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#!/usr/bin/env python
"""pso2h
A small python script to generated header files from compiled ARBfp1.0 shaders
Usage: ./pso2h-runtime [options] file.pso
Options:
-o, --output header file name
-n, --name name of the shader
-h, --help display this help
-v, --verbose verbose output
file.pso compiled shader"""
import sys, os, string, getopt
__author__ = "Damien Lespiau <damien.lespiau@intel.com>"
__version__ = "0.1"
__date__ = "20090426"
__copyright__ = "Copyright (c) 2009 Intel Corporation"
__license__ = "GPL v2"
_verbose = 0
_template = """/*
* This file was generated by pso2h.
*/
#ifndef %s
#define %s
/*
* This define is the size of the shader in bytes. More precisely it's the
* sum of strlen() of every string in the array.
*/
#define %s %d
static const char *%s[] =
{
%s NULL
};
#endif
"""
def define(format, filename):
path, file = os.path.split(filename)
return format % string.upper(file.replace('.', '_').capitalize())
class PSO:
def __init__(self, filename=None, name=None):
self.filename = filename
self.name = name
def write_header(self, filename):
file = open(self.filename)
header = open(filename, "w")
__HEADER__ = define("__%s__", filename)
SIZE = define("%s_SZ", self.name)
body = ""
size = 0;
for line in file:
# skip comments
if line.startswith('#'):
continue
line = string.strip(line)
line += '\\n'
size += len(line) - 1;
body += " \"%s\",\n" % line
header.write(_template % (__HEADER__,
__HEADER__,
SIZE,
size,
self.name,
body))
def usage():
print __doc__
def main(argv):
opt_shader = None
opt_header = None
opt_name = None
try:
opts, args = getopt.getopt(argv, "hvo:n:", \
["help", "verbose", "--ouput=", "--name="])
except getopt.GetoptError:
usage()
sys.exit(1)
for opt, arg in opts:
if opt in ("-h", "--help"):
usage()
sys.exit()
elif opt in ("-v", "--verbose"):
global _verbose
_verbose = 1
elif opt in ("-o", "-output"):
opt_header = arg
elif opt in ("-n", "-name"):
opt_name = arg
if args:
opt_shader = "".join(args)
#input validation
if not opt_shader:
print "error: you must supply a shader file.\n"
usage()
sys.exit(1)
if not os.access(opt_shader, os.F_OK):
print opt_shader + ": file not found"
sys.exit(1)
file, ext = os.path.splitext(opt_shader)
if not opt_header:
opt_header = file + ".h"
if not opt_name:
path, file = os.path.split(file)
opt_name = file
pso = PSO(opt_shader, opt_name)
pso.write_header(opt_header)
if __name__ == "__main__":
main(sys.argv[1:])
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