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intel/compiler: Refactor TCS invocation ID setup into a helper

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When we add 8_PATCH mode, this will get a bit more complex, so we may
as well start by putting it in a helper function.

Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Kenneth Graunke
2019-05-03 14:20:00 -07:00
parent 381c2aded2
commit d86260719e
2 changed files with 23 additions and 14 deletions
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35
src/intel/compiler/brw_fs.cpp
View File

@@ -7392,20 +7392,16 @@ fs_visitor::run_vs()
return !failed;
}
bool
fs_visitor::run_tcs_single_patch()
void
fs_visitor::set_tcs_invocation_id()
{
assert(stage == MESA_SHADER_TESS_CTRL);
struct brw_tcs_prog_data *tcs_prog_data = brw_tcs_prog_data(prog_data);
/* r1-r4 contain the ICP handles. */
payload.num_regs = 5;
const unsigned invocation_id_mask =
devinfo->gen >= 11 ? INTEL_MASK(22, 16) : INTEL_MASK(23, 17);
const unsigned invocation_id_shift =
devinfo->gen >= 11 ? 16 : 17;
if (shader_time_index >= 0)
emit_shader_time_begin();
/* Initialize gl_InvocationID */
fs_reg channels_uw = bld.vgrf(BRW_REGISTER_TYPE_UW);
fs_reg channels_ud = bld.vgrf(BRW_REGISTER_TYPE_UD);
bld.MOV(channels_uw, fs_reg(brw_imm_uv(0x76543210)));
@@ -7414,10 +7410,6 @@ fs_visitor::run_tcs_single_patch()
if (tcs_prog_data->instances == 1) {
invocation_id = channels_ud;
} else {
const unsigned invocation_id_mask = devinfo->gen >= 11 ?
INTEL_MASK(22, 16) : INTEL_MASK(23, 17);
const unsigned invocation_id_shift = devinfo->gen >= 11 ? 16 : 17;
invocation_id = bld.vgrf(BRW_REGISTER_TYPE_UD);
/* Get instance number from g0.2 bits 23:17, and multiply it by 8. */
@@ -7429,6 +7421,21 @@ fs_visitor::run_tcs_single_patch()
bld.ADD(invocation_id, instance_times_8, channels_ud);
}
}
bool
fs_visitor::run_tcs_single_patch()
{
assert(stage == MESA_SHADER_TESS_CTRL);
/* r1-r4 contain the ICP handles. */
payload.num_regs = 5;
if (shader_time_index >= 0)
emit_shader_time_begin();
/* Initialize gl_InvocationID */
set_tcs_invocation_id();
/* Fix the disptach mask */
if (nir->info.tess.tcs_vertices_out % 8) {

2
src/intel/compiler/brw_fs.h
View File

@@ -194,6 +194,8 @@ public:
bool opt_cmod_propagation();
bool opt_zero_samples();
void set_tcs_invocation_id();
void emit_nir_code();
void nir_setup_outputs();
void nir_setup_uniforms();