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{
    "id": 16147,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/16147/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/16147/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api",
        "name": "libcamera",
        "link_name": "libcamera",
        "list_id": "libcamera_core",
        "list_email": "libcamera-devel@lists.libcamera.org",
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    },
    "msgid": "<20220603220712.73673-5-Rauch.Christian@gmx.de>",
    "date": "2022-06-03T22:07:11",
    "name": "[libcamera-devel,v6,4/5] libcamera: controls: Generate fixed- and variable-sized Span Controls",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "abbda95a9e49e6401aeb5995bb1b3e26a6a73a0c",
    "submitter": {
        "id": 111,
        "url": "https://patchwork.libcamera.org/api/1.1/people/111/?format=api",
        "name": "Christian Rauch",
        "email": "Rauch.Christian@gmx.de"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/16147/mbox/",
    "series": [
        {
            "id": 3158,
            "url": "https://patchwork.libcamera.org/api/1.1/series/3158/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3158",
            "date": "2022-06-03T22:07:07",
            "name": "generate and use fixed-sized Span Control types",
            "version": 6,
            "mbox": "https://patchwork.libcamera.org/series/3158/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/16147/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/16147/checks/",
    "tags": {},
    "headers": {
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        "X-UI-Sender-Class": "01bb95c1-4bf8-414a-932a-4f6e2808ef9c",
        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Fri,  3 Jun 2022 23:07:11 +0100",
        "Message-Id": "<20220603220712.73673-5-Rauch.Christian@gmx.de>",
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        "Subject": "[libcamera-devel] [PATCH v6 4/5] libcamera: controls: Generate\n\tfixed- and variable-sized Span Controls",
        "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>",
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        "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>",
        "From": "Christian Rauch via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>",
        "Reply-To": "Christian Rauch <Rauch.Christian@gmx.de>",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "This defines Controls with a 'size' as either variable-sized Span<T> or as\nfixed-sized Span<T,N>.\n\nSigned-off-by: Christian Rauch <Rauch.Christian@gmx.de>\nReviewed-by: Jacopo Mondi <jacopo@jmondi.org>\n---\n utils/gen-controls.py | 32 ++++++++++++++++++++++----------\n 1 file changed, 22 insertions(+), 10 deletions(-)\n\n--\n2.34.1",
    "diff": "diff --git a/utils/gen-controls.py b/utils/gen-controls.py\nindex 3f99b5e2..46ba4394 100755\n--- a/utils/gen-controls.py\n+++ b/utils/gen-controls.py\n@@ -7,6 +7,8 @@\n # gen-controls.py - Generate control definitions from YAML\n\n import argparse\n+from functools import reduce\n+import operator\n import string\n import sys\n import yaml\n@@ -22,6 +24,24 @@ def format_description(description):\n     return '\\n'.join([(line and ' * ' or ' *') + line for line in description])\n\n\n+def get_ctrl_type(ctrl):\n+    ctrl_type = ctrl['type']\n+    ctrl_size_arr = ctrl.get('size')\n+\n+    if ctrl_type == 'string':\n+        return 'std::string'\n+    elif ctrl_size_arr is not None:\n+        if len(ctrl_size_arr) > 0:\n+            # fixed-sized Span\n+            ctrl_span_size = reduce(operator.mul, ctrl_size_arr)\n+            return f\"Span<const {ctrl_type}, {ctrl_span_size}>\"\n+        else:\n+            # variable-sized Span\n+            return f\"Span<const {ctrl_type}>\"\n+    else:\n+        return ctrl_type\n+\n+\n def generate_cpp(controls):\n     enum_doc_start_template = string.Template('''/**\n  * \\\\enum ${name}Enum\n@@ -50,11 +70,7 @@ ${description}\n         name, ctrl = ctrl.popitem()\n         id_name = snake_case(name).upper()\n\n-        ctrl_type = ctrl['type']\n-        if ctrl_type == 'string':\n-            ctrl_type = 'std::string'\n-        elif ctrl.get('size'):\n-            ctrl_type = 'Span<const %s>' % ctrl_type\n+        ctrl_type = get_ctrl_type(ctrl)\n\n         info = {\n             'name': name,\n@@ -135,11 +151,7 @@ def generate_h(controls):\n\n         ids.append('\\t' + id_name + ' = ' + str(id_value) + ',')\n\n-        ctrl_type = ctrl['type']\n-        if ctrl_type == 'string':\n-            ctrl_type = 'std::string'\n-        elif ctrl.get('size'):\n-            ctrl_type = 'Span<const %s>' % ctrl_type\n+        ctrl_type = get_ctrl_type(ctrl)\n\n         info = {\n             'name': name,\n",
    "prefixes": [
        "libcamera-devel",
        "v6",
        "4/5"
    ]
}