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D3D12: Added allow tearing support.

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This commit is contained in:
Branimir Karadžić 2018-03-02 17:57:50 -08:00
parent b4229e4a17
commit 0480b73b96
2 changed files with 29 additions and 5 deletions
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30
src/renderer_d3d12.cpp
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@ -433,6 +433,7 @@ namespace bgfx { namespace d3d12
static const GUID IID_IDXGIDevice3 = { 0x6007896c, 0x3244, 0x4afd, { 0xbf, 0x18, 0xa6, 0xd3, 0xbe, 0xda, 0x50, 0x23 } };
static const GUID IID_IDXGIFactory2 = { 0x50c83a1c, 0xe072, 0x4c48, { 0x87, 0xb0, 0x36, 0x30, 0xfa, 0x36, 0xa6, 0xd0 } };
static const GUID IID_IDXGIFactory4 = { 0x1bc6ea02, 0xef36, 0x464f, { 0xbf, 0x0c, 0x21, 0xca, 0x39, 0xe5, 0x16, 0x8a } };
static const GUID IID_IDXGIFactory5 = { 0x7632e1f5, 0xee65, 0x4dca, { 0x87, 0xfd, 0x84, 0xcd, 0x75, 0xf8, 0x83, 0x8d } };
static const GUID IID_IDXGIOutput6 = { 0x068346e8, 0xaaec, 0x4b84, { 0xad, 0xd7, 0x13, 0x7f, 0x51, 0x3f, 0x77, 0xa1 } };
@ -651,6 +652,7 @@ namespace bgfx { namespace d3d12
, m_backBufferColorIdx(0)
, m_rtMsaa(false)
, m_directAccessSupport(false)
, m_allowTearingSupport(false)
{
}
@ -764,7 +766,9 @@ namespace bgfx { namespace d3d12
HRESULT hr;
#if BX_PLATFORM_WINDOWS || BX_PLATFORM_WINRT
#if BX_PLATFORM_WINDOWS
hr = CreateDXGIFactory1(IID_IDXGIFactory5, (void**)&m_factory);
#elif BX_PLATFORM_WINRT
hr = CreateDXGIFactory1(IID_IDXGIFactory4, (void**)&m_factory);
#else
hr = S_OK;
@ -1016,6 +1020,15 @@ namespace bgfx { namespace d3d12
m_cmd.init(m_device);
errorState = ErrorState::CreatedCommandQueue;
#if BX_PLATFORM_WINDOWS
{
bool allowTearing;
hr = m_factory->CheckFeatureSupport(DXGI_FEATURE_PRESENT_ALLOW_TEARING, &allowTearing, sizeof(allowTearing) );
m_allowTearingSupport = SUCCEEDED(hr) ? allowTearing : false;
BX_TRACE("Allow tearing is %ssupported.", m_allowTearingSupport ? "" : "not ");
}
#endif // BX_PLATFORM_WINDOWS
if (NULL == g_platformData.backBuffer)
{
#if !BX_PLATFORM_WINDOWS
@ -1034,7 +1047,12 @@ namespace bgfx { namespace d3d12
;
m_scd.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
m_scd.AlphaMode = DXGI_ALPHA_MODE_IGNORE;
m_scd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
m_scd.Flags = 0
| DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH
#if BX_PLATFORM_WINDOWS
| (m_allowTearingSupport ? DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING : 0)
#endif // BX_PLATFORM_WINDOWS
;
m_backBufferColorIdx = m_scd.BufferCount-1;
@ -1099,7 +1117,12 @@ namespace bgfx { namespace d3d12
m_scd.OutputWindow = (HWND)g_platformData.nwh;
m_scd.Windowed = true;
m_scd.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
m_scd.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH;
m_scd.Flags = 0
| DXGI_SWAP_CHAIN_FLAG_ALLOW_MODE_SWITCH
#if BX_PLATFORM_WINDOWS
| (m_allowTearingSupport ? DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING : 0)
#endif // BX_PLATFORM_WINDOWS
;
BX_CHECK(m_scd.BufferCount <= BX_COUNTOF(m_backBufferColor), "Swap chain buffer count %d (max %d)."
, m_scd.BufferCount
@ -3344,6 +3367,7 @@ data.NumQualityLevels = 0;
uint32_t m_backBufferColorIdx;
bool m_rtMsaa;
bool m_directAccessSupport;
bool m_allowTearingSupport;
};
static RendererContextD3D12* s_renderD3D12;

4
src/renderer_d3d12.h
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@ -95,11 +95,11 @@ namespace bgfx { namespace d3d12
#if BX_PLATFORM_WINDOWS
typedef ::IDXGIAdapter3 AdapterI;
typedef ::IDXGIFactory4 FactoryI;
typedef ::IDXGIFactory5 FactoryI;
typedef ::IDXGISwapChain3 SwapChainI;
#elif BX_PLATFORM_WINRT
typedef ::IDXGIAdapter AdapterI;
typedef ::IDXGIFactory2 FactoryI;
typedef ::IDXGIFactory4 FactoryI;
typedef ::IDXGISwapChain1 SwapChainI;
#else
typedef ::IDXGIAdapter AdapterI;