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/* $Id:$ */
/*
libg3d - 3D object loading library
Copyright (C) 2005-2009 Markus Dahms <mad@automagically.de>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
plugin by Martin Gerhardy <martin.gerhardy@gmail.com>
*/
#include <stdio.h>
#include <string.h>
#include <g3d/types.h>
#include <g3d/material.h>
#include <g3d/texture.h>
#include <g3d/stream.h>
#include <g3d/iff.h>
EAPI
gboolean plugin_load_model_from_stream(G3DContext *context, G3DStream *stream,
G3DModel *model, gpointer user_data)
{
G3DObject *object;
gchar magic[16], texture[32];
guint32 type, filesize;
guint32 num_bones, num_meshs, num_frames;
guint32 ofs_bones, ofs_meshs, ofs_frames;
guint32 ofs_texcoords, ofs_verts, ofs_indices;
goffset off_start;
G3DImage *image = NULL;
G3DMaterial *material, *mat;
G3DFace *face;
GSList *mitem;
G3DFloat *normals;
int i;
off_start = g3d_stream_tell(stream);
g3d_stream_read(stream, magic, 16);
if(strcmp("DARKPLACESMODEL", magic)) {
g_warning("DPM: Unknown magic id: '%s'\n", magic);
return FALSE;
}
object = g_new0(G3DObject, 1);
/* read the header information */
type = g3d_stream_read_int32_be(stream);
filesize = g3d_stream_read_int32_be(stream);
/* skip some floats */
for (i = 0; i < 8; i++)
g3d_stream_read_float_le(stream);
num_bones = g3d_stream_read_int32_be(stream);
num_meshs = g3d_stream_read_int32_be(stream);
num_frames = g3d_stream_read_int32_be(stream);
ofs_bones = g3d_stream_read_int32_be(stream);
ofs_meshs = g3d_stream_read_int32_be(stream);
ofs_frames = g3d_stream_read_int32_be(stream);
/* default material */
material = g3d_material_new();
material->name = g_strdup("default material");
object->materials = g_slist_append(object->materials, material);
num_meshs = 1; /* only load the first mesh */
for (i = 0; i < num_meshs; i++) {
guint32 nvertex, ntris;
int j;
g3d_stream_seek(stream, off_start + ofs_meshs, G_SEEK_SET);
g3d_stream_read(stream, texture, 32);
/* read texture image */
if(strlen(texture) > 0) {
image = g3d_texture_load_cached(context, model, texture);
if(image == NULL) {
/* try jpeg */
char *strp = strrchr(texture, '.');
if(strp) {
strcpy(strp, ".jpg");
image = g3d_texture_load_cached(context, model, texture);
}
}
}
if(image == NULL) {
mitem = model->materials;
while(mitem) {
mat = (G3DMaterial *)mitem->data;
if(strcmp(mat->name, object->name) == 0) {
image = mat->tex_image;
break;
}
mitem = mitem->next;
}
}
nvertex = g3d_stream_read_int32_be(stream);
ntris = g3d_stream_read_int32_be(stream);
ofs_verts = g3d_stream_read_int32_be(stream);
ofs_texcoords = g3d_stream_read_int32_be(stream);
ofs_indices = g3d_stream_read_int32_be(stream);
/* read vertex data */
g3d_stream_seek(stream, off_start + ofs_verts, G_SEEK_SET);
object->vertex_count = nvertex;
object->vertex_data = g_new0(G3DFloat, nvertex * 3);
normals = g_new0(G3DFloat, nvertex * 3);
for(j = 0; j < nvertex; j++) {
}
/* read texture coords */
g3d_stream_seek(stream, off_start + ofs_texcoords, G_SEEK_SET);
object->tex_vertex_data = g_new0(G3DFloat, nvertex * 2);
for(j = 0; j < nvertex; j++) {
object->tex_vertex_data[j * 2 + 0] =
g3d_stream_read_float_be(stream);
object->tex_vertex_data[j * 2 + 1] =
g3d_stream_read_float_be(stream);
}
/* read triangles */
/* TODO */
}
return TRUE;
}
EAPI
gchar *plugin_description(G3DContext *context)
{
return g_strdup("Darkplaces engine models.");
}
EAPI
gchar **plugin_extensions(G3DContext *context)
{
return g_strsplit("dpm", ":", 0);
}
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