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Rewrote the osg::Drawable::AttributeFunctor and PrimtiveFunctor to make

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them more consistent with each other. This does mean an API change, so
dependanct code in the OSG has been updated accordingly.
This commit is contained in:
Robert Osfield 2002-07-18 15:36:14 +00:00
parent 1d9dd54d11
commit ff8b4c001d
16 changed files with 146 additions and 158 deletions
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60
include/osg/Drawable
View File

@ -8,7 +8,6 @@
#include <osg/BoundingBox>
#include <osg/State>
#include <osg/Types>
#include <osg/Vec2>
#include <osg/NodeVisitor>
#include <vector>
@ -20,6 +19,7 @@ namespace osg {
class Vec2;
class Vec3;
class Vec4;
class UByte4;
class Node;
// this is define to alter the way display lists are compiled inside the
@ -218,50 +218,54 @@ class SG_EXPORT Drawable : public Object
* in the OpenGL context related to contextID.*/
static void flushDeletedDisplayLists(uint contextID);
typedef uint AttributeBitMask;
enum AttributeBitMaskValues
enum AttributeType
{
COORDS = 0x1,
NORMALS = 0x2,
COLORS = 0x4,
TEXTURE_COORDS = 0x8,
VERTICES,
NORMALS,
COLORS,
TEXTURE_COORDS,
TEXTURE_COORDS_0 = TEXTURE_COORDS,
TEXTURE_COORDS_1 = 0x10,
TEXTURE_COORDS_2 = 0x20,
TEXTURE_COORDS_3 = 0x40
TEXTURE_COORDS_1 = TEXTURE_COORDS_0+1,
TEXTURE_COORDS_2 = TEXTURE_COORDS_0+2,
TEXTURE_COORDS_3 = TEXTURE_COORDS_0+3,
TEXTURE_COORDS_4 = TEXTURE_COORDS_0+4,
TEXTURE_COORDS_5 = TEXTURE_COORDS_0+5,
TEXTURE_COORDS_6 = TEXTURE_COORDS_0+6,
TEXTURE_COORDS_7 = TEXTURE_COORDS_0+7
// only eight texture coord examples provided here, but underlying code can handle any no of texure units,
// simply co them as (TEXTURE_COORDS_0+unit).
};
class AttributeFunctor
{
public:
AttributeFunctor(AttributeBitMask abm):_abm(abm) {}
virtual ~AttributeFunctor() {}
void setAttributeBitMask(AttributeBitMask abm) { _abm=abm; }
AttributeBitMask getAttributeBitMask() const { return _abm; }
virtual void apply(AttributeType,unsigned int,GLbyte*) {}
virtual void apply(AttributeType,unsigned int,GLshort*) {}
virtual void apply(AttributeType,unsigned int,GLint*) {}
virtual bool apply(AttributeBitMask,Vec2*,Vec2*) { return false; }
virtual bool apply(AttributeBitMask,Vec3*,Vec3*) { return false; }
virtual bool apply(AttributeBitMask,Vec4*,Vec4*) { return false; }
virtual void apply(AttributeType,unsigned int,GLubyte*) {}
virtual void apply(AttributeType,unsigned int,GLushort*) {}
virtual void apply(AttributeType,unsigned int,GLuint*) {}
protected:
AttributeBitMask _abm;
virtual void apply(AttributeType,unsigned int,float*) {}
virtual void apply(AttributeType,unsigned int,Vec2*) {}
virtual void apply(AttributeType,unsigned int,Vec3*) {}
virtual void apply(AttributeType,unsigned int,Vec4*) {}
virtual void apply(AttributeType,unsigned int,UByte4*) {}
};
/** return the attributes supported by applyAttrbuteOperation() as an AttributeBitMask.*/
virtual AttributeBitMask suppportsAttributeOperation() const { return (AttributeBitMask)0; }
/** return the attributes successully applied in applyAttributeUpdate.*/
virtual AttributeBitMask applyAttributeOperation(AttributeFunctor&) { return 0; }
/** accept an AttributeFunctor and call its methods to tell it about the interal attributes that this Drawable has.*/
virtual void accept(AttributeFunctor&) {}
class PrimitiveFunctor
{
public:
virtual ~PrimitiveFunctor() {}
virtual void setVertexArray(unsigned int count,Vec3* vertices) = 0;
virtual void drawArrays(GLenum mode,GLint first,GLsizei count) = 0;
@ -276,8 +280,8 @@ class SG_EXPORT Drawable : public Object
};
/** apply the internal geometry as basic primitives to a PrimitiveFunctor.*/
virtual void applyPrimitiveOperation(PrimitiveFunctor&) {}
/** accept a PrimtiveFunctor and call its methods to tell it about the interal primtives that this Drawable has.*/
virtual void accept(PrimitiveFunctor&) {}
protected:

11
include/osg/GeoSet
View File

@ -329,14 +329,11 @@ class SG_EXPORT GeoSet : public Drawable
/** get the current AttributeDeleteFunction to handle attribute arrays attached to this Geoset.*/
const AttributeDeleteFunctor* getAttributeDeleteFunctor() const { return _adf.get(); }
/** return the attributes supported by applyAttrbuteUpdate() as an AttributeBitMask.*/
virtual AttributeBitMask suppportsAttributeOperation() const;
/** accept an AttributeFunctor and call its methods to tell it about the interal attributes that this Drawable has.*/
virtual void accept(AttributeFunctor& af);
/** return the attributes successully applied in applyAttributeUpdate.*/
virtual AttributeBitMask applyAttributeOperation(AttributeFunctor& auf);
/** apply the internal geometry as basic primitives to a PrimitiveFunctor.*/
virtual void applyPrimitiveOperation(PrimitiveFunctor& functor);
/** accept a PrimtiveFunctor and call its methods to tell it about the interal primtives that this Drawable has.*/
virtual void accept(PrimitiveFunctor& pf);
/** convinience function for converting GeoSet's to equivilant Geometry nodes.*/
Geometry* convertToGeometry();

11
include/osg/Geometry
View File

@ -91,14 +91,11 @@ class SG_EXPORT Geometry : public Drawable
*/
virtual void drawImmediateMode(State& state);
/** accept an AttributeFunctor and call its methods to tell it about the interal attributes that this Drawable has.*/
virtual void accept(AttributeFunctor& af);
/** return the attributes supported by applyAttrbuteUpdate() as an AttributeBitMask.*/
virtual AttributeBitMask suppportsAttributeOperation() const;
/** return the attributes successully applied in applyAttributeUpdate.*/
virtual AttributeBitMask applyAttributeOperation(AttributeFunctor& auf);
virtual void applyPrimitiveOperation(PrimitiveFunctor&);
/** accept a PrimtiveFunctor and call its methods to tell it about the interal primtives that this Drawable has.*/
virtual void accept(PrimitiveFunctor& pf);
protected:

6
include/osg/ImpostorSprite
View File

@ -116,6 +116,12 @@ class SG_EXPORT ImpostorSprite : public Drawable
/** draw ImpostorSprite directly. */
virtual void drawImmediateMode(State& state);
/** accept an AttributeFunctor and call its methods to tell it about the interal attributes that this Drawable has.*/
virtual void accept(AttributeFunctor& af);
/** accept a PrimtiveFunctor and call its methods to tell it about the interal primtives that this Drawable has.*/
virtual void accept(PrimitiveFunctor& pf);
protected:
ImpostorSprite(const ImpostorSprite&):Drawable() {}

12
include/osg/Primitive
View File

@ -123,7 +123,7 @@ class Primitive : public Object
virtual void draw() const = 0;
virtual void applyPrimitiveOperation(Drawable::PrimitiveFunctor&) {}
virtual void accept(Drawable::PrimitiveFunctor&) {}
virtual void offsetIndices(int offset) = 0;
@ -174,7 +174,7 @@ class SG_EXPORT DrawArrays : public Primitive
virtual void draw() const;
virtual void applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor);
virtual void accept(Drawable::PrimitiveFunctor& functor);
virtual void offsetIndices(int offset) { _first += offset; }
@ -225,7 +225,7 @@ class SG_EXPORT DrawArrayLengths : public Primitive, public VectorSizei
virtual void draw() const;
virtual void applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor);
virtual void accept(Drawable::PrimitiveFunctor& functor);
virtual void offsetIndices(int offset) { _first += offset; }
@ -266,7 +266,7 @@ class SG_EXPORT DrawElementsUByte : public Primitive, public VectorUByte
virtual void draw() const ;
virtual void applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor);
virtual void accept(Drawable::PrimitiveFunctor& functor);
virtual void offsetIndices(int offset);
};
@ -304,7 +304,7 @@ class SG_EXPORT DrawElementsUShort : public Primitive, public VectorUShort
virtual void draw() const;
virtual void applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor);
virtual void accept(Drawable::PrimitiveFunctor& functor);
virtual void offsetIndices(int offset);
};
@ -341,7 +341,7 @@ class SG_EXPORT DrawElementsUInt : public Primitive, public VectorUInt
virtual void draw() const;
virtual void applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor);
virtual void accept(Drawable::PrimitiveFunctor& functor);
virtual void offsetIndices(int offset);
};

2
src/Demos/osggeometry/osggeometry.cpp
View File

@ -52,7 +52,7 @@ void printTriangles(const std::string& name, osg::Drawable& drawable)
std::cout<<name<<std::endl;
osg::TriangleFunctor<NormalPrint> tf;
drawable.applyPrimitiveOperation(tf);
drawable.accept(tf);
std::cout<<std::endl;
}

11
src/Demos/osgprerender/osgprerender.cpp
View File

@ -210,7 +210,6 @@ class MyGeometryCallback :
MyGeometryCallback(const osg::Vec3& o,
const osg::Vec3& x,const osg::Vec3& y,const osg::Vec3& z,
double period,double xphase,double amplitude):
osg::Drawable::AttributeFunctor(osg::Drawable::COORDS),
_firstCall(true),
_startTime(0.0),
_time(0.0),
@ -234,7 +233,7 @@ class MyGeometryCallback :
_time = referenceTime-_startTime;
drawable->applyAttributeOperation(*this);
drawable->accept(*this);
drawable->dirtyBound();
osg::Geometry* geometry = dynamic_cast<osg::Geometry*>(drawable);
@ -245,13 +244,14 @@ class MyGeometryCallback :
}
virtual bool apply(osg::Drawable::AttributeBitMask abm,osg::Vec3* begin,osg::Vec3* end)
virtual void apply(osg::Drawable::AttributeType type,unsigned int count,osg::Vec3* begin)
{
if (abm == osg::Drawable::COORDS)
if (type == osg::Drawable::VERTICES)
{
const float TwoPI=2.0f*osg::PI;
const float phase = -_time/_period;
osg::Vec3* end = begin+count;
for (osg::Vec3* itr=begin;itr<end;++itr)
{
osg::Vec3 dv(*itr-_origin);
@ -265,10 +265,7 @@ class MyGeometryCallback :
_yAxis*local.y()+
_zAxis*local.z();
}
return true;
}
return false;
}
bool _firstCall;

32
src/osg/GeoSet.cpp
View File

@ -850,44 +850,33 @@ void GeoSet::setInterleavedArray( const InterleaveArrayType format, float *ia, I
set_fast_path();
}
Drawable::AttributeBitMask GeoSet::suppportsAttributeOperation() const
{
// we do support coords,normals,texcoords and colors so return true.
return COORDS | NORMALS | COLORS | TEXTURE_COORDS;
}
Drawable::AttributeBitMask GeoSet::applyAttributeOperation(AttributeFunctor& auf)
void GeoSet::accept(AttributeFunctor& auf)
{
if (_numcoords == 0) computeNumVerts();
AttributeBitMask amb = auf.getAttributeBitMask();
AttributeBitMask ramb = 0;
if ((amb & COORDS) && _coords && _numcoords)
if (_coords && _numcoords)
{
if (auf.apply(COORDS,_coords,_coords+_numcoords)) ramb = COORDS;
auf.apply(VERTICES,_numcoords,_coords);
}
if ((amb & NORMALS) && _normals && _numnormals)
if (_normals && _numnormals)
{
if (auf.apply(NORMALS,_normals,_normals+_numnormals)) ramb = NORMALS;
auf.apply(NORMALS,_numnormals,_normals);
}
if ((amb & COLORS) && _colors && _numcolors)
if (_colors && _numcolors)
{
if (auf.apply(COLORS,_colors,_colors+_numcolors)) ramb = COLORS;
auf.apply(COLORS,_numcolors,_colors);
}
if ((amb & TEXTURE_COORDS) && _tcoords && _numtcoords)
if (_tcoords && _numtcoords)
{
if (auf.apply(TEXTURE_COORDS,_tcoords,_tcoords+_numtcoords)) ramb = TEXTURE_COORDS;
auf.apply(TEXTURE_COORDS_0,_numtcoords,_tcoords);
}
return ramb;
}
void GeoSet::applyPrimitiveOperation(PrimitiveFunctor& functor)
void GeoSet::accept(PrimitiveFunctor& functor)
{
// will easily convert into a Geometry.
@ -934,7 +923,6 @@ void GeoSet::applyPrimitiveOperation(PrimitiveFunctor& functor)
functor.drawArrays( (GLenum)_oglprimtype, 0, _numcoords );
}
}
Geometry* GeoSet::convertToGeometry()

31
src/osg/Geometry.cpp
View File

@ -192,35 +192,22 @@ void Geometry::drawImmediateMode(State& state)
}
Drawable::AttributeBitMask Geometry::suppportsAttributeOperation() const
void Geometry::accept(AttributeFunctor& af)
{
// we do support coords,normals,texcoords and colors so return true.
return COORDS | NORMALS | COLORS | TEXTURE_COORDS;
}
/** return the attributes successully applied in applyAttributeUpdate.*/
Drawable::AttributeBitMask Geometry::applyAttributeOperation(AttributeFunctor& auf)
{
AttributeBitMask amb = auf.getAttributeBitMask();
AttributeBitMask ramb = 0;
if ((amb & COORDS) && _vertexArray.valid() && !_vertexArray->empty())
if (_vertexArray.valid() && !_vertexArray->empty())
{
if (auf.apply(COORDS,&(*(_vertexArray->begin())),&(*(_vertexArray->end())))) ramb = COORDS;
af.apply(VERTICES,_vertexArray->size(),&(_vertexArray->front()));
}
if ((amb & NORMALS) && _normalArray.valid() && !_normalArray->empty())
if (_normalArray.valid() && !_normalArray->empty())
{
if (auf.apply(NORMALS,&(*(_normalArray->begin())),&(*(_normalArray->end())))) ramb = NORMALS;
af.apply(NORMALS,_normalArray->size(),&(_normalArray->front()));
}
// colors and texture coords to implement...
return ramb;
// need to add other attriubtes
}
void Geometry::applyPrimitiveOperation(PrimitiveFunctor& functor)
void Geometry::accept(PrimitiveFunctor& functor)
{
if (!_vertexArray.valid() || _vertexArray->empty()) return;
@ -230,7 +217,7 @@ void Geometry::applyPrimitiveOperation(PrimitiveFunctor& functor)
itr!=_primitives.end();
++itr)
{
(*itr)->applyPrimitiveOperation(functor);
(*itr)->accept(functor);
}
}

15
src/osg/ImpostorSprite.cpp
View File

@ -115,6 +115,20 @@ void ImpostorSprite::setTexture(Texture* tex,int s,int t)
}
void ImpostorSprite::accept(AttributeFunctor& af)
{
af.apply(VERTICES,4,_coords);
af.apply(TEXTURE_COORDS_0,4,_texcoords);
}
void ImpostorSprite::accept(PrimitiveFunctor& functor)
{
functor.setVertexArray(4,_coords);
functor.drawArrays( GL_QUADS, 0, 4);
}
///////////////////////////////////////////////////////////////////////////
// Helper class for managing the reuse of ImpostorSprite resources.
///////////////////////////////////////////////////////////////////////////
@ -267,3 +281,4 @@ ImpostorSprite* ImpostorSpriteManager::createOrReuseImpostorSprite(int s,int t,i
return is;
}

10
src/osg/Primitive.cpp
View File

@ -7,7 +7,7 @@ void DrawArrays::draw() const
glDrawArrays(_mode,_first,_count);
}
void DrawArrays::applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor)
void DrawArrays::accept(Drawable::PrimitiveFunctor& functor)
{
functor.drawArrays(_mode,_first,_count);
}
@ -24,7 +24,7 @@ void DrawArrayLengths::draw() const
}
}
void DrawArrayLengths::applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor)
void DrawArrayLengths::accept(Drawable::PrimitiveFunctor& functor)
{
GLint first = _first;
for(VectorSizei::iterator itr=begin();
@ -43,7 +43,7 @@ void DrawElementsUByte::draw() const
glDrawElements(_mode,size(),GL_UNSIGNED_BYTE,&front());
}
void DrawElementsUByte::applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor)
void DrawElementsUByte::accept(Drawable::PrimitiveFunctor& functor)
{
if (!empty()) functor.drawElements(_mode,size(),&front());
}
@ -64,7 +64,7 @@ void DrawElementsUShort::draw() const
glDrawElements(_mode,size(),GL_UNSIGNED_SHORT,&front());
}
void DrawElementsUShort::applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor)
void DrawElementsUShort::accept(Drawable::PrimitiveFunctor& functor)
{
if (!empty()) functor.drawElements(_mode,size(),&front());
}
@ -85,7 +85,7 @@ void DrawElementsUInt::draw() const
glDrawElements(_mode,size(),GL_UNSIGNED_INT,&front());
}
void DrawElementsUInt::applyPrimitiveOperation(Drawable::PrimitiveFunctor& functor)
void DrawElementsUInt::accept(Drawable::PrimitiveFunctor& functor)
{
if (!empty()) functor.drawElements(_mode,size(),&front());
}

2
src/osgUtil/IntersectVisitor.cpp
View File

@ -449,7 +449,7 @@ bool IntersectVisitor::intersect(Drawable& drawable)
TriangleFunctor<TriangleIntersect> ti;
ti.set(*sitr->second);
drawable.applyPrimitiveOperation(ti);
drawable.accept(ti);
if (ti._hit)
{

23
src/osgUtil/Optimizer.cpp
View File

@ -99,8 +99,7 @@ class TransformFunctor : public osg::Drawable::AttributeFunctor
osg::Matrix _m;
osg::Matrix _im;
TransformFunctor(const osg::Matrix& m):
osg::Drawable::AttributeFunctor(osg::Drawable::COORDS|osg::Drawable::NORMALS)
TransformFunctor(const osg::Matrix& m)
{
_m = m;
_im.invert(_m);
@ -108,28 +107,26 @@ class TransformFunctor : public osg::Drawable::AttributeFunctor
virtual ~TransformFunctor() {}
virtual bool apply(osg::Drawable::AttributeBitMask abm,osg::Vec3* begin,osg::Vec3* end)
virtual void apply(osg::Drawable::AttributeType type,unsigned int count,osg::Vec3* begin)
{
if (abm == osg::Drawable::COORDS)
if (type == osg::Drawable::VERTICES)
{
osg::Vec3* end = begin+count;
for (osg::Vec3* itr=begin;itr<end;++itr)
{
(*itr) = (*itr)*_m;
}
return true;
}
else if (abm == osg::Drawable::NORMALS)
else if (type == osg::Drawable::NORMALS)
{
osg::Vec3* end = begin+count;
for (osg::Vec3* itr=begin;itr<end;++itr)
{
// note post mult by inverse for normals.
(*itr) = osg::Matrix::transform3x3(_im,(*itr));
(*itr).normalize();
}
return true;
}
return false;
}
};
@ -455,7 +452,7 @@ void Optimizer::FlattenStaticTransformsVisitor::doTransform(osg::Object* obj,osg
if (drawable)
{
TransformFunctor tf(matrix);
drawable->applyAttributeOperation(tf);
drawable->accept(tf);
drawable->dirtyBound();
return;
}
@ -498,7 +495,7 @@ void Optimizer::FlattenStaticTransformsVisitor::doTransform(osg::Object* obj,osg
for(unsigned int i=0;i<billboard->getNumDrawables();++i)
{
billboard->setPos(i,billboard->getPos(i)*matrix);
billboard->getDrawable(i)->applyAttributeOperation(tf);
billboard->getDrawable(i)->accept(tf);
}
billboard->dirtyBound();
@ -717,7 +714,7 @@ void Optimizer::RemoveLowestStaticTransformsVisitor::doTransform(osg::Object* ob
if (drawable)
{
TransformFunctor tf(matrix);
drawable->applyAttributeOperation(tf);
drawable->accept(tf);
drawable->dirtyBound();
return;
}
@ -760,7 +757,7 @@ void Optimizer::RemoveLowestStaticTransformsVisitor::doTransform(osg::Object* ob
for(unsigned int i=0;i<billboard->getNumDrawables();++i)
{
billboard->setPos(i,billboard->getPos(i)*matrix);
billboard->getDrawable(i)->applyAttributeOperation(tf);
billboard->getDrawable(i)->accept(tf);
}
billboard->dirtyBound();

2
src/osgUtil/RenderBin.cpp
View File

@ -191,7 +191,7 @@ bool RenderBin::getStats(osg::Statistics* primStats)
if (dw)
{
// then tot up the primtive types and no vertices.
dw->applyPrimitiveOperation(*primStats); // use sub-class to find the stats for each drawable
dw->accept(*primStats); // use sub-class to find the stats for each drawable
}
}
somestats=true;

2
src/osgUtil/SmoothingVisitor.cpp
View File

@ -111,7 +111,7 @@ void SmoothingVisitor::smooth(osg::Geometry& geom)
TriangleFunctor<SmoothTriangleFunctor> stf;
stf.set(&(coords->front()),coords->size(),&(normals->front()));
geom.applyPrimitiveOperation(stf);
geom.accept(stf);
for(nitr= normals->begin();
nitr!=normals->end();

2
src/osgUtil/TriStripVisitor.cpp
View File

@ -82,7 +82,7 @@ void TriStripVisitor::stripify(Geometry& geom)
case(Primitive::QUADS):
case(Primitive::QUAD_STRIP):
case(Primitive::POLYGON):
(*itr)->applyPrimitiveOperation(taf);
(*itr)->accept(taf);
break;
default:
new_primitives.push_back(*itr);