mirror of
https://github.com/Relintai/pandemonium_engine_minimal.git
synced 2024-11-17 22:17:19 +01:00
142 lines
3.7 KiB
Python
Executable File
142 lines
3.7 KiB
Python
Executable File
#! /usr/bin/python
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# procdl.py
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#
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# FRT - A Godot platform targeting single board computers
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# Copyright (c) 2017 Emanuele Fornara
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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#
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import re
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def parse_dl(dl, suffix):
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libname = 'unnamed'
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head = ''
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symbols = []
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types = []
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includes = []
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f_dl = open(dl, 'r')
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for line in f_dl.readlines():
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line = line.replace('\n', '')
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if libname == 'unnamed':
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m = re.search(r'^//\s*(.*)\.dl\s*$', line)
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if m:
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libname = m.group(1)
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head += '// ' + libname + suffix
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head += ' - File generated by procdl.py - DO NOT EDIT\n'
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continue
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m = re.search(r'^.*___(.*)___.*$', line)
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if not m:
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if re.search(r'^#include', line):
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includes.append(line)
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else:
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head += line + '\n'
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continue
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s = m.group(1)
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symbols.append(s)
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ls = libname + '_' + s
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types.append(line.replace('___' + s + '___', 'FRT_FN_' + ls))
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f_dl.close()
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return (libname, head, symbols, types, includes)
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def build_h(dl, h):
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libname, head, symbols, types, includes = parse_dl(dl, '.gen.h')
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f = open(h, 'w')
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f.write(head)
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def out(s=None):
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if s:
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f.write(s)
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f.write('\n')
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out('#ifndef FRT_DL_SKIP')
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for s in includes:
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out(s)
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out()
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for s in types:
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out(s)
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out()
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for s in symbols:
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ls = libname + '_' + s
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out('#define ' + s + ' frt_fn_' + ls)
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out()
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for s in symbols:
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ls = libname + '_' + s
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out('extern FRT_FN_' + ls + ' frt_fn_' + ls + ';')
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out()
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out('#endif')
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out('extern bool frt_load_' + libname + '(const char *filename);')
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f.close()
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def build_cpp(dl, cpp):
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libname, head, symbols, types, includes = parse_dl(dl, '.gen.cpp')
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f = open(cpp, 'w')
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f.write(head)
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assignments = ''
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for s in symbols:
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ls = libname + '_' + s
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assignments += 'FRT_FN_' + ls + ' frt_fn_' + ls + ' = 0;\n'
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resolutions = ''
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for s in symbols:
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ls = libname + '_' + s
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resolutions += '\tfrt_fn_' + ls + ' = (FRT_FN_' + ls + ')'
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resolutions += 'dlsym(lib, "' + s + '");\n'
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f.write("""\
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#include "%(libname)s.gen.h"
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#include <stdio.h>
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#include <dlfcn.h>
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static void *lib = 0;
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%(assignments)s
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bool frt_load_%(libname)s(const char *filename) {
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if (lib)
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return true;
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lib = dlopen(filename, RTLD_LAZY);
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if (!lib) {
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fprintf(stderr, "frt: dlopen failed for '%%s'.\\n", filename);
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return false;
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}
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%(resolutions)s
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return true;
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}
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""" % {
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'libname': libname,
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'assignments': assignments[:-1],
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'resolutions': resolutions[:-1]
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})
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f.close()
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def build_cpp_action(target, source, env):
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build_cpp(str(source[0]), str(target[0]))
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def build_h_action(target, source, env):
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build_h(str(source[0]), str(target[0]))
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if __name__ == '__main__':
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import sys
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for s in sys.argv[1:]:
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sys.stdout.write('Processing ' + s + '... ')
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build_cpp(s, s.replace('.dl', '.gen.cpp'))
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build_h(s, s.replace('.dl', '.gen.h'))
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sys.stdout.write('done.\n')
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