From patchwork Fri Oct 11 15:39:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Milan Zamazal X-Patchwork-Id: 21591 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 71B75C3260 for ; Fri, 11 Oct 2024 15:39:51 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 1D5356536E; Fri, 11 Oct 2024 17:39:51 +0200 (CEST) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.b="Wkx+8Nt7"; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id C5CAB6536C for ; Fri, 11 Oct 2024 17:39:48 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1728661187; 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=40AUQ0iW9ZwHY5VBmj+MbeNIMBcGYBrbajmUkA4JvDg=; b=Wkx+8Nt7hqE3DREjxf2y2QMXmavFACQDms2wjEOG+msQTnHAht2GLpKAi9Rc8pDWq/YICv rdBrLeMjhyBnyrMpY61mo70HF6f/sTLtc9FjKyjo07wTcSOE3/pMIfcSJoeb/ULNuSAuj0 FTnXJph7FY65A9kKPe91ZxqAdMyxD5c= Received: from mx-prod-mc-02.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-86-3rnvbLL7NI-Tu6sp-1XAGA-1; Fri, 11 Oct 2024 11:39:44 -0400 X-MC-Unique: 3rnvbLL7NI-Tu6sp-1XAGA-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (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-02.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 2701B1955EAA; Fri, 11 Oct 2024 15:39:43 +0000 (UTC) Received: from nuthatch.redhat.com (unknown [10.45.224.99]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 622C81956052; Fri, 11 Oct 2024 15:39:41 +0000 (UTC) From: Milan Zamazal To: libcamera-devel@lists.libcamera.org Cc: Milan Zamazal , Daniel Scally , Kieran Bingham Subject: [PATCH v3 1/1] libcamera: software_isp: Get black level from the camera helper Date: Fri, 11 Oct 2024 17:39:32 +0200 Message-ID: <20241011153934.1291362-2-mzamazal@redhat.com> In-Reply-To: <20241011153934.1291362-1-mzamazal@redhat.com> References: <20241011153934.1291362-1-mzamazal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Mimecast-Spam-Score: 0 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 black level in software ISP is unconditionally guessed from the obtained frames. CameraSensorHelper optionally provides the black level from camera specifications now. Let's use the value if available. If the black level is not available from the given CameraSensorHelper instance, it's still determined on the fly. Signed-off-by: Milan Zamazal Reviewed-by: Kieran Bingham --- src/ipa/simple/algorithms/blc.cpp | 6 +++++- src/ipa/simple/ipa_context.h | 4 ++++ src/ipa/simple/soft_simple.cpp | 9 +++++++++ 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/src/ipa/simple/algorithms/blc.cpp b/src/ipa/simple/algorithms/blc.cpp index b9f2aaa6d..a7af2e12c 100644 --- a/src/ipa/simple/algorithms/blc.cpp +++ b/src/ipa/simple/algorithms/blc.cpp @@ -24,7 +24,8 @@ BlackLevel::BlackLevel() int BlackLevel::configure(IPAContext &context, [[maybe_unused]] const IPAConfigInfo &configInfo) { - context.activeState.blc.level = 255; + context.activeState.blc.level = + context.configuration.black.level.value_or(255); return 0; } @@ -34,6 +35,9 @@ void BlackLevel::process(IPAContext &context, const SwIspStats *stats, [[maybe_unused]] ControlList &metadata) { + if (context.configuration.black.level.has_value()) + return; + if (frameContext.sensor.exposure == exposure_ && frameContext.sensor.gain == gain_) { return; diff --git a/src/ipa/simple/ipa_context.h b/src/ipa/simple/ipa_context.h index 3519f20f6..fd121eebe 100644 --- a/src/ipa/simple/ipa_context.h +++ b/src/ipa/simple/ipa_context.h @@ -8,6 +8,7 @@ #pragma once #include +#include #include #include @@ -22,6 +23,9 @@ struct IPASessionConfiguration { int32_t exposureMin, exposureMax; double againMin, againMax, againMinStep; } agc; + struct { + std::optional level; + } black; }; struct IPAActiveState { diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp index b28c7039f..079409f6d 100644 --- a/src/ipa/simple/soft_simple.cpp +++ b/src/ipa/simple/soft_simple.cpp @@ -201,6 +201,15 @@ int IPASoftSimple::configure(const IPAConfigInfo &configInfo) (context_.configuration.agc.againMax - context_.configuration.agc.againMin) / 100.0; + if (camHelper_->blackLevel().has_value()) + /* + * The black level from camHelper_ is a 16 bit value, software ISP + * works with 8 bit pixel values, both regardless of the actual + * sensor pixel width. Hence we obtain the pixel-based black value + * by dividing the value from the helper by 256. + */ + context_.configuration.black.level = + camHelper_->blackLevel().value() / 256; } else { /* * The camera sensor gain (g) is usually not equal to the value written