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-rw-r--r--thirdparty/spirv-reflect/patches/specialization-constants.patch293
-rw-r--r--thirdparty/spirv-reflect/spirv_reflect.c139
-rw-r--r--thirdparty/spirv-reflect/spirv_reflect.h53
3 files changed, 482 insertions, 3 deletions
diff --git a/thirdparty/spirv-reflect/patches/specialization-constants.patch b/thirdparty/spirv-reflect/patches/specialization-constants.patch
new file mode 100644
index 0000000000..8ff1dcc2e5
--- /dev/null
+++ b/thirdparty/spirv-reflect/patches/specialization-constants.patch
@@ -0,0 +1,293 @@
+diff --git a/thirdparty/spirv-reflect/spirv_reflect.c b/thirdparty/spirv-reflect/spirv_reflect.c
+index 0fc979a8a4..3e3643717a 100644
+--- a/thirdparty/spirv-reflect/spirv_reflect.c
++++ b/thirdparty/spirv-reflect/spirv_reflect.c
+@@ -124,6 +124,9 @@ typedef struct Decorations {
+ NumberDecoration location;
+ NumberDecoration offset;
+ NumberDecoration uav_counter_buffer;
++// -- GODOT begin --
++ NumberDecoration specialization_constant;
++// -- GODOT end --
+ StringDecoration semantic;
+ uint32_t array_stride;
+ uint32_t matrix_stride;
+@@ -610,6 +613,9 @@ static SpvReflectResult ParseNodes(Parser* p_parser)
+ p_parser->nodes[i].decorations.offset.value = (uint32_t)INVALID_VALUE;
+ p_parser->nodes[i].decorations.uav_counter_buffer.value = (uint32_t)INVALID_VALUE;
+ p_parser->nodes[i].decorations.built_in = (SpvBuiltIn)INVALID_VALUE;
++// -- GODOT begin --
++ p_parser->nodes[i].decorations.specialization_constant.value = (SpvBuiltIn)INVALID_VALUE;
++// -- GODOT end --
+ }
+ // Mark source file id node
+ p_parser->source_file_id = (uint32_t)INVALID_VALUE;
+@@ -800,10 +806,16 @@ static SpvReflectResult ParseNodes(Parser* p_parser)
+ CHECKED_READU32(p_parser, p_node->word_offset + 2, p_node->result_id);
+ }
+ break;
+-
++// -- GODOT begin --
+ case SpvOpSpecConstantTrue:
+ case SpvOpSpecConstantFalse:
+- case SpvOpSpecConstant:
++ case SpvOpSpecConstant: {
++ CHECKED_READU32(p_parser, p_node->word_offset + 1, p_node->result_type_id);
++ CHECKED_READU32(p_parser, p_node->word_offset + 2, p_node->result_id);
++ p_node->is_type = true;
++ }
++ break;
++// -- GODOT end --
+ case SpvOpSpecConstantComposite:
+ case SpvOpSpecConstantOp: {
+ CHECKED_READU32(p_parser, p_node->word_offset + 1, p_node->result_type_id);
+@@ -1309,6 +1321,9 @@ static SpvReflectResult ParseDecorations(Parser* p_parser)
+ skip = true;
+ }
+ break;
++// -- GODOT begin --
++ case SpvDecorationSpecId:
++// -- GODOT end --
+ case SpvDecorationBlock:
+ case SpvDecorationBufferBlock:
+ case SpvDecorationColMajor:
+@@ -1441,7 +1456,14 @@ static SpvReflectResult ParseDecorations(Parser* p_parser)
+ p_target_decorations->input_attachment_index.word_offset = word_offset;
+ }
+ break;
+-
++// -- GODOT begin --
++ case SpvDecorationSpecId: {
++ uint32_t word_offset = p_node->word_offset + member_offset+ 3;
++ CHECKED_READU32(p_parser, word_offset, p_target_decorations->specialization_constant.value);
++ p_target_decorations->specialization_constant.word_offset = word_offset;
++ }
++ break;
++// -- GODOT end --
+ case SpvReflectDecorationHlslCounterBufferGOOGLE: {
+ uint32_t word_offset = p_node->word_offset + member_offset+ 3;
+ CHECKED_READU32(p_parser, word_offset, p_target_decorations->uav_counter_buffer.value);
+@@ -1731,6 +1753,13 @@ static SpvReflectResult ParseType(
+ p_type->type_flags |= SPV_REFLECT_TYPE_FLAG_EXTERNAL_ACCELERATION_STRUCTURE;
+ }
+ break;
++// -- GODOT begin --
++ case SpvOpSpecConstantTrue:
++ case SpvOpSpecConstantFalse:
++ case SpvOpSpecConstant: {
++ }
++ break;
++// -- GODOT end --
+ }
+
+ if (result == SPV_REFLECT_RESULT_SUCCESS) {
+@@ -3187,6 +3216,69 @@ static SpvReflectResult ParseExecutionModes(Parser* p_parser, SpvReflectShaderMo
+ return SPV_REFLECT_RESULT_SUCCESS;
+ }
+
++// -- GODOT begin --
++static SpvReflectResult ParseSpecializationConstants(Parser* p_parser, SpvReflectShaderModule* p_module)
++{
++ p_module->specialization_constant_count = 0;
++ p_module->specialization_constants = NULL;
++ for (size_t i = 0; i < p_parser->node_count; ++i) {
++ Node* p_node = &(p_parser->nodes[i]);
++ if (p_node->op == SpvOpSpecConstantTrue || p_node->op == SpvOpSpecConstantFalse || p_node->op == SpvOpSpecConstant) {
++ p_module->specialization_constant_count++;
++ }
++ }
++
++ if (p_module->specialization_constant_count == 0) {
++ return SPV_REFLECT_RESULT_SUCCESS;
++ }
++
++ p_module->specialization_constants = (SpvReflectSpecializationConstant*)calloc(p_module->specialization_constant_count, sizeof(SpvReflectSpecializationConstant));
++
++ uint32_t index = 0;
++
++ for (size_t i = 0; i < p_parser->node_count; ++i) {
++ Node* p_node = &(p_parser->nodes[i]);
++ switch(p_node->op) {
++ default: continue;
++ case SpvOpSpecConstantTrue: {
++ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL;
++ p_module->specialization_constants[index].default_value.int_bool_value = 1;
++ } break;
++ case SpvOpSpecConstantFalse: {
++ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL;
++ p_module->specialization_constants[index].default_value.int_bool_value = 0;
++ } break;
++ case SpvOpSpecConstant: {
++ SpvReflectResult result = SPV_REFLECT_RESULT_SUCCESS;
++ uint32_t element_type_id = (uint32_t)INVALID_VALUE;
++ uint32_t default_value = 0;
++ IF_READU32(result, p_parser, p_node->word_offset + 1, element_type_id);
++ IF_READU32(result, p_parser, p_node->word_offset + 3, default_value);
++
++ Node* p_next_node = FindNode(p_parser, element_type_id);
++
++ if (p_next_node->op == SpvOpTypeInt) {
++ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_INT;
++ } else if (p_next_node->op == SpvOpTypeFloat) {
++ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_FLOAT;
++ } else {
++ return SPV_REFLECT_RESULT_ERROR_PARSE_FAILED;
++ }
++
++ p_module->specialization_constants[index].default_value.int_bool_value = default_value; //bits are the same for int and float
++ } break;
++ }
++
++ p_module->specialization_constants[index].name = p_node->name;
++ p_module->specialization_constants[index].constant_id = p_node->decorations.specialization_constant.value;
++ p_module->specialization_constants[index].spirv_id = p_node->result_id;
++ index++;
++ }
++
++ return SPV_REFLECT_RESULT_SUCCESS;
++}
++// -- GODOT end --
++
+ static SpvReflectResult ParsePushConstantBlocks(Parser* p_parser, SpvReflectShaderModule* p_module)
+ {
+ for (size_t i = 0; i < p_parser->node_count; ++i) {
+@@ -3562,6 +3654,12 @@ SpvReflectResult spvReflectCreateShaderModule(
+ result = ParsePushConstantBlocks(&parser, p_module);
+ SPV_REFLECT_ASSERT(result == SPV_REFLECT_RESULT_SUCCESS);
+ }
++// -- GODOT begin --
++ if (result == SPV_REFLECT_RESULT_SUCCESS) {
++ result = ParseSpecializationConstants(&parser, p_module);
++ SPV_REFLECT_ASSERT(result == SPV_REFLECT_RESULT_SUCCESS);
++ }
++// -- GODOT end --
+ if (result == SPV_REFLECT_RESULT_SUCCESS) {
+ result = ParseEntryPoints(&parser, p_module);
+ SPV_REFLECT_ASSERT(result == SPV_REFLECT_RESULT_SUCCESS);
+@@ -3691,6 +3789,9 @@ void spvReflectDestroyShaderModule(SpvReflectShaderModule* p_module)
+ SafeFree(p_entry->used_push_constants);
+ }
+ SafeFree(p_module->entry_points);
++// -- GODOT begin --
++ SafeFree(p_module->specialization_constants);
++// -- GODOT end --
+
+ // Push constants
+ for (size_t i = 0; i < p_module->push_constant_block_count; ++i) {
+@@ -3959,6 +4060,38 @@ SpvReflectResult spvReflectEnumerateEntryPointInterfaceVariables(
+ return SPV_REFLECT_RESULT_SUCCESS;
+ }
+
++// -- GODOT begin --
++SpvReflectResult spvReflectEnumerateSpecializationConstants(
++ const SpvReflectShaderModule* p_module,
++ uint32_t* p_count,
++ SpvReflectSpecializationConstant** pp_constants
++)
++{
++ if (IsNull(p_module)) {
++ return SPV_REFLECT_RESULT_ERROR_NULL_POINTER;
++ }
++ if (IsNull(p_count)) {
++ return SPV_REFLECT_RESULT_ERROR_NULL_POINTER;
++ }
++
++ if (IsNotNull(pp_constants)) {
++ if (*p_count != p_module->specialization_constant_count) {
++ return SPV_REFLECT_RESULT_ERROR_COUNT_MISMATCH;
++ }
++
++ for (uint32_t index = 0; index < *p_count; ++index) {
++ SpvReflectSpecializationConstant *p_const = &p_module->specialization_constants[index];
++ pp_constants[index] = p_const;
++ }
++ }
++ else {
++ *p_count = p_module->specialization_constant_count;
++ }
++
++ return SPV_REFLECT_RESULT_SUCCESS;
++}
++// -- GODOT end --
++
+ SpvReflectResult spvReflectEnumerateInputVariables(
+ const SpvReflectShaderModule* p_module,
+ uint32_t* p_count,
+diff --git a/thirdparty/spirv-reflect/spirv_reflect.h b/thirdparty/spirv-reflect/spirv_reflect.h
+index a5a956e9e8..21f8160770 100644
+--- a/thirdparty/spirv-reflect/spirv_reflect.h
++++ b/thirdparty/spirv-reflect/spirv_reflect.h
+@@ -292,6 +292,28 @@ typedef struct SpvReflectTypeDescription {
+ struct SpvReflectTypeDescription* members;
+ } SpvReflectTypeDescription;
+
++// -- GODOT begin --
++/*! @struct SpvReflectSpecializationConstant
++
++*/
++
++typedef enum SpvReflectSpecializationConstantType {
++ SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL = 0,
++ SPV_REFLECT_SPECIALIZATION_CONSTANT_INT = 1,
++ SPV_REFLECT_SPECIALIZATION_CONSTANT_FLOAT = 2,
++} SpvReflectSpecializationConstantType;
++
++typedef struct SpvReflectSpecializationConstant {
++ const char* name;
++ uint32_t spirv_id;
++ uint32_t constant_id;
++ SpvReflectSpecializationConstantType constant_type;
++ union {
++ float float_value;
++ uint32_t int_bool_value;
++ } default_value;
++} SpvReflectSpecializationConstant;
++// -- GODOT end --
+
+ /*! @struct SpvReflectInterfaceVariable
+
+@@ -439,6 +461,10 @@ typedef struct SpvReflectShaderModule {
+ SpvReflectInterfaceVariable* interface_variables;
+ uint32_t push_constant_block_count;
+ SpvReflectBlockVariable* push_constant_blocks;
++ // -- GODOT begin --
++ uint32_t specialization_constant_count;
++ SpvReflectSpecializationConstant* specialization_constants;
++ // -- GODOT end --
+
+ struct Internal {
+ size_t spirv_size;
+@@ -694,6 +720,33 @@ SpvReflectResult spvReflectEnumerateInputVariables(
+ SpvReflectInterfaceVariable** pp_variables
+ );
+
++// -- GOODT begin --
++/*! @fn spvReflectEnumerateSpecializationConstants
++ @brief If the module contains multiple entry points, this will only get
++ the specialization constants for the first one.
++ @param p_module Pointer to an instance of SpvReflectShaderModule.
++ @param p_count If pp_constants is NULL, the module's specialization constant
++ count will be stored here.
++ If pp_variables is not NULL, *p_count must contain
++ the module's specialization constant count.
++ @param pp_variables If NULL, the module's specialization constant count will be
++ written to *p_count.
++ If non-NULL, pp_constants must point to an array with
++ *p_count entries, where pointers to the module's
++ specialization constants will be written. The caller must not
++ free the specialization constants written to this array.
++ @return If successful, returns SPV_REFLECT_RESULT_SUCCESS.
++ Otherwise, the error code indicates the cause of the
++ failure.
++
++*/
++SpvReflectResult spvReflectEnumerateSpecializationConstants(
++ const SpvReflectShaderModule* p_module,
++ uint32_t* p_count,
++ SpvReflectSpecializationConstant** pp_constants
++);
++// -- GODOT end --
++
+ /*! @fn spvReflectEnumerateEntryPointInputVariables
+ @brief Enumerate the input variables for a given entry point.
+ @param entry_point The name of the entry point to get the input variables for.
diff --git a/thirdparty/spirv-reflect/spirv_reflect.c b/thirdparty/spirv-reflect/spirv_reflect.c
index 0fc979a8a4..8f614c8874 100644
--- a/thirdparty/spirv-reflect/spirv_reflect.c
+++ b/thirdparty/spirv-reflect/spirv_reflect.c
@@ -124,6 +124,9 @@ typedef struct Decorations {
NumberDecoration location;
NumberDecoration offset;
NumberDecoration uav_counter_buffer;
+// -- GODOT begin --
+ NumberDecoration specialization_constant;
+// -- GODOT end --
StringDecoration semantic;
uint32_t array_stride;
uint32_t matrix_stride;
@@ -610,6 +613,9 @@ static SpvReflectResult ParseNodes(Parser* p_parser)
p_parser->nodes[i].decorations.offset.value = (uint32_t)INVALID_VALUE;
p_parser->nodes[i].decorations.uav_counter_buffer.value = (uint32_t)INVALID_VALUE;
p_parser->nodes[i].decorations.built_in = (SpvBuiltIn)INVALID_VALUE;
+// -- GODOT begin --
+ p_parser->nodes[i].decorations.specialization_constant.value = (SpvBuiltIn)INVALID_VALUE;
+// -- GODOT end --
}
// Mark source file id node
p_parser->source_file_id = (uint32_t)INVALID_VALUE;
@@ -800,10 +806,16 @@ static SpvReflectResult ParseNodes(Parser* p_parser)
CHECKED_READU32(p_parser, p_node->word_offset + 2, p_node->result_id);
}
break;
-
+// -- GODOT begin --
case SpvOpSpecConstantTrue:
case SpvOpSpecConstantFalse:
- case SpvOpSpecConstant:
+ case SpvOpSpecConstant: {
+ CHECKED_READU32(p_parser, p_node->word_offset + 1, p_node->result_type_id);
+ CHECKED_READU32(p_parser, p_node->word_offset + 2, p_node->result_id);
+ p_node->is_type = true;
+ }
+ break;
+// -- GODOT end --
case SpvOpSpecConstantComposite:
case SpvOpSpecConstantOp: {
CHECKED_READU32(p_parser, p_node->word_offset + 1, p_node->result_type_id);
@@ -1309,6 +1321,9 @@ static SpvReflectResult ParseDecorations(Parser* p_parser)
skip = true;
}
break;
+// -- GODOT begin --
+ case SpvDecorationSpecId:
+// -- GODOT end --
case SpvDecorationBlock:
case SpvDecorationBufferBlock:
case SpvDecorationColMajor:
@@ -1441,7 +1456,14 @@ static SpvReflectResult ParseDecorations(Parser* p_parser)
p_target_decorations->input_attachment_index.word_offset = word_offset;
}
break;
-
+// -- GODOT begin --
+ case SpvDecorationSpecId: {
+ uint32_t word_offset = p_node->word_offset + member_offset+ 3;
+ CHECKED_READU32(p_parser, word_offset, p_target_decorations->specialization_constant.value);
+ p_target_decorations->specialization_constant.word_offset = word_offset;
+ }
+ break;
+// -- GODOT end --
case SpvReflectDecorationHlslCounterBufferGOOGLE: {
uint32_t word_offset = p_node->word_offset + member_offset+ 3;
CHECKED_READU32(p_parser, word_offset, p_target_decorations->uav_counter_buffer.value);
@@ -1731,6 +1753,13 @@ static SpvReflectResult ParseType(
p_type->type_flags |= SPV_REFLECT_TYPE_FLAG_EXTERNAL_ACCELERATION_STRUCTURE;
}
break;
+// -- GODOT begin --
+ case SpvOpSpecConstantTrue:
+ case SpvOpSpecConstantFalse:
+ case SpvOpSpecConstant: {
+ }
+ break;
+// -- GODOT end --
}
if (result == SPV_REFLECT_RESULT_SUCCESS) {
@@ -3187,6 +3216,69 @@ static SpvReflectResult ParseExecutionModes(Parser* p_parser, SpvReflectShaderMo
return SPV_REFLECT_RESULT_SUCCESS;
}
+// -- GODOT begin --
+static SpvReflectResult ParseSpecializationConstants(Parser* p_parser, SpvReflectShaderModule* p_module)
+{
+ p_module->specialization_constant_count = 0;
+ p_module->specialization_constants = NULL;
+ for (size_t i = 0; i < p_parser->node_count; ++i) {
+ Node* p_node = &(p_parser->nodes[i]);
+ if (p_node->op == SpvOpSpecConstantTrue || p_node->op == SpvOpSpecConstantFalse || p_node->op == SpvOpSpecConstant) {
+ p_module->specialization_constant_count++;
+ }
+ }
+
+ if (p_module->specialization_constant_count == 0) {
+ return SPV_REFLECT_RESULT_SUCCESS;
+ }
+
+ p_module->specialization_constants = (SpvReflectSpecializationConstant*)calloc(p_module->specialization_constant_count, sizeof(SpvReflectSpecializationConstant));
+
+ uint32_t index = 0;
+
+ for (size_t i = 0; i < p_parser->node_count; ++i) {
+ Node* p_node = &(p_parser->nodes[i]);
+ switch(p_node->op) {
+ default: continue;
+ case SpvOpSpecConstantTrue: {
+ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL;
+ p_module->specialization_constants[index].default_value.int_bool_value = 1;
+ } break;
+ case SpvOpSpecConstantFalse: {
+ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL;
+ p_module->specialization_constants[index].default_value.int_bool_value = 0;
+ } break;
+ case SpvOpSpecConstant: {
+ SpvReflectResult result = SPV_REFLECT_RESULT_SUCCESS;
+ uint32_t element_type_id = (uint32_t)INVALID_VALUE;
+ uint32_t default_value = 0;
+ IF_READU32(result, p_parser, p_node->word_offset + 1, element_type_id);
+ IF_READU32(result, p_parser, p_node->word_offset + 3, default_value);
+
+ Node* p_next_node = FindNode(p_parser, element_type_id);
+
+ if (p_next_node->op == SpvOpTypeInt) {
+ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_INT;
+ } else if (p_next_node->op == SpvOpTypeFloat) {
+ p_module->specialization_constants[index].constant_type = SPV_REFLECT_SPECIALIZATION_CONSTANT_FLOAT;
+ } else {
+ return SPV_REFLECT_RESULT_ERROR_PARSE_FAILED;
+ }
+
+ p_module->specialization_constants[index].default_value.int_bool_value = default_value; //bits are the same for int and float
+ } break;
+ }
+
+ p_module->specialization_constants[index].name = p_node->name;
+ p_module->specialization_constants[index].constant_id = p_node->decorations.specialization_constant.value;
+ p_module->specialization_constants[index].spirv_id = p_node->result_id;
+ index++;
+ }
+
+ return SPV_REFLECT_RESULT_SUCCESS;
+}
+// -- GODOT end --
+
static SpvReflectResult ParsePushConstantBlocks(Parser* p_parser, SpvReflectShaderModule* p_module)
{
for (size_t i = 0; i < p_parser->node_count; ++i) {
@@ -3562,6 +3654,12 @@ SpvReflectResult spvReflectCreateShaderModule(
result = ParsePushConstantBlocks(&parser, p_module);
SPV_REFLECT_ASSERT(result == SPV_REFLECT_RESULT_SUCCESS);
}
+// -- GODOT begin --
+ if (result == SPV_REFLECT_RESULT_SUCCESS) {
+ result = ParseSpecializationConstants(&parser, p_module);
+ SPV_REFLECT_ASSERT(result == SPV_REFLECT_RESULT_SUCCESS);
+ }
+// -- GODOT end --
if (result == SPV_REFLECT_RESULT_SUCCESS) {
result = ParseEntryPoints(&parser, p_module);
SPV_REFLECT_ASSERT(result == SPV_REFLECT_RESULT_SUCCESS);
@@ -3691,6 +3789,9 @@ void spvReflectDestroyShaderModule(SpvReflectShaderModule* p_module)
SafeFree(p_entry->used_push_constants);
}
SafeFree(p_module->entry_points);
+// -- GODOT begin --
+ SafeFree(p_module->specialization_constants);
+// -- GODOT end --
// Push constants
for (size_t i = 0; i < p_module->push_constant_block_count; ++i) {
@@ -3959,6 +4060,38 @@ SpvReflectResult spvReflectEnumerateEntryPointInterfaceVariables(
return SPV_REFLECT_RESULT_SUCCESS;
}
+// -- GODOT begin --
+SpvReflectResult spvReflectEnumerateSpecializationConstants(
+ const SpvReflectShaderModule* p_module,
+ uint32_t* p_count,
+ SpvReflectSpecializationConstant** pp_constants
+)
+{
+ if (IsNull(p_module)) {
+ return SPV_REFLECT_RESULT_ERROR_NULL_POINTER;
+ }
+ if (IsNull(p_count)) {
+ return SPV_REFLECT_RESULT_ERROR_NULL_POINTER;
+ }
+
+ if (IsNotNull(pp_constants)) {
+ if (*p_count != p_module->specialization_constant_count) {
+ return SPV_REFLECT_RESULT_ERROR_COUNT_MISMATCH;
+ }
+
+ for (uint32_t index = 0; index < *p_count; ++index) {
+ SpvReflectSpecializationConstant *p_const = &p_module->specialization_constants[index];
+ pp_constants[index] = p_const;
+ }
+ }
+ else {
+ *p_count = p_module->specialization_constant_count;
+ }
+
+ return SPV_REFLECT_RESULT_SUCCESS;
+}
+// -- GODOT end --
+
SpvReflectResult spvReflectEnumerateInputVariables(
const SpvReflectShaderModule* p_module,
uint32_t* p_count,
diff --git a/thirdparty/spirv-reflect/spirv_reflect.h b/thirdparty/spirv-reflect/spirv_reflect.h
index a5a956e9e8..21f8160770 100644
--- a/thirdparty/spirv-reflect/spirv_reflect.h
+++ b/thirdparty/spirv-reflect/spirv_reflect.h
@@ -292,6 +292,28 @@ typedef struct SpvReflectTypeDescription {
struct SpvReflectTypeDescription* members;
} SpvReflectTypeDescription;
+// -- GODOT begin --
+/*! @struct SpvReflectSpecializationConstant
+
+*/
+
+typedef enum SpvReflectSpecializationConstantType {
+ SPV_REFLECT_SPECIALIZATION_CONSTANT_BOOL = 0,
+ SPV_REFLECT_SPECIALIZATION_CONSTANT_INT = 1,
+ SPV_REFLECT_SPECIALIZATION_CONSTANT_FLOAT = 2,
+} SpvReflectSpecializationConstantType;
+
+typedef struct SpvReflectSpecializationConstant {
+ const char* name;
+ uint32_t spirv_id;
+ uint32_t constant_id;
+ SpvReflectSpecializationConstantType constant_type;
+ union {
+ float float_value;
+ uint32_t int_bool_value;
+ } default_value;
+} SpvReflectSpecializationConstant;
+// -- GODOT end --
/*! @struct SpvReflectInterfaceVariable
@@ -439,6 +461,10 @@ typedef struct SpvReflectShaderModule {
SpvReflectInterfaceVariable* interface_variables;
uint32_t push_constant_block_count;
SpvReflectBlockVariable* push_constant_blocks;
+ // -- GODOT begin --
+ uint32_t specialization_constant_count;
+ SpvReflectSpecializationConstant* specialization_constants;
+ // -- GODOT end --
struct Internal {
size_t spirv_size;
@@ -694,6 +720,33 @@ SpvReflectResult spvReflectEnumerateInputVariables(
SpvReflectInterfaceVariable** pp_variables
);
+// -- GOODT begin --
+/*! @fn spvReflectEnumerateSpecializationConstants
+ @brief If the module contains multiple entry points, this will only get
+ the specialization constants for the first one.
+ @param p_module Pointer to an instance of SpvReflectShaderModule.
+ @param p_count If pp_constants is NULL, the module's specialization constant
+ count will be stored here.
+ If pp_variables is not NULL, *p_count must contain
+ the module's specialization constant count.
+ @param pp_variables If NULL, the module's specialization constant count will be
+ written to *p_count.
+ If non-NULL, pp_constants must point to an array with
+ *p_count entries, where pointers to the module's
+ specialization constants will be written. The caller must not
+ free the specialization constants written to this array.
+ @return If successful, returns SPV_REFLECT_RESULT_SUCCESS.
+ Otherwise, the error code indicates the cause of the
+ failure.
+
+*/
+SpvReflectResult spvReflectEnumerateSpecializationConstants(
+ const SpvReflectShaderModule* p_module,
+ uint32_t* p_count,
+ SpvReflectSpecializationConstant** pp_constants
+);
+// -- GODOT end --
+
/*! @fn spvReflectEnumerateEntryPointInputVariables
@brief Enumerate the input variables for a given entry point.
@param entry_point The name of the entry point to get the input variables for.