[{"id":37264,"web_url":"https://patchwork.libcamera.org/comment/37264/","msgid":"<85y0na2sx0.fsf@mzamazal-thinkpadp1gen7.tpbc.csb>","date":"2025-12-10T16:38:51","subject":"Re: [PATCH v7 20/26] libcamera: software_isp: ccm: Implement a\n\tstatic init() routine","submitter":{"id":177,"url":"https://patchwork.libcamera.org/api/people/177/","name":"Milan Zamazal","email":"mzamazal@redhat.com"},"content":"Bryan O'Donoghue <bryan.odonoghue@linaro.org> writes:\n\n> This is an overloaded init() \n\nNo longer overloaded in the C++ sense, right?\n\n> routine that allows the CCM class to self enumerate a default identity\n> CCM at colour temperature 6500k.\n>\n> This is required for the case where we are running GPUISP but don't have a\n> CCM for the sensor. In this case we want to generate a default CCM and use\n> it instead of using the CPUISP's lookup tables.\n>\n> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n> ---\n>  src/ipa/simple/algorithms/ccm.cpp | 25 +++++++++++++++++++------\n>  1 file changed, 19 insertions(+), 6 deletions(-)\n>\n> diff --git a/src/ipa/simple/algorithms/ccm.cpp b/src/ipa/simple/algorithms/ccm.cpp\n> index 0a98406c1..38c18806e 100644\n> --- a/src/ipa/simple/algorithms/ccm.cpp\n> +++ b/src/ipa/simple/algorithms/ccm.cpp\n> @@ -27,13 +27,26 @@ namespace ipa::soft::algorithms {\n>  \n>  LOG_DEFINE_CATEGORY(IPASoftCcm)\n>  \n> -int Ccm::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData)\n> +int Ccm::init([[maybe_unused]] IPAContext &context,[[maybe_unused]] const YamlObject &tuningData)\n>  {\n> -\tint ret = ccm_.readYaml(tuningData[\"ccms\"], \"ct\", \"ccm\");\n> -\tif (ret < 0) {\n> -\t\tLOG(IPASoftCcm, Error)\n> -\t\t\t<< \"Failed to parse 'ccm' parameter from tuning file.\";\n> -\t\treturn ret;\n> +\tif (!context.selfInitialising) {\n> +\t\tint ret = ccm_.readYaml(tuningData[\"ccms\"], \"ct\", \"ccm\");\n> +\t\tif (ret < 0) {\n> +\t\t\tLOG(IPASoftCcm, Error)\n> +\t\t\t\t<< \"Failed to parse 'ccm' parameter from tuning file.\";\n> +\t\t\treturn ret;\n> +\t\t}\n> +\t} else {\n> +\t\t/* Initialize with identity CCM at standard D65 color temperature */\n> +\t\tfloat identity[] = { 1, 0, 0,\n> +\t\t\t\t     0, 1, 0,\n> +\t\t\t\t     0, 0, 1 };\n> +\t\tMatrix<float, 3, 3> identityMatrix(identity);\n\nWe have a common definition that can be used here:\n\n  Matrix<float, 3, 3> identityMatrix = Matrix<float, 3, 3>::identity();\n\n> +\t\tstd::map<unsigned int, Matrix<float, 3, 3>> ccmData;\n> +\t\tccmData[6500] = identityMatrix;\n> +\n> +\t\tccm_ = Interpolator<Matrix<float, 3, 3>>(std::move(ccmData));\n>  \t}\n>  \n>  \tcontext.ccmEnabled = true;","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 F2347BD1F1\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 10 Dec 2025 16:39:02 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id EF8456149B;\n\tWed, 10 Dec 2025 17:39:01 +0100 (CET)","from us-smtp-delivery-124.mimecast.com\n\t(us-smtp-delivery-124.mimecast.com [170.10.129.124])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 919E361480\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 10 Dec 2025 17:39:00 +0100 (CET)","from mail-wm1-f70.google.com (mail-wm1-f70.google.com\n\t[209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS\n\t(version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id\n\tus-mta-3-Hwqs5PgmNj2AFxVRSOgr_A-1; 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\n\tWed, 10 Dec 2025 08:38:53 -0800 (PST)","by 2002:a05:600c:1389:b0:477:54cd:2030 with SMTP id\n\t5b1f17b1804b1-47a8384375fmr29628045e9.21.1765384732716; \n\tWed, 10 Dec 2025 08:38:52 -0800 (PST)"],"X-Google-Smtp-Source":"AGHT+IEnlirjC7T2DD1IZtSYBAqjNg3psePVnOBmrGFDjtgBAhfWIdwUZXA9QBAYnFH4gQgiP6fTYw==","From":"Milan Zamazal <mzamazal@redhat.com>","To":"Bryan O'Donoghue <bryan.odonoghue@linaro.org>","Cc":"libcamera-devel@lists.libcamera.org,  pavel@ucw.cz","Subject":"Re: [PATCH v7 20/26] libcamera: software_isp: ccm: Implement a\n\tstatic init() routine","In-Reply-To":"<20251210005354.44726-21-bryan.odonoghue@linaro.org> (Bryan\n\tO'Donoghue's message of \"Wed, 10 Dec 2025 00:53:48 +0000\")","References":"<20251210005354.44726-1-bryan.odonoghue@linaro.org>\n\t<20251210005354.44726-21-bryan.odonoghue@linaro.org>","Date":"Wed, 10 Dec 2025 17:38:51 +0100","Message-ID":"<85y0na2sx0.fsf@mzamazal-thinkpadp1gen7.tpbc.csb>","User-Agent":"Gnus/5.13 (Gnus v5.13)","MIME-Version":"1.0","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"0ARqp-wTmTc-m18MP-5X-sFxlpZwLOBJUjyk1XAhei0_1765384733","X-Mimecast-Originator":"redhat.com","Content-Type":"text/plain","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>"}},{"id":37265,"web_url":"https://patchwork.libcamera.org/comment/37265/","msgid":"<85tsxy2suy.fsf@mzamazal-thinkpadp1gen7.tpbc.csb>","date":"2025-12-10T16:40:05","subject":"Re: [PATCH v7 20/26] libcamera: software_isp: ccm: Implement a\n\tstatic init() routine","submitter":{"id":177,"url":"https://patchwork.libcamera.org/api/people/177/","name":"Milan Zamazal","email":"mzamazal@redhat.com"},"content":"Bryan O'Donoghue <bryan.odonoghue@linaro.org> writes:\n\n> This is an overloaded init() routine that allows the CCM class to self\n> enumerate a default identity CCM at colour temperature 6500k.\n>\n> This is required for the case where we are running GPUISP but don't have a\n> CCM for the sensor. In this case we want to generate a default CCM and use\n> it instead of using the CPUISP's lookup tables.\n>\n> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n> ---\n>  src/ipa/simple/algorithms/ccm.cpp | 25 +++++++++++++++++++------\n>  1 file changed, 19 insertions(+), 6 deletions(-)\n>\n> diff --git a/src/ipa/simple/algorithms/ccm.cpp b/src/ipa/simple/algorithms/ccm.cpp\n> index 0a98406c1..38c18806e 100644\n> --- a/src/ipa/simple/algorithms/ccm.cpp\n> +++ b/src/ipa/simple/algorithms/ccm.cpp\n> @@ -27,13 +27,26 @@ namespace ipa::soft::algorithms {\n>  \n>  LOG_DEFINE_CATEGORY(IPASoftCcm)\n>  \n> -int Ccm::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData)\n> +int Ccm::init([[maybe_unused]] IPAContext &context,[[maybe_unused]] const YamlObject &tuningData)\n\nAnd a missing space after the comma.\n\n>  {\n> -\tint ret = ccm_.readYaml(tuningData[\"ccms\"], \"ct\", \"ccm\");\n> -\tif (ret < 0) {\n> -\t\tLOG(IPASoftCcm, Error)\n> -\t\t\t<< \"Failed to parse 'ccm' parameter from tuning file.\";\n> -\t\treturn ret;\n> +\tif (!context.selfInitialising) {\n> +\t\tint ret = ccm_.readYaml(tuningData[\"ccms\"], \"ct\", \"ccm\");\n> +\t\tif (ret < 0) {\n> +\t\t\tLOG(IPASoftCcm, Error)\n> +\t\t\t\t<< \"Failed to parse 'ccm' parameter from tuning file.\";\n> +\t\t\treturn ret;\n> +\t\t}\n> +\t} else {\n> +\t\t/* Initialize with identity CCM at standard D65 color temperature */\n> +\t\tfloat identity[] = { 1, 0, 0,\n> +\t\t\t\t     0, 1, 0,\n> +\t\t\t\t     0, 0, 1 };\n> +\t\tMatrix<float, 3, 3> identityMatrix(identity);\n> +\n> +\t\tstd::map<unsigned int, Matrix<float, 3, 3>> ccmData;\n> +\t\tccmData[6500] = identityMatrix;\n> +\n> +\t\tccm_ = Interpolator<Matrix<float, 3, 3>>(std::move(ccmData));\n>  \t}\n>  \n>  \tcontext.ccmEnabled = true;","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 68264C3257\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 10 Dec 2025 16:40:12 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 1A59E614A7;\n\tWed, 10 Dec 2025 17:40:12 +0100 (CET)","from us-smtp-delivery-124.mimecast.com\n\t(us-smtp-delivery-124.mimecast.com [170.10.133.124])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id CFE4261480\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 10 Dec 2025 17:40:10 +0100 (CET)","from mail-wr1-f71.google.com (mail-wr1-f71.google.com\n\t[209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS\n\t(version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id\n\tus-mta-70-2H8MsMfpOceW9ONqO1nTrw-1; 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\n\tWed, 10 Dec 2025 08:40:06 -0800 (PST)","by 2002:a05:6000:2486:b0:42b:3701:c4c6 with SMTP id\n\tffacd0b85a97d-42fa3b0fbd6mr3304212f8f.38.1765384806494; \n\tWed, 10 Dec 2025 08:40:06 -0800 (PST)"],"X-Google-Smtp-Source":"AGHT+IHQom9ZhGEfOzSVDHByIi9meOGRLQtKWSfXFtjRa9bJRcAGEO544fQBVoJ48r8Mtdnm6Toeqw==","From":"Milan Zamazal <mzamazal@redhat.com>","To":"Bryan O'Donoghue <bryan.odonoghue@linaro.org>","Cc":"libcamera-devel@lists.libcamera.org,  pavel@ucw.cz","Subject":"Re: [PATCH v7 20/26] libcamera: software_isp: ccm: Implement a\n\tstatic init() routine","In-Reply-To":"<20251210005354.44726-21-bryan.odonoghue@linaro.org> (Bryan\n\tO'Donoghue's message of \"Wed, 10 Dec 2025 00:53:48 +0000\")","References":"<20251210005354.44726-1-bryan.odonoghue@linaro.org>\n\t<20251210005354.44726-21-bryan.odonoghue@linaro.org>","Date":"Wed, 10 Dec 2025 17:40:05 +0100","Message-ID":"<85tsxy2suy.fsf@mzamazal-thinkpadp1gen7.tpbc.csb>","User-Agent":"Gnus/5.13 (Gnus v5.13)","MIME-Version":"1.0","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"ox4tdSCM1OkoBkboczGD96hzlAY8OHUBMAPBvmOdUvs_1765384807","X-Mimecast-Originator":"redhat.com","Content-Type":"text/plain","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>"}}]