From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@freedesktop.org
Subject: [Bug 92236] [ColorTiling2D] R600 BARTS radeon: pipe_context->clear
with color tiling enabled doesn't immediately affect color buffer
Date: Fri, 02 Oct 2015 08:04:01 +0000
Message-ID:
Bug ID
92236
Summary
[ColorTiling2D] R600 BARTS radeon: pipe_context->clear with color tiling enabled doesn't immediately affect color buffer
Product
Mesa
Version
git
Hardware
x86 (IA32)
OS
Linux (All)
Status
NEW
Severity
normal
Priority
medium
Component
Drivers/Gallium/r600
Assignee
dri-devel@lists.freedesktop.org
Reporter
siro@das-labor.org
QA Contact
dri-devel@lists.freedesktop.org
There's an open Gallium nine bug: https://github.com/iXit/Mesa-3D/issues/138
It looks like pipe_context->clear called with PIPE_CLEAR_COLOR isn't applied
immediately to the buffer.
As nine mimics swap-chains, the buffer is reused after some frames resulting in
"delayed" presentation.
The problem doesn't exist with R600_DEBUG=notiling and it doesn't exists when
using pipe_context->clear_render_target instead.
Tested with mesa git: https://github.com/iXit/Mesa-3D/