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fltTrans.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 fltTrans.cxx
10 * @author drose
11 * @date 2001-04-11
12 */
13
14#include "fltTrans.h"
15
16#include "fltHeader.h"
17
18/**
19 *
20 */
21FltTrans::
22FltTrans() :
23 WithOutputFile(true, false, true)
24{
25 // Indicate the extension name we expect the user to supply for output
26 // files.
27 _preferred_extension = ".flt";
28
29 set_program_brief("apply various operations to a MultiGen .flt file");
30 set_program_description
31 ("This program reads a MultiGen OpenFlight (.flt) file and writes an "
32 "essentially equivalent .flt file, to the file specified with -o (or "
33 "as the second parameter). Some simple operations may be performed.");
34
35 clear_runlines();
36 add_runline("[opts] input.flt output.flt");
37 add_runline("[opts] -o output.flt input.flt");
38
39 add_path_replace_options();
40 add_path_store_options();
41
42 add_option
43 ("v", "version", 0,
44 "Upgrade (or downgrade) the flt file to the indicated version. This "
45 "may not be completely correct for all version-to-version combinations.",
46 &FltTrans::dispatch_double, &_got_new_version, &_new_version);
47
48 add_option
49 ("o", "filename", 0,
50 "Specify the filename to which the resulting .flt file will be written. "
51 "If this option is omitted, the last parameter name is taken to be the "
52 "name of the output file.",
53 &FltTrans::dispatch_filename, &_got_output_filename, &_output_filename);
54}
55
56
57/**
58 *
59 */
60 void FltTrans::
61run() {
62 if (_got_new_version) {
63 int new_version = (int)floor(_new_version * 100.0 + 0.5);
64 if (new_version < FltHeader::min_flt_version() ||
65 new_version > FltHeader::max_flt_version()) {
66 nout << "Cannot write flt files of version " << new_version / 100.0
67 << ". This program only understands how to write flt files between version "
68 << FltHeader::min_flt_version() / 100.0 << " and "
69 << FltHeader::max_flt_version() / 100.0 << ".\n";
70 exit(1);
71 }
72 }
73
74 PT(FltHeader) header = new FltHeader(_path_replace);
75
76 nout << "Reading " << _input_filename << "\n";
77 FltError result = header->read_flt(_input_filename);
78 if (result != FE_ok) {
79 nout << "Unable to read: " << result << "\n";
80 exit(1);
81 }
82
83 if (header->check_version()) {
84 nout << "Version is " << header->get_flt_version() / 100.0 << "\n";
85 }
86
87 if (_got_new_version) {
88 int new_version = (int)floor(_new_version * 100.0 + 0.5);
89 header->set_flt_version(new_version);
90 }
91
92 header->apply_converted_filenames();
93
94 result = header->write_flt(get_output());
95 if (result != FE_ok) {
96 nout << "Unable to write: " << result << "\n";
97 exit(1);
98 }
99
100 nout << "Successfully written.\n";
101}
102
103
104/**
105 *
106 */
107 bool FltTrans::
108handle_args(ProgramBase::Args &args) {
109 if (!check_last_arg(args, 1)) {
110 return false;
111 }
112
113 if (args.empty()) {
114 nout << "You must specify the .flt file to read on the command line.\n";
115 return false;
116
117 } else if (args.size() != 1) {
118 nout << "You must specify only one .flt file to read on the command line.\n";
119 return false;
120 }
121
122 _input_filename = args[0];
123
124 return true;
125}
126
127
128 int main(int argc, char *argv[]) {
129 FltTrans prog;
130 prog.parse_command_line(argc, argv);
131 prog.run();
132 return 0;
133}
FltHeader::max_flt_version
static int max_flt_version()
Returns the latest flt version number that this codebase is known to support (times 100).
Definition fltHeader.cxx:345
FltHeader::min_flt_version
static int min_flt_version()
Returns the earliest flt version number that this codebase supports (times 100).
Definition fltHeader.cxx:335
FltTrans
A program to read a flt file and write an equivalent flt file, possibly performing some minor operati...
Definition fltTrans.h:26
ProgramBase::parse_command_line
virtual void parse_command_line(int argc, char **argv)
Dispatches on each of the options on the command line, and passes the remaining parameters to handle_...
Definition programBase.cxx:286
WithOutputFile
This is the bare functionality (intended to be inherited from along with ProgramBase or some derivati...
Definition withOutputFile.h:29
WithOutputFile::get_output
std::ostream & get_output()
Returns an output stream that corresponds to the user's intended egg file output–either stdout,...
Definition withOutputFile.cxx:50
fltHeader.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltTrans.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.