Commit Graph

225 Commits

Author SHA1 Message Date
John Stiles
7e248716e7 Clean up SkSL test compilation in preparation for Metal support.
Now uses a GN template to avoid copy-pasting the same logic for each
type of test we want to perform, and the same file to be compiled in
more than one way at a time via an extra flag to compile_sksl_tests.py.

Change-Id: I8aadedeb140d78d58a345a2bac0da3d9c77e9a19
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319347
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2020-09-25 16:44:54 +00:00
John Stiles
59b2a92c96 Add new unit tests for SkSL.
These cover:
- Properly configured out-params
- Invalid/non-lvalue out-params, which currently cause an SkSL crash
- Interactions between the inliner and variable swizzles

Change-Id: I4874101236084f273e704d8717149b431d813883
Bug: skia:10753
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319036
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-23 20:30:47 +00:00
John Stiles
647a9bd7c2 Convert the remaining FP tests to golden outputs.
(Removed one test, SkSLFPSwitchWithMultipleReturnsInside, because it was
redundant with existing tests.)

Change-Id: I1bfc069babdb5eb0cc515f195c3a2e307bb5871a
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/319029
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-23 16:21:58 +00:00
John Stiles
5f35ac9faa Add unit test for swizzling booleans.
This test currently crashes skslc, but will be fixed in the followup CL.

Change-Id: I3683d94a310242e8ca67560296518fd1223b28d0
Bug: oss-fuzz:25781
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/318656
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-22 18:47:19 +00:00
John Stiles
371fde549e Rename 'DefaultSettings' golden outputs to 'StandaloneSettings'.
I realized that "DefaultSettings" as a name suffix was unclear, because
"Default" is a different settings mode from skslc running with
--nosettings.
In --nosettings mode, skslc uses "standalone" settings.

Change-Id: I1f5d80df0a21cec55948c4ad146169bcb34f4999
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/318210
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2020-09-21 22:15:51 +00:00
John Stiles
2b788b11e0 Create golden outputs for SkSL blend functions.
Several blend functions generate a surprisingly large amount of code,
and appear to have opportunities for further optimization. At any rate,
if we make compiler changes that would affect the output of a blend
function, I think we would want to see the changes reflected in our
golden outputs.

Change-Id: Iff612dcd4bad8824b5e6e97413ffce19e5ea1c0e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/318336
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-21 21:53:41 +00:00
John Stiles
881a10c6e8 Revert "Add program-settings flag to disable the inliner."
This reverts commit 910845fac1.

Reason for revert: IRGenerator inline change reverted

Original change's description:
> Add program-settings flag to disable the inliner.
>
> Change-Id: I6c4e7f6a2aab6710221029022a3a5f3ec323c5e2
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317856
> Commit-Queue: John Stiles <johnstiles@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>

TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com

Change-Id: Ie38a29495ea8497f9db26d2603df179e696ac5ff
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317977
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2020-09-19 14:13:54 +00:00
John Stiles
ca4d074d54 Fix unit test for InlinerWrapsEarlyReturnsWithDoWhileBlock.
This resolves the following TODO block:
   TODO(johnstiles): the skslc standalone caps bits do not enable
   do-while support, so this test does not actually perform as
   described; the `returny` function is not inlined at all. This will
   be fixed when customizable caps-bit support is added to the golden
   tests.

Change-Id: I3495e4813b9be37264a8fda978453594c1f5fa13
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317859
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-18 21:08:52 +00:00
John Stiles
64fc15a279 Add unit test for a dead do-while loop.
Ideally the optimizer should be able to detect and remove this loop.
This CL establishes a baseline.

Change-Id: I6aba0b52fe49552f170fca25d81c29c515044ef5
Bug: skia:10737
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317861
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-18 20:57:12 +00:00
John Stiles
910845fac1 Add program-settings flag to disable the inliner.
Change-Id: I6c4e7f6a2aab6710221029022a3a5f3ec323c5e2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317856
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-18 20:30:22 +00:00
John Stiles
be0a9ca63d Migrate remaining SkSL GLSL tests to golden outputs.
Change-Id: I72fd3083f75ca5bf74fb2c3b032465864a13aed5
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317771
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-18 19:22:19 +00:00
John Stiles
87e6ccde21 Migrate geometry SkSL tests to golden outputs.
Change-Id: I01c150d6bfcdd1500033521a87c058c7428c3521
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317769
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2020-09-18 17:34:22 +00:00
John Stiles
c884631f99 Migrate Derivatives tests to golden outputs.
Change-Id: I35ff25c4cc394c1a4a964207ece87095a9ba84cf
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317767
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-18 17:30:07 +00:00
John Stiles
6798e5d0d1 Migrate SkSL error tests to golden outputs.
Change-Id: Ic8f4730d035981c32b4ddb48e5e919b0396b6d93
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317578
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2020-09-18 13:46:17 +00:00
Brian Osman
bf2163f267 SkSL: Only allow bitwise ops on integral types
We were allowing these ops on floating point types. The resulting GLSL
would fail to compile. We also allowed >>= and <<= on vectors (but not
any of the other bitwise ops).

The newly added unit tests were failing (eg, not catching errors). New
results are correct.

Bug: skia:10707
Change-Id: I97b769f1ce59261361109a71061b42dc8ef3c74b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317393
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2020-09-17 18:12:34 +00:00
John Stiles
6dc5265ae6 Migrate several SkSLFP tests to golden outputs.
Change-Id: I83a38f2c953a560fea3483e95e31df532b90773e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317456
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-17 16:46:18 +00:00
John Stiles
0ed9f31f6a Migrate several GLSL workaround unit tests to golden files.
We now support building an SkSL golden output twice, once honoring the
custom #pragma settings, and once more ignoring the settings. This
allows us to see the output of the workaround technique, alongside the
"default-settings" output which should not contain a workaround.

To implement this, skslc now supports a flag: --[no]settings.
When it's set, /*#pragma settings*/ comments are honored. When it's not
set, skslc ignores the comments. compile_sksl_tests.py passes this flag
along to skslc.

This approach is not strictly limited to workarounds; the
"TypePrecision" GLSL test was also updated to use this technique.

Change-Id: I79204df047b024533ed6bc1f4c088e0e878d5bb1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317246
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-17 16:41:18 +00:00
John Stiles
72664bede4 Add support for #pragma settings comments in SkSL.
This will allow us to write skslc-based golden tests that deviate from
the standalone skslc settings.

This CL provides six options; more will be added as necessary.
- Default (caps)
- UsesPrecisionModifiers (caps)
- Version110 (caps)
- Version450Core (caps)
- ForceHighPrecision (settings flag bit)
- Sharpen (settings flag bit)

Change-Id: I9b779e039b2f0c0ccf43dca226fb4844aff3526b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317237
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-16 22:19:58 +00:00
John Stiles
9080540b93 Convert additional GLSL tests to use golden files.
A handful of simplifications were made, but these hew very close to the
original tests and are intended to cover the exact same ground. The
remaining unconverted tests depend on non-default caps bits and will
be updated once caps handling in skslc is fully landed.

Change-Id: I3f3c29bf87f73e501561d7bfcdaabe8acc14b89f
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317390
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2020-09-16 20:11:17 +00:00
John Stiles
7f6378f7f8 Migrate swizzle tests to golden SkSL files.
This simplifies life when revising the swizzle logic.

Change-Id: I7fc63c0cc845c4741c17c82b3078040264b61ba0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/317379
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-16 18:16:07 +00:00
John Stiles
f2cdf59d58 Migrate SkSL inliner tests to golden files.
Our lack of proper caps-bits controls in skslc affects the outcome of
one test: "InlinerWrapsEarlyReturnsWithDoWhileBlock" does not actually
emit the do-while block because the standalone caps bits don't enable
do-while support. This will be fixed in a followup CL that adds caps-bit
support to our tests.

A few tests were renamed for consistency, a few were simplified slightly
and one test was removed because it was simply redundant (there was a
second test that covered the exact same ground as
`ForWithReturnInsideCannotBeInlined`).

Change-Id: I2e3b97cb3aea331b6d806bdb865aa78c35c7a6b9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316997
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2020-09-15 15:22:12 +00:00
John Stiles
8f026259d8 Demonstrate name reuse error in inliner.
The following conditions lead to the error:
- A pair of nested functions, both of which must be inlined.
- Both inlined functions create a variable with the same name.
- The outer function passes its variable to the inner function.
- The initialization of the inner variable uses the value from the outer
  variable.
- The inner function does not mutate the variable, use it as an out-
  parameter, or otherwise cause it to receive a temporary copy.

When all these conditions are met, both variable declarations are
inlined as-is without performing any name salting, because it's
seemingly safe to do so. The name overlap issue is not considered in the
safety checks. Inlined variable declarations are not subject to name
salting but they should be; I suspect other adversarial examples could
be crafted as well where unhandled name overlap leads to errors.

Change-Id: Ia754bee8e45c8a5c7548436594bbf04abc7a8396
Bug: skia:10722
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316945
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-15 13:03:22 +00:00
John Stiles
b0245494c6 Convert several SkSL->GLSL unit tests to golden outputs.
The new test files are intended to be identical to the unit tests in
every meaningful way. (Comments and formatting are not preserved
exactly.) In cases where a unit-test method contained more than one
test, multiple test files were created; in these cases, new names were
invented to match the apparent intent of each invocation.

Followup CLs will continue to migrate additional tests.

Change-Id: I785c6761ba7ee2b25b5ddc0108321734be23b77c
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316678
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-14 22:11:20 +00:00
John Stiles
ea9e7ca1ce Support testing error cases in our SkSL unit test goldens.
Change-Id: I56e19153597e2c4393c5821314b82937828c0d50
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316569
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-09-14 21:23:07 +00:00
John Stiles
d836f84ab8 Generate SkSL golden output files from test inputs during the build.
Golden SkSL outputs are intended to eventually replace the majority of
our unit tests, since they can automatically update themselves when we
change implementation details of the compiler.

If you change the compiler output without updating the Golden files, the
CheckGeneratedFiles housekeeper will be triggered. Set
`skia_compile_processors` or `skia_compile_sksl_tests` to true in your
GN args to regenerate them.

Almost all of the tests from SkSLFPTests.cpp and SkSLGLSLTests.cpp can
be migrated into separate unit-test .fp/.sksl files in a followup CL.

hcm@ has signed off on removing the copyright boilerplate preamble from
our unit test files.

Change-Id: I9e24a944bbac8f8efd62c92481b022a0b1ecdd0b
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316336
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2020-09-14 14:54:12 +00:00