* Added a new binding type, SkEffectBinding. This stores another
entire effect params structure (so the JSON is just nested).
The name is a callable value that spawns a new instance of
that effect, inheriting the parameters of the spawning effect
or particle (depending on which kind of script made the call).
* Broke up the monolithic update function into some helpers,
got some code reuse with the script calling logic.
* Unlike particle capacity, there is no upper limit on child
effects (yet), so it's easy to trigger runaway memory and
CPU consumption. Be careful.
* Added death scripts to effects and particles, which are a
common place to want to spawn sub-effects. Like spawn,
these run on each loop, but for one-shots they play at the
end. Even with loops, this is helpful for timing sub-effects
(see fireworks2.json).
* Finally, added a much more comprehensive example effect,
raincloud.json. This includes a total of three effects, to
generate a cloud, raindrops, and splashes when those drops
hit "the ground".
Change-Id: I3d7b72bcbb684642cd9723518b67ab1c7d7a538a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/242479
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: I3436ee95c4cc13067b53b170515fd10c19b329b3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/242136
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
This change adds another layer of complexity and control to
the particle system. There are now two code chunks: the old
code that's run per-particle, and new code that's run for
the effect itself. This allows for effect lifetime to be set
by the script (eg, randomly), as well as the emission rate.
Rate can vary over time (see pulse.json), and particles can
be emitted in bursts by setting the effect's burst field
(see fireworks.json).
Additionally, the effect has its own frame of reference and
color, which becomes the default state for newly emitted
particles. This allows synchronizing state across particles
in various interesting ways (see color in fireworks.json).
Change-Id: Iec2f7a3427ce1d6411ed7ef5b3023cbef2e8a134
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/240498
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: I9f71bfbd506b56eae4fe6a430b70f8f9a31d7009
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/238445
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Makes it clearer that this isn't optional, for drawables that route to
similar canvas calls.
Change-Id: I12142c11676ba6baeea3e2779ec05af601d8beb3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/238440
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Also simplify type registration.
Change-Id: Ia47febb2ae2cd5821476c3dd33a688b688aa6d6d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/238359
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Change-Id: If99e1802c8187ebd98b67717d744c6695bb25900
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/238118
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
These unused comparison operators are the only users of
<functional> in SkRefCnt.h, for std::less. <functional>
is an expensive header to compile, and SkRefCnt.h is popular,
so it helps to cut dependencies like this.
Mostly we just need to add #include <functional> in a few
places that were picking it up via SkRefCnt.h.
In SkPixmapPriv.h, it looked simpler to template the argument,
since everything was inline anyway.
Change-Id: I7c125bb26a04199847357c729a1b178256c6ef8d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/236942
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Added factories to create particle binding objects, which were the only
piece that couldn't be generated programmatically.
Commented most of the things that a user needs to know to create an
effect from within code. (Except for all the details of SkSL).
Change-Id: I4003e536e46c77e0c1c9e83486cf99f0c2cf54d1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/230120
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: If57fb79db8f8c5fd185fefaa202167c8082dd846
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/229921
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: Ic81b3433b485ca9ce0e60bd10ec12706e673ee89
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/229917
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
Auto-Submit: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
This removes all of the fixed-function particle affector classes.
Instead, each particle effect just has two SkSL snippets, one for
spawn logic, and one for update logic. Each one gets an inout copy
of the particle struct. Ultimately, this makes the effects much
simpler and smaller, while also being far more flexible (you can
do whatever you want with any values you want). Finally, because
the interpreter is vectorized and a particular effect's scripts
are usually tuned to the specific behaviors desired, it's faster
on basically every effect I compared.
I re-created all of the old effects in the new system. Many just
use pure SkSL (no curves or anything). Some of the old curve and
path/text stuff was very handy, though - so those are now exposed
as external values in the interpreter. Basically, an effect can
have any number of named "bindings" that are a callable thing.
This can be a path, text (shortcut for making fancy paths), curve,
or color curve. The path ones return a float4 with position and
normal, the curves return one or four floats.
... and this transposes all of the particle data storage into
SoA form, so that it can use the much faster interpreter entry
point.
Change-Id: Iebe711c45994c4201041b12d171af976bc5e758e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/222057
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
This is a reland of f42de9e1e5
Original change's description:
> Interpreter: Bounds check array access, add bool return from run
>
> Out of bounds access with constant indices is a compile error.
> At runtime, causes the interpreter to fail. Made several other
> conditions trigger the same failure logic, and updated all
> uses of the interpreter to validate success.
>
> Change-Id: I3720b3c83903220b010ec574121fc64dbe102378
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228256
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
Change-Id: I8849de815f7efb730ac9c55b6edd296cb9ca7599
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228353
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This reverts commit f42de9e1e5.
Reason for revert: All the SANs
Original change's description:
> Interpreter: Bounds check array access, add bool return from run
>
> Out of bounds access with constant indices is a compile error.
> At runtime, causes the interpreter to fail. Made several other
> conditions trigger the same failure logic, and updated all
> uses of the interpreter to validate success.
>
> Change-Id: I3720b3c83903220b010ec574121fc64dbe102378
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228256
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
TBR=mtklein@google.com,brianosman@google.com,ethannicholas@google.com,reed@google.com
Change-Id: I434601960d54fbd7d00e2af2dc6269a83a768c5b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228352
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Out of bounds access with constant indices is a compile error.
At runtime, causes the interpreter to fail. Made several other
conditions trigger the same failure logic, and updated all
uses of the interpreter to validate success.
Change-Id: I3720b3c83903220b010ec574121fc64dbe102378
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/228256
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Use float* to match the ByteCode run API (and make the sizing of data
clearer). Add a lane index to all external value calls. My upcoming
overhaul of the particle code needs this, but I wanted to break that
(large) CL up.
Change-Id: I0588cd7769a1dced9f088de5756947bb744c146b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/223178
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Pulling this cleanup out of a larger CL
Change-Id: Ib3ecff5d242eba72a7f2bc3ce07e09760a9ba7b7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/223181
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This reverts commit 90507286cc.
Reason for revert: Seems to be breaking some builds
Original change's description:
> Shuffle SkSL sources around so compiler and bytecode can be used w/o GPU
>
> Change-Id: I7236a30040ab532086e68d6e9de2898dd7acaa32
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/221098
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> Reviewed-by: Mike Klein <mtklein@google.com>
TBR=mtklein@google.com,kjlubick@google.com,brianosman@google.com,ethannicholas@google.com,reed@google.com
Change-Id: Ie230315a72ebcfae32bc9ce7bafec1f87106cff2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/221536
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Change-Id: I7236a30040ab532086e68d6e9de2898dd7acaa32
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/221098
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Slightly sharper, but far easier to hold:
- Remove Value union from interface, everything is a 32-bit
value type, or a collection thereof.
- Collapse to one version of Run (that takes count), and make
it a member on ByteCode.
- Similarly, move disassemble to ByteCodeFunction.
Change-Id: I07c85e65991178b3f52e20e815c25f36bc9c4257
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/220753
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Interpreter is now just a namespace with Run and Disassemble. This hides
all of the implementation details. In addition, the interpreter only used
the Program because of a few details in FunctionDeclarations - scrape that
when constructing a ByteCodeFunction, and we don't need to keep the entire
Program alive, just the ByteCode. Adjust tests to ensure that this works.
Change-Id: I61efe4fe986476afedbd295d3d55b2a326fea4e3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/219521
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Update sample effects to use that (and remove the need for the
hacky workaround "random -> frame" affector I was using).
Current perf on my workstation, 6k particles updating:
native: 0.67 ms
interp: 0.97 ms
Change-Id: I3a2168c210d7431ffffe2b87ab6adade69f1dce7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/214190
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Workaround for the SkSL sources being part of the gpu component in GN,
causing link errors in CanvasKit CPU builds. Better solution is to move
the SkSL interpreter into a separate component.
Change-Id: I0438d8eff16f335eb07ff557f7917697767c58f4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212987
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
Change-Id: Ib440570ecbd46b5bc98d346592cbbb72f58ae85a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/212500
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Current strategy: everything from the top
Things to look at first are the manual changes:
- added tools/rewrite_includes.py
- removed -Idirectives from BUILD.gn
- various compile.sh simplifications
- tweak tools/embed_resources.py
- update gn/find_headers.py to write paths from the top
- update gn/gn_to_bp.py SkUserConfig.h layout
so that #include "include/config/SkUserConfig.h" always
gets the header we want.
No-Presubmit: true
Change-Id: I73a4b181654e0e38d229bc456c0d0854bae3363e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/209706
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Hal Canary <halcanary@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Avoids double-compiling SkTextUtils (with different settings),
which is already in the dependent 'skia' target.
Change-Id: I3f803e7ebcc0787b8b47a85d2a5a52fd8e0778db
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/207866
Reviewed-by: Mike Klein <mtklein@google.com>
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
These changes let us build a non-official component build on Windows,
using either MSVC or clang
Change-Id: Ia3279aa19e007e70ff28925ff70a0bfe8144d96f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/207307
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This differed from the separate versions in that it snapped to zero.
It was also strictly worse than calling the two separate versions.
Most clients don't need the snapping, so just call the two existing
functions. For clients that need the snapping, call new variants of
each that do snap.
Change-Id: Ia4e09fd9651932fe15caeab1399df7f6281bdc17
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/205303
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Mike Reed <reed@google.com>
This fixes a subtle bug with correlated behavior, where the spawn and
update affectors would get the same sequence of random values, leading
to confusing patterns.
Bug: skia:
Change-Id: Ieaace68bfe92281ec81497a8c6ce0108df996a4c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/199251
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Bug: skia:
Change-Id: If9d8a22a770e4125391d0fbd263521f6bdb7725d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/198246
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Bug: skia:
Change-Id: I99913987ec5de044ecc9302335771f59d85126dc
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/198243
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Remove SkAnimTimer from the module interface entirely.
Clean up some other SkParticleEffect methods. Simplify
VisitTypes to just visit all of them, it's easier for
the client to do any filtering.
In the slide, make the UI far nicer. Load all files in
a given directory, and allow editing (and saving) them
all at once, or adding a new entry. Support multiple
playing effects, with a draggable handle to set the
position.
Bug: skia:
Change-Id: I0bec4077f9135bc122569f1410bebc96d5439480
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/197243
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Bug: skia:
Change-Id: I5bf08e8007b59b5e21005f5004d698e53b99ffe6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/197849
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Bug: skia:
Change-Id: I499262277ac1c8d92a39a66f6e846e248b102aef
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/197767
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
All curves (and path affectors) are driven by an SkParticleValue. The
value can derive its value from the current defaults (age of particle
or effect), or explicitly choose the other one, a random value, or any
other particle value. Values can be range adjusted and support repeat,
clamp, and mirror tiling.
Also fixed some more issues related to resource path in the slide GUI.
Bug: skia:
Change-Id: I4755018d5b57ae2d5ec400d541055ca4fb542978
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/196760
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Bug: skia:
Change-Id: Ie6485a11bb57fecef470d727dcf3b4fe5dff0b90
Reviewed-on: https://skia-review.googlesource.com/c/195582
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Added explicit Linear segment type, merge math evaluation helpers for
scalar and color curves. Add logic to visitFields that cuts down on the
serialized size of simple curves, and makes the GUI easier to work with.
Remove the curve plot from the GUI. It was incorrect (wrong points at
cubic handle locations), not terribly helpful, and difficult to
maintain.
Bug: skia:
Change-Id: I190cb5d118b1f4b910984e4df50ee3351c8be895
Reviewed-on: https://skia-review.googlesource.com/c/195884
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
The other generator was never used (or useful). String-based serialization
of enums is quite helpful, though.
Bug: skia:
Change-Id: Ic9d58f8d20cfe7aba47722bd74f1e6f8f0f219e5
Reviewed-on: https://skia-review.googlesource.com/c/195368
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Add particle "frame" enum, to allow effects relative to local, world,
or velocity. Remove the "orient along velocity" and replace with a much
more general orientation affector (angle curve + frame). Add an angular
velocity affector to mirror the behavior of the linear velocity affector.
Bug: skia:
Change-Id: Ibbaaeb352c9547d00d81c7916d00148dd65ed2b9
Reviewed-on: https://skia-review.googlesource.com/c/195361
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This should severely cut down on the virtual call overhead when running
affectors. It also switches to model of "for each affector, do each
particle", rather than "for each particle, do each affector". This is
going to be an I$ improvement, and (if we ever care), make it possible
to do wide-mode threading of the affectors on disjoint blocks of
particles.
Bug: skia:
Change-Id: Ia4e8e8d461dba4e303c45766ea2b4ece1bca9196
Reviewed-on: https://skia-review.googlesource.com/c/195123
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Flag is helpful while editing things (and could be a useful property to
animate, as well). The curve change fixes a bug where the stable generator
gets out of phase if all segments of a curve don't use the same options.
Bug: skia:
Change-Id: Ie151e775aee22957e79fa88feaafad72b6c781ff
Reviewed-on: https://skia-review.googlesource.com/c/195120
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Adjust reference frame for affector to be consistent (so angles are
counted clockwise from "up" in both local and world modes).
Bug: skia:
Change-Id: I643e1484bc0a58d1f1c0cfe35ac2ab37dc2ea409
Reviewed-on: https://skia-review.googlesource.com/c/194189
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Move to a model that only needs floats, and puts the age in the
SkParticleState struct. Add a better test case for spawn affector
animation, to verify that things are still working.
Bug: skia:
Change-Id: I97d99de5f5d4cb302b76116e67ecc93368fb1677
Reviewed-on: https://skia-review.googlesource.com/c/193580
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
- Collapsed the per-particle data into a single struct, and
use that to communicate with drawables, too. Let the drawables
manage allocation of xforms, colors, etc. Helpful for non-atlas
drawables, and just to keep the effect code simpler.
- Having all of the params in a single struct allows us to move
the remaining animated behaviors into affectors (color/frame).
- Added SkColorCurve, which works like SkCurve for SkColor4f.
Use that to create a color affector (rather than simple
start/end colors in the effect params).
- Also put the stable random in SkParticleState. This is going
to be necessary if/when we change affectors to operate on all
particles (rather than one at a time). Still need to move t
value into the particle struct (or eval it from the lifetime
params on demand).
Change-Id: Icf39116acbfd5d6e8eb91e9affbd8898d106211d
Reviewed-on: https://skia-review.googlesource.com/c/193473
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
