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#!/usr/bin/env python
#
# Copyright (c) 2011 Martin Decky
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# - Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# - Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# - The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
"""
C structure creator
"""
import sys
import os
import struct
def usage(prname):
"Print usage syntax"
print("%s <DESTINATION> <LABEL> [SOURCE ...]" % prname)
def main():
if (len(sys.argv) < 3):
usage(sys.argv[0])
return
dest = sys.argv[1]
label = sys.argv[2]
header_ctx = []
data_ctx = []
for src in sys.argv[3:]:
basename = os.path.basename(src)
symbol = basename.replace(".", "_")
print("%s -> %s" % (src, symbol))
src_in = open(src, "rb")
src_data = src_in.read()
src_in.close()
header_rec = "extern uint8_t %s[];" % symbol
header_ctx.append(header_rec)
data_rec = "uint8_t %s[] = {\n\t" % symbol
fmt = 'B'
item_size = struct.calcsize(fmt)
offset = 0
cnt = 0
while (len(src_data[offset:]) >= item_size):
byte = struct.unpack_from(fmt, src_data, offset)
if (offset > 0):
if ((cnt % 15) == 0):
data_rec += ",\n\t"
else:
data_rec += ", "
data_rec += "0x%x" % byte
offset += item_size
cnt += 1
data_rec += "\n};\n"
data_ctx.append(data_rec)
header_rec = "extern size_t %s_size;" % symbol
header_ctx.append(header_rec)
data_rec = "size_t %s_size = %u;\n" % (symbol, offset)
data_ctx.append(data_rec)
header = open("%s.h" % dest, "w")
header.write('/***************************************\n')
header.write(' * AUTO-GENERATED FILE, DO NOT EDIT!!! *\n')
header.write(' ***************************************/\n\n')
header.write("#ifndef %s_H_\n" % label)
header.write("#define %s_H_\n\n" % label)
header.write("#include <sys/types.h>\n\n")
header.write("\n".join(header_ctx))
header.write("\n\n")
header.write("#endif\n")
header.close()
data = open("%s.c" % dest, "w")
data.write('/***************************************\n')
data.write(' * AUTO-GENERATED FILE, DO NOT EDIT!!! *\n')
data.write(' ***************************************/\n\n')
data.write("#include \"%s.h\"\n\n" % dest)
data.write("\n".join(data_ctx))
data.close()
if __name__ == '__main__':
main()
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