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https://gitlab.freedesktop.org/emersion/libdisplay-info.git
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ac857e8985
The three character PNP ID is a key to manufacturer name database. It
may be desirable to report the manufacturer's real name than just PNP ID
which can be misleading, e.g. MSI refers to Microstep and not MSI GmbH.
This builds the PNP ID database into libdisplay-info to avoid having to
find and parse files at runtime.
tool/gen-search-table.py started as a copy of Wayland 1.21.0's
src/embed.py and took influence from
10945c4ed8/conv.py
However, our script parses the text file shipped in hwdata package in
Debian (and presumably other distributions) rather than the original
CSV.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
91 lines
2.3 KiB
Python
Executable file
91 lines
2.3 KiB
Python
Executable file
#!/usr/bin/env python3
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"""
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string to string mapping table
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License: MIT
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Copyright (c) 2020 Simon Ser
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Copyright 2022 Collabora, Ltd.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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"""
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import sys
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def escape_for_c(s):
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l = [c if c.isalnum() or c in ' .,' else '\\%03o' % ord(c) for c in s]
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return ''.join(l)
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if len(sys.argv) != 4:
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print('usage: ' + sys.argv[0] + ' <infile> <outfile> <ident>', file=sys.stderr)
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sys.exit(1)
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infile = sys.argv[1]
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outfile = sys.argv[2]
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ident = sys.argv[3]
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records = {}
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with open(infile, 'r') as f:
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for line in f:
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[pnpid, name] = line.split(maxsplit=1)
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if len(pnpid) != 3:
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print("Warning: skipping invalid PNP ID %s" % (repr(pnpid)), file=sys.stderr)
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continue
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records[pnpid] = escape_for_c(name.strip())
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with open(outfile, 'w') as f:
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f.write(
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f'''
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#include <string.h>
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#include <stdint.h>
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const char *
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{ident}(const char *key);
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const char *
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{ident}(const char *key)
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{{
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size_t len = strlen(key);
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size_t i;
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uint32_t u = 0;
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if (len > 4)
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return NULL;
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for (i = 0; i < len; i++)
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u = (u << 8) | (uint8_t)key[i];
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switch (u) {{
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''')
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for id in sorted(records.keys()):
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u = 0
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for c in id:
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u = (u << 8) | ord(c)
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f.write(f' case {u}: return "{records[id]}";\n')
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f.write(
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f'''
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default:
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return NULL;
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}}
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}}
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''')
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