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141 lines
4.9 KiB
Python
141 lines
4.9 KiB
Python
# ***** BEGIN LICENSE BLOCK *****
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# Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#
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# The contents of this file are subject to the Mozilla Public License Version
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# 1.1 (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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# http://www.mozilla.org/MPL/
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#
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# Software distributed under the License is distributed on an "AS IS" basis,
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# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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# for the specific language governing rights and limitations under the
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# License.
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#
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# The Original Code is Mozilla Foundation code.
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#
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# The Initial Developer of the Original Code is
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# Mozilla Foundation.
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# Portions created by the Initial Developer are Copyright (C) 2010
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# the Initial Developer. All Rights Reserved.
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#
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# Contributor(s):
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# Vladimir Vukicevic <vladimir@pobox.com>
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#
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# Alternatively, the contents of this file may be used under the terms of
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# either the GNU General Public License Version 2 or later (the "GPL"), or
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# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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# in which case the provisions of the GPL or the LGPL are applicable instead
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# of those above. If you wish to allow use of your version of this file only
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# under the terms of either the GPL or the LGPL, and not to allow others to
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# use your version of this file under the terms of the MPL, indicate your
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# decision by deleting the provisions above and replace them with the notice
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# and other provisions required by the GPL or the LGPL. If you do not delete
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# the provisions above, a recipient may use your version of this file under
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# the terms of any one of the MPL, the GPL or the LGPL.
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#
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# ***** END LICENSE BLOCK *****
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import sys
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import re
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import string
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defines = dict()
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def emitShader(fp, shadername, shaderlines):
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eolContinue = "\\n\\\n";
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fp.write("const char %s[] = \"/* %s */%s" % (shadername,shadername,eolContinue))
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for line in shaderlines:
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line.replace("\\", "\\\\")
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while line.find('$') != -1:
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expansions = re.findall('\$\S+\$', line)
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for m in expansions:
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mkey = m[1:-1]
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if not defines.has_key(mkey):
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print "Error: Undefined expansion used: '%s'" % (m,)
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sys.exit(1)
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mval = defines[mkey]
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if type(mval) == str:
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line = line.replace(m, mval)
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elif type(mval) == list:
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line = line.replace(m, eolContinue.join(mval) + eolContinue);
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else:
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print "Internal Error: Unknown type in defines array: '%s'" % (str(type(mval)),)
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fp.write("%s%s" % (line,eolContinue))
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fp.write("\";\n\n");
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def genShaders(infile, outfile):
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source = open(infile, "r").readlines()
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desthdr = open(outfile, "w+")
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desthdr.write("/* AUTOMATICALLY GENERATED */\n");
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desthdr.write("/* DO NOT EDIT! */\n\n");
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global defines
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indefine = None
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inshader = None
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inblock = False
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linebuffer = []
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for line in source:
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# strip comments, if not inblock
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if not inblock and line.startswith("//"):
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continue
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line = string.strip(line)
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if len(line) == 0:
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continue
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if line[0] == '@':
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cmd = line
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rest = ''
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if line.find(' ') != -1:
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cmd = line[0:line.find(' ')]
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rest = string.strip(line[len(cmd) + 1:])
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if cmd == "@define":
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if inblock:
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raise Exception("@define inside a block!")
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space = rest.find(' ')
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if space != -1:
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defines[rest[0:space]] = rest[space+1:]
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else:
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indefine = rest
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inblock = True
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elif cmd == "@shader":
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if inblock:
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raise Exception("@shader inside a block!")
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if len(rest) == 0:
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raise Exception("@shader without a name!")
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inshader = rest
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inblock = True
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elif cmd == "@end":
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if indefine is not None:
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if type(linebuffer) == list:
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for i in range(len(linebuffer)):
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linebuffer[i] = linebuffer[i].replace("\\", "\\\\")
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defines[indefine] = linebuffer
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elif inshader is not None:
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emitShader(desthdr, inshader, linebuffer)
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else:
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raise Exception("@end outside of a block!")
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indefine = None
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inshader = None
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inblock = None
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linebuffer = []
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else:
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raise Exception("Unknown command: %s" % (cmd,))
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else:
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if inblock:
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linebuffer.append(line)
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if (len(sys.argv) != 3):
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print "Usage: %s infile.txt outfile.h" % (sys.argv[0],)
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sys.exit(1)
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genShaders(sys.argv[1], sys.argv[2])
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