void FD3D12CommandContext::RHIBeginFrame()
{
check(IsDefaultContext());
RHIPrivateBeginFrame();
FD3D12Device* Device = GetParentDevice();
FD3D12GlobalOnlineHeap& SamplerHeap = Device->GetGlobalSamplerHeap();
const uint32 NumContexts = Device->GetNumContexts();
if (SamplerHeap.DescriptorTablesDirty())
{
//Rearrange the set for better look-up performance
SamplerHeap.GetUniqueDescriptorTables().Compact();
}
for (uint32 i = 0; i < NumContexts; ++i)
{
Device->GetCommandContext(i).StateCache.GetDescriptorCache()->BeginFrame();
}
Device->GetGlobalSamplerHeap().ToggleDescriptorTablesDirtyFlag(false);
UniformBufferBeginFrame();
OwningRHI.GPUProfilingData.BeginFrame(&OwningRHI);
}
void FD3D12CommandContext::RHIEndFrame()
{
check(IsDefaultContext());
OwningRHI.GPUProfilingData.EndFrame();
FD3D12Device* Device = GetParentDevice();
Device->FirstFrameSeen = true;
Device->GetDeferredDeletionQueue().ReleaseResources();
Device->GetDefaultBufferAllocator().CleanupFreeBlocks();
const uint32 NumContexts = Device->GetNumContexts();
for (uint32 i = 0; i < NumContexts; ++i)
{
Device->GetCommandContext(i).EndFrame();
}
Device->GetDefaultUploadHeapAllocator().CleanUpAllocations();
Device->GetTextureAllocator().CleanUpAllocations();
Device->GetDefaultBufferAllocator().CleanupFreeBlocks();
Device->GetDefaultFastAllocatorPool().CleanUpPages(10);
{
FScopeLock Lock(Device->GetBufferInitFastAllocator().GetCriticalSection());
Device->GetBufferInitFastAllocatorPool().CleanUpPages(10);
}
// The Texture streaming threads share a pool
{
FD3D12ThreadSafeFastAllocator* pCurrentHelperThreadDynamicHeapAllocator = nullptr;
for (uint32 i = 0; i < FD3D12DynamicRHI::GetD3DRHI()->NumThreadDynamicHeapAllocators; ++i)
{
pCurrentHelperThreadDynamicHeapAllocator = FD3D12DynamicRHI::GetD3DRHI()->ThreadDynamicHeapAllocatorArray[i];
if (pCurrentHelperThreadDynamicHeapAllocator)
{
FScopeLock Lock(pCurrentHelperThreadDynamicHeapAllocator->GetCriticalSection());
pCurrentHelperThreadDynamicHeapAllocator->GetPool()->CleanUpPages(10);
break;
}
}
}
#if SUPPORTS_MEMORY_RESIDENCY
GetResourceResidencyManager().Process();
#endif
DXGI_QUERY_VIDEO_MEMORY_INFO LocalVideoMemoryInfo;
FD3D12DynamicRHI::GetD3DRHI()->GetLocalVideoMemoryInfo(&LocalVideoMemoryInfo);
int64 budget = LocalVideoMemoryInfo.Budget;
int64 AvailableSpace = budget - int64(LocalVideoMemoryInfo.CurrentUsage);
SET_MEMORY_STAT(STAT_D3D12UsedVideoMemory, LocalVideoMemoryInfo.CurrentUsage);
SET_MEMORY_STAT(STAT_D3D12AvailableVideoMemory, AvailableSpace);
SET_MEMORY_STAT(STAT_D3D12TotalVideoMemory, budget);
}