Adds a 'varying' modifier to the SkSL frontend. Only valid
for pipeline stage (runtime effect) SkSL programs, and only
on variables that are float, or float[2-4].
Runtime effect SkSL can declare varyings. The effect gathers
and reflects them. The GPU backend uses SkShader_Base's new
asRuntimeEffect() to get this data.
GrDrawVerticesOp and its GP get the shader's effect, if any.
They use this to add vertex attributes, varyings, and global
variables (in the fragment shader) of the appropriate width.
The globals have procedurally generated names, based on
their index in the list ("_vtx_attr_%d"). The GP's fragment
code copies the varyings to the globals.
When PipelineStageCodeGenerator sees a varying reference,
it just replaces that with the procedurally generated name
that matches the logic in the op.
Change-Id: I0effbc4f3425d452cb7d62e51e268f3b48fa3c74
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/275962
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
- Expose shader error handler on GrBaseContextPriv
- Use that to report errors that happen during (late) SkSL conversion
- Remove various asserts. We expect these functions not to fail, but
they absolutely can for any kind of error that gets past the first
compile in SkRuntimeEffect::Make. We'll still make a GLSLFP, but it
won't inject any code, so the resulting shader will *also* fail to
compile. Injecting our own errors first gives the user a better idea
what's actually broken.
- SkSLSlide also reports errors via the error handler now, too.
Change-Id: I4b871cdaa5e3217b042ebf000bb7474afaeab04c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/275679
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
I've been increasingly concerned about the CPU and memory costs of
creating and holding on to many Compiler instances. Given that they're
use infrequently, having a shared (guarded) instance seems fine.
We can still look at reducing the startup cost of a single instance, but
this removes a large blocker to wider usage of SkRuntimeEffect.
Change-Id: Ia6dc721c73fdf8c9c4c7a8c1af5f350d2c028b22
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/272466
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
This reverts commit 7281a86237.
Change-Id: I1759358ede39e2466362cc4d3f0b9530eff08c9e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/271656
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This reverts commit 8980acd623.
Reason for revert: Win-Shared
Original change's description:
> Move runtime shader/colorfilter into SkRuntimeEffect.cpp
>
> Better organization that lets us share a bunch of code between these
> (very similar) objects.
>
> Change-Id: Ie559d6e144d8588b98a95d4170e2e6c19d9623bd
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270736
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
TBR=brianosman@google.com,ethannicholas@google.com,reed@google.com
Change-Id: Ic13d85b7c4f2d593a6c15dde067f118ea5753eb6
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/271600
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Better organization that lets us share a bunch of code between these
(very similar) objects.
Change-Id: Ie559d6e144d8588b98a95d4170e2e6c19d9623bd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270736
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: Icf8c69464a44341a08df16dce53aebedc2826bfd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/270064
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: I2ce210889452756d5d100fbb15f578bb72e2af2a
Bug: skia:9813
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/268687
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
We were never calling specialize() to bake in the values of ins,
so do that. Add uniformSize() to get the size of just the uniform
values. (The interpreter asserts that the size of the uniforms
being passed in matches the expected size from the ByteCode,
so these need to match up).
Added a unit test that uses both 'in' and 'uniform'.
Change-Id: I595822171211d35a17d5977fa790de0d1bbd6c78
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/263519
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Add framework for unit tests that draw (CPU and GPU) with a runtime
shader, as well as couple example tests.
Change-Id: I43b3b39e86634ec55521a2689a4c55c21939dce5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/262809
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Change-Id: I0b11d4210c6e663cfb4854fc33e1396fd79fe9a4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/261780
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
