[Mesa-dev] [PATCH v2 10/13] i965: Make TES inputs match TCS outputs.

[Jordan Justen]

Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>

On 2015-12-11 13:23:59, Kenneth Graunke wrote:
> Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
> ---
>  src/mesa/drivers/dri/i965/brw_nir.c | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/src/mesa/drivers/dri/i965/brw_nir.c b/src/mesa/drivers/dri/i965/brw_nir.c
> index d405991..3cb6123 100644
> --- a/src/mesa/drivers/dri/i965/brw_nir.c
> +++ b/src/mesa/drivers/dri/i965/brw_nir.c
> @@ -641,6 +641,17 @@ brw_create_nir(struct brw_context *brw,
>     /* First, lower the GLSL IR or Mesa IR to NIR */
>     if (shader_prog) {
>        nir = glsl_to_nir(shader_prog, stage, options);
> +
> +      if (nir->stage == MESA_SHADER_TESS_EVAL &&
> +          shader_prog->_LinkedShaders[MESA_SHADER_TESS_CTRL]) {
> +         const struct gl_program *tcs =
> +            shader_prog->_LinkedShaders[MESA_SHADER_TESS_CTRL]->Program;
> +         /* Work around the TCS having bonus outputs used as shared memory
> +          * segments, which makes OutputsWritten not match InputsRead
> +          */
> +         nir->info.inputs_read = tcs->OutputsWritten;
> +         nir->info.patch_inputs_read = tcs->PatchOutputsWritten;
> +      }
>     } else {
>        nir = prog_to_nir(prog, options);
>        OPT_V(nir_convert_to_ssa); /* turn registers into SSA */
> -- 
> 2.6.3
> 
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