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radv: add radv_calc_decompress_on_z_planes() helper

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2018-03-21 21:30:41 +01:00
parent 9b8e75bee3
commit 5ae9772245
1 changed files with 37 additions and 14 deletions
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51
src/amd/vulkan/radv_device.c
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@@ -3597,6 +3597,35 @@ radv_initialise_color_surface(struct radv_device *device,
}
}
static unsigned
radv_calc_decompress_on_z_planes(struct radv_device *device,
struct radv_image_view *iview)
{
unsigned max_zplanes = 0;
assert(iview->image->tc_compatible_htile);
if (device->physical_device->rad_info.chip_class >= GFX9) {
/* Default value for 32-bit depth surfaces. */
max_zplanes = 4;
if (iview->vk_format == VK_FORMAT_D16_UNORM &&
iview->image->info.samples > 1)
max_zplanes = 2;
max_zplanes = max_zplanes + 1;
} else {
if (iview->image->info.samples <= 1)
max_zplanes = 5;
else if (iview->image->info.samples <= 4)
max_zplanes = 3;
else
max_zplanes = 2;
}
return max_zplanes;
}
static void
radv_initialise_ds_surface(struct radv_device *device,
struct radv_ds_buffer_info *ds,
@@ -3667,14 +3696,11 @@ radv_initialise_ds_surface(struct radv_device *device,
ds->db_z_info |= S_028038_TILE_SURFACE_ENABLE(1);
if (iview->image->tc_compatible_htile) {
unsigned max_zplanes = 4;
unsigned max_zplanes =
radv_calc_decompress_on_z_planes(device, iview);
if (iview->vk_format == VK_FORMAT_D16_UNORM &&
iview->image->info.samples > 1)
max_zplanes = 2;
ds->db_z_info |= S_028038_DECOMPRESS_ON_N_ZPLANES(max_zplanes + 1) |
S_028038_ITERATE_FLUSH(1);
ds->db_z_info |= S_028038_DECOMPRESS_ON_N_ZPLANES(max_zplanes) |
S_028038_ITERATE_FLUSH(1);
ds->db_stencil_info |= S_02803C_ITERATE_FLUSH(1);
}
@@ -3752,14 +3778,11 @@ radv_initialise_ds_surface(struct radv_device *device,
ds->db_htile_surface = S_028ABC_FULL_CACHE(1);
if (iview->image->tc_compatible_htile) {
ds->db_htile_surface |= S_028ABC_TC_COMPATIBLE(1);
unsigned max_zplanes =
radv_calc_decompress_on_z_planes(device, iview);
if (iview->image->info.samples <= 1)
ds->db_z_info |= S_028040_DECOMPRESS_ON_N_ZPLANES(5);
else if (iview->image->info.samples <= 4)
ds->db_z_info |= S_028040_DECOMPRESS_ON_N_ZPLANES(3);
else
ds->db_z_info|= S_028040_DECOMPRESS_ON_N_ZPLANES(2);
ds->db_htile_surface |= S_028ABC_TC_COMPATIBLE(1);
ds->db_z_info |= S_028040_DECOMPRESS_ON_N_ZPLANES(max_zplanes);
}
}
}