Code/Engine/RendererVulkan/Resources/Implementation/ReadbackBufferVulkan.cpp - dev - redgpu/ezEngine

Code/Engine/RendererVulkan/Resources/Implementation/ReadbackBufferVulkan.cpp

52 строки2 KB

Sanakan8472

Copy / Readback fixes (#1963)

11 июн 2026, 18:07

11 июн 2026, 18:07b50d6f1

#include <RendererVulkan/RendererVulkanPCH.h>

#include <RendererVulkan/Device/DeviceVulkan.h>
#include <RendererVulkan/Resources/BufferVulkan.h>
#include <RendererVulkan/Resources/ReadbackBufferVulkan.h>

ezGALReadbackBufferVulkan::ezGALReadbackBufferVulkan(const ezGALBufferCreationDescription& Description)
  : ezGALReadbackBuffer(Description)
{
}

ezGALReadbackBufferVulkan::~ezGALReadbackBufferVulkan() = default;

ezResult ezGALReadbackBufferVulkan::InitPlatform(ezGALDevice* pDevice)
{
  m_pDeviceVulkan = static_cast<ezGALDeviceVulkan*>(pDevice);

  vk::DeviceSize alignment = ezGALBufferVulkan::GetAlignment(m_pDeviceVulkan, vk::BufferUsageFlagBits::eTransferDst);
  m_Size = ezMemoryUtils::AlignSize((vk::DeviceSize)m_Description.m_uiTotalSize, alignment);

  vk::BufferCreateInfo bufferCreateInfo;
  bufferCreateInfo.usage = vk::BufferUsageFlagBits::eTransferDst;
  bufferCreateInfo.pQueueFamilyIndices = nullptr;
  bufferCreateInfo.queueFamilyIndexCount = 0;
  bufferCreateInfo.sharingMode = vk::SharingMode::eExclusive;
  bufferCreateInfo.size = m_Size;

  ezVulkanAllocationCreateInfo allocCreateInfo;
  allocCreateInfo.m_usage = ezVulkanMemoryUsage::Auto;
  allocCreateInfo.m_flags = ezVulkanAllocationCreateFlags::HostAccessRandom | ezVulkanAllocationCreateFlags::Mapped;

  VK_ASSERT_DEV(ezMemoryAllocatorVulkan::CreateBuffer(bufferCreateInfo, allocCreateInfo, m_Buffer, m_pAlloc, &m_AllocInfo));

  return EZ_SUCCESS;
}

ezResult ezGALReadbackBufferVulkan::DeInitPlatform(ezGALDevice* pDevice)
{
  if (m_Buffer)
  {
    m_pDeviceVulkan->DeleteLater(m_Buffer, m_pAlloc);
    m_AllocInfo = {};
  }
  m_Size = 0;
  m_pDeviceVulkan = nullptr;
  return EZ_SUCCESS;
}

void ezGALReadbackBufferVulkan::SetDebugNamePlatform(const char* szName) const
{
  m_pDeviceVulkan->SetDebugName(szName, m_Buffer, m_pAlloc);
}