[Mesa-dev] [PATCH] i965/vec4: Override destination register writemask in sampler message send.

[Ian Romanick]

Please tag the commit with

Cc: "10.5" <mesa-stable at lists.freedesktop.org>

On 02/13/2015 05:03 AM, Francisco Jerez wrote:
> This line was removed by accident in commit
> 16b911257440afbd77a6eb762e28df62e3c19bc7 causing a regression in the
> ES3-CTS.gtf.GL3Tests.shadow.shadow_execution_vert Khronos conformance
> test.  It's necessary because the swizzle_result() code below expects
> all four components of the vector to be valid.
> 
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89094
> Tested-by: Lu Hua <huax.lu at intel.com>
> Cc: Matt Turner <mattst88 at gmail.com>
> ---
>  src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
> index 9421786..eb69ebb 100644
> --- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
> @@ -2613,6 +2613,7 @@ vec4_visitor::visit(ir_texture *ir)
>        is_high_sampler(brw, sampler_reg);
>     inst->base_mrf = 2;
>     inst->mlen = inst->header_present + 1; /* always at least one */
> +   inst->dst.writemask = WRITEMASK_XYZW;
>     inst->shadow_compare = ir->shadow_comparitor != NULL;
>  
>     inst->src[1] = sampler_reg;
>