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{ "id": 15788, "url": "https://patchwork.libcamera.org/api/patches/15788/?format=api", "web_url": "https://patchwork.libcamera.org/patch/15788/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20220505104104.70841-6-tomi.valkeinen@ideasonboard.com>", "date": "2022-05-05T10:40:56", "name": "[libcamera-devel,v7,05/13] py: generate control enums from yaml", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "44d334010a2cb5b5d3b1b0981af84ad2990c4a42", "submitter": { "id": 109, "url": "https://patchwork.libcamera.org/api/people/109/?format=api", "name": "Tomi Valkeinen", "email": "tomi.valkeinen@ideasonboard.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/15788/mbox/", "series": [ { "id": 3093, "url": "https://patchwork.libcamera.org/api/series/3093/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3093", "date": "2022-05-05T10:40:51", "name": "Python bindings", "version": 7, "mbox": "https://patchwork.libcamera.org/series/3093/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/15788/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/15788/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "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 37B87C326C\n\tfor <parsemail@patchwork.libcamera.org>;\n\tThu, 5 May 2022 10:41:35 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 757946564D;\n\tThu, 5 May 2022 12:41:31 +0200 (CEST)", "from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id D1B5C65649\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tThu, 5 May 2022 12:41:27 +0200 (CEST)", "from deskari.lan (91-156-85-209.elisa-laajakaista.fi\n\t[91.156.85.209])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 4D658492;\n\tThu, 5 May 2022 12:41:27 +0200 (CEST)" ], "DKIM-Signature": [ "v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1651747291;\n\tbh=drreAiTzVPj/8papvYf8Ka9q5BVWu4HwHS0fgUN0E98=;\n\th=To:Date:In-Reply-To:References:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:\n\tFrom;\n\tb=gT7b5PZGK0NsjEHODW0R6lUDh9U5FD5HItULVaY5IiXFvGDVyl8a9F2MnjtSy8W3+\n\tlQIFEHuBfGp2qge6w5p05YfErpN6BC1oTEkupEcAVpls9CKjp0UoRuxOIlAwH9Je0D\n\tpFzGYrGOEGl72BbzFh+dMnJmPbncLvz/2m/eHAm1ISyWzDQLhHekMuM4kpUQ160oLn\n\tLpXhYThsqE1EG7pqQTFSa+0AHm3q9tRxrNLoIIBs38LnQVT85W0g+JZic343YaY0Cs\n\tRs1JB92w6EEclZv/hsXCqwo2DEOrzdxWA5MNFJNK/wMKbjwt/UyaFFWhz77aqw4ylp\n\t4RkCrN2YA+0mQ==", "v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1651747287;\n\tbh=drreAiTzVPj/8papvYf8Ka9q5BVWu4HwHS0fgUN0E98=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=GqT4NQpMjtvaN8AY8KJbWqeXFJjc1R4UBNKPxcX3FOYgDAk4Phgb9WBvJzVstUeJe\n\tqsKQBWfH3IOwHjopFv780TrwQuv5PCYrn1Z94YHN7wJeQaorpyvEwzOI2RGKywHm7n\n\tEjXt6V1SnE7R8ZCpZNiB3T0DfkClxmQIb+irnkD8=" ], "Authentication-Results": "lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"GqT4NQpM\"; dkim-atps=neutral", "To": "libcamera-devel@lists.libcamera.org,\n\tDavid Plowman <david.plowman@raspberrypi.com>,\n\tKieran Bingham <kieran.bingham@ideasonboard.com>,\n\tLaurent Pinchart <laurent.pinchart@ideasonboard.com>,\n\tJacopo Mondi <jacopo@jmondi.org>", "Date": "Thu, 5 May 2022 13:40:56 +0300", "Message-Id": "<20220505104104.70841-6-tomi.valkeinen@ideasonboard.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20220505104104.70841-1-tomi.valkeinen@ideasonboard.com>", "References": "<20220505104104.70841-1-tomi.valkeinen@ideasonboard.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v7 05/13] py: generate control enums from\n\tyaml", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "From": "Tomi Valkeinen via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Generate enums for controls from control_ids.yaml. The generator script\nhas some heuristics to generate nicer enum names. E.g. instead of having\n\"LensShadingMapMode.LensShadingMapModeOff\" we get\n\"LensShadingMapMode.Off\". This heuristics may need to be updated when\nthe yaml file is changed or new controls are added.\n\nSigned-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>\n---\n src/py/libcamera/gen-py-control-enums.py | 95 +++++++++++++++++++++++\n src/py/libcamera/meson.build | 9 +++\n src/py/libcamera/pyenums_generated.cpp.in | 21 +++++\n src/py/libcamera/pymain.cpp | 2 +\n 4 files changed, 127 insertions(+)\n create mode 100755 src/py/libcamera/gen-py-control-enums.py\n create mode 100644 src/py/libcamera/pyenums_generated.cpp.in", "diff": "diff --git a/src/py/libcamera/gen-py-control-enums.py b/src/py/libcamera/gen-py-control-enums.py\nnew file mode 100755\nindex 00000000..f1b18389\n--- /dev/null\n+++ b/src/py/libcamera/gen-py-control-enums.py\n@@ -0,0 +1,95 @@\n+#!/usr/bin/env python3\n+# SPDX-License-Identifier: GPL-2.0-or-later\n+#\n+# Generate Python bindings enums for controls from YAML\n+\n+import argparse\n+import string\n+import sys\n+import yaml\n+\n+\n+def find_common_prefix(strings):\n+ prefix = strings[0]\n+\n+ for string in strings[1:]:\n+ while string[:len(prefix)] != prefix and prefix:\n+ prefix = prefix[:len(prefix) - 1]\n+ if not prefix:\n+ break\n+\n+ return prefix\n+\n+\n+def generate_py(controls):\n+ out = \"\"\n+\n+ for ctrl in controls:\n+ name, ctrl = ctrl.popitem()\n+\n+ enum = ctrl.get('enum')\n+ if not enum:\n+ continue\n+\n+ if ctrl.get('draft'):\n+ ns = \"libcamera::controls::draft::\"\n+ else:\n+ ns = \"libcamera::controls::\"\n+\n+ cpp_enum = name + \"Enum\"\n+\n+ out += \"\\tpy::enum_<{}{}>(m, \\\"{}\\\")\\n\".format(ns, cpp_enum, name)\n+\n+ if name == \"LensShadingMapMode\":\n+ prefix = \"LensShadingMapMode\"\n+ else:\n+ prefix = find_common_prefix([e[\"name\"] for e in enum])\n+\n+ for entry in enum:\n+ cpp_enum = entry[\"name\"]\n+ py_enum = entry[\"name\"][len(prefix):]\n+\n+ out += \"\\t\\t.value(\\\"{}\\\", {}{})\\n\".format(py_enum, ns, cpp_enum)\n+\n+ out += \"\\t;\\n\"\n+\n+ return {\"enums\": out}\n+\n+\n+def fill_template(template, data):\n+ template = open(template, 'rb').read()\n+ template = template.decode('utf-8')\n+ template = string.Template(template)\n+ return template.substitute(data)\n+\n+\n+def main(argv):\n+ # Parse command line arguments\n+ parser = argparse.ArgumentParser()\n+ parser.add_argument('-o', dest='output', metavar='file', type=str,\n+ help='Output file name. Defaults to standard output if not specified.')\n+ parser.add_argument('input', type=str,\n+ help='Input file name.')\n+ parser.add_argument('template', type=str,\n+ help='Template file name.')\n+ args = parser.parse_args(argv[1:])\n+\n+ data = open(args.input, 'rb').read()\n+ controls = yaml.safe_load(data)['controls']\n+\n+ data = generate_py(controls)\n+\n+ data = fill_template(args.template, data)\n+\n+ if args.output:\n+ output = open(args.output, 'wb')\n+ output.write(data.encode('utf-8'))\n+ output.close()\n+ else:\n+ sys.stdout.write(data)\n+\n+ return 0\n+\n+\n+if __name__ == '__main__':\n+ sys.exit(main(sys.argv))\ndiff --git a/src/py/libcamera/meson.build b/src/py/libcamera/meson.build\nindex e1f5cf21..42988e55 100644\n--- a/src/py/libcamera/meson.build\n+++ b/src/py/libcamera/meson.build\n@@ -17,6 +17,15 @@ pycamera_sources = files([\n 'pyenums.cpp',\n ])\n \n+gen_input_files = [meson.project_source_root() / 'src/libcamera/control_ids.yaml', 'pyenums_generated.cpp.in']\n+\n+generated_sources = custom_target('py_gen_controls',\n+ input : gen_input_files,\n+ output : ['pyenums_generated.cpp'],\n+ command : ['gen-py-control-enums.py', '-o', '@OUTPUT@', '@INPUT@'])\n+\n+pycamera_sources += generated_sources\n+\n pycamera_deps = [\n libcamera_public,\n py3_dep,\ndiff --git a/src/py/libcamera/pyenums_generated.cpp.in b/src/py/libcamera/pyenums_generated.cpp.in\nnew file mode 100644\nindex 00000000..96daf257\n--- /dev/null\n+++ b/src/py/libcamera/pyenums_generated.cpp.in\n@@ -0,0 +1,21 @@\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/*\n+ * Copyright (C) 2021, Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>\n+ *\n+ * Python bindings\n+ *\n+ * This file is auto-generated. Do not edit.\n+ */\n+\n+#include <libcamera/libcamera.h>\n+\n+#include <pybind11/smart_holder.h>\n+\n+namespace py = pybind11;\n+\n+using namespace libcamera;\n+\n+void init_pyenums_generated(py::module& m)\n+{\n+${enums}\n+}\ndiff --git a/src/py/libcamera/pymain.cpp b/src/py/libcamera/pymain.cpp\nindex 54674caf..81d48a20 100644\n--- a/src/py/libcamera/pymain.cpp\n+++ b/src/py/libcamera/pymain.cpp\n@@ -115,10 +115,12 @@ static void handleRequestCompleted(Request *req)\n }\n \n void init_pyenums(py::module &m);\n+void init_pyenums_generated(py::module &m);\n \n PYBIND11_MODULE(_libcamera, m)\n {\n \tinit_pyenums(m);\n+\tinit_pyenums_generated(m);\n \n \t/* Forward declarations */\n \n", "prefixes": [ "libcamera-devel", "v7", "05/13" ] }