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Diffstat (limited to '')
-rw-r--r-- | src/others/mimesh/libg3d-0.0.8/plugins/import/imp_lwo/imp_lwo.c | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_lwo/imp_lwo.c b/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_lwo/imp_lwo.c new file mode 100644 index 0000000..d01b817 --- /dev/null +++ b/src/others/mimesh/libg3d-0.0.8/plugins/import/imp_lwo/imp_lwo.c | |||
@@ -0,0 +1,216 @@ | |||
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 | |||
23 | /* | ||
24 | * imp_lwo.c - LightWave import plugin | ||
25 | * | ||
26 | * (C) 2005,2006 Markus Dahms | ||
27 | * | ||
28 | * based on gtkglarea example viewlw: | ||
29 | * Copyright (C) 1998 Janne Löf <jlof@mail.student.oulu.fi> | ||
30 | */ | ||
31 | |||
32 | #include <string.h> | ||
33 | |||
34 | #include <g3d/types.h> | ||
35 | #include <g3d/context.h> | ||
36 | #include <g3d/stream.h> | ||
37 | #include <g3d/material.h> | ||
38 | #include <g3d/iff.h> | ||
39 | |||
40 | #define LW_MAX_POINTS 200 | ||
41 | #define LW_MAX_NAME_LEN 500 | ||
42 | #define LW_F_LWO2 1 | ||
43 | |||
44 | #include "imp_lwo.h" | ||
45 | #include "imp_lwo_chunks.h" | ||
46 | |||
47 | /*****************************************************************************/ | ||
48 | /* plugin interface */ | ||
49 | /*****************************************************************************/ | ||
50 | |||
51 | static void lwo_fix_texfaces(G3DModel *model); | ||
52 | |||
53 | EAPI | ||
54 | gboolean plugin_load_model_from_stream(G3DContext *context, G3DStream *stream, | ||
55 | G3DModel *model, gpointer user_data) | ||
56 | { | ||
57 | LwoObject *obj; | ||
58 | G3DMaterial *material; | ||
59 | guint32 id; | ||
60 | gsize len; | ||
61 | G3DIffGlobal *global; | ||
62 | G3DIffLocal *local; | ||
63 | |||
64 | if(!g3d_iff_check(stream, &id, &len)) | ||
65 | return FALSE; | ||
66 | |||
67 | if((id != G3D_IFF_MKID('L','W','O','B')) && | ||
68 | (id != G3D_IFF_MKID('L','W','O','2'))) { | ||
69 | g_warning("'%s' is not a LightWave object", stream->uri); | ||
70 | return FALSE; | ||
71 | } | ||
72 | |||
73 | obj = g_new0(LwoObject, 1); | ||
74 | |||
75 | global = g_new0(G3DIffGlobal, 1); | ||
76 | global->stream = stream; | ||
77 | global->context = context; | ||
78 | global->model = model; | ||
79 | if(id == G3D_IFF_MKID('L','W','O','2')) | ||
80 | global->flags |= LWO_FLAG_LWO2; | ||
81 | global->user_data = obj; | ||
82 | |||
83 | local = g_new0(G3DIffLocal, 1); | ||
84 | local->id = id; | ||
85 | local->nb = len; | ||
86 | |||
87 | material = g3d_material_new(); | ||
88 | material->name = g_strdup("fallback material"); | ||
89 | model->materials = g_slist_append(model->materials, material); | ||
90 | |||
91 | g3d_iff_read_ctnr(global, local, lwo_chunks, | ||
92 | G3D_IFF_PAD2 | G3D_IFF_SUBCHUNK_LEN16); | ||
93 | |||
94 | lwo_fix_texfaces(model); | ||
95 | |||
96 | /* cleanup */ | ||
97 | if(obj->ntags) | ||
98 | g_strfreev(obj->tags); | ||
99 | |||
100 | if(obj->nclips) | ||
101 | { | ||
102 | g_free(obj->clips); | ||
103 | g_strfreev(obj->clipfiles); | ||
104 | } | ||
105 | |||
106 | if(obj->tex_vertices) | ||
107 | g_free(obj->tex_vertices); | ||
108 | |||
109 | g_free(obj); | ||
110 | |||
111 | g_free(local); | ||
112 | g_free(global); | ||
113 | |||
114 | g3d_context_update_progress_bar(context, 0.0, FALSE); | ||
115 | |||
116 | return TRUE; | ||
117 | } | ||
118 | |||
119 | EAPI | ||
120 | gchar *plugin_description(G3DContext *context) | ||
121 | { | ||
122 | return g_strdup("LightWave models.\n" | ||
123 | "Author: Markus Dahms."); | ||
124 | } | ||
125 | |||
126 | EAPI | ||
127 | gchar **plugin_extensions(G3DContext *context) | ||
128 | { | ||
129 | return g_strsplit("lwo:lwb:lw", ":", 0); | ||
130 | } | ||
131 | |||
132 | /*****************************************************************************/ | ||
133 | /* private */ | ||
134 | /*****************************************************************************/ | ||
135 | |||
136 | G3DObject *lwo_create_object(G3DStream *stream, G3DModel *model, guint32 flags) | ||
137 | { | ||
138 | G3DObject *object = g_new0(G3DObject, 1); | ||
139 | object->name = g_strdup_printf("LWO%c object @ 0x%08x", | ||
140 | (flags & LW_F_LWO2) ? '2' : 'B', (guint32)g3d_stream_tell(stream) - 8); | ||
141 | model->objects = g_slist_append(model->objects, object); | ||
142 | |||
143 | #if 0 | ||
144 | /* LWO files should have correct faces */ | ||
145 | model->glflags &= ~G3D_FLAG_GL_ALLTWOSIDE; | ||
146 | #endif | ||
147 | |||
148 | return object; | ||
149 | } | ||
150 | |||
151 | /*****************************************************************************/ | ||
152 | /* LWO specific */ | ||
153 | /*****************************************************************************/ | ||
154 | |||
155 | gint lwo_read_string(G3DStream *stream, char *s) | ||
156 | { | ||
157 | gint c; | ||
158 | gint cnt = 0; | ||
159 | do { | ||
160 | c = g3d_stream_read_int8(stream); | ||
161 | if (cnt < LW_MAX_NAME_LEN) | ||
162 | s[cnt] = c; | ||
163 | else | ||
164 | s[LW_MAX_NAME_LEN-1] = 0; | ||
165 | cnt++; | ||
166 | } while (c != 0); | ||
167 | /* if length of string (including \0) is odd skip another byte */ | ||
168 | if (cnt%2) { | ||
169 | g3d_stream_read_int8(stream); | ||
170 | cnt++; | ||
171 | } | ||
172 | return cnt; | ||
173 | } | ||
174 | |||
175 | guint32 lwo_read_vx(G3DStream *stream, guint *index) | ||
176 | { | ||
177 | *index = g3d_stream_read_int16_be(stream); | ||
178 | if((*index & 0xFF00) == 0xFF00) { | ||
179 | *index <<= 16; | ||
180 | *index += g3d_stream_read_int16_be(stream); | ||
181 | *index &= 0x00FFFFFF; | ||
182 | return 4; | ||
183 | } else { | ||
184 | return 2; | ||
185 | } | ||
186 | } | ||
187 | |||
188 | static void lwo_fix_texfaces(G3DModel *model) | ||
189 | { | ||
190 | GSList *olist, *flist; | ||
191 | G3DObject *object; | ||
192 | G3DFace *face; | ||
193 | |||
194 | olist = model->objects; | ||
195 | while(olist) | ||
196 | { | ||
197 | object = (G3DObject *)olist->data; | ||
198 | olist = olist->next; | ||
199 | |||
200 | flist = object->faces; | ||
201 | while(flist) | ||
202 | { | ||
203 | face = (G3DFace *)flist->data; | ||
204 | flist = flist->next; | ||
205 | |||
206 | if(face->flags & G3D_FLAG_FAC_TEXMAP) | ||
207 | { | ||
208 | face->tex_image = face->material->tex_image; | ||
209 | if(face->tex_image == NULL) | ||
210 | { | ||
211 | face->flags &= ~G3D_FLAG_FAC_TEXMAP; | ||
212 | } | ||
213 | } | ||
214 | } | ||
215 | } | ||
216 | } | ||