intel: Implement Gen12 workaround for array textures of size 1

Gen12 does not support RENDER_SURFACE_STATE::SurfaceArray = true &&
RENDER_SURFACE_STATE::Depth = 0. SurfaceArray can only be set to true
if Depth >= 1.

We workaround this limitation by adding the max(value, 1) snippet in
the shaders on the 3 components for texture array sizes.

Tested on Gen9 with the following Vulkan CTS tests :
dEQP-VK.image.image_size.2d_array.*

v2: Drop debug print (Tapani)
    Switch to GEN:BUG instead of Wa_

v3: Fix dEQP-VK.image.image_size.1d_array.* cases (Lionel)

v4: Fix dEQP-VK.glsl.texture_functions.query.texturesize.* cases
    (Missing tex_op handling) (Lionel)

v5: Missing break statement (Lionel)

v6: Fixup comment (Tapani)

v7: Fixup comment again (Tapani)

v8: Don't use sample_dim as index (Jason)
    Rename pass
    Simplify control flow

Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Tapani Pälli <[email protected]> (v7)
Reviewed-by: Jason Ekstrand <[email protected]>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3362>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3362>

1 files changed, 2 insertions, 0 deletions

diff --git a/src/intel/compiler/brw_nir.h b/src/intel/compiler/brw_nir.h
index 7c7f1ea11b7..32a8badaa24 100644
--- a/src/intel/compiler/brw_nir.h
+++ b/src/intel/compiler/brw_nir.h
@@ -134,6 +134,8 @@ void brw_postprocess_nir(nir_shader *nir,
                          const struct brw_compiler *compiler,
                          bool is_scalar);
 
+bool brw_nir_clamp_image_1d_2d_array_sizes(nir_shader *shader);
+
 bool brw_nir_apply_attribute_workarounds(nir_shader *nir,
                                          const uint8_t *attrib_wa_flags);