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radeonsi/nir: set tgsi_shader_info::uses_fbfetch for KHR_blend_equation_adv.

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This doesn't implement the color buffer load.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
This commit is contained in:
Marek Olšák 2019-07-22 21:20:29 -04:00
parent 45556731b6
commit 264ab6ffcd
1 changed files with 23 additions and 5 deletions
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28
src/gallium/drivers/radeonsi/si_shader_nir.c
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@ -52,10 +52,10 @@ static nir_variable* intrinsic_get_var(nir_intrinsic_instr *instr)
return nir_deref_instr_get_variable(nir_src_as_deref(instr->src[0]));
}
static void gather_intrinsic_load_deref_info(const nir_shader *nir,
const nir_intrinsic_instr *instr,
nir_variable *var,
struct tgsi_shader_info *info)
static void gather_intrinsic_load_deref_input_info(const nir_shader *nir,
const nir_intrinsic_instr *instr,
nir_variable *var,
struct tgsi_shader_info *info)
{
assert(var && var->data.mode == nir_var_shader_in);
@ -89,6 +89,22 @@ static void gather_intrinsic_load_deref_info(const nir_shader *nir,
}
}
static void gather_intrinsic_load_deref_output_info(const nir_shader *nir,
const nir_intrinsic_instr *instr,
nir_variable *var,
struct tgsi_shader_info *info)
{
assert(var && var->data.mode == nir_var_shader_out);
switch (nir->info.stage) {
case MESA_SHADER_FRAGMENT:
if (var->data.fb_fetch_output)
info->uses_fbfetch = true;
break;
default:;
}
}
static void scan_instruction(const struct nir_shader *nir,
struct tgsi_shader_info *info,
nir_instr *instr)
@ -257,7 +273,7 @@ static void scan_instruction(const struct nir_shader *nir,
glsl_get_base_type(glsl_without_array(var->type));
if (mode == nir_var_shader_in) {
gather_intrinsic_load_deref_info(nir, intr, var, info);
gather_intrinsic_load_deref_input_info(nir, intr, var, info);
switch (var->data.interpolation) {
case INTERP_MODE_NONE:
@ -283,6 +299,8 @@ static void scan_instruction(const struct nir_shader *nir,
info->uses_linear_center = true;
break;
}
} else if (mode == nir_var_shader_out) {
gather_intrinsic_load_deref_output_info(nir, intr, var, info);
}
break;
}