From patchwork Fri Mar 4 14:21:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 12769277 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3B2A1C433FE for ; Fri, 4 Mar 2022 15:08:22 +0000 (UTC) Received: from localhost ([::1]:51896 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nQ9XZ-0004ZV-Cl for qemu-devel@archiver.kernel.org; Fri, 04 Mar 2022 10:08:21 -0500 Received: from eggs.gnu.org ([209.51.188.92]:39374) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQ8rI-0005Jg-7z for qemu-devel@nongnu.org; Fri, 04 Mar 2022 09:24:40 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:26915) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nQ8rF-0002fZ-Ck for qemu-devel@nongnu.org; Fri, 04 Mar 2022 09:24:38 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1646403876; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=98/liyrwCEk/qn6JyeC5cc/WbBQeLoFeN+V78zlxylc=; b=MQgizRgmZEKVV1+TuH1TleqfpiuHn7C42E7rn1Xr1nF8+kBa70ftvy5ozaRdKukPWY785l 69tHQ40Cv+J08Tt09hsZLB+UXf9KzkA84uEQofv6Bk4baRXqw/Yb8qAjU+VjIlwULI6QOv tV+cuy9UD3SJdXO0OJXQvxwJDQe/wa0= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-551-z3FCljN6OD-x5FKODCbu5Q-1; Fri, 04 Mar 2022 09:24:33 -0500 X-MC-Unique: z3FCljN6OD-x5FKODCbu5Q-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 085D31854E26; Fri, 4 Mar 2022 14:24:32 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.99]) by smtp.corp.redhat.com (Postfix) with ESMTPS id B8417866F5; Fri, 4 Mar 2022 14:24:31 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 56CDD18009BB; Fri, 4 Mar 2022 15:21:25 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 28/35] ui/console: fix crash when using gl context with non-gl listeners Date: Fri, 4 Mar 2022 15:21:16 +0100 Message-Id: <20220304142123.956171-29-kraxel@redhat.com> In-Reply-To: <20220304142123.956171-1-kraxel@redhat.com> References: <20220304142123.956171-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.129.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Habkost , Peter Maydell , =?utf-8?q?Daniel_P=2E_Berrang?= =?utf-8?q?=C3=A9?= , Akihiko Odaki , "Michael S. Tsirkin" , Thomas Huth , Richard Henderson , Christian Schoenebeck , =?utf-8?q?Philippe_Mathieu-?= =?utf-8?q?Daud=C3=A9?= , Gerd Hoffmann , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Marc-André Lureau The commit 7cc712e98 ("ui: dispatch GL events to all listener") mechanically replaced the dpy_gl calls with a dispatch loop, using the same pre-conditions. However, it didn't take into account that all listeners do not have to implement the GL callbacks. Add the missing pre-conditions before calling the callbacks. Fix crash when running a GL-enabled VM with "-device virtio-gpu-gl-pci -display egl-headless -vnc :0". Fixes: 7cc712e98 ("ui: dispatch GL events to all listener") Reported-by: Akihiko Odaki Signed-off-by: Marc-André Lureau Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20220214201337.1814787-2-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann --- ui/console.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/ui/console.c b/ui/console.c index 40eebb6d2cc2..79a01afd1ea7 100644 --- a/ui/console.c +++ b/ui/console.c @@ -1860,7 +1860,9 @@ void dpy_gl_scanout_disable(QemuConsole *con) con->scanout.kind = SCANOUT_NONE; } QLIST_FOREACH(dcl, &s->listeners, next) { - dcl->ops->dpy_gl_scanout_disable(dcl); + if (dcl->ops->dpy_gl_scanout_disable) { + dcl->ops->dpy_gl_scanout_disable(dcl); + } } } @@ -1881,10 +1883,12 @@ void dpy_gl_scanout_texture(QemuConsole *con, x, y, width, height }; QLIST_FOREACH(dcl, &s->listeners, next) { - dcl->ops->dpy_gl_scanout_texture(dcl, backing_id, - backing_y_0_top, - backing_width, backing_height, - x, y, width, height); + if (dcl->ops->dpy_gl_scanout_texture) { + dcl->ops->dpy_gl_scanout_texture(dcl, backing_id, + backing_y_0_top, + backing_width, backing_height, + x, y, width, height); + } } } @@ -1897,7 +1901,9 @@ void dpy_gl_scanout_dmabuf(QemuConsole *con, con->scanout.kind = SCANOUT_DMABUF; con->scanout.dmabuf = dmabuf; QLIST_FOREACH(dcl, &s->listeners, next) { - dcl->ops->dpy_gl_scanout_dmabuf(dcl, dmabuf); + if (dcl->ops->dpy_gl_scanout_dmabuf) { + dcl->ops->dpy_gl_scanout_dmabuf(dcl, dmabuf); + } } } @@ -1951,7 +1957,9 @@ void dpy_gl_update(QemuConsole *con, graphic_hw_gl_block(con, true); QLIST_FOREACH(dcl, &s->listeners, next) { - dcl->ops->dpy_gl_update(dcl, x, y, w, h); + if (dcl->ops->dpy_gl_update) { + dcl->ops->dpy_gl_update(dcl, x, y, w, h); + } } graphic_hw_gl_block(con, false); }