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2022-03-11main: move til_init() to start of mainVito Caputo
Currently this was done rather late for vestigial pre-libtil reasons; it used to be a local function for specifically "create rendering threads" purpose. But it's rather awkward now to see such an initializer called late after myriad other til_* API is being used, and there's nothing gauranteeing til_init() will continue to strictly create rendering threads. Nothing is actually changing in what til_init() does here, it's just a cosmetic movement of the call site and s/librototiller/libtil/ in the error message.
2022-03-11main: simplify setup_from_args()Vito Caputo
Just removing some copy pasta from the error paths, nothing functionally different.
2021-10-03args: move argument parsing/help output to libtilVito Caputo
This is totally opt-in for libtil callers, but is a step towards enabling uniform cli invocations across frontends. The help side of this is particularly janky, but since what's appropriate there is directly related to the args parsing it seems appropriate to bring along. The janky part is the implicit output formatting assumptions being made, as-is it doesn't really lend itself well to being augmented into broader frontend help output. Alas, this is rototiller playground, so let's just go easy and assume frontends will largely spit out whatever this provides - or completely replace it if appropriate.
2021-10-01*: librototiller->libtilVito Caputo
Largely mechanical rename of librototiller -> libtil, but introducing a til_ prefix to all librototiller (now libtil) functions and types where a rototiller prefix was absent. This is just a step towards a more libized librototiller, and til is just a nicer to type/read prefix than rototiller_.
2021-02-14*: split rototiller.[ch] into lib and mainVito Caputo
This is a first approximation of separating the core modules and threaded rendering from the cli-centric rototiller program and its sdl+drm video backends. Unfortunately this seemed to require switching over to libtool archives (.la) to permit consolidating the per-lib and per-module .a files into the librototiller.a and linking just with librototiller.a to depend on the aggregate of libs+modules+librototiller-glue in a simple fashion. If an alternative to .la comes up I will switch over to it, using libtool really slows down the build process. Those are implementation/build system details though. What's important in these changes is establishing something resembling a librototiller API boundary, enabling creating alternative frontends which vendor this tree as a submodule and link just to librototiller.{la,a} for all the modules+threaded rendering of them, while providing their own fb_ops_t for outputting into, and their own settings applicators for driving the modules setup.
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