From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1VRIk1-0000oX-Db for mharc-grub-devel@gnu.org; Wed, 02 Oct 2013 05:29:09 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44364) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VRIju-0000kG-Lj for grub-devel@gnu.org; Wed, 02 Oct 2013 05:29:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VRIjp-0004cT-8M for grub-devel@gnu.org; Wed, 02 Oct 2013 05:29:02 -0400 Received: from mail-ea0-x22e.google.com ([2a00:1450:4013:c01::22e]:54427) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VRIjp-0004cK-0l for grub-devel@gnu.org; Wed, 02 Oct 2013 05:28:57 -0400 Received: by mail-ea0-f174.google.com with SMTP id z15so251536ead.33 for ; Wed, 02 Oct 2013 02:28:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type; bh=cEU8fMqUyA107/WMBjJstgfb9+xRJTCYb6rU4jsu+rA=; b=xeX3kqc5jd/DoE9Tw3OomXyNEMIcNSr32c/lx8IsIXp8ZwECUimOUUfNiYi4NP3oFV tYFzDwlK7jVleQt7+HcxlqjAK3Id8LZz4PnjquIAIfLeYSnbdSsZ6/grLhzPsl+n3um8 FMJP7zkk+tIxmTbHkzh5ICqrW+9RY2yTBl72yqNj6LcKhT58+T+uYk+ZAO/dCj2C8UvA 3kjHgXVBxZYlcL7sQRn+1+aNHCOpdIpNHrWO2dHgwzip8iuKOrIhi/uB7qg0oSzxQ5Az Rgsdw3cyt/FHYVdaKoGvBVQHYpazTZfTRHycT+6bixOgfdXwsvg90CshrNt0/8sdKzIv DaGg== X-Received: by 10.15.94.201 with SMTP id bb49mr2158182eeb.23.1380706135824; Wed, 02 Oct 2013 02:28:55 -0700 (PDT) Received: from [192.168.42.25] (23-237.197-178.cust.bluewin.ch. [178.197.237.23]) by mx.google.com with ESMTPSA id m54sm1742813eex.2.1969.12.31.16.00.00 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 02 Oct 2013 02:28:55 -0700 (PDT) Message-ID: <524BE754.9090807@gmail.com> Date: Wed, 02 Oct 2013 11:28:52 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130821 Icedove/17.0.8 MIME-Version: 1.0 To: The development of GNU GRUB Subject: Re: Adam7 and narrow PNG References: <524B67D2.20107@gmail.com> In-Reply-To: X-Enigmail-Version: 1.5.1 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="----enig2WQXLDSBNBHDVDAMOFCFE" X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2a00:1450:4013:c01::22e X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Oct 2013 09:29:08 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) ------enig2WQXLDSBNBHDVDAMOFCFE Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 02.10.2013 08:57, Melki Christian (consultant) wrote: > Limited usefullness. I've used a lot of PNG's in GRUB lately and can't = think of a reason why I would use either. > Maybe paletted 8-bit (if-that=E2=80=99s what you meant?) to save space.= =2E 8-bit palette is an easy one. The tricky one is 4-/2-/1-bit palettes (16-/4-/2-color) since then PNG packs several pixels in a single byte. Usefulness of it to compress image is debatable since although it saves space by itself, it messes with filter and huffman. > but adam7? It's still going to be loaded as a bitmap. > If I had some web png's and was to lazy to pass them through a converte= r... The compatibility is the idea. Or if editor used by artist defaults to adam7 and doesn't have an option (at least not easily accessible one) to change this behaviour > That beeing said, the work is done and unless it adds rediculous ammoun= t of code size or execution time I'd be fine with the support. >=20 >> -----Original Message----- >> From: grub-devel-bounces+christian.melki=3Dsaabgroup.com@gnu.org >> [mailto:grub-devel-bounces+christian.melki=3Dsaabgroup.com@gnu.org] On= >> Behalf Of Vladimir 'f-coder/phcoder' Serbinenko >> Sent: den 2 oktober 2013 02:25 >> To: The development of GRUB 2 >> Subject: Adam7 and narrow PNG >> >> It was reported that GRUB doesn't support Adam7 and paletteed PNGs. >> Attached patch would implement both of them but combining them results= >> in quite complex code since PNG works on bytes even if bpp <=3D 4 but >> adam7 works on pixels. Does anyone have thoughts on adam7 and narrow >> PNG usefulness? > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel >=20 ------enig2WQXLDSBNBHDVDAMOFCFE Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iF4EAREKAAYFAlJL51QACgkQNak7dOguQgn6RgD/S+jU3heOct1oOvb2alBuHLuo pKbzeCyNCzfX1YqME+8BAIB5d/6m2ZJiW0HWB8AURqvatAHnjs4wLmSFqfBcuSmj =IN+D -----END PGP SIGNATURE----- ------enig2WQXLDSBNBHDVDAMOFCFE--