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sourceTextureImage.h
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1/**
2 * PANDA 3D SOFTWARE
3 * Copyright (c) Carnegie Mellon University. All rights reserved.
4 *
5 * All use of this software is subject to the terms of the revised BSD
6 * license. You should have received a copy of this license along
7 * with this source code in a file named "LICENSE."
8 *
9 * @file sourceTextureImage.h
10 * @author drose
11 * @date 2000-11-28
12 */
13
14#ifndef SOURCETEXTUREIMAGE_H
15#define SOURCETEXTUREIMAGE_H
16
17#include "pandatoolbase.h"
18
19#include "imageFile.h"
20
21class TextureImage;
22class PNMImageHeader;
23
24/**
25 * This is a texture image reference as it appears in an egg file: the source
26 * image of the texture.
27 */
29private:
31
32public:
33 SourceTextureImage(TextureImage *texture, const Filename &filename,
34 const Filename &alpha_filename, int alpha_file_channel);
35
37
39 int get_egg_count() const;
40
41 bool get_size();
42 bool read_header();
43 void set_header(const PNMImageHeader &header);
44
45private:
46 TextureImage *_texture;
47 int _egg_count;
48 bool _read_header;
49 bool _successfully_read_header;
50
51 // The TypedWritable interface follows.
52public:
53 static void register_with_read_factory();
54 virtual void write_datagram(BamWriter *writer, Datagram &datagram);
55 virtual int complete_pointers(TypedWritable **p_list,
56 BamReader *manager);
57
58protected:
59 static TypedWritable *make_SourceTextureImage(const FactoryParams &params);
60 void fillin(DatagramIterator &scan, BamReader *manager);
61
62public:
63 static TypeHandle get_class_type() {
64 return _type_handle;
65 }
66 static void init_type() {
67 ImageFile::init_type();
68 register_type(_type_handle, "SourceTextureImage",
69 ImageFile::get_class_type());
70 }
71 virtual TypeHandle get_type() const {
72 return get_class_type();
73 }
74
75private:
76 static TypeHandle _type_handle;
77};
78
79INLINE std::ostream &
80operator << (std::ostream &out, const SourceTextureImage &source) {
81 source.output_filename(out);
82 return out;
83}
84
85#endif
This is the fundamental interface for extracting binary objects from a Bam file, as generated by a Ba...
Definition bamReader.h:110
This is the fundamental interface for writing binary objects to a Bam file, to be extracted later by ...
Definition bamWriter.h:63
A class to retrieve the individual data elements previously stored in a Datagram.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
An instance of this class is passed to the Factory when requesting it to do its business and construc...
The name of a file, such as a texture file or an Egg file.
Definition filename.h:44
This is the base class of both TextureImage and PaletteImage.
Definition imageFile.h:33
void output_filename(std::ostream &out) const
Writes the filename (or pair of filenames) to the indicated output stream.
This is the base class of PNMImage, PNMReader, and PNMWriter.
This is a texture image reference as it appears in an egg file: the source image of the texture.
bool get_size()
Determines the size of the SourceTextureImage, if it is not already known.
virtual void write_datagram(BamWriter *writer, Datagram &datagram)
Fills the indicated datagram up with a binary representation of the current object,...
static void register_with_read_factory()
Registers the current object as something that can be read from a Bam file.
bool read_header()
Reads the actual image header to determine the image properties, like its size.
void increment_egg_count()
Increments by one the number of egg files that are known to reference this SourceTextureImage.
virtual int complete_pointers(TypedWritable **p_list, BamReader *manager)
Called after the object is otherwise completely read from a Bam file, this function's job is to store...
TextureImage * get_texture() const
Returns the particular texture that this image is one of the sources for.
void set_header(const PNMImageHeader &header)
Sets the header information associated with this image, as if it were loaded from the disk.
int get_egg_count() const
Returns the number of egg files that share this SourceTextureImage.
This represents a single source texture that is referenced by one or more egg files.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
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.
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...