[PATCH vkd3d v3 2/3] vkd3d-shader/spirv: Support runtime descriptor array offsets using push constants.
Conor McCarthy
cmccarthy at codeweavers.com
Thu Dec 2 09:09:09 CST 2021
Signed-off-by: Conor McCarthy <cmccarthy at codeweavers.com>
---
include/vkd3d_shader.h | 36 ++++++++--
libs/vkd3d-shader/spirv.c | 133 +++++++++++++++++++++++++++++++------
libs/vkd3d/state.c | 16 ++++-
libs/vkd3d/vkd3d_private.h | 2 +-
4 files changed, 159 insertions(+), 28 deletions(-)
diff --git a/include/vkd3d_shader.h b/include/vkd3d_shader.h
index 4a51b3f4..791ac037 100644
--- a/include/vkd3d_shader.h
+++ b/include/vkd3d_shader.h
@@ -458,6 +458,12 @@ struct vkd3d_shader_transform_feedback_info
unsigned int buffer_stride_count;
};
+struct vkd3d_shader_descriptor_offset
+{
+ unsigned int static_offset;
+ unsigned int dynamic_offset_index;
+};
+
/**
* A chained structure containing descriptor offsets.
*
@@ -477,10 +483,28 @@ struct vkd3d_shader_descriptor_offset_info
const void *next;
/**
- * Pointer to an array of offsets into the descriptor arrays referenced by
- * the 'bindings' array in struct vkd3d_shader_interface_info. This allows
- * mapping multiple shader resource arrays to a single binding point in
- * the target environment.
+ * Byte offset within the push constants of an array of 32-bit
+ * descriptor array offsets. See the description of 'binding_offsets'
+ * below.
+ */
+ unsigned int descriptor_table_offset;
+ /** Size, in elements, of the descriptor table push constant array. */
+ unsigned int descriptor_table_count;
+
+ /**
+ * Pointer to an array of struct vkd3d_shader_descriptor_offset objects.
+ * The 'static_offset' field contains an offset into the descriptor arrays
+ * referenced by the 'bindings' array in struct vkd3d_shader_interface_info.
+ * This allows mapping multiple shader resource arrays to a single binding
+ * point in the target environment.
+ *
+ * 'dynamic_offset_index' in struct vkd3d_shader_descriptor_offset allows
+ * offsets to be set at runtime. The 32-bit descriptor table push constant
+ * at this index will be added to 'static_offset' to calculate the final
+ * binding offset.
+ *
+ * If runtime offsets are not required, set all 'dynamic_offset_index'
+ * values to \c ~0u and 'descriptor_table_count' to zero.
*
* For example, to map Direct3D constant buffer registers 'cb0[0:3]' and
* 'cb1[6:7]' to descriptors 8-12 and 4-5 in the Vulkan descriptor array in
@@ -508,7 +532,7 @@ struct vkd3d_shader_descriptor_offset_info
* This field may be NULL, in which case the corresponding offsets are
* specified to be 0.
*/
- const unsigned int *binding_offsets;
+ const struct vkd3d_shader_descriptor_offset *binding_offsets;
/**
* Pointer to an array of offsets into the descriptor arrays referenced by
@@ -517,7 +541,7 @@ struct vkd3d_shader_descriptor_offset_info
* not supported in this version of vkd3d-shader, and therefore this field
* must either be NULL or specify 0 offsets.
*/
- const unsigned int *uav_counter_offsets;
+ const struct vkd3d_shader_descriptor_offset *uav_counter_offsets;
};
/** The format of a shader to be compiled or scanned. */
diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 522225d9..5b8e3a75 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -1958,6 +1958,7 @@ struct vkd3d_symbol_descriptor_array
uint32_t ptr_type_id;
unsigned int set;
unsigned int binding;
+ unsigned int push_constant_index;
};
struct vkd3d_symbol_register_data
@@ -1990,6 +1991,12 @@ struct vkd3d_symbol_sampler_data
struct vkd3d_shader_register_range range;
};
+struct vkd3d_descriptor_binding_address
+{
+ unsigned int binding_base_idx;
+ unsigned int push_constant_index;
+};
+
struct vkd3d_symbol_descriptor_array_data
{
SpvStorageClass storage_class;
@@ -2236,6 +2243,9 @@ struct vkd3d_dxbc_compiler
struct vkd3d_shader_interface_info shader_interface;
struct vkd3d_shader_descriptor_offset_info offset_info;
+ uint32_t descriptor_offsets_member_id;
+ uint32_t push_constants_var_id;
+ uint32_t *descriptor_offset_ids;
struct vkd3d_push_constant_buffer_binding *push_constants;
const struct vkd3d_shader_spirv_target_info *spirv_target_info;
@@ -2397,6 +2407,12 @@ struct vkd3d_dxbc_compiler *vkd3d_dxbc_compiler_create(const struct vkd3d_shader
compiler->offset_info = *offset_info;
if (offset_info->uav_counter_offsets)
WARN("Ignoring UAV counter offsets %p.\n", offset_info->uav_counter_offsets);
+ if (compiler->offset_info.descriptor_table_count && !(compiler->descriptor_offset_ids = vkd3d_calloc(
+ compiler->offset_info.descriptor_table_count, sizeof(*compiler->descriptor_offset_ids))))
+ {
+ vkd3d_dxbc_compiler_destroy(compiler);
+ return NULL;
+ }
}
}
@@ -2552,14 +2568,35 @@ static struct vkd3d_string_buffer *vkd3d_shader_register_range_string(struct vkd
return buffer;
}
+static uint32_t vkd3d_dxbc_compiler_get_constant_uint(struct vkd3d_dxbc_compiler *compiler,
+ uint32_t value);
+
+static unsigned int vkd3d_dxbc_compiler_get_dynamic_offset_index(struct vkd3d_dxbc_compiler *compiler,
+ const struct vkd3d_shader_descriptor_offset *binding_offsets, unsigned int index)
+{
+ unsigned int push_constant_index;
+
+ if (!binding_offsets)
+ return ~0u;
+
+ if ((push_constant_index = binding_offsets[index].dynamic_offset_index) != ~0u)
+ {
+ assert(push_constant_index < compiler->offset_info.descriptor_table_count);
+ /* Push constant loads must occur in the main prolog, after the push constants variable is created. */
+ compiler->descriptor_offset_ids[push_constant_index] = vkd3d_dxbc_compiler_get_constant_uint(compiler,
+ push_constant_index);
+ }
+ return push_constant_index;
+}
+
static struct vkd3d_shader_descriptor_binding vkd3d_dxbc_compiler_get_descriptor_binding(
struct vkd3d_dxbc_compiler *compiler, const struct vkd3d_shader_register *reg,
const struct vkd3d_shader_register_range *range, enum vkd3d_shader_resource_type resource_type,
- bool is_uav_counter, unsigned int *binding_base_idx)
+ bool is_uav_counter, struct vkd3d_descriptor_binding_address *binding_address)
{
const struct vkd3d_shader_interface_info *shader_interface = &compiler->shader_interface;
unsigned int register_last = (range->last == ~0u) ? range->first : range->last;
- const unsigned int *binding_offsets = compiler->offset_info.binding_offsets;
+ const struct vkd3d_shader_descriptor_offset *binding_offsets = compiler->offset_info.binding_offsets;
enum vkd3d_shader_descriptor_type descriptor_type;
enum vkd3d_shader_binding_flag resource_type_flag;
struct vkd3d_shader_descriptor_binding binding;
@@ -2613,7 +2650,8 @@ static struct vkd3d_shader_descriptor_binding vkd3d_dxbc_compiler_get_descriptor
range->first, range->space, current->binding.count);
}
- *binding_base_idx = current->register_index;
+ binding_address->binding_base_idx = current->register_index;
+ binding_address->push_constant_index = ~0u;
return current->binding;
}
if (shader_interface->uav_counter_count)
@@ -2640,7 +2678,10 @@ static struct vkd3d_shader_descriptor_binding vkd3d_dxbc_compiler_get_descriptor
|| current->binding.count <= register_last - current->register_index)
continue;
- *binding_base_idx = current->register_index - (binding_offsets ? binding_offsets[i] : 0);
+ binding_address->binding_base_idx = current->register_index
+ - (binding_offsets ? binding_offsets[i].static_offset : 0);
+ binding_address->push_constant_index = vkd3d_dxbc_compiler_get_dynamic_offset_index(compiler,
+ binding_offsets, i);
return current->binding;
}
if (shader_interface->binding_count)
@@ -2657,7 +2698,8 @@ static struct vkd3d_shader_descriptor_binding vkd3d_dxbc_compiler_get_descriptor
}
done:
- *binding_base_idx = range->first;
+ binding_address->binding_base_idx = range->first;
+ binding_address->push_constant_index = ~0u;
binding.set = 0;
binding.count = 1;
binding.binding = compiler->binding_idx++;
@@ -2678,10 +2720,10 @@ static void vkd3d_dxbc_compiler_emit_descriptor_binding_for_reg(struct vkd3d_dxb
enum vkd3d_shader_resource_type resource_type, bool is_uav_counter)
{
struct vkd3d_shader_descriptor_binding binding;
- unsigned int binding_base_idx; /* Value not used. */
+ struct vkd3d_descriptor_binding_address binding_address; /* Values not used. */
binding = vkd3d_dxbc_compiler_get_descriptor_binding(compiler, reg, range, resource_type, is_uav_counter,
- &binding_base_idx);
+ &binding_address);
vkd3d_dxbc_compiler_emit_descriptor_binding(compiler, variable_id, &binding);
}
@@ -3248,13 +3290,14 @@ static bool vkd3d_dxbc_compiler_enable_descriptor_indexing(struct vkd3d_dxbc_com
}
static uint32_t vkd3d_dxbc_compiler_get_descriptor_index(struct vkd3d_dxbc_compiler *compiler,
- const struct vkd3d_shader_register *reg, unsigned int binding_base_idx,
- enum vkd3d_shader_resource_type resource_type)
+ const struct vkd3d_shader_register *reg, const struct vkd3d_symbol *array_symbol,
+ unsigned int binding_base_idx, enum vkd3d_shader_resource_type resource_type)
{
+ const struct vkd3d_symbol_descriptor_array *array_key = &array_symbol->key.descriptor_array;
struct vkd3d_shader_register_index index = reg->idx[1];
uint32_t index_id;
- if (index.rel_addr)
+ if (index.rel_addr || array_key->push_constant_index != ~0u)
{
if (!vkd3d_dxbc_compiler_enable_descriptor_indexing(compiler, reg->type, resource_type))
{
@@ -3268,7 +3311,15 @@ static uint32_t vkd3d_dxbc_compiler_get_descriptor_index(struct vkd3d_dxbc_compi
index.offset -= binding_base_idx;
index_id = vkd3d_dxbc_compiler_emit_register_addressing(compiler, &index);
- return index_id;
+ if (array_key->push_constant_index != ~0u)
+ {
+ struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
+ uint32_t type_id = vkd3d_spirv_get_type_id(builder, VKD3D_SHADER_COMPONENT_UINT, 1);
+ index_id = vkd3d_spirv_build_op_iadd(builder, type_id, index_id,
+ compiler->descriptor_offset_ids[array_key->push_constant_index]);
+ }
+
+ return index_id;
}
static void vkd3d_dxbc_compiler_emit_dereference_register(struct vkd3d_dxbc_compiler *compiler,
@@ -3284,7 +3335,7 @@ static void vkd3d_dxbc_compiler_emit_dereference_register(struct vkd3d_dxbc_comp
assert(!reg->idx[0].rel_addr);
if (register_info->descriptor_array)
indexes[index_count++] = vkd3d_dxbc_compiler_get_descriptor_index(compiler, reg,
- register_info->binding_base_idx, VKD3D_SHADER_RESOURCE_BUFFER);
+ register_info->descriptor_array, register_info->binding_base_idx, VKD3D_SHADER_RESOURCE_BUFFER);
indexes[index_count++] = vkd3d_dxbc_compiler_get_constant_uint(compiler, register_info->member_idx);
indexes[index_count++] = vkd3d_dxbc_compiler_emit_register_addressing(compiler, ®->idx[2]);
}
@@ -5495,14 +5546,14 @@ static void vkd3d_dxbc_compiler_emit_dcl_indexable_temp(struct vkd3d_dxbc_compil
static void vkd3d_dxbc_compiler_emit_push_constant_buffers(struct vkd3d_dxbc_compiler *compiler)
{
+ unsigned int i, j, count, reg_idx, descriptor_offsets_member_idx = 0;
const SpvStorageClass storage_class = SpvStorageClassPushConstant;
uint32_t vec4_id, length_id, struct_id, pointer_type_id, var_id;
struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
- unsigned int i, j, count, reg_idx;
struct vkd3d_symbol reg_symbol;
uint32_t *member_ids;
- count = 0;
+ count = !!compiler->offset_info.descriptor_table_count;
for (i = 0; i < compiler->shader_interface.push_constant_buffer_count; ++i)
{
const struct vkd3d_push_constant_buffer_binding *cb = &compiler->push_constants[i];
@@ -5531,6 +5582,17 @@ static void vkd3d_dxbc_compiler_emit_push_constant_buffers(struct vkd3d_dxbc_com
++j;
}
+ if (compiler->offset_info.descriptor_table_count)
+ {
+ uint32_t type_id = vkd3d_spirv_get_type_id(builder, VKD3D_SHADER_COMPONENT_UINT, 1);
+ length_id = vkd3d_dxbc_compiler_get_constant_uint(compiler, compiler->offset_info.descriptor_table_count);
+ member_ids[j] = vkd3d_spirv_build_op_type_array(builder, type_id, length_id);
+ vkd3d_spirv_build_op_decorate1(builder, member_ids[j], SpvDecorationArrayStride, 4);
+ descriptor_offsets_member_idx = j;
+ compiler->descriptor_offsets_member_id = vkd3d_dxbc_compiler_get_constant_uint(compiler, j);
+ assert(j == count - 1);
+ }
+
struct_id = vkd3d_spirv_build_op_type_struct(builder, member_ids, count);
vkd3d_spirv_build_op_decorate(builder, struct_id, SpvDecorationBlock, NULL, 0);
vkd3d_spirv_build_op_name(builder, struct_id, "push_cb");
@@ -5539,6 +5601,7 @@ static void vkd3d_dxbc_compiler_emit_push_constant_buffers(struct vkd3d_dxbc_com
pointer_type_id = vkd3d_spirv_get_op_type_pointer(builder, storage_class, struct_id);
var_id = vkd3d_spirv_build_op_variable(builder, &builder->global_stream,
pointer_type_id, storage_class, 0);
+ compiler->push_constants_var_id = var_id;
for (i = 0, j = 0; i < compiler->shader_interface.push_constant_buffer_count; ++i)
{
@@ -5559,6 +5622,11 @@ static void vkd3d_dxbc_compiler_emit_push_constant_buffers(struct vkd3d_dxbc_com
++j;
}
+ if (compiler->offset_info.descriptor_table_count)
+ {
+ vkd3d_spirv_build_op_member_decorate1(builder, struct_id, descriptor_offsets_member_idx,
+ SpvDecorationOffset, compiler->offset_info.descriptor_table_offset);
+ }
}
struct vkd3d_descriptor_variable_info
@@ -5573,15 +5641,18 @@ static uint32_t vkd3d_dxbc_compiler_build_descriptor_variable(struct vkd3d_dxbc_
struct vkd3d_descriptor_variable_info *var_info)
{
struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
+ struct vkd3d_descriptor_binding_address binding_address;
struct vkd3d_shader_descriptor_binding binding;
uint32_t array_type_id, ptr_type_id, var_id;
struct vkd3d_symbol symbol;
struct rb_entry *entry;
binding = vkd3d_dxbc_compiler_get_descriptor_binding(compiler, reg, range,
- resource_type, false, &var_info->binding_base_idx);
+ resource_type, false, &binding_address);
+ var_info->binding_base_idx = binding_address.binding_base_idx;
- if (binding.count == 1 && range->last != ~0u)
+ if (binding.count == 1 && range->first == binding_address.binding_base_idx && range->last != ~0u
+ && binding_address.push_constant_index == ~0u)
{
ptr_type_id = vkd3d_spirv_get_op_type_pointer(builder, storage_class, type_id);
var_id = vkd3d_spirv_build_op_variable(builder, &builder->global_stream,
@@ -5605,6 +5676,7 @@ static uint32_t vkd3d_dxbc_compiler_build_descriptor_variable(struct vkd3d_dxbc_
symbol.key.descriptor_array.ptr_type_id = ptr_type_id;
symbol.key.descriptor_array.set = binding.set;
symbol.key.descriptor_array.binding = binding.binding;
+ symbol.key.descriptor_array.push_constant_index = binding_address.push_constant_index;
if ((entry = rb_get(&compiler->symbol_table, &symbol)))
{
var_info->array_symbol = RB_ENTRY_VALUE(entry, struct vkd3d_symbol, entry);
@@ -8055,7 +8127,7 @@ static void vkd3d_dxbc_compiler_prepare_image(struct vkd3d_dxbc_compiler *compil
const struct vkd3d_symbol_descriptor_array_data *array_data = &symbol->descriptor_array->info.descriptor_array;
uint32_t ptr_type_id, index_id;
- index_id = vkd3d_dxbc_compiler_get_descriptor_index(compiler, resource_reg,
+ index_id = vkd3d_dxbc_compiler_get_descriptor_index(compiler, resource_reg, symbol->descriptor_array,
symbol->info.resource.binding_base_idx, symbol->info.resource.resource_type_info->resource_type);
ptr_type_id = vkd3d_spirv_get_op_type_pointer(builder, array_data->storage_class,
@@ -8115,8 +8187,8 @@ static void vkd3d_dxbc_compiler_prepare_image(struct vkd3d_dxbc_compiler *compil
= ®ister_info.descriptor_array->info.descriptor_array;
uint32_t ptr_type_id = vkd3d_spirv_get_op_type_pointer(builder,
register_info.storage_class, array_data->contained_type_id);
- uint32_t array_idx = vkd3d_dxbc_compiler_get_descriptor_index(compiler,
- sampler_reg, register_info.binding_base_idx, VKD3D_SHADER_RESOURCE_NONE);
+ uint32_t array_idx = vkd3d_dxbc_compiler_get_descriptor_index(compiler, sampler_reg,
+ register_info.descriptor_array, register_info.binding_base_idx, VKD3D_SHADER_RESOURCE_NONE);
sampler_var_id = vkd3d_spirv_build_op_access_chain(builder, ptr_type_id, register_info.id, &array_idx, 1);
}
@@ -9484,10 +9556,32 @@ static void vkd3d_dxbc_compiler_emit_hull_shader_inputs(struct vkd3d_dxbc_compil
}
}
+static void vkd3d_dxbc_compiler_emit_descriptor_offset_push_constants(struct vkd3d_dxbc_compiler *compiler)
+{
+ struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
+ uint32_t type_id, ptr_type_id, ptr_id, index_ids[2];
+ unsigned int i;
+
+ for (i = 0; i < compiler->offset_info.descriptor_table_count; ++i)
+ {
+ if (!compiler->descriptor_offset_ids[i])
+ continue;
+ index_ids[0] = compiler->descriptor_offsets_member_id;
+ index_ids[1] = compiler->descriptor_offset_ids[i];
+ type_id = vkd3d_spirv_get_type_id(builder, VKD3D_SHADER_COMPONENT_UINT, 1);
+ ptr_type_id = vkd3d_spirv_get_op_type_pointer(builder, SpvStorageClassPushConstant, type_id);
+ ptr_id = vkd3d_spirv_build_op_access_chain(builder, ptr_type_id,
+ compiler->push_constants_var_id, index_ids, 2);
+ compiler->descriptor_offset_ids[i] = vkd3d_spirv_build_op_load(builder, type_id, ptr_id,
+ SpvMemoryAccessMaskNone);
+ }
+}
+
/* This function is called after declarations are processed. */
static void vkd3d_dxbc_compiler_emit_main_prolog(struct vkd3d_dxbc_compiler *compiler)
{
vkd3d_dxbc_compiler_emit_push_constant_buffers(compiler);
+ vkd3d_dxbc_compiler_emit_descriptor_offset_push_constants(compiler);
if (compiler->xfb_info && compiler->xfb_info->element_count
&& compiler->shader_type != VKD3D_SHADER_TYPE_GEOMETRY)
@@ -9930,6 +10024,7 @@ void vkd3d_dxbc_compiler_destroy(struct vkd3d_dxbc_compiler *compiler)
vkd3d_free(compiler->output_info);
vkd3d_free(compiler->push_constants);
+ vkd3d_free(compiler->descriptor_offset_ids);
vkd3d_spirv_builder_free(&compiler->spirv_builder);
diff --git a/libs/vkd3d/state.c b/libs/vkd3d/state.c
index 7c9575f6..10503a60 100644
--- a/libs/vkd3d/state.c
+++ b/libs/vkd3d/state.c
@@ -608,6 +608,8 @@ static void d3d12_root_signature_append_vk_binding(struct d3d12_root_signature *
bool buffer_descriptor, enum vkd3d_shader_visibility shader_visibility,
unsigned int descriptor_count, struct vkd3d_descriptor_set_context *context)
{
+ struct vkd3d_shader_descriptor_offset *offset = root_signature->descriptor_offsets
+ ? &root_signature->descriptor_offsets[context->descriptor_index] : NULL;
struct vkd3d_shader_resource_binding *mapping
= &root_signature->descriptor_mapping[context->descriptor_index++];
@@ -619,6 +621,11 @@ static void d3d12_root_signature_append_vk_binding(struct d3d12_root_signature *
mapping->binding.set = root_signature->vk_set_count;
mapping->binding.binding = context->descriptor_binding++;
mapping->binding.count = descriptor_count;
+ if (offset)
+ {
+ offset->static_offset = 0;
+ offset->dynamic_offset_index = ~0u;
+ }
if (context->unbounded_offset != UINT_MAX)
d3d12_root_signature_append_descriptor_set_layout(root_signature, context, 0);
@@ -718,7 +725,7 @@ static void d3d12_root_signature_map_vk_unbounded_binding(struct d3d12_root_sign
enum vkd3d_shader_visibility shader_visibility, struct vkd3d_descriptor_set_context *context)
{
struct vkd3d_shader_resource_binding *mapping = &root_signature->descriptor_mapping[context->descriptor_index];
- unsigned int *offset = &root_signature->descriptor_offsets[context->descriptor_index++];
+ struct vkd3d_shader_descriptor_offset *offset = &root_signature->descriptor_offsets[context->descriptor_index++];
mapping->type = range->type;
mapping->register_space = range->register_space;
@@ -729,7 +736,8 @@ static void d3d12_root_signature_map_vk_unbounded_binding(struct d3d12_root_sign
|| range->type == VKD3D_SHADER_DESCRIPTOR_TYPE_UAV) && !buffer_descriptor);
mapping->binding.binding = range->binding;
mapping->binding.count = range->vk_binding_count;
- *offset = descriptor_offset;
+ offset->static_offset = descriptor_offset;
+ offset->dynamic_offset_index = ~0u;
}
static void d3d12_root_signature_map_descriptor_unbounded_binding(struct d3d12_root_signature *root_signature,
@@ -1931,6 +1939,8 @@ static HRESULT d3d12_pipeline_state_init_compute(struct d3d12_pipeline_state *st
{
offset_info.type = VKD3D_SHADER_STRUCTURE_TYPE_DESCRIPTOR_OFFSET_INFO;
offset_info.next = NULL;
+ offset_info.descriptor_table_offset = 0;
+ offset_info.descriptor_table_count = 0;
offset_info.binding_offsets = root_signature->descriptor_offsets;
offset_info.uav_counter_offsets = NULL;
vkd3d_prepend_struct(&target_info, &offset_info);
@@ -2697,6 +2707,8 @@ static HRESULT d3d12_pipeline_state_init_graphics(struct d3d12_pipeline_state *s
{
offset_info.type = VKD3D_SHADER_STRUCTURE_TYPE_DESCRIPTOR_OFFSET_INFO;
offset_info.next = NULL;
+ offset_info.descriptor_table_offset = 0;
+ offset_info.descriptor_table_count = 0;
offset_info.binding_offsets = root_signature->descriptor_offsets;
offset_info.uav_counter_offsets = NULL;
vkd3d_prepend_struct(&shader_interface, &offset_info);
diff --git a/libs/vkd3d/vkd3d_private.h b/libs/vkd3d/vkd3d_private.h
index 23af9e32..e9631313 100644
--- a/libs/vkd3d/vkd3d_private.h
+++ b/libs/vkd3d/vkd3d_private.h
@@ -737,7 +737,7 @@ struct d3d12_root_signature
unsigned int binding_count;
struct vkd3d_shader_resource_binding *descriptor_mapping;
- unsigned int *descriptor_offsets;
+ struct vkd3d_shader_descriptor_offset *descriptor_offsets;
unsigned int root_constant_count;
struct vkd3d_shader_push_constant_buffer *root_constants;
--
2.33.0
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