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fltMaterial.cxx
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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 fltMaterial.cxx
10 * @author drose
11 * @date 2000-08-25
12 */
13
14#include "fltMaterial.h"
15#include "fltRecordReader.h"
16#include "fltRecordWriter.h"
17
18TypeHandle FltMaterial::_type_handle;
19
20/**
21 *
22 */
23FltMaterial::
24FltMaterial(FltHeader *header) : FltRecord(header) {
25 _material_index = -1;
26 _flags = 0;
27 _ambient.set(0.0, 0.0, 0.0);
28 _diffuse.set(0.0, 0.0, 0.0);
29 _specular.set(0.0, 0.0, 0.0);
30 _emissive.set(0.0, 0.0, 0.0);
31 _shininess = 0.0;
32 _alpha = 1.0;
33}
34
35/**
36 * Fills in the information in this record based on the information given in
37 * the indicated datagram, whose opcode has already been read. Returns true
38 * on success, false if the datagram is invalid.
39 */
40bool FltMaterial::
41extract_record(FltRecordReader &reader) {
42 if (!FltRecord::extract_record(reader)) {
43 return false;
44 }
45
46 nassertr(reader.get_opcode() == FO_15_material, false);
47 DatagramIterator &iterator = reader.get_iterator();
48
49 _material_index = iterator.get_be_int32();
50 _material_name = iterator.get_fixed_string(12);
51 _flags = iterator.get_be_uint32();
52 _ambient[0] = iterator.get_be_float32();
53 _ambient[1] = iterator.get_be_float32();
54 _ambient[2] = iterator.get_be_float32();
55 _diffuse[0] = iterator.get_be_float32();
56 _diffuse[1] = iterator.get_be_float32();
57 _diffuse[2] = iterator.get_be_float32();
58 _specular[0] = iterator.get_be_float32();
59 _specular[1] = iterator.get_be_float32();
60 _specular[2] = iterator.get_be_float32();
61 _emissive[0] = iterator.get_be_float32();
62 _emissive[1] = iterator.get_be_float32();
63 _emissive[2] = iterator.get_be_float32();
64 _shininess = iterator.get_be_float32();
65 _alpha = iterator.get_be_float32();
66 iterator.skip_bytes(4);
67
68 check_remaining_size(iterator);
69 return true;
70}
71
72/**
73 * Fills up the current record on the FltRecordWriter with data for this
74 * record, but does not advance the writer. Returns true on success, false if
75 * there is some error.
76 */
77bool FltMaterial::
78build_record(FltRecordWriter &writer) const {
79 if (!FltRecord::build_record(writer)) {
80 return false;
81 }
82
83 writer.set_opcode(FO_15_material);
84 Datagram &datagram = writer.update_datagram();
85
86 datagram.add_be_int32(_material_index);
87 datagram.add_fixed_string(_material_name, 12);
88 datagram.add_be_uint32(_flags);
89 datagram.add_be_float32(_ambient[0]);
90 datagram.add_be_float32(_ambient[1]);
91 datagram.add_be_float32(_ambient[2]);
92 datagram.add_be_float32(_diffuse[0]);
93 datagram.add_be_float32(_diffuse[1]);
94 datagram.add_be_float32(_diffuse[2]);
95 datagram.add_be_float32(_specular[0]);
96 datagram.add_be_float32(_specular[1]);
97 datagram.add_be_float32(_specular[2]);
98 datagram.add_be_float32(_emissive[0]);
99 datagram.add_be_float32(_emissive[1]);
100 datagram.add_be_float32(_emissive[2]);
101 datagram.add_be_float32(_shininess);
102 datagram.add_be_float32(_alpha);
103 datagram.pad_bytes(4);
104
105 return true;
106}
107
108/**
109 * Fills in the information in this record based on the information from the
110 * current position within the v14 material palette. Leaves the iterator at
111 * the beginning of the next material.
112 */
114extract_14_record(int index, DatagramIterator &di) {
115 _material_index = index;
116
117 _ambient[0] = di.get_be_float32();
118 _ambient[1] = di.get_be_float32();
119 _ambient[2] = di.get_be_float32();
120 _diffuse[0] = di.get_be_float32();
121 _diffuse[1] = di.get_be_float32();
122 _diffuse[2] = di.get_be_float32();
123 _specular[0] = di.get_be_float32();
124 _specular[1] = di.get_be_float32();
125 _specular[2] = di.get_be_float32();
126 _emissive[0] = di.get_be_float32();
127 _emissive[1] = di.get_be_float32();
128 _emissive[2] = di.get_be_float32();
129 _shininess = di.get_be_float32();
130 _alpha = di.get_be_float32();
131 _flags = di.get_be_uint32();
132 _material_name = di.get_fixed_string(12);
133 di.skip_bytes(4 * 28);
134
135 return true;
136}
137
138/**
139 * Fills up the current record on the FltRecordWriter with data for this
140 * record, formatted as a part of a v14 material palette. Returns true on
141 * success, false if there is some error.
142 */
144build_14_record(Datagram &datagram) {
145 datagram.add_be_float32(_ambient[0]);
146 datagram.add_be_float32(_ambient[1]);
147 datagram.add_be_float32(_ambient[2]);
148 datagram.add_be_float32(_diffuse[0]);
149 datagram.add_be_float32(_diffuse[1]);
150 datagram.add_be_float32(_diffuse[2]);
151 datagram.add_be_float32(_specular[0]);
152 datagram.add_be_float32(_specular[1]);
153 datagram.add_be_float32(_specular[2]);
154 datagram.add_be_float32(_emissive[0]);
155 datagram.add_be_float32(_emissive[1]);
156 datagram.add_be_float32(_emissive[2]);
157 datagram.add_be_float32(_shininess);
158 datagram.add_be_float32(_alpha);
159 datagram.add_be_uint32(_flags);
160 datagram.add_fixed_string(_material_name, 12);
161 datagram.pad_bytes(4 * 28);
162
163 return true;
164}
A class to retrieve the individual data elements previously stored in a Datagram.
void skip_bytes(size_t size)
Skips over the indicated number of bytes in the datagram.
uint32_t get_be_uint32()
Extracts an unsigned 32-bit big-endian integer.
int32_t get_be_int32()
Extracts a signed 32-bit big-endian integer.
PN_float32 get_be_float32()
Extracts a 32-bit big-endian single-precision floating-point number.
std::string get_fixed_string(size_t size)
Extracts a fixed-length string.
An ordered list of data elements, formatted in memory for transmission over a socket or writing to a ...
Definition datagram.h:38
void add_be_uint32(uint32_t value)
Adds an unsigned 32-bit big-endian integer to the datagram.
Definition datagram.I:181
void add_be_int32(int32_t value)
Adds a signed 32-bit big-endian integer to the datagram.
Definition datagram.I:154
void add_be_float32(PN_float32 value)
Adds a 32-bit single-precision big-endian floating-point number to the datagram.
Definition datagram.I:200
void add_fixed_string(const std::string &str, size_t size)
Adds a fixed-length string to the datagram.
Definition datagram.I:263
void pad_bytes(size_t size)
Adds the indicated number of zero bytes to the datagram.
Definition datagram.cxx:99
This is the first bead in the file, the top of the bead hierarchy, and the primary interface to readi...
Definition fltHeader.h:44
bool build_14_record(Datagram &datagram)
Fills up the current record on the FltRecordWriter with data for this record, formatted as a part of ...
bool extract_14_record(int index, DatagramIterator &di)
Fills in the information in this record based on the information from the current position within the...
This class turns an istream into a sequence of FltRecords by reading a sequence of Datagrams and extr...
FltOpcode get_opcode() const
Returns the opcode associated with the current record.
DatagramIterator & get_iterator()
Returns an iterator suitable for extracting data from the current record.
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
void set_opcode(FltOpcode opcode)
Sets the opcode associated with the current record.
Datagram & update_datagram()
Returns a modifiable reference to the datagram associated with the current record.
The base class for all kinds of records in a MultiGen OpenFlight file.
Definition fltRecord.h:36
void check_remaining_size(const DatagramIterator &di, const std::string &name=std::string()) const
Checks that the iterator has no bytes left, as it should at the end of a successfully read record.
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.