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After putting the recv() in a for(;;) to not have to render a
frame per byte received, I completely dropped the ball on moving
the return and adding the continue to actually finish the change.
This makes creating new scenes via pasting long settings strings
far less laggy. A future improvement would be to not recv() a
byte at a time, but this really isn't a perf-sensitive thing.
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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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Remove spurious space
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Trivial related indentation adjustment too
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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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I had benchmarked this change and it showed no difference at all
on my 2c/4c i7 X230.
But having just tried it on an RPi4B where it moved the test case
from 54FPS to 60FPS, a +10% improvement, it's worth the
readability loss.
It's interesting how Intel's cleverness discourages optimizing in
ways that benefit probably *all* the competition... even when the
optimization is such a minor change in terms of effort.
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Major gain comes from eliminating the cosf() from the inner loop...
There's still a bunch left on the table for moire but even just
these changes turn 19FPS into 81FPS over here for:
'--module=compose,layers=moire\\\,centers\\\=2\,moire\\\,centers\\\=2\,moire\\\,centers\\\=2\,moire\\\,centers\\\=2,texture=none' '--video=mem,size=1366x768'
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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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This probably needs more work... it seems wrong to be bypassing
the taps altogether when dt is 0
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And just maintain it as the last ticks value after rendering with
the context...
A couple modules were already doing this manually in an ad-hoc
fashion, just make it a general thing.
Updated those modules to reflect the new situation
Especially in a rkt world with modules::mixer doing fades, it
becomes common to render the same context twice in the same frame
for the blending. We need to prevent accelerated animations in
such situations. For now let's just rely on ticks in a delta-T
fashion to prevent animating the context when ticks is the same.
modules::stars in particular needs this fixed up, upcoming commit
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This moves the tap updating to a function shared by rendering and
context create... so we can have a valid externally-driven tap
value before rendering a single frame if possible. (this is
important for not having spurious frames/flickers in rkt
sequences)
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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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This really needs SIMD to fly on-cpu, but this improves things
some.
Using `--module=mixer,style=fade,a_module=roto,b_module=roto\
--video=mem,size=1366x768 --defaults --go` to test:
Before FPS: 92-95 floating mostly around 94-95
After FPS: 107-111 floating mostly around 108-109
so +14.8% FPS
(2c/4t i7 X230)
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It's problematic/racy to always be dereferencing the tap pointer
to access it's current value.
Running checkers:fill_module=mixer on a 2c/4t (n_cpus=4) machine
was quite effective at crashing in mixer::render_fragment()
due to dereferencing a NULL snapshot fragment.
The "tween" T value is being used to indicate when interpolation
of the snapshots is necessary. But repeatedly re-reading the T
value via the tap pointer would race with the driving tap. In
the case of checkers, which is a threaded module, the mixer
contexts are all rendering in parallel at the same path so
they're sharing a single pipe for their T taps.
This situation of sets of contexts sharing a single path,
resulting in their taps all landing on a single pipe, is still
largely up in the air and might be actively prevented in the
future. But until then, it can be made far less crashy and
problematic by just being more careful about dereferencing the
tap to access its latest value just once at the prepare frame
stage, storing it in the local T variable in the context. Then
all the render_fragment() accesses can at least find a stable
value in the context from prepare-to-render, so at least the
snapshots are there when they should be according to the T value
etc.
Something like this will probably need to be done regardless of
what happens with the context sets sharing the same path. Since
when a given tap isn't the driver, it still has to take care to
just grab the updated value once for the frame... The tap API
can't really automagically do that single update of the local
variable when passenger though, since it's been deliberately kept
devoid of all the type-specific accessor junk (ptr/elems etc are
all void **/void* in the tap api side). Hence why this commit is
just ad-hoc updating the local variable in the else branch; it's
best positioned to do so directly. But there still needs to be
more consideration for thread-safety.
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Maybe earlier versions used the absolute coordinates in the
frame, but the current code doesn't make use of this and simply
needs to confine itself into the WxH of the fragment.
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This is not optimized at all and tends to hurt the FPS
significantly. This is one of those things that would hugely
benefit from SIMD, but even without SIMD it could be done better.
I just slapped together something obvious for now, as I'd like to
focus more on the rkt side but need a better fader for scene
transitions than style=flicker.
Also changed {a,b}_module= preferred values to blank,compose
so you see something happen if you just run --defaults.
Otherwise, the compose,compose would just fade between two
identical compositions invisibly.
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Originally I was thinking a variadic inputs= like compose::layers
would be desirable, with the T value's integer serving as an
index into the inputs, and the fraction between the integers as
the mixing T.
But I changed my mind and am instead constraining mixer
explicitly to two distinctly named modules; a_module= and
b_module= with the T value 0-1 mapping to a-b.
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Not sure why this was -ENOMEM, module lookups don't allocate
anything...
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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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Similar to fill= and fill_color=, these influence how to treat
the "clear" cells.
Until now "clear" cells would unconditionally just be cleared via
til_fb_fragment_clear(). Now they can also be filled
w/color,sampled,textured, and maybe in the future a clear_module=
will also be introduced.
Note that for now I've left the clear_color randomizer disabled,
see code comments.
Having this setting also makes me wonder if the "filled" cells
should be optionally cleared using the "clear" setting first.
Imagine a scenario where you have fill_module=shapes, and you
want the color around the shape to match the clear color, for
instance... Especially once you can pass a color down to the
fill_module, controlling these things becomes more critical.
There's definitely more work to do here.
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Preparatory commit for introducing equivalents for the "clear"
cells.
This renamed the color= setting to fill_color=, in addition to
the internal naming.
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This probably needs more work, but this at a minimum should
prevent us from leaking contexts in the stream at the myriad
paths we construct them at.
Context registration replaces what's at the existing path, but
rtv produces all sorts of setup paths, and I haven't added any
explicit unregistration of contexts at this time. That might
change, but for now let's just use this gc mechanism even if it's
a temporary hack.
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this is very early/unfinished, hence experimental flag
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The modules don't have to defend against this, vestigial from
simpler times
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compose must have been derived from rtv originally, which uses
txt.h.
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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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These are already reality as of late
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Just a boring replacement of the ad-hoc n_cpus context creates
for the fill_module contexts with the newly added libtil
equivalent function.
Future commits will expand the libtil side to get module contexts
registered for discovery purposes on-stream. This change moves a
bit closer towards that goal...
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Somewhere along the line this leak was created, there's been a
lot of activity surrounding this stuff so it's unsurprising.
A little janky surrounding the conditional on snow module, but
that's just how snow is handled today - it doesn't get randomized
like the other channels do.
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Rather than creating an orphaned settings instance private to
til_module_setup_randomize(), the function now requires the
settings instance be provided.
The one remaining caller of this function is modules::rtv. Now
that rtv is responsible for creating the settings beforehand, and
the settings may be created with a path prefix, rtv gets its
til_module_context_t->setup.path prefixed for all the channel
settings.
Another improvement is now the channel settings instance gets
created from the module name as the settings string. So while
it's not yet possible to sparsely specify settings with others
being randomized, at least now when log_channels=on is in effect,
the printed args include the top-level channel module.
Having proper complete paths for the rtv channel modules is
especially visible in --print-paths output FYI.
An interesting test for exercising all this is:
```
$ src/rototiller --module=rtv,duration=0,context_duration=0,snow_module=none,channels=all,log_channels=on --print-pipes --defaults --go 2>/tmp/channels
in another terminal:
$ tail -F /tmp/channels
```
watch the chaos unfold
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Montage would randomize orphaned setting instances for the
participating modules @ context create time.
This not only produced montage tiles one couldn't configure via
settings even if they wanted to, but it also produced partial
paths due to the orphaned settings instances.
With this commit montage tiles are configurable in the same way
compose::layers are; a comma-separated list of modules with
settings accompanying them.
Randomizing is no longer performed, but if seen via something
like rtv, that randomizer will operate on the regular setup
machinery to produce randomized montages.
One new ability delivered with tiles= is you can specify the same
module repeatedly to produce a tiled display of the same thing.
Those instances may have the same or different settings, it's
totally controllable.
This also opens up the future for more interesting things like
shiftng ticks in the montage tiles... imagine showing the same
module a few times in each row, but offsetting ticks into the
future/past in the columns. For ticks-driven modules, you'd see
the future/past frames side by side, like a flipbook effect.
This leaves rtv as the only til_module_setup_randomize() caller
remaining...
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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)
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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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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.
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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.
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Commit 7c8086020 switched the til_setup_new() api to support NULL
free_func for free().
This mechanical change pivots to that instead of the awkwardly
cast free() parameters.
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When voronoi is overlayed the colors get sampled, so randomizing
them is pointless work every frame.
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This seems to work on my 2c/4t laptop and is certainly faster.
But I'm not being careful about using atomics loading/storing the
d->cell pointer, which seems problematic. Surprisingly things
aren't crashing here despite that, maybe on a non-x86 smp box
it'd be a different story.
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