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// Copyright 2021 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 "VkDeviceMemoryExternalHost.hpp"
ExternalMemoryHost::AllocateInfo::AllocateInfo(const vk::DeviceMemory::ExtendedAllocationInfo &extendedAllocationInfo)
{
if(extendedAllocationInfo.importMemoryHostPointerInfo)
{
if((extendedAllocationInfo.importMemoryHostPointerInfo->handleType != VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_ALLOCATION_BIT_EXT) &&
(extendedAllocationInfo.importMemoryHostPointerInfo->handleType != VK_EXTERNAL_MEMORY_HANDLE_TYPE_HOST_MAPPED_FOREIGN_MEMORY_BIT_EXT))
{
UNSUPPORTED("extendedAllocationInfo.importMemoryHostPointerInfo->handleType, %d",
int(extendedAllocationInfo.importMemoryHostPointerInfo->handleType));
}
hostPointer = extendedAllocationInfo.importMemoryHostPointerInfo->pHostPointer;
supported = true;
}
}
bool ExternalMemoryHost::SupportsAllocateInfo(const vk::DeviceMemory::ExtendedAllocationInfo &extendedAllocationInfo)
{
AllocateInfo info(extendedAllocationInfo);
return info.supported;
}
ExternalMemoryHost::ExternalMemoryHost(const VkMemoryAllocateInfo *pCreateInfo, void *mem, const DeviceMemory::ExtendedAllocationInfo &extendedAllocationInfo, vk::Device *pDevice)
: vk::DeviceMemory(pCreateInfo, pDevice)
, allocateInfo(extendedAllocationInfo)
{}
VkResult ExternalMemoryHost::allocateBuffer()
{
if(allocateInfo.supported)
{
buffer = allocateInfo.hostPointer;
return VK_SUCCESS;
}
return VK_ERROR_INVALID_EXTERNAL_HANDLE;
}
void ExternalMemoryHost::freeBuffer()
{}
VkExternalMemoryHandleTypeFlagBits ExternalMemoryHost::getFlagBit() const
{
return typeFlagBit;
}