73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
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* GDSII-Converter
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* Copyright (C) 2018 Mario Hüttel <mario.huettel@gmx.net>
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*
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* This file is part of GDSII-Converter.
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*
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* GDSII-Converter is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* GDSII-Converter is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GDSII-Converter. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file external-renderer.c
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* @brief This file implements the dynamic library loading for the external rendering feature
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* @author Mario Hüttel <mario.huettel@gmx.net>
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*/
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/**
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* @addtogroup external-renderer
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* @{
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*/
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#include <dlfcn.h>
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#include <stdio.h>
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#include <gds-render/external-renderer.h>
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int external_renderer_render_cell(struct gds_cell *toplevel_cell, GList *layer_info_list,
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char *output_file, char *so_path)
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{
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int (*so_render_func)(struct gds_cell *, GList *, char *) = NULL;
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void *so_handle = NULL;
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char *error_msg;
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int ret = 0;
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/* Check parameter sanity */
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if (!output_file || !so_path || !toplevel_cell || !layer_info_list)
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return -3000;
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/* Load shared object */
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so_handle = dlopen(so_path, RTLD_LAZY);
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if (!so_handle) {
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printf("Could not load external library '%s'\nDetailed error is:\n%s\n", so_path, dlerror());
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return -2000;
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}
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/* Load symbol from library */
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so_render_func = (int (*)(struct gds_cell *, GList *, char *))dlsym(so_handle, EXTERNAL_LIBRARY_FUNCTION);
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error_msg = dlerror();
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if (error_msg != NULL) {
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printf("Rendering function not found in library:\n%s\n", error_msg);
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goto ret_close_so_handle;
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}
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/* Execute */
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if (so_render_func)
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so_render_func(toplevel_cell, layer_info_list, output_file);
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ret_close_so_handle:
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dlclose(so_handle);
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return ret;
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}
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/** @} */
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