26 static const char *
const extensions_sgi[] = {
29 static const int num_extensions_sgi =
sizeof(extensions_sgi) /
sizeof(
const char *);
43 string PNMFileTypeSGI::
53 get_num_extensions()
const {
54 return num_extensions_sgi;
61 string PNMFileTypeSGI::
62 get_extension(
int n)
const {
63 nassertr(n >= 0 && n < num_extensions_sgi,
string());
64 return extensions_sgi[n];
71 string PNMFileTypeSGI::
72 get_suggested_extension()
const {
81 has_magic_number()
const {
91 matches_magic_number(
const string &magic_number)
const {
92 nassertr(magic_number.size() >= 2,
false);
94 ((
unsigned char)magic_number[0] << 8) |
95 ((
unsigned char)magic_number[1]);
96 return (mn == SGI_MAGIC);
105 make_reader(std::istream *file,
bool owns_file,
const string &magic_number) {
107 return new Reader(
this, file, owns_file, magic_number);
116 make_writer(std::ostream *file,
bool owns_file) {
118 return new Writer(
this, file, owns_file);
125 void PNMFileTypeSGI::
126 register_with_read_factory() {
128 register_factory(get_class_type(), make_PNMFileTypeSGI);
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
static WritableFactory * get_factory()
Returns the global WritableFactory for generating TypedWritable objects.
An instance of this class is passed to the Factory when requesting it to do its business and construc...
PNMFileType * get_type_by_handle(TypeHandle handle) const
Returns the PNMFileType instance stored in the registry for the given TypeHandle, e....
static PNMFileTypeRegistry * get_global_ptr()
Returns a pointer to the global PNMFileTypeRegistry object.
This is an abstract base class that defines the interface for reading image files of various types.
This is an abstract base class that defines the interface for writing image files of various types.
TypeHandle is the identifier used to differentiate C++ class types.
Base class for objects that can be written to and read from Bam files.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.