{"id":10224,"url":"https://patchwork.libcamera.org/api/patches/10224/?format=json","web_url":"https://patchwork.libcamera.org/patch/10224/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20201023171116.24899-6-jacopo@jmondi.org>","date":"2020-10-23T17:11:09","name":"[libcamera-devel,v4,05/12] libcamera: controls: Generate an array of valid values","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"171e5b4e3cdf4f29c49353f0940c1da11280f36f","submitter":{"id":3,"url":"https://patchwork.libcamera.org/api/people/3/?format=json","name":"Jacopo Mondi","email":"jacopo@jmondi.org"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/10224/mbox/","series":[{"id":1410,"url":"https://patchwork.libcamera.org/api/series/1410/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=1410","date":"2020-10-23T17:11:04","name":"libcamera: Introduce draft controls","version":4,"mbox":"https://patchwork.libcamera.org/series/1410/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/10224/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/10224/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 89147BDB13\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 23 Oct 2020 17:11:32 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 4CF77619A2;\n\tFri, 23 Oct 2020 19:11:32 +0200 (CEST)","from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net\n\t[217.70.183.197])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 337D4615D3\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 23 Oct 2020 19:11:27 +0200 (CEST)","from uno.lan (93-34-118-233.ip49.fastwebnet.it [93.34.118.233])\n\t(Authenticated sender: jacopo@jmondi.org)\n\tby relay5-d.mail.gandi.net (Postfix) with ESMTPSA id A24BD1C0007;\n\tFri, 23 Oct 2020 17:11:26 +0000 (UTC)"],"X-Originating-IP":"93.34.118.233","From":"Jacopo Mondi <jacopo@jmondi.org>","To":"libcamera-devel@lists.libcamera.org","Date":"Fri, 23 Oct 2020 19:11:09 +0200","Message-Id":"<20201023171116.24899-6-jacopo@jmondi.org>","X-Mailer":"git-send-email 2.28.0","In-Reply-To":"<20201023171116.24899-1-jacopo@jmondi.org>","References":"<20201023171116.24899-1-jacopo@jmondi.org>","MIME-Version":"1.0","Subject":"[libcamera-devel] [PATCH v4 05/12] libcamera: controls: Generate an\n\tarray of valid values","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>","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"},"content":"For each Control that support enumerated values generate a vector\nof ControlValues which contains the full list of values.\n\nAt the expense of a slight increase in memory occupation this change\nallows the construction of the ControlInfo associated with a Control\nfrom the values list, defaulting the minimum and maximum values\nreported by the ControlInfo.\n\nReviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>\nSigned-off-by: Jacopo Mondi <jacopo@jmondi.org>\n---\n include/libcamera/control_ids.h.in |  1 +\n src/libcamera/control_ids.cpp.in   |  1 +\n utils/gen-controls.py              | 30 ++++++++++++++++++++++++++++++\n 3 files changed, 32 insertions(+)","diff":"diff --git a/include/libcamera/control_ids.h.in b/include/libcamera/control_ids.h.in\nindex baadca83b103..7edeb6b65e32 100644\n--- a/include/libcamera/control_ids.h.in\n+++ b/include/libcamera/control_ids.h.in\n@@ -10,6 +10,7 @@\n #ifndef __LIBCAMERA_CONTROL_IDS_H__\n #define __LIBCAMERA_CONTROL_IDS_H__\n \n+#include <array>\n #include <stdint.h>\n \n #include <libcamera/controls.h>\ndiff --git a/src/libcamera/control_ids.cpp.in b/src/libcamera/control_ids.cpp.in\nindex 056645cfbdfb..5fb1c2c30558 100644\n--- a/src/libcamera/control_ids.cpp.in\n+++ b/src/libcamera/control_ids.cpp.in\n@@ -8,6 +8,7 @@\n  */\n \n #include <libcamera/control_ids.h>\n+#include <libcamera/controls.h>\n \n /**\n  * \\file control_ids.h\ndiff --git a/utils/gen-controls.py b/utils/gen-controls.py\nindex bf681503f86a..a0bd43fabc31 100755\n--- a/utils/gen-controls.py\n+++ b/utils/gen-controls.py\n@@ -33,6 +33,12 @@ ${description}''')\n ${description}\n  */''')\n     def_template = string.Template('extern const Control<${type}> ${name}(${id_name}, \"${name}\");')\n+    enum_values_doc = string.Template('''/**\n+ * \\\\var ${name}Values\n+ * \\\\brief List of all $name supported values\n+ */''')\n+    enum_values_start = string.Template('''extern const std::array<const ControlValue, ${size}> ${name}Values = {''')\n+    enum_values_values = string.Template('''\\tstatic_cast<int32_t>(${name}),''')\n \n     ctrls_doc = []\n     ctrls_def = []\n@@ -68,6 +74,7 @@ ${description}\n             enum_doc = []\n             enum_doc.append(enum_doc_start_template.substitute(info))\n \n+            num_entries = 0;\n             for entry in enum:\n                 value_info = {\n                     'name' : name,\n@@ -75,11 +82,25 @@ ${description}\n                     'description': format_description(entry['description']),\n                 }\n                 enum_doc.append(enum_doc_value_template.substitute(value_info))\n+                num_entries += 1\n \n             enum_doc = '\\n *\\n'.join(enum_doc)\n             enum_doc += '\\n */'\n             target_doc.append(enum_doc)\n \n+            values_info = {\n+                'name' : info['name'],\n+                'size' : num_entries,\n+            }\n+            target_doc.append(enum_values_doc.substitute(values_info))\n+            target_def.append(enum_values_start.substitute(values_info))\n+            for entry in enum:\n+                value_info = {\n+                    'name' : entry['name']\n+                }\n+                target_def.append(enum_values_values.substitute(value_info))\n+            target_def.append(\"};\")\n+\n         target_doc.append(doc_template.substitute(info))\n         target_def.append(def_template.substitute(info))\n \n@@ -100,6 +121,7 @@ ${description}\n def generate_h(controls):\n     enum_template_start = string.Template('''enum ${name}Enum {''')\n     enum_value_template = string.Template('''\\t${name} = ${value},''')\n+    enum_values_template = string.Template('''extern const std::array<const ControlValue, ${size}> ${name}Values;''')\n     template = string.Template('''extern const Control<${type}> ${name};''')\n \n     ctrls = []\n@@ -132,14 +154,22 @@ def generate_h(controls):\n         if enum:\n             target_ctrls.append(enum_template_start.substitute(info))\n \n+            num_entries = 0\n             for entry in enum:\n                 value_info = {\n                     'name': entry['name'],\n                     'value': entry['value'],\n                 }\n                 target_ctrls.append(enum_value_template.substitute(value_info))\n+                num_entries += 1\n             target_ctrls.append(\"};\")\n \n+            values_info = {\n+                'name' : info['name'],\n+                'size' : num_entries,\n+            }\n+            target_ctrls.append(enum_values_template.substitute(values_info))\n+\n         target_ctrls.append(template.substitute(info))\n         id_value += 1\n \n","prefixes":["libcamera-devel","v4","05/12"]}