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Viewing changes to OpenSceneGraph/src/osgPlugins/3ds/viewport.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Alberto Luaces
  • Date: 2010-05-03 21:42:01 UTC
  • mfrom: (1.1.9 upstream) (2.1.11 sid)
  • Revision ID: james.westby@ubuntu.com-20100503214201-iy060qxb94vsfv87
Tags: 2.8.3-3
http://bugs.debian.org/580079
* Added README.source. Thanks Manuel Montecelo.
* Removed FindGDAL.cmake file supplied by upstream since it does not
  detect current libgdal1-1.6.0. The script provided by CMake works
  fine.
* Removed openthreads-doc since OpenThreads documentation is shared with
  OpenSceneGraph's, hence this package was empty.
* Now ccache handling is being done automatically by CMake.
* Drop conflict dependencies with previous versions to let them coexist
  with current ones (Closes: #580079 #580081).

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OpenSceneGraph/src/osgPlugins/3ds/viewport.cpp
1
 
/*
2
 
 * The 3D Studio File Format Library
3
 
 * Copyright (C) 1996-2001 by J.E. Hoffmann <je-h@gmx.net>
4
 
 * All rights reserved.
5
 
 *
6
 
 * This program is  free  software;  you can redistribute it and/or modify it
7
 
 * under the terms of the  GNU Lesser General Public License  as published by 
8
 
 * the  Free Software Foundation;  either version 2.1 of the License,  or (at 
9
 
 * your option) any later version.
10
 
 *
11
 
 * This  program  is  distributed in  the  hope that it will  be useful,  but
12
 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13
 
 * or  FITNESS FOR A  PARTICULAR PURPOSE.  See the  GNU Lesser General Public  
14
 
 * License for more details.
15
 
 *
16
 
 * You should  have received  a copy of the GNU Lesser General Public License
17
 
 * along with  this program;  if not, write to the  Free Software Foundation,
18
 
 * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19
 
 *
20
 
 * $Id: viewport.cpp 9397 2008-12-18 15:49:44Z robert $
21
 
 */
22
 
#define LIB3DS_EXPORT
23
 
#include "viewport.h"
24
 
#include "chunk.h"
25
 
#include "readwrite.h"
26
 
#include <stdlib.h>
27
 
#include <string.h>
28
 
 
29
 
 
30
 
/*!
31
 
 * \defgroup viewport Viewport and default view settings
32
 
 *
33
 
 * \author J.E. Hoffmann <je-h@gmx.net>
34
 
 */
35
 
 
36
 
 
37
 
/*!
38
 
 * \ingroup viewport 
39
 
 */
40
 
Lib3dsBool
41
 
lib3ds_viewport_read(Lib3dsViewport *viewport, FILE *f)
42
 
{
43
 
  Lib3dsChunk c;
44
 
  Lib3dsWord chunk;
45
 
 
46
 
  if (!lib3ds_chunk_read_start(&c, 0, f)) {
47
 
    return(LIB3DS_FALSE);
48
 
  }
49
 
  
50
 
  switch (c.chunk) {
51
 
    case LIB3DS_VIEWPORT_LAYOUT:
52
 
      {
53
 
        int cur=0;
54
 
        viewport->layout.style=lib3ds_word_read(f);
55
 
        viewport->layout.active=lib3ds_intw_read(f);
56
 
        lib3ds_intw_read(f);
57
 
        viewport->layout.swap=lib3ds_intw_read(f);
58
 
        lib3ds_intw_read(f);
59
 
        viewport->layout.swap_prior=lib3ds_intw_read(f);
60
 
        viewport->layout.swap_view=lib3ds_intw_read(f);
61
 
        lib3ds_chunk_read_tell(&c, f);
62
 
        while ((chunk=lib3ds_chunk_read_next(&c, f))!=0) {
63
 
          switch (chunk) {
64
 
            case LIB3DS_VIEWPORT_SIZE:
65
 
              {
66
 
                viewport->layout.position[0]=lib3ds_word_read(f);
67
 
                viewport->layout.position[1]=lib3ds_word_read(f);
68
 
                viewport->layout.size[0]=lib3ds_word_read(f);
69
 
                viewport->layout.size[1]=lib3ds_word_read(f);
70
 
              }
71
 
              break;
72
 
            case LIB3DS_VIEWPORT_DATA_3:
73
 
              {
74
 
                lib3ds_viewport_set_views(viewport,cur+1);
75
 
                lib3ds_intw_read(f);
76
 
                viewport->layout.viewL[cur].axis_lock=lib3ds_word_read(f);
77
 
                viewport->layout.viewL[cur].position[0]=lib3ds_intw_read(f);
78
 
                viewport->layout.viewL[cur].position[1]=lib3ds_intw_read(f);
79
 
                viewport->layout.viewL[cur].size[0]=lib3ds_intw_read(f);
80
 
                viewport->layout.viewL[cur].size[1]=lib3ds_intw_read(f);
81
 
                viewport->layout.viewL[cur].type=lib3ds_word_read(f);
82
 
                viewport->layout.viewL[cur].zoom=lib3ds_float_read(f);
83
 
                lib3ds_vector_read(viewport->layout.viewL[cur].center,f);
84
 
                viewport->layout.viewL[cur].horiz_angle=lib3ds_float_read(f);
85
 
                viewport->layout.viewL[cur].vert_angle=lib3ds_float_read(f);
86
 
 
87
 
                int result = fread(viewport->layout.viewL[cur].camera,11,1,f);
88
 
                if (result==0) return (LIB3DS_FALSE);
89
 
 
90
 
                ++cur;
91
 
              }
92
 
              break;
93
 
            case LIB3DS_VIEWPORT_DATA:
94
 
              /* 3DS R2 & R3 chunk
95
 
                 unsupported */
96
 
              break;
97
 
            default:
98
 
              lib3ds_chunk_unknown(chunk);
99
 
          }
100
 
        }
101
 
      }
102
 
      break;
103
 
    case LIB3DS_DEFAULT_VIEW:
104
 
      {
105
 
        memset(&viewport->default_view,0,sizeof(Lib3dsDefaultView));
106
 
        while ((chunk=lib3ds_chunk_read_next(&c, f))!=0) {
107
 
          switch (chunk) {
108
 
            case LIB3DS_VIEW_TOP:
109
 
              {
110
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_TOP;
111
 
                lib3ds_vector_read(viewport->default_view.position,f);
112
 
                viewport->default_view.width=lib3ds_float_read(f);
113
 
              }
114
 
              break;
115
 
            case LIB3DS_VIEW_BOTTOM:
116
 
              {
117
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_BOTTOM;
118
 
                lib3ds_vector_read(viewport->default_view.position,f);
119
 
                viewport->default_view.width=lib3ds_float_read(f);
120
 
              }
121
 
              break;
122
 
            case LIB3DS_VIEW_LEFT:
123
 
              {
124
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_LEFT;
125
 
                lib3ds_vector_read(viewport->default_view.position,f);
126
 
                viewport->default_view.width=lib3ds_float_read(f);
127
 
              }
128
 
              break;
129
 
            case LIB3DS_VIEW_RIGHT:
130
 
              {
131
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_RIGHT;
132
 
                lib3ds_vector_read(viewport->default_view.position,f);
133
 
                viewport->default_view.width=lib3ds_float_read(f);
134
 
              }
135
 
              break;
136
 
            case LIB3DS_VIEW_FRONT:
137
 
              {
138
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_FRONT;
139
 
                lib3ds_vector_read(viewport->default_view.position,f);
140
 
                viewport->default_view.width=lib3ds_float_read(f);
141
 
              }
142
 
              break;
143
 
            case LIB3DS_VIEW_BACK:
144
 
              {
145
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_BACK;
146
 
                lib3ds_vector_read(viewport->default_view.position,f);
147
 
                viewport->default_view.width=lib3ds_float_read(f);
148
 
              }
149
 
              break;
150
 
            case LIB3DS_VIEW_USER:
151
 
              {
152
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_USER;
153
 
                lib3ds_vector_read(viewport->default_view.position,f);
154
 
                viewport->default_view.width=lib3ds_float_read(f);
155
 
                viewport->default_view.horiz_angle=lib3ds_float_read(f);
156
 
                viewport->default_view.vert_angle=lib3ds_float_read(f);
157
 
                viewport->default_view.roll_angle=lib3ds_float_read(f);
158
 
              }
159
 
              break;
160
 
            case LIB3DS_VIEW_CAMERA:
161
 
              {
162
 
                viewport->default_view.type=LIB3DS_VIEW_TYPE_CAMERA;
163
 
                int result = fread(viewport->default_view.camera,11,1,f);
164
 
                if (result==0) return (LIB3DS_FALSE);
165
 
              }
166
 
              break;
167
 
            default:
168
 
              lib3ds_chunk_unknown(chunk);
169
 
          }
170
 
        }
171
 
      }
172
 
      break;
173
 
  }
174
 
 
175
 
  lib3ds_chunk_read_end(&c, f);
176
 
  return(LIB3DS_TRUE);
177
 
}
178
 
 
179
 
 
180
 
/*!
181
 
 * \ingroup viewport 
182
 
 */
183
 
void
184
 
lib3ds_viewport_set_views(Lib3dsViewport *viewport, Lib3dsDword views)
185
 
{
186
 
  ASSERT(viewport);
187
 
  if (viewport->layout.views) {
188
 
    if (views) {
189
 
      viewport->layout.views=views;
190
 
      viewport->layout.viewL=(Lib3dsView*)realloc(viewport->layout.viewL, sizeof(Lib3dsView)*views);
191
 
    }
192
 
    else {
193
 
      free(viewport->layout.viewL);
194
 
      viewport->layout.views=0;
195
 
      viewport->layout.viewL=0;
196
 
    }
197
 
  }
198
 
  else {
199
 
    viewport->layout.views=views;
200
 
    viewport->layout.viewL= views ? (Lib3dsView*)calloc(sizeof(Lib3dsView),views) : 0;
201
 
  }
202
 
}
203
 
 
204
 
 
205
 
/*!
206
 
 * \ingroup viewport 
207
 
 */
208
 
Lib3dsBool
209
 
lib3ds_viewport_write(Lib3dsViewport *viewport, FILE *f)
210
 
{
211
 
  if (viewport->layout.views) {
212
 
    Lib3dsChunk c;
213
 
    unsigned i;
214
 
 
215
 
    c.chunk=LIB3DS_VIEWPORT_LAYOUT;
216
 
    if (!lib3ds_chunk_write_start(&c,f)) {
217
 
      return(LIB3DS_FALSE);
218
 
    }
219
 
 
220
 
    lib3ds_word_write(viewport->layout.style,f);
221
 
    lib3ds_intw_write(viewport->layout.active,f);
222
 
    lib3ds_intw_write(0,f);
223
 
    lib3ds_intw_write(viewport->layout.swap,f);
224
 
    lib3ds_intw_write(0,f);
225
 
    lib3ds_intw_write(viewport->layout.swap_prior,f);
226
 
    lib3ds_intw_write(viewport->layout.swap_view,f);
227
 
    
228
 
    {
229
 
      Lib3dsChunk c;
230
 
      c.chunk=LIB3DS_VIEWPORT_SIZE;
231
 
      c.size=14;
232
 
      lib3ds_chunk_write(&c,f);
233
 
      lib3ds_intw_write(viewport->layout.position[0],f);
234
 
      lib3ds_intw_write(viewport->layout.position[1],f);
235
 
      lib3ds_intw_write(viewport->layout.size[0],f);
236
 
      lib3ds_intw_write(viewport->layout.size[1],f);
237
 
    }
238
 
 
239
 
    for (i=0; i<viewport->layout.views; ++i) {
240
 
      Lib3dsChunk c;
241
 
      c.chunk=LIB3DS_VIEWPORT_DATA_3;
242
 
      c.size=55;
243
 
      lib3ds_chunk_write(&c,f);
244
 
 
245
 
      lib3ds_intw_write(0,f);
246
 
      lib3ds_word_write(viewport->layout.viewL[i].axis_lock,f);
247
 
      lib3ds_intw_write(viewport->layout.viewL[i].position[0],f);
248
 
      lib3ds_intw_write(viewport->layout.viewL[i].position[1],f);
249
 
      lib3ds_intw_write(viewport->layout.viewL[i].size[0],f);
250
 
      lib3ds_intw_write(viewport->layout.viewL[i].size[1],f);
251
 
      lib3ds_word_write(viewport->layout.viewL[i].type,f);
252
 
      lib3ds_float_write(viewport->layout.viewL[i].zoom,f);
253
 
      lib3ds_vector_write(viewport->layout.viewL[i].center,f);
254
 
      lib3ds_float_write(viewport->layout.viewL[i].horiz_angle,f);
255
 
      lib3ds_float_write(viewport->layout.viewL[i].vert_angle,f);
256
 
      int result = fwrite(viewport->layout.viewL[i].camera,11,1,f);
257
 
      if (result==0) return (LIB3DS_FALSE);
258
 
    }
259
 
 
260
 
    if (!lib3ds_chunk_write_end(&c,f)) {
261
 
      return(LIB3DS_FALSE);
262
 
    }
263
 
  }
264
 
 
265
 
  if (viewport->default_view.type) {
266
 
    Lib3dsChunk c;
267
 
 
268
 
    c.chunk=LIB3DS_DEFAULT_VIEW;
269
 
    if (!lib3ds_chunk_write_start(&c,f)) {
270
 
      return(LIB3DS_FALSE);
271
 
    }
272
 
 
273
 
    switch (viewport->default_view.type) {
274
 
      case LIB3DS_VIEW_TYPE_TOP:
275
 
        {
276
 
          Lib3dsChunk c;
277
 
          c.chunk=LIB3DS_VIEW_TOP;
278
 
          c.size=22;
279
 
          lib3ds_chunk_write(&c,f);
280
 
          lib3ds_vector_write(viewport->default_view.position,f);
281
 
          lib3ds_float_write(viewport->default_view.width,f);
282
 
        }
283
 
        break;
284
 
      case LIB3DS_VIEW_TYPE_BOTTOM:
285
 
        {
286
 
          Lib3dsChunk c;
287
 
          c.chunk=LIB3DS_VIEW_BOTTOM;
288
 
          c.size=22;
289
 
          lib3ds_chunk_write(&c,f);
290
 
          lib3ds_vector_write(viewport->default_view.position,f);
291
 
          lib3ds_float_write(viewport->default_view.width,f);
292
 
        }
293
 
        break;
294
 
      case LIB3DS_VIEW_TYPE_LEFT:
295
 
        {
296
 
          Lib3dsChunk c;
297
 
          c.chunk=LIB3DS_VIEW_LEFT;
298
 
          c.size=22;
299
 
          lib3ds_chunk_write(&c,f);
300
 
          lib3ds_vector_write(viewport->default_view.position,f);
301
 
          lib3ds_float_write(viewport->default_view.width,f);
302
 
        }
303
 
        break;
304
 
      case LIB3DS_VIEW_TYPE_RIGHT:
305
 
        {
306
 
          Lib3dsChunk c;
307
 
          c.chunk=LIB3DS_VIEW_RIGHT;
308
 
          c.size=22;
309
 
          lib3ds_chunk_write(&c,f);
310
 
          lib3ds_vector_write(viewport->default_view.position,f);
311
 
          lib3ds_float_write(viewport->default_view.width,f);
312
 
        }
313
 
        break;
314
 
      case LIB3DS_VIEW_TYPE_FRONT:
315
 
        {
316
 
          Lib3dsChunk c;
317
 
          c.chunk=LIB3DS_VIEW_FRONT;
318
 
          c.size=22;
319
 
          lib3ds_chunk_write(&c,f);
320
 
          lib3ds_vector_write(viewport->default_view.position,f);
321
 
          lib3ds_float_write(viewport->default_view.width,f);
322
 
        }
323
 
        break;
324
 
      case LIB3DS_VIEW_TYPE_BACK:
325
 
        {
326
 
          Lib3dsChunk c;
327
 
          c.chunk=LIB3DS_VIEW_BACK;
328
 
          c.size=22;
329
 
          lib3ds_chunk_write(&c,f);
330
 
          lib3ds_vector_write(viewport->default_view.position,f);
331
 
          lib3ds_float_write(viewport->default_view.width,f);
332
 
        }
333
 
        break;
334
 
      case LIB3DS_VIEW_TYPE_USER:
335
 
        {
336
 
          Lib3dsChunk c;
337
 
          c.chunk=LIB3DS_VIEW_USER;
338
 
          c.size=34;
339
 
          lib3ds_chunk_write(&c,f);
340
 
          lib3ds_vector_write(viewport->default_view.position,f);
341
 
          lib3ds_float_write(viewport->default_view.width,f);
342
 
          lib3ds_float_write(viewport->default_view.horiz_angle,f);
343
 
          lib3ds_float_write(viewport->default_view.vert_angle,f);
344
 
          lib3ds_float_write(viewport->default_view.roll_angle,f);
345
 
        }
346
 
        break;
347
 
      case LIB3DS_VIEW_TYPE_CAMERA:
348
 
        {
349
 
          Lib3dsChunk c;
350
 
          c.chunk=LIB3DS_VIEW_CAMERA;
351
 
          c.size=17;
352
 
          lib3ds_chunk_write(&c,f);
353
 
          int result = fwrite(viewport->default_view.camera,1,11,f);
354
 
          if (result==0) return (LIB3DS_FALSE);
355
 
        }
356
 
        break;
357
 
    }
358
 
 
359
 
    if (!lib3ds_chunk_write_end(&c,f)) {
360
 
      return(LIB3DS_FALSE);
361
 
    }
362
 
  }
363
 
  return(LIB3DS_TRUE);
364
 
}
365
 
 
366
 
 
367
 
/*!
368
 
 
369
 
\typedef Lib3dsViewport
370
 
  \ingroup viewport
371
 
  \sa _Lib3dsViewport
372
 
 
373
 
*/