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colorWriteAttrib.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 colorWriteAttrib.h
10 * @author drose
11 * @date 2002-03-04
12 */
13
14#ifndef COLORWRITEATTRIB_H
15#define COLORWRITEATTRIB_H
16
17#include "pandabase.h"
18
19#include "renderAttrib.h"
20
21class FactoryParams;
22
23/**
24 * Enables or disables writing to the color buffer. This is primarily useful
25 * for certain special effects in which it is important to write to the depth
26 * buffer without affecting the color buffer.
27 */
28class EXPCL_PANDA_PGRAPH ColorWriteAttrib : public RenderAttrib {
29PUBLISHED:
30 enum Channels {
31 // By coincidence, these bits are the same as those for
32 // D3DCOLORWRITEENABLE_RED, _GREEN, _BLUE, and _ALPHA.
33 C_off = 0x000,
34 C_red = 0x001,
35 C_green = 0x002,
36 C_blue = 0x004,
37 C_rgb = 0x007, // == C_red | C_green | C_blue
38 C_alpha = 0x008,
39 C_all = 0x00f,
40 };
41
42private:
43 INLINE ColorWriteAttrib(unsigned int channels = C_all);
44
45PUBLISHED:
46 static CPT(RenderAttrib) make(unsigned int channels);
47 static CPT(RenderAttrib) make_default();
48
49 INLINE unsigned int get_channels() const;
50
51PUBLISHED:
52 MAKE_PROPERTY(channels, get_channels);
53
54public:
55 virtual void output(std::ostream &out) const;
56
57protected:
58 virtual int compare_to_impl(const RenderAttrib *other) const;
59 virtual size_t get_hash_impl() const;
60
61private:
62 int _channels;
63
64public:
65 static void register_with_read_factory();
66 virtual void write_datagram(BamWriter *manager, Datagram &dg);
67
68protected:
69 static TypedWritable *make_from_bam(const FactoryParams &params);
70 void fillin(DatagramIterator &scan, BamReader *manager);
71
72PUBLISHED:
73 static int get_class_slot() {
74 return _attrib_slot;
75 }
76 virtual int get_slot() const {
77 return get_class_slot();
78 }
79 MAKE_PROPERTY(class_slot, get_class_slot);
80
81public:
82 static TypeHandle get_class_type() {
83 return _type_handle;
84 }
85 static void init_type() {
86 RenderAttrib::init_type();
87 register_type(_type_handle, "ColorWriteAttrib",
88 RenderAttrib::get_class_type());
89 _attrib_slot = register_slot(_type_handle, 100, new ColorWriteAttrib);
90 }
91 virtual TypeHandle get_type() const {
92 return get_class_type();
93 }
94 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
95
96private:
97 static TypeHandle _type_handle;
98 static int _attrib_slot;
99};
100
101#include "colorWriteAttrib.I"
102
103#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
Enables or disables writing to the color buffer.
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...
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.
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.