Add Wayland + Vulkan WSI support#64
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Enables native Wayland rendering via Qt Wayland platform plugin and Vulkan KHR_wayland_surface. Previously Dolphin forced XCB even when QT_QPA_PLATFORM=wayland was set and had no Wayland surface creation path in the Vulkan backend. - CMake: ENABLE_WAYLAND option, pkg_check_modules for wayland-client - Vulkan: VK_USE_PLATFORM_WAYLAND_KHR, instance extension, vkCreateWaylandSurfaceKHR entry point, surface creation, UINT32_MAX currentExtent handling for compositor-driven sizing - Qt: removed forced xcb override, isExposed()-gated initial sizing for async Wayland configure, screen-size fallback - Presenter: SetSurfaceDimensions bridge for compositor-triggered window resize propagation to the swap chain - RenderWidget: removed stale SizeChanged emit in showFullScreen (fires before compositor configure on Wayland)
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Enables native Wayland rendering via Qt Wayland platform plugin and Vulkan KHR_wayland_surface. Previously Dolphin forced XCB even when QT_QPA_PLATFORM=wayland was set and had no Wayland surface creation path in the Vulkan backend.
This provides a future proof path for presentation on Linux without disabling x11 or xwayland support. This means real support for tearing/VRR with VK_PRESENT_MODE_IMMEDIATE_KHR via tearing_control_v1 protocol as well. From my testing on Fedora Rawhide melee runs great on both Plasma and Sway and there doesn't seem to be any issues with the Qt UI.