{"id":2197441,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2197441/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260217214928.2970885-2-dmitry.osipenko@collabora.com>","date":"2026-02-17T21:49:10","name":"[v18,01/19] ui/sdl2: Restore original context after new context creation","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"e5066cea888f498309cc0d9aaeb1b09dece2d042","submitter":{"id":83453,"url":"http://patchwork.ozlabs.org/api/1.0/people/83453/?format=json","name":"Dmitry Osipenko","email":"dmitry.osipenko@collabora.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260217214928.2970885-2-dmitry.osipenko@collabora.com/mbox/","series":[{"id":492488,"url":"http://patchwork.ozlabs.org/api/1.0/series/492488/?format=json","date":"2026-02-17T21:49:09","name":"Support virtio-gpu DRM native context and MAP_FIXED API","version":18,"mbox":"http://patchwork.ozlabs.org/series/492488/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2197441/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=collabora.com header.i=dmitry.osipenko@collabora.com\n header.a=rsa-sha256 header.s=zohomail header.b=ThNp1EaQ;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fFtf555m3z1xwC\n\tfor ; Wed, 18 Feb 2026 08:52:13 +1100 (AEDT)","from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from )\n\tid 1vsSz6-0008A9-V8; Tue, 17 Feb 2026 16:51:57 -0500","from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from )\n id 1vsSz2-000889-Cx\n for qemu-devel@nongnu.org; Tue, 17 Feb 2026 16:51:52 -0500","from sender4-pp-f112.zoho.com ([136.143.188.112])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from )\n id 1vsSz0-0001Lm-Ox\n for qemu-devel@nongnu.org; Tue, 17 Feb 2026 16:51:52 -0500","by mx.zohomail.com with SMTPS id 1771365082616470.515655327892;\n Tue, 17 Feb 2026 13:51:22 -0800 (PST)"],"ARC-Seal":"i=1; a=rsa-sha256; t=1771365084; cv=none;\n d=zohomail.com; s=zohoarc;\n b=bHBt250SyGFgSOplbmPnGYv1L6aDpgVW5aibVhQNv9Uk2eFIp/68jG+7RGqPtZEDrY4N4Aq3p9OfAy4A7wBF/VJczM1VIc4N92TsKh6mLNb3kzyvq4nkrLKLPCsqqI8bGkN0utsLaGhumkPWbcIZiVFzMOF7uw++Ow6Gfk269To=","ARC-Message-Signature":"i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com;\n s=zohoarc; t=1771365084;\n h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To;\n bh=26KDt+l8nTHjv9XZIrWP4uirI4EqmdpJAiWfCgmym7A=;\n b=kwpfMOQbTskBa2chSPgXvZLiW00EtpPn5noxXOsqaSeiignrcdmF8ym3mQE+dA9b68bPcccEdp+f1sW79q9/2rWDmgCKL9Wg08S+FR8145hb5bXdQ1eRSaG2T60nv/RQgk8UhdAwPqgpPTwN349ait1MGw4WvY4nEJZ3FfQD8js=","ARC-Authentication-Results":"i=1; mx.zohomail.com;\n dkim=pass header.i=collabora.com;\n spf=pass smtp.mailfrom=dmitry.osipenko@collabora.com;\n dmarc=pass header.from=","DKIM-Signature":"v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1771365084;\n s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com;\n h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To;\n bh=26KDt+l8nTHjv9XZIrWP4uirI4EqmdpJAiWfCgmym7A=;\n b=ThNp1EaQRO0rSw8Po7Ydaz/mdbQPI6sMtGmlM4cwZQ7ddgdRBPNeo47iTaTSKxtV\n cxrzEUSdVK3n+nsqywSO8Ya6hsl/Ba82NJPwxoCkG4T8HlIFBYd22eslE1Kc1Vpro0x\n wZnLsYIt/z+E33HklkEx2AH08pH/dEtjmt7Bvb8I=","From":"Dmitry Osipenko ","To":"Akihiko Odaki ,\n Huang Rui ,\n =?utf-8?q?Marc-Andr=C3=A9_Lureau?= ,\n\t=?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= ,\n Gerd Hoffmann ,\n =?utf-8?q?Alex_Benn=C3=A9e?= ,\n Pierre-Eric Pelloux-Prayer ,\n \"Michael S . Tsirkin\" , Paolo Bonzini ,\n Yiwei Zhang , Sergio Lopez Pascual ","Cc":"Gert Wollny , qemu-devel@nongnu.org,\n Gurchetan Singh , Alyssa Ross ,\n\t=?utf-8?q?Roger_Pau_Monn=C3=A9?= ,\n Alex Deucher ,\n Stefano Stabellini , =?utf-8?q?Christian_K?=\n\t=?utf-8?q?=C3=B6nig?= ,\n Xenia Ragiadakou ,\n Honglei Huang , Julia Zhang ,\n Chen Jiqian , Rob Clark ,\n Robert Beckett ","Subject":"[PATCH v18 01/19] ui/sdl2: Restore original context after new context\n creation","Date":"Wed, 18 Feb 2026 00:49:10 +0300","Message-ID":"<20260217214928.2970885-2-dmitry.osipenko@collabora.com>","X-Mailer":"git-send-email 2.52.0","In-Reply-To":"<20260217214928.2970885-1-dmitry.osipenko@collabora.com>","References":"<20260217214928.2970885-1-dmitry.osipenko@collabora.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","X-ZohoMailClient":"External","Received-SPF":"pass client-ip=136.143.188.112;\n envelope-from=dmitry.osipenko@collabora.com; helo=sender4-pp-f112.zoho.com","X-Spam_score_int":"-20","X-Spam_score":"-2.1","X-Spam_bar":"--","X-Spam_report":"(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"SDL API changes GL context to a newly created GL context, which differs\nfrom other GL providers that don't switch context. Change SDL backend to\nrestore the original GL context. This allows Qemu's virtio-gpu to support\nnew virglrenderer async-fencing feature for Virgl contexts, otherwise\nvirglrenderer's vrend creates a fence-sync context on the Qemu's\nmain-loop thread that erroneously stays in-use by the main-loop after\ncreation, not allowing vrend's fence-sync thread switch to this new\ncontext that belongs to it.\n\nReviewed-by: Akihiko Odaki \nAcked-by: Michael S. Tsirkin \nTested-by: Alex Bennée \nAcked-by: Pierre-Eric Pelloux-Prayer \nReviewed-by: Yiwei Zhang \nSigned-off-by: Dmitry Osipenko \n---\n ui/sdl2-gl.c | 3 +++\n 1 file changed, 3 insertions(+)","diff":"diff --git a/ui/sdl2-gl.c b/ui/sdl2-gl.c\nindex 3be17d1079af..ea2301305d3e 100644\n--- a/ui/sdl2-gl.c\n+++ b/ui/sdl2-gl.c\n@@ -168,6 +168,9 @@ QEMUGLContext sdl2_gl_create_context(DisplayGLCtx *dgc,\n SDL_GL_CONTEXT_PROFILE_ES);\n ctx = SDL_GL_CreateContext(scon->real_window);\n }\n+\n+ SDL_GL_MakeCurrent(scon->real_window, scon->winctx);\n+\n return (QEMUGLContext)ctx;\n }\n \n","prefixes":["v18","01/19"]}