391 lines
18 KiB
C++
391 lines
18 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 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.
|
|
*/
|
|
|
|
#ifndef OSG_GEOMETRY
|
|
#define OSG_GEOMETRY 1
|
|
|
|
#include <osg/Drawable>
|
|
#include <osg/Vec2>
|
|
#include <osg/Vec3>
|
|
#include <osg/Vec4>
|
|
#include <osg/Array>
|
|
#include <osg/PrimitiveSet>
|
|
|
|
namespace osg {
|
|
|
|
|
|
class SG_EXPORT Geometry : public Drawable
|
|
{
|
|
public:
|
|
|
|
Geometry();
|
|
|
|
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
|
|
Geometry(const Geometry& geometry,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
|
|
|
|
virtual Object* cloneType() const { return new Geometry(); }
|
|
virtual Object* clone(const CopyOp& copyop) const { return new Geometry(*this,copyop); }
|
|
virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const Geometry*>(obj)!=NULL; }
|
|
virtual const char* libraryName() const { return "osg"; }
|
|
virtual const char* className() const { return "Geometry"; }
|
|
|
|
virtual Geometry* asGeometry() { return this; }
|
|
virtual const Geometry* asGeometry() const { return this; }
|
|
|
|
enum AttributeBinding
|
|
{
|
|
BIND_OFF=0,
|
|
BIND_OVERALL,
|
|
BIND_PER_PRIMITIVE_SET,
|
|
BIND_PER_PRIMITIVE,
|
|
BIND_PER_VERTEX
|
|
};
|
|
|
|
struct ArrayData
|
|
{
|
|
ArrayData():
|
|
binding(BIND_OFF),
|
|
normalize(GL_FALSE),
|
|
offset(0) {}
|
|
|
|
ArrayData(const ArrayData& data,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
|
|
|
|
ArrayData(Array* a, AttributeBinding b, GLboolean n = GL_FALSE):
|
|
array(a),
|
|
indices(0),
|
|
binding(b),
|
|
normalize(n),
|
|
offset(0) {}
|
|
|
|
ArrayData(Array* a, IndexArray* i, AttributeBinding b, GLboolean n = GL_FALSE):
|
|
array(a),
|
|
indices(i),
|
|
binding(b),
|
|
normalize(n),
|
|
offset(0) {}
|
|
|
|
ArrayData& operator = (const ArrayData& rhs)
|
|
{
|
|
array = rhs.array;
|
|
indices = rhs.indices;
|
|
binding = rhs.binding;
|
|
normalize = rhs.normalize;
|
|
offset = rhs.offset;
|
|
return *this;
|
|
}
|
|
|
|
ref_ptr<Array> array;
|
|
ref_ptr<IndexArray> indices;
|
|
AttributeBinding binding;
|
|
GLboolean normalize;
|
|
mutable unsigned int offset;
|
|
};
|
|
|
|
struct Vec3ArrayData
|
|
{
|
|
Vec3ArrayData():
|
|
binding(BIND_OFF),
|
|
normalize(GL_FALSE),
|
|
offset(0) {}
|
|
|
|
Vec3ArrayData(const Vec3ArrayData& data,const CopyOp& copyop=CopyOp::SHALLOW_COPY);
|
|
|
|
Vec3ArrayData(Vec3Array* a, AttributeBinding b, GLboolean n = GL_FALSE):
|
|
array(a),
|
|
indices(0),
|
|
binding(b),
|
|
normalize(n),
|
|
offset(0) {}
|
|
|
|
Vec3ArrayData(Vec3Array* a, IndexArray* i, AttributeBinding b, GLboolean n = GL_FALSE):
|
|
array(a),
|
|
indices(i),
|
|
binding(b),
|
|
normalize(n),
|
|
offset(0) {}
|
|
|
|
Vec3ArrayData& operator = (const Vec3ArrayData& rhs)
|
|
{
|
|
array = rhs.array;
|
|
indices = rhs.indices;
|
|
binding = rhs.binding;
|
|
normalize = rhs.normalize;
|
|
offset = rhs.offset;
|
|
return *this;
|
|
}
|
|
|
|
ref_ptr<Vec3Array> array;
|
|
ref_ptr<IndexArray> indices;
|
|
AttributeBinding binding;
|
|
GLboolean normalize;
|
|
mutable unsigned int offset;
|
|
};
|
|
|
|
/** static ArrayData which is returned get getTexCoordData(i) const and getVertexAttribData(i) const
|
|
* when i is out of range.*/
|
|
static const ArrayData s_InvalidArrayData;
|
|
|
|
typedef std::vector< ArrayData > ArrayList;
|
|
|
|
|
|
void setVertexArray(Array* array) { _vertexData.array = array; dirtyDisplayList(); dirtyBound(); }
|
|
Array* getVertexArray() { return _vertexData.array.get(); }
|
|
const Array* getVertexArray() const { return _vertexData.array.get(); }
|
|
|
|
void setVertexIndices(IndexArray* array) { _vertexData.indices = array; computeFastPathsUsed(); dirtyDisplayList(); dirtyBound(); }
|
|
IndexArray* getVertexIndices() { return _vertexData.indices.get(); }
|
|
const IndexArray* getVertexIndices() const { return _vertexData.indices.get(); }
|
|
|
|
void setVertexData(const ArrayData& arrayData) { _vertexData = arrayData; }
|
|
ArrayData& getVertexData() { return _vertexData; }
|
|
const ArrayData& getVertexData() const { return _vertexData; }
|
|
|
|
|
|
void setNormalBinding(AttributeBinding ab) { _normalData.binding = ab; dirtyDisplayList(); computeFastPathsUsed(); }
|
|
AttributeBinding getNormalBinding() const { return _normalData.binding; }
|
|
|
|
void setNormalArray(Vec3Array* array) { _normalData.array = array; if (!_normalData.array.valid()) _normalData.binding=BIND_OFF; computeFastPathsUsed(); dirtyDisplayList(); }
|
|
Vec3Array* getNormalArray() { return _normalData.array.get(); }
|
|
const Vec3Array* getNormalArray() const { return _normalData.array.get(); }
|
|
|
|
void setNormalIndices(IndexArray* array) { _normalData.indices = array; computeFastPathsUsed(); dirtyDisplayList(); }
|
|
IndexArray* getNormalIndices() { return _normalData.indices.get(); }
|
|
const IndexArray* getNormalIndices() const { return _normalData.indices.get(); }
|
|
|
|
void setNormalData(const Vec3ArrayData& arrayData) { _normalData = arrayData; }
|
|
Vec3ArrayData& getNormalData() { return _normalData; }
|
|
const Vec3ArrayData& getNormalData() const { return _normalData; }
|
|
|
|
|
|
|
|
void setColorBinding(AttributeBinding ab) { _colorData.binding = ab; computeFastPathsUsed();}
|
|
AttributeBinding getColorBinding() const { return _colorData.binding; }
|
|
|
|
void setColorArray(Array* array) { _colorData.array = array; if (!_colorData.array.valid()) _colorData.binding=BIND_OFF; computeFastPathsUsed(); dirtyDisplayList(); }
|
|
Array* getColorArray() { return _colorData.array.get(); }
|
|
const Array* getColorArray() const { return _colorData.array.get(); }
|
|
|
|
void setColorIndices(IndexArray* array) { _colorData.indices = array; computeFastPathsUsed(); dirtyDisplayList(); }
|
|
IndexArray* getColorIndices() { return _colorData.indices.get(); }
|
|
const IndexArray* getColorIndices() const { return _colorData.indices.get(); }
|
|
|
|
void setColorData(const ArrayData& arrayData) { _colorData = arrayData; }
|
|
ArrayData& getColorData() { return _colorData; }
|
|
const ArrayData& getColorData() const { return _colorData; }
|
|
|
|
|
|
void setSecondaryColorBinding(AttributeBinding ab) { _secondaryColorData.binding = ab; computeFastPathsUsed();}
|
|
AttributeBinding getSecondaryColorBinding() const { return _secondaryColorData.binding; }
|
|
|
|
void setSecondaryColorArray(Array* array) { _secondaryColorData.array = array; if (!_secondaryColorData.array.valid()) _secondaryColorData.binding=BIND_OFF; computeFastPathsUsed(); dirtyDisplayList(); }
|
|
Array* getSecondaryColorArray() { return _secondaryColorData.array.get(); }
|
|
const Array* getSecondaryColorArray() const { return _secondaryColorData.array.get(); }
|
|
|
|
void setSecondaryColorIndices(IndexArray* array) { _secondaryColorData.indices = array; computeFastPathsUsed(); dirtyDisplayList(); }
|
|
IndexArray* getSecondaryColorIndices() { return _secondaryColorData.indices.get(); }
|
|
const IndexArray* getSecondaryColorIndices() const { return _secondaryColorData.indices.get(); }
|
|
|
|
void setSecondaryColorData(const ArrayData& arrayData) { _secondaryColorData = arrayData; }
|
|
ArrayData& getSecondaryColorData() { return _secondaryColorData; }
|
|
const ArrayData& getSecondaryColorData() const { return _secondaryColorData; }
|
|
|
|
|
|
void setFogCoordBinding(AttributeBinding ab) { _fogCoordData.binding = ab; computeFastPathsUsed();}
|
|
AttributeBinding getFogCoordBinding() const { return _fogCoordData.binding; }
|
|
|
|
void setFogCoordArray(Array* array) { _fogCoordData.array = array; if (!_fogCoordData.array.valid()) _fogCoordData.binding=BIND_OFF; dirtyDisplayList(); }
|
|
Array* getFogCoordArray() { return _fogCoordData.array.get(); }
|
|
const Array* getFogCoordArray() const { return _fogCoordData.array.get(); }
|
|
|
|
void setFogCoordIndices(IndexArray* array) { _fogCoordData.indices = array; dirtyDisplayList(); }
|
|
IndexArray* getFogCoordIndices() { return _fogCoordData.indices.get(); }
|
|
const IndexArray* getFogCoordIndices() const { return _fogCoordData.indices.get(); }
|
|
|
|
void setFogCoordData(const ArrayData& arrayData) { _fogCoordData = arrayData; }
|
|
ArrayData& getFogCoordData() { return _fogCoordData; }
|
|
const ArrayData& getFogCoordData() const { return _fogCoordData; }
|
|
|
|
|
|
|
|
void setTexCoordArray(unsigned int unit,Array*);
|
|
Array* getTexCoordArray(unsigned int unit);
|
|
const Array* getTexCoordArray(unsigned int unit) const;
|
|
|
|
void setTexCoordIndices(unsigned int unit,IndexArray*);
|
|
IndexArray* getTexCoordIndices(unsigned int unit);
|
|
const IndexArray* getTexCoordIndices(unsigned int unit) const;
|
|
|
|
void setTexCoordData(unsigned int index,const ArrayData& arrayData);
|
|
ArrayData& getTexCoordData(unsigned int index);
|
|
const ArrayData& getTexCoordData(unsigned int index) const;
|
|
|
|
unsigned int getNumTexCoordArrays() const { return _texCoordList.size(); }
|
|
ArrayList& getTexCoordArrayList() { return _texCoordList; }
|
|
const ArrayList& getTexCoordArrayList() const { return _texCoordList; }
|
|
|
|
|
|
|
|
void setVertexAttribArray(unsigned int index,Array* array);
|
|
Array *getVertexAttribArray(unsigned int index);
|
|
const Array *getVertexAttribArray(unsigned int index) const;
|
|
|
|
void setVertexAttribIndices(unsigned int index,IndexArray* array);
|
|
IndexArray* getVertexAttribIndices(unsigned int index);
|
|
const IndexArray* getVertexAttribIndices(unsigned int index) const;
|
|
|
|
void setVertexAttribBinding(unsigned int index,AttributeBinding ab);
|
|
AttributeBinding getVertexAttribBinding(unsigned int index) const;
|
|
|
|
void setVertexAttribNormalize(unsigned int index,GLboolean norm);
|
|
GLboolean getVertexAttribNormalize(unsigned int index) const;
|
|
|
|
void setVertexAttribData(unsigned int index,const ArrayData& arrayData);
|
|
ArrayData& getVertexAttribData(unsigned int index);
|
|
const ArrayData& getVertexAttribData(unsigned int index) const;
|
|
|
|
unsigned int getNumVertexAttribArrays() const { return _vertexAttribList.size(); }
|
|
ArrayList& getVertexAttribArrayList() { return _vertexAttribList; }
|
|
const ArrayList& getVertexAttribArrayList() const { return _vertexAttribList; }
|
|
|
|
|
|
|
|
typedef std::vector< ref_ptr<PrimitiveSet> > PrimitiveSetList;
|
|
|
|
void setPrimitiveSetList(const PrimitiveSetList& primitives) { _primitives = primitives; dirtyDisplayList(); dirtyBound(); }
|
|
PrimitiveSetList& getPrimitiveSetList() { return _primitives; }
|
|
const PrimitiveSetList& getPrimitiveSetList() const { return _primitives; }
|
|
|
|
unsigned int getNumPrimitiveSets() const { return _primitives.size(); }
|
|
PrimitiveSet* getPrimitiveSet(unsigned int pos) { return _primitives[pos].get(); }
|
|
const PrimitiveSet* getPrimitiveSet(unsigned int pos) const { return _primitives[pos].get(); }
|
|
|
|
/** Add a primitive set to the geometry.*/
|
|
bool addPrimitiveSet(PrimitiveSet* primitiveset);
|
|
|
|
/** Set a primitive set to the specified position in geometry's primitive set list.*/
|
|
bool setPrimitiveSet(unsigned int i,PrimitiveSet* primitiveset);
|
|
|
|
/** Insert a primitive set to the specified position in geometry's primitive set list.*/
|
|
bool insertPrimitiveSet(unsigned int i,PrimitiveSet* primitiveset);
|
|
|
|
/** Remove primitive set(s) from the specified position in geometry's primitive set list.*/
|
|
bool removePrimitiveSet(unsigned int i,unsigned int numElementsToRemove=1);
|
|
|
|
/** Get the index number of a primitive set, return a value between
|
|
* 0 and getNumPrimitiveSet()-1 if found, if not found then return getNumPrimitiveSet().
|
|
* When checking for a valid find value use if ((value=geoemtry->getPrimitiveSetIndex(primitive))!=geometry.getNumPrimitiveSet()) as*/
|
|
unsigned int getPrimitiveSetIndex(const PrimitiveSet* primitiveset) const;
|
|
|
|
|
|
/** Set whether fast paths should be used when supported.*/
|
|
void setFastPathHint(bool on) { _fastPathHint = on; }
|
|
|
|
/** Get whether fast paths should be used when supported.*/
|
|
bool getFastPathHint() const { return _fastPathHint; }
|
|
|
|
/** return true if OpenGL fast paths will be used with drawing this Geometry.
|
|
* Fast paths use vertex arrays, and glDrawArrays/glDrawElements. Slow paths
|
|
* use glBegin()/glVertex.../glEnd(). Use of per primitive bindings or per vertex indexed
|
|
* arrays will drop the rendering path off the fast path.*/
|
|
inline bool areFastPathsUsed() const { return _fastPath && _fastPathHint; }
|
|
|
|
bool computeFastPathsUsed();
|
|
|
|
bool verifyBindings() const;
|
|
|
|
void computeCorrectBindingsAndArraySizes();
|
|
|
|
|
|
bool suitableForOptimization() const;
|
|
|
|
void copyToAndOptimize(Geometry& target);
|
|
|
|
void computeInternalOptimizedGeometry();
|
|
|
|
void removeInternalOptimizedGeometry() { _internalOptimizedGeometry = 0; }
|
|
|
|
void setInternalOptimizedGeometry(osg::Geometry* geometry) { _internalOptimizedGeometry = geometry; }
|
|
|
|
osg::Geometry* getInternalOptimizedGeometry() { return _internalOptimizedGeometry.get(); }
|
|
|
|
const osg::Geometry* getInternalOptimizedGeometry() const { return _internalOptimizedGeometry.get(); }
|
|
|
|
|
|
/** draw Geometry directly ignoring an OpenGL display list which could be attached.
|
|
* This is the internal draw method which does the drawing itself,
|
|
* and is the method to override when deriving from Geometry for user-drawn objects.
|
|
*/
|
|
virtual void drawImplementation(State& state) const;
|
|
|
|
/** return true, osg::Geometry does support accept(AttributeFunctor&).*/
|
|
virtual bool supports(AttributeFunctor&) const { return true; }
|
|
|
|
/** accept an AttributeFunctor and call its methods to tell it about the interal attributes that this Drawable has.*/
|
|
virtual void accept(AttributeFunctor& af);
|
|
|
|
/** return true, osg::Geometry does support accept(ConstAttributeFunctor&).*/
|
|
virtual bool supports(ConstAttributeFunctor&) const { return true; }
|
|
|
|
/** accept an ConstAttributeFunctor and call its methods to tell it about the interal attributes that this Drawable has.*/
|
|
virtual void accept(ConstAttributeFunctor& af) const;
|
|
|
|
/** return true, osg::Geometry does support accept(PrimitiveFunctor&) .*/
|
|
virtual bool supports(PrimitiveFunctor&) const { return true; }
|
|
|
|
/** accept a PrimitiveFunctor and call its methods to tell it about the interal primitives that this Drawable has.*/
|
|
virtual void accept(PrimitiveFunctor& pf) const;
|
|
|
|
/** return true, osg::Geometry does support accept(PrimitiveIndexFunctor&) .*/
|
|
virtual bool supports(PrimitiveIndexFunctor&) const { return true; }
|
|
|
|
/** accept a PrimitiveFunctor and call its methods to tell it about the interal primitives that this Drawable has.*/
|
|
virtual void accept(PrimitiveIndexFunctor& pf) const;
|
|
|
|
|
|
protected:
|
|
|
|
Geometry& operator = (const Geometry&) { return *this;}
|
|
|
|
virtual ~Geometry();
|
|
|
|
bool verifyBindings(const ArrayData& arrayData) const;
|
|
bool verifyBindings(const Vec3ArrayData& arrayData) const;
|
|
|
|
void computeCorrectBindingsAndArraySizes(ArrayData& arrayData,const char* arrayName);
|
|
void computeCorrectBindingsAndArraySizes(Vec3ArrayData& arrayData,const char* arrayName);
|
|
|
|
|
|
PrimitiveSetList _primitives;
|
|
ArrayData _vertexData;
|
|
Vec3ArrayData _normalData;
|
|
ArrayData _colorData;
|
|
ArrayData _secondaryColorData;
|
|
ArrayData _fogCoordData;
|
|
ArrayList _texCoordList;
|
|
ArrayList _vertexAttribList;
|
|
|
|
mutable bool _fastPath;
|
|
bool _fastPathHint;
|
|
|
|
ref_ptr<Geometry> _internalOptimizedGeometry;
|
|
};
|
|
|
|
/** Convenience function to be used for creating quad geometry with texture coords.
|
|
* Tex coords go from bottom left (0,0) to top right (1,1).*/
|
|
extern SG_EXPORT Geometry* createTexturedQuadGeometry(const Vec3& corner,const Vec3& widthVec,const Vec3& heightVec, float s=1.0f, float t=1.0f);
|
|
|
|
|
|
}
|
|
|
|
#endif
|