Created the callable_mp macro, for signals to call method pointers directly.

1 files changed, 94 insertions, 0 deletions

diff --git a/core/callable_method_pointer.cpp b/core/callable_method_pointer.cpp
new file mode 100644
index 0000000000..8774af6add
--- /dev/null
+++ b/core/callable_method_pointer.cpp
@@ -0,0 +1,94 @@
+/*************************************************************************/
+/*  callable_method_pointer.cpp                                          */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
+/*                                                                       */
+/* Permission is hereby granted, free of charge, to any person obtaining */
+/* a copy of this software and associated documentation files (the       */
+/* "Software"), to deal in the Software without restriction, including   */
+/* without limitation the rights to use, copy, modify, merge, publish,   */
+/* distribute, sublicense, and/or sell copies of the Software, and to    */
+/* permit persons to whom the Software is furnished to do so, subject to */
+/* the following conditions:                                             */
+/*                                                                       */
+/* The above copyright notice and this permission notice shall be        */
+/* included in all copies or substantial portions of the Software.       */
+/*                                                                       */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
+/*************************************************************************/
+
+#include "callable_method_pointer.h"
+
+bool CallableCustomMethodPointerBase::compare_equal(const CallableCustom *p_a, const CallableCustom *p_b) {
+	const CallableCustomMethodPointerBase *a = static_cast<const CallableCustomMethodPointerBase *>(p_a);
+	const CallableCustomMethodPointerBase *b = static_cast<const CallableCustomMethodPointerBase *>(p_b);
+
+	if (a->comp_size != b->comp_size) {
+		return false;
+	}
+
+	for (uint32_t i = 0; i < a->comp_size; i++) {
+		if (a->comp_ptr[i] != b->comp_ptr[i]) {
+			return false;
+		}
+	}
+
+	return true;
+}
+
+bool CallableCustomMethodPointerBase::compare_less(const CallableCustom *p_a, const CallableCustom *p_b) {
+
+	const CallableCustomMethodPointerBase *a = static_cast<const CallableCustomMethodPointerBase *>(p_a);
+	const CallableCustomMethodPointerBase *b = static_cast<const CallableCustomMethodPointerBase *>(p_b);
+
+	if (a->comp_size != b->comp_size) {
+		return a->comp_size < b->comp_size;
+	}
+
+	for (uint32_t i = 0; i < a->comp_size; i++) {
+		if (a->comp_ptr[i] == b->comp_ptr[i]) {
+			continue;
+		}
+
+		return a->comp_ptr[i] < b->comp_ptr[i];
+	}
+
+	return false;
+}
+
+CallableCustom::CompareEqualFunc CallableCustomMethodPointerBase::get_compare_equal_func() const {
+	return compare_equal;
+}
+
+CallableCustom::CompareLessFunc CallableCustomMethodPointerBase::get_compare_less_func() const {
+	return compare_less;
+}
+
+uint32_t CallableCustomMethodPointerBase::hash() const {
+	return h;
+}
+
+void CallableCustomMethodPointerBase::_setup(uint32_t *p_base_ptr, uint32_t p_ptr_size) {
+	comp_ptr = p_base_ptr;
+	comp_size = p_ptr_size / 4;
+
+	// Precompute hash.
+	for (uint32_t i = 0; i < comp_size; i++) {
+		if (i == 0) {
+			h = hash_djb2_one_32(comp_ptr[i]);
+		} else {
+			h = hash_djb2_one_32(comp_ptr[i], h);
+		}
+	}
+}