278 lines
9.5 KiB
Plaintext
278 lines
9.5 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef OSG_ARRAY
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#define OSG_ARRAY 1
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#include <osg/Object>
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#include <osg/GL>
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#include <osg/Vec2>
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#include <osg/Vec3>
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#include <osg/Vec4>
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#include <osg/UByte4>
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#include <vector>
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namespace osg {
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class ArrayVisitor;
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class ConstArrayVisitor;
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class ValueVisitor;
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class ConstValueVisitor;
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class SG_EXPORT Array : public Object
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{
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public:
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enum Type
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{
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ArrayType = 0,
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ByteArrayType = 1,
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ShortArrayType = 2,
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IntArrayType = 3,
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UByteArrayType = 4,
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UShortArrayType = 5,
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UIntArrayType = 6,
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UByte4ArrayType = 7,
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FloatArrayType = 8,
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Vec2ArrayType = 9,
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Vec3ArrayType = 10,
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Vec4ArrayType = 11
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};
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Array(Type arrayType=ArrayType,GLint dataSize=0,GLenum dataType=0):
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_arrayType(arrayType),
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_dataSize(dataSize),
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_dataType(dataType) {}
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Array(const Array& array,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
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Object(array,copyop),
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_arrayType(array._arrayType),
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_dataSize(array._dataSize),
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_dataType(array._dataType) {}
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const Array*>(obj)!=NULL; }
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virtual const char* libraryName() const { return "osg"; }
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virtual const char* className() const;
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virtual void accept(ArrayVisitor&) = 0;
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virtual void accept(ConstArrayVisitor&) const = 0;
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virtual void accept(unsigned int index,ValueVisitor&) = 0;
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virtual void accept(unsigned int index,ConstValueVisitor&) const = 0;
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Type getType() const { return _arrayType; }
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GLint getDataSize() const { return _dataSize; }
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GLenum getDataType() const { return _dataType; }
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virtual const GLvoid* getDataPointer() const = 0;
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virtual unsigned int getNumElements() const = 0;
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protected:
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virtual ~Array() {}
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Type _arrayType;
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GLint _dataSize;
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GLenum _dataType;
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};
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template<typename T, Array::Type ARRAYTYPE, int DataSize, int DataType>
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class TemplateArray : public Array, public std::vector<T>
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{
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public:
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TemplateArray() : Array(ARRAYTYPE,DataSize,DataType) {}
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TemplateArray(const TemplateArray& ta,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
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Array(ta,copyop),
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std::vector<T>(ta) {}
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TemplateArray(unsigned int no) :
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Array(ARRAYTYPE,DataSize,DataType),
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std::vector<T>(no) {}
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TemplateArray(unsigned int no,T* ptr) :
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Array(ARRAYTYPE,DataSize,DataType),
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std::vector<T>(ptr,ptr+no) {}
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template <class InputIterator>
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TemplateArray(InputIterator first,InputIterator last) :
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Array(ARRAYTYPE,DataSize,DataType),
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std::vector<T>(first,last) {}
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virtual Object* cloneType() const { return new TemplateArray(); }
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virtual Object* clone(const CopyOp& copyop) const { return new TemplateArray(*this,copyop); }
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virtual void accept(ArrayVisitor& av) { av.apply(*this); }
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virtual void accept(ConstArrayVisitor& av) const { av.apply(*this); }
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virtual void accept(unsigned int index,ValueVisitor& vv) { vv.apply( (*this)[index] ); }
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virtual void accept(unsigned int index,ConstValueVisitor& vv) const { vv.apply( (*this)[index] );}
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virtual const GLvoid* getDataPointer() const { if (!empty()) return &front(); else return 0; }
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virtual unsigned int getNumElements() const { return size(); }
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protected:
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virtual ~TemplateArray() {}
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};
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class SG_EXPORT IndexArray : public Array
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{
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public:
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IndexArray(Type arrayType=ArrayType,GLint dataSize=0,GLenum dataType=0):
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Array(arrayType,dataSize,dataType) {}
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IndexArray(const Array& array,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
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Array(array,copyop) {}
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virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const IndexArray*>(obj)!=NULL; }
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virtual unsigned int index(unsigned int pos) const = 0;
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protected:
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virtual ~IndexArray() {}
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};
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template<typename T, Array::Type ARRAYTYPE, int DataSize, int DataType>
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class TemplateIndexArray : public IndexArray, public std::vector<T>
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{
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public:
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TemplateIndexArray() : IndexArray(ARRAYTYPE,DataSize,DataType) {}
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TemplateIndexArray(const TemplateIndexArray& ta,const CopyOp& copyop=CopyOp::SHALLOW_COPY):
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IndexArray(ta,copyop),
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std::vector<T>(ta) {}
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TemplateIndexArray(unsigned int no) :
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IndexArray(ARRAYTYPE,DataSize,DataType),
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std::vector<T>(no) {}
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TemplateIndexArray(unsigned int no,T* ptr) :
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IndexArray(ARRAYTYPE,DataSize,DataType),
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std::vector<T>(ptr,ptr+no) {}
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template <class InputIterator>
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TemplateIndexArray(InputIterator first,InputIterator last) :
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IndexArray(ARRAYTYPE,DataSize,DataType),
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std::vector<T>(first,last) {}
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virtual Object* cloneType() const { return new TemplateIndexArray(); }
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virtual Object* clone(const CopyOp& copyop) const { return new TemplateIndexArray(*this,copyop); }
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virtual void accept(ArrayVisitor& av) { av.apply(*this); }
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virtual void accept(ConstArrayVisitor& av) const { av.apply(*this); }
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virtual void accept(unsigned int index,ValueVisitor& vv) { vv.apply( (*this)[index] ); }
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virtual void accept(unsigned int index,ConstValueVisitor& vv) const { vv.apply( (*this)[index] );}
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virtual const GLvoid* getDataPointer() const { if (!empty()) return &front(); else return 0; }
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virtual unsigned int getNumElements() const { return size(); }
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virtual unsigned int index(unsigned int pos) const { return (*this)[pos]; }
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protected:
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virtual ~TemplateIndexArray() {}
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};
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typedef TemplateIndexArray<GLbyte,Array::ByteArrayType,1,GL_BYTE> ByteArray;
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typedef TemplateIndexArray<GLshort,Array::ShortArrayType,1,GL_SHORT> ShortArray;
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typedef TemplateIndexArray<GLint,Array::IntArrayType,1,GL_INT> IntArray;
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typedef TemplateIndexArray<GLubyte,Array::UByteArrayType,1,GL_UNSIGNED_BYTE> UByteArray;
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typedef TemplateIndexArray<GLushort,Array::UShortArrayType,1,GL_UNSIGNED_SHORT> UShortArray;
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typedef TemplateIndexArray<GLuint,Array::UIntArrayType,1,GL_UNSIGNED_INT> UIntArray;
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typedef TemplateArray<GLfloat,Array::FloatArrayType,1,GL_FLOAT> FloatArray;
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typedef TemplateArray<UByte4,Array::UByte4ArrayType,4,GL_UNSIGNED_BYTE> UByte4Array;
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typedef TemplateArray<Vec2,Array::Vec2ArrayType,2,GL_FLOAT> Vec2Array;
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typedef TemplateArray<Vec3,Array::Vec3ArrayType,3,GL_FLOAT> Vec3Array;
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typedef TemplateArray<Vec4,Array::Vec4ArrayType,4,GL_FLOAT> Vec4Array;
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class ArrayVisitor
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{
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public:
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ArrayVisitor() {}
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virtual void apply(Array&) {}
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virtual void apply(ByteArray&) {}
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virtual void apply(ShortArray&) {}
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virtual void apply(IntArray&) {}
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virtual void apply(UByteArray&) {}
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virtual void apply(UShortArray&) {}
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virtual void apply(UIntArray&) {}
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virtual void apply(UByte4Array&) {}
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virtual void apply(FloatArray&) {}
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virtual void apply(Vec2Array&) {}
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virtual void apply(Vec3Array&) {}
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virtual void apply(Vec4Array&) {}
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};
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class ConstArrayVisitor
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{
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public:
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ConstArrayVisitor() {}
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virtual void apply(const Array&) {}
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virtual void apply(const ByteArray&) {}
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virtual void apply(const ShortArray&) {}
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virtual void apply(const IntArray&) {}
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virtual void apply(const UByteArray&) {}
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virtual void apply(const UShortArray&) {}
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virtual void apply(const UIntArray&) {}
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virtual void apply(const UByte4Array&) {}
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virtual void apply(const FloatArray&) {}
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virtual void apply(const Vec2Array&) {}
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virtual void apply(const Vec3Array&) {}
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virtual void apply(const Vec4Array&) {}
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};
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class ValueVisitor
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{
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public:
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ValueVisitor() {}
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virtual void apply(GLbyte&) {}
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virtual void apply(GLshort&) {}
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virtual void apply(GLint&) {}
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virtual void apply(GLushort&) {}
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virtual void apply(GLubyte&) {}
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virtual void apply(GLuint&) {}
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virtual void apply(GLfloat&) {}
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virtual void apply(UByte4&) {}
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virtual void apply(Vec2&) {}
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virtual void apply(Vec3&) {}
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virtual void apply(Vec4&) {}
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};
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class ConstValueVisitor
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{
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public:
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ConstValueVisitor() {}
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virtual void apply(const GLbyte&) {}
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virtual void apply(const GLshort&) {}
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virtual void apply(const GLint&) {}
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virtual void apply(const GLushort&) {}
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virtual void apply(const GLubyte&) {}
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virtual void apply(const GLuint&) {}
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virtual void apply(const GLfloat&) {}
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virtual void apply(const UByte4&) {}
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virtual void apply(const Vec2&) {}
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virtual void apply(const Vec3&) {}
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virtual void apply(const Vec4&) {}
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};
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}
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#endif
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