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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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22
examples/example_win32_directx9/main.cpp
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@@ -15,6 +15,7 @@
// Data
static LPDIRECT3D9 g_pD3D = nullptr;
static LPDIRECT3DDEVICE9 g_pd3dDevice = nullptr;
static bool g_DeviceLost = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static D3DPRESENT_PARAMETERS g_d3dpp = {};
@@ -98,6 +99,20 @@ int main(int, char**)
if (done)
break;
// Handle lost D3D9 device
if (g_DeviceLost)
{
HRESULT hr = g_pd3dDevice->TestCooperativeLevel();
if (hr == D3DERR_DEVICELOST)
{
::Sleep(10);
continue;
}
if (hr == D3DERR_DEVICENOTRESET)
ResetDevice();
g_DeviceLost = false;
}
// Handle window resize (we don't resize directly in the WM_SIZE handler)
if (g_ResizeWidth != 0 && g_ResizeHeight != 0)
{
@@ -163,12 +178,11 @@ int main(int, char**)
g_pd3dDevice->EndScene();
}
HRESULT result = g_pd3dDevice->Present(nullptr, nullptr, nullptr, nullptr);
// Handle loss of D3D9 device
if (result == D3DERR_DEVICELOST && g_pd3dDevice->TestCooperativeLevel() == D3DERR_DEVICENOTRESET)
ResetDevice();
if (result == D3DERR_DEVICELOST)
g_DeviceLost = true;
}
// Cleanup
ImGui_ImplDX9_Shutdown();
ImGui_ImplWin32_Shutdown();
ImGui::DestroyContext();