On Friday, November 13, 2015 10:14:56 AM Jason Ekstrand wrote:
> Cc: Kenneth Graunke <kenn...@whitecape.org>
>
>
> ---
> src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
> b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
> index 4877504..61c63d4 100644
> --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
> +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp
> @@ -690,6 +690,17 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg
> dst, struct brw_reg src
> break;
> }
>
> + /* Stomp the resinfo output type to UINT32. On gens 4-5, the output type
> + * is set as part of the message descriptor. On gen4, the PRM seems to
> + * allow UINT32 and FLOAT32 (i965 PRM, Vol. 4 Section 4.8.1.1), but on
> + * later gens UINT32 is required. Once you hit Sandy Bridge, the bit is
> + * gone from the message descriptor entirely and you just get UINT32 all
> + * the time regasrdless. Since we can really only do non-UINT32 on gen4,
> + * just stomp it to UINT32 all the time.
> + */
> + if (inst->opcode == SHADER_OPCODE_TXS)
> + return_format = BRW_SAMPLER_RETURN_FORMAT_UINT32;
> +
> switch (inst->exec_size) {
> case 8:
> simd_mode = BRW_SAMPLER_SIMD_MODE_SIMD8;
> I like this one better. Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
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