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Revert "intel/compiler: make uses_pos_offset a tri-state"

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This reverts commit 5489033fa8.

The problem I was trying to address is that we were programming the
3DSTATE_PS::PositionXYOffsetSelect bit differently with GPL (CENTROID)
than without (NONE).

I failed to understand that this bit also impacts the thread payload
layout. GPL fragment shaders don't know ahead of time if pos_offset is
going to be used. It'll be choosen at runtime base on push constant
bits. So we need to program this bit different just to have a payload
matching the compiled shader code.

This fixes the freedoom replay with GPL FS shader in SIMD32.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Acked-by: Ivan Briano <ivan.briano@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22938>
This commit is contained in:
Lionel Landwerlin
2023-05-10 08:16:59 +03:00
committed by Marge Bot
parent 728e316864
commit b4b17f8aaa
6 changed files with 17 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
src/intel/compiler/brw_compiler.h
View File

@@ -923,8 +923,7 @@ struct brw_wm_prog_data {
bool dispatch_16;
bool dispatch_32;
bool dual_src_blend;
enum brw_sometimes uses_pos_offset;
bool read_pos_offset_input;
bool uses_pos_offset;
bool uses_omask;
bool uses_kill;
bool uses_src_depth;
@@ -1187,25 +1186,6 @@ brw_wm_prog_data_is_coarse(const struct brw_wm_prog_data *prog_data,
return prog_data->coarse_pixel_dispatch;
}
static inline bool
brw_wm_prog_data_uses_position_xy_offset(const struct brw_wm_prog_data *prog_data,
enum brw_wm_msaa_flags pushed_msaa_flags)
{
bool per_sample;
if (pushed_msaa_flags & BRW_WM_MSAA_FLAG_ENABLE_DYNAMIC) {
per_sample = (pushed_msaa_flags & BRW_WM_MSAA_FLAG_PERSAMPLE_INTERP) != 0;
} else {
assert(prog_data->persample_dispatch == BRW_ALWAYS ||
prog_data->persample_dispatch == BRW_NEVER);
per_sample = prog_data->persample_dispatch == BRW_ALWAYS;
}
if (!per_sample)
return false;
return prog_data->read_pos_offset_input;
}
struct brw_push_const_block {
unsigned dwords; /* Dword count, not reg aligned */
unsigned regs;

16
src/intel/compiler/brw_fs.cpp
View File

@@ -7365,16 +7365,12 @@ brw_nir_populate_wm_prog_data(const nir_shader *shader,
* per-sample dispatch. If we need gl_SamplePosition and we don't have
* persample dispatch, we hard-code it to 0.5.
*/
prog_data->read_pos_offset_input =
BITSET_TEST(shader->info.system_values_read,
SYSTEM_VALUE_SAMPLE_POS) ||
BITSET_TEST(shader->info.system_values_read,
SYSTEM_VALUE_SAMPLE_POS_OR_CENTER);
if (prog_data->read_pos_offset_input)
prog_data->uses_pos_offset = prog_data->persample_dispatch;
else
prog_data->uses_pos_offset = BRW_NEVER;
prog_data->uses_pos_offset =
prog_data->persample_dispatch != BRW_NEVER &&
(BITSET_TEST(shader->info.system_values_read,
SYSTEM_VALUE_SAMPLE_POS) ||
BITSET_TEST(shader->info.system_values_read,
SYSTEM_VALUE_SAMPLE_POS_OR_CENTER));
}
prog_data->has_render_target_reads = shader->info.outputs_read != 0ull;