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zink: factor out interpolation to helper

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We actually need to set all of these for fragment inputs as well, so
let's make a helper for this that we can reuse.

Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9775>
This commit is contained in:
Erik Faye-Lund
2021-03-23 17:16:48 +01:00
committed by Marge Bot
parent 277ea7a015
commit 80c3a53927
1 changed files with 27 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+27 -16
View File
@@ -452,6 +452,32 @@ input_var_init(struct ntv_context *ctx, struct nir_variable *var)
return var_id;
}
static void
emit_interpolation(struct ntv_context *ctx, SpvId var_id,
enum glsl_interp_mode mode)
{
switch (mode) {
case INTERP_MODE_NONE:
case INTERP_MODE_SMOOTH:
/* XXX spirv doesn't seem to have anything for this */
break;
case INTERP_MODE_FLAT:
spirv_builder_emit_decoration(&ctx->builder, var_id,
SpvDecorationFlat);
break;
case INTERP_MODE_EXPLICIT:
spirv_builder_emit_decoration(&ctx->builder, var_id,
SpvDecorationExplicitInterpAMD);
break;
case INTERP_MODE_NOPERSPECTIVE:
spirv_builder_emit_decoration(&ctx->builder, var_id,
SpvDecorationNoPerspective);
break;
default:
unreachable("unknown interpolation value");
}
}
static void
emit_input(struct ntv_context *ctx, struct nir_variable *var)
{
@@ -604,22 +630,7 @@ emit_output(struct ntv_context *ctx, struct nir_variable *var)
spirv_builder_emit_component(&ctx->builder, var_id,
var->data.location_frac);
switch (var->data.interpolation) {
case INTERP_MODE_NONE:
case INTERP_MODE_SMOOTH: /* XXX spirv doesn't seem to have anything for this */
break;
case INTERP_MODE_FLAT:
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationFlat);
break;
case INTERP_MODE_EXPLICIT:
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationExplicitInterpAMD);
break;
case INTERP_MODE_NOPERSPECTIVE:
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationNoPerspective);
break;
default:
unreachable("unknown interpolation value");
}
emit_interpolation(ctx, var_id, var->data.interpolation);
if (var->data.patch)
spirv_builder_emit_decoration(&ctx->builder, var_id, SpvDecorationPatch);