{"id":12355,"url":"https://patchwork.libcamera.org/api/1.1/patches/12355/?format=json","web_url":"https://patchwork.libcamera.org/patch/12355/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/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":"<20210521154227.60186-5-jacopo@jmondi.org>","date":"2021-05-21T15:42:23","name":"[libcamera-devel,v3,4/8] android: camera_device: Replace running_ with CameraState","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"785c553b30a806cfa2027fc4d284af7b100a4877","submitter":{"id":3,"url":"https://patchwork.libcamera.org/api/1.1/people/3/?format=json","name":"Jacopo Mondi","email":"jacopo@jmondi.org"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/12355/mbox/","series":[{"id":2045,"url":"https://patchwork.libcamera.org/api/1.1/series/2045/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=2045","date":"2021-05-21T15:42:19","name":"Implement flush() camera operation","version":3,"mbox":"https://patchwork.libcamera.org/series/2045/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/12355/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/12355/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 142E8C31FF\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 21 May 2021 15:41:54 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id AB4BF68930;\n\tFri, 21 May 2021 17:41:53 +0200 (CEST)","from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net\n\t[217.70.183.201])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 6AA8A6891B\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tFri, 21 May 2021 17:41:49 +0200 (CEST)","(Authenticated sender: jacopo@jmondi.org)\n\tby relay8-d.mail.gandi.net (Postfix) with ESMTPSA id 80E331BF20F;\n\tFri, 21 May 2021 15:41:48 +0000 (UTC)"],"From":"Jacopo Mondi <jacopo@jmondi.org>","To":"libcamera-devel@lists.libcamera.org","Date":"Fri, 21 May 2021 17:42:23 +0200","Message-Id":"<20210521154227.60186-5-jacopo@jmondi.org>","X-Mailer":"git-send-email 2.31.1","In-Reply-To":"<20210521154227.60186-1-jacopo@jmondi.org>","References":"<20210521154227.60186-1-jacopo@jmondi.org>","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","Subject":"[libcamera-devel] [PATCH v3 4/8] android: camera_device: Replace\n\trunning_ with CameraState","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>","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"},"content":"The CameraDevice class maintains the camera state in the 'running_'\nboolean flag to check if the camera has to be started at the first\nreceived process_capture_request() call which happens after the camera\nhad been stopped.\n\nSo far this was correct, as the operations that change the camera\ncould only start or stop the camera, so a simple boolean flag\nwas enough.\n\nTo prepare to handle the flush() operation that will introduce a new\n'flushing' state, replace the simple plain boolean flag with an\nenumeration of values that define the CameraState.\n\nSigned-off-by: Jacopo Mondi <jacopo@jmondi.org>\nReviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>\nReviewed-by: Hirokazu Honda <hiroh@chromium.org>\n---\n src/android/camera_device.cpp | 10 +++++-----\n src/android/camera_device.h   |  8 +++++++-\n 2 files changed, 12 insertions(+), 6 deletions(-)","diff":"diff --git a/src/android/camera_device.cpp b/src/android/camera_device.cpp\nindex bd96b355ea92..cf0e5e459213 100644\n--- a/src/android/camera_device.cpp\n+++ b/src/android/camera_device.cpp\n@@ -402,7 +402,7 @@ CameraDevice::Camera3RequestDescriptor::Camera3RequestDescriptor(\n  */\n \n CameraDevice::CameraDevice(unsigned int id, std::shared_ptr<Camera> camera)\n-\t: id_(id), running_(false), camera_(std::move(camera)),\n+\t: id_(id), state_(CameraStopped), camera_(std::move(camera)),\n \t  facing_(CAMERA_FACING_FRONT), orientation_(0)\n {\n \tcamera_->requestCompleted.connect(this, &CameraDevice::requestComplete);\n@@ -758,14 +758,14 @@ void CameraDevice::close()\n \n void CameraDevice::stop()\n {\n-\tif (!running_)\n+\tif (state_ == CameraStopped)\n \t\treturn;\n \n \tworker_.stop();\n \tcamera_->stop();\n \n \tdescriptors_.clear();\n-\trunning_ = false;\n+\tstate_ = CameraStopped;\n }\n \n void CameraDevice::setCallbacks(const camera3_callback_ops_t *callbacks)\n@@ -1844,7 +1844,7 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\treturn -EINVAL;\n \n \t/* Start the camera if that's the first request we handle. */\n-\tif (!running_) {\n+\tif (state_ == CameraStopped) {\n \t\tworker_.start();\n \n \t\tint ret = camera_->start();\n@@ -1853,7 +1853,7 @@ int CameraDevice::processCaptureRequest(camera3_capture_request_t *camera3Reques\n \t\t\treturn ret;\n \t\t}\n \n-\t\trunning_ = true;\n+\t\tstate_ = CameraRunning;\n \t}\n \n \t/*\ndiff --git a/src/android/camera_device.h b/src/android/camera_device.h\nindex a34e8a2cd900..995b423c6deb 100644\n--- a/src/android/camera_device.h\n+++ b/src/android/camera_device.h\n@@ -88,6 +88,11 @@ private:\n \t\tint androidFormat;\n \t};\n \n+\tenum State {\n+\t\tCameraStopped,\n+\t\tCameraRunning,\n+\t};\n+\n \tvoid stop();\n \n \tint initializeStreamConfigurations();\n@@ -114,7 +119,8 @@ private:\n \n \tCameraWorker worker_;\n \n-\tbool running_;\n+\tState state_;\n+\n \tstd::shared_ptr<libcamera::Camera> camera_;\n \tstd::unique_ptr<libcamera::CameraConfiguration> config_;\n \n","prefixes":["libcamera-devel","v3","4/8"]}