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Enable flip presentation mode and tearing in D3D11

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GoaLitiuM
2022-03-17 21:05:42 +02:00
committed by Ari Vuollet
parent b780e33a5b
commit e794911755
5 changed files with 36 additions and 1 deletions
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18
Source/Engine/GraphicsDevice/DirectX/DX11/GPUSwapChainDX11.cpp
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@@ -17,6 +17,8 @@ GPUSwapChainDX11::GPUSwapChainDX11(GPUDeviceDX11* device, Window* window)
#endif
, _swapChain(nullptr)
, _backBuffer(nullptr)
, _allowTearing(false)
, _isFullscreen(false)
{
ASSERT(_windowHandle);
_window = window;
@@ -108,6 +110,8 @@ void GPUSwapChainDX11::SetFullscreen(bool isFullscreen)
{
LOG(Warning, "Cannot change fullscreen mode for '{0}' to {1}.", ToString(), isFullscreen);
}
_isFullscreen = isFullscreen;
}
#else
LOG(Info, "Cannot change fullscreen mode on this platform");
@@ -123,7 +127,12 @@ void GPUSwapChainDX11::Present(bool vsync)
{
// Present frame
ASSERT(_swapChain);
const HRESULT result = _swapChain->Present(vsync ? 1 : 0, 0);
UINT presentFlags = 0;
if (!vsync && !_isFullscreen && _allowTearing)
{
presentFlags |= DXGI_PRESENT_ALLOW_TEARING;
}
const HRESULT result = _swapChain->Present(vsync ? 1 : 0, presentFlags);
LOG_DIRECTX_RESULT(result);
// Base
@@ -140,6 +149,7 @@ bool GPUSwapChainDX11::Resize(int32 width, int32 height)
_device->WaitForGPU();
GPUDeviceLock lock(_device);
_allowTearing = _device->AllowTearing;
_format = GPU_BACK_BUFFER_PIXEL_FORMAT;
#if PLATFORM_WINDOWS
@@ -177,6 +187,12 @@ bool GPUSwapChainDX11::Resize(int32 width, int32 height)
swapChainDesc.Windowed = TRUE;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
swapChainDesc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
if (_allowTearing)
{
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_DISCARD;
swapChainDesc.Flags |= DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING;
}
#else
swapChainDesc.Width = width;
swapChainDesc.Height = height;