From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 97305] Wrong values returned by GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT & GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT randomly breaks stuff Date: Thu, 11 Aug 2016 22:39:55 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1745383321==" Return-path: Received: from culpepper.freedesktop.org (culpepper.freedesktop.org [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 2360C6EA13 for ; Thu, 11 Aug 2016 22:39:55 +0000 (UTC) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1745383321== Content-Type: multipart/alternative; boundary="14709551951.87E1ea.8019"; charset="UTF-8" --14709551951.87E1ea.8019 Date: Thu, 11 Aug 2016 22:39:55 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated https://bugs.freedesktop.org/show_bug.cgi?id=3D97305 --- Comment #9 from Ilia Mirkin --- (In reply to Marek Ol=C5=A1=C3=A1k from comment #5) > Pre-GCN cards require an alignment of 256 bytes for uniform buffers. GCN > cards only require 4 byte alignment there. >=20 > All other buffer binding points require 1, 2, or 4 bytes depending on the > texel size. It's really min(texel_size, 4). That means that you have to return max(texel_size) for the GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT. You only get one cap, and a texture buf= fer can be any offset. --=20 You are receiving this mail because: You are the assignee for the bug.= --14709551951.87E1ea.8019 Date: Thu, 11 Aug 2016 22:39:55 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://bugs.freedesktop.org/ Auto-Submitted: auto-generated

Comment= # 9 on bug 97305<= /a> from Ilia Mirkin 
(In reply to Marek Ol=C5=A1=C3=A1k from comment #5)
> Pre-GCN cards require an alignment of 256 bytes =
for uniform buffers. GCN
> cards only require 4 byte alignment there.
>=20
> All other buffer binding points require 1, 2, or 4 bytes depending on =
the
> texel size. It's really min(texel_size, 4).

That means that you have to return max(texel_size) for the
GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT. You only get one cap, and a texture buf=
fer
can be any offset.

You are receiving this mail because:
  • You are the assignee for the bug.
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