OpenVDB  6.1.0
io.h
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3 // Copyright (c) 2012-2018 DreamWorks Animation LLC
4 //
5 // All rights reserved. This software is distributed under the
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30 
31 #ifndef OPENVDB_IO_IO_HAS_BEEN_INCLUDED
32 #define OPENVDB_IO_IO_HAS_BEEN_INCLUDED
33 
34 #include <openvdb/Platform.h>
35 #include <openvdb/Types.h> // for SharedPtr
36 #include <openvdb/version.h>
37 #include <boost/any.hpp>
38 #include <functional>
39 #include <iosfwd> // for std::ios_base
40 #include <map>
41 #include <memory>
42 #include <string>
43 
44 class TestMappedFile;
45 
46 namespace openvdb {
48 namespace OPENVDB_VERSION_NAME {
49 
50 class MetaMap;
51 
52 namespace io {
53 
58 {
59 public:
62 
65  explicit StreamMetadata(std::ios_base&);
66  ~StreamMetadata();
67 
68  StreamMetadata& operator=(const StreamMetadata&);
69 
72  void transferTo(std::ios_base&) const;
73 
74  uint32_t fileVersion() const;
75  void setFileVersion(uint32_t);
76 
77  VersionId libraryVersion() const;
78  void setLibraryVersion(VersionId);
79 
80  uint32_t compression() const;
81  void setCompression(uint32_t);
82 
83  uint32_t gridClass() const;
84  void setGridClass(uint32_t);
85 
86  const void* backgroundPtr() const;
87  void setBackgroundPtr(const void*);
88 
89  bool halfFloat() const;
90  void setHalfFloat(bool);
91 
92  bool writeGridStats() const;
93  void setWriteGridStats(bool);
94 
95  bool seekable() const;
96  void setSeekable(bool);
97 
98  bool countingPasses() const;
99  void setCountingPasses(bool);
100 
101  uint32_t pass() const;
102  void setPass(uint32_t);
103 
105  MetaMap& gridMetadata();
111  const MetaMap& gridMetadata() const;
113 
114  using AuxDataMap = std::map<std::string, boost::any>;
116  AuxDataMap& auxData();
118  const AuxDataMap& auxData() const;
120 
122  std::string str() const;
123 
124 private:
125  struct Impl;
126  std::unique_ptr<Impl> mImpl;
127 }; // class StreamMetadata
128 
129 
131 std::ostream& operator<<(std::ostream&, const StreamMetadata&);
132 
133 std::ostream& operator<<(std::ostream&, const StreamMetadata::AuxDataMap&);
134 
135 
137 
138 
141 struct MultiPass {};
142 
143 
145 
146 
147 class File;
148 
151 {
152 public:
154 
155  ~MappedFile();
156  MappedFile(const MappedFile&) = delete; // not copyable
157  MappedFile& operator=(const MappedFile&) = delete;
158 
160  std::string filename() const;
161 
171  SharedPtr<std::streambuf> createBuffer() const;
172 
173  using Notifier = std::function<void(std::string /*filename*/)>;
176  void setNotifier(const Notifier&);
178  void clearNotifier();
179 
180 private:
181  friend class File;
182  friend class ::TestMappedFile;
183 
184  explicit MappedFile(const std::string& filename, bool autoDelete = false);
185 
186  class Impl;
187  std::unique_ptr<Impl> mImpl;
188 }; // class MappedFile
189 
190 
192 
193 
195 std::string getErrorString(int errorNum);
196 
197 
199 std::string getErrorString();
200 
201 
203 
204 
207 OPENVDB_API uint32_t getFormatVersion(std::ios_base&);
208 
211 OPENVDB_API VersionId getLibraryVersion(std::ios_base&);
212 
215 OPENVDB_API std::string getVersion(std::ios_base&);
216 
218 OPENVDB_API void setCurrentVersion(std::istream&);
219 
223 OPENVDB_API void setVersion(std::ios_base&, const VersionId& libraryVersion, uint32_t fileVersion);
224 
228 OPENVDB_API uint32_t getDataCompression(std::ios_base&);
232 OPENVDB_API void setDataCompression(std::ios_base&, uint32_t compressionFlags);
233 
236 OPENVDB_API uint32_t getGridClass(std::ios_base&);
239 OPENVDB_API void setGridClass(std::ios_base&, uint32_t);
240 
243 OPENVDB_API bool getHalfFloat(std::ios_base&);
246 OPENVDB_API void setHalfFloat(std::ios_base&, bool);
247 
250 OPENVDB_API const void* getGridBackgroundValuePtr(std::ios_base&);
254 OPENVDB_API void setGridBackgroundValuePtr(std::ios_base&, const void* background);
255 
258 OPENVDB_API bool getWriteGridStatsMetadata(std::ios_base&);
261 OPENVDB_API void setWriteGridStatsMetadata(std::ios_base&, bool writeGridStats);
262 
269 OPENVDB_API void setMappedFilePtr(std::ios_base&, SharedPtr<MappedFile>&);
270 
281 OPENVDB_API void setStreamMetadataPtr(std::ios_base&,
282  SharedPtr<StreamMetadata>&, bool transfer = true);
286 
287 } // namespace io
288 } // namespace OPENVDB_VERSION_NAME
289 } // namespace openvdb
290 
291 #endif // OPENVDB_IO_IO_HAS_BEEN_INCLUDED
292 
293 // Copyright (c) 2012-2018 DreamWorks Animation LLC
294 // All rights reserved. This software is distributed under the
295 // Mozilla Public License 2.0 ( http://www.mozilla.org/MPL/2.0/ )
openvdb::v6_1::MetaMap
Container that maps names (strings) to values of arbitrary types.
Definition: MetaMap.h:46
openvdb::v6_1::io::getLibraryVersion
OPENVDB_API VersionId getLibraryVersion(std::ios_base &)
Return the (major, minor) library version number associated with the given input stream.
openvdb::v6_1::io::getVersion
OPENVDB_API std::string getVersion(std::ios_base &)
Return a string of the form "<major>.<minor>/<format>", giving the library and file format version nu...
openvdb::v6_1::io::setHalfFloat
OPENVDB_API void setHalfFloat(std::ios_base &, bool)
Specify whether floating-point values should be quantized to 16 bits when writing to the given stream...
Types.h
openvdb::v6_1::io::operator<<
std::ostream & operator<<(std::ostream &, const StreamMetadata::AuxDataMap &)
openvdb::v6_1::io::MappedFile::Ptr
SharedPtr< MappedFile > Ptr
Definition: io.h:153
openvdb::v6_1::io::clearStreamMetadataPtr
OPENVDB_API SharedPtr< StreamMetadata > clearStreamMetadataPtr(std::ios_base &)
Dissociate the given stream from its metadata object (if it has one) and return a shared pointer to t...
openvdb::v6_1::io::getMappedFilePtr
OPENVDB_API SharedPtr< MappedFile > getMappedFilePtr(std::ios_base &)
Return a shared pointer to the memory-mapped file with which the given stream is associated,...
openvdb::v6_1::io::setStreamMetadataPtr
OPENVDB_API void setStreamMetadataPtr(std::ios_base &, SharedPtr< StreamMetadata > &, bool transfer=true)
Associate the given stream with (a shared pointer to) an object that stores metadata (file format,...
openvdb::v6_1::io::MappedFile::Notifier
std::function< void(std::string)> Notifier
Definition: io.h:173
version.h
Library and file format version numbers.
openvdb::v6_1::io::setMappedFilePtr
OPENVDB_API void setMappedFilePtr(std::ios_base &, SharedPtr< MappedFile > &)
Associate the given stream with (a shared pointer to) a memory-mapped file.
openvdb::v6_1::io::getGridBackgroundValuePtr
const OPENVDB_API void * getGridBackgroundValuePtr(std::ios_base &)
Return a pointer to the background value of the grid currently being read from or written to the give...
Platform.h
openvdb::v6_1::io::MultiPass
Leaf nodes that require multi-pass I/O must inherit from this struct.
Definition: io.h:141
openvdb::v6_1::io::getWriteGridStatsMetadata
OPENVDB_API bool getWriteGridStatsMetadata(std::ios_base &)
Return true if grid statistics (active voxel count and bounding box, etc.) should be computed and sto...
openvdb::v6_1::io::StreamMetadata
Container for metadata describing how to unserialize grids from and/or serialize grids to a stream (w...
Definition: io.h:57
openvdb::v6_1::io::StreamMetadata::AuxDataMap
std::map< std::string, boost::any > AuxDataMap
Definition: io.h:114
openvdb::v6_1::io::setGridBackgroundValuePtr
OPENVDB_API void setGridBackgroundValuePtr(std::ios_base &, const void *background)
Specify (a pointer to) the background value of the grid currently being read from or written to the g...
OPENVDB_API
#define OPENVDB_API
Helper macros for defining library symbol visibility.
Definition: Platform.h:288
openvdb::v6_1::SharedPtr
std::shared_ptr< T > SharedPtr
Definition: Types.h:139
openvdb::v6_1::io::StreamMetadata::Ptr
SharedPtr< StreamMetadata > Ptr
Definition: io.h:60
openvdb::v6_1::io::getHalfFloat
OPENVDB_API bool getHalfFloat(std::ios_base &)
Return true if floating-point values should be quantized to 16 bits when writing to the given stream ...
openvdb::v6_1::io::MappedFile
Handle to control the lifetime of a memory-mapped .vdb file.
Definition: io.h:150
openvdb::v6_1::io::File
Grid archive associated with a file on disk.
Definition: File.h:57
openvdb::v6_1::VersionId
Definition: version.h:233
OPENVDB_USE_VERSION_NAMESPACE
#define OPENVDB_USE_VERSION_NAMESPACE
Definition: version.h:177
openvdb::v6_1::io::setGridClass
OPENVDB_API void setGridClass(std::ios_base &, uint32_t)
Associate with the given stream the class (GRID_LEVEL_SET, GRID_UNKNOWN, etc.) of the grid currently ...
openvdb::v6_1::io::setWriteGridStatsMetadata
OPENVDB_API void setWriteGridStatsMetadata(std::ios_base &, bool writeGridStats)
Specify whether to compute grid statistics (active voxel count and bounding box, etc....
openvdb::v6_1::io::getFormatVersion
OPENVDB_API uint32_t getFormatVersion(std::ios_base &)
Return the file format version number associated with the given input stream.
OPENVDB_VERSION_NAME
#define OPENVDB_VERSION_NAME
The version namespace name for this library version.
Definition: version.h:125
openvdb::v6_1::io::getDataCompression
OPENVDB_API uint32_t getDataCompression(std::ios_base &)
Return a bitwise OR of compression option flags (COMPRESS_ZIP, COMPRESS_ACTIVE_MASK,...
openvdb::v6_1::io::setVersion
OPENVDB_API void setVersion(std::ios_base &, const VersionId &libraryVersion, uint32_t fileVersion)
Associate specific file format and library version numbers with the given stream.
openvdb::v6_1::io::StreamMetadata::ConstPtr
SharedPtr< const StreamMetadata > ConstPtr
Definition: io.h:61
openvdb
Definition: Exceptions.h:40
openvdb::v6_1::io::getStreamMetadataPtr
OPENVDB_API SharedPtr< StreamMetadata > getStreamMetadataPtr(std::ios_base &)
Return a shared pointer to an object that stores metadata (file format, compression scheme,...
openvdb::v6_1::io::setDataCompression
OPENVDB_API void setDataCompression(std::ios_base &, uint32_t compressionFlags)
Associate with the given stream a bitwise OR of compression option flags (COMPRESS_ZIP,...
openvdb::v6_1::io::setCurrentVersion
OPENVDB_API void setCurrentVersion(std::istream &)
Associate the current file format and library version numbers with the given input stream.
openvdb::v6_1::io::getErrorString
std::string getErrorString()
Return a string (possibly empty) describing the most recent system error.
openvdb::v6_1::io::getGridClass
OPENVDB_API uint32_t getGridClass(std::ios_base &)
Return the class (GRID_LEVEL_SET, GRID_UNKNOWN, etc.) of the grid currently being read from or writte...