From nobody Tue Nov 4 16:04:47 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1503923817052624.5960779172686; Mon, 28 Aug 2017 05:36:57 -0700 (PDT) Received: from localhost ([::1]:39673 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmJHj-0006ZM-Tv for importer@patchew.org; Mon, 28 Aug 2017 08:36:55 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42619) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmJGA-0005gu-Cf for qemu-devel@nongnu.org; Mon, 28 Aug 2017 08:35:19 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dmJG9-0007j7-Jb for qemu-devel@nongnu.org; Mon, 28 Aug 2017 08:35:18 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55452) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dmJG9-0007ig-ED for qemu-devel@nongnu.org; Mon, 28 Aug 2017 08:35:17 -0400 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 mx1.redhat.com (Postfix) with ESMTPS id 677AC769E0; Mon, 28 Aug 2017 12:35:16 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-116-70.ams2.redhat.com [10.36.116.70]) by smtp.corp.redhat.com (Postfix) with ESMTP id 6039481884; Mon, 28 Aug 2017 12:35:04 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 99670204A4; Mon, 28 Aug 2017 14:35:01 +0200 (CEST) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 677AC769E0 Authentication-Results: ext-mx03.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx03.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=kraxel@redhat.com From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Mon, 28 Aug 2017 14:35:00 +0200 Message-Id: <20170828123501.22317-3-kraxel@redhat.com> In-Reply-To: <20170828123501.22317-1-kraxel@redhat.com> References: <20170828123501.22317-1-kraxel@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Mon, 28 Aug 2017 12:35:16 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 2/3] qxl: add support for chunked cursors. X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Ren=C3=A9=20Rebe?= , Gerd Hoffmann Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Gerd Hoffmann --- hw/display/qxl-render.c | 33 ++++++++++++++++++++++++++------- 1 file changed, 26 insertions(+), 7 deletions(-) diff --git a/hw/display/qxl-render.c b/hw/display/qxl-render.c index e1b3f05ecb..b2c98f90c0 100644 --- a/hw/display/qxl-render.c +++ b/hw/display/qxl-render.c @@ -204,7 +204,30 @@ void qxl_render_update_area_done(PCIQXLDevice *qxl, QX= LCookie *cookie) g_free(cookie); } =20 -static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor) +static void qxl_unpack_chunks(void *dest, size_t size, PCIQXLDevice *qxl, + QXLDataChunk *chunk, uint32_t group_id) +{ + uint32_t max_chunks =3D 32; + size_t offset =3D 0; + size_t bytes; + + for (;;) { + bytes =3D MIN(size - offset, chunk->data_size); + memcpy(dest + offset, chunk->data, bytes); + offset +=3D bytes; + if (offset =3D=3D size) + return; + chunk =3D qxl_phys2virt(qxl, chunk->next_chunk, group_id); + if (!chunk) + return; + max_chunks--; + if (max_chunks =3D=3D 0) + return; + } +} + +static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCursor *cursor, + uint32_t group_id) { QEMUCursor *c; size_t size; @@ -215,7 +238,7 @@ static QEMUCursor *qxl_cursor(PCIQXLDevice *qxl, QXLCur= sor *cursor) switch (cursor->header.type) { case SPICE_CURSOR_TYPE_ALPHA: size =3D sizeof(uint32_t) * cursor->header.width * cursor->header.= height; - memcpy(c->data, cursor->chunk.data, size); + qxl_unpack_chunks(c->data, size, qxl, &cursor->chunk, group_id); if (qxl->debug > 2) { cursor_print_ascii_art(c, "qxl/alpha"); } @@ -259,11 +282,7 @@ int qxl_render_cursor(PCIQXLDevice *qxl, QXLCommandExt= *ext) if (!cursor) { return 1; } - if (cursor->chunk.data_size !=3D cursor->data_size) { - fprintf(stderr, "%s: multiple chunks\n", __FUNCTION__); - return 1; - } - c =3D qxl_cursor(qxl, cursor); + c =3D qxl_cursor(qxl, cursor, ext->group_id); if (c =3D=3D NULL) { c =3D cursor_builtin_left_ptr(); } --=20 2.9.3