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Check that GDExtension is opened by compatible Godot version

pull/1208/head
David Snopek 2023-08-14 15:59:46 -05:00
parent 5eebc6b20c
commit fecb2959b4
3 changed files with 3319 additions and 185 deletions
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3449
gdextension/extension_api.json
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File diff suppressed because it is too large Load Diff

53
src/godot.cpp
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@ -34,6 +34,7 @@
#include <godot_cpp/classes/wrapped.hpp>
#include <godot_cpp/core/class_db.hpp>
#include <godot_cpp/core/memory.hpp>
#include <godot_cpp/core/version.hpp>
#include <godot_cpp/variant/variant.hpp>
#include <godot_cpp/core/error_macros.hpp>
@ -194,9 +195,15 @@ GDExtensionBinding::Callback GDExtensionBinding::init_callback = nullptr;
GDExtensionBinding::Callback GDExtensionBinding::terminate_callback = nullptr;
GDExtensionInitializationLevel GDExtensionBinding::minimum_initialization_level = GDEXTENSION_INITIALIZATION_CORE;
#define LOAD_PROC_ADDRESS(m_name, m_type) \
internal::gdextension_interface_##m_name = (m_type)p_get_proc_address(#m_name); \
ERR_FAIL_NULL_V_MSG(internal::gdextension_interface_##m_name, false, "Unable to load GDExtension interface function " #m_name "()")
#define ERR_PRINT_EARLY(m_msg) \
internal::gdextension_interface_print_error(m_msg, FUNCTION_STR, __FILE__, __LINE__, false)
#define LOAD_PROC_ADDRESS(m_name, m_type) \
internal::gdextension_interface_##m_name = (m_type)p_get_proc_address(#m_name); \
if (!internal::gdextension_interface_##m_name) { \
ERR_PRINT_EARLY("Unable to load GDExtension interface function " #m_name "()"); \
return false; \
}
// Partial definition of the legacy interface so we can detect it and show an error.
typedef struct {
@ -219,14 +226,15 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
if (raw_interface[0] == 4 && raw_interface[1] == 0) {
// Use the legacy interface only to give a nice error.
LegacyGDExtensionInterface *legacy_interface = (LegacyGDExtensionInterface *)p_get_proc_address;
internal::gdextension_interface_print_error_with_message = (GDExtensionInterfacePrintErrorWithMessage)legacy_interface->print_error_with_message;
ERR_FAIL_V_MSG(false, "Cannot load a GDExtension built for Godot 4.1+ in Godot 4.0.");
internal::gdextension_interface_print_error = (GDExtensionInterfacePrintError)legacy_interface->print_error;
ERR_PRINT_EARLY("Cannot load a GDExtension built for Godot 4.1+ in Godot 4.0.");
return false;
}
// Load the "print_error_with_message" function first (needed by the ERR_FAIL_NULL_V_MSG() macro).
internal::gdextension_interface_print_error_with_message = (GDExtensionInterfacePrintErrorWithMessage)p_get_proc_address("print_error_with_message");
if (!internal::gdextension_interface_print_error_with_message) {
printf("ERROR: Unable to load GDExtension interface function print_error_with_message().\n");
// Load the "print_error" function first (needed by the ERR_PRINT_EARLY() macro).
internal::gdextension_interface_print_error = (GDExtensionInterfacePrintError)p_get_proc_address("print_error");
if (!internal::gdextension_interface_print_error) {
printf("ERROR: Unable to load GDExtension interface function print_error().\n");
return false;
}
@ -235,6 +243,29 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
internal::token = p_library;
LOAD_PROC_ADDRESS(get_godot_version, GDExtensionInterfaceGetGodotVersion);
internal::gdextension_interface_get_godot_version(&internal::godot_version);
// Check that godot-cpp was compiled using an extension_api.json older or at the
// same version as the Godot that is loading it.
bool compatible;
if (internal::godot_version.major != GODOT_VERSION_MAJOR) {
compatible = internal::godot_version.major > GODOT_VERSION_MAJOR;
} else if (internal::godot_version.minor != GODOT_VERSION_MINOR) {
compatible = internal::godot_version.minor > GODOT_VERSION_MINOR;
} else {
compatible = internal::godot_version.patch >= GODOT_VERSION_PATCH;
}
if (!compatible) {
// We need to use snprintf() here because vformat() uses Variant, and we haven't loaded
// the GDExtension interface far enough to use Variants yet.
char msg[128];
snprintf(msg, 128, "Cannot load a GDExtension built for Godot %d.%d.%d using an older version of Godot (%d.%d.%d).",
GODOT_VERSION_MAJOR, GODOT_VERSION_MINOR, GODOT_VERSION_PATCH,
internal::godot_version.major, internal::godot_version.minor, internal::godot_version.patch);
ERR_PRINT_EARLY(msg);
return false;
}
LOAD_PROC_ADDRESS(mem_alloc, GDExtensionInterfaceMemAlloc);
LOAD_PROC_ADDRESS(mem_realloc, GDExtensionInterfaceMemRealloc);
LOAD_PROC_ADDRESS(mem_free, GDExtensionInterfaceMemFree);
@ -372,9 +403,6 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
LOAD_PROC_ADDRESS(editor_add_plugin, GDExtensionInterfaceEditorAddPlugin);
LOAD_PROC_ADDRESS(editor_remove_plugin, GDExtensionInterfaceEditorRemovePlugin);
// Load the Godot version.
internal::gdextension_interface_get_godot_version(&internal::godot_version);
r_initialization->initialize = initialize_level;
r_initialization->deinitialize = deinitialize_level;
r_initialization->minimum_initialization_level = minimum_initialization_level;
@ -388,6 +416,7 @@ GDExtensionBool GDExtensionBinding::init(GDExtensionInterfaceGetProcAddress p_ge
}
#undef LOAD_PROC_ADDRESS
#undef ERR_PRINT_EARLY
void GDExtensionBinding::initialize_level(void *userdata, GDExtensionInitializationLevel p_level) {
ClassDB::current_level = p_level;

2
test/project/project.godot
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@ -12,7 +12,7 @@ config_version=5
config/name="GDExtension Test Project"
run/main_scene="res://main.tscn"
config/features=PackedStringArray("4.1")
config/features=PackedStringArray("4.2")
config/icon="res://icon.png"
[native_extensions]