kc3-lang/SDL

2021-02-25T19:22:31

KMSDRM: Add hint to enable the backend without DRM master In some cases, it can be useful to have the KMSDRM backend even if it cannot be used for rendering. An app may want to use SDL for input processing while using another rendering API (such as an MMAL overlay on Raspberry Pi) or using its own code to render to DRM overlays that SDL doesn't support. This also moves the check for DRM master to an earlier point where we can fail initialization of the backend, rather than allowing the backend to initialize then failing the creation of a window later.