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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
*/
#include <string.h>
#include <stdio.h>
#include <g3d/types.h>
#include <g3d/matrix.h>
#include <g3d/object.h>
#include "imp_ldraw_types.h"
#include "imp_ldraw_part.h"
#include "imp_ldraw_library.h"
static inline void ldraw_create_subpart(LDrawLibrary *lib, gchar *name,
gchar *buffer, GSList **partsp)
{
G3DStream *substream;
LDrawPart *part;
#if DEBUG > 2
g_debug("LDraw: adding sub-file %s to library", name);
#endif
substream = g3d_stream_from_buffer((guint8 *)buffer, strlen(buffer),
name, TRUE);
if(substream == NULL) {
g_warning("LDraw: failed to create stream for %s", name);
return;
}
part = g_new0(LDrawPart, 1);
part->name = g_ascii_strup(name, -1);
part->stream = substream;
ldraw_library_insert(lib, part->name, part);
*partsp = g_slist_append(*partsp, part);
}
gboolean ldraw_mpd_load(G3DStream *stream, G3DModel *model,
LDrawLibrary *lib)
{
G3DObject *object = NULL;
GSList *parts = NULL, *item;
LDrawPart *part;
gchar buffer[1024], name[256], *streambuf = NULL;
gsize size;
goffset off;
G3DFloat m[16];
while(!g3d_stream_eof(stream)) {
memset(buffer, 0, 1024);
g3d_stream_read_line(stream, buffer, 1023);
if(strncmp(buffer, "0 FILE ", 7) == 0) {
if(streambuf) {
ldraw_create_subpart(lib, name, streambuf, &parts);
streambuf = NULL;
}
memset(name, 0, 256);
if(sscanf(buffer + 7, "%255s", name) == 1)
streambuf = g_strdup("");
} else if(strncmp(buffer, "0 NOFILE", 8) == 0) {
if(streambuf) {
ldraw_create_subpart(lib, name, streambuf, &parts);
streambuf = NULL;
}
break;
} else if(streambuf) {
/* append line to buffer */
size = strlen(buffer) + strlen(streambuf) + 1;
off = strlen(streambuf);
streambuf = g_realloc(streambuf, size * sizeof(gchar));
strcpy(streambuf + off, buffer);
}
} /* !eof */
if(streambuf)
ldraw_create_subpart(lib, name, streambuf, &parts);
if(parts) {
part = parts->data;
part->master = TRUE;
object = ldraw_part_get_object(part, lib);
if(object != NULL) {
g3d_matrix_identity(m);
g3d_matrix_rotate_xyz(0.0, 0.0, G_PI, m);
g3d_object_transform(object, m);
model->objects = g_slist_append(model->objects, object);
}
}
#if 1
/* close open streams */
for(item = parts; item != NULL; item = item->next) {
part = item->data;
if(part->stream) {
g3d_stream_close(part->stream);
part->stream = NULL;
}
}
#endif
return (object != NULL);
}
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