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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 "Buffer.hpp"
Buffer::Buffer(vk::Device device, vk::DeviceSize size, vk::BufferUsageFlags usage)
: device(device)
, size(size)
{
vk::BufferCreateInfo bufferInfo{};
bufferInfo.size = size;
bufferInfo.usage = usage;
bufferInfo.sharingMode = vk::SharingMode::eExclusive;
buffer = device.createBuffer(bufferInfo);
auto memRequirements = device.getBufferMemoryRequirements(buffer);
vk::MemoryAllocateInfo allocInfo{};
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = 0; //TODO: getMemoryTypeIndex(memRequirements.memoryTypeBits, vk::MemoryPropertyFlagBits::eHostVisible | vk::MemoryPropertyFlagBits::eHostCoherent);
bufferMemory = device.allocateMemory(allocInfo);
device.bindBufferMemory(buffer, bufferMemory, 0);
}
Buffer::~Buffer()
{
device.freeMemory(bufferMemory);
device.destroyBuffer(buffer);
}