From patchwork Mon Aug 17 12:00:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= X-Patchwork-Id: 276342 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=-9.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 55C46C433E1 for ; Mon, 17 Aug 2020 12:02:11 +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 24B092067C for ; Mon, 17 Aug 2020 12:02:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ALC3OvFa" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 24B092067C 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]:60972 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k7dq6-0006Gu-Ba for qemu-devel@archiver.kernel.org; Mon, 17 Aug 2020 08:02:10 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60608) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k7dpC-000575-FB for qemu-devel@nongnu.org; Mon, 17 Aug 2020 08:01:14 -0400 Received: from us-smtp-1.mimecast.com ([207.211.31.81]:42473 helo=us-smtp-delivery-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1k7dpA-0003f9-Bk for qemu-devel@nongnu.org; Mon, 17 Aug 2020 08:01:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1597665671; 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=/SGi55q2jwB6TI3P6SfjHR5zRUnfzg+rtb4hqKPtTco=; b=ALC3OvFacbw5A4JOXeGoAwPFWwEo4YHIZ81xyvTCHwD7QQXehiOpniVMkr9HtRPcIU06cM kJZXHYlSjif2EXeUqHhzw6LjW5uINKf4p0JuQKPmg61t4uRv+joa1FJ2xaYgu/wl3xOtaF AdaMrHIDA/BKbU3KDOKGgJ+fPdHmZ84= 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-281-eGBrfme3OsWr-sn8pEWbyQ-1; Mon, 17 Aug 2020 08:01:08 -0400 X-MC-Unique: eGBrfme3OsWr-sn8pEWbyQ-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 64014CF983 for ; Mon, 17 Aug 2020 12:01:07 +0000 (UTC) Received: from localhost (unknown [10.36.110.38]) by smtp.corp.redhat.com (Postfix) with ESMTP id 658385D9D2; Mon, 17 Aug 2020 12:01:06 +0000 (UTC) From: marcandre.lureau@redhat.com To: qemu-devel@nongnu.org Subject: [PATCH 1/4] edid: use physical dimensions if available Date: Mon, 17 Aug 2020 16:00:53 +0400 Message-Id: <20200817120056.56751-2-marcandre.lureau@redhat.com> In-Reply-To: <20200817120056.56751-1-marcandre.lureau@redhat.com> References: <20200817120056.56751-1-marcandre.lureau@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=marcandre.lureau@redhat.com X-Mimecast-Spam-Score: 0.001 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=207.211.31.81; envelope-from=marcandre.lureau@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/17 03:34:42 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -40 X-Spam_score: -4.1 X-Spam_bar: ---- X-Spam_report: (-4.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, 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=-1, 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_Lureau?= , Gerd Hoffmann , "Michael S. Tsirkin" Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Marc-André Lureau Add width_mm/height_mm to qemu_edid_info, and use it if it is set (non-zero) to generate the EDID. Signed-off-by: Marc-André Lureau --- hw/display/edid-generate.c | 21 +++++++++++++-------- include/hw/display/edid.h | 2 ++ 2 files changed, 15 insertions(+), 8 deletions(-) diff --git a/hw/display/edid-generate.c b/hw/display/edid-generate.c index e58472fde5..14cfb94447 100644 --- a/hw/display/edid-generate.c +++ b/hw/display/edid-generate.c @@ -205,12 +205,8 @@ static void edid_desc_dummy(uint8_t *desc) static void edid_desc_timing(uint8_t *desc, uint32_t xres, uint32_t yres, - uint32_t dpi) + uint32_t xmm, uint32_t ymm) { - /* physical display size */ - uint32_t xmm = xres * dpi / 254; - uint32_t ymm = yres * dpi / 254; - /* pull some realistic looking timings out of thin air */ uint32_t xfront = xres * 25 / 100; uint32_t xsync = xres * 3 / 100; @@ -296,6 +292,7 @@ void qemu_edid_generate(uint8_t *edid, size_t size, uint32_t desc = 54; uint8_t *xtra3 = NULL; uint8_t *dta = NULL; + uint32_t width_mm, height_mm; /* =============== set defaults =============== */ @@ -314,6 +311,13 @@ void qemu_edid_generate(uint8_t *edid, size_t size, if (!info->prefy) { info->prefy = 768; } + if (info->width_mm && info->height_mm) { + width_mm = info->width_mm; + height_mm = info->height_mm; + } else { + width_mm = info->prefx * info->dpi / 254; + height_mm = info->prefy * info->dpi / 254; + } /* =============== extensions =============== */ @@ -360,8 +364,8 @@ void qemu_edid_generate(uint8_t *edid, size_t size, edid[20] = 0xa5; /* screen size: undefined */ - edid[21] = info->prefx * 254 / 100 / info->dpi; - edid[22] = info->prefy * 254 / 100 / info->dpi; + edid[21] = width_mm / 10; + edid[22] = height_mm / 10; /* display gamma: 2.2 */ edid[23] = 220 - 100; @@ -387,7 +391,8 @@ void qemu_edid_generate(uint8_t *edid, size_t size, /* =============== descriptor blocks =============== */ - edid_desc_timing(edid + desc, info->prefx, info->prefy, info->dpi); + edid_desc_timing(edid + desc, info->prefx, info->prefy, + width_mm, height_mm); desc += 18; edid_desc_ranges(edid + desc); diff --git a/include/hw/display/edid.h b/include/hw/display/edid.h index 5b1de57f24..f98b49a944 100644 --- a/include/hw/display/edid.h +++ b/include/hw/display/edid.h @@ -6,6 +6,8 @@ typedef struct qemu_edid_info { const char *name; const char *serial; uint32_t dpi; + uint16_t width_mm; + uint16_t height_mm; uint32_t prefx; uint32_t prefy; uint32_t maxx;