Module renderer 

Desktop Renderer

Connects the Wayland compositor’s back-buffer to the hardware framebuffer. Creates the initial desktop scene (background gradient, panel, terminal placeholder) and runs the compositing loop.

Includes server-side decoration (SSD) types and rendering functions that define the complete decoration API surface. Some items (hit-testing, button rendering) are not yet wired into the event dispatch path.

Structs

DecorationConfig

Window decoration rendering configuration.

Enums

BorderEdge

Which border edge was hit for resize operations.

DecorationButton

Buttons that can appear in the title bar.

DecorationHitTest

Result of hit-testing a point against window decorations.

Functions

create_app_surface

Create a compositor surface backed by a SHM pool + buffer.

draw_char_into_buffer

Draw a single 8x16 character into a BGRA pixel buffer.

draw_string_into_buffer

Draw a string into a BGRA pixel buffer at (px, py) with the given color.

draw_title_bar_into_surface

Draw a title bar (background + title text + close button) into a BGRA surface pixel buffer. The title bar occupies the top 28 rows of the buffer. The window’s title and focus state are read from the WM.

hit_test_decoration

Hit-test a point (relative to the window’s top-left including decorations) against the decoration regions.

render_decoration_button

Render a single decoration button (close, maximize, or minimize).

render_window_decoration

Render a complete window decoration frame into a pixel buffer.

start_desktop

Initialize the desktop environment and start the compositor.

update_surface_pixels

Update the pixel data for an app surface and request recomposite.