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| author | Yong He <yonghe@outlook.com> | 2022-02-23 10:30:19 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-02-23 10:30:19 -0800 |
| commit | 393d5beb1e0e71e6f2a384c9ab19b717f389a056 (patch) | |
| tree | 1341fcdf592127f5e78054c73e8cb032381a0b56 /tools/gfx/d3d | |
| parent | c4790309ec46ae2f4f7c49eb50699a950ee7a9a4 (diff) | |
gfx: d3d12 performance optimizations. (#2140)
* gfx: d3d12 performance optimizations.
* Fix.
* Fix unit test bug.
* Add gfx interface for directly allocating GPU descriptor tables.
Co-authored-by: Yong He <yhe@nvidia.com>
Diffstat (limited to 'tools/gfx/d3d')
| -rw-r--r-- | tools/gfx/d3d/d3d-swapchain.h | 35 |
1 files changed, 2 insertions, 33 deletions
diff --git a/tools/gfx/d3d/d3d-swapchain.h b/tools/gfx/d3d/d3d-swapchain.h index 1c29b2039..36a35f754 100644 --- a/tools/gfx/d3d/d3d-swapchain.h +++ b/tools/gfx/d3d/d3d-swapchain.h @@ -87,20 +87,6 @@ public: SLANG_RETURN_ON_FAIL(swapChain1->QueryInterface(m_swapChain.writeRef())); } - if (!desc.enableVSync) - { - m_swapChainWaitableObject = m_swapChain->GetFrameLatencyWaitableObject(); - - int maxLatency = desc.imageCount - 2; - - // Make sure the maximum latency is in the range required by dx runtime - maxLatency = (maxLatency < 1) ? 1 : maxLatency; - maxLatency = (maxLatency > DXGI_MAX_SWAP_CHAIN_BUFFERS) ? DXGI_MAX_SWAP_CHAIN_BUFFERS - : maxLatency; - - m_swapChain->SetMaximumFrameLatency(maxLatency); - } - createSwapchainBufferImages(); return SLANG_OK; } @@ -113,25 +99,9 @@ public: } virtual SLANG_NO_THROW Result SLANG_MCALL present() override { - if (m_swapChainWaitableObject) + if (SLANG_FAILED(m_swapChain->Present(m_desc.enableVSync ? 1 : 0, 0))) { - // check if now is good time to present - // This doesn't wait - because the wait time is 0. If it returns WAIT_TIMEOUT it - // means that no frame is waiting to be be displayed so there is no point doing a - // present. - const bool shouldPresent = - (WaitForSingleObjectEx(m_swapChainWaitableObject, 0, TRUE) != WAIT_TIMEOUT); - if (shouldPresent) - { - m_swapChain->Present(0, 0); - } - } - else - { - if (SLANG_FAILED(m_swapChain->Present(1, 0))) - { - return SLANG_FAIL; - } + return SLANG_FAIL; } return SLANG_OK; } @@ -171,7 +141,6 @@ public: virtual IDXGIFactory* getDXGIFactory() = 0; virtual IUnknown* getOwningDevice() = 0; ISwapchain::Desc m_desc; - HANDLE m_swapChainWaitableObject = nullptr; ComPtr<IDXGISwapChain2> m_swapChain; Slang::ShortList<Slang::RefPtr<TextureResource>> m_images; }; |