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PtexIO.h
Go to the documentation of this file.
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#ifndef PtexIO_h
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#define PtexIO_h
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/*
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PTEX SOFTWARE
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Copyright 2009 Disney Enterprises, Inc. All rights reserved
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are
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met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the
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distribution.
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* The names "Disney", "Walt Disney Pictures", "Walt Disney Animation
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Studios" or the names of its contributors may NOT be used to
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endorse or promote products derived from this software without
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specific prior written permission from Walt Disney Pictures.
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Disclaimer: THIS SOFTWARE IS PROVIDED BY WALT DISNEY PICTURES AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE, NONINFRINGEMENT AND TITLE ARE DISCLAIMED.
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IN NO EVENT SHALL WALT DISNEY PICTURES, THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND BASED ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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*/
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#include "
Ptexture.h
"
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struct
PtexIO
:
public
Ptex
{
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struct
Header
{
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uint32_t
magic
;
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uint32_t
version
;
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MeshType
meshtype
:32;
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DataType
datatype
:32;
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int32_t
alphachan
;
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uint16_t
nchannels
;
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uint16_t
nlevels
;
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uint32_t
nfaces
;
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uint32_t
extheadersize
;
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uint32_t
faceinfosize
;
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uint32_t
constdatasize
;
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uint32_t
levelinfosize
;
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uint32_t
minorversion
;
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uint64_t
leveldatasize
;
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uint32_t
metadatazipsize
;
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uint32_t
metadatamemsize
;
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int
pixelSize
()
const
{
return
DataSize
(
datatype
) *
nchannels
; }
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bool
hasAlpha
()
const
{
return
alphachan >= 0 && alphachan <
nchannels
; }
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};
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struct
ExtHeader
{
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BorderMode
ubordermode
:32;
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BorderMode
vbordermode
:32;
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uint32_t
lmdheaderzipsize
;
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uint32_t
lmdheadermemsize
;
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uint64_t
lmddatasize
;
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uint64_t
editdatasize
;
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uint64_t
editdatapos
;
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};
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struct
LevelInfo
{
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uint64_t
leveldatasize
;
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uint32_t
levelheadersize
;
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uint32_t
nfaces
;
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LevelInfo
() : leveldatasize(0), levelheadersize(0), nfaces(0) {}
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};
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enum
Encoding
{
enc_constant
,
enc_zipped
,
enc_diffzipped
,
enc_tiled
};
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struct
FaceDataHeader
{
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uint32_t
data
;
// bits 0..29 = blocksize, bits 30..31 = encoding
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uint32_t
blocksize
()
const
{
return
data & 0x3fffffff; }
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Encoding
encoding
()
const
{
return
Encoding
((data >> 30) & 0x3); }
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uint32_t&
val
() {
return
*(uint32_t*)
this
; }
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const
uint32_t&
val
()
const
{
return
*(uint32_t*)
this
; }
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void
set
(uint32_t
blocksize
,
Encoding
encoding
)
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{ data = (blocksize & 0x3fffffff) | ((encoding & 0x3) << 30); }
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FaceDataHeader
() : data(0) {}
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};
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enum
EditType
{
et_editfacedata
,
et_editmetadata
};
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struct
EditFaceDataHeader
{
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uint32_t
faceid
;
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FaceInfo
faceinfo
;
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FaceDataHeader
fdh
;
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};
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struct
EditMetaDataHeader
{
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uint32_t
metadatazipsize
;
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uint32_t
metadatamemsize
;
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};
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static
const
uint32_t
Magic
=
'P'
| (
't'
<<8) | (
'e'
<<16) | (
'x'
<<24);
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static
const
int
HeaderSize
=
sizeof
(
Header
);
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static
const
int
ExtHeaderSize
=
sizeof
(
ExtHeader
);
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static
const
int
LevelInfoSize
=
sizeof
(
LevelInfo
);
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static
const
int
FaceDataHeaderSize
=
sizeof
(
FaceDataHeader
);
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static
const
int
EditFaceDataHeaderSize
=
sizeof
(
EditFaceDataHeader
);
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static
const
int
EditMetaDataHeaderSize
=
sizeof
(
EditMetaDataHeader
);
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// these constants can be tuned for performance
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static
const
int
IBuffSize
= 8192;
// default input buffer size
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static
const
int
BlockSize
= 16384;
// target block size for file I/O
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static
const
int
TileSize
= 65536;
// target tile size (uncompressed)
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static
const
int
AllocaMax
= 16384;
// max size for using alloca
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static
const
int
MetaDataThreshold
= 1024;
// cutoff for large meta data
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static
bool
LittleEndian
() {
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short
word = 0x0201;
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return
*(
char
*)&word == 1;
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}
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};
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#endif
PtexIO::LevelInfo::leveldatasize
uint64_t leveldatasize
Definition:
PtexIO.h:72
PtexIO::FaceDataHeader::set
void set(uint32_t blocksize, Encoding encoding)
Definition:
PtexIO.h:84
PtexIO::Header::meshtype
MeshType meshtype
Definition:
PtexIO.h:45
PtexIO::ExtHeader::editdatapos
uint64_t editdatapos
Definition:
PtexIO.h:69
PtexIO::EditFaceDataHeader::faceinfo
FaceInfo faceinfo
Definition:
PtexIO.h:91
PtexIO::Header::nfaces
uint32_t nfaces
Definition:
PtexIO.h:50
PtexIO::Header::levelinfosize
uint32_t levelinfosize
Definition:
PtexIO.h:54
PtexIO::FaceDataHeader
Definition:
PtexIO.h:78
Ptex
Common data structures and enums used throughout the API.
Definition:
Ptexture.h:73
PtexIO::FaceDataHeader::val
const uint32_t & val() const
Definition:
PtexIO.h:83
MeshType
MeshType
Type of base mesh for which the textures are defined.
Definition:
Ptexture.h:190
PtexIO::Header::nlevels
uint16_t nlevels
Definition:
PtexIO.h:49
Ptex::DataSize
static int DataSize(DataType dt)
Look up size of given data type (in bytes).
Definition:
Ptexture.h:132
PtexIO::ExtHeader::lmdheaderzipsize
uint32_t lmdheaderzipsize
Definition:
PtexIO.h:65
PtexIO::AllocaMax
static const int AllocaMax
Definition:
PtexIO.h:111
PtexIO::Header::nchannels
uint16_t nchannels
Definition:
PtexIO.h:48
PtexIO::EditMetaDataHeader::metadatamemsize
uint32_t metadatamemsize
Definition:
PtexIO.h:96
PtexIO::HeaderSize
static const int HeaderSize
Definition:
PtexIO.h:100
PtexIO::Header::constdatasize
uint32_t constdatasize
Definition:
PtexIO.h:53
PtexIO::FaceDataHeader::val
uint32_t & val()
Definition:
PtexIO.h:82
PtexIO::Header::pixelSize
int pixelSize() const
Definition:
PtexIO.h:59
PtexIO::ExtHeader::ubordermode
BorderMode ubordermode
Definition:
PtexIO.h:63
PtexIO::Header::faceinfosize
uint32_t faceinfosize
Definition:
PtexIO.h:52
PtexIO::LevelInfoSize
static const int LevelInfoSize
Definition:
PtexIO.h:102
PtexIO::et_editfacedata
Definition:
PtexIO.h:88
PtexIO::EditMetaDataHeaderSize
static const int EditMetaDataHeaderSize
Definition:
PtexIO.h:105
PtexIO::Header::metadatazipsize
uint32_t metadatazipsize
Definition:
PtexIO.h:57
PtexIO::EditFaceDataHeader
Definition:
PtexIO.h:89
PtexIO::enc_constant
Definition:
PtexIO.h:77
PtexIO::Encoding
Encoding
Definition:
PtexIO.h:77
PtexIO::LevelInfo::levelheadersize
uint32_t levelheadersize
Definition:
PtexIO.h:73
PtexIO::EditMetaDataHeader::metadatazipsize
uint32_t metadatazipsize
Definition:
PtexIO.h:95
PtexIO::ExtHeader::lmdheadermemsize
uint32_t lmdheadermemsize
Definition:
PtexIO.h:66
PtexIO::FaceDataHeader::blocksize
uint32_t blocksize() const
Definition:
PtexIO.h:80
PtexIO::ExtHeaderSize
static const int ExtHeaderSize
Definition:
PtexIO.h:101
PtexIO::MetaDataThreshold
static const int MetaDataThreshold
Definition:
PtexIO.h:112
PtexIO::Header::version
uint32_t version
Definition:
PtexIO.h:44
PtexIO::ExtHeader
Definition:
PtexIO.h:62
PtexIO::LevelInfo::nfaces
uint32_t nfaces
Definition:
PtexIO.h:74
DataType
DataType
Type of data stored in texture file.
Definition:
Ptexture.h:196
FaceInfo
Information about a face, as stored in the Ptex file header.
Definition:
Ptexture.h:350
BorderMode
BorderMode
How to handle mesh border when filtering.
Definition:
Ptexture.h:204
PtexIO::Header::hasAlpha
bool hasAlpha() const
Definition:
PtexIO.h:60
PtexIO::Header::datatype
DataType datatype
Definition:
PtexIO.h:46
PtexIO
Definition:
PtexIO.h:41
PtexIO::enc_zipped
Definition:
PtexIO.h:77
PtexIO::Header
Definition:
PtexIO.h:42
PtexIO::FaceDataHeader::encoding
Encoding encoding() const
Definition:
PtexIO.h:81
PtexIO::Magic
static const uint32_t Magic
Definition:
PtexIO.h:99
PtexIO::Header::magic
uint32_t magic
Definition:
PtexIO.h:43
PtexIO::Header::alphachan
int32_t alphachan
Definition:
PtexIO.h:47
PtexIO::TileSize
static const int TileSize
Definition:
PtexIO.h:110
PtexIO::Header::minorversion
uint32_t minorversion
Definition:
PtexIO.h:55
PtexIO::EditFaceDataHeader::faceid
uint32_t faceid
Definition:
PtexIO.h:90
PtexIO::ExtHeader::vbordermode
BorderMode vbordermode
Definition:
PtexIO.h:64
PtexIO::ExtHeader::lmddatasize
uint64_t lmddatasize
Definition:
PtexIO.h:67
PtexIO::Header::metadatamemsize
uint32_t metadatamemsize
Definition:
PtexIO.h:58
PtexIO::ExtHeader::editdatasize
uint64_t editdatasize
Definition:
PtexIO.h:68
PtexIO::Header::extheadersize
uint32_t extheadersize
Definition:
PtexIO.h:51
PtexIO::BlockSize
static const int BlockSize
Definition:
PtexIO.h:109
PtexIO::IBuffSize
static const int IBuffSize
Definition:
PtexIO.h:108
PtexIO::FaceDataHeader::data
uint32_t data
Definition:
PtexIO.h:79
PtexIO::FaceDataHeaderSize
static const int FaceDataHeaderSize
Definition:
PtexIO.h:103
PtexIO::enc_tiled
Definition:
PtexIO.h:77
PtexIO::LevelInfo::LevelInfo
LevelInfo()
Definition:
PtexIO.h:75
PtexIO::EditType
EditType
Definition:
PtexIO.h:88
PtexIO::EditMetaDataHeader
Definition:
PtexIO.h:94
PtexIO::Header::leveldatasize
uint64_t leveldatasize
Definition:
PtexIO.h:56
PtexIO::enc_diffzipped
Definition:
PtexIO.h:77
PtexIO::LevelInfo
Definition:
PtexIO.h:71
PtexIO::LittleEndian
static bool LittleEndian()
Definition:
PtexIO.h:114
PtexIO::EditFaceDataHeaderSize
static const int EditFaceDataHeaderSize
Definition:
PtexIO.h:104
PtexIO::FaceDataHeader::FaceDataHeader
FaceDataHeader()
Definition:
PtexIO.h:86
PtexIO::et_editmetadata
Definition:
PtexIO.h:88
PtexIO::EditFaceDataHeader::fdh
FaceDataHeader fdh
Definition:
PtexIO.h:92
Ptexture.h
Public API classes for reading, writing, caching, and filtering Ptex files.
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