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{ "id": 27035, "url": "https://patchwork.libcamera.org/api/patches/27035/?format=api", "web_url": "https://patchwork.libcamera.org/patch/27035/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260624085849.873784-10-bryan.odonoghue@linaro.org>", "date": "2026-06-24T08:58:48", "name": "[09/10] libcamera: software_isp: debayer_egl: Flag dmabuf use once per session not for every frame", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "321250085fb82dd7a408d3172ade7a6674caba8d", "submitter": { "id": 175, "url": "https://patchwork.libcamera.org/api/people/175/?format=api", "name": "Bryan O'Donoghue", "email": "bryan.odonoghue@linaro.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/27035/mbox/", "series": [ { "id": 6015, "url": "https://patchwork.libcamera.org/api/series/6015/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=6015", "date": "2026-06-24T08:58:39", "name": "libcamera: software_isp: gpu: Add go faster stripes", "version": 1, "mbox": "https://patchwork.libcamera.org/series/6015/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/27035/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/27035/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 24CC5C3306\n\tfor <parsemail@patchwork.libcamera.org>;\n\tWed, 24 Jun 2026 08:59:21 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id CDAD065881;\n\tWed, 24 Jun 2026 10:59:20 +0200 (CEST)", "from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com\n\t[IPv6:2a00:1450:4864:20::32e])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 1FA5E6588E\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 24 Jun 2026 10:59:07 +0200 (CEST)", "by mail-wm1-x32e.google.com with SMTP id\n\t5b1f17b1804b1-490c0c92cffso5300535e9.2\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tWed, 24 Jun 2026 01:59:07 -0700 (PDT)", "from inspiron14p-linux ([109.76.100.231])\n\tby smtp.gmail.com with ESMTPSA id\n\t5b1f17b1804b1-49261063d6esm25128375e9.2.2026.06.24.01.59.05\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tWed, 24 Jun 2026 01:59:06 -0700 (PDT)" ], "Authentication-Results": "lancelot.ideasonboard.com; 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\n\tWed, 24 Jun 2026 01:59:06 -0700 (PDT)", "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "bryan.odonoghue@linaro.org,\n\tpavel@ucw.cz", "Subject": "[PATCH 09/10] libcamera: software_isp: debayer_egl: Flag dmabuf use\n\tonce per session not for every frame", "Date": "Wed, 24 Jun 2026 09:58:48 +0100", "Message-ID": "<20260624085849.873784-10-bryan.odonoghue@linaro.org>", "X-Mailer": "git-send-email 2.54.0", "In-Reply-To": "<20260624085849.873784-1-bryan.odonoghue@linaro.org>", "References": "<20260624085849.873784-1-bryan.odonoghue@linaro.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "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": "Once we get as far a streaming if we have one dmabuf import failure, take\nthat failure as canonical and do not try further imports. Add a flag to\ndebayer_egl which gets reset on any configure() to control this logic, flip\nthe dmabuf bit on the first failure for all subsequent frames.\n\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n src/libcamera/software_isp/debayer_egl.cpp | 13 ++++++-------\n src/libcamera/software_isp/debayer_egl.h | 2 ++\n 2 files changed, 8 insertions(+), 7 deletions(-)", "diff": "diff --git a/src/libcamera/software_isp/debayer_egl.cpp b/src/libcamera/software_isp/debayer_egl.cpp\nindex f6b7b11e1..0568c413b 100644\n--- a/src/libcamera/software_isp/debayer_egl.cpp\n+++ b/src/libcamera/software_isp/debayer_egl.cpp\n@@ -316,6 +316,7 @@ int DebayerEGL::configure(const StreamConfiguration &inputCfg,\n \tinputPixelFormat_ = inputCfg.pixelFormat;\n \twidth_ = inputCfg.size.width;\n \theight_ = inputCfg.size.height;\n+\tuse_dmabuf_ = true;\n \n \tif (outputCfgs.size() != 1) {\n \t\tLOG(Debayer, Error)\n@@ -515,21 +516,19 @@ void DebayerEGL::setShaderVariableValues(eGLImage &eglImageIn, const DebayerPara\n \n int DebayerEGL::debayerGPU(FrameBuffer *input, FrameBuffer *output, const DebayerParams ¶ms, std::optional<MappedFrameBuffer> *inMapped, std::optional<DmaSyncer> *inDmaSyncer)\n {\n-\tbool dmabuf_import_succeeded = false;\n-\n \t/* eGL context switch */\n \tegl_.makeCurrent();\n \n \t/* Try to create texture for input buffer via dmabuf import */\n-\tif (!eglImageBayerIn_->dmabuf_import_failed_) {\n-\t\tif (egl_.createInputDMABufTexture2D(*eglImageBayerIn_, input->planes()[0].fd.get()) == 0)\n-\t\t\tdmabuf_import_succeeded = true;\n-\t\telse\n+\tif (use_dmabuf_) {\n+\t\tif (egl_.createInputDMABufTexture2D(*eglImageBayerIn_, input->planes()[0].fd.get()) != 0) {\n+\t\t\tuse_dmabuf_ = false;\n \t\t\tLOG(Debayer, Info) << \"Importing input buffer with DMABuf import failed, falling back to upload\";\n+\t\t}\n \t}\n \n \t/* Otherwise create texture for input buffer via upload from CPU */\n-\tif (!dmabuf_import_succeeded) {\n+\tif (!use_dmabuf_) {\n \t\tinDmaSyncer->emplace(input->planes()[0].fd, DmaSyncer::SyncType::Read);\n \t\tinMapped->emplace(input, MappedFrameBuffer::MapFlag::Read);\n \t\tif (!inMapped->value().isValid()) {\ndiff --git a/src/libcamera/software_isp/debayer_egl.h b/src/libcamera/software_isp/debayer_egl.h\nindex 348d7305b..d8509e9f2 100644\n--- a/src/libcamera/software_isp/debayer_egl.h\n+++ b/src/libcamera/software_isp/debayer_egl.h\n@@ -68,6 +68,8 @@ private:\n \tvoid setShaderVariableValues(eGLImage &eGLImageIn, const DebayerParams ¶ms);\n \tint debayerGPU(FrameBuffer *input, FrameBuffer *output, const DebayerParams ¶ms, std::optional<MappedFrameBuffer> *mappedInputBuffer, std::optional<DmaSyncer> *inputBufferDmaSyncer);\n \n+\tbool use_dmabuf_;\n+\n \t/* Shader program identifiers */\n \tGLuint vertexShaderId_ = 0;\n \tGLuint fragmentShaderId_ = 0;\n", "prefixes": [ "09/10" ] }