From patchwork Fri Aug 21 12:59:57 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Milan Zamazal X-Patchwork-Id: 27961 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id 7458FC3339 for ; Fri, 21 Aug 2026 13:00:38 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 2847B68371; Fri, 21 Aug 2026 15:00:38 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="B1dAxtRd"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id A90ED68307 for ; Fri, 21 Aug 2026 15:00:34 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1787317233; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=9vQGwj37N3cLkcqClHQTF/FC4THK55jPKLNM/61MBpI=; b=B1dAxtRdtS0sr17z+2DopQdAKvvyi+XstFP5UtgUup4jCGhh2Yw4gU4PV6mhpn18rZy8MN aPbIbU0/7JqdIUZrS2EFe2kNs65wyWHpMdGuvYrQ/b1FsYkjKcWFkoHxqKNBDVC+Uk5TTV gm08/0XY1otbUQrM7xZfmHpq3i91vkI= Received: from mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (ec2-35-165-154-97.us-west-2.compute.amazonaws.com [35.165.154.97]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-567-aqtX0y5ePYWxIQ4-W9hryg-1; Fri, 21 Aug 2026 09:00:28 -0400 X-MC-Unique: aqtX0y5ePYWxIQ4-W9hryg-1 X-Mimecast-MFC-AGG-ID: aqtX0y5ePYWxIQ4-W9hryg_1787317226 Received: from mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.12]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 9D86218015FA; Fri, 21 Aug 2026 13:00:26 +0000 (UTC) Received: from mzamazal-thinkpadp1gen7.redhat.corp (headnet05.pony-001.prod.iad2.dc.redhat.com [10.2.32.117]) by mx-prod-int-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 8F9471955F06; Fri, 21 Aug 2026 13:00:24 +0000 (UTC) From: Milan Zamazal To: libcamera-devel@lists.libcamera.org Cc: Milan Zamazal , Bryan O'Donoghue , Hans de Goede , Laurent Pinchart , Robert Mader , =?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= Subject: [PATCH v14 5/6] libcamera: software_isp: Pass LSC availability to debayering Date: Fri, 21 Aug 2026 14:59:57 +0200 Message-ID: <20260821125958.95928-6-mzamazal@redhat.com> In-Reply-To: <20260821125958.95928-1-mzamazal@redhat.com> References: <20260821125958.95928-1-mzamazal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: B-fVWtTdqB2Cx0Wcj0zD-XVqvGB8v_pcffgZzE4ySVI_1787317226 X-Mimecast-Originator: redhat.com X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" The lens shading algorithm may or may not be enabled in the tuning file. Debayering configuration needs this information to arrange things accordingly, e.g. to set up shader parameters. Let's add a corresponding flag that is set in the LSC algorithm (if present) and passed to Debayer::configure. This is similar to what we already do with CCM availability. The flag is ignored by CPU ISP, where LSC is not going to be implemented for now. Reviewed-by: Bryan O'Donoghue Signed-off-by: Milan Zamazal Reviewed-by: Barnabás Pőcze --- include/libcamera/internal/software_isp/software_isp.h | 1 + include/libcamera/ipa/softisp.mojom | 4 +++- src/ipa/softisp/algorithms/lsc.cpp | 8 +++++++- src/ipa/softisp/ipa_context.h | 1 + src/ipa/softisp/softisp.cpp | 7 +++++-- src/libcamera/software_isp/debayer.cpp | 1 + src/libcamera/software_isp/debayer.h | 3 ++- src/libcamera/software_isp/debayer_cpu.cpp | 3 ++- src/libcamera/software_isp/debayer_cpu.h | 3 ++- src/libcamera/software_isp/debayer_egl.cpp | 5 ++++- src/libcamera/software_isp/debayer_egl.h | 4 +++- src/libcamera/software_isp/software_isp.cpp | 5 +++-- 12 files changed, 34 insertions(+), 11 deletions(-) diff --git a/include/libcamera/internal/software_isp/software_isp.h b/include/libcamera/internal/software_isp/software_isp.h index da893d242..a7e0097cf 100644 --- a/include/libcamera/internal/software_isp/software_isp.h +++ b/include/libcamera/internal/software_isp/software_isp.h @@ -100,6 +100,7 @@ private: DebayerParams debayerParams_; DmaBufAllocator dmaHeap_; bool ccmEnabled_; + bool lscEnabled_; std::unique_ptr ipa_; std::deque queuedInputBuffers_; diff --git a/include/libcamera/ipa/softisp.mojom b/include/libcamera/ipa/softisp.mojom index a892d84f1..e7cc42ead 100644 --- a/include/libcamera/ipa/softisp.mojom +++ b/include/libcamera/ipa/softisp.mojom @@ -18,7 +18,9 @@ interface IPASoftIspInterface { libcamera.SharedFD fdParams, libcamera.IPACameraSensorInfo sensorInfo, libcamera.ControlInfoMap sensorControls) - => (int32 ret, libcamera.ControlInfoMap ipaControls, bool ccmEnabled); + => (int32 ret, + libcamera.ControlInfoMap ipaControls, + bool ccmEnabled, bool lscEnabled); start() => (int32 ret); stop(); configure(IPAConfigInfo configInfo) diff --git a/src/ipa/softisp/algorithms/lsc.cpp b/src/ipa/softisp/algorithms/lsc.cpp index e05e1bb89..d0dd39c8e 100644 --- a/src/ipa/softisp/algorithms/lsc.cpp +++ b/src/ipa/softisp/algorithms/lsc.cpp @@ -20,11 +20,17 @@ int Lsc::init(IPAContext &context, const ValueNode &tuningData) for (unsigned int i = 0; i < kGridSize; i++) gridPos_.push_back(static_cast(i) / (kGridSize - 1)); - return lscAlgo_.init(tuningData, context.ctrlMap, + int ret = lscAlgo_.init(tuningData, context.ctrlMap, { .keys = { "r", "g", "b" }, .numHSamples = kGridSize, .numVSamples = kGridSize, .sensorSize = context.sensorInfo.activeAreaSize }); + if (ret) + return ret; + + context.lscEnabled = true; + + return 0; } int Lsc::configure(IPAContext &context, diff --git a/src/ipa/softisp/ipa_context.h b/src/ipa/softisp/ipa_context.h index e9c3eef0e..320ce4cf4 100644 --- a/src/ipa/softisp/ipa_context.h +++ b/src/ipa/softisp/ipa_context.h @@ -93,6 +93,7 @@ struct IPAContext { FCQueue frameContexts; ControlInfoMap::Map ctrlMap; bool ccmEnabled = false; + bool lscEnabled = false; ipa::lsc::ActiveState lsc; }; diff --git a/src/ipa/softisp/softisp.cpp b/src/ipa/softisp/softisp.cpp index 41d3e23d8..44175034c 100644 --- a/src/ipa/softisp/softisp.cpp +++ b/src/ipa/softisp/softisp.cpp @@ -57,7 +57,8 @@ public: const IPACameraSensorInfo &sensorInfo, const ControlInfoMap &sensorControls, ControlInfoMap *ipaControls, - bool *ccmEnabled) override; + bool *ccmEnabled, + bool *lscEnabled) override; int configure(const IPAConfigInfo &configInfo) override; int start() override; @@ -97,7 +98,8 @@ int IPASoftIsp::init(const IPASettings &settings, const IPACameraSensorInfo &sensorInfo, const ControlInfoMap &sensorControls, ControlInfoMap *ipaControls, - bool *ccmEnabled) + bool *ccmEnabled, + bool *lscEnabled) { camHelper_ = CameraSensorHelperFactoryBase::create(settings.sensorModel); if (!camHelper_) { @@ -136,6 +138,7 @@ int IPASoftIsp::init(const IPASettings &settings, return ret; *ccmEnabled = context_.ccmEnabled; + *lscEnabled = context_.lscEnabled; params_ = nullptr; stats_ = nullptr; diff --git a/src/libcamera/software_isp/debayer.cpp b/src/libcamera/software_isp/debayer.cpp index 6ebf7ed1a..8295b8fc2 100644 --- a/src/libcamera/software_isp/debayer.cpp +++ b/src/libcamera/software_isp/debayer.cpp @@ -107,6 +107,7 @@ Debayer::~Debayer() * \param[in] inputCfg The input configuration * \param[in] outputCfgs The output configurations * \param[in] ccmEnabled Whether a color correction matrix is applied + * \param[in] lscEnabled Whether lens shading correction grid is provided * * \return 0 on success, a negative errno on failure */ diff --git a/src/libcamera/software_isp/debayer.h b/src/libcamera/software_isp/debayer.h index 556852260..e30a05279 100644 --- a/src/libcamera/software_isp/debayer.h +++ b/src/libcamera/software_isp/debayer.h @@ -40,7 +40,8 @@ public: virtual int configure(const StreamConfiguration &inputCfg, const std::vector> &outputCfgs, - bool ccmEnabled) = 0; + bool ccmEnabled, + bool lscEnabled) = 0; virtual std::vector formats(PixelFormat inputFormat) = 0; diff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp index c6d5d1e18..acff87fc0 100644 --- a/src/libcamera/software_isp/debayer_cpu.cpp +++ b/src/libcamera/software_isp/debayer_cpu.cpp @@ -624,7 +624,8 @@ int DebayerCpu::setDebayerFunctions(PixelFormat inputFormat, int DebayerCpu::configure(const StreamConfiguration &inputCfg, const std::vector> &outputCfgs, - bool ccmEnabled) + bool ccmEnabled, + [[maybe_unused]] bool lscEnabled) { if (getInputConfig(inputCfg.pixelFormat, inputConfig_) != 0) return -EINVAL; diff --git a/src/libcamera/software_isp/debayer_cpu.h b/src/libcamera/software_isp/debayer_cpu.h index 2c88c9e1a..ae570893b 100644 --- a/src/libcamera/software_isp/debayer_cpu.h +++ b/src/libcamera/software_isp/debayer_cpu.h @@ -37,7 +37,8 @@ public: int configure(const StreamConfiguration &inputCfg, const std::vector> &outputCfgs, - bool ccmEnabled) override; + bool ccmEnabled, + bool lscEnabled) override; Size patternSize(PixelFormat inputFormat) override; std::vector formats(PixelFormat input) override; std::tuple diff --git a/src/libcamera/software_isp/debayer_egl.cpp b/src/libcamera/software_isp/debayer_egl.cpp index 53bee2581..b01a0733c 100644 --- a/src/libcamera/software_isp/debayer_egl.cpp +++ b/src/libcamera/software_isp/debayer_egl.cpp @@ -273,7 +273,8 @@ int DebayerEGL::initBayerShaders(PixelFormat inputFormat, PixelFormat outputForm int DebayerEGL::configure(const StreamConfiguration &inputCfg, const std::vector> &outputCfgs, - [[maybe_unused]] bool ccmEnabled) + [[maybe_unused]] bool ccmEnabled, + bool lscEnabled) { if (getInputConfig(inputCfg.pixelFormat, inputConfig_) != 0) return -EINVAL; @@ -290,6 +291,8 @@ int DebayerEGL::configure(const StreamConfiguration &inputCfg, return -EINVAL; } + lscEnabled_ = lscEnabled; + inputConfig_.stride = inputCfg.stride; inputPixelFormat_ = inputCfg.pixelFormat; width_ = inputCfg.size.width; diff --git a/src/libcamera/software_isp/debayer_egl.h b/src/libcamera/software_isp/debayer_egl.h index 30e51a477..a64dc925a 100644 --- a/src/libcamera/software_isp/debayer_egl.h +++ b/src/libcamera/software_isp/debayer_egl.h @@ -45,7 +45,8 @@ public: int configure(const StreamConfiguration &inputCfg, const std::vector> &outputCfgs, - bool ccmEnabled) override; + bool ccmEnabled, + bool lscEnabled) override; Size patternSize(PixelFormat inputFormat) override; @@ -82,6 +83,7 @@ private: unsigned int inputBufferCount_; unsigned int outputBufferCount_; + bool lscEnabled_; /* Shader parameters */ float firstRed_x_; float firstRed_y_; diff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp index ae86c20a8..5abc5831f 100644 --- a/src/libcamera/software_isp/software_isp.cpp +++ b/src/libcamera/software_isp/software_isp.cpp @@ -164,7 +164,8 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor, sensorInfo, sensor->controls(), ipaControls, - &ccmEnabled_); + &ccmEnabled_, + &lscEnabled_); if (ret) { LOG(SoftwareIsp, Error) << "IPA init failed"; debayer_.reset(); @@ -293,7 +294,7 @@ int SoftwareIsp::configure(const StreamConfiguration &inputCfg, if (ret < 0) return ret; - ret = debayer_->configure(inputCfg, outputCfgs, ccmEnabled_); + ret = debayer_->configure(inputCfg, outputCfgs, ccmEnabled_, lscEnabled_); if (ret < 0) return ret;