OpenSceneGraph/include/osgDB/Options
2018-05-11 11:15:45 +01:00

282 lines
12 KiB
C++

/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGDB_OPTIONS
#define OSGDB_OPTIONS 1
#include <osgDB/Callbacks>
#include <osgDB/ObjectCache>
#include <osg/ObserverNodePath>
#include <deque>
#include <list>
#include <iosfwd>
namespace osgDB {
/** Options base class used for passing options into plugins to control their operation.*/
class OSGDB_EXPORT Options : public osg::Object
{
public:
/// bit mask for setting up which object types get cached by readObject/Image/HeightField/Node(filename) calls
enum CacheHintOptions
{ /// do not cache objects of any type
CACHE_NONE = 0,
/// cache nodes loaded via readNode(filename)
CACHE_NODES = 1<<0,
/// cache images loaded via readImage(filename)
CACHE_IMAGES = 1<<1,
/// cache heightfield loaded via readHeightField(filename)
CACHE_HEIGHTFIELDS = 1<<2,
/// cache heightfield loaded via readHeightField(filename)
CACHE_ARCHIVES = 1<<3,
/// cache objects loaded via readObject(filename)
CACHE_OBJECTS = 1<<4,
/// cache shaders loaded via readShader(filename)
CACHE_SHADERS = 1<<5,
/// cache on all read*(filename) calls
CACHE_ALL = CACHE_NODES |
CACHE_IMAGES |
CACHE_HEIGHTFIELDS |
CACHE_ARCHIVES |
CACHE_OBJECTS |
CACHE_SHADERS
};
/// Bit mask for which geometry attributes should be imported with double precision where source data is held in double precision
/// This is useful for data that will be pre-processed before rendering.
/// In general the geometry should be converted to floating point before rendering to ensure good performance.
enum PrecisionHint
{
FLOAT_PRECISION_ALL = 0,
DOUBLE_PRECISION_VERTEX = 1<<0,
DOUBLE_PRECISION_NORMAL = 1<<1,
DOUBLE_PRECISION_COLOR = 1<<2,
DOUBLE_PRECISION_SECONDARY_COLOR = 1<<3,
DOUBLE_PRECISION_FOG_COORD = 1<<4,
DOUBLE_PRECISION_TEX_COORD = 1<<5,
DOUBLE_PRECISION_VERTEX_ATTRIB = 1<<6,
DOUBLE_PRECISION_ALL = DOUBLE_PRECISION_VERTEX |
DOUBLE_PRECISION_NORMAL |
DOUBLE_PRECISION_COLOR |
DOUBLE_PRECISION_SECONDARY_COLOR |
DOUBLE_PRECISION_FOG_COORD |
DOUBLE_PRECISION_TEX_COORD |
DOUBLE_PRECISION_VERTEX_ATTRIB
};
/// range of options of whether to build kdtrees automatically on loading
enum BuildKdTreesHint
{
NO_PREFERENCE,
DO_NOT_BUILD_KDTREES,
BUILD_KDTREES
};
Options();
Options(const std::string& str);
Options(const Options& options,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgDB,Options);
Options* cloneOptions(const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) const { return static_cast<Options*>(clone(copyop)); }
/** Set the general Options string.*/
void setOptionString(const std::string& str) { _str = str; parsePluginStringData(str); }
/** Get the general Options string.*/
const std::string& getOptionString() const { return _str; }
/** Set the database path to use a hint of where to look when loading models.*/
void setDatabasePath(const std::string& str) { _databasePaths.clear(); _databasePaths.push_back(str); }
/** Get the database path which is used a hint of where to look when loading models.*/
FilePathList& getDatabasePathList() { return _databasePaths; }
/** Get the const database path which is used a hint of where to look when loading models.*/
const FilePathList& getDatabasePathList() const { return _databasePaths; }
/** Set whether the Registry::ObjectCache should be used by default.*/
void setObjectCacheHint(CacheHintOptions useObjectCache) { _objectCacheHint = useObjectCache; }
/** Get whether the Registry::ObjectCache should be used by default.*/
CacheHintOptions getObjectCacheHint() const { return _objectCacheHint; }
/** Set the ObjectCache that is used to cache previously loaded data.*/
void setObjectCache(ObjectCache* objectCache) { _objectCache = objectCache; }
/** Get the ObjectCache that is used to cache previously loaded data.*/
ObjectCache* getObjectCache() const { return _objectCache.get(); }
/** Set which geometry attributes plugins should import at double precision. */
void setPrecisionHint(PrecisionHint hint) { _precisionHint = hint; }
/** Get which geometry attributes plugins should import at double precision. */
PrecisionHint getPrecisionHint() const { return _precisionHint; }
/** Set whether the KdTrees should be built for geometry in the loader model. */
void setBuildKdTreesHint(BuildKdTreesHint hint) { _buildKdTreesHint = hint; }
/** Get whether the KdTrees should be built for geometry in the loader model. */
BuildKdTreesHint getBuildKdTreesHint() const { return _buildKdTreesHint; }
/** Set the password map to be used by plugins when access files from secure locations.*/
void setAuthenticationMap(AuthenticationMap* authenticationMap) { _authenticationMap = authenticationMap; }
/** Get the password map to be used by plugins when access files from secure locations.*/
const AuthenticationMap* getAuthenticationMap() const { return _authenticationMap.get(); }
/** Sets a plugindata value PluginData with a string */
void setPluginData(const std::string& s, void* v) const { _pluginData[s] = v; }
/** Get a value from the PluginData */
void* getPluginData(const std::string& s) { return _pluginData[s]; }
/** Get a value from the PluginData */
const void* getPluginData(const std::string& s) const
{
PluginDataMap::const_iterator itr = _pluginData.find(s);
return (itr == _pluginData.end()) ? 0 : itr->second;
}
/** Remove a value from the PluginData */
void removePluginData(const std::string& s) const { _pluginData.erase(s); }
/** Get number of PluginData values */
unsigned int getNumPluginData() const { return static_cast<unsigned int>(_pluginData.size()); }
/** Sets a plugindata value PluginData with a string */
void setPluginStringData(const std::string& s, const std::string& v) const { _pluginStringData[s] = v; }
/** Get a string from the PluginStrData */
std::string& getPluginStringData(const std::string& s) { return _pluginStringData[s]; }
/** Get a value from the PluginData */
const std::string getPluginStringData(const std::string& s) const
{
PluginStringDataMap::const_iterator itr = _pluginStringData.find(s);
return (itr == _pluginStringData.end()) ? std::string("") : itr->second;
}
/** Remove a value from the PluginData */
void removePluginStringData(const std::string& s) const { _pluginStringData.erase(s); }
/** Get number of PluginStrData values */
unsigned int getNumPluginStringData() const { return static_cast<unsigned int>(_pluginStringData.size()); }
/** Parse string into plugin string data. This will be automatically done in Options(const std::string&) */
void parsePluginStringData(const std::string& str, char separator1=' ', char separator2='=');
/** Set the find callback to use in place of the default findFile calls.*/
void setFindFileCallback( FindFileCallback* cb) { _findFileCallback = cb; }
/** Get the const findFile callback.*/
FindFileCallback* getFindFileCallback() const { return _findFileCallback.get(); }
/** Set the read callback to use in place of the default readFile calls.*/
void setReadFileCallback( ReadFileCallback* cb) { _readFileCallback = cb; }
/** Get the const readFile callback.*/
ReadFileCallback* getReadFileCallback() const { return _readFileCallback.get(); }
/** Set the callback to use in place of the default writeFile calls.*/
void setWriteFileCallback( WriteFileCallback* cb) { _writeFileCallback = cb; }
/** Get the const writeFile callback.*/
WriteFileCallback* getWriteFileCallback() const { return _writeFileCallback.get(); }
/** Set the callback to use inform the DatabasePager whether a file is located on local or remote file system.*/
void setFileLocationCallback( FileLocationCallback* cb) { _fileLocationCallback = cb; }
/** Get the callback to use inform the DatabasePager whether a file is located on local or remote file system.*/
FileLocationCallback* getFileLocationCallback() const { return _fileLocationCallback.get(); }
/** Set the FileCache that is used to manage local storage of files downloaded from the internet.*/
void setFileCache(FileCache* fileCache) { _fileCache = fileCache; }
/** Get the FileCache that is used to manage local storage of files downloaded from the internet.*/
FileCache* getFileCache() const { return _fileCache.get(); }
/** Set the terrain observer_ptr, use to decorate any osgTerrain subgraphs.*/
void setTerrain(osg::observer_ptr<osg::Node>& terrain) { _terrain = terrain; }
/** Get the terrain observer_ptr, use to decorate any osgTerrain subgraphs.*/
const osg::observer_ptr<osg::Node>& getTerrain() const { return _terrain; }
/** Set the parentGroup observer_ptr, where the loaded model is intended to be added */
void setParentGroup(osg::observer_ptr<osg::Group>& parentGroup) { _parentGroup= parentGroup; }
/** Get the parentGroup observer_ptr, where the loaded model is intended to be added */
const osg::observer_ptr<osg::Group>& getParentGroup() const { return _parentGroup; }
bool operator < (const Options &rhs) const;
bool operator == (const Options &rhs) const;
protected:
virtual ~Options();
std::string _str;
FilePathList _databasePaths;
CacheHintOptions _objectCacheHint;
osg::ref_ptr<ObjectCache> _objectCache;
PrecisionHint _precisionHint;
BuildKdTreesHint _buildKdTreesHint;
osg::ref_ptr<AuthenticationMap> _authenticationMap;
typedef std::map<std::string,void*> PluginDataMap;
mutable PluginDataMap _pluginData;
typedef std::map<std::string,std::string> PluginStringDataMap;
mutable PluginStringDataMap _pluginStringData;
osg::ref_ptr<FindFileCallback> _findFileCallback;
osg::ref_ptr<ReadFileCallback> _readFileCallback;
osg::ref_ptr<WriteFileCallback> _writeFileCallback;
osg::ref_ptr<FileLocationCallback> _fileLocationCallback;
osg::ref_ptr<FileCache> _fileCache;
osg::observer_ptr<osg::Node> _terrain;
osg::observer_ptr<osg::Group> _parentGroup; // Set by the DatabasePager to the node where the requested file will be inserted. NOTE: observer since prent can be dettached whilst DB thread is loading the object
};
}
#endif // OSGDB_OPTIONS