Also fixes some additional style mishaps in class method names.
Change-Id: I49e7ac1aa91d84fef5fbc636552f040a2cb58c78
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/341466
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Our optimizer ignores index expressions, but has a few simplifications
that it can perform on swizzles. (Added extra code to SwizzleByIndex
which demonstrates this.)
Change-Id: If3c85a0456d98749008d796e422944b602ee6933
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/341460
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
We will need to emit a helper function to work around this case, as
GLSL supports swizzled out params, but Metal does not. In this CL, we
do not yet synthesize the helper function, but we annotate the code with
a comment indicating affected calls. (Of course, this will be replaced
with a helper function in a followup CL)
Even detecting a swizzle is actually an interesting problem, because
index expressions are sometimes actually swizzles, depending on the type
of the base expression. Also, the index or swizzle might be nested in
several other valid assignable expressions.
Change-Id: I8c74f9a7daec08eff1f32387f8b6b96851c1bd6e
Bug: skia:10855
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/341057
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Pointers require decorating the variable with a * to read back the
value, which the code generator did not properly handle. There was a
special case to add the * but it only supported assignment into the
variable, not reading back. References require no special decoration.
This change fixes compile errors in Functions.sksl with the "bar"
function. (This test marks `x` as an inout but never actually mutates
it.) It also allows us to remove a special-case workaround for `frexp`,
an intrinsic function which uses a reference for its out-parameter.
Additionally, this CL adds a non-inlining copy of "OutParams.sksl" to
the Metal test directory, as most of our tests which use out-parameters
end up inlining all the code, which hides these sorts of bugs.
Change-Id: I31c4db04f6b512b4cd4fe65b3347b82bdbf039cd
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/341000
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Previously, we would emit an invalid [[buffer(-1)]] annotation on the
block, causing the Metal compilation to fail.
Change-Id: I68b2439c05db3163686e84c5dcc9a5c43870ff67
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/340761
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Previously, this would generate invalid code such as `[[user(locn-1)]]`.
We now generate a more-useful error at SkSL compilation time.
Change-Id: Ifbe335ec6d4abcbdfe89b892ba51063c94d22b11
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/339397
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
- float4(float2(1, 2), 3, 4) --> float4(1, 2, 3, 4)
- half3(z, half2(fn(x), y*2)) --> half3(z, fn(x), y*2)
Single-argument constructors will be ignored by this optimization; these
might be casts or splats.
This had an unexpected side benefit of simplifying some Metal output,
as we need to output fewer Metal matrix construction helper functions
when matrices use more simple scalars for construction.
Change-Id: I0a161db060c107e35247901619291bf83801cb11
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/337400
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
This is a followup to http://review.skia.org/335196. This detects opaque
types (samplers and textures) at parsing or IR generation time and
reports an error regardless of backend. This check occurs before Metal
or SPIR-V would have a chance to detect the error, so it changes their
output to a slightly more focused error message. The Metal/SPIR-V fix in
the prior CL is still a nice broad catch-all for preventing spurious
ABORTs, though.
Change-Id: I4cce92a8767d72b5d3d7277a8afde8ce5ce86db2
Bug: skia:10956
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/335217
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>
Previously, MemoryLayout would ABORT if it encountered any types that
we can't layout in memory (e.g. opaque types like samplers). Instead of
an abort, this case is now detected cleanly and an error is reported
identifying the offending type.
This should unwedge the fuzzer, which appears to be very
enthusiatically generating interface blocks with nonsense types inside.
(Note that code generators which don't actually try to compute a memory
layout--that is, GLSL--will still accept these types. This should still
be caught and reported as an error, since it's still illegal in GLSL,
but that's for a future CL.)
Change-Id: I88a9649bcd8c75dadc8cca679f3c5e94570742bc
Bug: skia:10956, oss-fuzz:27525
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/335196
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>
Metal-specific tests are pretty thin on the ground here, and some of
the remaining tests no longer added value as they were already covered
pretty well by existing tests in Shared. The majority of remaining tests
were specific to Metal's lack of flexible matrix casting (and SkSL's
ability to paper over this with helper functions).
Change-Id: I7b3c445268b95320e7f46ec88d793c315d43ee8a
Bug: skia:10694
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/334956
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
