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Some compilers seem to get upset about this in combination with
my use of -Werror -Wall
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It's looking like truncation is more often annoying, let's try
rounding.
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Previously only FLOAT and DOUBLE were handled, and several module
taps have been created as those types to make them available for
rkt sequencing despite being integers. (book/page for instance)
As more taps get implemented, it'll only become increasingly
silly for everything needing an integer sequenced to be handling
this conversion itself when a generic clamp+truncation would
suffice.
This commit adds such handling of integer taps. No rounding is
performed, nor wrapping on overflow/underflows. Just clamping to
the type's limits as defined by {stdint/float}.h (while at it
I've added clamping of the FLOAT type which technically was
already necessary but ignored).
Future commits will likely switch some FLOAT taps to appropriate
integer types, cleaning up some ad-hoc conversion code in various
modules.
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There's already a pause triggered here, but the audio wasn't
getting paused as well.
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Until now everything interested in audio just used a plain getter
on the stream to get at the context.
But with how things work currently, audio is always left in a
paused state until explicitly unpaused. This works fine with
modules/rkt, which manages pause/unpause explicitly. When
there's nothing like modules/rkt in charge though, the audio just
sits stuck paused. Meaning if you do some simple thing like
--module=playit, it won't ever get unpaused.
With this commit, something like modules/rkt takes control of the
stream's audio context, in a way that prevents anything else from
taking control of the same context on the same stream. That
enables having main try take control of the audio context after
creating the module contexts, then in the rendering thread ensure
the audio is unpaused if main is in control of the audio context
and something's queueing audio frames.
For now there's no mechanism for releasing control of the audio
context. It doesn't seem appropriate to make this more elaborate
than necessary. There's basically just two use cases WRT audio:
1. Something like rkt, which takes control once for the process
and stays in control until process exit.
2. Something far simpler where nothing's taking control like
rkt, and main just needs to get things unpaused when
needed because something's generating audio frames.
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- til_audio_seek() when Rocket sets the row
- til_audio_{pause,unpause}() when Rocket (un)pauses
This is of limited use as-is, rkt probably needs a sister concept
of scenes for songs, which similarly to scenes would be selected
by index in a discrete Rocket track.
As-is to make music work one must always incorporate something
like a modules/playit context into the current scene so it always
gets rendered alongside the visuals. That's quite cumbersome and
annoying.
Another possibility would be introducing something like a
"register" built-in that, like "ref", takes a context path, and
maybe something like a pre/post setting. That would put it in
the rendering path of the stream before or after any explicit
renders... Then all one would need is to register a
modules/playit context with the song of interest to have it play,
and create that as any other rkt "scene", and reference its
context from "register" which could bind a tap for controlling
the registered/unregistered state. It needs more fleshing out,
but what's here seems worth merging as-is for now.
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Trivial cleanup. These are unnecessary nowadays since
til_setup_free() won't invoke the free_func() on a NULL setup,
and everything uses til_setup_free() to free a til_setup_t.
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Mechanical rename to txt_render_fragment_aligned(), updating all
existing call sites accordingly.
This is a preparatory commit for introducing an offsetted variant
of txt_render_fragment() (txt_render_fragment_offsetted()).
No functional difference, purely naming changes.
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Just some more res_setup baking failure path cleanups, largely
mechanical change.
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More setup_func conversion to returning the failed setting on
errors during res_setup baking.
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Commit 64a5b17 added this to til_module_context_t, so it's
already being tracked now making this redundant.
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This needs the stream pulled in so the signature changed to
accomodate that.
Also modules/rkt was calling this conditionally which won't be
compatible with the per-frame driver race model, so always call
it to maintain the driving position every frame.
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Another trivial leak fixup.
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Another trivial leak fixup
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On shutdown til_stream_untap_owner() will call into the pipe_dtor
hook if set. So until now this was just (harmlessly) leaking the
rkt_pipe_t allocated by the pipe_ctor hook on the road to process
exit.
But in the interests of silencing ASAN about leaks on graceful
exit, I'm tying up these loose ends.
This dtor will also be utilized for performing a FORGET_TRACK via
Rocket once that's a thing.
While here I also got rid of the pipe_dtor return value, as it's
unused with no clear potential purpose (for now).
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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.
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This gets rid of the ad-hoc module lookups previously necessary
for finalizing the nested module setups. Now that the
til_estup_t.creator tracks the creating module, the
rkt_scene_module_setup() wrapper can take care of finalizing.
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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.
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Most of the time in scener you want to add a compose, you
basically never want blank, so the :blank thing was kind of silly
from the perspective of what happens most often.
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rkt_setup() and rkt_scener_update() had distinct implementations
for scene module setup. This consolidates that where trivial to
both use the new til_module_setup_full() with appropriate
parameters, wrapped up in rkt_scene_module_setup().
The finalizing phase is still ad-hoc which is mildly annoying,
but if finalizing just passed into rkt_scene_module_setup() there
wouldn't be the til_module_t onhand for sticking in rkt_scene_t.
So the code to extract and lookup the module from the settings
would still be needed anyways, as the whole til setup_func api
isn't limited to modules so the baked til_setup_t doesn't come
back with a til_module_t hanging in there. Maybe in the future
this gets changed a bit, there could for instance be a void* in
til_setup_t where something usage-specific goes, like the
relevant module in the case of a module's setup. Something to
consider for the future.
Consolidating these in the pre-finalize phase at least ensures
consistent behavior in initial rkt::scenes setup vs. scener
editing/new scenes.
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Since blank is a builtin, at least for now it requires explicit
override since the builtins aren't added to the modules values
list and filtering is going to be always applied shortly.
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The "tiller" base (base being a Rocket concept) was always a bit
spurious. Maybe "til" would make more sense, but "rkt" is more
contextually specific.
I think when I originally picked "tiller" I was prioritizing
picking something unlikely to collide with another directory
name. But the way Rocket is naming the directory in the
filesystem it gets suffixed with an _ anyways.
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The "compose,compose,compose,compose" default was never intended
to be permanent, but gave a set of scenes to test the Rocket
integrations like scene selection and scene-specific tracks
without any additional effort.
Now that there's scener for easily adding/editing scenes, and
things are just generally more mature, I think it makes sense to
just go back to something minimal here.
I'd really rather just have it be "", but that's not handled well
presently. There isn't really a way to start with an empty
scenes set for rkt. Which is awkward, but "blank" is close.
It'd just be nice to start with an altogether blank slate rather
than having to always edit the default first scene when starting
anew...
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Now that the "scener" interface seems to be semi usable and
capable of editing... things are looking more complete in the
sense that there's no huge gaping holes and a lot of the dust has
settled.
It's also looking pretty good for this sticking around long-term,
so I'm removing the experimental flag making this more
discoverable and visible in general.
There's still work to be done surrounding GNU Rocket the library,
like getting it using non-blocking connects, and there's a need
for forgetting tracks which the protocol doesn't support
currently. But it'd be silly to wait on getting those things
upstream before making rkt more visible.
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On Linux I don't notice a significant affect on anything letting
rkt try connect every frame when offline but in creative mode.
On Windows however, Dan reported significant latencies in the
Scener prompt responsiveness and visible slowdowns in this
condition.
I suspect the WIN32 Rocket library's sync_tcp_connect() code is
the real problem here. But for now I can ameliorate things a bit
by just hammering on that code path less when unconnected.
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This is only relevant to creative mode. Stops RocketEditor from
continuing playback endlessly until user intervention beyond the
current end of the demo.
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Prepartory commit for pausing playback upon entering 99999 scene
It needs to trigger only on the edge of entering the scene to
permit RocketEditor to unpause playback even if still in scene
99999, if that's what the user is trying to do. It'd be annoying
to have it just keep asserting a paused state until the scene idx
leaves 99999...
But this also enables triggering anything on scene change edges,
for future stuff.
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- strip off the leading /path/to/rkt/module prefix
- separate taps from their scene context path with ':' vs. '/'
RocketEditor doesn't currently support recursive grouping, so
this is as good as it gets.
Note this commit will break the existing tracks for alphazed, so
you'll have to use a newer .zip for track data if building your
rototiller from source. Or build from a prior commit.
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Preparatory commit for rewriting track paths a bit to better
group things in RocketEditor. I'll need access to
rkt_context_t.til_module_context_t.setup->path for prefix
matching purposes..
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rkt_scener needs to know this value so define it in rkt.h and
switch over all the existing 99999 instances.
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trivial simplification
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This changes things so rkt won't exit with an error @ startup if
RocketEditor isn't already listening. It also tolerates
RocketEditor going away, and will show a "OFFLINE" overlay status
text should that happen w/connect=on.
Some status text has also been added to the "EXIT SCENE" 99999
scene for both the RocketEditor connection and the scener
enabled/disabled status. No indicator yet for if scener has a
connection though, only if it's listening or not via listen=on.
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This adds a BBS-style interface for creating new scenes in a live
rkt session.
It listens on tcp port 54321 on localhost by default, just use
telnet to connect, the rest is fairly self-explanatory.
This is still early days, but it's a whole lot more than nothing.
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With the "ref" builtin module established and seeming to work
well enough, it looks unlikely we'll need access to unresolvable
module names in the contexts.
The thinking originally was that these names might have special
syntax making them more generic. E.g something like
"@/module/rkt/scenes/[1]/drizzle" for a module_name would have
been supported, which would get resolved either at context create
or even later (as in the ref builtin) at render time.
But the ref builtin is using a path setting, so module names just
stay module names.
Maybe in the future a special syntax will be added for brevity
reasons, but it does make the code more complicated vs. module
names just being names and resolving them entirely at setup time.
Anyhow, this commit does away with the module_name in the
context's scenes. You can still access it via
til_module_context_t.module.name anyways... it's basically just a
resolution-of-name-to-context time constraint that's being
codified now.
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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.
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Make this a distinct heap allocation so it can be enlarged when
editing the scenes... (preparatory commit for scenes editing)
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Preparatory commit for adding an interactive scene editing server
of sorts. It'll go in a separate listing, but needs these types
as it'll operate on rkt_context_t->scenes[].
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This was written when module names were going to have an
@/path/to/context "handle" syntax. But instead I went the "ref"
builtin module route, with path=/path/to/context as a setting.
While it's more verbose in the settings, it "just works"
everywhere that can take a module+settings because the ref
builtin is just another module like any other.
So this TODO is referring to something that won't happen in a
"ref" builtin world.
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This conditionally will end the stream on scene 99999 if
connect=off (playback mode)
When connect=on it'll just make it show an "EXIT SCENE"
diagnostic instead of the "NO SCENE" message.
Now you just stick 99999 in the rkt:scene track to end the show.
It's assumed 99999 scenes will never be needed...
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It's problematic getting this stuff online at render time,
because the modules end up rendering with uninitialized tap
values in that first frame.
With this change modules can get their taps on-stream at context
create, and we'll notice and do the initial rocket update just
before returning the rkt context to prime everyone on-stream.
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I thought the build was already using -Wall but that seems to not
be the case, maybe got lost somewhere along the line or messed up
in configure.ac
After forcing a build with -Wall -Werror, these showed up.
Fixed up in the obvious way, nothing too scary.
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a390e82 stopped using this, but didn't remove it.
As it was initialized to NULL, it was deffectively all a NOOP.
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The return value was just being ignored previously, and that
really starts mattering in a world with contexts finding others
by user-supplied paths making such failures far more likely.
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This drops the seq_module= setting in favor of a scenes= setting
in the same style of compose::layers; a nested settings instance
composed of more nested settings instances, one per scene.
A nice side-effect of this change is it no longer uses
til_module_setup_randomize() at all, which was being used to mix
up the seq_module's settings in a pre-nested-settings world.
A new Rocket sync track is introduced named "$context_path:scene"
for selecting which scene to render.
For now all scenes get created @ context create time, and persist
for the entire rkt context lifetime. In the future the context
lifetimes might become explicitly controllable with separate
Rocket tracks used as booleans. This becomes relevant once
modules can make use of existing contexts located within the
stream at their respective context paths. Something necessary
for integrated transitions between scenes using stuff like
fade modules which haven't been added yet.
With this change you can already enumerate a set of scenes in the
rkt settings string, each 100% explicitly configured, and have
Rocket track data select which scene to render on the timeline,
and manipulate the taps at their scene-specific
context-path-derived track names.
In addition to the need for modules picking up existing contexts
on the stream, rkt probably needs a way to interactively
add/remove/modify scenes then spit out the serialized settings
string for the current state of the world.
As these aren't functionalities provided by GNU Rocket, and it's
unclear how receptive upstream GNU Rocket/glrocket maintainers
would be to such additions, rkt will likely first add another
listener for a strictly scenes-editing client to connect
alongside the GNU Rocket stuff. Just something that shows the
current scenes table, and provides a way to edit/add/remove rows
there, with the changes realized in rkt real-time. Then the
Rocket Editor will just continue using the rkt:scene track to
numerically index into this scenes table, without the Rocket
Editor having any visibility or awareness of what's going on in
that table. Probably ok as an initial stab at making demos with
this stack.
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Mechanical change removing some rkt_setup_t* casting verbosity in
rkt_create_context()
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This eliminates the ad-hoc track_name[] allocation and
construction, since the track_name wasn't being used after
getting the track anyways. No point wasting the memory on it,
and the little helper constructing the name on-stack exists now
for another future use @ rkt_create_context().
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Preparatory commit for adding scenes and a $rkt_setup_path:scene
track for selecting them. This will also likely replace the
whole track_name allocation/construction in rkt_pipe_t since we
don't actually make use of that name after getting the track
(except maybe for debugging purposes)
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Mechanical rename just to make this consistent with
til_module_setup()/til_module_setup_finalize()
I should probably do a cleanup pass throughout the til APIs to
standardize on a subject-verb-object or subject-object-verb
order... Things have become a little inconsistent organically
over time
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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.
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