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fltHeader.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 fltHeader.h
10 * @author drose
11 * @date 2000-08-24
12 */
13
14#ifndef FLTHEADER_H
15#define FLTHEADER_H
16
17#include "pandatoolbase.h"
18
19#include "fltBeadID.h"
20#include "fltVertex.h"
21#include "fltMaterial.h"
22#include "fltTexture.h"
23#include "fltLightSourceDefinition.h"
24#include "fltEyepoint.h"
25#include "fltTrackplane.h"
26#include "fltInstanceDefinition.h"
27
28#include "pathReplace.h"
29#include "pointerTo.h"
30#include "filename.h"
31#include "dSearchPath.h"
32#include "distanceUnit.h"
33#include "pvector.h"
34#include "pset.h"
35#include "pmap.h"
36
37/**
38 * This is the first bead in the file, the top of the bead hierarchy, and the
39 * primary interface to reading and writing a Flt file. You always read a Flt
40 * file by creating a header and calling read_flt(), which fills in its
41 * children beads automatically; you write a Flt file by creating a header,
42 * adding its children, and calling write_flt().
43 */
44 class FltHeader : public FltBeadID {
45 public:
46 FltHeader(PathReplace *path_replace);
47
48 virtual void apply_converted_filenames();
49
50 void set_path_replace(PathReplace *path_replace);
51 PathReplace *get_path_replace();
52 const PathReplace *get_path_replace() const;
53 Filename convert_path(const Filename &orig_filename,
54 const DSearchPath &additional_path = DSearchPath());
55
56 void set_flt_filename(const Filename &flt_filename);
57 const Filename &get_flt_filename() const;
58
59 FltError read_flt(Filename filename);
60 FltError read_flt(std::istream &in);
61 FltError write_flt(Filename filename);
62 FltError write_flt(std::ostream &out);
63
64 enum AttrUpdate {
65 AU_none,
66 AU_if_missing,
67 AU_always
68 };
69
70 void set_auto_attr_update(AttrUpdate attr);
71 AttrUpdate get_auto_attr_update() const;
72
73 enum Units {
74 U_meters = 0,
75 U_kilometers = 1,
76 U_feet = 4,
77 U_inches = 5,
78 U_nautical_miles = 8
79 };
80
81 enum Flags {
82 F_save_vertex_normals = 0x80000000
83 };
84
85 enum ProjectionType {
86 PT_flat_earth = 0,
87 PT_trapezoidal = 1,
88 PT_round_earth = 2,
89 PT_lambert = 3,
90 PT_utm = 4
91 };
92
93 enum VertexStorageType {
94 VTS_double = 1
95 };
96
97 enum DatabaseOrigin {
98 DO_open_flight = 100,
99 DO_dig = 200,
100 DO_es_ct6 = 300,
101 DO_psp = 400,
102 DO_ge_civ = 600,
103 DO_es_gdf = 700,
104 };
105
106 enum EarthModel {
107 EM_wgs84 = 0,
108 EM_wgs72 = 1,
109 EM_bessel = 2,
110 EM_clarke_1866 = 3,
111 EM_nad27 = 4
112 };
113
114 int _format_revision_level;
115 int _edit_revision_level;
116 std::string _last_revision;
117 int _next_group_id;
118 int _next_lod_id;
119 int _next_object_id;
120 int _next_face_id;
121 int _unit_multiplier;
122 Units _vertex_units;
123 bool _texwhite_new;
124 unsigned int _flags;
125 ProjectionType _projection_type;
126 int _next_dof_id;
127 VertexStorageType _vertex_storage_type;
128 DatabaseOrigin _database_origin;
129 double _sw_x, _sw_y;
130 double _delta_x, _delta_y;
131 int _next_sound_id;
132 int _next_path_id;
133 int _next_clip_id;
134 int _next_text_id;
135 int _next_bsp_id;
136 int _next_switch_id;
137 double _sw_lat, _sw_long;
138 double _ne_lat, _ne_long;
139 double _origin_lat, _origin_long;
140 double _lambert_upper_lat, _lambert_lower_lat;
141 int _next_light_id;
142 int _next_road_id;
143 int _next_cat_id;
144 EarthModel _earth_model;
145 int _next_adaptive_id;
146 int _next_curve_id;
147 double _delta_z;
148 double _radius;
149 int _next_mesh_id;
150
151 public:
152 int get_flt_version() const;
153 void set_flt_version(int version);
154 static int min_flt_version();
155 static int max_flt_version();
156 bool check_version() const;
157
158 DistanceUnit get_units() const;
159
160 // Accessors into the instance pool.
161 bool has_instance(int instance_index) const;
162 FltInstanceDefinition *get_instance(int instance_index) const;
163 void clear_instances();
164 void add_instance(FltInstanceDefinition *instance);
165 void remove_instance(int instance_index);
166
167
168 // Accessors into the vertex palette.
169 int get_num_vertices() const;
170 FltVertex *get_vertex(int n) const;
171 void clear_vertices();
172 void add_vertex(FltVertex *vertex);
173
174 FltVertex *get_vertex_by_offset(int offset);
175 int get_offset_by_vertex(FltVertex *vertex);
176
177
178 // Accessors into the color palette. This is read-only; why would you want
179 // to mess with building a new color palette?
180 int get_num_colors() const;
181 LColor get_color(int color_index) const;
182 LRGBColor get_rgb(int color_index) const;
183 bool has_color_name(int color_index) const;
184 std::string get_color_name(int color_index) const;
185
186 int get_closest_color(const LColor &color) const;
187 int get_closest_rgb(const LRGBColor &color) const;
188
189 int get_num_color_entries() const;
190 int get_num_color_shades() const;
191
192 // These functions are mainly used behind-the-scenes to decode the strange
193 // forest of color options defined for faces and vertices.
194 LColor get_color(int color_index, bool use_packed_color,
195 const FltPackedColor &packed_color,
196 int transparency);
197 LRGBColor get_rgb(int color_index, bool use_packed_color,
198 const FltPackedColor &packed_color);
199
200 // Accessors into the material palette.
201 bool has_material(int material_index) const;
202 FltMaterial *get_material(int material_index) const;
203 void clear_materials();
204 void add_material(FltMaterial *material);
205 void remove_material(int material_index);
206
207
208 // Accessors into the texture palette.
209 bool has_texture(int texture_index) const;
210 FltTexture *get_texture(int texture_index) const;
211 void clear_textures();
212 void add_texture(FltTexture *texture);
213 void remove_texture(int texture_index);
214
215
216 // Accessors into the light source palette.
217 bool has_light_source(int light_index) const;
218 FltLightSourceDefinition *get_light_source(int light_index) const;
219 void clear_light_sources();
220 void add_light_source(FltLightSourceDefinition *light_source);
221 void remove_light_source(int light_index);
222
223
224 // Accessors into the eyepointtrackplane palette.
225 bool got_eyepoint_trackplane_palette() const;
226 void set_eyepoint_trackplane_palette(bool flag);
227
228 int get_num_eyepoints() const;
229 FltEyepoint *get_eyepoint(int n);
230 int get_num_trackplanes() const;
231 FltTrackplane *get_trackplane(int n);
232
233 private:
234 // Instance subtrees. These are standalone subtrees, which may be
235 // referenced by various points in the hierarchy, stored by instance ID
236 // number.
237 typedef pmap<int, PT(FltInstanceDefinition)> Instances;
238 Instances _instances;
239
240
241 // Support for the vertex palette.
242 int update_vertex_lookups();
243
244 typedef pvector<PT(FltVertex)> Vertices;
245 typedef pset<FltVertex *> UniqueVertices;
246
247 typedef pmap<int, FltVertex *> VerticesByOffset;
248 typedef pmap<FltVertex *, int> OffsetsByVertex;
249
250 Vertices _vertices;
251 UniqueVertices _unique_vertices;
252 VerticesByOffset _vertices_by_offset;
253 OffsetsByVertex _offsets_by_vertex;
254
255 bool _vertex_lookups_stale;
256
257 // This is maintained while the header is being read, to map the vertices to
258 // their corresponding offsets in the vertex palette.
259 int _current_vertex_offset;
260
261
262 // Support for the color palette.
263 bool _got_color_palette;
264 typedef pvector<FltPackedColor> Colors;
265 typedef pmap<int, std::string> ColorNames;
266 Colors _colors;
267 ColorNames _color_names;
268
269
270 // Support for the material palette.
271 bool _got_14_material_palette;
272 typedef pmap<int, PT(FltMaterial)> Materials;
273 Materials _materials;
274 int _next_material_index;
275
276
277 // Support for the texture palette.
278 AttrUpdate _auto_attr_update;
279 typedef pmap<int, PT(FltTexture)> Textures;
280 Textures _textures;
281 int _next_pattern_index;
282
283
284 // Support for the light source palette.
285 typedef pmap<int, PT(FltLightSourceDefinition)> LightSources;
286 LightSources _light_sources;
287
288
289 // Support for the eyepointtrackplane palette.
290 bool _got_eyepoint_trackplane_palette;
291 FltEyepoint _eyepoints[10];
292 FltTrackplane _trackplanes[10];
293
294 // This pointer is used to resolve references in the flt file.
295 PT(PathReplace) _path_replace;
296 Filename _flt_filename;
297
298 protected:
299 virtual bool extract_record(FltRecordReader &reader);
300 virtual bool extract_ancillary(FltRecordReader &reader);
301
302 virtual bool build_record(FltRecordWriter &writer) const;
303 virtual FltError write_ancillary(FltRecordWriter &writer) const;
304
305 private:
306 bool extract_vertex(FltRecordReader &reader);
307 bool extract_color_palette(FltRecordReader &reader);
308 bool extract_material(FltRecordReader &reader);
309 bool extract_14_material_palette(FltRecordReader &reader);
310 bool extract_texture(FltRecordReader &reader);
311 bool extract_texture_map(FltRecordReader &reader);
312 bool extract_light_source(FltRecordReader &reader);
313 bool extract_eyepoint_palette(FltRecordReader &reader);
314
315 FltError write_vertex_palette(FltRecordWriter &writer) const;
316 FltError write_color_palette(FltRecordWriter &writer) const;
317 FltError write_material_palette(FltRecordWriter &writer) const;
318 FltError write_texture_palette(FltRecordWriter &writer) const;
319 FltError write_light_source_palette(FltRecordWriter &writer) const;
320 FltError write_eyepoint_palette(FltRecordWriter &writer) const;
321
322 public:
323 virtual TypeHandle get_type() const {
324 return get_class_type();
325 }
326 virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
327 static TypeHandle get_class_type() {
328 return _type_handle;
329 }
330 static void init_type() {
331 FltBeadID::init_type();
332 register_type(_type_handle, "FltHeader",
333 FltBeadID::get_class_type());
334 }
335
336 private:
337 static TypeHandle _type_handle;
338};
339
340#endif
DSearchPath
This class stores a list of directories that can be searched, in order, to locate a particular file.
Definition dSearchPath.h:28
Filename
The name of a file, such as a texture file or an Egg file.
Definition filename.h:44
FltEyepoint
A single eyepoint entry in the eyepoint/trackplane palette.
Definition fltEyepoint.h:27
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::add_material
void add_material(FltMaterial *material)
Defines a new material.
Definition fltHeader.cxx:830
FltHeader::get_units
DistanceUnit get_units() const
Returns the units indicated by the flt header, or DU_invalid if the units in the header are not under...
Definition fltHeader.cxx:387
FltHeader::get_num_color_shades
int get_num_color_shades() const
Returns the number of shades of brightness of each entry in the color palette.
Definition fltHeader.cxx:748
FltHeader::get_offset_by_vertex
int get_offset_by_vertex(FltVertex *vertex)
Returns the byte offset into the vertex palette associated with the given vertex pointer.
Definition fltHeader.cxx:526
FltHeader::add_instance
void add_instance(FltInstanceDefinition *instance)
Defines a new instance subtree.
Definition fltHeader.cxx:445
FltHeader::get_num_eyepoints
int get_num_eyepoints() const
Returns the number of eyepoints in the eyepoint/trackplane palette.
Definition fltHeader.cxx:987
FltHeader::get_material
FltMaterial * get_material(int material_index) const
Returns the material associated with the given index, or NULL if there is no such material.
Definition fltHeader.cxx:807
FltHeader::has_texture
bool has_texture(int texture_index) const
Returns true if a texture with the given index has been defined.
Definition fltHeader.cxx:857
FltHeader::get_flt_filename
const Filename & get_flt_filename() const
Returns the directory in which the flt file is considered to reside.
Definition fltHeader.cxx:179
FltHeader::apply_converted_filenames
virtual void apply_converted_filenames()
Walks the hierarchy at this record and below and copies the _converted_filename record into the _orig...
Definition fltHeader.cxx:113
FltHeader::get_eyepoint
FltEyepoint * get_eyepoint(int n)
Returns the nth eyepoint in the eyepoint/trackplane palette.
Definition fltHeader.cxx:995
FltHeader::get_flt_version
int get_flt_version() const
Returns the version number of the flt file as reported in the header, times 100.
Definition fltHeader.cxx:309
FltHeader::has_light_source
bool has_light_source(int light_index) const
Returns true if a light source with the given index has been defined.
Definition fltHeader.cxx:916
FltHeader::get_num_color_entries
int get_num_color_entries() const
Returns the number of actual entries in the color palette.
Definition fltHeader.cxx:738
FltHeader::add_vertex
void add_vertex(FltVertex *vertex)
Adds a new vertex to the end of the vertex palette.
Definition fltHeader.cxx:491
FltHeader::get_auto_attr_update
AttrUpdate get_auto_attr_update() const
Returns the current setting of the auto_attr_update flag.
Definition fltHeader.cxx:300
FltHeader::set_auto_attr_update
void set_auto_attr_update(AttrUpdate attr)
Controls whether texture .attr files are written automatically when write_flt() is called.
Definition fltHeader.cxx:291
FltHeader::set_flt_filename
void set_flt_filename(const Filename &flt_filename)
Sets the filename–especially the directory part–in which the flt file is considered to reside.
Definition fltHeader.cxx:171
FltHeader::set_path_replace
void set_path_replace(PathReplace *path_replace)
Replaces the PathReplace object (which specifies how to mangle paths from the source to the destinati...
Definition fltHeader.cxx:128
FltHeader::add_texture
void add_texture(FltTexture *texture)
Defines a new texture.
Definition fltHeader.cxx:889
FltHeader::set_flt_version
void set_flt_version(int version)
Changes the version number of the flt file that will be reported in the header.
Definition fltHeader.cxx:322
FltHeader::check_version
bool check_version() const
Verifies that the version number read from the header is an understood version number,...
Definition fltHeader.cxx:357
FltHeader::get_color_name
std::string get_color_name(int color_index) const
Returns the name associated with the given color, if any.
Definition fltHeader.cxx:604
FltHeader::read_flt
FltError read_flt(Filename filename)
Opens the indicated filename for reading and attempts to read the complete Flt file.
Definition fltHeader.cxx:188
FltHeader::FltHeader
FltHeader(PathReplace *path_replace)
The FltHeader constructor accepts a PathReplace pointer; it uses this object to automatically convert...
Definition fltHeader.cxx:39
FltHeader::get_vertex_by_offset
FltVertex * get_vertex_by_offset(int offset)
Returns the particular vertex pointer associated with the given byte offset into the vertex palette.
Definition fltHeader.cxx:506
FltHeader::has_color_name
bool has_color_name(int color_index) const
Returns true if the given color is named, false otherwise.
Definition fltHeader.cxx:596
FltHeader::get_color
LColor get_color(int color_index) const
Returns the four-component color corresponding to the given color index.
Definition fltHeader.cxx:559
FltHeader::get_vertex
FltVertex * get_vertex(int n) const
Returns the nth vertex of the vertex palette.
Definition fltHeader.cxx:469
FltHeader::get_rgb
LRGBColor get_rgb(int color_index) const
Returns the three-component color corresponding to the given color index, ignoring the alpha componen...
Definition fltHeader.cxx:578
FltHeader::remove_instance
void remove_instance(int instance_index)
Removes a particular instance subtree from the pool, if it exists.
Definition fltHeader.cxx:453
FltHeader::clear_instances
void clear_instances()
Removes all instance subtrees from the instance pool.
Definition fltHeader.cxx:435
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
FltHeader::get_trackplane
FltTrackplane * get_trackplane(int n)
Returns the nth trackplane in the eyepoint/trackplane palette.
Definition fltHeader.cxx:1013
FltHeader::remove_light_source
void remove_light_source(int light_index)
Removes a particular light source from the light source palette, if it exists.
Definition fltHeader.cxx:957
FltHeader::add_light_source
void add_light_source(FltLightSourceDefinition *light_source)
Defines a new light source.
Definition fltHeader.cxx:948
FltHeader::clear_textures
void clear_textures()
Removes all textures from the palette.
Definition fltHeader.cxx:879
FltHeader::get_instance
FltInstanceDefinition * get_instance(int instance_index) const
Returns the instance subtree associated with the given index, or NULL if there is no such instance.
Definition fltHeader.cxx:422
FltHeader::get_path_replace
PathReplace * get_path_replace()
Returns a pointer to the PathReplace object associated with this converter.
Definition fltHeader.cxx:138
FltHeader::remove_material
void remove_material(int material_index)
Removes a particular material from the material palette, if it exists.
Definition fltHeader.cxx:849
FltHeader::write_flt
FltError write_flt(Filename filename)
Opens the indicated filename for writing and attempts to write the complete Flt file.
Definition fltHeader.cxx:237
FltHeader::set_eyepoint_trackplane_palette
void set_eyepoint_trackplane_palette(bool flag)
Sets the state of the eyepoint/trackplane palette flag.
Definition fltHeader.cxx:978
FltHeader::get_closest_rgb
int get_closest_rgb(const LRGBColor &color) const
Returns the color index of the nearest color in the palette that matches the given three-component co...
Definition fltHeader.cxx:680
FltHeader::get_num_colors
int get_num_colors() const
Returns the total number of different colors in the color palette.
Definition fltHeader.cxx:550
FltHeader::clear_materials
void clear_materials()
Removes all materials from the palette.
Definition fltHeader.cxx:820
FltHeader::get_light_source
FltLightSourceDefinition * get_light_source(int light_index) const
Returns the light source associated with the given index, or NULL if there is no such light source.
Definition fltHeader.cxx:925
FltHeader::remove_texture
void remove_texture(int texture_index)
Removes a particular texture from the texture palette, if it exists.
Definition fltHeader.cxx:908
FltHeader::get_num_trackplanes
int get_num_trackplanes() const
Returns the number of trackplanes in the eyepoint/trackplane palette.
Definition fltHeader.cxx:1005
FltHeader::get_closest_color
int get_closest_color(const LColor &color) const
Returns the color index of the nearest color in the palette that matches the given four-component col...
Definition fltHeader.cxx:618
FltHeader::clear_vertices
void clear_vertices()
Removes all vertices from the vertex palette.
Definition fltHeader.cxx:478
FltHeader::clear_light_sources
void clear_light_sources()
Removes all light sources from the palette.
Definition fltHeader.cxx:938
FltHeader::convert_path
Filename convert_path(const Filename &orig_filename, const DSearchPath &additional_path=DSearchPath())
Uses the PathReplace object to convert the named filename as read from the flt record to its actual n...
Definition fltHeader.cxx:157
FltHeader::has_material
bool has_material(int material_index) const
Returns true if a material with the given index has been defined.
Definition fltHeader.cxx:798
FltHeader::get_num_vertices
int get_num_vertices() const
Returns the number of vertices in the vertex palette.
Definition fltHeader.cxx:461
FltHeader::got_eyepoint_trackplane_palette
bool got_eyepoint_trackplane_palette() const
Returns true if we have read an eyepoint/trackplane palette, and at least some of the eyepoints and t...
Definition fltHeader.cxx:967
FltHeader::get_texture
FltTexture * get_texture(int texture_index) const
Returns the texture associated with the given index, or NULL if there is no such texture.
Definition fltHeader.cxx:866
FltHeader::has_instance
bool has_instance(int instance_index) const
Returns true if a instance subtree with the given index has been defined.
Definition fltHeader.cxx:413
FltInstanceDefinition
This special kind of record marks the top node of an instance subtree.
Definition fltInstanceDefinition.h:28
FltLightSourceDefinition
Represents a single entry in the light source palette.
Definition fltLightSourceDefinition.h:28
FltMaterial
Represents a single material in the material palette.
Definition fltMaterial.h:28
FltPackedColor
A packed color record, A, B, G, R.
Definition fltPackedColor.h:29
FltRecordReader
This class turns an istream into a sequence of FltRecords by reading a sequence of Datagrams and extr...
Definition fltRecordReader.h:30
FltRecordWriter
This class writes a sequence of FltRecords to an ostream, handling opcode and size counts properly.
Definition fltRecordWriter.h:31
FltTexture
Represents a single texture in the texture palette.
Definition fltTexture.h:27
FltTrackplane
A single trackplane entry in the eyepoint/trackplane palette.
Definition fltTrackplane.h:27
FltVertex
Represents a single vertex in the vertex palette.
Definition fltVertex.h:32
PathReplace
This encapsulates the user's command-line request to replace existing, incorrect pathnames to models ...
Definition pathReplace.h:36
TypeHandle
TypeHandle is the identifier used to differentiate C++ class types.
Definition typeHandle.h:81
dSearchPath.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
distanceUnit.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
DistanceUnit
DistanceUnit
This enumerated type lists all the kinds of units we're likely to come across in model conversion pro...
Definition distanceUnit.h:23
filename.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltBeadID.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltEyepoint.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltInstanceDefinition.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltLightSourceDefinition.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltMaterial.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltTexture.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltTrackplane.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
fltVertex.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pandatoolbase.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pathReplace.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pmap.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pointerTo.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pset.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
pvector.h
PANDA 3D SOFTWARE Copyright (c) Carnegie Mellon University.
register_type
void register_type(TypeHandle &type_handle, const std::string &name)
This inline function is just a convenient way to call TypeRegistry::register_type(),...
Definition register_type.I:22