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82 lines
3.7 KiB
C++
82 lines
3.7 KiB
C++
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/**************************************************************************/
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/* metal_utils.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef METAL_UTILS_H
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#define METAL_UTILS_H
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#pragma mark - Boolean flags
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namespace flags {
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/*! Sets the flags within the value parameter specified by the mask parameter. */
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template <typename Tv, typename Tm>
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void set(Tv &p_value, Tm p_mask) {
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using T = std::underlying_type_t<Tv>;
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p_value = static_cast<Tv>(static_cast<T>(p_value) | static_cast<T>(p_mask));
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}
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/*! Clears the flags within the value parameter specified by the mask parameter. */
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template <typename Tv, typename Tm>
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void clear(Tv &p_value, Tm p_mask) {
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using T = std::underlying_type_t<Tv>;
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p_value = static_cast<Tv>(static_cast<T>(p_value) & ~static_cast<T>(p_mask));
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}
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/*! Returns whether the specified value has any of the bits specified in mask set to 1. */
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template <typename Tv, typename Tm>
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static constexpr bool any(Tv p_value, const Tm p_mask) { return ((p_value & p_mask) != 0); }
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/*! Returns whether the specified value has all of the bits specified in mask set to 1. */
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template <typename Tv, typename Tm>
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static constexpr bool all(Tv p_value, const Tm p_mask) { return ((p_value & p_mask) == p_mask); }
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} //namespace flags
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#pragma mark - Alignment and Offsets
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static constexpr bool is_power_of_two(uint64_t p_value) {
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return p_value && ((p_value & (p_value - 1)) == 0);
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}
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static constexpr uint64_t round_up_to_alignment(uint64_t p_value, uint64_t p_alignment) {
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DEV_ASSERT(is_power_of_two(p_alignment));
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if (p_alignment == 0) {
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return p_value;
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}
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uint64_t mask = p_alignment - 1;
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uint64_t aligned_value = (p_value + mask) & ~mask;
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return aligned_value;
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}
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#endif // METAL_UTILS_H
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