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GDExtension: Add mem_alloc2 (and friends) so padding can be requested

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This commit is contained in:
David Snopek 2025-07-17 16:16:05 -05:00
parent 7826b6b13f
commit 91a4a28aab
2 changed files with 61 additions and 1 deletions
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19
core/extension/gdextension_interface.cpp
View file

@ -261,6 +261,7 @@ static void gdextension_get_godot_version2(GDExtensionGodotVersion2 *r_godot_ver
}
// Memory Functions
#ifndef DISABLE_DEPRECATED
static void *gdextension_mem_alloc(size_t p_size) {
return memalloc(p_size);
}
@ -272,6 +273,19 @@ static void *gdextension_mem_realloc(void *p_mem, size_t p_size) {
static void gdextension_mem_free(void *p_mem) {
memfree(p_mem);
}
#endif
static void *gdextension_mem_alloc2(size_t p_size, GDExtensionBool p_prepad_align) {
return Memory::alloc_static(p_size, p_prepad_align);
}
static void *gdextension_mem_realloc2(void *p_mem, size_t p_size, GDExtensionBool p_prepad_align) {
return Memory::realloc_static(p_mem, p_size, p_prepad_align);
}
static void gdextension_mem_free2(void *p_mem, GDExtensionBool p_prepad_align) {
Memory::free_static(p_mem, p_prepad_align);
}
// Helper print functions.
static void gdextension_print_error(const char *p_description, const char *p_function, const char *p_file, int32_t p_line, GDExtensionBool p_editor_notify) {
@ -1687,9 +1701,14 @@ void gdextension_setup_interface() {
REGISTER_INTERFACE_FUNC(get_godot_version);
#endif // DISABLE_DEPRECATED
REGISTER_INTERFACE_FUNC(get_godot_version2);
#ifndef DISABLE_DEPRECATED
REGISTER_INTERFACE_FUNC(mem_alloc);
REGISTER_INTERFACE_FUNC(mem_realloc);
REGISTER_INTERFACE_FUNC(mem_free);
#endif // DISABLE_DEPRECATED
REGISTER_INTERFACE_FUNC(mem_alloc2);
REGISTER_INTERFACE_FUNC(mem_realloc2);
REGISTER_INTERFACE_FUNC(mem_free2);
REGISTER_INTERFACE_FUNC(print_error);
REGISTER_INTERFACE_FUNC(print_error_with_message);
REGISTER_INTERFACE_FUNC(print_warning);

43
core/extension/gdextension_interface.h
View file

@ -856,6 +856,7 @@ typedef void (*GDExtensionInterfaceGetGodotVersion2)(GDExtensionGodotVersion2 *r
/**
* @name mem_alloc
* @since 4.1
* @deprecated in Godot 4.6. Use `mem_alloc2` instead.
*
* Allocates memory.
*
@ -868,6 +869,7 @@ typedef void *(*GDExtensionInterfaceMemAlloc)(size_t p_bytes);
/**
* @name mem_realloc
* @since 4.1
* @deprecated in Godot 4.6. Use `mem_realloc2` instead.
*
* Reallocates memory.
*
@ -881,6 +883,7 @@ typedef void *(*GDExtensionInterfaceMemRealloc)(void *p_ptr, size_t p_bytes);
/**
* @name mem_free
* @since 4.1
* @deprecated in Godot 4.6. Use `mem_free2` instead.
*
* Frees memory.
*
@ -888,7 +891,45 @@ typedef void *(*GDExtensionInterfaceMemRealloc)(void *p_ptr, size_t p_bytes);
*/
typedef void (*GDExtensionInterfaceMemFree)(void *p_ptr);
/* INTERFACE: Godot Core */
/**
* @name mem_alloc2
* @since 4.6
*
* Allocates memory.
*
* @param p_bytes The amount of memory to allocate in bytes.
* @param p_pad_align If true, the returned memory will have prepadding of at least 8 bytes.
*
* @return A pointer to the allocated memory, or NULL if unsuccessful.
*/
typedef void *(*GDExtensionInterfaceMemAlloc2)(size_t p_bytes, GDExtensionBool p_pad_align);
/**
* @name mem_realloc2
* @since 4.6
*
* Reallocates memory.
*
* @param p_ptr A pointer to the previously allocated memory.
* @param p_bytes The number of bytes to resize the memory block to.
* @param p_pad_align If true, the returned memory will have prepadding of at least 8 bytes.
*
* @return A pointer to the allocated memory, or NULL if unsuccessful.
*/
typedef void *(*GDExtensionInterfaceMemRealloc2)(void *p_ptr, size_t p_bytes, GDExtensionBool p_pad_align);
/**
* @name mem_free2
* @since 4.6
*
* Frees memory.
*
* @param p_ptr A pointer to the previously allocated memory.
* @param p_pad_align If true, the given memory was allocated with prepadding.
*/
typedef void (*GDExtensionInterfaceMemFree2)(void *p_ptr, GDExtensionBool p_pad_align);
//* INTERFACE: Godot Core */
/**
* @name print_error