gmio/src/gmio_stl/stl_io.c

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/****************************************************************************
** GeomIO Library
** Copyright FougSys (2 Mar. 2015)
** contact@fougsys.fr
**
** This software is a reusable library whose purpose is to provide complete
** I/O support for various CAD file formats (eg. STL)
**
** This software is governed by the CeCILL-B license under French law and
** abiding by the rules of distribution of free software. You can use,
** modify and/ or redistribute the software under the terms of the CeCILL-B
** license as circulated by CEA, CNRS and INRIA at the following URL
** "http://www.cecill.info".
****************************************************************************/
#include "stl_io.h"
#include "stl_error.h"
#include "stl_format.h"
#include "../gmio_core/error.h"
#include "../gmio_core/stream.h"
#include "../gmio_core/transfer.h"
#include "../gmio_core/internal/helper_stream.h"
int gmio_stl_read_file(
const char* filepath,
gmio_stl_mesh_creator_t* creator,
gmio_buffer_t* buffer)
{
int error = GMIO_NO_ERROR;
FILE* file = NULL;
file = fopen(filepath, "rb");
if (file != NULL) {
gmio_transfer_t trsf = { 0 };
trsf.stream = gmio_stream_stdio(file);
if (buffer != NULL)
trsf.buffer = *buffer;
error = gmio_stl_read(&trsf, creator);
fclose(file);
}
else {
error = GMIO_UNKNOWN_ERROR;
}
return error;
}
int gmio_stl_read(gmio_transfer_t *trsf, gmio_stl_mesh_creator_t *creator)
{
int error = GMIO_NO_ERROR;
if (trsf != NULL) {
const gmio_stl_format_t stl_format = gmio_stl_get_format(&trsf->stream);
switch (stl_format) {
case GMIO_STL_ASCII_FORMAT: {
error = gmio_stla_read(trsf, creator, NULL);
break;
}
case GMIO_STL_BINARY_BE_FORMAT: {
const gmio_stlb_read_options_t opts = { GMIO_BIG_ENDIAN };
error = gmio_stlb_read(trsf, creator, &opts);
break;
}
case GMIO_STL_BINARY_LE_FORMAT: {
const gmio_stlb_read_options_t opts = { GMIO_LITTLE_ENDIAN };
error = gmio_stlb_read(trsf, creator, &opts);
break;
}
case GMIO_STL_UNKNOWN_FORMAT: {
error = GMIO_STL_UNKNOWN_FORMAT_ERROR;
}
} /* end switch() */
}
else {
error = GMIO_NULL_TRANSFER_ERROR;
}
return error;
}