initial commit, 4.5 stable

drivers/metal/metal_utils.h

@@ -0,0 +1,113 @@
+/**************************************************************************/
+/*  metal_utils.h                                                         */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#import <os/log.h>
+
+#import <functional>
+
+#pragma mark - Boolean flags
+
+namespace flags {
+
+/*! Sets the flags within the value parameter specified by the mask parameter. */
+template <typename Tv, typename Tm>
+void set(Tv &p_value, Tm p_mask) {
+	using T = std::underlying_type_t<Tv>;
+	p_value = static_cast<Tv>(static_cast<T>(p_value) | static_cast<T>(p_mask));
+}
+
+/*! Clears the flags within the value parameter specified by the mask parameter. */
+template <typename Tv, typename Tm>
+void clear(Tv &p_value, Tm p_mask) {
+	using T = std::underlying_type_t<Tv>;
+	p_value = static_cast<Tv>(static_cast<T>(p_value) & ~static_cast<T>(p_mask));
+}
+
+/*! Returns whether the specified value has any of the bits specified in mask set to 1. */
+template <typename Tv, typename Tm>
+static constexpr bool any(Tv p_value, const Tm p_mask) {
+	return ((p_value & p_mask) != 0);
+}
+
+/*! Returns whether the specified value has all of the bits specified in mask set to 1. */
+template <typename Tv, typename Tm>
+static constexpr bool all(Tv p_value, const Tm p_mask) {
+	return ((p_value & p_mask) == p_mask);
+}
+
+} //namespace flags
+
+#pragma mark - Alignment and Offsets
+
+static constexpr bool is_power_of_two(uint64_t p_value) {
+	return p_value && ((p_value & (p_value - 1)) == 0);
+}
+
+static constexpr uint64_t round_up_to_alignment(uint64_t p_value, uint64_t p_alignment) {
+	DEV_ASSERT(is_power_of_two(p_alignment));
+
+	if (p_alignment == 0) {
+		return p_value;
+	}
+
+	uint64_t mask = p_alignment - 1;
+	uint64_t aligned_value = (p_value + mask) & ~mask;
+
+	return aligned_value;
+}
+
+class Defer {
+public:
+	Defer(std::function<void()> func) :
+			func_(func) {}
+	~Defer() { func_(); }
+
+private:
+	std::function<void()> func_;
+};
+
+#define CONCAT_INTERNAL(x, y) x##y
+#define CONCAT(x, y) CONCAT_INTERNAL(x, y)
+#define DEFER const Defer &CONCAT(defer__, __LINE__) = Defer
+
+extern os_log_t LOG_DRIVER;
+// Used for dynamic tracing.
+extern os_log_t LOG_INTERVALS;
+
+_FORCE_INLINE_ static uint32_t make_msl_version(uint32_t p_major, uint32_t p_minor = 0, uint32_t p_patch = 0) {
+	return (p_major * 10000) + (p_minor * 100) + p_patch;
+}
+
+_FORCE_INLINE_ static void parse_msl_version(uint32_t p_version, uint32_t &r_major, uint32_t &r_minor) {
+	r_major = p_version / 10000;
+	r_minor = (p_version % 10000) / 100;
+}