2 * Copyright (c) 2020 Arm Limited.
4 * SPDX-License-Identifier: MIT
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 #include "custom_allocator.hpp"
29 static void *default_allocation(void *, size_t size, size_t, VkSystemAllocationScope)
34 static void *default_reallocation(void *, void *pOriginal, size_t size, size_t, VkSystemAllocationScope)
36 return realloc(pOriginal, size);
39 static void default_free(void *, void *pMemory)
48 /* If callbacks is already populated by vulkan then use those specified as default. */
49 allocator::allocator(const VkAllocationCallbacks *callbacks, VkSystemAllocationScope scope)
52 if (callbacks != nullptr)
54 m_callbacks = *callbacks;
59 m_callbacks.pfnAllocation = default_allocation;
60 m_callbacks.pfnReallocation = default_reallocation;
61 m_callbacks.pfnFree = default_free;
65 const VkAllocationCallbacks *allocator::get_original_callbacks() const
67 return m_callbacks.pfnAllocation == default_allocation ? nullptr : &m_callbacks;
70 } /* namespace util */