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path: root/src/modules/compose/compose.c
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2023-11-21modules/{compose,mixer}: more TIL_MODULE_AUDIO_ONLY exceptsVito Caputo
These were missed by 6c657a9
2023-11-14modules/compose: trivial cleanupsVito Caputo
Replace vestigial casted setup dereferences with already present local typed setup variable.
2023-11-06modules/compose: handle layers/texture create failuresVito Caputo
Some trivial error handling improvements for compose... til_module_t.create_context() should really return -errno instead, since some modules try do stuff like opening files or network connections @ create_context().
2023-10-11modules/compose: don't use *res_setting for textureVito Caputo
This is vestigial from pre-everything's-til_setting_t days, where the local setting values were just the bare char* value, requiring getting at the related til_setting_t via *res_setting. Now that's unnecessary since the local texture variable is now a til_setting_t*, so clean this bit up.
2023-08-31modules/*: use til_setup_free_with_ret_err() where aproposVito Caputo
Just some more res_setup baking failure path cleanups, largely mechanical change.
2023-08-30modules/compose: switch to til_settings_get_and_describe_setting()Vito Caputo
compose_setup() doesn't have any res_setup baking -EINVAL error paths, but still transition over to enable potentially deprecating the value-oriented variant. What error paths it does have during res_setup baking is nested in the underlying tile's module setup, and that should be propagating up any -EINVAL failures with the res_setting already populated.
2023-08-14modules/compose: exclude compose from layersVito Caputo
This was prevented before but lost in the shift to til_module_setup_full() wrappers...
2023-08-05modules/compose: til_module_setup_full() layers=/texture=Vito Caputo
Switch to til_module_setup_full() for handling the module setup of the individual layer module settings as well as the texture. Since compose served as the development mule for adding nested settings, there was a lot of verbose comments that no longer seemed necessary since much of the dust has settled. The separate compose_layer_module_setup() and compose_texture_module_setup() wrappers feel a bit like copy-pasta too. I'm tempted to stop using these and just open code the til_module_setup_full() calls, except they get performed twice due to the split finalize, so it's probably still a net win as-is.
2023-08-05modules/{compose,montage,rtv}: exclude builtinsVito Caputo
Basically everywhere the TIL_MODULE_HERMETIC|TIL_MODULE_EXPERIMENTAL exclusions were being applied needed TIL_MODULE_BUILTIN added. Mostly this is to prevent randomizers from tripping over builtins in the available modules lists they draw from. Because builtins aren't visually interesting by themselves, and in some cases don't currently even have a means of being randomized properly like ref's path setting. This wasn't needed previously since builtins were kept off the modules list altogether. But since 1a6210be that changed and they must be explicitly filtered by flag instead. Note I deliberately left the rkt case with just a TODO comment. It's not a randomizer situation, and it might be acceptable to let rkt just show everything all the time in the module lists. That whole situation there is for advanced users. Also note that without this, rtv et al would easily trigger an assert on NULL setup due to the "none" builtin. Since there's still work to be done there in callers properly handling NULL @res_setup on a successful finalize. But this commit mitigates that by avoiding the builtins in the randomizers.
2023-08-05til_setup,*: add til_setup_t.creator pointerVito Caputo
Particularly with nested modules it's annoying to have to stow the module separate from the setup during the setup process. If the baked setup included the module pointer in the non-module-specific-setup part of the setup, then nested settings could finalize using the generic module setup wrapper and just rely on this til_setup_t.creator pointer to contain the appropriate module. Which should enable tossing out a bunch of copy-n-pasta surrounding nested modules setup. Note this has to be a void* since til_setup_t is a generic thing used equally by both the fb code and the module code. Hence why this is called "creator" and not "module", as well as the void* as opposed to til_module_t*. Also if rototiller ever grows a sound backend, the setup machinery will be reused there as well, and it'll be yet another creator handle that isn't an til_fb_ops_t or a til_module_t. It's assumed that the callers producing these setups won't be trying to pass them to the wrong places i.e. a module setup getting passed to an fb backend and vice versa. I'm mildly annoyed about having to move the various til_module_t blocks to above the module's foo_setup(), but it seemed like the least annoying option. This may be revisited.
2023-07-04modules/*: return invalid setting on -EINVAL in setupVito Caputo
In the interests of improving error handling of interactive setups, return the setting that was invalid when setup returns -EINVAL. For now this is only supported for non-finalized/non-baking setup calls, i.e. (!res_setup). In the future I want this also supported for finalizing when res_setup is set. A lot of the -EINVAL returns are actually during that stage (or need to be added) due to that being when the more sensitive parsing occurs going from strings to native numeric types and such. The main reason it's not already being done in this commit is it'll churn quite a bit to get there, since the setup funcs don't generally have the setting pointers onhand at that phase. It'll require changing the string-value-centric local variables to instead all be the til_setting_t* holding those values. And if setup funcs aren't going to be so value-centric, the settings API will likely change to not even return the values directly anymore and only return the full-blown til_settings_t as the main return pointer, perhaps rid of their res_setting use even. Anyway, while here I did some random little cleanups too.
2023-06-11modules/compose: destroy_context() can't get passed NULLVito Caputo
The modules don't have to defend against this, vestigial from simpler times
2023-06-09modules/compose: remove some vestigial junkVito Caputo
compose must have been derived from rtv originally, which uses txt.h.
2023-06-06modules/compose: remove vestigial TODO commentsVito Caputo
These are already reality as of late
2023-06-03modules/compose: drop redundant til_module_t*Vito Caputo
Once til_module_context_t.module was introduced, this vestigial module member @ compose_layer_t.module became redundant. So here it's dropped in the obvious manner, but the compose_layer_t struct is retained despite only having til_module_context_t* now. This is in anticipation of future additions where compose settings may set per-layer/texture rendering behaviors (think alpha, colors, texturing toggles, etc)
2023-05-30til,*: pivot to til_setup_t for context pathsVito Caputo
This changes til_setup_t* from optional to required for til_module_context_t creation, while dropping the separate path parameter construction and passing throughout.
2023-05-30modules/*: utilize til_module_setup_finalize()Vito Caputo
This replaces the few ad-hoc til_module_t.setup() setup-baking callers with the new til_module_setup_finalize() which always produces a til_setup_t having an appropriate path, even when there is no til_module_t.setup() method.
2023-05-28til_setup,*: note settings path in til_setup_tVito Caputo
This commit adds passing the settings instance to til_setup_new() which is used for deriving a path for the setup via til_settings_print_path() on the supplied settings. That path gets an allocated copy left in the returned til_setup_t at til_setup_t.path This path will exist for the lifetime of the til_setup_t, to be freed along with the rest of the baked setup instance when the refcount reaches 0. The incoming til_settings_t is only read @ til_setup_new() in constructing the path, no reference is kept. Basically the til_settings_t* is just passed in for convenience reasons, since constructing the path needs memory and may fail, this approach lets the existing til_setup_new() call error handling also capture the path allocation failures as-is turning til_setup_new() into a bit more of a convenience helper. Note that now all code may assume a til_setup_t has a set and valid til_setup_t.path, which should be useful for context creates when a setup is available.
2023-05-27modules/compose: trivial indentation fixupVito Caputo
2023-05-26til_settings: add til_setting_spec_t.as_labelVito Caputo
Currently settings instances get labels from three sources: 1. explicitly labeled by a root-level til_settings_new() call, like main.c::til_settings_new(NULL, "video", args->video); 2. implicitly labeled in a spec.as_nested_settings w/spec.key 3. positionally labeled in a spec.as_nested_settings w/o spec.key But when constructing setting/desc paths, using strictly these settings instance labels as the "directory name path component" equivalent, leaves something to be desired. Take this hypothetical module setting path for example: /module/layers/[0]/viscosity Strictly using settings instance labels as-is, the above is what you'd get for the drizzle::viscosity setting in something like: --module=compose,layers=drizzle Which is really awkward. What's really desired is more like: /module/compose/layers/[0]/drizzle/viscosity Now one way to achieve that is to just create more settings instances to hold these module names as labels and things would Just Work more or less. But that would be rather annoying and heavyweight, when what's _really_ wanted is a way to turn the first entry's value of a given setting instance into a sort of synthetic directory component in the path. So that's what this commit does. When a spec has .as_label specified, it's saying that path construction should treat this setting's value as if it were a label on a settings instance. But it's special cased to only apply to descs hanging off the first entry of a settings instance, as that's the only scenario we're making use of, and it avoids having to do crazy things like search all the entries for specs w/.as_label set. It feels a bit janky but it does achieve what's needed with little pain/churn.
2023-05-26modules/compose: desc the layer and texture module name settingsVito Caputo
Like modules/checkers required for fill_module, we need to do the same for for compose. It's a little more weird in compose since compose::layers is a nested settings full of unnamed nested settings. But compose::texture is analogous to checkers::fill_module.
2023-05-11modules/compose: settings-ize layers and textureVito Caputo
Now layers= is a settings instance. Each individual setting within that layers instance is also a settings instance of its own. This enables specifying the modules used in the layers as well as settings to be passed into those per-layer modules. The escaping quickly becomes brutal if hand-constructing, but programmatically at least it's workable. Plus, you can let the interactive setup ask you for all the layer settings then just copy and paste the cli invocation printed @ startup (at least with rototiller). texture= is also now a settings instance, which means compose no longer randomizes the texture settings on its own - it instead uses the settings supplied. A consequence of this is that texture settings need to be actually populated if the texture is used. For rtv, which randomizes settings, it makes no difference and rtv compose invocations w/textures will just end up randomizing the texture through the normal setup randomizing machinery. But for direct compose invocations for instance, there's now an actual texture setup process - and if you just use --defaults, the defaults will be applied which is different from before where it would have always been randomized. This area needs some work, like controlling how defaults are applied perhaps in the actual settings syntax such that randomizing can still be performed if desired instead of "preferred" defaults. That's a more general settings syntax problem to investigate
2023-05-11til_module_context: reference setup from module contextVito Caputo
This just does the obvious pulling in of til_setup_t, holding the reference throughout the lifetime of the module context.
2023-05-11til_settings: introduce til_setting_spec_t concept vs. descVito Caputo
For recursive settings the individual setting being described needs to get added to a potentially different settings instance than the one being operated on at the top of the current setup_func phase. The settings instance being passed around for a setup_func to operate on is constified, mainly to try ensure modules don't start directly mucking with the settings. They're supposed to just describe what they want next and iterate back and forth, with the front-end creating the settings from the returned descs however is appropriate, eventually building up the settings to completion. But since it's the setup_func that decides which settings instance is appropriate for containing the setting.. at some point it must associate a settings instance with the desc it's producing, one that is going to be necessarily written to. So here I'm just turning the existing til_setting_desc_t to a "spec", unchanged. And introducing a new til_setting_desc_t embedding the spec, accompanied by a non-const til_settings_t* "container". Now what setup_funcs use to express settings are a spec, otherwise identically to before. Instead of cloning a desc to allocate it for returning to the front-end, the desc is created from a spec with the target settings instance passed in. This turns the desc step where we take a constified settings instance and cast it into a non-const a more formal act of going from spec->desc, binding the spec to a specific settings instance. It will also serve to isolate that hacky cast to a til_settings function, and all the accessors of til_setting_desc_t needing to operate on the containing settings instance can just do so. As of this commit, the container pointer is just sitting in the desc_t but isn't being made use of or even assigned yet. This is just to minimize the amount of churn happening in this otherwise mostly mechanical and sprawling commit. There's also been some small changes surrounding the desc generators and plumbing of the settings instance where there previously wasn't any. It's unclear to me if desc generators will stay desc generators or turn into spec generators. For now those are mostly just used by the drm_fb stuff anyways, modules haven't made use of them, so they can stay a little crufty harmlessly for now.
2023-05-09modules/compose: pass n_cpus to layers/texture context createsVito Caputo
Existing code was passing 0 which turns into the number of cores/threads. That's fine when compose isn't running nested in an already threaded render, but falls down in something like checkers w/fill_module=compose since checkers is already threading. But when checkers creates its fill_module context, it's careful to pass 1 for n_cpus to prevent that kind of thing. With this change that no longer falls apart.
2023-01-20til: pass module to .context_create()/til_module_context_new()Vito Caputo
Let's make it so til_module_context_t as returned from til_module_context_new() can immediately be freed via til_module_context_free(). Previously it was only after the context propagated out to til_module_context_create() that it could be freed that way, as that was where the module member was being assigned. With this change, and wiring up the module pointer into til_module_t.create_context() as well for convenient providing to til_module_context_new(), til_module_t.create_context() error paths can easily cleanup via `return til_module_context_free()` But this does require the til_module_t.destroy_context() be able to safely handle partially constructed contexts, since the mid-create failure freeing won't necessarily have all the members initialized. There will probably be some NULL derefs to fix up, but at least the contexts are zero-initialized @ new.
2023-01-12modules/compose: fix segfault introduced by 83e41dVito Caputo
It was assumed (n_modules - n_overlayable) would give the number of non-overlayable modules appropriate as base layers. But with the skipping of hermetic and experimental modules the base_idx could be out of reach leaving layers NULL after the loop, which will segfault later when strlen() assumes it's non-NULL. This commit does the simple thing and also counts the unusable modules to subtract from those eligible for base layers along with n_overlayable.
2023-01-11modules/compose: omit experimental and hermetic modulesVito Caputo
This only omits the modules from the random layers Note the texture_values list is enumerated in compose_setup, so there's no corresponding change needed there. It might make sense to change that to a runtime-discovered list though, I think that was done in the pre-flags era.
2023-01-11* turn til_fb_fragment_t.stream into a discrete parameterVito Caputo
This was mostly done out of convenience at the expense of turning the fragment struct into more of a junk drawer. But properly cleaning up owned stream pipes on context destroy makes the inappropriateness of being part of til_fb_fragment_t glaringly apparent. Now the stream is just a separate thing passed to context create, with a reference kept in the context for use throughout. Cleanup of the owned pipes on the stream supplied to context create is automagic when the context gets destroyed. Note that despite there being a stream in the module context, the stream to use is still supplied to all the rendering family functions (prepare/render/finish) and it's the passed-in stream which should be used by these functions. This is done to support the possibility of switching out the stream frame-to-frame, which may be interesting. Imagine doing things like a latent stream and a future stream and switching between them on the fly for instance. If there's a sequencing composite module, it could flip between multiple sets of tracks or jump around multiple streams with the visuals immediately flipping accordingly. This should fix the --print-pipes crashing issues caused by lack of cleanup when contexts were removed (like rtv does so often).
2023-01-10*: introduce paths for module contextsVito Caputo
There needs to be a way to address module context instances by name externally, in a manner complementary to settings and taps. This commit adds a string-based path to til_module_context_t, and modifies til_module_create_context() to accept a parent path which is then concatenated with the name of the module to produce the module instance's new path. The name separator used in the paths is '/' just like filesystem paths, but these paths have no relationship to filesystems or files. The root module context creation in rototiller's main simply passes "" as the parent path, resulting in a "/" root as one would expect. There are some obvious complications introduced here however: - checkers in particular creates a context per cpu, simply using the same seed and setup to try make the contexts identical at the same ticks value. With this commit I'm simply passing the incoming path as the parent for creating those contexts, but it's unclear to me if that will work OK. With an eye towards taps deriving their parent path from the context path, I guess these taps would all get the same parent and hash to the same value despite being duplicated. Maybe it Just Works, but one thing is clear - there won't be any way to address the per-cpu taps as-is. Maybe that's desirable though, there's probably not much use in trying to control the taps at the CPU granularity. - when the recursive settings stuff lands, it should bring along the ability to explicitly name settings blocks. Those names should override the module name in constructing the path. I've noted as such in the code. - these paths probably need to be hashed @ initialization time so there needs to be a hash function added to til, and a hash value accompanying the name in the module context. It'd be dumb to keep recomputing the hash when these paths get used for hash table lookups multiple times per frame... there's probably more I'm forgetting right now, but this seems like a good first step. fixup root path
2022-11-12modules/compose: more robust texture preservationVito Caputo
The existing code only really cared about preserving the incoming texture on behalf of the caller when the compose code itself was doing something with the texture. But there's scenarios where the underlying module being rendered (or its descendants) might play with the texture, and in such a situation when the outer compose wasn't involving a texture it'd let the descandants installed texture leak out to the callers making the texture apply more than one'd expect. Arguably none of the modules should be missing restoration of the incoming texture after installing+rendering with their own. But with this change in place, compose will clean up after nested modules leaking their texture up.
2022-08-07modules/compose: add moire as a texture moduleVito Caputo
moire makes for an interesting texture, esp. mixed with itself: --seed=0x62f00a7b --module=compose,layers=julia:moire:drizzle,texture=moire
2022-08-07til: til_fb_fragment_t **fragment_ptr all the thingsVito Caputo
Preparatory commit for enabling cloneable/swappable fragments There's an outstanding issue with the til_fb_page_t submission, see comments. Doesn't matter for now since cloning doesn't happen yet, but will need to be addressed before they do.
2022-07-21modules/{compose,rtv}: s/prepare_frame/render_fragment/Vito Caputo
These modules have been doing their work in prepare_frame(), but aren't actually threaded modules and don't return a frame plan from prepare_frame() nor do they provide a render_fragment() to complement the prepare_frame(). The convention thus far has been that single-threaded modules just provide a render_fragment and by not providing a prepare_frame they will be executed serially. These two modules break the contract in a sense by using prepare_frame() without following up with render_fragment(). I'm not sure why it happened that way, maybe at one time prepare_frame() had access to some things that render_fragment() didn't. In any case, just make these use render_fragment() like any other simple non-threaded module would. This was actually causing a crash when n_cpus=1 because module_render_fragment() was assuming the prepare_frame() branch would include a render_fragment(). It should probably be asserting as such.
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.
2022-06-10til: introduce til_frame_plan_t and .cpu_affinityVito Caputo
modules/checkers w/fill_module=$module requires a consistent mapping of cpu to fragnum since it creates a per-cpu til_module_context_t for the fill_module. The existing implementation for threaded rendering maximizes performance by letting *any* scheduled to run thread advance fragnum atomically and render the acquired fragnum indiscriminately. A side effect of this is any given frame, even rendered by the same module, will have a random mapping of cpus/threads to fragnums. With this change, the simple til_module_t.prepare_frame() API of returning a bare fragmenter function is changed to instead return a "frame plan" in til_frame_plan_t. Right now til_frame_plan_t just contains the same fragmenter as before, but also has a .cpu_affinity member for setting if the frame requires a stable relationship of cpu/thread to fragnum. Setting .cpu_affinity should be avoided if unnecessary, and that is the default if you don't mention .cpu_affinity at all when initializing the plan in the ergonomic manner w/designated initializers. This is because the way .cpu_affinity is implemented will leave threads spinning while they poll for *their* next fragnum using atomic intrinsics. There's probably some room for improvement here, but this is good enough for now to get things working and correct.
2022-06-10til: add ticks to til_module_context_tVito Caputo
Also wire this up to the til_module_context_new() helper and all its callers. This is in preparation for modules doing more correct delta-T derived animation.
2022-05-29*: pivot to til_module_context_tVito Caputo
- modules now allocate their contexts using til_module_context_new() instead of [cm]alloc(). - modules simply embed til_module_context_t at the start of their respective private context structs, if they do anything with contexts - modules that do nothing with contexts (lack a create_context() method), will now *always* get a til_module_context_t supplied to their other methods regardless of their create_context() presence. So even if you don't have a create_context(), your prepare_frame() and/or render_fragment() methods can still access seed and n_cpus from within the til_module_context_t passed in as context, *always*. - modules that *do* have a create_context() method, implying they have their own private context type, will have to cast the til_module_context_t supplied to the other methods to their private context type. By embedding the til_module_context_t at the *start* of their private context struct, a simple cast is all that's needed. If it's placed somewhere else, more annoying container_of() style macros are needed - this is strongly discouraged, just put it at the start of struct. - til_module_create_context() now takes n_cpus, which may be set to 0 for automatically assigning the number of threads in its place. Any non-zero value is treated as an explicit n_cpus, primarily intended for setting it to 1 for single-threaded contexts necessary when embedded within an already-threaded composite module. - modules like montage which open-coded a single-threaded render are now using the same til_module_render_fragment() as everything else, since til_module_create_context() is accepting n_cpus. - til_module_create_context() now produces a real type, not void *, that is til_module_context_t *. All the other module context functions now operate on this type, and since til_module_context_t.module tracks the module this context relates to, those functions no longer require both the module and context be passed in. This is especially helpful for compositing modules which do a lot of module context creation and destruction; the module handle is now only needed to create the contexts. Everything else operating on that context only needs the single context pointer, not module+context pairs, which was unnecessarily annoying. - if your module's context can be destroyed with a simple free(), without any deeper knowledge or freeing of nested pointers, you can now simply omit destroy_context() altogether. When destroy_context() is missing, til_module_context_free() will automatically use libc's free() on the pointer returned from your create_context() (or on the pointer that was automatically created if you omitted create_context() too, for the bare til_module_context_t that got created on your behalf anyways). For the most part, these changes don't affect module creation. In some ways this eases module creation by making it more convenient access seed and n_cpus if you had no further requirement for a context struct. In other ways it's slightly annoying to have to do type-casts when you're working with your own context type, since before it was all void* and didn't require casts when assigning to your typed context variables. The elimination for requiring a destroy_context() method in simple free() of private context scenarios removes some boilerplate in simple cases. I think it's a wash for module writers, or maybe a slight win for the simple cases.
2022-05-25*: normalize on all case-insensitive comparisonsVito Caputo
I don't think rototiller is an appropriate place for being so uncooperative, if someone gets the case wrong anywhere just make it work. We should avoid making different things so subtly different that case alone is the distinction anyways, so I don't see this creating any future namespace collision problems.
2022-05-23*: silence some more clang parens warningsVito Caputo
2022-05-23modules/compose: don't clear frame in prepare_frame()Vito Caputo
I'm not sure why this was being done, it was probably just vestigial from whatever I bootstrapped the compose module with and never thought to remove it. The first compose layer rendered will clear the frame if necessary. By compose doing it ahead of time, it's performing potentially unnecessary work clearing if the first layer is a frame-filler style render where no clear is ever performed.
2022-05-21modules/*: first stab at utilizing supplied seedsVito Caputo
This is a mostly mechanical change of using rand_r() in place of rand(), using the provided seed as the seed state. There's some outstanding rand()s outside of create_context() which should probably get switched over, with the seed being stowed in the context struct. I didn't bother going deeper on this at the moment in the interests of getting to sleep soon.
2022-05-21til: supply a seed to til_module_t.create_context()Vito Caputo
In the recent surge of ADD-style rtv+compose focused development, a bunch of modules were changed to randomize initial states at context_create() so they wouldn't be so repetitive. But the way this was done in a way that made it impossible to suppress the randomized initial state, which sometimes may be desirable in compositions. Imagine for instance something like the checkers module, rendering one module in the odd cells, and another module into the even cells. Imagine if these modules are actually the same, but if checkers used one seed for all the odd cells and another seed for all the even cells. If the modules used actually utilized the seed provided, checkers would be able to differentiate the odd from even by seeding them differently even when the modules are the same. This commit is a step in that direction, but rototiller and all the composite modules (rtv,compose,montage) are simply passing rand() as the seeds. Also none of the modules have yet been modified to actually make use of these seeds. Subsequent commits will update modules to seed their pseudo-randomized initial state from the seed value rather than always calling things like rand() themselves.
2022-05-01til_fb: introduce a fragment texture sourceVito Caputo
Idea here is to provide texture sources for obtaining pixel colors at the til_fb_put_pixel/fill drawing API, making it possible for at least overlayable modules to serve as mask/stencil operators where their drawn areas are populated by the contents of another fragment produced dynamically, potentially by other modules altogether. This commit adds a texture=modulename option to the compose module for specifying if a texture should be used when compositing, excepting and defaulting to "none" for disabling texturing. A future commit should expand this compose option to accept a potential list of modules for composing the texture in the same way as the main layers= list functions. Something this all immediately makes clear is the need for a better settings syntax, probably in the form of all module setting specifiers optionally being followed by a squence of settings, with support for escaping to handle nested situations.
2022-05-01modules/*: make use of generic fragmentersVito Caputo
Just one case, modules/submit, was using 32x32 tiles and is now using 64x64. I don't expect it to make any difference. While here I fixed up the num_cpus/n_cpus naming inconsistencies, normalizing on n_cpus.
2022-04-25modules/compose: implement layer setting randomizerVito Caputo
It's getting crazy in here, this is fun: --module=rtv,channels=compose,duration=1,snow_duration=0,context_duration=1 which will rejigger the commpose module w/randomized layers every second.
2022-04-24*: free setup allocations via til_setup_free()Vito Caputo
This should plug a bulk of the setup leaks. Some of the free_funcs still need to be changed to bespoke ones in modules that allocate nested things in their respective setup, so those are still leaking the nested things which are usually just a small strdup of some kind.
2022-04-24*: s/void */til_setup_t */Vito Caputo
This brings something resembling an actual type to the private objects returrned in *res_setup. Internally libtil/rototiller wants this to be a til_setup_t, and it's up to the private users of what's returned in *res_setup to embed this appropriately and either use container_of() or casting when simply embedded at the start to go between til_setup_t and their private containing struct. Everywhere *res_setup was previously allocated using calloc() is now using til_setup_new() with a free_func, which til_setup_new() will initialize appropriately. There's still some remaining work to do with the supplied free_func in some modules, where free() isn't quite appropriate. Setup freeing isn't actually being performed yet, but this sets the foundation for that to happen in a subsequent commit that cleans up the setup leaks. Many modules use a static default setup for when no setup has been provided. In those cases, the free_func would be NULL, which til_setup_new() refuses to do. When setup freeing actually starts happening, it'll simply skip freeing when til_setup_t.free_func is NULL.
2022-04-22modules/compose: randomize layer settingsVito Caputo
Randomize the setting of the layered modules like rtv does. This needs to free the setup, similarly to the others, once that facility is added.
2022-04-19*: s/til_fb_fragment_zero/til_fb_fragment_clear/Vito Caputo
Mechanical renaming of "zero" to "clear" throughout for this context.
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