mirror of
https://gitlab.freedesktop.org/mesa/vulkan-wsi-layer.git
synced 2025-12-20 05:40:10 +01:00
5dbb34a16d
Ensure the move-assignment operator in swapchain_wsialloc_allocator returns *this on all code paths. This avoids undefined behavior and satisfies the function’s return type requirements. Signed-off-by: Maged Elnaggar <maged.elnaggar@arm.com> Change-Id: I99762484d7a02c24a4632a7a84b415a3842d02a3
108 lines
No EOL
2.8 KiB
C++
108 lines
No EOL
2.8 KiB
C++
/*
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* Copyright (c) 2025 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* 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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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/**
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* @file wsi_alloc_utils.hpp
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*/
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#pragma once
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#include <optional>
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#include "util/wsialloc/wsialloc.h"
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#include <util/helpers.hpp>
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#include "util/custom_allocator.hpp"
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#include <vulkan/vulkan.h>
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namespace wsi
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{
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struct allocation_params
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{
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bool is_protected_memory;
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VkExtent3D extent;
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util::vector<wsialloc_format> &importable_formats;
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bool enable_fixed_rate;
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bool avoid_allocation;
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};
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class swapchain_wsialloc_allocator
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{
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public:
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static std::optional<swapchain_wsialloc_allocator> create();
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swapchain_wsialloc_allocator(swapchain_wsialloc_allocator &other) = delete;
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swapchain_wsialloc_allocator &operator=(swapchain_wsialloc_allocator &other) = delete;
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swapchain_wsialloc_allocator(swapchain_wsialloc_allocator &&other)
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: m_allocator(other.m_allocator)
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{
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other.m_allocator = nullptr;
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}
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swapchain_wsialloc_allocator &operator=(swapchain_wsialloc_allocator &&other)
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{
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if (this == &other)
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{
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return *this;
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}
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if (m_allocator != nullptr)
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{
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wsialloc_delete(m_allocator);
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m_allocator = nullptr;
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}
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std::swap(m_allocator, other.m_allocator);
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return *this;
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}
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~swapchain_wsialloc_allocator()
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{
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if (m_allocator != nullptr)
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{
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wsialloc_delete(m_allocator);
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}
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}
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wsialloc_allocator *get()
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{
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return m_allocator;
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}
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VkResult allocate(const allocation_params &input, wsialloc_allocate_result *alloc_result);
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private:
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/**
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* @brief Handle to the WSI allocator.
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*/
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wsialloc_allocator *m_allocator;
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swapchain_wsialloc_allocator(wsialloc_allocator *allocator)
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: m_allocator(allocator)
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{
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}
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};
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} /* namespace wsi */ |