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// Copyright 2018 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "VkMemory.hpp"
#include "VkConfig.hpp"
#include "System/Memory.hpp"
namespace vk {
void *allocateDeviceMemory(size_t bytes, size_t alignment)
{
// TODO(b/140991626): Use allocateZeroOrPoison() instead of allocateZero() to detect MemorySanitizer errors.
#if defined(SWIFTSHADER_ZERO_INITIALIZE_DEVICE_MEMORY)
return sw::allocateZero(bytes, alignment);
#else
// TODO(b/140991626): Use allocateUninitialized() instead of allocateZeroOrPoison() to improve startup peformance.
return sw::allocateZeroOrPoison(bytes, alignment);
#endif
}
void freeDeviceMemory(void *ptr)
{
sw::freeMemory(ptr);
}
void *allocateHostMemory(size_t bytes, size_t alignment, const VkAllocationCallbacks *pAllocator, VkSystemAllocationScope allocationScope)
{
if(pAllocator)
{
return pAllocator->pfnAllocation(pAllocator->pUserData, bytes, alignment, allocationScope);
}
else
{
// TODO(b/140991626): Use allocateUninitialized() instead of allocateZeroOrPoison() to improve startup peformance.
return sw::allocateZeroOrPoison(bytes, alignment);
}
}
void freeHostMemory(void *ptr, const VkAllocationCallbacks *pAllocator)
{
if(pAllocator)
{
pAllocator->pfnFree(pAllocator->pUserData, ptr);
}
else
{
sw::freeMemory(ptr);
}
}
} // namespace vk