Ptex

PtexTriangleFilter.h
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1#ifndef PtexTriangleFilter_h
2#define PtexTriangleFilter_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 PtexTriangleKernel;
44 class PtexTriangleKernelIter;
45
46 class PtexTriangleFilter : public PtexFilter
47{
48 public:
49 PtexTriangleFilter(PtexTexture* tx, const PtexFilter::Options& opts ) :
50 _tx(tx), _options(opts), _result(0), _weight(0),
51 _firstChanOffset(0), _nchan(0), _ntxchan(0),
52 _dt((DataType)0) {}
53 virtual void release() { delete this; }
54 virtual void eval(float* result, int firstchan, int nchannels,
55 int faceid, float u, float v,
56 float uw1, float vw1, float uw2, float vw2,
57 float width, float blur);
58 virtual ~PtexTriangleFilter() {}
59
60 protected:
61 void buildKernel(PtexTriangleKernel& k, float u, float v,
62 float uw1, float vw1, float uw2, float vw2,
63 float width, float blur, Res faceRes);
64
65 void splitAndApply(PtexTriangleKernel& k, int faceid, const Ptex::FaceInfo& f);
66 void applyAcrossEdge(PtexTriangleKernel& k, const Ptex::FaceInfo& f, int eid);
67 void apply(PtexTriangleKernel& k, int faceid, const Ptex::FaceInfo& f);
68 void applyIter(PtexTriangleKernelIter& k, PtexFaceData* dh);
69
70 PtexTexture* _tx; // texture being evaluated
71 Options _options; // options
72 float* _result; // temp result
73 float _weight; // accumulated weight of data in _result
74 int _firstChanOffset; // byte offset of first channel to eval
75 int _nchan; // number of channels to eval
76 int _ntxchan; // number of channels in texture
77 DataType _dt; // data type of texture
78};
79
80 PTEX_NAMESPACE_END
81
82#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.
PtexFaceData
Per-face texture data accessor.
Definition Ptexture.h:409
PtexFilter
Interface for filtered sampling of ptex data files.
Definition Ptexture.h:943
PtexTexture
Interface for reading data from a ptex file.
Definition Ptexture.h:460
PtexTriangleFilter::_ntxchan
int _ntxchan
Definition PtexTriangleFilter.h:76
PtexTriangleFilter::splitAndApply
void splitAndApply(PtexTriangleKernel &k, int faceid, const Ptex::FaceInfo &f)
Definition PtexTriangleFilter.cpp:164
PtexTriangleFilter::_weight
float _weight
Definition PtexTriangleFilter.h:73
PtexTriangleFilter::applyIter
void applyIter(PtexTriangleKernelIter &k, PtexFaceData *dh)
Definition PtexTriangleFilter.cpp:231
PtexTriangleFilter::apply
void apply(PtexTriangleKernel &k, int faceid, const Ptex::FaceInfo &f)
Definition PtexTriangleFilter.cpp:197
PtexTriangleFilter::~PtexTriangleFilter
virtual ~PtexTriangleFilter()
Definition PtexTriangleFilter.h:58
PtexTriangleFilter::_result
float * _result
Definition PtexTriangleFilter.h:72
PtexTriangleFilter::buildKernel
void buildKernel(PtexTriangleKernel &k, float u, float v, float uw1, float vw1, float uw2, float vw2, float width, float blur, Res faceRes)
Definition PtexTriangleFilter.cpp:102
PtexTriangleFilter::_firstChanOffset
int _firstChanOffset
Definition PtexTriangleFilter.h:74
PtexTriangleFilter::applyAcrossEdge
void applyAcrossEdge(PtexTriangleKernel &k, const Ptex::FaceInfo &f, int eid)
Definition PtexTriangleFilter.cpp:187
PtexTriangleFilter::_nchan
int _nchan
Definition PtexTriangleFilter.h:75
PtexTriangleFilter::_options
Options _options
Definition PtexTriangleFilter.h:71
PtexTriangleFilter::release
virtual void release()
Release resources held by this pointer (pointer becomes invalid).
Definition PtexTriangleFilter.h:53
PtexTriangleFilter::PtexTriangleFilter
PtexTriangleFilter(PtexTexture *tx, const PtexFilter::Options &opts)
Definition PtexTriangleFilter.h:49
PtexTriangleFilter::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 PtexTriangleFilter.cpp:50
PtexTriangleFilter::_dt
DataType _dt
Definition PtexTriangleFilter.h:77
PtexTriangleFilter::_tx
PtexTexture * _tx
Definition PtexTriangleFilter.h:70
PtexTriangleKernelIter
Triangle filter kernel iterator (in texel coords).
Definition PtexTriangleKernel.h:54
PtexTriangleKernel
Triangle filter kernel (in normalized triangle coords).
Definition PtexTriangleKernel.h:82
PTEX_NAMESPACE_BEGIN
Definition PtexSeparableKernel.cpp:42
PtexFilter::Options
Choose filter options.
Definition Ptexture.h:962
Ptex::FaceInfo
Information about a face, as stored in the Ptex file header.
Definition Ptexture.h:232