mirror of
https://gitlab.freedesktop.org/mesa/vulkan-wsi-layer.git
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080d5d2bf7
Reduce the number of functions that are exported by the layer. This helps resolve dynamic linking issues where multiple functions are named the same in different shared libraries. Also add function specifiers and calling conventions to all extern "C" functions. Change-Id: I07b33ff8d066e33c5dbdf0cbc13aa7835a78220b Signed-off-by: Dennis Tsiang <dennis.tsiang@arm.com>
81 lines
2.6 KiB
C++
81 lines
2.6 KiB
C++
/*
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* Copyright (c) 2020-2021 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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#include "custom_allocator.hpp"
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#include "macros.hpp"
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#include <vulkan/vulkan.h>
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namespace util
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{
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VWL_VKAPI_CALL(void *) default_allocation(void *, size_t size, size_t, VkSystemAllocationScope) VWL_API_POST
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{
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return malloc(size);
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}
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VWL_VKAPI_CALL(void *)
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default_reallocation(void *, void *pOriginal, size_t size, size_t, VkSystemAllocationScope) VWL_API_POST
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{
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return realloc(pOriginal, size);
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}
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VWL_VKAPI_CALL(void) default_free(void *, void *pMemory) VWL_API_POST
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{
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free(pMemory);
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}
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const allocator& allocator::get_generic()
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{
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static allocator generic{ VK_SYSTEM_ALLOCATION_SCOPE_COMMAND, nullptr };
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return generic;
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}
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allocator::allocator(const allocator &other, VkSystemAllocationScope new_scope, const VkAllocationCallbacks *callbacks)
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: allocator{ new_scope, callbacks == nullptr ? other.get_original_callbacks() : callbacks }
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{
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}
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/* If callbacks is already populated by vulkan then use those specified as default. */
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allocator::allocator(VkSystemAllocationScope scope, const VkAllocationCallbacks *callbacks)
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{
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m_scope = scope;
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if (callbacks != nullptr)
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{
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m_callbacks = *callbacks;
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}
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else
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{
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m_callbacks = {};
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m_callbacks.pfnAllocation = default_allocation;
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m_callbacks.pfnReallocation = default_reallocation;
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m_callbacks.pfnFree = default_free;
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}
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}
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const VkAllocationCallbacks *allocator::get_original_callbacks() const
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{
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return m_callbacks.pfnAllocation == default_allocation ? nullptr : &m_callbacks;
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}
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} /* namespace util */
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