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ac/nir/ngg: gs store output use src_type index for type info

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More precise type info, can be used for 16bit output streamout
to convert 16bit int/uint/float to 32bit one later.

Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19697>
This commit is contained in:
Qiang Yu
2022-11-13 16:30:39 +08:00
committed by Marge Bot
parent 0cb5ea512f
commit d3e20e8834
1 changed files with 5 additions and 3 deletions
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src/amd/common/ac_nir_lower_ngg.c
+5 -3
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@@ -2476,6 +2476,8 @@ lower_ngg_gs_store_output(nir_builder *b, nir_intrinsic_instr *intrin, lower_ngg
assert(base_index < VARYING_SLOT_MAX);
nir_ssa_def *store_val = intrin->src[0].ssa;
nir_alu_type src_type = nir_intrinsic_src_type(intrin);
enum glsl_base_type val_type = nir_get_glsl_base_type_for_nir_type(src_type);
/* Small bitsize components consume the same amount of space as 32-bit components,
* but 64-bit ones consume twice as many. (Vulkan spec 15.1.5)
@@ -2483,6 +2485,7 @@ lower_ngg_gs_store_output(nir_builder *b, nir_intrinsic_instr *intrin, lower_ngg
* 64-bit IO has been lowered to multi 32-bit IO.
*/
assert(store_val->bit_size <= 32);
assert(glsl_base_type_get_bit_size(val_type) == store_val->bit_size);
/* Save output usage info. */
gs_output_info *info = &s->output_info[location];
@@ -2515,11 +2518,10 @@ lower_ngg_gs_store_output(nir_builder *b, nir_intrinsic_instr *intrin, lower_ngg
nir_variable *var = s->output_vars[location][component];
if (!var) {
var = nir_local_variable_create(
s->impl, glsl_uintN_t_type(store_val->bit_size), "output");
var = nir_local_variable_create(s->impl, glsl_scalar_type(val_type), "output");
s->output_vars[location][component] = var;
}
assert(glsl_base_type_bit_size(glsl_get_base_type(var->type)) == store_val->bit_size);
assert(glsl_get_base_type(var->type) == val_type);
nir_store_var(b, var, nir_channel(b, store_val, comp), 0x1u);
}