From patchwork Sun Jan 18 20:31:15 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rui Wang X-Patchwork-Id: 25833 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 38F60BDCBE for ; Sun, 18 Jan 2026 20:31:45 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 0A7CF61FBC; Sun, 18 Jan 2026 21:31:45 +0100 (CET) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="bIX2BsuA"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id EEB3861FBC for ; Sun, 18 Jan 2026 21:31:42 +0100 (CET) Received: from rui-Precision-7560.local (unknown [209.216.103.65]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 9AE4046F; Sun, 18 Jan 2026 21:31:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1768768273; bh=5RYKdhPLFjdkHs9hT2pFQTs3z26LqZZU70bAqj4cX3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bIX2BsuA2wILTW3aPWfitjSMxNf0VJtgm0vl68PWUkp89/cwC2vq7SSENA2LUVPRl wABZ4BYOvzw9WkdSXwd+f29Rt24z8CZkKdZPlMt+cN0k2Vxx8IaGD5ZKbgwYeG5INy fKSz86ZOXb36gc+xpchpF3RWSTkZ7gMfxWkQS8qo= From: Rui Wang To: libcamera-devel@lists.libcamera.org Cc: Rui Wang , Jacopo Mondi Subject: [PATCH v9 3/6] ipa: rkisp1: algorithms: dpf: Refactor prepare() into helpers Date: Sun, 18 Jan 2026 15:31:15 -0500 Message-ID: <20260118203119.1554962-4-rui.wang@ideasonboard.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260118203119.1554962-1-rui.wang@ideasonboard.com> References: <20260118203119.1554962-1-rui.wang@ideasonboard.com> MIME-Version: 1.0 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" Split the prepare() function into prepareDisabledMode() and prepareEnabledMode() to improve readability and maintainability. This separates the logic for disabling and enabling the DPF, making the main prepare() function cleaner and easier to follow. Signed-off-by: Rui Wang Reviewed-by: Jacopo Mondi --- changelog since v5/v6: Nothing changed changelog since v8 : - remove [[maybe_unused] for prepareEnable and prepareDisable Reviewed-by tags from v5 are carried over (no code changes). --- src/ipa/rkisp1/algorithms/dpf.cpp | 80 +++++++++++++++++++------------ src/ipa/rkisp1/algorithms/dpf.h | 3 ++ 2 files changed, 52 insertions(+), 31 deletions(-) diff --git a/src/ipa/rkisp1/algorithms/dpf.cpp b/src/ipa/rkisp1/algorithms/dpf.cpp index d79cc5ff..f300d0a5 100644 --- a/src/ipa/rkisp1/algorithms/dpf.cpp +++ b/src/ipa/rkisp1/algorithms/dpf.cpp @@ -338,40 +338,58 @@ void Dpf::prepare(IPAContext &context, const uint32_t frame, if (!frameContext.dpf.update && frame > 0) return; + if (!frameContext.dpf.denoise) { + prepareDisabledMode(params); + return; + } + + prepareEnabledMode(context, params); +} + +void Dpf::prepareDisabledMode(RkISP1Params *params) +{ + auto dpfConfig = params->block(); + dpfConfig.setEnabled(false); + auto dpfStrength = params->block(); + dpfStrength.setEnabled(false); +} + +void Dpf::prepareEnabledMode(IPAContext &context, RkISP1Params *params) +{ + if (activeMode_ == noiseReductionModes_.end()) + return; + + const ModeConfig &modeConfig = *activeMode_; + auto config = params->block(); - config.setEnabled(frameContext.dpf.denoise); + config.setEnabled(true); + *config = modeConfig.dpf; + + const auto &awb = context.configuration.awb; + const auto &lsc = context.configuration.lsc; + + auto &mode = config->gain.mode; + + /* + * The DPF needs to take into account the total amount of + * digital gain, which comes from the AWB and LSC modules. The + * DPF hardware can be programmed with a digital gain value + * manually, but can also use the gains supplied by the AWB and + * LSC modules automatically when they are enabled. Use that + * mode of operation as it simplifies control of the DPF. + */ + if (awb.enabled && lsc.enabled) + mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS; + else if (awb.enabled) + mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS; + else if (lsc.enabled) + mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS; + else + mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED; auto strengthConfig = params->block(); - strengthConfig.setEnabled(frameContext.dpf.denoise); - - if (frameContext.dpf.denoise) { - const ModeConfig &modeConfig = *activeMode_; - - *config = modeConfig.dpf; - *strengthConfig = modeConfig.strength; - - const auto &awb = context.configuration.awb; - const auto &lsc = context.configuration.lsc; - - auto &mode = config->gain.mode; - - /* - * The DPF needs to take into account the total amount of - * digital gain, which comes from the AWB and LSC modules. The - * DPF hardware can be programmed with a digital gain value - * manually, but can also use the gains supplied by the AWB and - * LSC modules automatically when they are enabled. Use that - * mode of operation as it simplifies control of the DPF. - */ - if (awb.enabled && lsc.enabled) - mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_LSC_GAINS; - else if (awb.enabled) - mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_AWB_GAINS; - else if (lsc.enabled) - mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS; - else - mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED; - } + strengthConfig.setEnabled(true); + *strengthConfig = modeConfig.strength; } REGISTER_IPA_ALGORITHM(Dpf, "Dpf") diff --git a/src/ipa/rkisp1/algorithms/dpf.h b/src/ipa/rkisp1/algorithms/dpf.h index 11fc88e4..df9d5746 100644 --- a/src/ipa/rkisp1/algorithms/dpf.h +++ b/src/ipa/rkisp1/algorithms/dpf.h @@ -43,6 +43,9 @@ private: bool loadConfig(int32_t mode); + void prepareDisabledMode(RkISP1Params *params); + void prepareEnabledMode(IPAContext &context, RkISP1Params *params); + std::vector noiseReductionModes_; std::vector::const_iterator activeMode_; };