Ptex: PtexTriangleFilter.h Source File

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PtexTriangleFilter.h
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1 #ifndef PtexTriangleFilter_h
2 #define PtexTriangleFilter_h
3
4 /*
5 PTEX SOFTWARE
6 Copyright 2009 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 class PtexTriangleKernel;
41 class PtexTriangleKernelIter;
42
43 class PtexTriangleFilter : public PtexFilter, public Ptex
44 {
45 public:
46 PtexTriangleFilter(PtexTexture* tx, const PtexFilter::Options& opts ) :
47 _tx(tx), _options(opts), _result(0), _weight(0),
48 _firstChanOffset(0), _nchan(0), _ntxchan(0),
49 _dt((DataType)0) {}
50 virtual void release() { delete this; }
51 virtual void eval(float* result, int firstchan, int nchannels,
52 int faceid, float u, float v,
53 float uw1, float vw1, float uw2, float vw2,
54 float width, float blur);
55
56 protected:
57 void buildKernel(PtexTriangleKernel& k, float u, float v,
58 float uw1, float vw1, float uw2, float vw2,
59 float width, float blur, Res faceRes);
60
61 void splitAndApply(PtexTriangleKernel& k, int faceid, const Ptex::FaceInfo& f);
62 void applyAcrossEdge(PtexTriangleKernel& k, const Ptex::FaceInfo& f, int eid);
63 void apply(PtexTriangleKernel& k, int faceid, const Ptex::FaceInfo& f);
64 void applyIter(PtexTriangleKernelIter& k, PtexFaceData* dh);
65
66 virtual ~PtexTriangleFilter() {}
67
68 PtexTexture* _tx; // texture being evaluated
69 Options _options; // options
70 float* _result; // temp result
71 float _weight; // accumulated weight of data in _result
72 int _firstChanOffset; // byte offset of first channel to eval
73 int _nchan; // number of channels to eval
74 int _ntxchan; // number of channels in texture
75 DataType _dt; // data type of texture
76 };
77
78 #endif
PtexTriangleFilter::apply
void apply(PtexTriangleKernel &k, int faceid, const Ptex::FaceInfo &f)
Definition: PtexTriangleFilter.cpp:198
PtexTriangleFilter::~PtexTriangleFilter
virtual ~PtexTriangleFilter()
Definition: PtexTriangleFilter.h:66
PtexTriangleFilter::_ntxchan
int _ntxchan
Definition: PtexTriangleFilter.h:74
Ptex
Common data structures and enums used throughout the API.
Definition: Ptexture.h:73
PtexTriangleFilter::_tx
PtexTexture * _tx
Definition: PtexTriangleFilter.h:68
PtexTriangleFilter::PtexTriangleFilter
PtexTriangleFilter(PtexTexture *tx, const PtexFilter::Options &opts)
Definition: PtexTriangleFilter.h:46
PtexTriangleFilter::_weight
float _weight
Definition: PtexTriangleFilter.h:71
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:103
PtexTriangleKernelIter
Triangle filter kernel iterator (in texel coords)
Definition: PtexTriangleKernel.h:52
Res
Pixel resolution of a given texture.
Definition: Ptexture.h:274
PtexTriangleFilter::splitAndApply
void splitAndApply(PtexTriangleKernel &k, int faceid, const Ptex::FaceInfo &f)
Definition: PtexTriangleFilter.cpp:165
PtexFaceData
Per-face texture data accessor.
Definition: Ptexture.h:388
DataType
DataType
Type of data stored in texture file.
Definition: Ptexture.h:196
PtexTriangleFilter::_result
float * _result
Definition: PtexTriangleFilter.h:70
PtexTriangleFilter::release
virtual void release()
Release resources held by this pointer (pointer becomes invalid).
Definition: PtexTriangleFilter.h:50
PtexTriangleKernel
Triangle filter kernel (in normalized triangle coords)
Definition: PtexTriangleKernel.h:80
PtexTriangleFilter::_firstChanOffset
int _firstChanOffset
Definition: PtexTriangleFilter.h:72
PtexTexture
Interface for reading data from a ptex file.
Definition: Ptexture.h:439
PtexTriangleFilter::_options
Options _options
Definition: PtexTriangleFilter.h:69
PtexTriangleFilter::applyAcrossEdge
void applyAcrossEdge(PtexTriangleKernel &k, const Ptex::FaceInfo &f, int eid)
Definition: PtexTriangleFilter.cpp:188
PtexTriangleFilter::_nchan
int _nchan
Definition: PtexTriangleFilter.h:73
PtexTriangleFilter
Definition: PtexTriangleFilter.h:43
Ptex::FaceInfo
Information about a face, as stored in the Ptex file header.
Definition: Ptexture.h:237
PtexFilter::Options
Choose filter options.
Definition: Ptexture.h:880
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:48
PtexTriangleFilter::_dt
DataType _dt
Definition: PtexTriangleFilter.h:75
Ptexture.h
Public API classes for reading, writing, caching, and filtering Ptex files.
PtexTriangleFilter::applyIter
void applyIter(PtexTriangleKernelIter &k, PtexFaceData *dh)
Definition: PtexTriangleFilter.cpp:218
PtexFilter
Interface for filtered sampling of ptex data files.
Definition: Ptexture.h:861