::FormatFloat( tmp, green );
aFile << tmp << " ";
S3D::FormatFloat( tmp, blue);
aFile << tmp << "\n";
S3D::FormatFloat( tmp, transparency );
aFile << " transparency " << tmp << "\n";
aFile << "} }\n";
return true;
}
bool SGAPPEARANCE::WriteCache( std::ostream& aFile, SGNODE* parentNode )
{
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if( nullptr == parentNode )
{
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wxCHECK_MSG( m_Parent, false, "corrupt data; m_aParent is NULL" );
SGNODE* np = m_Parent;
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while( nullptr != np->GetParent() )
np = np->GetParent();
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if( np->WriteCache( aFile, nullptr ) )
{
m_written = true;
return true;
}
return false;
}
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wxCHECK_MSG( parentNode == m_Parent, false, "corrupt data; parentNode != m_aParent" );
if( !aFile.good() )
{
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wxLogTrace( MASK_3D_SG, "%s:%s:%d * [INFO] bad stream", __FILE__, __FUNCTION__, __LINE__ );
return false;
}
aFile << "[" << GetName() << "]";
S3D::WriteColor( aFile, ambient );
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aFile.write( (char*) &shininess, sizeof( shininess ) );
aFile.write( (char*) &transparency, sizeof( transparency ) );
S3D::WriteColor( aFile, diffuse );
S3D::WriteColor( aFile, emissive );
S3D::WriteColor( aFile, specular );
if( aFile.fail() )
return false;
m_written = true;
return true;
}
bool SGAPPEARANCE::ReadCache( std::istream& aFile, SGNODE* parentNode )
{
S3D::ReadColor( aFile, ambient );
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aFile.read( (char*) &shininess, sizeof( shininess ) );
aFile.read( (char*) &transparency, sizeof( transparency ) );
S3D::ReadColor( aFile, diffuse );
S3D::ReadColor( aFile, emissive );
S3D::ReadColor( aFile, specular );
if( aFile.fail() )
return false;
return true;
}