{"id":26724,"url":"https://patchwork.libcamera.org/api/patches/26724/?format=json","web_url":"https://patchwork.libcamera.org/patch/26724/","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":"<20260512123619.120068-2-mzamazal@redhat.com>","date":"2026-05-12T12:36:05","name":"[RFC,v5,01/10] libcamera: software_isp: egl: Add filter parameter to createTexture2D()","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"e16228efb49e97f040a7e3ec1c083809c11be0fc","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/26724/mbox/","series":[{"id":5936,"url":"https://patchwork.libcamera.org/api/series/5936/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5936","date":"2026-05-12T12:36:04","name":"LSC for SoftISP simple pipeline","version":5,"mbox":"https://patchwork.libcamera.org/series/5936/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/26724/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/26724/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 9176DBDB1C\n\tfor ;\n\tTue, 12 May 2026 12:36:41 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 4A3CA63025;\n\tTue, 12 May 2026 14:36:41 +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 0B07A63020\n\tfor ;\n\tTue, 12 May 2026 14:36:39 +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-61-geZz8zHxOeGeCx_acVtcUw-1;\n\tTue, 12 May 2026 08:36:35 -0400","from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com\n\t(mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com\n\t[10.30.177.17])\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 C4B06195608A; Tue, 12 May 2026 12:36:33 +0000 (UTC)","from mzamazal-thinkpadp1gen7.tpbc.com (unknown [10.44.50.44])\n\tby mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix)\n\twith ESMTP id BE7B71944B20; Tue, 12 May 2026 12:36:30 +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=\"W/EGYgkU\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n\ts=mimecast20190719; t=1778589399;\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=uWOyb2MOZwVpr4GK1ZgYUmk44uV3Q47RAq6rwm3svaU=;\n\tb=W/EGYgkUJcXgMHU/x4Dzru29uNp5yjJWo/WQ1ilqnNQUqjSi9kDyQsbEXDowf9greBG2nT\n\tUVZDfUPd0og6Qy3LNunfN1A9JL0KX+j5E/vO+LJIc5VliSLBwYjEUGz0eW/3h0Sd02bHv/\n\tjAK8F9uQZCM6qOwxeVIVxSIfbJUdUPY=","X-MC-Unique":"geZz8zHxOeGeCx_acVtcUw-1","X-Mimecast-MFC-AGG-ID":"geZz8zHxOeGeCx_acVtcUw_1778589394","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 v5 01/10] libcamera: software_isp: egl: Add filter\n\tparameter to createTexture2D()","Date":"Tue, 12 May 2026 14:36:05 +0200","Message-ID":"<20260512123619.120068-2-mzamazal@redhat.com>","In-Reply-To":"<20260512123619.120068-1-mzamazal@redhat.com>","References":"<20260512123619.120068-1-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-MFC-PROC-ID":"mcDVxL2RC80xgCMmIYZuianYxvHJWRNsl6Bh0rzTlMk_1778589394","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 | 3 ++-\n src/libcamera/egl.cpp | 10 ++++++----\n src/libcamera/software_isp/debayer_egl.cpp | 4 +++-\n 3 files changed, 11 insertions(+), 6 deletions(-)","diff":"diff --git a/include/libcamera/internal/egl.h b/include/libcamera/internal/egl.h\nindex 0ad2320b1..6402dd5c7 100644\n--- a/include/libcamera/internal/egl.h\n+++ b/include/libcamera/internal/egl.h\n@@ -103,7 +103,8 @@ public:\n \n \tint createInputDMABufTexture2D(eGLImage &eglImage, int fd);\n \tint createOutputDMABufTexture2D(eGLImage &eglImage, int fd);\n-\tvoid createTexture2D(eGLImage &eglImage, GLint format, uint32_t width, uint32_t height, void *data);\n+\tvoid createTexture2D(eGLImage &eglImage, GLint format, uint32_t width, uint32_t height,\n+\t\t\t const 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 357918711..80d71451f 100644\n--- a/src/libcamera/egl.cpp\n+++ b/src/libcamera/egl.cpp\n@@ -211,13 +211,15 @@ int eGL::createOutputDMABufTexture2D(eGLImage &eglImage, int fd)\n * \\param[in] width Texture width in pixels\n * \\param[in] height Texture height in pixels\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, GLint format, uint32_t width, uint32_t height, void *data)\n+void eGL::createTexture2D(eGLImage &eglImage, GLint format, uint32_t width, uint32_t height,\n+\t\t\t const void *data, GLint filter)\n {\n \tASSERT(tid_ == Thread::currentId());\n \n@@ -228,8 +230,8 @@ void eGL::createTexture2D(eGLImage &eglImage, GLint format, uint32_t width, uint\n \tglTexImage2D(GL_TEXTURE_2D, 0, format, width, height, 0, 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 eae4c57f4..866592547 100644\n--- a/src/libcamera/software_isp/debayer_egl.cpp\n+++ b/src/libcamera/software_isp/debayer_egl.cpp\n@@ -506,7 +506,9 @@ int DebayerEGL::debayerGPU(MappedFrameBuffer &in, int out_fd, const DebayerParam\n \tegl_.makeCurrent();\n \n \t/* Create a standard texture input */\n-\tegl_.createTexture2D(*eglImageBayerIn_, glFormat_, inputConfig_.stride / bytesPerPixel_, height_, in.planes()[0].data());\n+\tegl_.createTexture2D(*eglImageBayerIn_, glFormat_,\n+\t\t\t inputConfig_.stride / bytesPerPixel_, height_,\n+\t\t\t in.planes()[0].data(), GL_NEAREST);\n \n \t/* Generate the output render framebuffer as render to texture */\n \tegl_.createOutputDMABufTexture2D(*eglImageBayerOut_, out_fd);\n","prefixes":["RFC","v5","01/10"]}