Code/Engine/RendererCore/Meshes/Implementation/CpuMeshResource.cpp - dev - redgpu/ezEngine

Code/Engine/RendererCore/Meshes/Implementation/CpuMeshResource.cpp

88 строк2 KB

Jan Krassnigg

Added ezRandomPrefabComponent (#1434)

21 ноя 2024, 23:05

21 ноя 2024, 23:05fd1dc94

#include <RendererCore/RendererCorePCH.h>

#include <Foundation/Utilities/AssetFileHeader.h>
#include <RendererCore/Meshes/CpuMeshResource.h>

// clang-format off
EZ_BEGIN_DYNAMIC_REFLECTED_TYPE(ezCpuMeshResource, 1, ezRTTIDefaultAllocator<ezCpuMeshResource>)
EZ_END_DYNAMIC_REFLECTED_TYPE;

EZ_RESOURCE_IMPLEMENT_COMMON_CODE(ezCpuMeshResource);
// clang-format on

ezCpuMeshResource::ezCpuMeshResource()
  : ezResource(DoUpdate::OnAnyThread, 1)
{
}

ezResourceLoadDesc ezCpuMeshResource::UnloadData(Unload WhatToUnload)
{
  ezResourceLoadDesc res;
  res.m_State = GetLoadingState();
  res.m_uiQualityLevelsDiscardable = GetNumQualityLevelsDiscardable();
  res.m_uiQualityLevelsLoadable = GetNumQualityLevelsLoadable();

  // we currently can only unload the entire mesh
  // if (WhatToUnload == Unload::AllQualityLevels)
  {
    m_Descriptor.Clear();

    res.m_uiQualityLevelsDiscardable = 0;
    res.m_uiQualityLevelsLoadable = 0;
    res.m_State = ezResourceState::Unloaded;
  }

  return res;
}

ezResourceLoadDesc ezCpuMeshResource::UpdateContent(ezStreamReader* Stream)
{
  ezMeshResourceDescriptor desc;
  ezResourceLoadDesc res;
  res.m_uiQualityLevelsDiscardable = 0;
  res.m_uiQualityLevelsLoadable = 0;

  if (Stream == nullptr)
  {
    res.m_State = ezResourceState::LoadedResourceMissing;
    return res;
  }

  // the standard file reader writes the absolute file path into the stream
  ezStringBuilder sAbsFilePath;
  (*Stream) >> sAbsFilePath;

  ezAssetFileHeader AssetHash;
  AssetHash.Read(*Stream).IgnoreResult();

  if (m_Descriptor.Load(*Stream).Failed())
  {
    res.m_State = ezResourceState::LoadedResourceMissing;
    return res;
  }

  res.m_State = ezResourceState::Loaded;
  return res;
}

void ezCpuMeshResource::UpdateMemoryUsage(MemoryUsage& out_NewMemoryUsage)
{
  out_NewMemoryUsage.m_uiMemoryCPU = sizeof(ezCpuMeshResource);
  out_NewMemoryUsage.m_uiMemoryGPU = 0;
}

EZ_RESOURCE_IMPLEMENT_CREATEABLE(ezCpuMeshResource, ezMeshResourceDescriptor)
{
  m_Descriptor = descriptor;

  ezResourceLoadDesc res;
  res.m_uiQualityLevelsDiscardable = 0;
  res.m_uiQualityLevelsLoadable = 0;
  res.m_State = ezResourceState::Loaded;

  return res;
}



EZ_STATICLINK_FILE(RendererCore, RendererCore_Meshes_Implementation_CpuMeshResource);