staging_buffer::staging_buffer(renderer& renderer, size_t size) : _renderer(renderer)
{
auto device = _renderer.device();
_buffer = device.createBuffer(vk::BufferCreateInfo{ {}, size, vk::BufferUsageFlagBits::eTransferSrc, vk::SharingMode::eExclusive,0,nullptr });
auto mem_reqs = device.getBufferMemoryRequirements(_buffer);
_memory = device.allocateMemory(vk::MemoryAllocateInfo{ mem_reqs.size(), _renderer.find_adequate_memory(mem_reqs, vk::MemoryPropertyFlagBits::eHostVisible) });
device.bindBufferMemory(_buffer, _memory, 0);
_size = mem_reqs.size();
_mapped_memory = device.mapMemory(_memory, 0, mem_reqs.size(), {});
}
Buffer::Buffer (const DeviceInterface& vk,
const VkDevice device,
Allocator& allocator,
const VkBufferCreateInfo& bufferCreateInfo,
const MemoryRequirement memoryRequirement)
{
m_buffer = createBuffer(vk, device, &bufferCreateInfo);
m_allocation = allocator.allocate(getBufferMemoryRequirements(vk, device, *m_buffer), memoryRequirement);
VK_CHECK(vk.bindBufferMemory(device, *m_buffer, m_allocation->getMemory(), m_allocation->getOffset()));
}
Buffer (const vk::DeviceInterface& vk,
const vk::VkDevice device,
vk::Allocator& allocator,
const vk::VkBufferCreateInfo& bufferCreateInfo,
const vk::MemoryRequirement memoryRequirement)
: m_buffer (createBuffer(vk, device, &bufferCreateInfo))
, m_allocation (allocator.allocate(getBufferMemoryRequirements(vk, device, *m_buffer), memoryRequirement))
{
VK_CHECK(vk.bindBufferMemory(device, *m_buffer, m_allocation->getMemory(), m_allocation->getOffset()));
}
