3d2e35e003
The Ken Burns wallpaper pan and dim veil move to the GPU: the lock surface is wrapped in a wl_egl_window, the wallpaper is a textured quad whose shader applies the pan transform and veil (GPU bilinear makes sub-pixel panning free — the ~19ms/frame software bilinear is gone, idle CPU drops from 40% to ~0%), and the clock/pill/status chrome is still composed with tiny-skia and composited over. EGL init failure falls back to the fully-software path unchanged. Notable fixes along the way: - Text blending is now destination-aware: the old blend forced output alpha to 255, which is correct over the opaque background but made every glyph opaque in the chrome-only pixmap the GPU path composites. - wayland-client switches to its C backend for raw surface pointers, and khronos-egl/glow replace a hand-rolled EGL loader. Tests grew from 72 to 88: GPU pan_region parity with the software path (and edge/bounds/corner invariants), shader-uniform/EGL-attrib sanity, chrome bounding-rect tracking, and a pixel-level parity test proving the GPU split stays within double-rounding ULP range of the single-pass compose. |
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