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Diffstat (limited to 'src/others/mimesh/libg3d-0.0.8/plugins/import/imp_3dm/imp_3dm_object.c')
-rw-r--r--src/others/mimesh/libg3d-0.0.8/plugins/import/imp_3dm/imp_3dm_object.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_3dm/imp_3dm_object.c b/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_3dm/imp_3dm_object.c
new file mode 100644
index 0000000..0e280a8
--- /dev/null
+++ b/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_3dm/imp_3dm_object.c
@@ -0,0 +1,80 @@
1/* $Id:$ */
2
3/*
4 libg3d - 3D object loading library
5
6 Copyright (C) 2005-2009 Markus Dahms <mad@automagically.de>
7
8 This library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 This library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with this library; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21*/
22#include <g3d/config.h>
23
24#include <g3d/types.h>
25#include <g3d/stream.h>
26
27#include "imp_3dm_types.h"
28
29static guint32 tdm_object_read_vector_data(G3DStream *stream,
30 G3DVector *vertex_data, guint32 vsize, guint32 vcount)
31{
32 gsize nb = 0;
33 gint32 i, j;
34
35 for(i = 0; i < vcount; i ++)
36 for(j = 0; j < vsize; j ++) {
37 vertex_data[i * vsize + j] = g3d_stream_read_float_le(stream);
38 nb += 4;
39 }
40 return nb;
41}
42
43gboolean tdm_object_read_vertex_data_uncompressed(TdmGlobal *global,
44 TdmLocal *local)
45{
46 TdmObjectRecord *obj = local->object;
47
48 local->len -= tdm_object_read_vector_data(global->stream,
49 obj->object->vertex_data, 3, obj->object->vertex_count);
50 return TRUE;
51}
52
53gboolean tdm_object_read_vertex_data_compressed(TdmGlobal *global,
54 TdmLocal *local)
55{
56#if HAVE_ZLIB
57 TdmObjectRecord *obj = local->object;
58 G3DStream *zstream;
59 guint32 csize;
60
61 g3d_stream_read_int32_le(global->stream); /* tcode */
62 csize = g3d_stream_read_int32_le(global->stream) - 4; /* size */
63 local->len -= 8;
64
65 zstream = g3d_stream_zlib_inflate_stream(global->stream, csize);
66 if(zstream) {
67 tdm_object_read_vector_data(zstream,
68 obj->object->vertex_data, 3, obj->object->vertex_count);
69 local->len -= csize;
70 g3d_stream_close(zstream);
71 /* CRC */
72 g3d_stream_read_int32_le(global->stream);
73 local->len -= 4;
74 return TRUE;
75 };
76#else
77 g_warning("no zlib support, unable to read deflated data");
78#endif /* HAVE_ZLIB */
79 return FALSE;
80}