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Examples: Win32+DX9,DX10,DX11,DX12: rework main loop to handle minimization and screen locking. (#2496, #3907, #6308, #7615)

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ocornut
2024-05-23 15:15:42 +02:00
parent 6d1a6f1c74
commit ec1d2be96f
5 changed files with 62 additions and 10 deletions
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15
examples/example_win32_directx11/main.cpp
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@@ -16,6 +16,7 @@
static ID3D11Device* g_pd3dDevice = nullptr;
static ID3D11DeviceContext* g_pd3dDeviceContext = nullptr;
static IDXGISwapChain* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static ID3D11RenderTargetView* g_mainRenderTargetView = nullptr;
@@ -100,6 +101,14 @@ int main(int, char**)
if (done)
break;
// Handle window being minimized or screen locked
if (g_SwapChainOccluded && g_pSwapChain->Present(0, DXGI_PRESENT_TEST) == DXGI_STATUS_OCCLUDED)
{
::Sleep(10);
continue;
}
g_SwapChainOccluded = false;
// Handle window resize (we don't resize directly in the WM_SIZE handler)
if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
{
@@ -158,8 +167,10 @@ int main(int, char**)
g_pd3dDeviceContext->ClearRenderTargetView(g_mainRenderTargetView, clear_color_with_alpha);
ImGui_ImplDX11_RenderDrawData(ImGui::GetDrawData());
g_pSwapChain->Present(1, 0); // Present with vsync
//g_pSwapChain->Present(0, 0); // Present without vsync
// Present
HRESULT hr = g_pSwapChain->Present(1, 0); // Present with vsync
//HRESULT hr = g_pSwapChain->Present(0, 0); // Present without vsync
g_SwapChainOccluded = (hr == DXGI_STATUS_OCCLUDED);
}
// Cleanup