From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48445C433FE for ; Tue, 8 Dec 2020 12:03:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id A9A4423A9C for ; Tue, 8 Dec 2020 12:03:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A9A4423A9C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42434 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kmbiX-0006ll-96 for qemu-devel@archiver.kernel.org; Tue, 08 Dec 2020 07:03:41 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:49352) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kmbcv-0001Yg-Sd for qemu-devel@nongnu.org; Tue, 08 Dec 2020 06:57:53 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:35267) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1kmbcs-000554-KM for qemu-devel@nongnu.org; Tue, 08 Dec 2020 06:57:53 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607428670; 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=1C2QM1Xu65wcBQ76oYf5uh/7oLC1B5FQ0LON5pl4M74=; b=IpGJXKMDn37wJyTqeMA2sbMCNDGLUqID6xmKj9uqMLFu/rolpkF12d8TwMeV19edGzdmFO nsyY3d7ow+DRn0boIc2YP3w45pHzljoJ6JErmoeCBpNC7M4/tmnmr/GLGT1ejBkkIoPQMr 7OzX9oue9V3REYpXFl1gtwdbCp5b6bM= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-425-euV43QtjPHawvTPFwMocmg-1; Tue, 08 Dec 2020 06:57:45 -0500 X-MC-Unique: euV43QtjPHawvTPFwMocmg-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 84FFA107ACE4 for ; Tue, 8 Dec 2020 11:57:44 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-94.ams2.redhat.com [10.36.112.94]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4C3385D9DE; Tue, 8 Dec 2020 11:57:42 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 5BA9A9D9C; Tue, 8 Dec 2020 12:57:37 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PATCH v2 6/9] vnc: add alpha cursor support Date: Tue, 8 Dec 2020 12:57:34 +0100 Message-Id: <20201208115737.18581-7-kraxel@redhat.com> In-Reply-To: <20201208115737.18581-1-kraxel@redhat.com> References: <20201208115737.18581-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.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, DKIMWL_WL_HIGH=-0.001, 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_H3=0.001, RCVD_IN_MSPIKE_WL=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" There is a new vnc extension for cursors with an alpha channel. Use it if supported by the vnc client, prefer it over the "rich cursor" extension which supports only a bitmask for transparency. This is a visible improvement especially on modern desktops which actually use the alpha channel when defining cursors. https://github.com/rfbproto/rfbproto/blob/master/rfbproto.rst#cursor-with-alpha-pseudo-encoding Signed-off-by: Gerd Hoffmann Reviewed-by: Marc-André Lureau --- ui/vnc.h | 2 ++ ui/vnc.c | 21 ++++++++++++++++++--- 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/ui/vnc.h b/ui/vnc.h index 6f5006da3593..c8d3ad9ec496 100644 --- a/ui/vnc.h +++ b/ui/vnc.h @@ -448,6 +448,7 @@ enum VncFeatures { VNC_FEATURE_TIGHT, VNC_FEATURE_ZLIB, VNC_FEATURE_RICH_CURSOR, + VNC_FEATURE_ALPHA_CURSOR, VNC_FEATURE_TIGHT_PNG, VNC_FEATURE_ZRLE, VNC_FEATURE_ZYWRLE, @@ -461,6 +462,7 @@ enum VncFeatures { #define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT) #define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB) #define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR) +#define VNC_FEATURE_ALPHA_CURSOR_MASK (1 << VNC_FEATURE_ALPHA_CURSOR) #define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG) #define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE) #define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE) diff --git a/ui/vnc.c b/ui/vnc.c index 8c2771c1ce3b..247e80d8f5c8 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -937,6 +937,18 @@ static int vnc_cursor_define(VncState *vs) QEMUCursor *c = vs->vd->cursor; int isize; + if (vnc_has_feature(vs, VNC_FEATURE_ALPHA_CURSOR)) { + vnc_lock_output(vs); + vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); + vnc_write_u8(vs, 0); /* padding */ + vnc_write_u16(vs, 1); /* # of rects */ + vnc_framebuffer_update(vs, c->hot_x, c->hot_y, c->width, c->height, + VNC_ENCODING_ALPHA_CURSOR); + vnc_write_s32(vs, VNC_ENCODING_RAW); + vnc_write(vs, c->data, c->width * c->height * 4); + vnc_unlock_output(vs); + return 0; + } if (vnc_has_feature(vs, VNC_FEATURE_RICH_CURSOR)) { vnc_lock_output(vs); vnc_write_u8(vs, VNC_MSG_SERVER_FRAMEBUFFER_UPDATE); @@ -2102,9 +2114,9 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) break; case VNC_ENCODING_RICH_CURSOR: vs->features |= VNC_FEATURE_RICH_CURSOR_MASK; - if (vs->vd->cursor) { - vnc_cursor_define(vs); - } + break; + case VNC_ENCODING_ALPHA_CURSOR: + vs->features |= VNC_FEATURE_ALPHA_CURSOR_MASK; break; case VNC_ENCODING_EXT_KEY_EVENT: send_ext_key_event_ack(vs); @@ -2134,6 +2146,9 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) vnc_desktop_resize(vs); check_pointer_type_change(&vs->mouse_mode_notifier, NULL); vnc_led_state_change(vs); + if (vs->vd->cursor) { + vnc_cursor_define(vs); + } } static void set_pixel_conversion(VncState *vs) -- 2.27.0