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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 <g3d/types.h>
#include <g3d/context.h>
#include <g3d/stream.h>
#include <g3d/material.h>
#include <g3d/model.h>
#include <g3d/matrix.h>
#include "imp_flt_opcodes.h"
FltOpcode *flt_opcode_info(guint32 opcode);
gboolean plugin_load_model_from_stream(G3DContext *context, G3DStream *stream,
G3DModel *model, gpointer user_data)
{
guint16 opcode, rlen;
FltOpcode *oi;
FltGlobalData *gd;
FltLocalData *ld;
G3DObject *g3dobj = NULL;
gpointer level_object = NULL;
gchar *pad;
gfloat prev_pcnt = 0.0, pcnt;
G3DMatrix rmatrix[16];
gd = g_new0(FltGlobalData, 1);
gd->context = context;
gd->model = model;
gd->stream = stream;
gd->oqueue = g_queue_new();
while(!g3d_stream_eof(stream)) {
/* get record information */
opcode = g3d_stream_read_int16_be(stream);
rlen = g3d_stream_read_int16_be(stream);
/* create local data */
ld = g_new0(FltLocalData, 1);
ld->opcode = opcode;
ld->nb = rlen - 4;
ld->g3dobj = g3dobj;
ld->level_object = level_object;
if(opcode == 0) {
/* end of file or error */
g_free(ld);
break;
}
oi = flt_opcode_info(opcode);
pad = g_strnfill(gd->level, ' ');
g_debug("\\%s[%04d][%c] %8d: %s", pad, opcode,
oi ? (oi->callback ? 'f' : ' ') : ' ',
rlen,
oi ? oi->description : "unknown");
g_free(pad);
if(oi && oi->callback)
oi->callback(gd, ld);
/* skip remaining bytes */
if(ld->nb > 0)
g3d_stream_skip(stream, ld->nb);
/* free local data */
g3dobj = ld->g3dobj;
level_object = ld->level_object;
g_free(ld);
/* update caller */
pcnt = (gfloat)g3d_stream_tell(stream) /
(gfloat)g3d_stream_size(stream);
if((pcnt - prev_pcnt) > 0.002) {
prev_pcnt = pcnt;
g3d_context_update_progress_bar(context, pcnt, TRUE);
}
g3d_context_update_interface(context);
}
g_queue_free(gd->oqueue);
if(gd->vertex_palette) {
g_free(gd->vertex_palette->offsets);
g_free(gd->vertex_palette->flags);
g_free(gd->vertex_palette->vertex_data);
g_free(gd->vertex_palette->normal_data);
g_free(gd->vertex_palette->tex_vertex_data);
g_free(gd->vertex_palette->vertex_materials);
g_free(gd->vertex_palette);
}
if(gd->texture_palette) {
g_free(gd->texture_palette->offsets);
g_free(gd->texture_palette->textures);
g_free(gd->texture_palette);
}
g_free(gd);
g3d_matrix_identity(rmatrix);
g3d_matrix_rotate_xyz(G_PI * -90.0 / 180, 0.0, 0.0, rmatrix);
g3d_model_transform(model, rmatrix);
return TRUE;
}
gchar *plugin_description(G3DContext *context)
{
return g_strdup("import plugin for OpenFlight files\n");
}
gchar **plugin_extensions(G3DContext *context)
{
return g_strsplit("flt", ":", 0);
}
/*
* FLT specific
*/
FltOpcode *flt_opcode_info(guint32 opcode)
{
guint32 i;
for(i = 0; flt_opcodes[i].opcode != 0; i ++)
if(flt_opcodes[i].opcode == opcode)
return &(flt_opcodes[i]);
return NULL;
}
guint32 flt_read_typed_index(G3DStream *stream, guint32 type, gint32 *len)
{
guint32 val = 0;
switch(type) {
case 1:
val = g3d_stream_read_int8(stream);
*len -= 1;
break;
case 2:
val = g3d_stream_read_int16_be(stream);
*len -= 2;
break;
case 4:
val = g3d_stream_read_int32_be(stream);
*len -= 4;
break;
default:
g_warning("FLT: unknown index type %d\n", type);
break;
}
return val;
}
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