[{"id":30810,"web_url":"https://patchwork.libcamera.org/comment/30810/","msgid":"<51f6138e-df50-488b-a6e3-9de3f3d13427@ideasonboard.com>","date":"2024-08-14T21:50:09","subject":"Re: [PATCH 01/10] meson: Store controls and properties YAML files in\n\tvariables","submitter":{"id":156,"url":"https://patchwork.libcamera.org/api/people/156/","name":"Dan Scally","email":"dan.scally@ideasonboard.com"},"content":"Hi Laurent - thanks for the set\n\nOn 09/08/2024 01:59, Laurent Pinchart wrote:\n> When generating control headers, the YAML files to be used are\n> determined dynamically based on the selected pipeline handlers. As part\n> of this process, the build system populates an array of meson File\n> objects used an an input for the control headers generation custom\ns/an an/as an\n> target, as well as an array of file names (as strings). The file names\n> array is later used to generate the control source files for the\n> libcamera core, as well as the source code for controls support in the\n> Python bindings.\n>\n> Both of the source code generators manually turn the array of file names\n> into File objects. This duplicates code and reduces readability. A third\n> similar implementation has also been proposed to generate control\n> support sources in the GStreamer element, making the issue worse.\n>\n> To simplify this, store File objects instead of file names in the\n> controls_files array. As the meson configuration summary doesn't support\n> File objects, create a separate controls_files_names to store the file\n> names for that sole purpose.\n>\n> The exact same process occurs for properties, address them the same way.\n>\n> Signed-off-by: Laurent Pinchart \n> ---\nReviewed-by: Daniel Scally \n> include/libcamera/meson.build | 8 ++++++--\n> meson.build | 4 ++--\n> src/libcamera/meson.build | 2 --\n> src/py/libcamera/meson.build | 15 ++-------------\n> 4 files changed, 10 insertions(+), 19 deletions(-)\n>\n> diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build\n> index c8c900eba66a..36de1c2a393c 100644\n> --- a/include/libcamera/meson.build\n> +++ b/include/libcamera/meson.build\n> @@ -47,7 +47,9 @@ controls_map = {\n> \n> control_headers = []\n> controls_files = []\n> +controls_files_names = []\n> properties_files = []\n> +properties_files_names = []\n> \n> foreach mode, entry : controls_map\n> files_list = []\n> @@ -70,10 +72,12 @@ foreach mode, entry : controls_map\n> outfile = ''\n> if mode == 'controls'\n> outfile = 'control_ids.h'\n> - controls_files += files_list\n> + controls_files += input_files\n> + controls_files_names += files_list\n> else\n> outfile = 'property_ids.h'\n> - properties_files += files_list\n> + properties_files += input_files\n> + properties_files_names += files_list\n> endif\n> \n> template_file = files(outfile + '.in')\n> diff --git a/meson.build b/meson.build\n> index 59293e478b00..432ae1337b4a 100644\n> --- a/meson.build\n> +++ b/meson.build\n> @@ -278,8 +278,8 @@ py_mod.find_installation('python3', modules : py_modules)\n> summary({\n> 'Enabled pipelines': pipelines,\n> 'Enabled IPA modules': enabled_ipa_names,\n> - 'Controls files': controls_files,\n> - 'Properties files': properties_files,\n> + 'Controls files': controls_files_names,\n> + 'Properties files': properties_files_names,\n> 'Hotplug support': libudev.found(),\n> 'Tracing support': tracing_enabled,\n> 'Android support': android_enabled,\n> diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build\n> index c3efc5278ec8..79b8cbaf1311 100644\n> --- a/src/libcamera/meson.build\n> +++ b/src/libcamera/meson.build\n> @@ -134,8 +134,6 @@ controls_mode_files = {\n> }\n> \n> foreach mode, input_files : controls_mode_files\n> - input_files = files(input_files)\n> -\n> if mode == 'controls'\n> template_file = files('control_ids.cpp.in')\n> else\n> diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build\n> index 4807ca7d75ed..2e67407598db 100644\n> --- a/src/py/libcamera/meson.build\n> +++ b/src/py/libcamera/meson.build\n> @@ -28,32 +28,21 @@ pycamera_sources = files([\n> \n> # Generate controls\n> \n> -gen_py_controls_input_files = []\n> gen_py_controls_template = files('py_controls_generated.cpp.in')\n> -\n> gen_py_controls = files('gen-py-controls.py')\n> \n> -foreach file : controls_files\n> - gen_py_controls_input_files += files('../../libcamera/' + file)\n> -endforeach\n> -\n> pycamera_sources += custom_target('py_gen_controls',\n> - input : gen_py_controls_input_files,\n> + input : controls_files,\n> output : ['py_controls_generated.cpp'],\n> command : [gen_py_controls, '--mode', 'controls', '-o', '@OUTPUT@',\n> '-t', gen_py_controls_template, '@INPUT@'])\n> \n> # Generate properties\n> \n> -gen_py_property_enums_input_files = []\n> gen_py_properties_template = files('py_properties_generated.cpp.in')\n> \n> -foreach file : properties_files\n> - gen_py_property_enums_input_files += files('../../libcamera/' + file)\n> -endforeach\n> -\n> pycamera_sources += custom_target('py_gen_properties',\n> - input : gen_py_property_enums_input_files,\n> + input : properties_files,\n> output : ['py_properties_generated.cpp'],\n> command : [gen_py_controls, '--mode', 'properties', '-o', '@OUTPUT@',\n> '-t', gen_py_properties_template, '@INPUT@'])","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id B2AC3C323E\n\tfor ;\n\tWed, 14 Aug 2024 21:50:15 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id AED12633BD;\n\tWed, 14 Aug 2024 23:50:14 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 243316337E\n\tfor ;\n\tWed, 14 Aug 2024 23:50:13 +0200 (CEST)","from [192.168.0.43]\n\t(cpc141996-chfd3-2-0-cust928.12-3.cable.virginm.net [86.13.91.161])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 4D9E166F\n\tfor ;\n\tWed, 14 Aug 2024 23:49:14 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"WSd6wQBI\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1723672155;\n\tbh=Owxalqtz+z0Y0G9k/yC0bzIBKhi4hSc3R/pqXV3Eel4=;\n\th=Date:Subject:To:References:From:In-Reply-To:From;\n\tb=WSd6wQBIzMXlixuWWbaYq/qXyxOVdVbD8/mhDZpa0uPsSnzHnmG4iAEXbZDqnd8tS\n\tMRFSoCdiM5iL5cq9+WnNuzesDIk6TO1IkSPYHB6zgTKluvKvHUf1V5Ty2U2UQ6kzcF\n\tpIF1oOyrvPVzYUCi409V9ST7m2PFn0AXHt8kmYj4=","Message-ID":"<51f6138e-df50-488b-a6e3-9de3f3d13427@ideasonboard.com>","Date":"Wed, 14 Aug 2024 22:50:09 +0100","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH 01/10] meson: Store controls and properties YAML files in\n\tvariables","To":"libcamera-devel@lists.libcamera.org","References":"<20240809005914.20662-1-laurent.pinchart@ideasonboard.com>\n\t<20240809005914.20662-2-laurent.pinchart@ideasonboard.com>","Content-Language":"en-US","From":"Dan Scally ","Autocrypt":"addr=dan.scally@ideasonboard.com; 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charset=UTF-8; format=flowed","Content-Transfer-Encoding":"7bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":30825,"web_url":"https://patchwork.libcamera.org/comment/30825/","msgid":"","date":"2024-08-15T01:31:59","subject":"Re: [PATCH 01/10] meson: Store controls and properties YAML files in\n\tvariables","submitter":{"id":17,"url":"https://patchwork.libcamera.org/api/people/17/","name":"Paul Elder","email":"paul.elder@ideasonboard.com"},"content":"On Fri, Aug 09, 2024 at 03:59:05AM +0300, Laurent Pinchart wrote:\n> When generating control headers, the YAML files to be used are\n> determined dynamically based on the selected pipeline handlers. As part\n> of this process, the build system populates an array of meson File\n> objects used an an input for the control headers generation custom\n> target, as well as an array of file names (as strings). The file names\n> array is later used to generate the control source files for the\n> libcamera core, as well as the source code for controls support in the\n> Python bindings.\n> \n> Both of the source code generators manually turn the array of file names\n> into File objects. This duplicates code and reduces readability. A third\n> similar implementation has also been proposed to generate control\n> support sources in the GStreamer element, making the issue worse.\n> \n> To simplify this, store File objects instead of file names in the\n> controls_files array. As the meson configuration summary doesn't support\n> File objects, create a separate controls_files_names to store the file\n> names for that sole purpose.\n> \n> The exact same process occurs for properties, address them the same way.\n> \n> Signed-off-by: Laurent Pinchart \n\nReviewed-by: Paul Elder \n\n> ---\n> include/libcamera/meson.build | 8 ++++++--\n> meson.build | 4 ++--\n> src/libcamera/meson.build | 2 --\n> src/py/libcamera/meson.build | 15 ++-------------\n> 4 files changed, 10 insertions(+), 19 deletions(-)\n> \n> diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build\n> index c8c900eba66a..36de1c2a393c 100644\n> --- a/include/libcamera/meson.build\n> +++ b/include/libcamera/meson.build\n> @@ -47,7 +47,9 @@ controls_map = {\n> \n> control_headers = []\n> controls_files = []\n> +controls_files_names = []\n> properties_files = []\n> +properties_files_names = []\n> \n> foreach mode, entry : controls_map\n> files_list = []\n> @@ -70,10 +72,12 @@ foreach mode, entry : controls_map\n> outfile = ''\n> if mode == 'controls'\n> outfile = 'control_ids.h'\n> - controls_files += files_list\n> + controls_files += input_files\n> + controls_files_names += files_list\n> else\n> outfile = 'property_ids.h'\n> - properties_files += files_list\n> + properties_files += input_files\n> + properties_files_names += files_list\n> endif\n> \n> template_file = files(outfile + '.in')\n> diff --git a/meson.build b/meson.build\n> index 59293e478b00..432ae1337b4a 100644\n> --- a/meson.build\n> +++ b/meson.build\n> @@ -278,8 +278,8 @@ py_mod.find_installation('python3', modules : py_modules)\n> summary({\n> 'Enabled pipelines': pipelines,\n> 'Enabled IPA modules': enabled_ipa_names,\n> - 'Controls files': controls_files,\n> - 'Properties files': properties_files,\n> + 'Controls files': controls_files_names,\n> + 'Properties files': properties_files_names,\n> 'Hotplug support': libudev.found(),\n> 'Tracing support': tracing_enabled,\n> 'Android support': android_enabled,\n> diff --git a/src/libcamera/meson.build b/src/libcamera/meson.build\n> index c3efc5278ec8..79b8cbaf1311 100644\n> --- a/src/libcamera/meson.build\n> +++ b/src/libcamera/meson.build\n> @@ -134,8 +134,6 @@ controls_mode_files = {\n> }\n> \n> foreach mode, input_files : controls_mode_files\n> - input_files = files(input_files)\n> -\n> if mode == 'controls'\n> template_file = files('control_ids.cpp.in')\n> else\n> diff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build\n> index 4807ca7d75ed..2e67407598db 100644\n> --- a/src/py/libcamera/meson.build\n> +++ b/src/py/libcamera/meson.build\n> @@ -28,32 +28,21 @@ pycamera_sources = files([\n> \n> # Generate controls\n> \n> -gen_py_controls_input_files = []\n> gen_py_controls_template = files('py_controls_generated.cpp.in')\n> -\n> gen_py_controls = files('gen-py-controls.py')\n> \n> -foreach file : controls_files\n> - gen_py_controls_input_files += files('../../libcamera/' + file)\n> -endforeach\n> -\n> pycamera_sources += custom_target('py_gen_controls',\n> - input : gen_py_controls_input_files,\n> + input : controls_files,\n> output : ['py_controls_generated.cpp'],\n> command : [gen_py_controls, '--mode', 'controls', '-o', '@OUTPUT@',\n> '-t', gen_py_controls_template, '@INPUT@'])\n> \n> # Generate properties\n> \n> -gen_py_property_enums_input_files = []\n> gen_py_properties_template = files('py_properties_generated.cpp.in')\n> \n> -foreach file : properties_files\n> - gen_py_property_enums_input_files += files('../../libcamera/' + file)\n> -endforeach\n> -\n> pycamera_sources += custom_target('py_gen_properties',\n> - input : gen_py_property_enums_input_files,\n> + input : properties_files,\n> output : ['py_properties_generated.cpp'],\n> command : [gen_py_controls, '--mode', 'properties', '-o', '@OUTPUT@',\n> '-t', gen_py_properties_template, '@INPUT@'])\n> -- \n> Regards,\n> \n> Laurent Pinchart\n>","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 40671BDB13\n\tfor ;\n\tThu, 15 Aug 2024 01:32:10 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id ECBFF633BD;\n\tThu, 15 Aug 2024 03:32:08 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 278A163382\n\tfor ;\n\tThu, 15 Aug 2024 03:32:07 +0200 (CEST)","from pyrite.rasen.tech (h175-177-049-024.catv02.itscom.jp\n\t[175.177.49.24])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 12BD8A34;\n\tThu, 15 Aug 2024 03:31:07 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"cTqCCKk9\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1723685469;\n\tbh=tEuHykd1T/eQ4A2vmkzuwyEhrl3LkU57WCDOfj0kP74=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=cTqCCKk9LvBlcl+OZRVJK/MQzntjgmK/35Z4JPdAXqSJ7s0EyAJ1cDBoSEM5CrAci\n\tp9mGtTl5DSLuqcRFde5u+kwT5ttkEyMFasuFEWBziorri9uVNueTSlfQhd7rPX1Cmu\n\t0oxZhEOfRR+vWksdI53DBPX7OJs32Fi7e1bFkaV4=","Date":"Thu, 15 Aug 2024 10:31:59 +0900","From":"Paul Elder ","To":"Laurent Pinchart ","Cc":"libcamera-devel@lists.libcamera.org","Subject":"Re: [PATCH 01/10] meson: Store controls and properties YAML files in\n\tvariables","Message-ID":"","References":"<20240809005914.20662-1-laurent.pinchart@ideasonboard.com>\n\t<20240809005914.20662-2-laurent.pinchart@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<20240809005914.20662-2-laurent.pinchart@ideasonboard.com>","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]