1 // Copyright (C) 2009 - 2012 Mathias Froehlich - Mathias.Froehlich@web.de
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Library General Public
5 // License as published by the Free Software Foundation; either
6 // version 2 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Library General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 # include <simgear_config.h>
22 #include <simgear/compiler.h>
24 #include "HLAArrayDataType.hxx"
26 #include "HLAArrayDataElement.hxx"
30 HLAArrayDataType::HLAArrayDataType(const std::string& name) :
37 HLAArrayDataType::~HLAArrayDataType()
42 HLAArrayDataType::accept(HLADataTypeVisitor& visitor) const
47 const HLAArrayDataType*
48 HLAArrayDataType::toArrayDataType() const
54 HLAArrayDataType::releaseDataTypeReferences()
57 HLADataType::releaseDataTypeReferences();
61 HLAArrayDataType::setElementDataType(const HLADataType* elementDataType)
63 _elementDataType = elementDataType;
67 HLAArrayDataType::setIsOpaque(bool isOpaque)
73 HLAArrayDataType::setIsString(bool isString)
79 HLAArrayDataType::_recomputeAlignmentImplementation()
81 unsigned alignment = 1;
82 if (const HLADataType* dataType = getElementDataType())
83 alignment = std::max(alignment, dataType->getAlignment());
84 setAlignment(alignment);
87 ///////////////////////////////////////////////////////////////////////////////////
89 HLAFixedArrayDataType::HLAFixedArrayDataType(const std::string& name) :
90 HLAArrayDataType(name)
94 HLAFixedArrayDataType::~HLAFixedArrayDataType()
99 HLAFixedArrayDataType::accept(HLADataTypeVisitor& visitor) const
101 visitor.apply(*this);
105 HLAFixedArrayDataType::decode(HLADecodeStream& stream, HLAAbstractArrayDataElement& value) const
107 stream.alignOffsetForSize(getAlignment());
108 unsigned numElements = getNumElements();
109 if (!value.setNumElements(numElements))
111 for (unsigned i = 0; i < numElements; ++i)
112 if (!value.decodeElement(stream, i))
118 HLAFixedArrayDataType::encode(HLAEncodeStream& stream, const HLAAbstractArrayDataElement& value) const
120 stream.alignOffsetForSize(getAlignment());
121 unsigned numElementsType = getNumElements();
122 unsigned numElementsValue = value.getNumElements();
123 unsigned numElements = SGMisc<unsigned>::min(numElementsType, numElementsValue);
125 for (; i < numElements; ++i)
126 if (!value.encodeElement(stream, i))
128 for (; i < numElementsType; ++i) {
129 HLADataTypeEncodeVisitor visitor(stream);
130 getElementDataType()->accept(visitor);
135 /////////////////////////////////////////////////////////////////////////////////
137 HLAVariableArrayDataType::HLAVariableArrayDataType(const std::string& name) :
138 HLAArrayDataType(name)
140 setSizeDataType(new HLAUInt32BEDataType);
143 HLAVariableArrayDataType::~HLAVariableArrayDataType()
148 HLAVariableArrayDataType::accept(HLADataTypeVisitor& visitor) const
150 visitor.apply(*this);
154 HLAVariableArrayDataType::decode(HLADecodeStream& stream, HLAAbstractArrayDataElement& value) const
156 stream.alignOffsetForSize(getAlignment());
157 HLATemplateDecodeVisitor<unsigned> numElementsVisitor(stream);
158 getSizeDataType()->accept(numElementsVisitor);
159 unsigned numElements = numElementsVisitor.getValue();
160 if (!value.setNumElements(numElements))
162 for (unsigned i = 0; i < numElements; ++i)
163 if (!value.decodeElement(stream, i))
169 HLAVariableArrayDataType::encode(HLAEncodeStream& stream, const HLAAbstractArrayDataElement& value) const
171 stream.alignOffsetForSize(getAlignment());
172 unsigned numElements = value.getNumElements();
173 HLATemplateEncodeVisitor<unsigned> numElementsVisitor(stream, numElements);
174 getSizeDataType()->accept(numElementsVisitor);
175 for (unsigned i = 0; i < numElements; ++i)
176 if (!value.encodeElement(stream, i))
182 HLAVariableArrayDataType::setSizeDataType(const HLABasicDataType* sizeDataType)
184 _sizeDataType = sizeDataType;
188 HLAVariableArrayDataType::_recomputeAlignmentImplementation()
190 unsigned alignment = 1;
191 if (const HLADataType* dataType = getElementDataType())
192 alignment = std::max(alignment, dataType->getAlignment());
193 if (const HLADataType* dataType = getSizeDataType())
194 alignment = std::max(alignment, dataType->getAlignment());
195 setAlignment(alignment);
198 } // namespace simgear