1 /*
2 gl_model_iqm.c
3
4 iqm model processing for GLSL
5
6 Copyright (C) 2011 Bill Currie <bill@taniwha.org>
7
8 Author: Bill Currie <bill@taniwha.org>
9 Date: 2012/04/27
10
11 This program is free software; you can redistribute it and/or
12 modify it under the terms of the GNU General Public License
13 as published by the Free Software Foundation; either version 2
14 of the License, or (at your option) any later version.
15
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
19
20 See the GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; if not, write to:
24
25 Free Software Foundation, Inc.
26 59 Temple Place - Suite 330
27 Boston, MA 02111-1307, USA
28
29 */
30
31 #ifdef HAVE_CONFIG_H
32 # include "config.h"
33 #endif
34
35 #ifdef HAVE_STRING_H
36 # include <string.h>
37 #endif
38 #ifdef HAVE_STRINGS_H
39 # include <strings.h>
40 #endif
41
42 #include "QF/dstring.h"
43 #include "QF/image.h"
44 #include "QF/quakefs.h"
45 #include "QF/va.h"
46 #include "QF/GL/qf_iqm.h"
47 #include "QF/GL/qf_textures.h"
48
49 #include "mod_internal.h"
50
51 static byte null_texture[] = {
52 204, 204, 204, 255,
53 204, 204, 204, 255,
54 204, 204, 204, 255,
55 204, 204, 204, 255,
56 };
57
58 static void
gl_iqm_clear(model_t * mod)59 gl_iqm_clear (model_t *mod)
60 {
61 iqm_t *iqm = (iqm_t *) mod->aliashdr;
62 gliqm_t *gl = (gliqm_t *) iqm->extra_data;
63
64 mod->needload = true;
65
66 free (gl->blend_palette);
67 free (gl);
68 Mod_FreeIQM (iqm);
69 }
70
71 static void
gl_iqm_load_textures(iqm_t * iqm)72 gl_iqm_load_textures (iqm_t *iqm)
73 {
74 gliqm_t *gl = (gliqm_t *) iqm->extra_data;
75 int i;
76 dstring_t *str = dstring_new ();
77 tex_t *tex;
78
79 gl->textures = malloc (iqm->num_meshes * sizeof (int));
80 for (i = 0; i < iqm->num_meshes; i++) {
81 dstring_copystr (str, iqm->text + iqm->meshes[i].material);
82 QFS_StripExtension (str->str, str->str);
83 if ((tex = LoadImage (va ("textures/%s", str->str))))
84 gl->textures[i] = GL_LoadTexture (str->str, tex->width,
85 tex->height, tex->data, true,
86 false,
87 tex->format > 2 ? tex->format
88 : 1);
89 else
90 gl->textures[i] = GL_LoadTexture ("", 2, 2, null_texture, true,
91 false, 4);
92 }
93 dstring_delete (str);
94 }
95
96 void
gl_Mod_IQMFinish(model_t * mod)97 gl_Mod_IQMFinish (model_t *mod)
98 {
99 iqm_t *iqm = (iqm_t *) mod->aliashdr;
100 gliqm_t *gl;
101 int i;
102
103 mod->clear = gl_iqm_clear;
104 iqm->extra_data = gl = calloc (1, sizeof (gliqm_t));
105 gl_iqm_load_textures (iqm);
106 gl->blend_palette = Mod_IQMBuildBlendPalette (iqm, &gl->palette_size);
107 for (i = 0; i < iqm->num_arrays; i++) {
108 if (iqm->vertexarrays[i].type == IQM_POSITION)
109 gl->position = &iqm->vertexarrays[i];
110 if (iqm->vertexarrays[i].type == IQM_TEXCOORD)
111 gl->texcoord = &iqm->vertexarrays[i];
112 if (iqm->vertexarrays[i].type == IQM_NORMAL)
113 gl->normal = &iqm->vertexarrays[i];
114 if (iqm->vertexarrays[i].type == IQM_BLENDINDEXES)
115 gl->bindices = &iqm->vertexarrays[i];
116 if (iqm->vertexarrays[i].type == IQM_COLOR)
117 gl->color = &iqm->vertexarrays[i];
118 }
119 }
120