Until now, the stencil buffer was allocated as a Y tiled buffer, because
in several locations the PRM states that it is. However, it is actually
W tiled. From the PRM, 2011 Sandy Bridge, Volume 1, Part 2, Section
4.5.2.1 W-Major Format:
W-Major Tile Format is used for separate stencil.
The GTT
On Mon, 18 Jul 2011 00:55:03 -0700, Chad Versace wrote:
> diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c
> b/src/mesa/drivers/dri/intel/intel_fbo.c
> index 1669af2..507cc33 100644
> --- a/src/mesa/drivers/dri/intel/intel_fbo.c
> +++ b/src/mesa/drivers/dri/intel/intel_fbo.c
> @@ -173,6 +173,9
Am Montag, den 18.07.2011, 00:55 -0700 schrieb Chad Versace:
[…]
> diff --git a/src/mesa/drivers/dri/intel/intel_span.c
> b/src/mesa/drivers/dri/intel/intel_span.c
> index 153803f..d306432 100644
> --- a/src/mesa/drivers/dri/intel/intel_span.c
> +++ b/src/mesa/drivers/dri/intel/intel_span.c
> @@
Until now, the stencil buffer was allocated as a Y tiled buffer, because
in several locations the PRM states that it is. However, it is actually
W tiled. From the PRM, 2011 Sandy Bridge, Volume 1, Part 2, Section
4.5.2.1 W-Major Format:
W-Major Tile Format is used for separate stencil.
The GTT
Chad Versace (2):
xf86-video-intel
dri: Do not tile stencil buffer
src/intel_dri.c | 16
mesa
intel: Fix stencil buffer to be W tiled
src/mesa/drivers/dri/intel/intel_clear.c |6 ++
src/mesa/drivers/dri/intel/intel_context.c |9 ++-
