Panda3D
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logicOpAttrib.h
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 logicOpAttrib.I
10 * @author rdb
11 * @date 2016-03-24
12 */
13
14#ifndef LOGICOPATTRIB_H
15#define LOGICOPATTRIB_H
16
17#include "pandabase.h"
18#include "luse.h"
19#include "renderAttrib.h"
20
21class FactoryParams;
22
23/**
24 * If enabled, specifies that a custom logical operation be performed instead
25 * of any color blending. Setting it to a value other than M_none will cause
26 * color blending to be disabled and the given logic operation to be performed.
27 *
28 * @since 1.10.0
29 */
30class EXPCL_PANDA_PGRAPH LogicOpAttrib : public RenderAttrib {
31PUBLISHED:
32 enum Operation {
33 O_none, // LogicOp disabled, regular blending occurs.
34 O_clear, // Clears framebuffer value.
35 O_and,
36 O_and_reverse,
37 O_copy, // Writes the incoming color to the framebuffer.
38 O_and_inverted,
39 O_noop, // Leaves the framebuffer value unaltered.
40 O_xor,
41 O_or,
42 O_nor,
43 O_equivalent,
44 O_invert,
45 O_or_reverse,
46 O_copy_inverted,
47 O_or_inverted,
48 O_nand,
49 O_set, // Sets all the bits in the framebuffer to 1.
50 };
51
52private:
53 INLINE LogicOpAttrib(Operation op);
54
55PUBLISHED:
56 static CPT(RenderAttrib) make_off();
57 static CPT(RenderAttrib) make(Operation op);
58 static CPT(RenderAttrib) make_default();
59
60 INLINE Operation get_operation() const;
61 MAKE_PROPERTY(operation, get_operation);
62
63public:
64 virtual void output(std::ostream &out) const;
65
66protected:
67 virtual int compare_to_impl(const RenderAttrib *other) const;
68 virtual size_t get_hash_impl() const;
69
70private:
71 Operation _op;
72
73PUBLISHED:
74 static int get_class_slot() {
75 return _attrib_slot;
76 }
77 virtual int get_slot() const {
78 return get_class_slot();
79 }
80 MAKE_PROPERTY(class_slot, get_class_slot);
81
82public:
83 static void register_with_read_factory();
84 virtual void write_datagram(BamWriter *manager, Datagram &dg);
85
86protected:
87 static TypedWritable *make_from_bam(const FactoryParams &params);
88 void fillin(DatagramIterator &scan, BamReader *manager);
89
90public:
91 static TypeHandle get_class_type() {
92 return _type_handle;
93 }
94 static void init_type() {
95 RenderAttrib::init_type();
96 register_type(_type_handle, "LogicOpAttrib",
97 RenderAttrib::get_class_type());
98 _attrib_slot = register_slot(_type_handle, 100, new LogicOpAttrib(O_none));
99 }
100 virtual TypeHandle get_type() const {
101 return get_class_type();
102 }
103 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
104
105private:
106 static TypeHandle _type_handle;
107 static int _attrib_slot;
108};
109
110EXPCL_PANDA_PGRAPH std::ostream &operator << (std::ostream &out, LogicOpAttrib::Operation op);
111
112#include "logicOpAttrib.I"
113
114#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...
If enabled, specifies that a custom logical operation be performed instead of any color blending.
This is the base class for a number of render attributes (other than transform) that may be set on sc...
virtual void write_datagram(BamWriter *manager, Datagram &dg)
Writes the contents of this object to the datagram for shipping out to a Bam file.
static int register_slot(TypeHandle type_handle, int sort, RenderAttrib *default_attrib)
Adds the indicated TypeHandle to the registry, if it is not there already, and returns a unique slot ...
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.
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.