[libcamera-devel,v3,3/7] build: controls: Rework how controls and properties are generated
diff mbox series

Message ID 20231124123713.22519-4-naush@raspberrypi.com
State Accepted
Headers show
Series
  • Vendor controls and properties
Related show

Commit Message

Naushir Patuck Nov. 24, 2023, 12:37 p.m. UTC
Add support for using separate YAML files for controls and properties
generation. The mapping of vendor/pipeline handler to control file is
done through the controls_map variable in include/libcamera/meson.build.

This simplifies management of vendor control definitions and avoids
possible merge conflicts when changing the control_ids.yaml file for
core and draft controls. With this change, libcamera and draft controls
and properties files are designated the 'libcamera' vendor tag.

In this change, we also rename control_ids.yaml -> control_ids_core.yaml
and property_ids.yaml -> property_ids_core.yaml to designate these as
core libcamera controls.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
---
 Documentation/guides/pipeline-handler.rst     |  8 +--
 include/libcamera/meson.build                 | 52 +++++++++++++++----
 meson.build                                   |  2 +
 ...control_ids.yaml => control_ids_core.yaml} |  0
 src/libcamera/meson.build                     | 21 ++++++--
 ...operty_ids.yaml => property_ids_core.yaml} |  0
 src/py/libcamera/gen-py-controls.py           | 10 ++--
 src/py/libcamera/meson.build                  | 12 ++++-
 utils/gen-controls.py                         | 13 +++--
 9 files changed, 88 insertions(+), 30 deletions(-)
 rename src/libcamera/{control_ids.yaml => control_ids_core.yaml} (100%)
 rename src/libcamera/{property_ids.yaml => property_ids_core.yaml} (100%)

Comments

Jacopo Mondi Nov. 27, 2023, 3:38 p.m. UTC | #1
Hi Naush

On Fri, Nov 24, 2023 at 12:37:09PM +0000, Naushir Patuck via libcamera-devel wrote:
> Add support for using separate YAML files for controls and properties
> generation. The mapping of vendor/pipeline handler to control file is
> done through the controls_map variable in include/libcamera/meson.build.
>
> This simplifies management of vendor control definitions and avoids
> possible merge conflicts when changing the control_ids.yaml file for
> core and draft controls. With this change, libcamera and draft controls
> and properties files are designated the 'libcamera' vendor tag.
>
> In this change, we also rename control_ids.yaml -> control_ids_core.yaml
> and property_ids.yaml -> property_ids_core.yaml to designate these as
> core libcamera controls.
>
> Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
> ---
>  Documentation/guides/pipeline-handler.rst     |  8 +--
>  include/libcamera/meson.build                 | 52 +++++++++++++++----
>  meson.build                                   |  2 +
>  ...control_ids.yaml => control_ids_core.yaml} |  0
>  src/libcamera/meson.build                     | 21 ++++++--
>  ...operty_ids.yaml => property_ids_core.yaml} |  0
>  src/py/libcamera/gen-py-controls.py           | 10 ++--
>  src/py/libcamera/meson.build                  | 12 ++++-
>  utils/gen-controls.py                         | 13 +++--
>  9 files changed, 88 insertions(+), 30 deletions(-)
>  rename src/libcamera/{control_ids.yaml => control_ids_core.yaml} (100%)
>  rename src/libcamera/{property_ids.yaml => property_ids_core.yaml} (100%)
>
> diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
> index 10b9c75c2a7f..66d428a19c4f 100644
> --- a/Documentation/guides/pipeline-handler.rst
> +++ b/Documentation/guides/pipeline-handler.rst
> @@ -587,12 +587,12 @@ immutable properties of the ``Camera`` device.
>
>  The libcamera controls and properties are defined in YAML form which is
>  processed to automatically generate documentation and interfaces. Controls are
> -defined by the src/libcamera/`control_ids.yaml`_ file and camera properties
> -are defined by src/libcamera/`properties_ids.yaml`_.
> +defined by the src/libcamera/`control_ids_core.yaml`_ file and camera properties
> +are defined by src/libcamera/`properties_ids_core.yaml`_.
>
>  .. _controls framework: https://libcamera.org/api-html/controls_8h.html
> -.. _control_ids.yaml: https://libcamera.org/api-html/control__ids_8h.html
> -.. _properties_ids.yaml: https://libcamera.org/api-html/property__ids_8h.html
> +.. _control_ids_core.yaml: https://libcamera.org/api-html/control__ids_8h.html
> +.. _properties_ids_core.yaml: https://libcamera.org/api-html/property__ids_8h.html
>
>  Pipeline handlers can optionally register the list of controls an application
>  can set as well as a list of immutable camera properties. Being both
> diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
> index 5fb772e6dd14..a763c8ff4344 100644
> --- a/include/libcamera/meson.build
> +++ b/include/libcamera/meson.build
> @@ -32,22 +32,56 @@ install_headers(libcamera_public_headers,
>
>  libcamera_headers_install_dir = get_option('includedir') / libcamera_include_dir
>
> -# control_ids.h and property_ids.h and associated modes
> -control_source_files = {
> -    'control_ids': 'controls',
> -    'property_ids': 'properties',
> +controls_map = {
> +    'controls': {
> +        'core': 'control_ids_core.yaml',
> +    },
> +
> +    'properties': {
> +        'core': 'property_ids_core.yaml',
> +    }
>  }
>
>  control_headers = []
> +controls_files = []
> +properties_files = []
> +
> +foreach mode, entry : controls_map
> +    files_list = []
> +    input_files = []
> +    foreach vendor, header : entry
> +        if vendor != 'core' and vendor != 'draft'
> +            if vendor not in pipelines
> +                message('vendor not in pipelines')

This gives

Message: vendor not in pipelines
Message: vendor not in pipelines

in the meson output log, that's not really useful imo

> +                continue
> +            endif
> +        endif
> +
> +        if header in files_list
> +            message('header in files list')
> +            continue
> +        endif
> +
> +        files_list += header
> +        input_files += files('../../src/libcamera/' + header)
> +    endforeach
> +
> +    outfile = ''
> +    if mode == 'controls'
> +        outfile = 'control_ids.h'
> +        controls_files += files_list
> +    else
> +        outfile = 'property_ids.h'
> +        properties_files += files_list
> +    endif
>
> -foreach header, mode : control_source_files
> -    input_files = files('../../src/libcamera/' + header +'.yaml')
> -    template_file = files(header + '.h.in')
> +    template_file = files(outfile + '.in')
>      control_headers += custom_target(header + '_h',
>                                       input : input_files,
> -                                     output : header + '.h',
> +                                     output : outfile,
>                                       command : [gen_controls, '-o', '@OUTPUT@',
> -                                                '--mode', mode, '-t', template_file, '@INPUT@'],
> +                                                '--mode', mode, '-t', template_file,
> +                                                '@INPUT@'],
>                                       install : true,
>                                       install_dir : libcamera_headers_install_dir)
>  endforeach
> diff --git a/meson.build b/meson.build
> index e9a1c7e360ce..ee57cb780149 100644
> --- a/meson.build
> +++ b/meson.build
> @@ -267,6 +267,8 @@ py_mod.find_installation('python3', modules : py_modules)
>  summary({
>              'Enabled pipelines': pipelines,
>              'Enabled IPA modules': enabled_ipa_names,
> +            'Controls files': controls_files,
> +            'Properties files': properties_files,

    Controls files           : control_ids_draft.yaml
                               control_ids_core.yaml
    Properties files         : property_ids_draft.yaml
                               property_ids_core.yaml
This (not from this patch but with the whole series applied) is more
useful indeed!

>              'Hotplug support': libudev.found(),
>              'Tracing support': tracing_enabled,
>              'Android support': android_enabled,
> diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids_core.yaml
> similarity index 100%
> rename from src/libcamera/control_ids.yaml
> rename to src/libcamera/control_ids_core.yaml
> diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
> index 05ee38daf22b..6d9902e6ffd1 100644
> --- a/src/libcamera/meson.build
> +++ b/src/libcamera/meson.build
> @@ -127,12 +127,23 @@ endif
>
>  control_sources = []
>
> -foreach source, mode : control_source_files
> -    input_files = files(source +'.yaml')
> -    template_file = files(source + '.cpp.in')
> -    control_sources += custom_target(source + '_cpp',
> +controls_mode_files = {
> +    'controls' : controls_files,
> +    'properties' : properties_files,
> +}
> +
> +foreach mode, input_files : controls_mode_files
> +    input_files = files(input_files)
> +
> +    if mode == 'controls'
> +        template_file = files('control_ids.cpp.in')
> +    else
> +        template_file = files('property_ids.cpp.in')
> +    endif
> +
> +    control_sources += custom_target(mode + '_cpp',
>                                       input : input_files,
> -                                     output : source + '.cpp',
> +                                     output : mode + '_ids.cpp',
>                                       command : [gen_controls, '-o', '@OUTPUT@',
>                                                  '--mode', mode, '-t', template_file, '@INPUT@'])
>  endforeach
> diff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids_core.yaml
> similarity index 100%
> rename from src/libcamera/property_ids.yaml
> rename to src/libcamera/property_ids_core.yaml
> diff --git a/src/py/libcamera/gen-py-controls.py b/src/py/libcamera/gen-py-controls.py
> index cfcfd4d16acf..8ae8d5126e39 100755
> --- a/src/py/libcamera/gen-py-controls.py
> +++ b/src/py/libcamera/gen-py-controls.py
> @@ -95,7 +95,7 @@ def main(argv):
>                          help='Output file name. Defaults to standard output if not specified.')
>      parser.add_argument('--template', '-t', type=str, required=True,
>                          help='Template file name.')
> -    parser.add_argument('input', type=str,
> +    parser.add_argument('input', type=str, nargs='+',
>                          help='Input file name.')
>      args = parser.parse_args(argv[1:])
>
> @@ -103,11 +103,11 @@ def main(argv):
>          print(f'Invalid mode option "{args.mode}"', file=sys.stderr)
>          return -1
>
> -    data = open(args.input, 'rb').read()
> -
>      controls = {}
> -    vendor = yaml.safe_load(data)['vendor']
> -    controls[vendor] = yaml.safe_load(data)['controls']
> +    for input in args.input:
> +        data = open(input, 'rb').read()
> +        vendor = yaml.safe_load(data)['vendor']
> +        controls[vendor] = yaml.safe_load(data)['controls']
>
>      data = generate_py(controls, args.mode)
>
> diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build
> index 1c3ea1843ac0..31af63ec0dc6 100644
> --- a/src/py/libcamera/meson.build
> +++ b/src/py/libcamera/meson.build
> @@ -28,11 +28,15 @@ pycamera_sources = files([
>
>  # Generate controls
>
> -gen_py_controls_input_files = files('../../libcamera/control_ids.yaml')
> +gen_py_controls_input_files = []
>  gen_py_controls_template = files('py_controls_generated.cpp.in')
>
>  gen_py_controls = files('gen-py-controls.py')
>
> +foreach file : controls_files
> +    gen_py_controls_input_files += files('../../libcamera/' + file)
> +endforeach
> +
>  pycamera_sources += custom_target('py_gen_controls',
>                                    input : gen_py_controls_input_files,
>                                    output : ['py_controls_generated.cpp'],
> @@ -41,9 +45,13 @@ pycamera_sources += custom_target('py_gen_controls',
>
>  # Generate properties
>
> -gen_py_property_enums_input_files = files('../../libcamera/property_ids.yaml')
> +gen_py_property_enums_input_files = []
>  gen_py_properties_template = files('py_properties_generated.cpp.in')
>
> +foreach file : properties_files
> +    gen_py_property_enums_input_files += files('../../libcamera/' + file)
> +endforeach
> +
>  pycamera_sources += custom_target('py_gen_properties',
>                                    input : gen_py_property_enums_input_files,
>                                    output : ['py_properties_generated.cpp'],
> diff --git a/utils/gen-controls.py b/utils/gen-controls.py
> index 6680ecf84acb..30c58f35473c 100755
> --- a/utils/gen-controls.py
> +++ b/utils/gen-controls.py
> @@ -12,6 +12,7 @@ import operator
>  import string
>  import sys
>  import yaml
> +import os
>
>
>  class ControlEnum(object):
> @@ -339,15 +340,17 @@ def main(argv):
>                          help='Output file name. Defaults to standard output if not specified.')
>      parser.add_argument('--template', '-t', dest='template', type=str, required=True,
>                          help='Template file name.')
> -    parser.add_argument('input', type=str,
> +    parser.add_argument('input', type=str, nargs='+',
>                          help='Input file name.')
>
>      args = parser.parse_args(argv[1:])
>
> -    data = open(args.input, 'rb').read()
> -    vendor = yaml.safe_load(data)['vendor']
> -    controls = yaml.safe_load(data)['controls']
> -    controls = [Control(*ctrl.popitem(), vendor) for ctrl in controls]
> +    controls = []
> +    for input in args.input:
> +        data = open(input, 'rb').read()
> +        vendor = yaml.safe_load(data)['vendor']
> +        ctrls = yaml.safe_load(data)['controls']
> +        controls = controls + [Control(*ctrl.popitem(), vendor) for ctrl in ctrls]

How does thi work in Python, should data be closed ?

Anyway, this all looks good, with the above 'message' dropped

Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>

Thanks
  j

>
>      if args.template.endswith('.cpp.in'):
>          data = generate_cpp(controls)
> --
> 2.34.1
>
Naushir Patuck Nov. 27, 2023, 3:45 p.m. UTC | #2
Hi Jacopo,

Thank you for the feedback.

On Mon, 27 Nov 2023 at 15:38, Jacopo Mondi
<jacopo.mondi@ideasonboard.com> wrote:
>
> Hi Naush
>
> On Fri, Nov 24, 2023 at 12:37:09PM +0000, Naushir Patuck via libcamera-devel wrote:
> > Add support for using separate YAML files for controls and properties
> > generation. The mapping of vendor/pipeline handler to control file is
> > done through the controls_map variable in include/libcamera/meson.build.
> >
> > This simplifies management of vendor control definitions and avoids
> > possible merge conflicts when changing the control_ids.yaml file for
> > core and draft controls. With this change, libcamera and draft controls
> > and properties files are designated the 'libcamera' vendor tag.
> >
> > In this change, we also rename control_ids.yaml -> control_ids_core.yaml
> > and property_ids.yaml -> property_ids_core.yaml to designate these as
> > core libcamera controls.
> >
> > Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
> > ---
> >  Documentation/guides/pipeline-handler.rst     |  8 +--
> >  include/libcamera/meson.build                 | 52 +++++++++++++++----
> >  meson.build                                   |  2 +
> >  ...control_ids.yaml => control_ids_core.yaml} |  0
> >  src/libcamera/meson.build                     | 21 ++++++--
> >  ...operty_ids.yaml => property_ids_core.yaml} |  0
> >  src/py/libcamera/gen-py-controls.py           | 10 ++--
> >  src/py/libcamera/meson.build                  | 12 ++++-
> >  utils/gen-controls.py                         | 13 +++--
> >  9 files changed, 88 insertions(+), 30 deletions(-)
> >  rename src/libcamera/{control_ids.yaml => control_ids_core.yaml} (100%)
> >  rename src/libcamera/{property_ids.yaml => property_ids_core.yaml} (100%)
> >
> > diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
> > index 10b9c75c2a7f..66d428a19c4f 100644
> > --- a/Documentation/guides/pipeline-handler.rst
> > +++ b/Documentation/guides/pipeline-handler.rst
> > @@ -587,12 +587,12 @@ immutable properties of the ``Camera`` device.
> >
> >  The libcamera controls and properties are defined in YAML form which is
> >  processed to automatically generate documentation and interfaces. Controls are
> > -defined by the src/libcamera/`control_ids.yaml`_ file and camera properties
> > -are defined by src/libcamera/`properties_ids.yaml`_.
> > +defined by the src/libcamera/`control_ids_core.yaml`_ file and camera properties
> > +are defined by src/libcamera/`properties_ids_core.yaml`_.
> >
> >  .. _controls framework: https://libcamera.org/api-html/controls_8h.html
> > -.. _control_ids.yaml: https://libcamera.org/api-html/control__ids_8h.html
> > -.. _properties_ids.yaml: https://libcamera.org/api-html/property__ids_8h.html
> > +.. _control_ids_core.yaml: https://libcamera.org/api-html/control__ids_8h.html
> > +.. _properties_ids_core.yaml: https://libcamera.org/api-html/property__ids_8h.html
> >
> >  Pipeline handlers can optionally register the list of controls an application
> >  can set as well as a list of immutable camera properties. Being both
> > diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
> > index 5fb772e6dd14..a763c8ff4344 100644
> > --- a/include/libcamera/meson.build
> > +++ b/include/libcamera/meson.build
> > @@ -32,22 +32,56 @@ install_headers(libcamera_public_headers,
> >
> >  libcamera_headers_install_dir = get_option('includedir') / libcamera_include_dir
> >
> > -# control_ids.h and property_ids.h and associated modes
> > -control_source_files = {
> > -    'control_ids': 'controls',
> > -    'property_ids': 'properties',
> > +controls_map = {
> > +    'controls': {
> > +        'core': 'control_ids_core.yaml',
> > +    },
> > +
> > +    'properties': {
> > +        'core': 'property_ids_core.yaml',
> > +    }
> >  }
> >
> >  control_headers = []
> > +controls_files = []
> > +properties_files = []
> > +
> > +foreach mode, entry : controls_map
> > +    files_list = []
> > +    input_files = []
> > +    foreach vendor, header : entry
> > +        if vendor != 'core' and vendor != 'draft'
> > +            if vendor not in pipelines
> > +                message('vendor not in pipelines')
>
> This gives
>
> Message: vendor not in pipelines
> Message: vendor not in pipelines
>
> in the meson output log, that's not really useful imo

Indeed.  This was my debug message and should really not be in there!

>
> > +                continue
> > +            endif
> > +        endif
> > +
> > +        if header in files_list
> > +            message('header in files list')
> > +            continue
> > +        endif
> > +
> > +        files_list += header
> > +        input_files += files('../../src/libcamera/' + header)
> > +    endforeach
> > +
> > +    outfile = ''
> > +    if mode == 'controls'
> > +        outfile = 'control_ids.h'
> > +        controls_files += files_list
> > +    else
> > +        outfile = 'property_ids.h'
> > +        properties_files += files_list
> > +    endif
> >
> > -foreach header, mode : control_source_files
> > -    input_files = files('../../src/libcamera/' + header +'.yaml')
> > -    template_file = files(header + '.h.in')
> > +    template_file = files(outfile + '.in')
> >      control_headers += custom_target(header + '_h',
> >                                       input : input_files,
> > -                                     output : header + '.h',
> > +                                     output : outfile,
> >                                       command : [gen_controls, '-o', '@OUTPUT@',
> > -                                                '--mode', mode, '-t', template_file, '@INPUT@'],
> > +                                                '--mode', mode, '-t', template_file,
> > +                                                '@INPUT@'],
> >                                       install : true,
> >                                       install_dir : libcamera_headers_install_dir)
> >  endforeach
> > diff --git a/meson.build b/meson.build
> > index e9a1c7e360ce..ee57cb780149 100644
> > --- a/meson.build
> > +++ b/meson.build
> > @@ -267,6 +267,8 @@ py_mod.find_installation('python3', modules : py_modules)
> >  summary({
> >              'Enabled pipelines': pipelines,
> >              'Enabled IPA modules': enabled_ipa_names,
> > +            'Controls files': controls_files,
> > +            'Properties files': properties_files,
>
>     Controls files           : control_ids_draft.yaml
>                                control_ids_core.yaml
>     Properties files         : property_ids_draft.yaml
>                                property_ids_core.yaml
> This (not from this patch but with the whole series applied) is more
> useful indeed!
>
> >              'Hotplug support': libudev.found(),
> >              'Tracing support': tracing_enabled,
> >              'Android support': android_enabled,
> > diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids_core.yaml
> > similarity index 100%
> > rename from src/libcamera/control_ids.yaml
> > rename to src/libcamera/control_ids_core.yaml
> > diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
> > index 05ee38daf22b..6d9902e6ffd1 100644
> > --- a/src/libcamera/meson.build
> > +++ b/src/libcamera/meson.build
> > @@ -127,12 +127,23 @@ endif
> >
> >  control_sources = []
> >
> > -foreach source, mode : control_source_files
> > -    input_files = files(source +'.yaml')
> > -    template_file = files(source + '.cpp.in')
> > -    control_sources += custom_target(source + '_cpp',
> > +controls_mode_files = {
> > +    'controls' : controls_files,
> > +    'properties' : properties_files,
> > +}
> > +
> > +foreach mode, input_files : controls_mode_files
> > +    input_files = files(input_files)
> > +
> > +    if mode == 'controls'
> > +        template_file = files('control_ids.cpp.in')
> > +    else
> > +        template_file = files('property_ids.cpp.in')
> > +    endif
> > +
> > +    control_sources += custom_target(mode + '_cpp',
> >                                       input : input_files,
> > -                                     output : source + '.cpp',
> > +                                     output : mode + '_ids.cpp',
> >                                       command : [gen_controls, '-o', '@OUTPUT@',
> >                                                  '--mode', mode, '-t', template_file, '@INPUT@'])
> >  endforeach
> > diff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids_core.yaml
> > similarity index 100%
> > rename from src/libcamera/property_ids.yaml
> > rename to src/libcamera/property_ids_core.yaml
> > diff --git a/src/py/libcamera/gen-py-controls.py b/src/py/libcamera/gen-py-controls.py
> > index cfcfd4d16acf..8ae8d5126e39 100755
> > --- a/src/py/libcamera/gen-py-controls.py
> > +++ b/src/py/libcamera/gen-py-controls.py
> > @@ -95,7 +95,7 @@ def main(argv):
> >                          help='Output file name. Defaults to standard output if not specified.')
> >      parser.add_argument('--template', '-t', type=str, required=True,
> >                          help='Template file name.')
> > -    parser.add_argument('input', type=str,
> > +    parser.add_argument('input', type=str, nargs='+',
> >                          help='Input file name.')
> >      args = parser.parse_args(argv[1:])
> >
> > @@ -103,11 +103,11 @@ def main(argv):
> >          print(f'Invalid mode option "{args.mode}"', file=sys.stderr)
> >          return -1
> >
> > -    data = open(args.input, 'rb').read()
> > -
> >      controls = {}
> > -    vendor = yaml.safe_load(data)['vendor']
> > -    controls[vendor] = yaml.safe_load(data)['controls']
> > +    for input in args.input:
> > +        data = open(input, 'rb').read()
> > +        vendor = yaml.safe_load(data)['vendor']
> > +        controls[vendor] = yaml.safe_load(data)['controls']
> >
> >      data = generate_py(controls, args.mode)
> >
> > diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build
> > index 1c3ea1843ac0..31af63ec0dc6 100644
> > --- a/src/py/libcamera/meson.build
> > +++ b/src/py/libcamera/meson.build
> > @@ -28,11 +28,15 @@ pycamera_sources = files([
> >
> >  # Generate controls
> >
> > -gen_py_controls_input_files = files('../../libcamera/control_ids.yaml')
> > +gen_py_controls_input_files = []
> >  gen_py_controls_template = files('py_controls_generated.cpp.in')
> >
> >  gen_py_controls = files('gen-py-controls.py')
> >
> > +foreach file : controls_files
> > +    gen_py_controls_input_files += files('../../libcamera/' + file)
> > +endforeach
> > +
> >  pycamera_sources += custom_target('py_gen_controls',
> >                                    input : gen_py_controls_input_files,
> >                                    output : ['py_controls_generated.cpp'],
> > @@ -41,9 +45,13 @@ pycamera_sources += custom_target('py_gen_controls',
> >
> >  # Generate properties
> >
> > -gen_py_property_enums_input_files = files('../../libcamera/property_ids.yaml')
> > +gen_py_property_enums_input_files = []
> >  gen_py_properties_template = files('py_properties_generated.cpp.in')
> >
> > +foreach file : properties_files
> > +    gen_py_property_enums_input_files += files('../../libcamera/' + file)
> > +endforeach
> > +
> >  pycamera_sources += custom_target('py_gen_properties',
> >                                    input : gen_py_property_enums_input_files,
> >                                    output : ['py_properties_generated.cpp'],
> > diff --git a/utils/gen-controls.py b/utils/gen-controls.py
> > index 6680ecf84acb..30c58f35473c 100755
> > --- a/utils/gen-controls.py
> > +++ b/utils/gen-controls.py
> > @@ -12,6 +12,7 @@ import operator
> >  import string
> >  import sys
> >  import yaml
> > +import os
> >
> >
> >  class ControlEnum(object):
> > @@ -339,15 +340,17 @@ def main(argv):
> >                          help='Output file name. Defaults to standard output if not specified.')
> >      parser.add_argument('--template', '-t', dest='template', type=str, required=True,
> >                          help='Template file name.')
> > -    parser.add_argument('input', type=str,
> > +    parser.add_argument('input', type=str, nargs='+',
> >                          help='Input file name.')
> >
> >      args = parser.parse_args(argv[1:])
> >
> > -    data = open(args.input, 'rb').read()
> > -    vendor = yaml.safe_load(data)['vendor']
> > -    controls = yaml.safe_load(data)['controls']
> > -    controls = [Control(*ctrl.popitem(), vendor) for ctrl in controls]
> > +    controls = []
> > +    for input in args.input:
> > +        data = open(input, 'rb').read()
> > +        vendor = yaml.safe_load(data)['vendor']
> > +        ctrls = yaml.safe_load(data)['controls']
> > +        controls = controls + [Control(*ctrl.popitem(), vendor) for ctrl in ctrls]
>
> How does thi work in Python, should data be closed ?

I think it does get closed since we don't hold onto a reference to the
open() return value.  But please correct me if that is wrong since I
was (blindly) following what the existing code was doing.

Regards,
Naush

>
> Anyway, this all looks good, with the above 'message' dropped
>
> Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
>
> Thanks
>   j
>
> >
> >      if args.template.endswith('.cpp.in'):
> >          data = generate_cpp(controls)
> > --
> > 2.34.1
> >
Kieran Bingham Nov. 28, 2023, 3:09 p.m. UTC | #3
Quoting Naushir Patuck via libcamera-devel (2023-11-27 15:45:35)
> Hi Jacopo,
> 
> Thank you for the feedback.
> 
> On Mon, 27 Nov 2023 at 15:38, Jacopo Mondi
> <jacopo.mondi@ideasonboard.com> wrote:
> >
> > Hi Naush
> >
> > On Fri, Nov 24, 2023 at 12:37:09PM +0000, Naushir Patuck via libcamera-devel wrote:
> > > Add support for using separate YAML files for controls and properties
> > > generation. The mapping of vendor/pipeline handler to control file is
> > > done through the controls_map variable in include/libcamera/meson.build.
> > >
> > > This simplifies management of vendor control definitions and avoids
> > > possible merge conflicts when changing the control_ids.yaml file for
> > > core and draft controls. With this change, libcamera and draft controls
> > > and properties files are designated the 'libcamera' vendor tag.
> > >
> > > In this change, we also rename control_ids.yaml -> control_ids_core.yaml
> > > and property_ids.yaml -> property_ids_core.yaml to designate these as
> > > core libcamera controls.
> > >
> > > Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
> > > ---
> > >  Documentation/guides/pipeline-handler.rst     |  8 +--
> > >  include/libcamera/meson.build                 | 52 +++++++++++++++----
> > >  meson.build                                   |  2 +
> > >  ...control_ids.yaml => control_ids_core.yaml} |  0
> > >  src/libcamera/meson.build                     | 21 ++++++--
> > >  ...operty_ids.yaml => property_ids_core.yaml} |  0
> > >  src/py/libcamera/gen-py-controls.py           | 10 ++--
> > >  src/py/libcamera/meson.build                  | 12 ++++-
> > >  utils/gen-controls.py                         | 13 +++--
> > >  9 files changed, 88 insertions(+), 30 deletions(-)
> > >  rename src/libcamera/{control_ids.yaml => control_ids_core.yaml} (100%)
> > >  rename src/libcamera/{property_ids.yaml => property_ids_core.yaml} (100%)
> > >
> > > diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
> > > index 10b9c75c2a7f..66d428a19c4f 100644
> > > --- a/Documentation/guides/pipeline-handler.rst
> > > +++ b/Documentation/guides/pipeline-handler.rst
> > > @@ -587,12 +587,12 @@ immutable properties of the ``Camera`` device.
> > >
> > >  The libcamera controls and properties are defined in YAML form which is
> > >  processed to automatically generate documentation and interfaces. Controls are
> > > -defined by the src/libcamera/`control_ids.yaml`_ file and camera properties
> > > -are defined by src/libcamera/`properties_ids.yaml`_.
> > > +defined by the src/libcamera/`control_ids_core.yaml`_ file and camera properties
> > > +are defined by src/libcamera/`properties_ids_core.yaml`_.
> > >
> > >  .. _controls framework: https://libcamera.org/api-html/controls_8h.html
> > > -.. _control_ids.yaml: https://libcamera.org/api-html/control__ids_8h.html
> > > -.. _properties_ids.yaml: https://libcamera.org/api-html/property__ids_8h.html
> > > +.. _control_ids_core.yaml: https://libcamera.org/api-html/control__ids_8h.html
> > > +.. _properties_ids_core.yaml: https://libcamera.org/api-html/property__ids_8h.html
> > >
> > >  Pipeline handlers can optionally register the list of controls an application
> > >  can set as well as a list of immutable camera properties. Being both
> > > diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
> > > index 5fb772e6dd14..a763c8ff4344 100644
> > > --- a/include/libcamera/meson.build
> > > +++ b/include/libcamera/meson.build
> > > @@ -32,22 +32,56 @@ install_headers(libcamera_public_headers,
> > >
> > >  libcamera_headers_install_dir = get_option('includedir') / libcamera_include_dir
> > >
> > > -# control_ids.h and property_ids.h and associated modes
> > > -control_source_files = {
> > > -    'control_ids': 'controls',
> > > -    'property_ids': 'properties',
> > > +controls_map = {
> > > +    'controls': {
> > > +        'core': 'control_ids_core.yaml',
> > > +    },
> > > +
> > > +    'properties': {
> > > +        'core': 'property_ids_core.yaml',
> > > +    }
> > >  }
> > >
> > >  control_headers = []
> > > +controls_files = []
> > > +properties_files = []
> > > +
> > > +foreach mode, entry : controls_map
> > > +    files_list = []
> > > +    input_files = []
> > > +    foreach vendor, header : entry
> > > +        if vendor != 'core' and vendor != 'draft'
> > > +            if vendor not in pipelines
> > > +                message('vendor not in pipelines')
> >
> > This gives
> >
> > Message: vendor not in pipelines
> > Message: vendor not in pipelines
> >
> > in the meson output log, that's not really useful imo
> 
> Indeed.  This was my debug message and should really not be in there!
> 
> >
> > > +                continue
> > > +            endif
> > > +        endif
> > > +
> > > +        if header in files_list
> > > +            message('header in files list')
> > > +            continue
> > > +        endif
> > > +
> > > +        files_list += header
> > > +        input_files += files('../../src/libcamera/' + header)
> > > +    endforeach
> > > +
> > > +    outfile = ''
> > > +    if mode == 'controls'
> > > +        outfile = 'control_ids.h'
> > > +        controls_files += files_list
> > > +    else
> > > +        outfile = 'property_ids.h'
> > > +        properties_files += files_list
> > > +    endif
> > >
> > > -foreach header, mode : control_source_files
> > > -    input_files = files('../../src/libcamera/' + header +'.yaml')
> > > -    template_file = files(header + '.h.in')
> > > +    template_file = files(outfile + '.in')
> > >      control_headers += custom_target(header + '_h',
> > >                                       input : input_files,
> > > -                                     output : header + '.h',
> > > +                                     output : outfile,
> > >                                       command : [gen_controls, '-o', '@OUTPUT@',
> > > -                                                '--mode', mode, '-t', template_file, '@INPUT@'],
> > > +                                                '--mode', mode, '-t', template_file,
> > > +                                                '@INPUT@'],
> > >                                       install : true,
> > >                                       install_dir : libcamera_headers_install_dir)
> > >  endforeach
> > > diff --git a/meson.build b/meson.build
> > > index e9a1c7e360ce..ee57cb780149 100644
> > > --- a/meson.build
> > > +++ b/meson.build
> > > @@ -267,6 +267,8 @@ py_mod.find_installation('python3', modules : py_modules)
> > >  summary({
> > >              'Enabled pipelines': pipelines,
> > >              'Enabled IPA modules': enabled_ipa_names,
> > > +            'Controls files': controls_files,
> > > +            'Properties files': properties_files,
> >
> >     Controls files           : control_ids_draft.yaml
> >                                control_ids_core.yaml
> >     Properties files         : property_ids_draft.yaml
> >                                property_ids_core.yaml
> > This (not from this patch but with the whole series applied) is more
> > useful indeed!
> >
> > >              'Hotplug support': libudev.found(),
> > >              'Tracing support': tracing_enabled,
> > >              'Android support': android_enabled,
> > > diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids_core.yaml
> > > similarity index 100%
> > > rename from src/libcamera/control_ids.yaml
> > > rename to src/libcamera/control_ids_core.yaml
> > > diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
> > > index 05ee38daf22b..6d9902e6ffd1 100644
> > > --- a/src/libcamera/meson.build
> > > +++ b/src/libcamera/meson.build
> > > @@ -127,12 +127,23 @@ endif
> > >
> > >  control_sources = []
> > >
> > > -foreach source, mode : control_source_files
> > > -    input_files = files(source +'.yaml')
> > > -    template_file = files(source + '.cpp.in')
> > > -    control_sources += custom_target(source + '_cpp',
> > > +controls_mode_files = {
> > > +    'controls' : controls_files,
> > > +    'properties' : properties_files,
> > > +}
> > > +
> > > +foreach mode, input_files : controls_mode_files
> > > +    input_files = files(input_files)
> > > +
> > > +    if mode == 'controls'
> > > +        template_file = files('control_ids.cpp.in')
> > > +    else
> > > +        template_file = files('property_ids.cpp.in')
> > > +    endif
> > > +
> > > +    control_sources += custom_target(mode + '_cpp',
> > >                                       input : input_files,
> > > -                                     output : source + '.cpp',
> > > +                                     output : mode + '_ids.cpp',
> > >                                       command : [gen_controls, '-o', '@OUTPUT@',
> > >                                                  '--mode', mode, '-t', template_file, '@INPUT@'])
> > >  endforeach
> > > diff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids_core.yaml
> > > similarity index 100%
> > > rename from src/libcamera/property_ids.yaml
> > > rename to src/libcamera/property_ids_core.yaml
> > > diff --git a/src/py/libcamera/gen-py-controls.py b/src/py/libcamera/gen-py-controls.py
> > > index cfcfd4d16acf..8ae8d5126e39 100755
> > > --- a/src/py/libcamera/gen-py-controls.py
> > > +++ b/src/py/libcamera/gen-py-controls.py
> > > @@ -95,7 +95,7 @@ def main(argv):
> > >                          help='Output file name. Defaults to standard output if not specified.')
> > >      parser.add_argument('--template', '-t', type=str, required=True,
> > >                          help='Template file name.')
> > > -    parser.add_argument('input', type=str,
> > > +    parser.add_argument('input', type=str, nargs='+',
> > >                          help='Input file name.')
> > >      args = parser.parse_args(argv[1:])
> > >
> > > @@ -103,11 +103,11 @@ def main(argv):
> > >          print(f'Invalid mode option "{args.mode}"', file=sys.stderr)
> > >          return -1
> > >
> > > -    data = open(args.input, 'rb').read()
> > > -
> > >      controls = {}
> > > -    vendor = yaml.safe_load(data)['vendor']
> > > -    controls[vendor] = yaml.safe_load(data)['controls']
> > > +    for input in args.input:
> > > +        data = open(input, 'rb').read()
> > > +        vendor = yaml.safe_load(data)['vendor']
> > > +        controls[vendor] = yaml.safe_load(data)['controls']
> > >
> > >      data = generate_py(controls, args.mode)
> > >
> > > diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build
> > > index 1c3ea1843ac0..31af63ec0dc6 100644
> > > --- a/src/py/libcamera/meson.build
> > > +++ b/src/py/libcamera/meson.build
> > > @@ -28,11 +28,15 @@ pycamera_sources = files([
> > >
> > >  # Generate controls
> > >
> > > -gen_py_controls_input_files = files('../../libcamera/control_ids.yaml')
> > > +gen_py_controls_input_files = []
> > >  gen_py_controls_template = files('py_controls_generated.cpp.in')
> > >
> > >  gen_py_controls = files('gen-py-controls.py')
> > >
> > > +foreach file : controls_files
> > > +    gen_py_controls_input_files += files('../../libcamera/' + file)
> > > +endforeach
> > > +
> > >  pycamera_sources += custom_target('py_gen_controls',
> > >                                    input : gen_py_controls_input_files,
> > >                                    output : ['py_controls_generated.cpp'],
> > > @@ -41,9 +45,13 @@ pycamera_sources += custom_target('py_gen_controls',
> > >
> > >  # Generate properties
> > >
> > > -gen_py_property_enums_input_files = files('../../libcamera/property_ids.yaml')
> > > +gen_py_property_enums_input_files = []
> > >  gen_py_properties_template = files('py_properties_generated.cpp.in')
> > >
> > > +foreach file : properties_files
> > > +    gen_py_property_enums_input_files += files('../../libcamera/' + file)
> > > +endforeach
> > > +
> > >  pycamera_sources += custom_target('py_gen_properties',
> > >                                    input : gen_py_property_enums_input_files,
> > >                                    output : ['py_properties_generated.cpp'],
> > > diff --git a/utils/gen-controls.py b/utils/gen-controls.py
> > > index 6680ecf84acb..30c58f35473c 100755
> > > --- a/utils/gen-controls.py
> > > +++ b/utils/gen-controls.py
> > > @@ -12,6 +12,7 @@ import operator
> > >  import string
> > >  import sys
> > >  import yaml
> > > +import os
> > >
> > >
> > >  class ControlEnum(object):
> > > @@ -339,15 +340,17 @@ def main(argv):
> > >                          help='Output file name. Defaults to standard output if not specified.')
> > >      parser.add_argument('--template', '-t', dest='template', type=str, required=True,
> > >                          help='Template file name.')
> > > -    parser.add_argument('input', type=str,
> > > +    parser.add_argument('input', type=str, nargs='+',
> > >                          help='Input file name.')
> > >
> > >      args = parser.parse_args(argv[1:])
> > >
> > > -    data = open(args.input, 'rb').read()
> > > -    vendor = yaml.safe_load(data)['vendor']
> > > -    controls = yaml.safe_load(data)['controls']
> > > -    controls = [Control(*ctrl.popitem(), vendor) for ctrl in controls]
> > > +    controls = []
> > > +    for input in args.input:
> > > +        data = open(input, 'rb').read()
> > > +        vendor = yaml.safe_load(data)['vendor']
> > > +        ctrls = yaml.safe_load(data)['controls']
> > > +        controls = controls + [Control(*ctrl.popitem(), vendor) for ctrl in ctrls]
> >
> > How does thi work in Python, should data be closed ?
> 
> I think it does get closed since we don't hold onto a reference to the
> open() return value.  But please correct me if that is wrong since I
> was (blindly) following what the existing code was doing.
> 

Not a python expert enough here, but I know I often use "
	with open(input, 'rb') as file:
		data = file.read

etc ... which automatically closes the file at the end of that scope.


With the style above - there is no handle to the opened file - so we
don't have anything to call close on ... so it's a bit of refactoring
either way - unless we can be sure python closes automatically.

But ... we're certainly going to close when the file exits...

With that resolved in a suitable way (which could just be confirming
that it autocloses if that works) and the debug message removed:


Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

> Regards,
> Naush
> 
> >
> > Anyway, this all looks good, with the above 'message' dropped
> >
> > Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> >
> > Thanks
> >   j
> >
> > >
> > >      if args.template.endswith('.cpp.in'):
> > >          data = generate_cpp(controls)
> > > --
> > > 2.34.1
> > >
Laurent Pinchart Nov. 30, 2023, 9:08 a.m. UTC | #4
On Tue, Nov 28, 2023 at 03:09:10PM +0000, Kieran Bingham via libcamera-devel wrote:
> Quoting Naushir Patuck via libcamera-devel (2023-11-27 15:45:35)
> > Hi Jacopo,
> > 
> > Thank you for the feedback.
> > 
> > On Mon, 27 Nov 2023 at 15:38, Jacopo Mondi
> > <jacopo.mondi@ideasonboard.com> wrote:
> > >
> > > Hi Naush
> > >
> > > On Fri, Nov 24, 2023 at 12:37:09PM +0000, Naushir Patuck via libcamera-devel wrote:
> > > > Add support for using separate YAML files for controls and properties
> > > > generation. The mapping of vendor/pipeline handler to control file is
> > > > done through the controls_map variable in include/libcamera/meson.build.
> > > >
> > > > This simplifies management of vendor control definitions and avoids
> > > > possible merge conflicts when changing the control_ids.yaml file for
> > > > core and draft controls. With this change, libcamera and draft controls
> > > > and properties files are designated the 'libcamera' vendor tag.
> > > >
> > > > In this change, we also rename control_ids.yaml -> control_ids_core.yaml
> > > > and property_ids.yaml -> property_ids_core.yaml to designate these as
> > > > core libcamera controls.
> > > >
> > > > Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
> > > > ---
> > > >  Documentation/guides/pipeline-handler.rst     |  8 +--
> > > >  include/libcamera/meson.build                 | 52 +++++++++++++++----
> > > >  meson.build                                   |  2 +
> > > >  ...control_ids.yaml => control_ids_core.yaml} |  0
> > > >  src/libcamera/meson.build                     | 21 ++++++--
> > > >  ...operty_ids.yaml => property_ids_core.yaml} |  0
> > > >  src/py/libcamera/gen-py-controls.py           | 10 ++--
> > > >  src/py/libcamera/meson.build                  | 12 ++++-
> > > >  utils/gen-controls.py                         | 13 +++--
> > > >  9 files changed, 88 insertions(+), 30 deletions(-)
> > > >  rename src/libcamera/{control_ids.yaml => control_ids_core.yaml} (100%)
> > > >  rename src/libcamera/{property_ids.yaml => property_ids_core.yaml} (100%)
> > > >
> > > > diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
> > > > index 10b9c75c2a7f..66d428a19c4f 100644
> > > > --- a/Documentation/guides/pipeline-handler.rst
> > > > +++ b/Documentation/guides/pipeline-handler.rst
> > > > @@ -587,12 +587,12 @@ immutable properties of the ``Camera`` device.
> > > >
> > > >  The libcamera controls and properties are defined in YAML form which is
> > > >  processed to automatically generate documentation and interfaces. Controls are
> > > > -defined by the src/libcamera/`control_ids.yaml`_ file and camera properties
> > > > -are defined by src/libcamera/`properties_ids.yaml`_.
> > > > +defined by the src/libcamera/`control_ids_core.yaml`_ file and camera properties
> > > > +are defined by src/libcamera/`properties_ids_core.yaml`_.
> > > >
> > > >  .. _controls framework: https://libcamera.org/api-html/controls_8h.html
> > > > -.. _control_ids.yaml: https://libcamera.org/api-html/control__ids_8h.html
> > > > -.. _properties_ids.yaml: https://libcamera.org/api-html/property__ids_8h.html
> > > > +.. _control_ids_core.yaml: https://libcamera.org/api-html/control__ids_8h.html
> > > > +.. _properties_ids_core.yaml: https://libcamera.org/api-html/property__ids_8h.html
> > > >
> > > >  Pipeline handlers can optionally register the list of controls an application
> > > >  can set as well as a list of immutable camera properties. Being both
> > > > diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
> > > > index 5fb772e6dd14..a763c8ff4344 100644
> > > > --- a/include/libcamera/meson.build
> > > > +++ b/include/libcamera/meson.build
> > > > @@ -32,22 +32,56 @@ install_headers(libcamera_public_headers,
> > > >
> > > >  libcamera_headers_install_dir = get_option('includedir') / libcamera_include_dir
> > > >
> > > > -# control_ids.h and property_ids.h and associated modes
> > > > -control_source_files = {
> > > > -    'control_ids': 'controls',
> > > > -    'property_ids': 'properties',
> > > > +controls_map = {
> > > > +    'controls': {
> > > > +        'core': 'control_ids_core.yaml',
> > > > +    },
> > > > +
> > > > +    'properties': {
> > > > +        'core': 'property_ids_core.yaml',
> > > > +    }
> > > >  }
> > > >
> > > >  control_headers = []
> > > > +controls_files = []
> > > > +properties_files = []
> > > > +
> > > > +foreach mode, entry : controls_map
> > > > +    files_list = []
> > > > +    input_files = []
> > > > +    foreach vendor, header : entry
> > > > +        if vendor != 'core' and vendor != 'draft'
> > > > +            if vendor not in pipelines
> > > > +                message('vendor not in pipelines')
> > >
> > > This gives
> > >
> > > Message: vendor not in pipelines
> > > Message: vendor not in pipelines
> > >
> > > in the meson output log, that's not really useful imo
> > 
> > Indeed.  This was my debug message and should really not be in there!
> > 
> > >
> > > > +                continue
> > > > +            endif
> > > > +        endif
> > > > +
> > > > +        if header in files_list
> > > > +            message('header in files list')
> > > > +            continue
> > > > +        endif
> > > > +
> > > > +        files_list += header
> > > > +        input_files += files('../../src/libcamera/' + header)
> > > > +    endforeach
> > > > +
> > > > +    outfile = ''
> > > > +    if mode == 'controls'
> > > > +        outfile = 'control_ids.h'
> > > > +        controls_files += files_list
> > > > +    else
> > > > +        outfile = 'property_ids.h'
> > > > +        properties_files += files_list
> > > > +    endif
> > > >
> > > > -foreach header, mode : control_source_files
> > > > -    input_files = files('../../src/libcamera/' + header +'.yaml')
> > > > -    template_file = files(header + '.h.in')
> > > > +    template_file = files(outfile + '.in')
> > > >      control_headers += custom_target(header + '_h',
> > > >                                       input : input_files,
> > > > -                                     output : header + '.h',
> > > > +                                     output : outfile,
> > > >                                       command : [gen_controls, '-o', '@OUTPUT@',
> > > > -                                                '--mode', mode, '-t', template_file, '@INPUT@'],
> > > > +                                                '--mode', mode, '-t', template_file,
> > > > +                                                '@INPUT@'],
> > > >                                       install : true,
> > > >                                       install_dir : libcamera_headers_install_dir)
> > > >  endforeach
> > > > diff --git a/meson.build b/meson.build
> > > > index e9a1c7e360ce..ee57cb780149 100644
> > > > --- a/meson.build
> > > > +++ b/meson.build
> > > > @@ -267,6 +267,8 @@ py_mod.find_installation('python3', modules : py_modules)
> > > >  summary({
> > > >              'Enabled pipelines': pipelines,
> > > >              'Enabled IPA modules': enabled_ipa_names,
> > > > +            'Controls files': controls_files,
> > > > +            'Properties files': properties_files,
> > >
> > >     Controls files           : control_ids_draft.yaml
> > >                                control_ids_core.yaml
> > >     Properties files         : property_ids_draft.yaml
> > >                                property_ids_core.yaml
> > > This (not from this patch but with the whole series applied) is more
> > > useful indeed!
> > >
> > > >              'Hotplug support': libudev.found(),
> > > >              'Tracing support': tracing_enabled,
> > > >              'Android support': android_enabled,
> > > > diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids_core.yaml
> > > > similarity index 100%
> > > > rename from src/libcamera/control_ids.yaml
> > > > rename to src/libcamera/control_ids_core.yaml
> > > > diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
> > > > index 05ee38daf22b..6d9902e6ffd1 100644
> > > > --- a/src/libcamera/meson.build
> > > > +++ b/src/libcamera/meson.build
> > > > @@ -127,12 +127,23 @@ endif
> > > >
> > > >  control_sources = []
> > > >
> > > > -foreach source, mode : control_source_files
> > > > -    input_files = files(source +'.yaml')
> > > > -    template_file = files(source + '.cpp.in')
> > > > -    control_sources += custom_target(source + '_cpp',
> > > > +controls_mode_files = {
> > > > +    'controls' : controls_files,
> > > > +    'properties' : properties_files,
> > > > +}
> > > > +
> > > > +foreach mode, input_files : controls_mode_files
> > > > +    input_files = files(input_files)
> > > > +
> > > > +    if mode == 'controls'
> > > > +        template_file = files('control_ids.cpp.in')
> > > > +    else
> > > > +        template_file = files('property_ids.cpp.in')
> > > > +    endif
> > > > +
> > > > +    control_sources += custom_target(mode + '_cpp',
> > > >                                       input : input_files,
> > > > -                                     output : source + '.cpp',
> > > > +                                     output : mode + '_ids.cpp',
> > > >                                       command : [gen_controls, '-o', '@OUTPUT@',
> > > >                                                  '--mode', mode, '-t', template_file, '@INPUT@'])
> > > >  endforeach
> > > > diff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids_core.yaml
> > > > similarity index 100%
> > > > rename from src/libcamera/property_ids.yaml
> > > > rename to src/libcamera/property_ids_core.yaml
> > > > diff --git a/src/py/libcamera/gen-py-controls.py b/src/py/libcamera/gen-py-controls.py
> > > > index cfcfd4d16acf..8ae8d5126e39 100755
> > > > --- a/src/py/libcamera/gen-py-controls.py
> > > > +++ b/src/py/libcamera/gen-py-controls.py
> > > > @@ -95,7 +95,7 @@ def main(argv):
> > > >                          help='Output file name. Defaults to standard output if not specified.')
> > > >      parser.add_argument('--template', '-t', type=str, required=True,
> > > >                          help='Template file name.')
> > > > -    parser.add_argument('input', type=str,
> > > > +    parser.add_argument('input', type=str, nargs='+',
> > > >                          help='Input file name.')
> > > >      args = parser.parse_args(argv[1:])
> > > >
> > > > @@ -103,11 +103,11 @@ def main(argv):
> > > >          print(f'Invalid mode option "{args.mode}"', file=sys.stderr)
> > > >          return -1
> > > >
> > > > -    data = open(args.input, 'rb').read()
> > > > -
> > > >      controls = {}
> > > > -    vendor = yaml.safe_load(data)['vendor']
> > > > -    controls[vendor] = yaml.safe_load(data)['controls']
> > > > +    for input in args.input:
> > > > +        data = open(input, 'rb').read()
> > > > +        vendor = yaml.safe_load(data)['vendor']
> > > > +        controls[vendor] = yaml.safe_load(data)['controls']
> > > >
> > > >      data = generate_py(controls, args.mode)
> > > >
> > > > diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build
> > > > index 1c3ea1843ac0..31af63ec0dc6 100644
> > > > --- a/src/py/libcamera/meson.build
> > > > +++ b/src/py/libcamera/meson.build
> > > > @@ -28,11 +28,15 @@ pycamera_sources = files([
> > > >
> > > >  # Generate controls
> > > >
> > > > -gen_py_controls_input_files = files('../../libcamera/control_ids.yaml')
> > > > +gen_py_controls_input_files = []
> > > >  gen_py_controls_template = files('py_controls_generated.cpp.in')
> > > >
> > > >  gen_py_controls = files('gen-py-controls.py')
> > > >
> > > > +foreach file : controls_files
> > > > +    gen_py_controls_input_files += files('../../libcamera/' + file)
> > > > +endforeach
> > > > +
> > > >  pycamera_sources += custom_target('py_gen_controls',
> > > >                                    input : gen_py_controls_input_files,
> > > >                                    output : ['py_controls_generated.cpp'],
> > > > @@ -41,9 +45,13 @@ pycamera_sources += custom_target('py_gen_controls',
> > > >
> > > >  # Generate properties
> > > >
> > > > -gen_py_property_enums_input_files = files('../../libcamera/property_ids.yaml')
> > > > +gen_py_property_enums_input_files = []
> > > >  gen_py_properties_template = files('py_properties_generated.cpp.in')
> > > >
> > > > +foreach file : properties_files
> > > > +    gen_py_property_enums_input_files += files('../../libcamera/' + file)
> > > > +endforeach
> > > > +
> > > >  pycamera_sources += custom_target('py_gen_properties',
> > > >                                    input : gen_py_property_enums_input_files,
> > > >                                    output : ['py_properties_generated.cpp'],
> > > > diff --git a/utils/gen-controls.py b/utils/gen-controls.py
> > > > index 6680ecf84acb..30c58f35473c 100755
> > > > --- a/utils/gen-controls.py
> > > > +++ b/utils/gen-controls.py
> > > > @@ -12,6 +12,7 @@ import operator
> > > >  import string
> > > >  import sys
> > > >  import yaml
> > > > +import os
> > > >
> > > >
> > > >  class ControlEnum(object):
> > > > @@ -339,15 +340,17 @@ def main(argv):
> > > >                          help='Output file name. Defaults to standard output if not specified.')
> > > >      parser.add_argument('--template', '-t', dest='template', type=str, required=True,
> > > >                          help='Template file name.')
> > > > -    parser.add_argument('input', type=str,
> > > > +    parser.add_argument('input', type=str, nargs='+',
> > > >                          help='Input file name.')
> > > >
> > > >      args = parser.parse_args(argv[1:])
> > > >
> > > > -    data = open(args.input, 'rb').read()
> > > > -    vendor = yaml.safe_load(data)['vendor']
> > > > -    controls = yaml.safe_load(data)['controls']
> > > > -    controls = [Control(*ctrl.popitem(), vendor) for ctrl in controls]
> > > > +    controls = []
> > > > +    for input in args.input:
> > > > +        data = open(input, 'rb').read()
> > > > +        vendor = yaml.safe_load(data)['vendor']
> > > > +        ctrls = yaml.safe_load(data)['controls']
> > > > +        controls = controls + [Control(*ctrl.popitem(), vendor) for ctrl in ctrls]
> > >
> > > How does thi work in Python, should data be closed ?
> > 
> > I think it does get closed since we don't hold onto a reference to the
> > open() return value.  But please correct me if that is wrong since I
> > was (blindly) following what the existing code was doing.
> > 
> 
> Not a python expert enough here, but I know I often use "
> 	with open(input, 'rb') as file:
> 		data = file.read
> 
> etc ... which automatically closes the file at the end of that scope.

That's the most pythonic way to handle scoping for a file object indeed,
when explicit management of the scope is needed (i.e. when you need to
know exactly when the file will be closed).

> With the style above - there is no handle to the opened file - so we
> don't have anything to call close on ... so it's a bit of refactoring
> either way - unless we can be sure python closes automatically.

Python will close the file. The reference count of object returned by
open() reaches 0 when the read() function returns, so the file will get
closed immediately as far as I understand:

>>> class Foo(object):
...     def __init__(self):
...             print('__init__')
...     def __del__(self):
...             print('__del__')
...
>>> f = Foo()
__init__
>>> f = None ; print('deleted')
__del__
deleted

> But ... we're certainly going to close when the file exits...

And there are few files anyway, so even if the objects stayed around
until a garbage collection pass it wouldn't matter that much.

> With that resolved in a suitable way (which could just be confirming
> that it autocloses if that works) and the debug message removed:
> 
> 
> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
> 
> > > Anyway, this all looks good, with the above 'message' dropped
> > >
> > > Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
> > >
> > > >
> > > >      if args.template.endswith('.cpp.in'):
> > > >          data = generate_cpp(controls)

Patch
diff mbox series

diff --git a/Documentation/guides/pipeline-handler.rst b/Documentation/guides/pipeline-handler.rst
index 10b9c75c2a7f..66d428a19c4f 100644
--- a/Documentation/guides/pipeline-handler.rst
+++ b/Documentation/guides/pipeline-handler.rst
@@ -587,12 +587,12 @@  immutable properties of the ``Camera`` device.
 
 The libcamera controls and properties are defined in YAML form which is
 processed to automatically generate documentation and interfaces. Controls are
-defined by the src/libcamera/`control_ids.yaml`_ file and camera properties
-are defined by src/libcamera/`properties_ids.yaml`_.
+defined by the src/libcamera/`control_ids_core.yaml`_ file and camera properties
+are defined by src/libcamera/`properties_ids_core.yaml`_.
 
 .. _controls framework: https://libcamera.org/api-html/controls_8h.html
-.. _control_ids.yaml: https://libcamera.org/api-html/control__ids_8h.html
-.. _properties_ids.yaml: https://libcamera.org/api-html/property__ids_8h.html
+.. _control_ids_core.yaml: https://libcamera.org/api-html/control__ids_8h.html
+.. _properties_ids_core.yaml: https://libcamera.org/api-html/property__ids_8h.html
 
 Pipeline handlers can optionally register the list of controls an application
 can set as well as a list of immutable camera properties. Being both
diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
index 5fb772e6dd14..a763c8ff4344 100644
--- a/include/libcamera/meson.build
+++ b/include/libcamera/meson.build
@@ -32,22 +32,56 @@  install_headers(libcamera_public_headers,
 
 libcamera_headers_install_dir = get_option('includedir') / libcamera_include_dir
 
-# control_ids.h and property_ids.h and associated modes
-control_source_files = {
-    'control_ids': 'controls',
-    'property_ids': 'properties',
+controls_map = {
+    'controls': {
+        'core': 'control_ids_core.yaml',
+    },
+
+    'properties': {
+        'core': 'property_ids_core.yaml',
+    }
 }
 
 control_headers = []
+controls_files = []
+properties_files = []
+
+foreach mode, entry : controls_map
+    files_list = []
+    input_files = []
+    foreach vendor, header : entry
+        if vendor != 'core' and vendor != 'draft'
+            if vendor not in pipelines
+                message('vendor not in pipelines')
+                continue
+            endif
+        endif
+
+        if header in files_list
+            message('header in files list')
+            continue
+        endif
+
+        files_list += header
+        input_files += files('../../src/libcamera/' + header)
+    endforeach
+
+    outfile = ''
+    if mode == 'controls'
+        outfile = 'control_ids.h'
+        controls_files += files_list
+    else
+        outfile = 'property_ids.h'
+        properties_files += files_list
+    endif
 
-foreach header, mode : control_source_files
-    input_files = files('../../src/libcamera/' + header +'.yaml')
-    template_file = files(header + '.h.in')
+    template_file = files(outfile + '.in')
     control_headers += custom_target(header + '_h',
                                      input : input_files,
-                                     output : header + '.h',
+                                     output : outfile,
                                      command : [gen_controls, '-o', '@OUTPUT@',
-                                                '--mode', mode, '-t', template_file, '@INPUT@'],
+                                                '--mode', mode, '-t', template_file,
+                                                '@INPUT@'],
                                      install : true,
                                      install_dir : libcamera_headers_install_dir)
 endforeach
diff --git a/meson.build b/meson.build
index e9a1c7e360ce..ee57cb780149 100644
--- a/meson.build
+++ b/meson.build
@@ -267,6 +267,8 @@  py_mod.find_installation('python3', modules : py_modules)
 summary({
             'Enabled pipelines': pipelines,
             'Enabled IPA modules': enabled_ipa_names,
+            'Controls files': controls_files,
+            'Properties files': properties_files,
             'Hotplug support': libudev.found(),
             'Tracing support': tracing_enabled,
             'Android support': android_enabled,
diff --git a/src/libcamera/control_ids.yaml b/src/libcamera/control_ids_core.yaml
similarity index 100%
rename from src/libcamera/control_ids.yaml
rename to src/libcamera/control_ids_core.yaml
diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build
index 05ee38daf22b..6d9902e6ffd1 100644
--- a/src/libcamera/meson.build
+++ b/src/libcamera/meson.build
@@ -127,12 +127,23 @@  endif
 
 control_sources = []
 
-foreach source, mode : control_source_files
-    input_files = files(source +'.yaml')
-    template_file = files(source + '.cpp.in')
-    control_sources += custom_target(source + '_cpp',
+controls_mode_files = {
+    'controls' : controls_files,
+    'properties' : properties_files,
+}
+
+foreach mode, input_files : controls_mode_files
+    input_files = files(input_files)
+
+    if mode == 'controls'
+        template_file = files('control_ids.cpp.in')
+    else
+        template_file = files('property_ids.cpp.in')
+    endif
+
+    control_sources += custom_target(mode + '_cpp',
                                      input : input_files,
-                                     output : source + '.cpp',
+                                     output : mode + '_ids.cpp',
                                      command : [gen_controls, '-o', '@OUTPUT@',
                                                 '--mode', mode, '-t', template_file, '@INPUT@'])
 endforeach
diff --git a/src/libcamera/property_ids.yaml b/src/libcamera/property_ids_core.yaml
similarity index 100%
rename from src/libcamera/property_ids.yaml
rename to src/libcamera/property_ids_core.yaml
diff --git a/src/py/libcamera/gen-py-controls.py b/src/py/libcamera/gen-py-controls.py
index cfcfd4d16acf..8ae8d5126e39 100755
--- a/src/py/libcamera/gen-py-controls.py
+++ b/src/py/libcamera/gen-py-controls.py
@@ -95,7 +95,7 @@  def main(argv):
                         help='Output file name. Defaults to standard output if not specified.')
     parser.add_argument('--template', '-t', type=str, required=True,
                         help='Template file name.')
-    parser.add_argument('input', type=str,
+    parser.add_argument('input', type=str, nargs='+',
                         help='Input file name.')
     args = parser.parse_args(argv[1:])
 
@@ -103,11 +103,11 @@  def main(argv):
         print(f'Invalid mode option "{args.mode}"', file=sys.stderr)
         return -1
 
-    data = open(args.input, 'rb').read()
-
     controls = {}
-    vendor = yaml.safe_load(data)['vendor']
-    controls[vendor] = yaml.safe_load(data)['controls']
+    for input in args.input:
+        data = open(input, 'rb').read()
+        vendor = yaml.safe_load(data)['vendor']
+        controls[vendor] = yaml.safe_load(data)['controls']
 
     data = generate_py(controls, args.mode)
 
diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build
index 1c3ea1843ac0..31af63ec0dc6 100644
--- a/src/py/libcamera/meson.build
+++ b/src/py/libcamera/meson.build
@@ -28,11 +28,15 @@  pycamera_sources = files([
 
 # Generate controls
 
-gen_py_controls_input_files = files('../../libcamera/control_ids.yaml')
+gen_py_controls_input_files = []
 gen_py_controls_template = files('py_controls_generated.cpp.in')
 
 gen_py_controls = files('gen-py-controls.py')
 
+foreach file : controls_files
+    gen_py_controls_input_files += files('../../libcamera/' + file)
+endforeach
+
 pycamera_sources += custom_target('py_gen_controls',
                                   input : gen_py_controls_input_files,
                                   output : ['py_controls_generated.cpp'],
@@ -41,9 +45,13 @@  pycamera_sources += custom_target('py_gen_controls',
 
 # Generate properties
 
-gen_py_property_enums_input_files = files('../../libcamera/property_ids.yaml')
+gen_py_property_enums_input_files = []
 gen_py_properties_template = files('py_properties_generated.cpp.in')
 
+foreach file : properties_files
+    gen_py_property_enums_input_files += files('../../libcamera/' + file)
+endforeach
+
 pycamera_sources += custom_target('py_gen_properties',
                                   input : gen_py_property_enums_input_files,
                                   output : ['py_properties_generated.cpp'],
diff --git a/utils/gen-controls.py b/utils/gen-controls.py
index 6680ecf84acb..30c58f35473c 100755
--- a/utils/gen-controls.py
+++ b/utils/gen-controls.py
@@ -12,6 +12,7 @@  import operator
 import string
 import sys
 import yaml
+import os
 
 
 class ControlEnum(object):
@@ -339,15 +340,17 @@  def main(argv):
                         help='Output file name. Defaults to standard output if not specified.')
     parser.add_argument('--template', '-t', dest='template', type=str, required=True,
                         help='Template file name.')
-    parser.add_argument('input', type=str,
+    parser.add_argument('input', type=str, nargs='+',
                         help='Input file name.')
 
     args = parser.parse_args(argv[1:])
 
-    data = open(args.input, 'rb').read()
-    vendor = yaml.safe_load(data)['vendor']
-    controls = yaml.safe_load(data)['controls']
-    controls = [Control(*ctrl.popitem(), vendor) for ctrl in controls]
+    controls = []
+    for input in args.input:
+        data = open(input, 'rb').read()
+        vendor = yaml.safe_load(data)['vendor']
+        ctrls = yaml.safe_load(data)['controls']
+        controls = controls + [Control(*ctrl.popitem(), vendor) for ctrl in ctrls]
 
     if args.template.endswith('.cpp.in'):
         data = generate_cpp(controls)