diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/libcamera/formats.h.in | 44 | ||||
| -rwxr-xr-x | include/libcamera/gen-formats.py | 118 | ||||
| -rw-r--r-- | include/libcamera/meson.build | 22 |
3 files changed, 184 insertions, 0 deletions
diff --git a/include/libcamera/formats.h.in b/include/libcamera/formats.h.in new file mode 100644 index 00000000..8e7b9581 --- /dev/null +++ b/include/libcamera/formats.h.in @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2020, Google Inc. + * + * formats.h - Formats + * + * This file is auto-generated. Do not edit. + */ +#ifndef __LIBCAMERA_FORMATS_H__ +#define __LIBCAMERA_FORMATS_H__ + +#include <stdint.h> + +#include <libcamera/pixel_format.h> + +namespace libcamera { + +namespace formats { + +namespace { + +constexpr uint32_t __fourcc(char a, char b, char c, char d) +{ + return (static_cast<uint32_t>(a) << 0) | + (static_cast<uint32_t>(b) << 8) | + (static_cast<uint32_t>(c) << 16) | + (static_cast<uint32_t>(d) << 24); +} + +constexpr uint64_t __mod(unsigned int vendor, unsigned int mod) +{ + return (static_cast<uint64_t>(vendor) << 56) | + (static_cast<uint64_t>(mod) << 0); +} + +} /* namespace */ + +${formats} + +} /* namespace formats */ + +} /* namespace libcamera */ + +#endif /* __LIBCAMERA_FORMATS_H__ */ diff --git a/include/libcamera/gen-formats.py b/include/libcamera/gen-formats.py new file mode 100755 index 00000000..60dcecc3 --- /dev/null +++ b/include/libcamera/gen-formats.py @@ -0,0 +1,118 @@ +#!/usr/bin/env python3 +# SPDX-License-Identifier: GPL-2.0-or-later +# Copyright (C) 2020, Google Inc. +# +# Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com> +# +# gen-formats.py - Generate formats definitions from YAML + +import argparse +import re +import string +import sys +import yaml + + +class DRMFourCC(object): + format_regex = re.compile(r"#define (DRM_FORMAT_[A-Z0-9_]+)[ \t]+fourcc_code\(('.', '.', '.', '.')\)") + mod_vendor_regex = re.compile(r"#define DRM_FORMAT_MOD_VENDOR_([A-Z0-9_]+)[ \t]+([0-9a-fA-Fx]+)") + mod_regex = re.compile(r"#define ([A-Za-z0-9_]+)[ \t]+fourcc_mod_code\(([A-Z0-9_]+), ([0-9a-fA-Fx]+)\)") + + def __init__(self, filename): + self.formats = {} + self.vendors = {} + self.mods = {} + + for line in open(filename, 'rb').readlines(): + line = line.decode('utf-8') + + match = DRMFourCC.format_regex.match(line) + if match: + format, fourcc = match.groups() + self.formats[format] = fourcc + continue + + match = DRMFourCC.mod_vendor_regex.match(line) + if match: + vendor, value = match.groups() + self.vendors[vendor] = int(value, 0) + continue + + match = DRMFourCC.mod_regex.match(line) + if match: + mod, vendor, value = match.groups() + self.mods[mod] = (vendor, int(value, 0)) + continue + + def fourcc(self, name): + return self.formats[name] + + def mod(self, name): + vendor, value = self.mods[name] + return self.vendors[vendor], value + + +def generate_h(formats, drm_fourcc): + template = string.Template('constexpr PixelFormat ${name}{ __fourcc(${fourcc}), __mod(${mod}) };') + + fmts = [] + + for format in formats: + name, format = format.popitem() + + data = { + 'name': name, + 'fourcc': drm_fourcc.fourcc(format['fourcc']), + 'mod': '0, 0', + } + + mod = format.get('mod') + if mod: + data['mod'] = '%u, %u' % drm_fourcc.mod(mod) + + fmts.append(template.substitute(data)) + + return {'formats': '\n'.join(fmts)} + + +def fill_template(template, data): + + template = open(template, 'rb').read() + template = template.decode('utf-8') + template = string.Template(template) + return template.substitute(data) + + +def main(argv): + + # Parse command line arguments + parser = argparse.ArgumentParser() + parser.add_argument('-o', dest='output', metavar='file', type=str, + help='Output file name. Defaults to standard output if not specified.') + parser.add_argument('input', type=str, + help='Input file name.') + parser.add_argument('template', type=str, + help='Template file name.') + parser.add_argument('drm_fourcc', type=str, + help='Path to drm_fourcc.h.') + args = parser.parse_args(argv[1:]) + + data = open(args.input, 'rb').read() + formats = yaml.safe_load(data)['formats'] + drm_fourcc = DRMFourCC(args.drm_fourcc) + + data = generate_h(formats, drm_fourcc) + data = fill_template(args.template, data) + + if args.output: + output = open(args.output, 'wb') + output.write(data.encode('utf-8')) + output.close() + else: + sys.stdout.write(data) + + return 0 + + +if __name__ == '__main__': + sys.exit(main(sys.argv)) diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build index 73c5b999..cdb8e037 100644 --- a/include/libcamera/meson.build +++ b/include/libcamera/meson.build @@ -29,6 +29,11 @@ subdir('ipa') install_headers(libcamera_public_headers, subdir : include_dir) +# +# Generate headers from templates. +# + +# control_ids.h and property_ids.h gen_controls = files('../../src/libcamera/gen-controls.py') control_source_files = [ @@ -51,6 +56,22 @@ endforeach libcamera_public_headers += control_headers +# formats.h +gen_formats = files('gen-formats.py') + +formats_h = custom_target('formats_h', + input : files( + '../../src/libcamera/formats.yaml', + 'formats.h.in', + '../linux/drm_fourcc.h' + ), + output : 'formats.h', + command : [gen_formats, '-o', '@OUTPUT@', '@INPUT@'], + install : true, + install_dir : join_paths('include', include_dir)) +libcamera_public_headers += formats_h + +# libcamera.h gen_header = files('gen-header.sh') libcamera_h = custom_target('gen-header', @@ -62,6 +83,7 @@ libcamera_h = custom_target('gen-header', libcamera_public_headers += libcamera_h +# version.h version = libcamera_version.split('.') libcamera_version_config = configuration_data() libcamera_version_config.set('LIBCAMERA_VERSION_MAJOR', version[0]) |