From nobody Wed Apr 30 20:04:43 2025
Delivered-To: importer@patchew.org
Authentication-Results: mx.zohomail.com;
	dkim=pass  header.i=dmitry.osipenko@collabora.com;
	spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as
 permitted sender)
  smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org;
	arc=pass (i=1 dmarc=pass fromdomain=collabora.com);
	dmarc=pass(p=none dis=none)  header.from=collabora.com
ARC-Seal: i=2; a=rsa-sha256; t=1738538875; cv=pass;
	d=zohomail.com; s=zohoarc;
	b=Qe/6KdWm8bM8WDI0aVCExDjJXCpEQwWgKeCBbRhS9st3XHARhhpFVMhDcc0XFq6wO6IezKwtK4sEqYkZB6cjItw962IX1bh1dqBJcb2FJe3lrQVMKQvCDpfSBE4BpRIN7ecEu5XjJxtN7foaCRY8LtGQFwC2/gOI013BQ9BJ0KE=
ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com;
 s=zohoarc;
	t=1738538875;
 h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To;
	bh=NO6drNc6EhUr9JsILCiRvhp7UiZurefsWCl7+fo5B+I=;
	b=TabEsXoTXz/K3zj9Lg9RBc0DjRJq9HJDkXir+kxBWSFFSsf2qP16GpUGtDa/GMVsdN+WRBvCJSdb4RcxgM9ui0eYsxzpx3/iCiYLRiojiKLFtgKNj5rHhpoDhfJFirFpHueS3lVUWZpiysYt7iAQn6f9tICghxy2xpHIBwpAkfc=
ARC-Authentication-Results: i=2; mx.zohomail.com;
	dkim=pass  header.i=dmitry.osipenko@collabora.com;
	spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as
 permitted sender)
  smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org;
	arc=pass (i=1 dmarc=pass fromdomain=collabora.com);
	dmarc=pass header.from=<dmitry.osipenko@collabora.com> (p=none dis=none)
Return-Path: <qemu-devel-bounces+importer=patchew.org@nongnu.org>
Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by
 mx.zohomail.com
	with SMTPS id 1738538875078766.418272661255;
 Sun, 2 Feb 2025 15:27:55 -0800 (PST)
Received: from localhost ([::1] helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <qemu-devel-bounces@nongnu.org>)
	id 1tejMZ-0002cD-NU; Sun, 02 Feb 2025 18:26:51 -0500
Received: from eggs.gnu.org ([2001:470:142:3::10])
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <dmitry.osipenko@collabora.com>)
 id 1tejMX-0002aA-EP
 for qemu-devel@nongnu.org; Sun, 02 Feb 2025 18:26:49 -0500
Received: from sender4-pp-f112.zoho.com ([136.143.188.112])
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <dmitry.osipenko@collabora.com>)
 id 1tejMV-0003UV-UW
 for qemu-devel@nongnu.org; Sun, 02 Feb 2025 18:26:49 -0500
Received: by mx.zohomail.com with SMTPS id 1738538788614621.6185364768735;
 Sun, 2 Feb 2025 15:26:28 -0800 (PST)
ARC-Seal: i=1; a=rsa-sha256; t=1738538792; cv=none;
 d=zohomail.com; s=zohoarc;
 b=Vp8tb5cX9Lv9cwRKY0OU6lUetB2GITVl45rhtbT0lNQ/HF7xinYm3FwkaIShOy8HNYu1CzmzBE786c8+zbzhIfwfBwBO8+7T7z4lChvv/V0wWCyOzUNx+Tp57ZSpHK+dYJrVrEJxj9ol/ln0HDk8CJiBuHJqFjH/TZS0Ajo0xuk=
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com;
 s=zohoarc; t=1738538792;
 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;
 bh=NO6drNc6EhUr9JsILCiRvhp7UiZurefsWCl7+fo5B+I=;
 b=YjjWBbBcoLzmasGD1SKKs4dkfi6C7yns/Bg18MxoHpPIk4fBy2YJCtyWDNp/pIhdPrCf2QNf0bL8M9JwsozdF3L4LO2XNJMXKzl7A+kwnfQj0pcM4DwCh4k+oAbxeBCxlERKW4ec2hyzDPhQz2gFooiWd0KJKtDBCjHoqD+Uax4=
ARC-Authentication-Results: i=1; mx.zohomail.com;
 dkim=pass  header.i=collabora.com;
 spf=pass  smtp.mailfrom=dmitry.osipenko@collabora.com;
 dmarc=pass header.from=<dmitry.osipenko@collabora.com>
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1738538792;
 s=zohomail; d=collabora.com; i=dmitry.osipenko@collabora.com;
 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;
 bh=NO6drNc6EhUr9JsILCiRvhp7UiZurefsWCl7+fo5B+I=;
 b=KPFPmC0P4d9BVj48YWMrxclzFWcqxFDJILauoGm3eec3puC9SW6Ec/ptNCagFq0w
 OYAeNClNGZOjT2zfwAzlUcdN6kQJWIAtCUHQeLotK/Uphknse9oBUojKATb3qr0lbLU
 DN2CoWOIxExLnG8gbZkVW7Pughl7LeO2ru52iLkI=
From: Dmitry Osipenko <dmitry.osipenko@collabora.com>
To: Akihiko Odaki <akihiko.odaki@daynix.com>, Huang Rui <ray.huang@amd.com>,
 =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>,
 =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@linaro.org>,
 Gerd Hoffmann <kraxel@redhat.com>,
 =?UTF-8?q?Alex=20Benn=C3=A9e?= <alex.bennee@linaro.org>,
 Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>,
 "Michael S . Tsirkin" <mst@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>
Cc: Gert Wollny <gert.wollny@collabora.com>, qemu-devel@nongnu.org,
 Gurchetan Singh <gurchetansingh@chromium.org>, Alyssa Ross <hi@alyssa.is>,
 =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= <roger.pau@citrix.com>,
 Alex Deucher <alexander.deucher@amd.com>,
 Stefano Stabellini <stefano.stabellini@amd.com>,
 =?UTF-8?q?Christian=20K=C3=B6nig?= <christian.koenig@amd.com>,
 Xenia Ragiadakou <xenia.ragiadakou@amd.com>,
 Honglei Huang <honglei1.huang@amd.com>, Julia Zhang <julia.zhang@amd.com>,
 Chen Jiqian <Jiqian.Chen@amd.com>, Rob Clark <robdclark@gmail.com>,
 Yiwei Zhang <zzyiwei@chromium.org>, Sergio Lopez Pascual <slp@redhat.com>
Subject: [PATCH v7 01/10] ui/sdl2: Restore original context after new context
 creation
Date: Mon,  3 Feb 2025 02:21:27 +0300
Message-ID: <20250202232136.919342-2-dmitry.osipenko@collabora.com>
X-Mailer: git-send-email 2.47.1
In-Reply-To: <20250202232136.919342-1-dmitry.osipenko@collabora.com>
References: <20250202232136.919342-1-dmitry.osipenko@collabora.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
X-ZohoMailClient: External
Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17
 as permitted sender) client-ip=209.51.188.17;
 envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org;
 helo=lists.gnu.org;
Received-SPF: pass client-ip=136.143.188.112;
 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,
 DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,
 RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.01,
 RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,
 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-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
 <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <https://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
 <mailto:qemu-devel-request@nongnu.org?subject=subscribe>
Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org
Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org
X-ZohoMail-DKIM: pass (identity dmitry.osipenko@collabora.com)
X-ZM-MESSAGEID: 1738538876759019000

SDL API changes GL context to a newly created GL context, which differs
from other GL providers that don't switch context. Change SDL backend to
restore the original GL context. This allows Qemu's virtio-gpu to support
new virglrenderer async-fencing feature for Virgl contexts, otherwise
virglrenderer's vrend creates a fence-sync context on the Qemu's
main-loop thread that erroneously stays in-use by the main-loop after
creation, not allowing vrend's fence-sync thread switch to this new
context that belongs to it.

Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Alex Benn=C3=A9e <alex.bennee@linaro.org>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
---
 ui/sdl2-gl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ui/sdl2-gl.c b/ui/sdl2-gl.c
index e01d9ab0c7bf..b1fe96d6af22 100644
--- a/ui/sdl2-gl.c
+++ b/ui/sdl2-gl.c
@@ -168,6 +168,9 @@ QEMUGLContext sdl2_gl_create_context(DisplayGLCtx *dgc,
                             SDL_GL_CONTEXT_PROFILE_ES);
         ctx =3D SDL_GL_CreateContext(scon->real_window);
     }
+
+    SDL_GL_MakeCurrent(scon->real_window, scon->winctx);
+
     return (QEMUGLContext)ctx;
 }
=20
--=20
2.47.1