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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 <locale.h>
#include <libxml/parser.h>
#include <libxml/tree.h>
#include <g3d/stream.h>
#include <g3d/types.h>
#include "imp_dae_xml.h"
#include "imp_dae_library.h"
#include "imp_dae_cb.h"
static int dae_input_read_cb(gpointer ctx, gchar *buffer, gint len)
{
return g3d_stream_read((G3DStream *)ctx, buffer, len);
}
static gboolean dae_load_scene(G3DContext *context, G3DStream *stream,
G3DModel *model, DaeLibrary *lib, xmlDocPtr xmldoc);
/*****************************************************************************/
EAPI
gboolean plugin_load_model_from_stream(G3DContext *context, G3DStream *stream,
G3DModel *model, gpointer user_data)
{
xmlDocPtr xmldoc;
DaeLibrary *lib;
gboolean retval = FALSE;
setlocale(LC_NUMERIC, "C");
xmlInitParser();
xmldoc = xmlReadIO(dae_input_read_cb, NULL, stream, stream->uri, NULL, 0);
if(xmldoc) {
lib = dae_library_load(xmldoc);
retval = dae_load_scene(context, stream, model, lib, xmldoc);
dae_library_cleanup(lib);
xmlFreeDoc(xmldoc);
}
xmlCleanupParser();
return retval;
}
EAPI
gchar *plugin_description(void)
{
return g_strdup("COLLADA models.");
}
EAPI
gchar **plugin_extensions(void)
{
return g_strsplit("dae", ":", 0);
}
/*****************************************************************************/
/* COLLADA specific stuff */
static gboolean dae_load_scene(G3DContext *context, G3DStream *stream,
G3DModel *model, DaeLibrary *lib, xmlDocPtr xmldoc)
{
DaeGlobalData *global;
DaeLocalData *local;
xmlNodePtr scenenode, node = NULL, instance = NULL;
gchar *name;
scenenode = dae_xml_get_child_by_tagname(
xmlDocGetRootElement(xmldoc), "scene");
if(scenenode == NULL) {
g_warning("DAE: could not get scene node");
return FALSE;
}
global = g_new0(DaeGlobalData, 1);
global->context = context;
global->stream = stream;
global->model = model;
global->xmldoc = xmldoc;
global->lib = lib;
while(dae_xml_next_child(lib, scenenode, &node, &instance, &name)) {
#if DEBUG > 2
g_debug("DAE: got node %s", name);
#endif
if(strcmp(name, "visual_scene") == 0) {
local = g_new0(DaeLocalData, 1);
local->node = node;
local->instance = instance;
local->parent = scenenode;
dae_cb_visual_scene(global, local);
g_free(local);
}
g_free(name);
}
g_free(global);
return TRUE;
}
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