[PATCH vkd3d 2/7] vkd3d-shader: Handle arrayed builtin inputs.

[Conor McCarthy]

Prevents a crash in RADV when such inputs are present.

>From a vkd3d-proton patch by Hans-Kristian Arntzen.

Signed-off-by: Conor McCarthy <cmccarthy at codeweavers.com>
---
 libs/vkd3d-shader/spirv.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 20744fe7..b070230a 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -4604,6 +4604,16 @@ static uint32_t vkd3d_dxbc_compiler_emit_input(struct vkd3d_dxbc_compiler *compi
                 val_id = vkd3d_spirv_build_op_in_bounds_access_chain1(builder, ptr_type_id, input_id, index);
                 dst_reg.idx[0].offset = i;
             }
+            else if (builtin && builtin->spirv_array_size >= 1)
+            {
+                /* The DXBC builtin is not an array, but the SPIR-V builtin is an array, so
+                 * we'll need to index into the builtin when we try to load it.
+                 * This happens when we try to read TessLevel in domain shader. */
+                ptr_type_id = vkd3d_spirv_get_op_type_pointer(builder, SpvStorageClassInput, type_id);
+                index = vkd3d_dxbc_compiler_get_constant_uint(compiler, builtin->member_idx);
+                val_id = vkd3d_spirv_build_op_in_bounds_access_chain1(builder, ptr_type_id, input_id, index);
+                dst_reg.idx[0].offset = reg_idx + i;
+            }
             val_id = vkd3d_spirv_build_op_load(builder, type_id, val_id, SpvMemoryAccessMaskNone);
 
             if (builtin && builtin->fixup_pfn)
-- 
2.32.0