{"id":27369,"url":"https://patchwork.libcamera.org/api/patches/27369/?format=json","web_url":"https://patchwork.libcamera.org/patch/27369/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260716222515.251464-2-mzamazal@redhat.com>","date":"2026-07-16T22:25:08","name":"[RFC,v8,1/6] libcamera: software_isp: egl: Add filter parameter to createTexture2D()","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"e98b282e5691e792646d0201ab316a8cd1e632c9","submitter":{"id":177,"url":"https://patchwork.libcamera.org/api/people/177/?format=json","name":"Milan Zamazal","email":"mzamazal@redhat.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/27369/mbox/","series":[{"id":6060,"url":"https://patchwork.libcamera.org/api/series/6060/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=6060","date":"2026-07-16T22:25:07","name":"LSC for SoftISP simple pipeline","version":8,"mbox":"https://patchwork.libcamera.org/series/6060/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/27369/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/27369/checks/","tags":{},"headers":{"Return-Path":"","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 A83D1C3304\n\tfor ;\n\tThu, 16 Jul 2026 22:25:37 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 23B5B67E32;\n\tFri, 17 Jul 2026 00:25:37 +0200 (CEST)","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 D541667E25\n\tfor ;\n\tFri, 17 Jul 2026 00:25:34 +0200 (CEST)","from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com\n\t(ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63])\n\tby relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n\tcipher=TLS_AES_256_GCM_SHA384) id us-mta-641-9Fy_KEdHOoiVZUhJwbqy1Q-1;\n\tThu, 16 Jul 2026 18:25:30 -0400","from mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n\t(mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com\n\t[10.30.177.111])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\tkey-exchange X25519 server-signature RSA-PSS (2048 bits)\n\tserver-digest SHA256) (No client certificate requested)\n\tby mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTPS id 265A81955EA7; Thu, 16 Jul 2026 22:25:28 +0000 (UTC)","from mzamazal-thinkpadp1gen7.tpbc.com (unknown [10.44.32.11])\n\tby mx-prod-int-08.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTP id F366B1800361; Thu, 16 Jul 2026 22:25:24 +0000 (UTC)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=redhat.com header.i=@redhat.com\n\theader.b=\"RpoMDrvr\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1784240733;\n\th=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n\tto:to:cc:cc:mime-version:mime-version:content-type:content-type:\n\tcontent-transfer-encoding:content-transfer-encoding:\n\tin-reply-to:in-reply-to:references:references;\n\tbh=XzYRQqs2k+fB7epVZ3D6QgHUY1JryaBpxta+uI3DXWE=;\n\tb=RpoMDrvr5vHZeE4Hn1fr0bisxLnl2uMjSCuVaBJb+B2Y/RVJ1Id/CCmjXkvoRC2QK2RpWh\n\tqeDHbjuSJsMDEgSQ5yjNxCZDtt3Yh3pKiyKezqsMIMUHCsLny8zt1GI2QwvGe5dtxaxiiW\n\t2LQdUZA3hSM9mHfN5hQDz9iuGyh9+LM=","X-MC-Unique":"9Fy_KEdHOoiVZUhJwbqy1Q-1","X-Mimecast-MFC-AGG-ID":"9Fy_KEdHOoiVZUhJwbqy1Q_1784240729","From":"Milan Zamazal ","To":"libcamera-devel@lists.libcamera.org","Cc":"Xander Pronk ,\n\tBryan O'Donoghue ,\n\tHans de Goede ,\n\tLaurent Pinchart ,\n\tBryan O'Donoghue ,\n\tRick ten Wolde ,\n\tMilan Zamazal ","Subject":"[RFC PATCH v8 1/6] libcamera: software_isp: egl: Add filter\n\tparameter to createTexture2D()","Date":"Fri, 17 Jul 2026 00:25:08 +0200","Message-ID":"<20260716222515.251464-2-mzamazal@redhat.com>","In-Reply-To":"<20260716222515.251464-1-mzamazal@redhat.com>","References":"<20260716222515.251464-1-mzamazal@redhat.com>","MIME-Version":"1.0","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.111","X-Mimecast-Spam-Score":"0","X-Mimecast-MFC-PROC-ID":"nE7-F04KsvoFn5DP42qvsG9yQ44-O08Mc1_wM20H7gE_1784240729","X-Mimecast-Originator":"redhat.com","Content-Transfer-Encoding":"8bit","content-type":"text/plain; charset=\"US-ASCII\"; x-default=true","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"From: Xander Pronk \n\nAdd `filter' parameter to createTexture2D() to allow overriding\nthe currently hardcoded GL_NEAREST value. This is needed for\ngrid-based lens shading interpolation, which is implemented in followup\npatches.\n\nReviewed-by: Bryan O'Donoghue \nCo-developed-by: Rick ten Wolde \nSigned-off-by: Rick ten Wolde \nSigned-off-by: Xander Pronk \nSigned-off-by: Milan Zamazal \n---\n include/libcamera/internal/egl.h | 2 +-\n src/libcamera/egl.cpp | 9 +++++----\n src/libcamera/software_isp/debayer_egl.cpp | 2 +-\n 3 files changed, 7 insertions(+), 6 deletions(-)","diff":"diff --git a/include/libcamera/internal/egl.h b/include/libcamera/internal/egl.h\nindex 523a62aa8..030c813a5 100644\n--- a/include/libcamera/internal/egl.h\n+++ b/include/libcamera/internal/egl.h\n@@ -107,7 +107,7 @@ public:\n \n \tint createInputDMABufTexture2D(eGLImage &eglImage, int fd);\n \tint createOutputDMABufTexture2D(eGLImage &eglImage, int fd);\n-\tvoid createTexture2D(eGLImage &eglImage, void *data);\n+\tvoid createTexture2D(eGLImage &eglImage, void *data, GLint filter);\n \n \tvoid pushEnv(std::vector &shaderEnv, const char *str);\n \tvoid makeCurrent();\ndiff --git a/src/libcamera/egl.cpp b/src/libcamera/egl.cpp\nindex b5a5dc60b..aeac5d313 100644\n--- a/src/libcamera/egl.cpp\n+++ b/src/libcamera/egl.cpp\n@@ -242,13 +242,14 @@ int eGL::createOutputDMABufTexture2D(eGLImage &eglImage, int fd)\n * \\brief Create a 2D texture from a memory buffer\n * \\param[in,out] eglImage EGL image to associate with the texture\n * \\param[in] data Pointer to pixel data, or nullptr for uninitialised texture\n+ * \\param[in] filter GL texture filter setting\n *\n * Creates a 2D texture from a CPU-accessible memory buffer. The texture\n- * is configured with nearest filtering and clamp-to-edge wrapping. This\n+ * is configured the specified filtering and clamp-to-edge wrapping. This\n * is useful for uploading static data like lookup tables or uniform color\n * matrices to the GPU.\n */\n-void eGL::createTexture2D(eGLImage &eglImage, void *data)\n+void eGL::createTexture2D(eGLImage &eglImage, void *data, GLint filter)\n {\n \tASSERT(tid_ == Thread::currentId());\n \n@@ -259,8 +260,8 @@ void eGL::createTexture2D(eGLImage &eglImage, void *data)\n \tglTexImage2D(GL_TEXTURE_2D, 0, eglImage.format_, eglImage.width_, eglImage.height_, 0, eglImage.format_, GL_UNSIGNED_BYTE, data);\n \n \t// Nearest filtering\n-\tglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);\n-\tglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);\n+\tglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);\n+\tglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);\n \n \t// Wrap to edge to avoid edge artifacts\n \tglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);\ndiff --git a/src/libcamera/software_isp/debayer_egl.cpp b/src/libcamera/software_isp/debayer_egl.cpp\nindex 56545816e..5f492318e 100644\n--- a/src/libcamera/software_isp/debayer_egl.cpp\n+++ b/src/libcamera/software_isp/debayer_egl.cpp\n@@ -527,7 +527,7 @@ int DebayerEGL::debayerGPU(FrameBuffer *input, FrameBuffer *output, const Debaye\n \t\t\tLOG(Debayer, Error) << \"mmap-ing buffer(s) failed\";\n \t\t\treturn -ENODEV;\n \t\t}\n-\t\tegl_.createTexture2D(*eglImageBayerIn_, inMapped->value().planes()[0].data());\n+\t\tegl_.createTexture2D(*eglImageBayerIn_, inMapped->value().planes()[0].data(), GL_NEAREST);\n \t}\n \n \t/* Generate the output render framebuffer as render to texture */\n","prefixes":["RFC","v8","1/6"]}