Panda3D
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textureContext.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 textureContext.h
10 * @author drose
11 * @date 1999-10-07
12 */
13
14#ifndef TEXTURECONTEXT_H
15#define TEXTURECONTEXT_H
16
17#include "pandabase.h"
18
19#include "bufferContext.h"
20#include "texture.h"
22#include "adaptiveLru.h"
23
24/**
25 * This is a special class object that holds all the information returned by a
26 * particular GSG to indicate the texture's internal context identifier.
27 *
28 * Textures typically have an immediate-mode and a retained-mode operation.
29 * When using textures in retained-mode (in response to Texture::prepare()),
30 * the GSG will create some internal handle for the texture and store it here.
31 * The texture stores all of these handles internally.
32 */
33class EXPCL_PANDA_GOBJ TextureContext : public BufferContext, public AdaptiveLruPage {
34public:
35 INLINE TextureContext(PreparedGraphicsObjects *pgo, Texture *tex, int view);
36
37PUBLISHED:
38 INLINE Texture *get_texture() const;
39 INLINE int get_view() const;
40 virtual uint64_t get_native_id() const;
41 virtual uint64_t get_native_buffer_id() const;
42
43 INLINE bool was_modified() const;
44 INLINE bool was_properties_modified() const;
45 INLINE bool was_image_modified() const;
46 INLINE bool was_simple_image_modified() const;
47
48 INLINE UpdateSeq get_properties_modified() const;
49 INLINE UpdateSeq get_image_modified() const;
50 INLINE UpdateSeq get_simple_image_modified() const;
51
52public:
53 INLINE void update_data_size_bytes(size_t new_data_size_bytes);
54 INLINE void mark_loaded();
55 INLINE void mark_simple_loaded();
56 INLINE void mark_unloaded();
57 INLINE void mark_needs_reload();
58
59 virtual void output(std::ostream &out) const;
60 virtual void write(std::ostream &out, int indent_level) const;
61
62private:
63 int _view;
64 UpdateSeq _properties_modified;
65 UpdateSeq _image_modified;
66 UpdateSeq _simple_image_modified;
67
68public:
69 static TypeHandle get_class_type() {
70 return _type_handle;
71 }
72 static void init_type() {
73 BufferContext::init_type();
74 register_type(_type_handle, "TextureContext",
75 BufferContext::get_class_type());
76 }
77 virtual TypeHandle get_type() const {
78 return get_class_type();
79 }
80 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
81
82private:
83 static TypeHandle _type_handle;
84
85 friend class PreparedGraphicsObjects;
86};
87
88inline std::ostream &operator << (std::ostream &out, const TextureContext &context) {
89 context.output(out);
90 return out;
91}
92
93#include "textureContext.I"
94
95#endif
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
One atomic piece that may be managed by a AdaptiveLru chain.
This is a base class for those kinds of SavedContexts that occupy an easily-measured (and substantial...
void update_data_size_bytes(size_t new_data_size_bytes)
Should be called (usually by a derived class) when the on-card size of this object has changed.
A table of objects that are saved within the graphics context for reference by handle later.
This is a special class object that holds all the information returned by a particular GSG to indicat...
Represents a texture object, which is typically a single 2-d image but may also represent a 1-d or 3-...
Definition texture.h:72
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
This is a sequence number that increments monotonically.
Definition updateSeq.h:37
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(),...
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.