PtexSeparableFilter Class Reference

#include <PtexSeparableFilter.h>

Inheritance diagram for PtexSeparableFilter:

Public Member Functions
virtual void	release ()
	Release resources held by this pointer (pointer becomes invalid). More...
virtual void	eval (float *result, int firstchan, int nchannels, int faceid, float u, float v, float uw1, float vw1, float uw2, float vw2, float width, float blur)
	Apply filter to a ptex data file. More...

Protected Member Functions
	PtexSeparableFilter (PtexTexture *tx, const PtexFilter::Options &opts)
virtual	~PtexSeparableFilter ()
virtual void	buildKernel (PtexSeparableKernel &k, float u, float v, float uw, float vw, Res faceRes)=0
void	splitAndApply (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f)
void	applyAcrossEdge (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f, int eid)
void	applyToCorner (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f, int eid)
void	applyToCornerFace (PtexSeparableKernel &k, const Ptex::FaceInfo &f, int eid, int cfaceid, const Ptex::FaceInfo &cf, int ceid)
void	apply (PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f)
Protected Member Functions inherited from PtexFilter
virtual	~PtexFilter ()
	Destructor not for public use. Use release() instead. More...

Protected Attributes
PtexTexture *	_tx
Options	_options
float *	_result
float	_weight
int	_firstChanOffset
int	_nchan
int	_ntxchan
DataType	_dt
BorderMode	_uMode
BorderMode	_vMode
EdgeFilterMode	_efm

Additional Inherited Members
Public Types inherited from PtexFilter
enum	FilterType {   f_point, f_bilinear, f_box, f_gaussian,   f_bicubic, f_bspline, f_catmullrom, f_mitchell }
	Filter types. More...
Static Public Member Functions inherited from PtexFilter
static PtexFilter *	getFilter (PtexTexture *tx, const Options &opts)

Detailed Description

Definition at line 45 of file PtexSeparableFilter.h.

Constructor & Destructor Documentation

PtexSeparableFilter()

PtexSeparableFilter::PtexSeparableFilter ( PtexTexture *  tx, const PtexFilter::Options &  opts  )

inlineprotected

Definition at line 55 of file PtexSeparableFilter.h.

References PtexFilter::Options::__structSize, _options, and PtexFilter::Options::noedgeblend.

~PtexSeparableFilter()

virtual PtexSeparableFilter::~PtexSeparableFilter ( )

inlineprotectedvirtual

Definition at line 66 of file PtexSeparableFilter.h.

Member Function Documentation

apply()

void PtexSeparableFilter::apply ( PtexSeparableKernel &  k, int  faceid, const Ptex::FaceInfo &  f  )

protected

Definition at line 348 of file PtexSeparableFilter.cpp.

References _dt, _efm, _firstChanOffset, _nchan, _ntxchan, _result, _tx, PtexSeparableKernel::apply(), PtexSeparableKernel::applyConst(), PtexSeparableKernel::downresU(), PtexSeparableKernel::downresV(), Ptex::efm_tanvec, PtexFaceData::getData(), PtexTexture::getData(), PtexFaceData::getTile(), PtexFaceData::isConstant(), PtexFaceData::isTiled(), PtexSeparableKernel::ku, PtexSeparableKernel::kv, PtexUtils::min(), PtexSeparableKernel::res, Ptex::FaceInfo::res, PtexSeparableKernel::rot, PtexFaceData::tileRes(), PtexSeparableKernel::u, Ptex::Res::u(), PtexSeparableKernel::uw, PtexSeparableKernel::v, Ptex::Res::v(), and PtexSeparableKernel::vw.

Referenced by applyAcrossEdge(), applyToCornerFace(), and splitAndApply().

applyAcrossEdge()

void PtexSeparableFilter::applyAcrossEdge ( PtexSeparableKernel &  k, int  faceid, const Ptex::FaceInfo &  f, int  eid  )

protected

Definition at line 215 of file PtexSeparableFilter.cpp.

References _tx, Ptex::FaceInfo::adjedge(), Ptex::FaceInfo::adjface(), PtexSeparableKernel::adjustMainToSubface(), PtexSeparableKernel::adjustSubfaceToMain(), apply(), PtexTexture::getFaceInfo(), Ptex::FaceInfo::isSubface(), PtexSeparableKernel::rotate(), and splitAndApply().

Referenced by splitAndApply().

applyToCorner()

void PtexSeparableFilter::applyToCorner ( PtexSeparableKernel &  k, int  faceid, const Ptex::FaceInfo &  f, int  eid  )

protected

Definition at line 257 of file PtexSeparableFilter.cpp.

References _tx, _weight, PtexSeparableKernel::adjustSubfaceToMain(), applyToCornerFace(), PtexTexture::getFaceInfo(), Ptex::FaceInfo::isSubface(), PtexSeparableKernel::makeSymmetric(), PtexSeparableKernel::rotate(), splitAndApply(), and PtexSeparableKernel::weight().

Referenced by splitAndApply().

applyToCornerFace()

void PtexSeparableFilter::applyToCornerFace ( PtexSeparableKernel &  k, const Ptex::FaceInfo &  f, int  eid, int  cfaceid, const Ptex::FaceInfo &  cf, int  ceid  )

protected

Definition at line 331 of file PtexSeparableFilter.cpp.

References PtexSeparableKernel::adjustMainToSubface(), PtexSeparableKernel::adjustSubfaceToMain(), apply(), Ptex::FaceInfo::isSubface(), PtexSeparableKernel::rotate(), and splitAndApply().

Referenced by applyToCorner().

buildKernel()

virtual void PtexSeparableFilter::buildKernel ( PtexSeparableKernel &  k, float  u, float  v, float  uw, float  vw, Res  faceRes  )

protectedpure virtual

Implemented in PtexBilinearFilter, PtexBoxFilter, and PtexWidth4Filter.

Referenced by eval().

eval()

PTEX_NAMESPACE_BEGIN void PtexSeparableFilter::eval ( float *  result, int  firstchan, int  nchannels, int  faceid, float  u, float  v, float  uw1, float  vw1, float  uw2, float  vw2, float  width, float  blur  )

virtual

Apply filter to a ptex data file.

The filter region is a parallelogram centered at the given (u,v) coordinate with sides defined by two vectors [uw1, vw1] and [uw2, vw2]. For an axis-aligned rectangle, the vectors are [uw, 0] and [0, vw]. See Filter Footprint for details.

Parameters

result	Buffer to hold filter result. Must be large enough to hold nchannels worth of data.
firstchan	First channel to evaluate [0..tx->numChannels()-1]
nchannels	Number of channels to evaluate
faceid	Face index [0..tx->numFaces()-1]
u	U coordinate, normalized [0..1]
v	V coordinate, normalized [0..1]
uw1	U filter width 1, normalized [0..1]
vw1	V filter width 1, normalized [0..1]
uw2	U filter width 2, normalized [0..1]
vw2	V filter width 2, normalized [0..1]
width	scale factor for filter width
blur	amount to add to filter width [0..1]

Implements PtexFilter.

Definition at line 47 of file PtexSeparableFilter.cpp.

References _dt, _firstChanOffset, _nchan, _ntxchan, _result, _tx, _uMode, _vMode, _weight, PtexUtils::abs(), buildKernel(), PtexUtils::clamp(), Ptex::ConvertToFloat(), Ptex::DataSize(), PtexFaceData::getData(), PtexTexture::getData(), PtexTexture::getFaceInfo(), PtexSeparableKernel::kmax, Ptex::m_black, Ptex::m_clamp, Ptex::m_periodic, PtexUtils::min(), PtexTexture::numFaces(), Ptex::OneValue(), PtexSeparableKernel::res, splitAndApply(), PtexSeparableKernel::stripZeros(), PtexSeparableKernel::upresU(), PtexSeparableKernel::upresV(), PtexSeparableKernel::uw, PtexSeparableKernel::vw, and PtexSeparableKernel::weight().

release()

virtual void PtexSeparableFilter::release ( )

inlinevirtual

Release resources held by this pointer (pointer becomes invalid).

Implements PtexFilter.

Definition at line 48 of file PtexSeparableFilter.h.

splitAndApply()

void PtexSeparableFilter::splitAndApply ( PtexSeparableKernel &  k, int  faceid, const Ptex::FaceInfo &  f  )

protected

Definition at line 135 of file PtexSeparableFilter.cpp.

References _options, _uMode, _vMode, Ptex::FaceInfo::adjface(), apply(), applyAcrossEdge(), applyToCorner(), Ptex::e_bottom, Ptex::e_left, Ptex::e_right, Ptex::e_top, PtexSeparableKernel::mergeB(), PtexSeparableKernel::mergeL(), PtexSeparableKernel::mergeR(), PtexSeparableKernel::mergeT(), PtexFilter::Options::noedgeblend, PtexSeparableKernel::res, PtexSeparableKernel::splitB(), PtexSeparableKernel::splitL(), PtexSeparableKernel::splitR(), PtexSeparableKernel::splitT(), PtexSeparableKernel::u, PtexSeparableKernel::uw, PtexSeparableKernel::v, and PtexSeparableKernel::vw.

Referenced by applyAcrossEdge(), applyToCorner(), applyToCornerFace(), and eval().

Member Data Documentation

_dt

DataType PtexSeparableFilter::_dt

protected

Definition at line 85 of file PtexSeparableFilter.h.

Referenced by apply(), and eval().

_efm

EdgeFilterMode PtexSeparableFilter::_efm

protected

Definition at line 87 of file PtexSeparableFilter.h.

Referenced by apply().

_firstChanOffset

int PtexSeparableFilter::_firstChanOffset

protected

Definition at line 82 of file PtexSeparableFilter.h.

Referenced by apply(), and eval().

_nchan

int PtexSeparableFilter::_nchan

protected

Definition at line 83 of file PtexSeparableFilter.h.

Referenced by apply(), and eval().

_ntxchan

int PtexSeparableFilter::_ntxchan

protected

Definition at line 84 of file PtexSeparableFilter.h.

Referenced by apply(), and eval().

_options

Options PtexSeparableFilter::_options

protected

Definition at line 79 of file PtexSeparableFilter.h.

Referenced by PtexWidth4Filter::buildKernelAxis(), PtexSeparableFilter(), and splitAndApply().

_result

float* PtexSeparableFilter::_result

protected

Definition at line 80 of file PtexSeparableFilter.h.

Referenced by apply(), and eval().

_tx

PtexTexture* PtexSeparableFilter::_tx

protected

Definition at line 78 of file PtexSeparableFilter.h.

Referenced by apply(), applyAcrossEdge(), applyToCorner(), and eval().

_uMode

BorderMode PtexSeparableFilter::_uMode

protected

Definition at line 86 of file PtexSeparableFilter.h.

Referenced by eval(), and splitAndApply().

_vMode

BorderMode PtexSeparableFilter::_vMode

protected

Definition at line 86 of file PtexSeparableFilter.h.

Referenced by eval(), and splitAndApply().

_weight

float PtexSeparableFilter::_weight

protected

Definition at line 81 of file PtexSeparableFilter.h.

Referenced by applyToCorner(), and eval().

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The documentation for this class was generated from the following files:

• PtexSeparableFilter.h
• PtexSeparableFilter.cpp