Panda3D
 All Classes Functions Variables Enumerations
loaderFileType.cxx
00001 // Filename: loaderFileType.cxx
00002 // Created by:  drose (20Jun00)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #include "loaderFileType.h"
00016 #include "loaderOptions.h"
00017 #include "config_pgraph.h"
00018 
00019 
00020 TypeHandle LoaderFileType::_type_handle;
00021 
00022 ////////////////////////////////////////////////////////////////////
00023 //     Function: LoaderFileType::Constructor
00024 //       Access: Protected
00025 //  Description:
00026 ////////////////////////////////////////////////////////////////////
00027 LoaderFileType::
00028 LoaderFileType() {
00029   // Derived LoaderFileType classes that return a different result
00030   // based on the setting of certain LoaderOptions flags (like
00031   // LF_convert_anim) should set those bits in the following bitmask,
00032   // so that we will not inadvertently cache a model without
00033   // respecting these flags.
00034   _no_cache_flags = 0;
00035 }
00036 
00037 ////////////////////////////////////////////////////////////////////
00038 //     Function: LoaderFileType::Destructor
00039 //       Access: Public, Virtual
00040 //  Description:
00041 ////////////////////////////////////////////////////////////////////
00042 LoaderFileType::
00043 ~LoaderFileType() {
00044 }
00045 
00046 ////////////////////////////////////////////////////////////////////
00047 //     Function: LoaderFileType::get_additional_extensions
00048 //       Access: Published, Virtual
00049 //  Description: Returns a space-separated list of extension, in
00050 //               addition to the one returned by get_extension(), that
00051 //               are recognized by this loader.
00052 ////////////////////////////////////////////////////////////////////
00053 string LoaderFileType::
00054 get_additional_extensions() const {
00055   return string();
00056 }
00057 
00058 ////////////////////////////////////////////////////////////////////
00059 //     Function: LoaderFileType::supports_compressed
00060 //       Access: Published, Virtual
00061 //  Description: Returns true if this file type can transparently load
00062 //               compressed files (with a .pz extension), false
00063 //               otherwise.
00064 ////////////////////////////////////////////////////////////////////
00065 bool LoaderFileType::
00066 supports_compressed() const {
00067   return false;
00068 }
00069 
00070 ////////////////////////////////////////////////////////////////////
00071 //     Function: LoaderFileType::get_allow_disk_cache
00072 //       Access: Published, Virtual
00073 //  Description: Returns true if the loader flags allow retrieving the
00074 //               model from the on-disk bam cache (if it is enabled),
00075 //               false otherwise.
00076 ////////////////////////////////////////////////////////////////////
00077 bool LoaderFileType::
00078 get_allow_disk_cache(const LoaderOptions &options) const {
00079   return (options.get_flags() & (LoaderOptions::LF_no_disk_cache | _no_cache_flags)) == 0;
00080 }
00081 
00082 ////////////////////////////////////////////////////////////////////
00083 //     Function: LoaderFileType::get_allow_ram_cache
00084 //       Access: Published
00085 //  Description: Returns true if the loader flags allow retrieving the
00086 //               model from the in-memory ModelPool cache, false
00087 //               otherwise.
00088 ////////////////////////////////////////////////////////////////////
00089 bool LoaderFileType::
00090 get_allow_ram_cache(const LoaderOptions &options) const {
00091   return (options.get_flags() & (LoaderOptions::LF_no_ram_cache | _no_cache_flags)) == 0;
00092 }
00093 
00094 ////////////////////////////////////////////////////////////////////
00095 //     Function: LoaderFileType::load_file
00096 //       Access: Public, Virtual
00097 //  Description:
00098 ////////////////////////////////////////////////////////////////////
00099 PT(PandaNode) LoaderFileType::
00100 load_file(const Filename &path, const LoaderOptions &options,
00101           BamCacheRecord *record) const {
00102   loader_cat.error()
00103     << get_type() << " cannot read PandaNode objects.\n";
00104   return NULL;
00105 }
 All Classes Functions Variables Enumerations