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2022-07-18til: wire seed up to til randomizersVito Caputo
til_setting_desc_t.random() and til_module_randomize_setup() now take seeds. Note they are not taking a pointer to a shared seed, but instead receive the seed by value. If a caller wishes the seed to evolve on every invocation into these functions, it should simply insert a rand_r(&seed) in producing the supplied seed value. Within a given randomizer, the seed evolves when appropriate. But isolating the effects by default seems appropriate, so callers can easily have determinism within their respective scope regardless of how much nested random use occurs.
2022-07-15til_fb: switch til_fb_ops_t.init() to use til_setup_tVito Caputo
Until now the fb init has been receiving a til_settings_t to access its setup. Now that there's a til_setup_t for representing the fully baked setup, let's bring the fb stuff up to speed so their init() behaves more like til_module_t.create_context() WRT settings/setup. This involves some reworking of how settings are handled in {drm,sdl}_fb.c but nothing majorly different. The only real funcitonal change that happened in the course of this work is I made it possible now to actually instruct SDL to do a more legacy SDL_WINDOW_FULLSCREEN vs. SDL_WINDOW_FULLSCREEN_DESKTOP where SDL will attempt to switch the video mode. This is triggered by specifying both a size=WxH and fullscreen=on for video=sdl. Be careful though, I've observed some broken display states when specifying goofy sizes, which look like Xorg bugs.
2022-03-28til_settings: provide a user_data pointer w/til_setting_tVito Caputo
Particularly in implementing a stateful/"retained" GUI it can be desirable to embed something like a widget pointer in a til_setting_t once described and shown to the user. Management of this pointer is largely nonexistant from the libtil perspective. It's simply initialized to NULL when a new setting is added, and never accessed again. 100% the caller's responsibility. This works fine since libtil/til_settings_t only accumulates til_setting_t entries and never removes them except when discarding an entire til_settings_t wholesale.
2022-03-19*: de-constify til_setting_t throughoutVito Caputo
Now that til_setting_t.desc is not only a thing, but a thing that is intended to be refreshed regularly in the course of things like GUI interactive settings construction, it's not really appropriate to try even act like this these are const anymore.
2022-03-19til_settings: introduce til_settings_reset_descs()Vito Caputo
This is helpful for forcing underlying setup methods to redescribe their settings, regardless of what a til_settings_t's internal state is.
2022-03-12til_settings: always describe relevant settingsVito Caputo
The existing iterative *_setup() interface only described settings not found, quietly accepting usable settings already present in the til_settings_t. This worked fine for the existing interactive text setup thing, but it's especially problematic for providing a GUI setup frontend. This commit makes it so the *_setup() methods always describe undescribed settings they recognize, leaving the setup frontend loop calling into the *_setup() methods to both apply the description validation if wanted and actually tie the description to respective setting returned by the _setup() methods as being related to the returned description. A new helper called til_settings_get_and_describe_value() has been introduced primarily for use of module setup methods to simplify this nonsense, replacing the til_settings_get_value() calls and surrounding logic, but retaining the til_setting_desc_t definitions largely verbatim. This also results in discarding of some ad-hoc til_setting_desc_check() calls, now that there's a centralized place where settings become "described" (setup_interactively in the case of rototiller). Now a GUI frontend (like glimmer) would just provide its own setup_interactively() equivalent for constructing its widgets for a given *_setup() method's chain of returned descs. Whereas in the past this wasn't really feasible unless there was never going to be pre-supplied settings. I suspect the til_setting_desc_check() integration into setup_interactively() needs more work, but I think this is good enough for now and I'm out of spare time for the moment.
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_.
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