diff options
Diffstat (limited to 'core/extension/gdextension_interface.h')
| -rw-r--r-- | core/extension/gdextension_interface.h | 149 |
1 files changed, 137 insertions, 12 deletions
diff --git a/core/extension/gdextension_interface.h b/core/extension/gdextension_interface.h index 9d9ae20c51..ed368fefc3 100644 --- a/core/extension/gdextension_interface.h +++ b/core/extension/gdextension_interface.h @@ -265,9 +265,11 @@ typedef void (*GDExtensionClassToString)(GDExtensionClassInstancePtr p_instance, typedef void (*GDExtensionClassReference)(GDExtensionClassInstancePtr p_instance); typedef void (*GDExtensionClassUnreference)(GDExtensionClassInstancePtr p_instance); typedef void (*GDExtensionClassCallVirtual)(GDExtensionClassInstancePtr p_instance, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_ret); -typedef GDExtensionObjectPtr (*GDExtensionClassCreateInstance)(void *p_userdata); -typedef void (*GDExtensionClassFreeInstance)(void *p_userdata, GDExtensionClassInstancePtr p_instance); -typedef GDExtensionClassCallVirtual (*GDExtensionClassGetVirtual)(void *p_userdata, GDExtensionConstStringNamePtr p_name); +typedef GDExtensionObjectPtr (*GDExtensionClassCreateInstance)(void *p_class_userdata); +typedef void (*GDExtensionClassFreeInstance)(void *p_class_userdata, GDExtensionClassInstancePtr p_instance); +typedef GDExtensionClassCallVirtual (*GDExtensionClassGetVirtual)(void *p_class_userdata, GDExtensionConstStringNamePtr p_name); +typedef void *(*GDExtensionClassGetVirtualCallData)(void *p_class_userdata, GDExtensionConstStringNamePtr p_name); +typedef void (*GDExtensionClassCallVirtualWithData)(GDExtensionClassInstancePtr p_instance, GDExtensionConstStringNamePtr p_name, void *p_virtual_call_userdata, const GDExtensionConstTypePtr *p_args, GDExtensionTypePtr r_ret); typedef struct { GDExtensionBool is_virtual; @@ -306,7 +308,17 @@ typedef struct { GDExtensionClassUnreference unreference_func; GDExtensionClassCreateInstance create_instance_func; // (Default) constructor; mandatory. If the class is not instantiable, consider making it virtual or abstract. GDExtensionClassFreeInstance free_instance_func; // Destructor; mandatory. - GDExtensionClassGetVirtual get_virtual_func; // Queries a virtual function by name and returns a callback to invoke the requested virtual function. + // Queries a virtual function by name and returns a callback to invoke the requested virtual function. + GDExtensionClassGetVirtual get_virtual_func; + // Paired with `call_virtual_with_data_func`, this is an alternative to `get_virtual_func` for extensions that + // need or benefit from extra data when calling virtual functions. + // Returns user data that will be passed to `call_virtual_with_data_func`. + // Returning `NULL` from this function signals to Godot that the virtual function is not overridden. + // Data returned from this function should be managed by the extension and must be valid until the extension is deinitialized. + // You should supply either `get_virtual_func`, or `get_virtual_call_data_func` with `call_virtual_with_data_func`. + GDExtensionClassGetVirtualCallData get_virtual_call_data_func; + // Used to call virtual functions when `get_virtual_call_data_func` is not null. + GDExtensionClassCallVirtualWithData call_virtual_with_data_func; GDExtensionClassGetRID get_rid_func; void *class_userdata; // Per-class user data, later accessible in instance bindings. } GDExtensionClassCreationInfo2; @@ -367,6 +379,47 @@ typedef struct { GDExtensionVariantPtr *default_arguments; } GDExtensionClassMethodInfo; +typedef void (*GDExtensionCallableCustomCall)(void *callable_userdata, const GDExtensionConstVariantPtr *p_args, GDExtensionInt p_argument_count, GDExtensionVariantPtr r_return, GDExtensionCallError *r_error); +typedef GDExtensionBool (*GDExtensionCallableCustomIsValid)(void *callable_userdata); +typedef void (*GDExtensionCallableCustomFree)(void *callable_userdata); + +typedef uint32_t (*GDExtensionCallableCustomHash)(void *callable_userdata); +typedef GDExtensionBool (*GDExtensionCallableCustomEqual)(void *callable_userdata_a, void *callable_userdata_b); +typedef GDExtensionBool (*GDExtensionCallableCustomLessThan)(void *callable_userdata_a, void *callable_userdata_b); + +typedef void (*GDExtensionCallableCustomToString)(void *callable_userdata, GDExtensionBool *r_is_valid, GDExtensionStringPtr r_out); + +typedef struct { + /* Only `call_func` and `token` are strictly required, however, `object` should be passed if its not a static method. + * + * `token` should point to an address that uniquely identifies the GDExtension (for example, the + * `GDExtensionClassLibraryPtr` passed to the entry symbol function. + * + * `hash_func`, `equal_func`, and `less_than_func` are optional. If not provided both `call_func` and + * `callable_userdata` together are used as the identity of the callable for hashing and comparison purposes. + * + * The hash returned by `hash_func` is cached, `hash_func` will not be called more than once per callable. + * + * `is_valid_func` is necessary if the validity of the callable can change before destruction. + * + * `free_func` is necessary if `callable_userdata` needs to be cleaned up when the callable is freed. + */ + void *callable_userdata; + void *token; + + GDExtensionObjectPtr object; + + GDExtensionCallableCustomCall call_func; + GDExtensionCallableCustomIsValid is_valid_func; + GDExtensionCallableCustomFree free_func; + + GDExtensionCallableCustomHash hash_func; + GDExtensionCallableCustomEqual equal_func; + GDExtensionCallableCustomLessThan less_than_func; + + GDExtensionCallableCustomToString to_string_func; +} GDExtensionCallableCustomInfo; + /* SCRIPT INSTANCE EXTENSION */ typedef void *GDExtensionScriptInstanceDataPtr; // Pointer to custom ScriptInstance native implementation. @@ -1379,7 +1432,7 @@ typedef void (*GDExtensionInterfaceStringNewWithWideChars)(GDExtensionUninitiali * * @param r_dest A pointer to a Variant to hold the newly created String. * @param p_contents A pointer to a Latin-1 encoded C string. - * @param p_size The number of characters. + * @param p_size The number of characters (= number of bytes). */ typedef void (*GDExtensionInterfaceStringNewWithLatin1CharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const char *p_contents, GDExtensionInt p_size); @@ -1391,7 +1444,7 @@ typedef void (*GDExtensionInterfaceStringNewWithLatin1CharsAndLen)(GDExtensionUn * * @param r_dest A pointer to a Variant to hold the newly created String. * @param p_contents A pointer to a UTF-8 encoded C string. - * @param p_size The number of characters. + * @param p_size The number of bytes (not code units). */ typedef void (*GDExtensionInterfaceStringNewWithUtf8CharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const char *p_contents, GDExtensionInt p_size); @@ -1403,9 +1456,9 @@ typedef void (*GDExtensionInterfaceStringNewWithUtf8CharsAndLen)(GDExtensionUnin * * @param r_dest A pointer to a Variant to hold the newly created String. * @param p_contents A pointer to a UTF-16 encoded C string. - * @param p_size The number of characters. + * @param p_size The number of characters (not bytes). */ -typedef void (*GDExtensionInterfaceStringNewWithUtf16CharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const char16_t *p_contents, GDExtensionInt p_size); +typedef void (*GDExtensionInterfaceStringNewWithUtf16CharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const char16_t *p_contents, GDExtensionInt p_char_count); /** * @name string_new_with_utf32_chars_and_len @@ -1415,9 +1468,9 @@ typedef void (*GDExtensionInterfaceStringNewWithUtf16CharsAndLen)(GDExtensionUni * * @param r_dest A pointer to a Variant to hold the newly created String. * @param p_contents A pointer to a UTF-32 encoded C string. - * @param p_size The number of characters. + * @param p_size The number of characters (not bytes). */ -typedef void (*GDExtensionInterfaceStringNewWithUtf32CharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const char32_t *p_contents, GDExtensionInt p_size); +typedef void (*GDExtensionInterfaceStringNewWithUtf32CharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const char32_t *p_contents, GDExtensionInt p_char_count); /** * @name string_new_with_wide_chars_and_len @@ -1427,9 +1480,9 @@ typedef void (*GDExtensionInterfaceStringNewWithUtf32CharsAndLen)(GDExtensionUni * * @param r_dest A pointer to a Variant to hold the newly created String. * @param p_contents A pointer to a wide C string. - * @param p_size The number of characters. + * @param p_size The number of characters (not bytes). */ -typedef void (*GDExtensionInterfaceStringNewWithWideCharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const wchar_t *p_contents, GDExtensionInt p_size); +typedef void (*GDExtensionInterfaceStringNewWithWideCharsAndLen)(GDExtensionUninitializedStringPtr r_dest, const wchar_t *p_contents, GDExtensionInt p_char_count); /** * @name string_to_latin1_chars @@ -1611,6 +1664,50 @@ typedef void (*GDExtensionInterfaceStringOperatorPlusEqC32str)(GDExtensionString */ typedef GDExtensionInt (*GDExtensionInterfaceStringResize)(GDExtensionStringPtr p_self, GDExtensionInt p_resize); +/* INTERFACE: StringName Utilities */ + +/** + * @name string_name_new_with_latin1_chars + * @since 4.2 + * + * Creates a StringName from a Latin-1 encoded C string. + * + * If `p_is_static` is true, then: + * - The StringName will reuse the `p_contents` buffer instead of copying it. + * You must guarantee that the buffer remains valid for the duration of the application (e.g. string literal). + * - You must not call a destructor for this StringName. Incrementing the initial reference once should achieve this. + * + * `p_is_static` is purely an optimization and can easily introduce undefined behavior if used wrong. In case of doubt, set it to false. + * + * @param r_dest A pointer to uninitialized storage, into which the newly created StringName is constructed. + * @param p_contents A pointer to a C string (null terminated and Latin-1 or ASCII encoded). + * @param p_is_static Whether the StringName reuses the buffer directly (see above). + */ +typedef void (*GDExtensionInterfaceStringNameNewWithLatin1Chars)(GDExtensionUninitializedStringNamePtr r_dest, const char *p_contents, GDExtensionBool p_is_static); + +/** + * @name string_name_new_with_utf8_chars + * @since 4.2 + * + * Creates a StringName from a UTF-8 encoded C string. + * + * @param r_dest A pointer to uninitialized storage, into which the newly created StringName is constructed. + * @param p_contents A pointer to a C string (null terminated and UTF-8 encoded). + */ +typedef void (*GDExtensionInterfaceStringNameNewWithUtf8Chars)(GDExtensionUninitializedStringNamePtr r_dest, const char *p_contents); + +/** + * @name string_name_new_with_utf8_chars_and_len + * @since 4.2 + * + * Creates a StringName from a UTF-8 encoded string with a given number of characters. + * + * @param r_dest A pointer to uninitialized storage, into which the newly created StringName is constructed. + * @param p_contents A pointer to a C string (null terminated and UTF-8 encoded). + * @param p_size The number of bytes (not UTF-8 code points). + */ +typedef void (*GDExtensionInterfaceStringNameNewWithUtf8CharsAndLen)(GDExtensionUninitializedStringNamePtr r_dest, const char *p_contents, GDExtensionInt p_size); + /* INTERFACE: XMLParser Utilities */ /** @@ -2250,6 +2347,34 @@ typedef void (*GDExtensionInterfacePlaceHolderScriptInstanceUpdate)(GDExtensionS */ typedef GDExtensionScriptInstanceDataPtr (*GDExtensionInterfaceObjectGetScriptInstance)(GDExtensionConstObjectPtr p_object, GDExtensionObjectPtr p_language); +/* INTERFACE: Callable */ + +/** + * @name callable_custom_create + * @since 4.2 + * + * Creates a custom Callable object from a function pointer. + * + * Provided struct can be safely freed once the function returns. + * + * @param r_callable A pointer that will receive the new Callable. + * @param p_callable_custom_info The info required to construct a Callable. + */ +typedef void (*GDExtensionInterfaceCallableCustomCreate)(GDExtensionUninitializedTypePtr r_callable, GDExtensionCallableCustomInfo *p_callable_custom_info); + +/** + * @name callable_custom_get_userdata + * @since 4.2 + * + * Retrieves the userdata pointer from a custom Callable. + * + * If the Callable is not a custom Callable or the token does not match the one provided to callable_custom_create() via GDExtensionCallableCustomInfo then NULL will be returned. + * + * @param p_callable A pointer to a Callable. + * @param p_token A pointer to an address that uniquely identifies the GDExtension. + */ +typedef void *(*GDExtensionInterfaceCallableCustomGetUserData)(GDExtensionConstTypePtr p_callable, void *p_token); + /* INTERFACE: ClassDB */ /** |