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WindowServer: Add initial support for rendering on multiple screens

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This allows WindowServer to use multiple framebuffer devices and
compose the desktop with any arbitrary layout. Currently, it is assumed
that it is configured contiguous and non-overlapping, but this should
eventually be enforced.

To make rendering efficient, each window now also tracks on which
screens it needs to be rendered. This way we don't have to iterate all
the windows for each screen but instead use the same rendering loop and
then only render to the screen (or screens) that the window actually
uses.
This commit is contained in:
Tom 2021-06-13 06:16:06 -06:00 • committed by Andreas Kling
parent 499c33ae0c
commit 4392da970a
42 changed files with 1127 additions and 563 deletions
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4
Userland/Services/WindowServer/WindowServer.ipc
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@ -93,7 +93,7 @@ endpoint WindowServer
set_background_color(String background_color) =|
set_wallpaper_mode(String mode) =|
set_resolution(Gfx::IntSize resolution, int scale_factor) => (bool success, Gfx::IntSize resolution, int scale_factor)
set_resolution(u32 screen_index, Gfx::IntSize resolution, int scale_factor) => (bool success, Gfx::IntSize resolution, int scale_factor)
set_window_icon_bitmap(i32 window_id, Gfx::ShareableBitmap icon) =|
get_wallpaper() => (String path)
@ -130,5 +130,5 @@ endpoint WindowServer
set_double_click_speed(int speed) => ()
get_double_click_speed() => (int speed)
get_desktop_display_scale() => (int desktop_display_scale)
get_desktop_display_scale(u32 screen_index) => (int desktop_display_scale)
}