Rename PHashTranslation to OptimizedTranslation

1 files changed, 89 insertions, 0 deletions

diff --git a/core/string/optimized_translation.h b/core/string/optimized_translation.h
new file mode 100644
index 0000000000..bccf932383
--- /dev/null
+++ b/core/string/optimized_translation.h
@@ -0,0 +1,89 @@
+/*************************************************************************/
+/*  optimized_translation.h                                              */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2021 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.                */
+/*************************************************************************/
+
+#ifndef OPTIMIZED_TRANSLATION_H
+#define OPTIMIZED_TRANSLATION_H
+
+#include "core/string/translation.h"
+
+class OptimizedTranslation : public Translation {
+	GDCLASS(OptimizedTranslation, Translation);
+
+	//this translation uses a sort of modified perfect hash algorithm
+	//it requires hashing strings twice and then does a binary search,
+	//so it's slower, but at the same time it has an extreemly high chance
+	//of catching untranslated strings
+
+	//load/store friendly types
+	Vector<int> hash_table;
+	Vector<int> bucket_table;
+	Vector<uint8_t> strings;
+
+	struct Bucket {
+		int size;
+		uint32_t func;
+
+		struct Elem {
+			uint32_t key;
+			uint32_t str_offset;
+			uint32_t comp_size;
+			uint32_t uncomp_size;
+		};
+
+		Elem elem[1];
+	};
+
+	_FORCE_INLINE_ uint32_t hash(uint32_t d, const char *p_str) const {
+		if (d == 0) {
+			d = 0x1000193;
+		}
+		while (*p_str) {
+			d = (d * 0x1000193) ^ uint32_t(*p_str);
+			p_str++;
+		}
+
+		return d;
+	}
+
+protected:
+	bool _set(const StringName &p_name, const Variant &p_value);
+	bool _get(const StringName &p_name, Variant &r_ret) const;
+	void _get_property_list(List<PropertyInfo> *p_list) const;
+	static void _bind_methods();
+
+public:
+	virtual StringName get_message(const StringName &p_src_text, const StringName &p_context = "") const override; //overridable for other implementations
+	virtual StringName get_plural_message(const StringName &p_src_text, const StringName &p_plural_text, int p_n, const StringName &p_context = "") const override;
+	void generate(const Ref<Translation> &p_from);
+
+	OptimizedTranslation() {}
+};
+
+#endif // OPTIMIZED_TRANSLATION_H