drm-composer 0.1.1

HTML-to-screen compiler for Raspberry Pi and embedded Linux: scene markup -> drm_screen layer commands + RGBA bitmaps

drm_composer

Stateless scene-to-screen-command compiler. Parses a declarative HTML-like scene, rasterizes elements to RGBA bitmaps, and emits commands for drm_screen.

Python package: drm_composer.

drm_composer  →  drm_screen  →  drm-display
 scene → cmds     layers →         frame →
 + RGBA bitmaps   composited       DRM/KMS
                  frame            pixels

• Parses screen / layer / box / text / img / raw-buffer
• Resolves layout (x, y, w, h, z, visibility)
• Rasterizes to RGBA bitmaps
• Translates layers into drm_screen commands

It holds no screen state, does not blend the final frame (that's drm_screen's compositor), and does not know DRM/KMS (that's drm_display).

Documentation

• SYNTAX.md — complete screen-HTML reference: every element, every attribute, accepted value formats, and behaviour. Start here to write scenes.
• outline.md — the design and where this package sits in the stack.

Install

pip install drm-composer    # also pulls in drm-screen and drm-display

Installing drm-composer brings the whole rendering chain with it — one install gets you HTML → screen.

Part of the drm_stack

Each package installs and runs on its own:

Package	Role
drm-composer	screen-HTML → layer commands · this package
drm-screen	layers → composited frame
drm-display	frame → DRM/KMS pixels

Full stack, bootstrap, and integration demo: drm_stack.

License

GPL-3.0-or-later (see LICENSE). Use it freely under the GPL. For proprietary/closed use that cannot comply with the GPL, a separate commercial license is available — contact Carsten Bund [e-mail].

Dependencies are permissive (BSD/MIT) and installed separately; their notices are in THIRD_PARTY_LICENSES.md.