From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomi Valkeinen Subject: Re: [PATCH v4 3/3] OMAPDSS: HDMI: Sysfs support to configure quantization Date: Fri, 09 Mar 2012 14:26:52 +0200 Message-ID: <1331296012.1927.60.camel@deskari> References: <1328682261-22493-1-git-send-email-mythripk@ti.com> <1328682261-22493-2-git-send-email-mythripk@ti.com> <1328682261-22493-3-git-send-email-mythripk@ti.com> <1329222123.1845.82.camel@deskari> Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-krtQFRyXXZtiAee8xDoP" Return-path: Received: from na3sys009aog132.obsmtp.com ([74.125.149.250]:47386 "EHLO psmtp.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1755042Ab2CIM04 (ORCPT ); Fri, 9 Mar 2012 07:26:56 -0500 Received: by mail-lpp01m010-f42.google.com with SMTP id l5so1589140lah.15 for ; Fri, 09 Mar 2012 04:26:55 -0800 (PST) In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "K, Mythri P" Cc: linux-omap@vger.kernel.org, Archit Taneja --=-krtQFRyXXZtiAee8xDoP Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Fri, 2012-03-09 at 16:17 +0530, K, Mythri P wrote: > > I also only now realized that we have full/limited range setting in > > video overlay's ATTRIBUTEs also. And it seems that we currently set it > > always to 0, i.e. limited range. I wonder if this causes color > > degradation in case the HDMI/DP output also sets limited range, and thu= s > > the color range gets scaled down twice... > > > yes there is a limited/full range bit in dispc for color conversion, > did a quick check using analyzer it doesn't impact the HDMI color > range, so can confirm there is no degradation. Did you try what happens if you set the range to full in DISPC? Because it should affect HDMI also, so I don't quite understand how there could be no degradation if both DISPC and HDMI do the range limiting. Tomi --=-krtQFRyXXZtiAee8xDoP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJPWfcMAAoJEPo9qoy8lh71HGMQAJ17rkYNGoyOpTlAaRa2w9DR BANsKDEUfL/+9Y7FHE3j37VMtCBvG/M26vrIDtuen75NdV10gVkHQ8fvGQl/dJbO he4ZvB4JFVVrNhNt53KhLvCHDE6MYq3v6/6iUeqsRV9o0pfcPIGTTuoZCM/Kzy3u dh+AjM8qHCRmXsQwr3YKkwnHzQNiF7QmBWn7s8oV6sdRrFW9MBcqkf5HbiFnnor2 d8cW704Z3iA0d82IzPeeZi9LrhaDI9y3/3H7j6+04r0xGLIgm0NlxyK7i64kXP5m PvFRq40m0+ZPqrc2eokoHOdVkMqn8KntJcQtSHhcM/Dnm4nzqxJBOFAosxGAbfIx lkgiIzzXQHYJQ085BxsnDCbBrnQNJWAtFd2d5zB+XKZMcAR4cywZW8bcxtD9M1fN trOvFkoO9j4GvktrDX0ewn8QgsWxj3fUf37Z8boVF6rz2kEneK7jcN5h6rrbP6fz HZ5sUFSmcd3niAY4k78QDK7m1b9YbYri8yBoCiLzMcaOlIdkjNxQtImTNCvC3KPK ZWb6Fc4zl3/hjfYXmBcPkvWji0N7Eh1P1+6SPDI8Vg7TW+mr+GBSWYzfo55qzPil gZ0rvYMzEJ70s1X+LuD9PxNvtIaa9oALN6EW/NmRdXgQ1Akh3wNQosCL+t0kQ1NW QtiG6xW1i9N+ARgn73GC =qe+t -----END PGP SIGNATURE----- --=-krtQFRyXXZtiAee8xDoP--