Ptex

PtexSeparableFilter.h
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1 #ifndef PtexSeparableFilter_h
2 #define PtexSeparableFilter_h
3
4 /*
5 PTEX SOFTWARE
6 Copyright 2014 Disney Enterprises, Inc. All rights reserved
7
8 Redistribution and use in source and binary forms, with or without
9 modification, are permitted provided that the following conditions are
10 met:
11
12 * Redistributions of source code must retain the above copyright
13 notice, this list of conditions and the following disclaimer.
14
15 * Redistributions in binary form must reproduce the above copyright
16 notice, this list of conditions and the following disclaimer in
17 the documentation and/or other materials provided with the
18 distribution.
19
20 * The names "Disney", "Walt Disney Pictures", "Walt Disney Animation
21 Studios" or the names of its contributors may NOT be used to
22 endorse or promote products derived from this software without
23 specific prior written permission from Walt Disney Pictures.
24
25 Disclaimer: THIS SOFTWARE IS PROVIDED BY WALT DISNEY PICTURES AND
26 CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
27 BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
28 FOR A PARTICULAR PURPOSE, NONINFRINGEMENT AND TITLE ARE DISCLAIMED.
29 IN NO EVENT SHALL WALT DISNEY PICTURES, THE COPYRIGHT HOLDER OR
30 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND BASED ON ANY
34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
37 */
38
39 #include "Ptexture.h"
40
41 PTEX_NAMESPACE_BEGIN
42
43 class PtexSeparableKernel;
44
45 class PtexSeparableFilter : public PtexFilter
46 {
47 public:
48 virtual void release() { delete this; }
49 virtual void eval(float* result, int firstchan, int nchannels,
50 int faceid, float u, float v,
51 float uw1, float vw1, float uw2, float vw2,
52 float width, float blur);
53
54 protected:
55 PtexSeparableFilter(PtexTexture* tx, const PtexFilter::Options& opts ) :
56 _tx(tx), _options(opts), _result(0), _weight(0),
57 _firstChanOffset(0), _nchan(0), _ntxchan(_tx->numChannels()),
58 _dt(tx->dataType()), _uMode(tx->uBorderMode()), _vMode(tx->vBorderMode()),
59 _efm(tx->edgeFilterMode())
60 {
61 // if caller was compiled with older version of struct, set default for new opts
62 if (_options.__structSize < (char*)&_options.noedgeblend - (char*)&_options) {
63 _options.noedgeblend = 0;
64 }
65 }
66 virtual ~PtexSeparableFilter() {}
67
68 virtual void buildKernel(PtexSeparableKernel& k, float u, float v, float uw, float vw,
69 Res faceRes) = 0;
70
71 void splitAndApply(PtexSeparableKernel& k, int faceid, const Ptex::FaceInfo& f);
72 void applyAcrossEdge(PtexSeparableKernel& k, int faceid, const Ptex::FaceInfo& f, int eid);
73 void applyToCorner(PtexSeparableKernel& k, int faceid, const Ptex::FaceInfo& f, int eid);
74 void applyToCornerFace(PtexSeparableKernel& k, const Ptex::FaceInfo& f, int eid,
75 int cfaceid, const Ptex::FaceInfo& cf, int ceid);
76 void apply(PtexSeparableKernel& k, int faceid, const Ptex::FaceInfo& f);
77
78 PtexTexture* _tx; // texture being evaluated
79 Options _options; // options
80 float* _result; // temp result
81 float _weight; // accumulated weight of data in _result
82 int _firstChanOffset; // byte offset of first channel to eval
83 int _nchan; // number of channels to eval
84 int _ntxchan; // number of channels in texture
85 DataType _dt; // data type of texture
86 BorderMode _uMode, _vMode; // border modes (clamp,black,periodic)
87 EdgeFilterMode _efm; // edge filter mode (rotate when kernel is rotated or not)
88 };
89
90 PTEX_NAMESPACE_END
91
92 #endif
PTEX_NAMESPACE_END
#define PTEX_NAMESPACE_END
Definition: PtexVersion.h:62
Ptexture.h
Public API classes for reading, writing, caching, and filtering Ptex files.
PtexFilter
Interface for filtered sampling of ptex data files.
Definition: Ptexture.h:937
PtexSeparableFilter
Definition: PtexSeparableFilter.h:46
PtexSeparableFilter::splitAndApply
void splitAndApply(PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f)
Definition: PtexSeparableFilter.cpp:135
PtexSeparableFilter::applyToCornerFace
void applyToCornerFace(PtexSeparableKernel &k, const Ptex::FaceInfo &f, int eid, int cfaceid, const Ptex::FaceInfo &cf, int ceid)
Definition: PtexSeparableFilter.cpp:331
PtexSeparableFilter::eval
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.
Definition: PtexSeparableFilter.cpp:47
PtexSeparableFilter::apply
void apply(PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f)
Definition: PtexSeparableFilter.cpp:348
PtexSeparableFilter::applyAcrossEdge
void applyAcrossEdge(PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f, int eid)
Definition: PtexSeparableFilter.cpp:215
PtexSeparableFilter::_result
float * _result
Definition: PtexSeparableFilter.h:80
PtexSeparableFilter::_tx
PtexTexture * _tx
Definition: PtexSeparableFilter.h:78
PtexSeparableFilter::PtexSeparableFilter
PtexSeparableFilter(PtexTexture *tx, const PtexFilter::Options &opts)
Definition: PtexSeparableFilter.h:55
PtexSeparableFilter::_options
Options _options
Definition: PtexSeparableFilter.h:79
PtexSeparableFilter::_uMode
BorderMode _uMode
Definition: PtexSeparableFilter.h:86
PtexSeparableFilter::applyToCorner
void applyToCorner(PtexSeparableKernel &k, int faceid, const Ptex::FaceInfo &f, int eid)
Definition: PtexSeparableFilter.cpp:257
PtexSeparableFilter::_ntxchan
int _ntxchan
Definition: PtexSeparableFilter.h:84
PtexSeparableFilter::_weight
float _weight
Definition: PtexSeparableFilter.h:81
PtexSeparableFilter::_firstChanOffset
int _firstChanOffset
Definition: PtexSeparableFilter.h:82
PtexSeparableFilter::_efm
EdgeFilterMode _efm
Definition: PtexSeparableFilter.h:87
PtexSeparableFilter::_dt
DataType _dt
Definition: PtexSeparableFilter.h:85
PtexSeparableFilter::_vMode
BorderMode _vMode
Definition: PtexSeparableFilter.h:86
PtexSeparableFilter::buildKernel
virtual void buildKernel(PtexSeparableKernel &k, float u, float v, float uw, float vw, Res faceRes)=0
PtexSeparableFilter::release
virtual void release()
Release resources held by this pointer (pointer becomes invalid).
Definition: PtexSeparableFilter.h:48
PtexSeparableFilter::~PtexSeparableFilter
virtual ~PtexSeparableFilter()
Definition: PtexSeparableFilter.h:66
PtexSeparableFilter::_nchan
int _nchan
Definition: PtexSeparableFilter.h:83
PtexSeparableKernel
Definition: PtexSeparableKernel.h:48
PtexTexture
Interface for reading data from a ptex file.
Definition: Ptexture.h:457
PTEX_NAMESPACE_BEGIN
Definition: PtexSeparableKernel.cpp:42
Ptex::DataType
DataType
Type of data stored in texture file.
Definition: Ptexture.h:72
Ptex::BorderMode
BorderMode
How to handle mesh border when filtering.
Definition: Ptexture.h:86
Ptex::EdgeFilterMode
EdgeFilterMode
How to handle transformation across edges when filtering.
Definition: Ptexture.h:80
PtexFilter::Options
Choose filter options.
Definition: Ptexture.h:956
PtexFilter::Options::__structSize
int __structSize
(for internal use only)
Definition: Ptexture.h:957
PtexFilter::Options::noedgeblend
bool noedgeblend
Disable cross-face filtering. Useful for debugging or rendering on polys.
Definition: Ptexture.h:961
Ptex::FaceInfo
Information about a face, as stored in the Ptex file header.
Definition: Ptexture.h:229