diff options
Diffstat (limited to 'indra/llwindow/llwindowwin32.h')
| -rw-r--r-- | indra/llwindow/llwindowwin32.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/indra/llwindow/llwindowwin32.h b/indra/llwindow/llwindowwin32.h index d7fc715258..aab2635a34 100644 --- a/indra/llwindow/llwindowwin32.h +++ b/indra/llwindow/llwindowwin32.h @@ -172,6 +172,17 @@ protected: void handleCompositionMessage(U32 indexes); bool handleImeRequests(WPARAM request, LPARAM param, LRESULT *result); + // Additional function to request and hold a high-performance GPU on Windows 10+ + // + // Laptops can dynamically switch between integrated and discrete GPUs. + // The Viewer has gpu-specific optimizations, and this switching can cause problems and crashes. + // The login screen requires low performance, which can lead to the OS deciding to switch to the integrated GPU. + // To avoid this, we request and hold a high-performance GPU using A D3D11 context until login. + // For diagnostics, we also log GPU changes. + void requestHighPerformanceGPU() const; + bool detectGPUChange() const; + void clearHighPerformanceGPURequest() const; + protected: // // Platform specific methods |