/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield * * This library is open source and may be redistributed and/or modified under * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or * (at your option) any later version. The full license is in LICENSE file * included with this distribution, and on the openscenegraph.org website. * * This library 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 * OpenSceneGraph Public License for more details. * * osg/PrimitiveSetIndirect * Author: Julien Valentin 2016-2017 */ #ifndef OSG_INDIRECTPRIMITIVESET #define OSG_INDIRECTPRIMITIVESET 1 #include namespace osg { ///common interface for IndirectCommandDrawArrayss class OSG_EXPORT IndirectCommandDrawArrays: public BufferData { public: IndirectCommandDrawArrays() : BufferData() { setBufferObject(new DrawIndirectBufferObject()); } IndirectCommandDrawArrays(const IndirectCommandDrawArrays& copy,const CopyOp& copyop/*=CopyOp::SHALLOW_COPY*/) : BufferData(copy, copyop) {} virtual unsigned int getTotalDataSize() const { return getNumElements()*getElementSize(); } virtual unsigned int & count(const unsigned int&index)=0; virtual unsigned int & instanceCount(const unsigned int&index)=0; virtual unsigned int & first(const unsigned int&index)=0; virtual unsigned int & baseInstance(const unsigned int&index)=0; virtual unsigned int getElementSize() const = 0; virtual unsigned int getNumElements() const = 0; virtual void resize(const unsigned int) = 0; }; class OSG_EXPORT IndirectCommandDrawElements: public BufferData { public: IndirectCommandDrawElements() : BufferData() { setBufferObject(new DrawIndirectBufferObject()); } IndirectCommandDrawElements(const IndirectCommandDrawElements& copy,const CopyOp& copyop/*=CopyOp::SHALLOW_COPY*/) : BufferData(copy, copyop) {} virtual unsigned int getTotalDataSize() const { return getNumElements()*getElementSize(); } virtual unsigned int & count(const unsigned int&index)=0; virtual unsigned int & instanceCount(const unsigned int&index)=0; virtual unsigned int & firstIndex(const unsigned int&index)=0; virtual unsigned int & baseVertex(const unsigned int&index)=0; virtual unsigned int & baseInstance(const unsigned int&index)=0; virtual unsigned int getElementSize()const = 0; virtual unsigned int getNumElements() const = 0; virtual void resize(const unsigned int) = 0; }; /// DrawArraysCommand struct DrawArraysIndirectCommand { DrawArraysIndirectCommand(unsigned int pcount = 0, unsigned int pinstanceCount = 0, unsigned int pfirst = 0, unsigned int pbaseInstance = 0) : count(pcount), instanceCount(pinstanceCount), first(pfirst), baseInstance(pbaseInstance) {} unsigned int count; unsigned int instanceCount; unsigned int first; unsigned int baseInstance; }; /// default implementation of IndirectCommandDrawArrays /// DefaultIndirectCommandDrawArrays to be hosted on GPU class OSG_EXPORT DefaultIndirectCommandDrawArrays: public IndirectCommandDrawArrays, public MixinVector { public: META_Object(osg,DefaultIndirectCommandDrawArrays) DefaultIndirectCommandDrawArrays() : IndirectCommandDrawArrays(), MixinVector() {} DefaultIndirectCommandDrawArrays(const DefaultIndirectCommandDrawArrays& copy,const CopyOp& copyop/*=CopyOp::SHALLOW_COPY*/) : IndirectCommandDrawArrays(copy, copyop),MixinVector() {} virtual const GLvoid* getDataPointer() const { return empty()?0:&front(); } virtual unsigned int getElementSize()const { return 16u; }; virtual unsigned int getNumElements() const { return static_cast(size()); } virtual void resize(const unsigned int n) {resize(n);} virtual unsigned int & count(const unsigned int&index) { return at(index).count; } virtual unsigned int & instanceCount(const unsigned int&index) { return at(index).instanceCount; } virtual unsigned int & first(const unsigned int&index) { return at(index).first; } virtual unsigned int & baseInstance(const unsigned int&index) { return at(index).baseInstance; } }; /// default implementation of IndirectCommandDrawElements /// DrawElementsCommand struct DrawElementsIndirectCommand { DrawElementsIndirectCommand(unsigned int pcount = 0, unsigned int pinstanceCount = 0, unsigned int pfirstIndex = 0, unsigned int pbaseVertex = 0, unsigned int pbaseInstance = 0) : count(pcount), instanceCount(pinstanceCount), firstIndex(pfirstIndex), baseVertex(pbaseVertex), baseInstance(pbaseInstance) {} unsigned int count; unsigned int instanceCount; unsigned int firstIndex; unsigned int baseVertex; unsigned int baseInstance; }; /// vector of DrawElementsCommand to be hosted on GPU class OSG_EXPORT DefaultIndirectCommandDrawElements: public IndirectCommandDrawElements, public MixinVector { public: META_Object(osg,DefaultIndirectCommandDrawElements) DefaultIndirectCommandDrawElements() : IndirectCommandDrawElements(), MixinVector() {} DefaultIndirectCommandDrawElements(const DefaultIndirectCommandDrawElements& copy,const CopyOp& copyop/*=CopyOp::SHALLOW_COPY*/) : IndirectCommandDrawElements(copy, copyop), MixinVector() {} virtual const GLvoid* getDataPointer() const { return empty()?0:&front(); } virtual unsigned int getNumElements() const { return static_cast(size()); } virtual unsigned int getElementSize()const { return 20u; }; virtual void resize(const unsigned int n) {resize(n);} virtual unsigned int & count(const unsigned int&index) { return at(index).count; } virtual unsigned int & instanceCount(const unsigned int&index) { return at(index).instanceCount; } virtual unsigned int & firstIndex(const unsigned int&index) { return at(index).firstIndex; } virtual unsigned int & baseVertex(const unsigned int&index) { return at(index).baseVertex; } virtual unsigned int & baseInstance(const unsigned int&index) { return at(index).baseInstance; } }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The DrawElementsIndirect base PrimitiveSet /// class OSG_EXPORT DrawElementsIndirect : public DrawElements { public: DrawElementsIndirect(Type primType=PrimitiveType, GLenum mode = 0,unsigned int firstCommand = 0, GLsizei stride = 0) : DrawElements(primType,mode, 0),_firstCommand(firstCommand),_stride(stride) { setIndirectCommandArray(new DefaultIndirectCommandDrawElements()); } DrawElementsIndirect(const DrawElementsIndirect& rhs,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElements(rhs,copyop),_firstCommand(rhs._firstCommand), _stride(rhs._stride) { _indirectCommandArray=(DefaultIndirectCommandDrawElements*)copyop(rhs._indirectCommandArray.get()); } /// set command array of this indirect primitive set inline void setIndirectCommandArray(IndirectCommandDrawElements*idc) { _indirectCommandArray = idc; //ensure bo of idc is of the correct type if(!dynamic_cast(_indirectCommandArray->getBufferObject())) _indirectCommandArray->setBufferObject(new DrawIndirectBufferObject()); } /// get command array of this indirect primitive set inline IndirectCommandDrawElements* getIndirectCommandArray() { return _indirectCommandArray; } inline const IndirectCommandDrawElements* getIndirectCommandArray() const { return _indirectCommandArray; } ///Further methods are for advanced DI when you plan to use your own IndirectCommandElement (stride) ///or if you want to draw a particular command index of the IndirectCommandElement(FirstCommandToDraw) /// set offset of the first command to draw in the IndirectCommandDrawArrays inline void setFirstCommandToDraw( unsigned int i) { _firstCommand = i; } /// get offset of the first command in the IndirectCommandDrawArrays inline unsigned int getFirstCommandToDraw() const { return _firstCommand; } /// stride (to set if you use custom CommandArray) inline void setStride( GLsizei i) { _stride=i; } /// stride (to set if you use custom CommandArray) inline GLsizei getStride() const { return _stride; } virtual unsigned int getNumPrimitives() const=0; protected: virtual ~DrawElementsIndirect() {} unsigned int _firstCommand; GLsizei _stride; ref_ptr _indirectCommandArray; }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The DrawElementsIndirectUByte PrimitiveSet /// class OSG_EXPORT DrawElementsIndirectUByte : public DrawElementsIndirect, public VectorGLubyte { public: typedef VectorGLubyte vector_type; DrawElementsIndirectUByte(GLenum mode = 0/*,unsigned int firstCommand = 0, GLsizei stride = 0*/) : DrawElementsIndirect(DrawElementsUByteIndirectPrimitiveType,mode) {} DrawElementsIndirectUByte(const DrawElementsIndirectUByte& array, const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElementsIndirect(array,copyop), vector_type(array) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. * \param ptr Pointer to a GLubyte to copy index data from. */ DrawElementsIndirectUByte(GLenum mode, unsigned int no, const GLubyte* ptr) : DrawElementsIndirect(DrawElementsUByteIndirectPrimitiveType,mode), vector_type(ptr,ptr+no) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. */ DrawElementsIndirectUByte(GLenum mode, unsigned int no) : DrawElementsIndirect(DrawElementsUByteIndirectPrimitiveType,mode), vector_type(no) {} virtual Object* cloneType() const { return new DrawElementsIndirectUByte(); } virtual Object* clone(const CopyOp& copyop) const { return new DrawElementsIndirectUByte(*this,copyop); } virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* libraryName() const { return "osg"; } virtual const char* className() const { return "DrawElementsIndirectUByte"; } virtual const GLvoid* getDataPointer() const { return empty()?0:&front(); } virtual unsigned int getTotalDataSize() const { return static_cast(size()); } virtual bool supportsBufferObject() const { return false; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumIndices() const { return static_cast(size()); } virtual unsigned int index(unsigned int pos) const { return (*this)[pos]; } virtual void offsetIndices(int offset); virtual GLenum getDataType() { return GL_UNSIGNED_BYTE; } virtual void resizeElements(unsigned int numIndices) { resize(numIndices); } virtual void reserveElements(unsigned int numIndices) { reserve(numIndices); } virtual void setElement(unsigned int i, unsigned int v) { (*this)[i] = v; } virtual unsigned int getElement(unsigned int i) { return (*this)[i]; } virtual void addElement(unsigned int v) { push_back(GLubyte(v)); } virtual unsigned int getNumPrimitives() const; protected: virtual ~DrawElementsIndirectUByte(); }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The DrawElementsIndirectUShort PrimitiveSet /// class OSG_EXPORT DrawElementsIndirectUShort : public DrawElementsIndirect, public VectorGLushort { public: typedef VectorGLushort vector_type; DrawElementsIndirectUShort(GLenum mode = 0/*,unsigned int firstCommand = 0, GLsizei stride = 0*/) : DrawElementsIndirect(DrawElementsUShortIndirectPrimitiveType,mode) {} DrawElementsIndirectUShort(const DrawElementsIndirectUShort& array,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElementsIndirect(array,copyop), vector_type(array) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. * \param ptr Pointer to a GLushort to copy index data from. */ DrawElementsIndirectUShort(GLenum mode, unsigned int no, const GLushort* ptr) : DrawElementsIndirect(DrawElementsUShortIndirectPrimitiveType,mode), vector_type(ptr,ptr+no) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. */ DrawElementsIndirectUShort(GLenum mode, unsigned int no) : DrawElementsIndirect(DrawElementsUShortIndirectPrimitiveType,mode), vector_type(no) {} template DrawElementsIndirectUShort(GLenum mode, InputIterator first,InputIterator last) : DrawElementsIndirect(DrawElementsUShortIndirectPrimitiveType,mode), vector_type(first,last) {} virtual Object* cloneType() const { return new DrawElementsIndirectUShort(); } virtual Object* clone(const CopyOp& copyop) const { return new DrawElementsIndirectUShort(*this,copyop); } virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* libraryName() const { return "osg"; } virtual const char* className() const { return "DrawElementsIndirectUShort"; } virtual const GLvoid* getDataPointer() const { return empty()?0:&front(); } virtual unsigned int getTotalDataSize() const { return 2u*static_cast(size()); } virtual bool supportsBufferObject() const { return false; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumIndices() const { return static_cast(size()); } virtual unsigned int index(unsigned int pos) const { return (*this)[pos]; } virtual void offsetIndices(int offset); virtual GLenum getDataType() { return GL_UNSIGNED_SHORT; } virtual void resizeElements(unsigned int numIndices) { resize(numIndices); } virtual void reserveElements(unsigned int numIndices) { reserve(numIndices); } virtual void setElement(unsigned int i, unsigned int v) { (*this)[i] = v; } virtual unsigned int getElement(unsigned int i) { return (*this)[i]; } virtual void addElement(unsigned int v) { push_back(GLushort(v)); } virtual unsigned int getNumPrimitives() const; protected: virtual ~DrawElementsIndirectUShort(); }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The DrawElementsIndirectUInt PrimitiveSet /// class OSG_EXPORT DrawElementsIndirectUInt : public DrawElementsIndirect, public VectorGLuint { public: typedef VectorGLuint vector_type; DrawElementsIndirectUInt(GLenum mode = 0/*,unsigned int firstCommand = 0, GLsizei stride = 0*/) : DrawElementsIndirect(DrawElementsUIntIndirectPrimitiveType,mode) {} DrawElementsIndirectUInt(const DrawElementsIndirectUInt& array,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElementsIndirect(array,copyop), vector_type(array) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. * \param ptr Pointer to a GLunsigned int to copy index data from. */ DrawElementsIndirectUInt(GLenum mode, unsigned int no, const GLuint* ptr) : DrawElementsIndirect(DrawElementsUIntIndirectPrimitiveType,mode), vector_type(ptr,ptr+no) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. */ DrawElementsIndirectUInt(GLenum mode, unsigned int no) : DrawElementsIndirect(DrawElementsUIntIndirectPrimitiveType,mode), vector_type(no) {} template DrawElementsIndirectUInt(GLenum mode, InputIterator first,InputIterator last) : DrawElementsIndirect(DrawElementsUIntIndirectPrimitiveType,mode), vector_type(first,last) {} virtual Object* cloneType() const { return new DrawElementsIndirectUInt(); } virtual Object* clone(const CopyOp& copyop) const { return new DrawElementsIndirectUInt(*this,copyop); } virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* libraryName() const { return "osg"; } virtual const char* className() const { return "DrawElementsIndirectUInt"; } virtual const GLvoid* getDataPointer() const { return empty()?0:&front(); } virtual unsigned int getTotalDataSize() const { return 4u*static_cast(size()); } virtual bool supportsBufferObject() const { return false; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumIndices() const { return static_cast(size()); } virtual unsigned int index(unsigned int pos) const { return (*this)[pos]; } virtual void offsetIndices(int offset); virtual GLenum getDataType() { return GL_UNSIGNED_INT; } virtual void resizeElements(unsigned int numIndices) { resize(numIndices); } virtual void reserveElements(unsigned int numIndices) { reserve(numIndices); } virtual void setElement(unsigned int i, unsigned int v) { (*this)[i] = v; } virtual unsigned int getElement(unsigned int i) { return (*this)[i]; } virtual void addElement(unsigned int v) { push_back(GLuint(v)); } virtual unsigned int getNumPrimitives() const; protected: virtual ~DrawElementsIndirectUInt(); }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The MultiDrawElementsIndirect PrimitiveSets /// class OSG_EXPORT MultiDrawElementsIndirectUShort : public DrawElementsIndirectUShort { public: MultiDrawElementsIndirectUShort(GLenum mode = 0/*,unsigned int firstCommand = 0, GLsizei stride = 0*/) : DrawElementsIndirectUShort(mode),_count(0) { _primitiveType=(Type(MultiDrawElementsUShortIndirectPrimitiveType)); } MultiDrawElementsIndirectUShort(const MultiDrawElementsIndirectUShort& mdi,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElementsIndirectUShort(mdi,copyop),_count(mdi._count) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. * \param ptr Pointer to a GLunsigned int to copy index data from. */ MultiDrawElementsIndirectUShort(GLenum mode, unsigned int no, const GLushort* ptr) : DrawElementsIndirectUShort(mode,no,ptr) {_primitiveType=(Type(MultiDrawElementsUShortIndirectPrimitiveType));} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. */ MultiDrawElementsIndirectUShort(GLenum mode, unsigned int no) : DrawElementsIndirectUShort(mode,no) {_primitiveType=(Type(MultiDrawElementsUShortIndirectPrimitiveType));} template MultiDrawElementsIndirectUShort(GLenum mode, InputIterator first,InputIterator last) : DrawElementsIndirectUShort(mode,first,last) {_primitiveType=(Type(MultiDrawElementsUShortIndirectPrimitiveType));} virtual osg::Object* cloneType() const { return new MultiDrawElementsIndirectUShort(); } virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new MultiDrawElementsIndirectUShort(*this,copyop); } virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* className() const { return "MultiDrawElementsIndirectUShort"; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumPrimitives() const; ///if you want to draw a subset of the IndirectCommandElement(FirstCommandToDraw,NumCommandsToDraw) /// count of Indirect Command to execute inline void setNumCommandsToDraw( unsigned int i) { _count=i; } /// count of Indirect Command to execute inline unsigned int getNumCommandsToDraw()const { return _count; } protected: unsigned int _count; virtual ~MultiDrawElementsIndirectUShort(); }; class OSG_EXPORT MultiDrawElementsIndirectUByte : public DrawElementsIndirectUByte { public: MultiDrawElementsIndirectUByte(GLenum mode = 0) : DrawElementsIndirectUByte(mode),_count(0) { _primitiveType=(Type(MultiDrawElementsUByteIndirectPrimitiveType)); } MultiDrawElementsIndirectUByte(const MultiDrawElementsIndirectUByte& mdi,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElementsIndirectUByte(mdi,copyop),_count(mdi._count) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. * \param ptr Pointer to a GLunsigned int to copy index data from. */ MultiDrawElementsIndirectUByte(GLenum mode, unsigned int no, const GLubyte* ptr) : DrawElementsIndirectUByte(mode,no,ptr) {_primitiveType=(Type(MultiDrawElementsUByteIndirectPrimitiveType));} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. */ MultiDrawElementsIndirectUByte(GLenum mode, unsigned int no) : DrawElementsIndirectUByte(mode,no) {_primitiveType=(Type(MultiDrawElementsUByteIndirectPrimitiveType));} template MultiDrawElementsIndirectUByte(GLenum mode, InputIterator first,InputIterator last) : DrawElementsIndirectUByte(mode,first,last) {_primitiveType=(Type(MultiDrawElementsUByteIndirectPrimitiveType));} virtual osg::Object* cloneType() const { return new MultiDrawElementsIndirectUByte(); } virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new MultiDrawElementsIndirectUByte(*this,copyop); } virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* className() const { return "MultiDrawElementsIndirectUByte"; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumPrimitives() const; /// count of Indirect Command to execute inline void setNumCommandsToDraw( unsigned int i) { _count=i; } /// count of Indirect Command to execute inline unsigned int getNumCommandsToDraw()const { return _count; } protected: unsigned int _count; virtual ~MultiDrawElementsIndirectUByte(); }; class OSG_EXPORT MultiDrawElementsIndirectUInt : public DrawElementsIndirectUInt { public: MultiDrawElementsIndirectUInt(GLenum mode = 0) : DrawElementsIndirectUInt(mode),_count(0) { _primitiveType=(Type(MultiDrawElementsUIntIndirectPrimitiveType)); } MultiDrawElementsIndirectUInt(const MultiDrawElementsIndirectUInt& mdi,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : DrawElementsIndirectUInt(mdi,copyop),_count(mdi._count) {} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. * \param ptr Pointer to a GLunsigned int to copy index data from. */ MultiDrawElementsIndirectUInt(GLenum mode, unsigned int no, const GLuint* ptr) : DrawElementsIndirectUInt(mode,no,ptr) {_primitiveType=(Type(MultiDrawElementsUIntIndirectPrimitiveType));} /** * \param mode One of osg::PrimitiveSet::Mode. Determines the type of primitives used. * \param no Number of intended elements. This will be the size of the underlying vector. */ MultiDrawElementsIndirectUInt(GLenum mode, unsigned int no) : DrawElementsIndirectUInt(mode,no) {_primitiveType=(Type(MultiDrawElementsUIntIndirectPrimitiveType));} template MultiDrawElementsIndirectUInt(GLenum mode, InputIterator first,InputIterator last) : DrawElementsIndirectUInt(mode,first,last) {_primitiveType=(Type(MultiDrawElementsUIntIndirectPrimitiveType));} virtual osg::Object* cloneType() const { return new MultiDrawElementsIndirectUInt(); } virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new MultiDrawElementsIndirectUInt(*this,copyop); } virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* className() const { return "MultiDrawElementsIndirectUInt"; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumPrimitives() const; /// count of Indirect Command to execute inline void setNumCommandsToDraw( unsigned int i) { _count=i; } /// count of Indirect Command to execute inline unsigned int getNumCommandsToDraw()const { return _count; } protected: unsigned int _count; virtual ~MultiDrawElementsIndirectUInt(); }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The MultiDrawArraysIndirect PrimitiveSet /// class OSG_EXPORT DrawArraysIndirect : public osg::PrimitiveSet { public: DrawArraysIndirect(GLenum mode=0, unsigned int firstcommand = 0, GLsizei stride = 0) : osg::PrimitiveSet(Type(DrawArraysIndirectPrimitiveType), mode), _firstCommand(firstcommand), _stride(stride) { setIndirectCommandArray(new DefaultIndirectCommandDrawArrays); } DrawArraysIndirect(const DrawArraysIndirect& dal,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : osg::PrimitiveSet(dal,copyop), _firstCommand(dal._firstCommand), _stride(dal._stride), _indirectCommandArray((DefaultIndirectCommandDrawArrays*)copyop( dal._indirectCommandArray.get())) {} virtual osg::Object* cloneType() const { return new DrawArraysIndirect(); } virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new DrawArraysIndirect(*this,copyop); } virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* libraryName() const { return "osg"; } virtual const char* className() const { return "DrawArraysIndirect"; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumIndices() const; virtual unsigned int index(unsigned int pos) const; virtual void offsetIndices(int offset); virtual unsigned int getNumPrimitives() const; /// stride (to set if you use custom CommandArray) inline void setStride( GLsizei i) { _stride=i; } /// stride (to set if you use custom CommandArray) inline GLsizei getStride()const { return _stride; } /// set offset of the first command in the IndirectCommandDrawArrays inline void setFirstCommandToDraw( unsigned int i) { _firstCommand=i; } /// get offset of the first command in the IndirectCommandDrawArrays inline unsigned int getFirstCommandToDraw() const { return _firstCommand; } inline void setIndirectCommandArray(IndirectCommandDrawArrays*idc) { _indirectCommandArray = idc; //ensure bo of idc is of the correct type if(!dynamic_cast(_indirectCommandArray->getBufferObject())) _indirectCommandArray->setBufferObject(new DrawIndirectBufferObject()); } inline const IndirectCommandDrawArrays* getIndirectCommandArray() const { return _indirectCommandArray; } inline IndirectCommandDrawArrays* getIndirectCommandArray() { return _indirectCommandArray; } protected: unsigned int _firstCommand; GLsizei _stride; ref_ptr _indirectCommandArray; }; /////////////////////////////////////////////////////////////////////////////////////// /// \brief The MultiDrawArraysIndirect PrimitiveSet /// class OSG_EXPORT MultiDrawArraysIndirect : public DrawArraysIndirect { public: MultiDrawArraysIndirect(GLenum mode=0, unsigned int firstcommand = 0, unsigned int count = 0, GLsizei stride = 0) : osg::DrawArraysIndirect(mode, firstcommand, stride), _count(count) { _primitiveType=Type(MultiDrawArraysIndirectPrimitiveType); } MultiDrawArraysIndirect(const MultiDrawArraysIndirect& dal,const CopyOp& copyop=CopyOp::SHALLOW_COPY) : osg::DrawArraysIndirect(dal,copyop), _count(dal._count) {} virtual osg::Object* cloneType() const { return new MultiDrawArraysIndirect(); } virtual osg::Object* clone(const osg::CopyOp& copyop) const { return new MultiDrawArraysIndirect(*this,copyop); } virtual bool isSameKindAs(const osg::Object* obj) const { return dynamic_cast(obj)!=NULL; } virtual const char* className() const { return "MultiDrawArraysIndirect"; } virtual void draw(State& state, bool useVertexBufferObjects) const; virtual void accept(PrimitiveFunctor& functor) const; virtual void accept(PrimitiveIndexFunctor& functor) const; virtual unsigned int getNumIndices() const; virtual unsigned int index(unsigned int pos) const; virtual void offsetIndices(int offset); virtual unsigned int getNumPrimitives() const; /// count of Indirect Command to execute inline void setNumCommandsToDraw( unsigned int i) { _count=i; } /// count of Indirect Command to execute inline unsigned int getNumCommandsToDraw()const { return _count; } protected: unsigned int _count; }; } #endif