intel: genxml: add script to generate gzipped genxml

v2 (from Dylan):
   Add main function
   Add missing Copyright
   Use print_function

v3: Add actually license (Dylan)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

src/intel/Makefile.genxml.am

@@ -60,4 +60,5 @@ EXTRA_DIST += \
 	genxml/genX_pack.h \
 	genxml/gen_macros.h \
 	genxml/gen_pack_header.py \
+	genxml/gen_zipped_file.py \
 	genxml/README

src/intel/genxml/gen_zipped_file.py

@@ -0,0 +1,47 @@
+#encoding=utf-8
+#
+# Copyright © 2017 Intel Corporation
+#
+# Permission is hereby granted, free of charge, to any person obtaining a
+# copy of this software and associated documentation files (the "Software"),
+# to deal in the Software without restriction, including without limitation
+# the rights to use, copy, modify, merge, publish, distribute, sublicense,
+# and/or sell copies of the Software, and to permit persons to whom the
+# Software is furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice (including the next
+# paragraph) shall be included in all copies or substantial portions of the
+# Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+# IN THE SOFTWARE.
+#
+
+from __future__ import print_function
+import os
+import sys
+import zlib
+
+def main():
+    if len(sys.argv) < 2:
+        print("No input xml file specified")
+        sys.exit(1)
+
+    with open(sys.argv[1]) as f:
+        compressed_data = zlib.compress(f.read())
+
+    gen_name = os.path.splitext(os.path.basename(sys.argv[1]))[0]
+    print("static const uint8_t %s_xml[] = {" % gen_name)
+    print("   ", end='')
+
+    for i, c in enumerate(compressed_data, start=1):
+        print("0x%.2x, " % ord(c), end='\n   ' if not i % 12 else '')
+    print('\n};')
+
+if __name__ == '__main__':
+    main()