Commit Graph

161 Commits

Author SHA1 Message Date
John Stiles
c6218799a6 Reland "Eliminate DSLPossibleExpression."
This reverts commit 193c16380f.

Reason for revert: fixed google3 warning

Original change's description:
> Revert "Eliminate DSLPossibleExpression."
>
> This reverts commit f2d000328f.
>
> Reason for revert: breaking google3 roll
>
> Original change's description:
> > Eliminate DSLPossibleExpression.
> >
> > The Possible(Expression|Statement) classes were added at
> > http://review.skia.org/375069. These classes were responsible for
> > capturing `__builtin_FILE()` and `__builtin_LINE()` when an
> > expression or statement was added to a hand-authored DSL program. This
> > allowed errors to be reported on the C++ file/line where they were
> > encountered. This was a good feature to have, when the plan was to
> > author the majority of SkSL code via DSL.
> >
> > Later, IRNode positions were converted from an integer line number to
> > SkSL Positions at http://review.skia.org/518137. This gave us range
> > tracking, but at a high memory cost (16 bytes per IRNode, versus four
> > bytes when we tracked line numbers only).
> >
> > Positions were reduced to 8 bytes at http://review.skia.org/521005 by
> > removing the filename, which was only used for hand-authored DSL. (The
> > size was pared all the way back to 4 bytes at
> > http://review.skia.org/533699 by packing the data more efficiently.)
> >
> > __builtin_FILE/LINE capturing was removed entirely at
> > http://review.skia.org/528366; the filename was discarded anyway and
> > the line number didn't have a range and wasn't very meaningful without
> > a filename. Also, it didn't matter very much since we no longer intended
> > to hand-craft our programs in DSL.
> >
> > At this stage, DSLPossibleExpression stopped adding value and simply
> > served to move Expressions around.
> >
> > Change-Id: I29ac33e08dcc1804cc0619c1e8856ba28ebcc51d
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542145
> > Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
> > Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
> > Auto-Submit: John Stiles <johnstiles@google.com>
>
> Change-Id: I33badbdcce8760200246bf50e4932d42721ea952
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/543078
> Reviewed-by: Tyler Denniston <tdenniston@google.com>
> Owners-Override: Kevin Lubick <kjlubick@google.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Commit-Queue: Tyler Denniston <tdenniston@google.com>

Change-Id: I71f248b2343806f85cad5f0661470c95334bbe22
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/545236
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2022-05-31 14:32:16 +00:00
Kevin Lubick
2c65579aad [bazel] Add in hierarchical filegroup Bazel rules.
The primary goal of this organization structure is to keep
our top level BUILD.bazel file short, with as little logic
as feasible. The logic required to control which files to
include, which third_party deps are needed, what system libraries
should be linked again, etc, should be in the BUILD.bazel
file best should be as close to the affected files as feasible.

In essence, we use filegroup() rules to bubble up the files
needed to build Skia (all as one big cc_library call) and
cc_library rules to bubble up the other components needed to build.

For example, //src/ports/SkFontHost_FreeType.cpp needs FreeType,
but only if we are compiling Skia with that type of font
support. With the new organization structure in this CL,
//src/ports/BUILD.bazel should have the logic that determines
if the cpp file should be included in the build of Skia and
if it is, that the Skia build should depend on //third_party:freetype2

Another example is //src/gpu/ganesh/BUILD.bazel, which
chooses which of the dawn, gl, vulkan, etc backend sources,
and the associated dependencies to include in the build.
It does not specify what those are, but delegates to the
BUILD.bazel files in the subdirectories housing the
backend-specific code.

The structure guidelines for BUILD.bazel files are as follows:
 - Have a filegroup() called "hdrs" (for public headers) or
   "srcs" (for private headers and all .cpp files) that is
   visible to the parent directory. This should list the
   files from the containing directory to include in the
   build.
   See //include/core/BUILD.bazel and //src/effects/BUILD.bazel
   as examples.
 - filegroup() rules can list a child directory's "hdrs"
   or "srcs" in their "srcs" attributes, but should not contain
   select statements pertaining to child directory files.
   See //include/gpu/BUILD.bazel and //src/gpu/ganesh/BUILD.bazel
   as examples.
 - May have a cc_library() called "deps". This can specify
   dependencies, cc_opts, and linkopts, but not srcs or hdrs. [1]
   See //src/codec/BUILD.bazel as an example. These should
   be visible to the parent directory.
 - "hdrs", "srcs", and "deps" for the primary Skia build
   (currently called "skia_core") should bubble up through
   //include/BUILD.bazel and //src/BUILD.bazel, one directory
   at a time.

This CL demonstrates a very basic build of Skia with many features
turned off (CPU only, no fonts, no codecs). Follow-on CLs will
add to these rules as more targets are supported. See bazel/Makefile
for the builds that work with just this CL.

Suggested Review Order:
 - //BUILD.bazel to see the very small skia_core rule which
   delegates all the logic down stack. Note that it has a
   dependency on //bazel:defines_from_flags which will set
   all the defines listed there when compiling all the
   .cpp and .h files in skia_core *and* anything that depends
   on skia_core, but *not* //src:deps.
 - //include/BUILD.bazel and other BUILD.bazel files in the
   subdirectories of that folder. Note that the filegroups in
   //include/private/... are called "srcs" to be similar to
   how Bazel wants "private headers" to be in the "srcs" of
   cc_library, cc_binary, etc. and only public headers are
   to be in "hdrs" [2].
 - //src/BUILD.bazel and other BUILD.bazel files in the
   subdirectories of that folder. //src/gpu/ganesh/...
   will be filled in for dawn, vulkan, and GL in the next CL.
 - //PRESUBMIT.py, which adds a check that runs buildifier [3]
   on modified BUILD.bazel files to make sure they stay
   consistently formatted.
 - //bazel/... to see the new option I added to make sksl
   opt-in or opt-out, so one could build Skia with sksl,
   but not with a gpu backend.
 - Misc .h and .cpp files, whose includes were removed if
   unnecessary or #ifdef'd out to make the minimal build
   work without GPU or SkSL includes.
 - //bazel/Makefile to see the builds that work with this CL.

[1] Setting srcs or hdrs is error-prone at best, because those
   files will be compiled with a different set of defines than
   the rest of skia_core, because they wouldn't depend on
   //bazel:defines_from_flags.
[2] https://bazel.build/reference/be/c-cpp#cc_library.hdrs
[3] https://github.com/bazelbuild/buildtools/releases
Change-Id: I5e0e3ae01ad42d672506d5aad1239f2512188191
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/543977
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-05-31 14:14:54 +00:00
Kevin Lubick
4511c7b7fb [bazel] Delete gazelle-based BUILD.bazel files
gazelle ended up being more liability than asset for our C++ rules.

It required devs to manually run the command frequently (and was
easy to forget until the CQ failed). The fact that we still had to
edit the source files (e.g. the "srcs" cc_libraries) meant that
the mixture between generated and hand-written caused some
tension (see include/third_party/vulkan for a good example).

The combination of gazelle and our IWYU enforcement added several
bits of churn without any real benefit. The generated rules
also didn't help identify cases where we were not keeping tight
boundaries (e.g. non-gpu code and gpu code).

Identifying third_party deps automatically ended up being trickier
than anticipated (see the deleted //third_party/file_map_for_bazel.json)

Using the "maximum set of dependencies" worked ok, but ended up
increasing build time unnecessarily. For example, compiling
CanvasKit for WebGL always needed to compile Dawn because
SkSLCompiler.cpp sometimes needs to include tint/tint.h.

Follow-up CLs will rebuild the BUILD.bazel rules without gazelle.

Note to Reviewers:
 - The only file worth manually reviewing here is bazel/Makefile.

Change-Id: I36d6fc3747487fabaf699690780c95f1f6765770
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/543976
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-05-31 14:14:54 +00:00
Tyler Denniston
193c16380f Revert "Eliminate DSLPossibleExpression."
This reverts commit f2d000328f.

Reason for revert: breaking google3 roll

Original change's description:
> Eliminate DSLPossibleExpression.
>
> The Possible(Expression|Statement) classes were added at
> http://review.skia.org/375069. These classes were responsible for
> capturing `__builtin_FILE()` and `__builtin_LINE()` when an
> expression or statement was added to a hand-authored DSL program. This
> allowed errors to be reported on the C++ file/line where they were
> encountered. This was a good feature to have, when the plan was to
> author the majority of SkSL code via DSL.
>
> Later, IRNode positions were converted from an integer line number to
> SkSL Positions at http://review.skia.org/518137. This gave us range
> tracking, but at a high memory cost (16 bytes per IRNode, versus four
> bytes when we tracked line numbers only).
>
> Positions were reduced to 8 bytes at http://review.skia.org/521005 by
> removing the filename, which was only used for hand-authored DSL. (The
> size was pared all the way back to 4 bytes at
> http://review.skia.org/533699 by packing the data more efficiently.)
>
> __builtin_FILE/LINE capturing was removed entirely at
> http://review.skia.org/528366; the filename was discarded anyway and
> the line number didn't have a range and wasn't very meaningful without
> a filename. Also, it didn't matter very much since we no longer intended
> to hand-craft our programs in DSL.
>
> At this stage, DSLPossibleExpression stopped adding value and simply
> served to move Expressions around.
>
> Change-Id: I29ac33e08dcc1804cc0619c1e8856ba28ebcc51d
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542145
> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
> Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>

Change-Id: I33badbdcce8760200246bf50e4932d42721ea952
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/543078
Reviewed-by: Tyler Denniston <tdenniston@google.com>
Owners-Override: Kevin Lubick <kjlubick@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Tyler Denniston <tdenniston@google.com>
2022-05-23 15:04:00 +00:00
John Stiles
f2d000328f Eliminate DSLPossibleExpression.
The Possible(Expression|Statement) classes were added at
http://review.skia.org/375069. These classes were responsible for
capturing `__builtin_FILE()` and `__builtin_LINE()` when an
expression or statement was added to a hand-authored DSL program. This
allowed errors to be reported on the C++ file/line where they were
encountered. This was a good feature to have, when the plan was to
author the majority of SkSL code via DSL.

Later, IRNode positions were converted from an integer line number to
SkSL Positions at http://review.skia.org/518137. This gave us range
tracking, but at a high memory cost (16 bytes per IRNode, versus four
bytes when we tracked line numbers only).

Positions were reduced to 8 bytes at http://review.skia.org/521005 by
removing the filename, which was only used for hand-authored DSL. (The
size was pared all the way back to 4 bytes at
http://review.skia.org/533699 by packing the data more efficiently.)

__builtin_FILE/LINE capturing was removed entirely at
http://review.skia.org/528366; the filename was discarded anyway and
the line number didn't have a range and wasn't very meaningful without
a filename. Also, it didn't matter very much since we no longer intended
to hand-craft our programs in DSL.

At this stage, DSLPossibleExpression stopped adding value and simply
served to move Expressions around.

Change-Id: I29ac33e08dcc1804cc0619c1e8856ba28ebcc51d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542145
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2022-05-23 13:56:41 +00:00
John Stiles
3dc829746a Eliminate vtable from DSLVar class hierarchy.
The only usage of `virtual` was the `storage()` method. This value is
now stored in a member variable. It is packed next to a bool so it
should be ~zero extra space, versus 8 bytes for a vtable pointer. We
also save cost of a virtual dtor call every time a DSLVar goes away.

Because VariableStorage is not a public type, this required shuffling
some constructors around to live in the cpp instead of the header.

Change-Id: I9fdefc3696d123848fb567029c051b478349cec7
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542139
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2022-05-19 19:57:19 +00:00
John Stiles
5fa8655f67 Simplify DSLVar assignment.
It can live in the base class instead of having matching implementations
in each subclass. Also, there didn't seem to be a reason to have a
templated and non-templated version which did the same thing.

Change-Id: I312af9e71561d847580430000fbfae6fa99fe837
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542140
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-05-19 19:03:17 +00:00
John Stiles
a6178be7d1 Require DSL variables to have names.
The DSLVar class hierarchy had many constructor variations to support
the idea of creating DSL variables without explicitly assigning a name
to them. Instead, name-mangling would automatically assign them a name
like `_123_var`. This was designed to make it easlier to write a
complete shader in DSL.

We no longer have DSL name-mangling, or intend to create complete
programs in pure DSL. In the absence of name-mangling, these
constructors aren't useful (every variable would be named `var`).
They have been removed.

Change-Id: If533e479cc04c5a6ced9a7e880dcc56063f29374
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542138
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-05-19 16:57:29 +00:00
John Stiles
effd0aeccd Reland "Remove DSLWrapper helper class."
This reverts commit 37c03c8d73.

Reason for revert: using vector<> to avoid skia:13339

Original change's description:
> Revert "Remove DSLWrapper helper class."
>
> This reverts commit 3b4f862d05.
>
> Reason for revert: might have caused chromium:1326848
>
> Original change's description:
> > Remove DSLWrapper helper class.
> >
> > Without an `operator=` on our expressions and variables, we no longer
> > need to wrap all our expressions with a helper.
> >
> > Change-Id: I8110079f61c9ad01997f7c4b376db223dc4b6e17
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541063
> > Commit-Queue: John Stiles <johnstiles@google.com>
> > Auto-Submit: John Stiles <johnstiles@google.com>
> > Reviewed-by: Brian Osman <brianosman@google.com>
>
> Change-Id: I7efb3004913f7c85dc551d9740a6b31971de52d2
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541736
> Auto-Submit: John Stiles <johnstiles@google.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>

Change-Id: If6dd5d3187a4623ae732335b8215f4350e45cd2b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542137
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-05-19 14:49:56 +00:00
John Stiles
8ad9c82d30 Remove VarUniformHandle DSL method.
This was only used by DSL fragment processors and is unreferenced.
This removal causes the uniform-handle value in DSLVarBase to become
unreferenced as well.

Change-Id: Ifc89a3dda93f08c40341f654981bbb6593d4fb9f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541745
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2022-05-19 13:14:42 +00:00
John Stiles
8366527b9b Reland "Remove operator= from DSL expression types."
This reverts commit 4b354dfb5b.

Reason for revert: not responsible for chromium:1326848

Original change's description:
> Revert "Remove operator= from DSL expression types."
>
> This reverts commit b143520625.
>
> Reason for revert: might have caused chromium:1326848
>
> Original change's description:
> > Remove operator= from DSL expression types.
> >
> > This means that in raw DSL code, `foo = bar` will need to be written as
> > `foo.assign(bar)`. This is admittedly slightly less convenient. However,
> > in practice, raw DSL code is very rare, and in fact we only had one
> > use-case for operator= across all of our code. This change will allow us
> > to simplify the DSL parser by eliminating the `DSLWrapper` helper class,
> > which was only needed because we overloaded `operator=`.
> >
> > Change-Id: I4fbc39b2c1443fc26a761d424c52e3b9b59169eb
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541062
> > Commit-Queue: John Stiles <johnstiles@google.com>
> > Auto-Submit: John Stiles <johnstiles@google.com>
> > Reviewed-by: Brian Osman <brianosman@google.com>
>
> Change-Id: I7c7e032c465aba004ba78fd69650c8037e019861
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541737
> Auto-Submit: John Stiles <johnstiles@google.com>
> Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
> Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>

Change-Id: I0814f87e360b5574d4a06764bbfa747c49820774
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/542136
Commit-Queue: John Stiles <johnstiles@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
2022-05-19 13:05:55 +00:00
John Stiles
e76f507164 Remove variable-declared flags from DSLVarBase.
The DSLVarBase `fDeclared` field was used to track whether a variable
was created with `Var`, but never declared with a matching `Declare`, in
a hand-authored DSL program. This was expected to be a common source of
slip-ups in hand-authored DSL, so we tracked it and printed a handy
error message if `Declare` was ever missing. However, this complicated
testing, because in tiny test snippets we _do_ want the ability to
create variables without necessarily declaring them. So, we had a
separate program setting to disable enforcement for test code.

For programs created in DSLParser, tracking this state is unnecessary;
the parser won't ever forget to declare variables.

Since hand-authored DSL programs are no longer expected to be
commonplace, we can remove the state tracking and the associated
ProgramSettings field entirely.

Change-Id: I32b28f8a2ca6591d3da80cd974fff8101f5a4be8
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541638
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
2022-05-18 15:54:42 +00:00
John Stiles
d35e9151bc Remove automatic name mangling from DSL.
This feature is always disabled when DSLParser is used. Name mangling
was only useful when compiling hand-authored DSL code that explicitly
declared two variables with the same name in separate scopes. In
practice, as long as we aren't declaring complete programs in DSL form,
we don't need this.

Change-Id: Icad921eb86365b3b114ff1872b1c40c41470a4b4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541637
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2022-05-18 15:54:42 +00:00
John Stiles
91e4c7847e Remove C++14 workaround code.
We no longer support compiling in C++14, so we don't need these
workarounds anymore.

Change-Id: Idec5a90e98c242928182f4b32dd47459be8ca47f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541075
Reviewed-by: Arman Uguray <armansito@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Arman Uguray <armansito@google.com>
2022-05-18 13:53:00 +00:00
John Stiles
4b354dfb5b Revert "Remove operator= from DSL expression types."
This reverts commit b143520625.

Reason for revert: might have caused chromium:1326848

Original change's description:
> Remove operator= from DSL expression types.
>
> This means that in raw DSL code, `foo = bar` will need to be written as
> `foo.assign(bar)`. This is admittedly slightly less convenient. However,
> in practice, raw DSL code is very rare, and in fact we only had one
> use-case for operator= across all of our code. This change will allow us
> to simplify the DSL parser by eliminating the `DSLWrapper` helper class,
> which was only needed because we overloaded `operator=`.
>
> Change-Id: I4fbc39b2c1443fc26a761d424c52e3b9b59169eb
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541062
> Commit-Queue: John Stiles <johnstiles@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

Change-Id: I7c7e032c465aba004ba78fd69650c8037e019861
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541737
Auto-Submit: John Stiles <johnstiles@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
2022-05-18 13:22:08 +00:00
John Stiles
37c03c8d73 Revert "Remove DSLWrapper helper class."
This reverts commit 3b4f862d05.

Reason for revert: might have caused chromium:1326848

Original change's description:
> Remove DSLWrapper helper class.
>
> Without an `operator=` on our expressions and variables, we no longer
> need to wrap all our expressions with a helper.
>
> Change-Id: I8110079f61c9ad01997f7c4b376db223dc4b6e17
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541063
> Commit-Queue: John Stiles <johnstiles@google.com>
> Auto-Submit: John Stiles <johnstiles@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

Change-Id: I7efb3004913f7c85dc551d9740a6b31971de52d2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541736
Auto-Submit: John Stiles <johnstiles@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
2022-05-18 13:21:07 +00:00
John Stiles
3b4f862d05 Remove DSLWrapper helper class.
Without an `operator=` on our expressions and variables, we no longer
need to wrap all our expressions with a helper.

Change-Id: I8110079f61c9ad01997f7c4b376db223dc4b6e17
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541063
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-05-17 13:38:48 +00:00
John Stiles
b143520625 Remove operator= from DSL expression types.
This means that in raw DSL code, `foo = bar` will need to be written as
`foo.assign(bar)`. This is admittedly slightly less convenient. However,
in practice, raw DSL code is very rare, and in fact we only had one
use-case for operator= across all of our code. This change will allow us
to simplify the DSL parser by eliminating the `DSLWrapper` helper class,
which was only needed because we overloaded `operator=`.

Change-Id: I4fbc39b2c1443fc26a761d424c52e3b9b59169eb
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541062
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-05-17 13:38:27 +00:00
Brian Osman
3cbb13a93b Reland "Add SkCapabilities object"
This is a reland of commit 69fecd6c2d

Original change's description:
> Add SkCapabilities object
>
> This describes the capabilities of a particular Skia rendering context
> (GPU context, or the CPU backend). At the moment, it only contains the
> supported SkSL version (with a new enum added to specify the current
> value as "100" and a new ES3 value as "300".
>
> SkCapabilities can not be retrieved from an SkCanvas - the client must
> have a concrete way of knowing what their destination device that will
> do the actual rendering is (GrCaps or SkSurface).
>
> This CL doesn't make use of the SkCapabilities yet, that's coming in
> follow-up CLs that alter the SkSL compiler and SkRuntimeEffect API.
>
> Bug: skia:11209
> Change-Id: I4e9fd21ff7ffd79f1926c5c2eb34e10b3af4bc9b
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/537876
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: John Stiles <johnstiles@google.com>

Bug: skia:11209
Change-Id: If76343a8a536ade25f6b3d80e0885c7bc47d2adf
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/540919
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2022-05-17 13:15:06 +00:00
John Stiles
40bd208dcc Remove DSL runtime effect support.
DSL runtime effects were unused outside of test code.

Change-Id: I561afc533c7c204183968aff0b9c4389b0587114
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/540917
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2022-05-16 20:04:43 +00:00
Brian Osman
88a51fea63 Revert "Add SkCapabilities object"
This reverts commit 69fecd6c2d.

Reason for revert: Why do we even bother separating include from src?

Original change's description:
> Add SkCapabilities object
>
> This describes the capabilities of a particular Skia rendering context
> (GPU context, or the CPU backend). At the moment, it only contains the
> supported SkSL version (with a new enum added to specify the current
> value as "100" and a new ES3 value as "300".
>
> SkCapabilities can not be retrieved from an SkCanvas - the client must
> have a concrete way of knowing what their destination device that will
> do the actual rendering is (GrCaps or SkSurface).
>
> This CL doesn't make use of the SkCapabilities yet, that's coming in
> follow-up CLs that alter the SkSL compiler and SkRuntimeEffect API.
>
> Bug: skia:11209
> Change-Id: I4e9fd21ff7ffd79f1926c5c2eb34e10b3af4bc9b
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/537876
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: John Stiles <johnstiles@google.com>

Bug: skia:11209
Change-Id: I3bc843b0abf154dbaecb209b251f80741757bf70
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/540858
Commit-Queue: Brian Osman <brianosman@google.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
2022-05-16 16:32:03 +00:00
Brian Osman
69fecd6c2d Add SkCapabilities object
This describes the capabilities of a particular Skia rendering context
(GPU context, or the CPU backend). At the moment, it only contains the
supported SkSL version (with a new enum added to specify the current
value as "100" and a new ES3 value as "300".

SkCapabilities can not be retrieved from an SkCanvas - the client must
have a concrete way of knowing what their destination device that will
do the actual rendering is (GrCaps or SkSurface).

This CL doesn't make use of the SkCapabilities yet, that's coming in
follow-up CLs that alter the SkSL compiler and SkRuntimeEffect API.

Bug: skia:11209
Change-Id: I4e9fd21ff7ffd79f1926c5c2eb34e10b3af4bc9b
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/537876
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
2022-05-13 16:31:20 +00:00
Kevin Lubick
c3a448ec61 [bazel] Put licenses() after legacy_exports
G3 prefers license() first.

This was done mechanically with a big find/replace

Change-Id: I8c33c7bc10a6bec42e966cad81c259954e841811
Bug: skia:13211
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/535898
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-05-02 15:04:33 +00:00
Kevin Lubick
46eaab3959 [bazel] Add shims to help translation into G3
Ran the following commands:
find -name "BUILD.bazel" -exec sed -i -e '1iload("//bazel:macros.bzl", "cc_library", "exports_files_legacy")\nexports_files_legacy()' {} +
buildifier --lint=fix --mode=fix -r .

This had the effect of making sure we can export all of our
files in G3 (until we no longer have legacy targets) and
making all of our cc_libraries shim-able.

bazel/macros.bzl has the human-contributed changes, the rest
were mechanical.

Change-Id: I8e24e30e74b038cfd072cdbe4078bfd1d213dd46
Bug: skia:13211
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/535359
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-04-29 19:27:54 +00:00
John Stiles
850de30a19 Fit Position in 4 bytes.
This limits our error reporting to the first 16MB of SkSL code in a
program, and error marks are limited to a run of 255 characters or
less. In practice, these limits do not affect normal code in any way.
This gives us the same tight memory footprint we originally had when
positions were stored as `int32 fLine`.

Change-Id: Idef04344324870a7b92aca154feb5e1a0121d284
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/533699
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2022-04-27 00:01:06 +00:00
John Stiles
afa53f2e0b Replace Position::fEndOffset with fLength.
In a followup, this will make it easier to save memory.

Change-Id: I33e9838d1b3170362f4e7c58ba5f60a1928a4b55
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/533698
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
2022-04-27 00:01:06 +00:00
John Stiles
32902b3c82 Add Ethan and John to OWNERS for include/sksl/.
Change-Id: I1bf6a41290eebd45e2065fcedf86ef2e20866f54
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/534197
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
2022-04-26 23:38:58 +00:00
Ethan Nicholas
d418ddbfc5 Improved SkSL error positions for return types
Bug: skia:13169
Change-Id: Icf0b720d3e3a13d490aba8495cf9db83d1d62318
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/532762
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-22 19:13:45 +00:00
Ethan Nicholas
56217f0722 Improved positions of variable name errors
Bug: skia:13170
Change-Id: I11ef0ea5ac3ae61b24a47805bb3290a37880cfee
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/532536
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-22 14:39:14 +00:00
Ethan Nicholas
ccd85d5835 Improved positions of for loop errors
Bug: skia:13173
Change-Id: Ifbcce77605dd781563568293fc501dfa31f143da
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528706
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-21 16:56:12 +00:00
Ethan Nicholas
87e472722f Improved error reporting ranges for swizzles
Bug: skia:13171
Change-Id: I6dffb98ac2464f930995cf8ea57e422091d20fd2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/531743
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-20 20:46:51 +00:00
Kevin Lubick
83cee23c98 [bazel] Run buildifier on BUILD.bazel files
buildifier --lint=fix -r .

Change-Id: I6a41858270d20137978f8271c8f6160b51120777
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/529751
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-04-14 18:13:43 +00:00
Kevin Lubick
b98328a27b [bazel] Add license to all our BUILD.bazel files
find -name "BUILD.bazel" -exec sed -i -e '1i licenses(["notice"])\n' {} +

Change-Id: Ie48f163b7d8d6ede9ba5f952e87232dd5c9fa8e6
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/529808
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-04-13 19:50:29 +00:00
Ethan Nicholas
885c1d3048 Removed Position::Capture
It was decided that being able to report positions from C++ code is not
worth the cost of having all of these captures everywhere.

Change-Id: I94981d9f780bd95df8b56198210c9cdd5f16239c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528366
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-08 17:26:24 +00:00
Ethan Nicholas
f125d4e7a0 Improved SkSL Block and Do position tracking
Blocks did not previously track their position, creating problems
reporting some errors (which will be improved in followup CLs). Fixing
block positions changed the reporting of do loop errors, requiring do
loop position tracking to be updated as part of this change.

Change-Id: I3bd048a62d912914edf679f42607de1b5eafc2b9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528045
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-07 21:03:19 +00:00
Ethan Nicholas
a98e077508 Fixed remaining SkSL positions
This addresses (hopefully) all of the remaining suboptimal positions in
SkSL error reporting.

Change-Id: I5bc977b03d51153b841a89fa687e54e3e9cb6ec3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/527976
Reviewed-by: Brian Osman <brianosman@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-06 17:03:22 +00:00
Ethan Nicholas
453e4def6f Improved BinaryExpression position tracking
This avoids a situation where we didn't know the position of a binary
expression while we were in the middle of evaluating it, which was
leading to problems with upcoming error reporting changes.

Change-Id: Ie41fa82d077de1aa1041cd84c539ba29aaa2f5f0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/527500
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-05 20:02:34 +00:00
Ethan Nicholas
59b0688e5e Improved PostfixExpression position tracking
This avoids a situation where we didn't know the position of a postfix
expression while we were in the middle of evaluating it, which was
leading to problems with upcoming error reporting changes.

Change-Id: Ie6d4dd8411ffb24ac7ee95d3e908483d0d92ba0f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/527499
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-05 20:02:26 +00:00
Ethan Nicholas
3d3a510071 Require a Position to be passed into various SkSL expressions
This removes some hacks where we were creating nodes with the wrong
positions and later updating them to have the correct positions, along
with a general increase in the rigorousness of position tracking.

Change-Id: I2bc635de6d5f516d5fb6763b00a22a10ccdf135f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/526678
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-04 13:52:06 +00:00
Ethan Nicholas
fd9c66e180 Enforce correct positions for SkSL expressions
This adds asserts to DSLParser::expression() to ensure that every
generated expression actually starts at the current offset, and fixes
all of the various spots we weren't successfully doing that.

Change-Id: Ie37dbf9ee8bb47fd03f7a290d2e15da4fbfff938
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525316
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-04-02 16:42:58 +00:00
Ethan Nicholas
3f5184cfa6 Added an SkSL Operator enum
SkSL::Operator was previously just a thin wrapper around Token::Kind and
everything was therefore written in terms of Token. Since Token is not
accessible from include/ (and we don't want it to be), this creates an
actual Operator enum and eliminates the dependence on Token. This will
enable followup changes to reference Operator from within the DSL
include files.

Change-Id: I49555c9151618fd15970a303d2284972c78c3f21
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525976
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-31 13:20:57 +00:00
Ethan Nicholas
0dd66fea56 Added full position tracking to Swizzle
No visible effect yet, but this will enable better error reporting in a
future CL.

Change-Id: I09e1c5d3bb423a7ce42701f15c4bb142b0a9473c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/524638
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-28 14:04:14 +00:00
Kevin Lubick
aab019a15e [bazel] Fix build
Most of these are pretty mechanical generated changes.

IWYU noticed one issue with DSLCore.h, which was fixed here.

Change-Id: I5629565ad3c2817daa71907c62f932d93f9d78ab
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/524617
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-03-28 13:56:16 +00:00
Ethan Nicholas
7183f29125 Added position tracking for SkSL Modifiers
This is needed for accurate error reporting when we start reporting
ranges rather than line numbers.

Change-Id: If465317e04685e91ab7c408d29e82028b5d59d1a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/523425
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-23 20:45:39 +00:00
Kevin Lubick
08ece0c9a0 [includes] Enforce IWYU on sksl code
PS1 regenerates the Bazel files. Use it as the base change when
    comparing patchsets.

IWYU seems to do a good job of working with MyFile.cpp and
MyFile.h, but if there is just a MyHeader.h, it doesn't always
seem to throw errors if the includes aren't correct. This was
observed with include/sksl/DSL.h This might be due to the fact
that headers are not compiled on their own, so they are never
sent directly to the IWYU binary.

This change sets enforce_iwyu_on_package() on the all sksl
packages and then fixes the includes until all those checks
are happy. There were a few files that needed fixes outside
of the sksl folder. Examples include:
 - src/gpu/effects/GrConvexPolyEffect.cpp
 - tests/SkSLDSLTest.cpp

To really enforce this, we need to add a CI/CQ job that runs
bazel build //example:hello_world_gl --config=clang \
  --sandbox_base=/dev/shm --features skia_enforce_iwyu

If that failed, a dev could make the changes described in
the logs and/or run the command locally to see those
prescribed fixes.

I had to add several entries to toolchain/IWYU_mapping.imp
in order to fix some private includes and other atypical
choices. I tried adding a rule there to allow inclusion of
SkTypes.h to make sure defines like SK_SUPPORT_GPU, but
could not get it to work for all cases, so I deferred to
using the IWYU pragma: keep (e.g. SkSLPipelineStageCodeGenerator.h)

Change-Id: I4c3e536d8e69ff7ff2d26fe61a525a6c2e80db06
Bug: skia:13052
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/522256
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Greg Daniel <egdaniel@google.com>
2022-03-21 12:43:02 +00:00
Ethan Nicholas
c444394841 Removed file field from SkSL::Position
Bug: skia:13051
Change-Id: I13cdb1b625f65e6d15d3b59ba493897ed88b24c4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/521005
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-17 16:47:05 +00:00
Ethan Nicholas
5e035c66da Added safety checks to SkSL error reporting
This adds an assert to Position::line() to ensure that we don't run
past the end of the source string. Since the source string can
contain embedded nulls, we also switch the source handling from
const char* to std::string so we can accurately determine its length.

Change-Id: I9df47e98c1a0cbc35222a0ea709d9403762210d3
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/521656
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-17 16:06:06 +00:00
Ethan Nicholas
c9e9131f44 Switched SkSL positions from int to Position
This CL switches almost all instances of line tracking over to track
Positions instead. This does not yet add full range support - only the
start offsets will be correct currently. Followup CLs will extend the
ranges to fully cover their nodes.

Change-Id: Ie49aee02f35dcb30a3adb8a35f3e4914ba6939d2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/518137
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-14 17:06:17 +00:00
Ethan Nicholas
9cd8456afe Renamed SkSL::PositionInfo to SkSL::Position
Change-Id: I1fa160941b18392616708f4e08a4ebbf7398480e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/518521
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
2022-03-09 17:37:38 +00:00
Kevin Lubick
e94b52c442 [canvaskit] Add skottie to Bazel build
PS 1 regenerates existing Bazel files
PS 2 adds generated Bazel files to skottie and its dependencies,
as well as incorporating it into CanvasKit.

This changes the version of Bazel we use to 5.0.0 (recently
released).We had been using a pre-release of 6.0 because we
wanted the new features in one of the 5.0 release candidates,
but not the regression that was there (and reverted before the
full 5.0 release). I'd like to stick to the latest stable Bazel
release where possible.

Suggested Review Order:
 - //modules/skottie/BUILD.bazel (this was hand written
   to encapsulate the skottie library). The files in the
   deps are based on skottie.gni.
 - //modules/skresources/BUILD.bazel and //modules/sksg/BUILD.bazel
   which expose all sources
 - //third_party/file_map_for_bazel.json which ignores the
   ffmpeg libraries (we won't actually build the SkVideoDecoder
   stuff because HAVE_VIDEO_DECODER is not set).
 - //modules/canvaskit/BUILD.bazel which makes use of the skottie
   library and includes the interface skottie.js file.
 - .bazelversion which changes the Bazel version used (e.g. by
   Bazelisk).
 - All other changes should be auto-generated or related to
   deleted files.

Change-Id: Ic26f9a9dea5310f2cbd9cda7d701847924a39a22
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/503828
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Jorge Betancourt <jmbetancourt@google.com>
2022-02-04 19:18:27 +00:00