Commit Graph

27 Commits

Author SHA1 Message Date
Dominik Röttsches
f27608b656 Reland (2): Add ToolUtils helper for generating GM UI sliders for variable fonts
numAxes check changed from != 0 to < 0, G3 build fix by updating bazel
files for skdiff to include SkMetaData, now with file name typo fixed.

Use this new tool in the COLRv1 GM test for creating sliders in the GM
UI if the test font provides variable axes. Preparation for testing
variable COLRv1 fonts while developing this feature in FreeType.

Bug: chromium:1311241
Cq-Include-Trybots: luci.skia.skia.primary:Canary-G3
Change-Id: I2a24fed2c46e1edc85ca45080db5b54a5c15b6bf
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/556936
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Commit-Queue: Dominik Röttsches <drott@google.com>
2022-07-08 15:30:26 +00:00
Robert Phillips
3b5c2c6ffd Revert "Reland: Add ToolUtils helper for generating GM UI sliders for variable fonts"
This reverts commit 663ec474bb.

Reason for revert: Breaking G3 roll

Original change's description:
> Reland: Add ToolUtils helper for generating GM UI sliders for variable fonts
>
> numAxes check changed from != 0 to < 0, G3 build fix by updating bazel
> files for skdiff to include SkMetaData.
>
> Use this new tool in the COLRv1 GM test for creating sliders in the GM
> UI if the test font provides variable axes. Preparation for testing
> variable COLRv1 fonts while developing this feature in FreeType.
>
> Bug: chromium:1311241
> Change-Id: I8c81fe211031d5fa144a5462eac333fee2bcc8aa
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/556837
> Auto-Submit: Dominik Röttsches <drott@chromium.org>
> Commit-Queue: Robert Phillips <robertphillips@google.com>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

Bug: chromium:1311241
Change-Id: I68013c7722c8e0cfe38ea316d7ad051815fa1e32
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/556916
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Robert Phillips <robertphillips@google.com>
2022-07-08 14:15:35 +00:00
Dominik Röttsches
663ec474bb Reland: Add ToolUtils helper for generating GM UI sliders for variable fonts
numAxes check changed from != 0 to < 0, G3 build fix by updating bazel
files for skdiff to include SkMetaData.

Use this new tool in the COLRv1 GM test for creating sliders in the GM
UI if the test font provides variable axes. Preparation for testing
variable COLRv1 fonts while developing this feature in FreeType.

Bug: chromium:1311241
Change-Id: I8c81fe211031d5fa144a5462eac333fee2bcc8aa
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/556837
Auto-Submit: Dominik Röttsches <drott@chromium.org>
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
2022-07-08 14:00:49 +00:00
Kevin Lubick
ee62fad9a4 [bazel] Add "skia_internal" target that exposes private API for tests/tools.
Organization v3.5, if we are keeping track :)

This splits the "srcs" filegroup into "srcs" and "private_hdrs",
and renames "hdrs" to "public_hdrs".

To assist with the split, I created the macro split_srcs_and_hdrs.
Rather than keep two separate lists of header and source files,
I figured it would be easiest, at least for the common case,
to keep one list of files and then have a for loop split them
apart. I've tried to be consistent with having the list
of files be named with a _FILES suffix - maybe we can use this
as a marker to generate .gni files in the future?

Suggested review order:
 - //bazel/macros.bzl. Note this needs a corresponding
   G3 change (http://cl/452279799) as well. The exports_files_legacy
   change is the better approach to something I manually
   handled yesterday when fixing the G3 roll.
 - //BUILD.bazel to see the new target skia_internal and
   the previous skia_core renamed to skia_public.
 - //src/core/BUILD.bazel to see a typical usage of
   split_srcs_and_hdrs.
 - //include/... to see the change to public_hdrs and
   private_hdrs
 - //src/... to see many more usages of split_srcs_and_hdrs
 - //tools/... to see changes to skia_internal where
   appropriate.
 - Everything else. Note that //modules/... might also need
   to be built with skia_internal instead of skia_public,
   but we can fix that up later, if necessary.

Change-Id: Ie1cc969455d97b029b2d77faa222c4a9bad70671
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/545716
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
2022-06-02 11:23:50 +00:00
Kevin Lubick
c123b5a93d [bazel] Add rules for CanvasKit and dependent modules
This may look like a lot, but //modules/canvaskit/BUILD.bazel
is nearly identical to how it was with gazelle:
162dfca340/modules/canvaskit/BUILD.bazel

I removed the "wasm_gm_tests" targets from it, because they
had bitrotted slightly and fixing them is its own task.

CanvasKit depends on Skottie and Particles, which depend on
the SkParagraph, SkShaper, SkUnicode, and SkResources modules.

I've structured the BUILD.bazel files in the //modules directory
in a similar fashion as the "hierarchical filegroup"
introduced in https://skia-review.googlesource.com/c/skia/+/543977

Suggested Review Order
 - //modules/skottie/...
 - //modules/skparagraph/...
 - all other modules.
 - Note that modules/canvaskit/go/gold_test_env/BUILD.bazel is
   generated from gazelle, because we like how gazelle handles
   golang files and deps.
 - All other files in any order.

Change-Id: I0aa9e6f81dba2c00f15cae7b19fe49a2027dcf1d
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/544676
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
2022-05-31 14:14:54 +00:00
Kevin Lubick
5810c7ad0b [bazel] Add new rules for various tools
This adds or fixes rules to build three binaries that previously
had Bazel support.

How we build skslc with Bazel differs from GN in a large way:
GN has a small set of C++ files [1] it compiles in, but with
Bazel that was too hard/clumsy to pipe through (and get the
headers to work well). So, I just had skslc depend on
//:skia_core for simplicity. skslc did need to include something
in //src, so I made a special filegroup for it. For more
complex executables that need more headers from //src, we
should probably make a "src_hdrs" filegroup or something
to expose those. That or a skia_for_tests cc_library that
has all headers as "public".

[1] https://github.com/google/skia/blob/main/gn/sksl.gni#L235
Change-Id: Ie1382e982228059369886f4bfef4947f686b11b5
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/544637
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-05-31 14:14:54 +00:00
Kevin Lubick
956704b387 [bazel] Get GPU examples working
This adds targets which test our Dawn, GL, and Vulkan backends.

It follows the hierarchical filegroup pattern, as
outlined in https://skia-review.googlesource.com/c/skia/+/543977

Suggested Review order:
 - tools/sk_app/BUILD.bazel. For many things in tools, I anticipate
   they will depend on //:skia_core and other //tools targets.
   sk_app shows this off, as well how to make the target
   specific to a given platform and pull in the proper native code.
   I'm trying out setting test_only = True, to see if we can
   partition Skia's tests and helpers from the actual Skia library.
 - other changes to //tools/, especially looking at sk_app's
   dependencies.
 - //example/BUILD.bazel. This uses the cc_binary_with_flags which
   existed previously [1] to make it so people don't have to
   specify all the flags for a given binary and can build it as is.
   These targets nows how up in //bazel/Makefile
 - //include/... and //src/..., where some typos from previous
   CLs were fixed and rules expanded.
 - Misc changes to .cpp files to remove unnecessary includes
   that were assuming the GL backend was being compiled in.
 - All other changes

[1] 162dfca340/bazel/cc_binary_with_flags.bzl
Change-Id: Ieacec464d44368cad0da0890c7dc85a6c0b900c9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/544317
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@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
Derek Sollenberger
d4aa36a9b6 Revert "create ParticleDrawable for animated Skotties"
This reverts commit ddd64d35c6.

Reason for revert: breaking the android build

Original change's description:
> create ParticleDrawable for animated Skotties
>
> Change-Id: Ieaea5e9c358604a25f0fecd7bac71a0450359653
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/538042
> Reviewed-by: Florin Malita <fmalita@google.com>
> Commit-Queue: Jorge Betancourt <jmbetancourt@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

Change-Id: Ida2bfe6359790a49a8c2b4f8a3b96d9b14da5600
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/539083
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Derek Sollenberger <djsollen@google.com>
2022-05-11 23:35:08 +00:00
Jorge Betancourt
ddd64d35c6 create ParticleDrawable for animated Skotties
Change-Id: Ieaea5e9c358604a25f0fecd7bac71a0450359653
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/538042
Reviewed-by: Florin Malita <fmalita@google.com>
Commit-Queue: Jorge Betancourt <jmbetancourt@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2022-05-11 17:44:53 +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
Robert Phillips
0fb10ab912 [graphite] Update GMs to have graphite-backed gpu SkImages (take 2)
This makes part of of our testing infrastructure (i.e., the GMs)
compatible with Graphite's more stringent requirements.

Bug: skia:12701
Change-Id: I5e42d93050eccc1e455f46e07b64654ad3d4548c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/531997
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2022-04-21 14:59:41 +00:00
Robert Phillips
163a7eaf10 Revert "[graphite] Update GMs to have graphite-backed gpu SkImages"
This reverts commit 932801c29e.

Reason for revert: unhappy bots

Original change's description:
> [graphite] Update GMs to have graphite-backed gpu SkImages
>
> This makes part of of our testing infrastructure (i.e., the GMs)
> compatible with Graphite's more stringent requirements.
>
> Bug: skia:12701
> Change-Id: I5d2bf44a1f044797971a1cf6874cf1819d715ca6
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/530539
> Reviewed-by: Jim Van Verth <jvanverth@google.com>
> Commit-Queue: Robert Phillips <robertphillips@google.com>

Bug: skia:12701
Change-Id: I1da473800efd2110c14883d63086a82af53effe2
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/531742
Auto-Submit: Robert Phillips <robertphillips@google.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
2022-04-19 20:56:14 +00:00
Robert Phillips
932801c29e [graphite] Update GMs to have graphite-backed gpu SkImages
This makes part of of our testing infrastructure (i.e., the GMs)
compatible with Graphite's more stringent requirements.

Bug: skia:12701
Change-Id: I5d2bf44a1f044797971a1cf6874cf1819d715ca6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/530539
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
2022-04-19 20:19:41 +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
458f4ded2b [bazel] Consolidate skylib loads
For importing into G3, this will simplify the regex needed
and allow us to stub out things not supported (e.g. gazelle)

Change-Id: I770f5dee6f29e555356742dae36212ad6cfb713a
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/529836
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-04-14 11:37:08 +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
Greg Daniel
719239cd69 Move all Ganesh source files into ganesh subdirectory.
Change-Id: I238d29ba0250224fa593845ae65192653f58faff
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/528156
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
Commit-Queue: Greg Daniel <egdaniel@google.com>
2022-04-07 21:06:50 +00:00
Kevin Lubick
5e8f45faf1 [includes] Prepare for moving SkColorSpace to forward declare
This updates all our callsites in preparation for removing
the #include "include/core/SkColorSpace.h" from SkImageInfo.h

According to go/chrome-includes [1], this will save ~150MB
(0.07%) from the compilation size. I think SkColorSpace is
a big include because it loads the skcms header, which is
big.

The follow-on CL will remove that link, once clients have
been updated as well.

[1] https://commondatastorage.googleapis.com/chromium-browser-clang/chrome_includes_2022-03-31_124042.html#view=edges&filter=%5Ethird_party%2Fskia%2Finclude%2Fcore%2FSkImageInfo%5C.h%24&sort=asize&reverse=&includer=%5Ethird_party%2Fskia%2Finclude%2Fcore%2FSkImageInfo%5C.h%24&included=&limit=1000

Change-Id: I1b5ff491ac495317b0e5af3a2082b080d43697ae
Bug: skia:13052
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525639
Reviewed-by: Robert Phillips <robertphillips@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Reviewed-by: Florin Malita <fmalita@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2022-03-31 19:50:10 +00:00
Kevin Lubick
556ca8f7ee [includes] Enforce IWYU for //tools/debugger/...
This moves the Build-Debian10-BazelClang-x86_64-Release-IWYU
job from experimental to on when a file in one of the
folders that we enforce IWYU is modified (currently
for svg, sksl, and now, debugger).

Change-Id: Ia6fe1e7b30fc486db3eb081b6a64bc4c250cbf0b
Bug: skia:13052
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525796
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2022-03-30 13:53:13 +00:00
Kevin Lubick
e253cc3e55 [bazel] Use toolchain features to opt files into being IWYU compliant.
PS1 regenerates the Bazel files.

It is recommended to review this CL with a diff from PS1.

Example output when a file does not pass the test:
    tools/sk_app/CommandSet.h should add these lines:
    #include "include/core/SkTypes.h"
    #include "include/private/SkTArray.h"
    #include "tools/skui/InputState.h"
    #include "tools/skui/Key.h"
    #include "tools/skui/ModifierKey.h"
    namespace sk_app { class Window; }

    tools/sk_app/CommandSet.h should remove these lines:
    - #include "tools/sk_app/Window.h"

    The full include-list for tools/sk_app/CommandSet.h:
    #include "include/core/SkString.h"
    #include "include/core/SkTypes.h"
    #include "include/private/SkTArray.h"
    #include "tools/skui/InputState.h"
    #include "tools/skui/Key.h"
    #include "tools/skui/ModifierKey.h"
    #include <functional>
    #include <vector>
    class SkCanvas;
    namespace sk_app { class Window; }
    ---

This makes use of Bazel's toolchain features
https://bazel.build/docs/cc-toolchain-config-reference#features
to allow us to configure compiler flags when compiling
individual files. This analysis is off by default, and can
be turned on with --features skia_enforce_iwyu. When enabled,
it will only be run for files that have opted in.
Example:
    bazelisk build //example:hello_world_gl --config=clang \
       --sandbox_base=/dev/shm --features skia_enforce_iwyu

There are two ways to opt files in:
 - Add enforce_iwyu = True to a generated_cc_atom rule
 - Add enforce_iwyu_on_package() to a BUILD.bazel file
   (which enforces IWYU for all rules in that file)

Note that Bazel does not propagate features to dependencies
or dependents, so trying to enable the feature on cc_library
or cc_executable targets will only impact any files listed in
srcs or hdrs, not deps. This may be counter-intuitive when
compared to things like defines.

IWYU supports a mapping file, which we supply to help properly
handle things system headers (//toolchain/IWYU_mapping.imp)

Suggested Review Order:
 - toolchain/build_toolchain.bzl to see how we get the IWYU
   binaries into the toolchain
 - toolchain/BUILD.bazel and toolchain/IWYU_mapping.imp
   to see how the mapping file is made available for
   all compile steps
 - toolchain/clang_toolchain_config.bzl, where we define the
   skia_enforce_iwyu feature to turn on any verification at
   all and skia_opt_file_into_iwyu to enable the check for
   specific files using a define.
 - toolchain/clang_trampoline.sh, which is the toolchain is
   configured to call instead of clang directly (see line 83
   of clang_toolchain_config.bzl). This bash script used to
   just forward all arguments directly onto clang. Now it
   inspects them and either calls clang directly (if
   it does not find the define in the arguments or we are
   linking [bazel sometimes links with clang instead of ld])
   or calls clang and then include-what-you-use. In all cases,
   the trampoline sends the arguments to clang and IWYU
   unchanged).
 - //tools/sk_app/... to see enforcement enabled (and fixed)
   for select files, as an example of that method.
 - //experimental/bazel_test/... to see enforcement enabled
   for all rules in a BUILD.bazel file.
 - all other files.

Change-Id: I60a2ea9d5dc9955b6a8f166bd449de9e2b81a233
Bug: skia:13052
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/519776
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2022-03-16 13:09:46 +00:00
Kevin Lubick
9cb74e9079 [bazel] Compile gms for wasm and WebGL
PS 1 is re-generating existing BUILD.bazel files
PS 2 is generating BUILD.bazel files for tests/gms
PS 3+ makes modifications to build all of the gms and tests.

It is recommended to view this CL with just a diff between
PS 2 and the end, due to the large amount of generated changes
in PS 1 and 2.

We make a filegroup for the gms and tests because they need
to be compiled as one large blob in order for the registries
to work. Maybe in the future we will break these up, but at least
for WASM/JS, the overhead of starting a browser for each new
test would likely grind things to a halt, so we just group them
all together for now. It's also the most similar to what we
currently do.

In gm/BUILD.bazel and tests/BUILD.bazel, we add a cc_library
that encapsulates all of the deps of the tests, so we can
easily include that the build. These were discovered via
trial and error, not anything automatic or systematic.

The is_skia_dev_build config_setting is very similar to the
GN equivalent from which it was based.

The list of gms and tests to skip (e.g. which are incompatible
with WASM) was determined by building the wasm bundle:

modules/canvaskit$ make bazel_gms_release
tools/run-wasm-gm-tests$ make run_local_debug
# Don't forget to click the button on the screen after the
# browser loads

This way of invoking the tests will be replace soon with
`bazel test <something>`. As such, I didn't bother fully
documenting the current way.

Suggested review order:
 - modules/canvaskit/BUILD.bazel taking note that we always
   use profiling-funcs to make the stacktraces human readable.
 - gm/BUILD.bazel and tests/BUILD.bazel to see the lists of
   gms/tests. Notice the tests are roughly partitioned because
   we don't support things like vulkan/PDF in the wasm build
   and we will want a way to not build certain tests for
   certain configurations
 - tools/* noting some of the cc_libraries added to make
   dependencies easier to add when needed.
 - All other files.

Change-Id: I43059cd93c28af1c4c12b93d6ebd9c46a12d381f
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/506256
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
2022-02-09 18:56:17 +00:00
Kevin Lubick
96e4053be7 Update Bazel files
- Use latest emscripten toolchain (3.1.0)
 - Autogenerate the atoms and manually fix some of the file lists.
 - Add a known_good_builds target to bazel/Makefile to help
   check the things we expect to work with Bazel.

Change-Id: Ia5f51e7b9eb5c108386820ad59180c8f862f5a70
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/491438
Reviewed-by: Ben Wagner <bungeman@google.com>
2022-01-06 18:10:57 +00:00
Kevin Lubick
6ba9f702ba [bazel] Try adding cc_binary rules that use generated rules
To make the atomic rules a bit easier to work with, in many
of the folders, this adds in cc_library rules to group
together the sources from that folder (and subfolders
where prudent). We only needs sources because those atoms
should have their headers as deps.

One issue that was pointed out is that there is currently
no way to restrict the inclusion of certain packages,
a la, `gn check`. For example, there is no mechanism from
stopping a dev from adding
#include "modules/canvaskit/WasmCommon.h"
to something in //src/core (except circular dependencies).
We can probably address that using Bazel's visibility
rules as needed:
https://docs.bazel.build/versions/main/visibility.html
https://docs.bazel.build/versions/main/be/functions.html#package_group

It is recommended to look at this CL patchset by patchset.
PS1: Update gazelle command to generate rules in more folders.
PS2: A few changes to make generation work better.
PS3: The result of running make generate in //bazel
PS4: Adding the rules to build sksllex, the simplest binary I
     could find in the Skia repo.
PS5: Adding the rules to build skdiff, a more complex binary.
     I tried a few approaches, but ended up gravitating back
     towards the layout where we have each folder/package
     group up the sources. I imagine at some point, we'll have
     skdiff depend on skia_core or something, which will
     have things like //src/core, //src/codecs, //src/pathops
     all bundled together.
PS7: Added in the groupings of sources, similar to what we had
     earlier. I liked these for readability. These helped fix
     up the //:skia_core build, and by extension, the CanvasKit
     build.

Change-Id: I3faa7c4e821c876b243617aacf0246efa524cbde
Bug: skia:12541
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/476219
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
2021-11-30 18:18:53 +00:00
Kevin Lubick
888d4efa77 [canvaskit] Add Freetype/Fonts to Bazel Build
This re-works src/ports/BUILD.bazel to work like our other
BUILD files, i.e. one rule "srcs" that brings in the necessary
private filegroups.

To work around an abort with LLVM [1], we have to go back to an
earlier version of emscripten (temporarily?).

Future work should look at using transitions [2] to allow various
executables (e.g. CanvasKit, DM) to set their own set of Bazel
flags, w/o the build invokers having to specify them.

These transitions might be able to handle more complex cases
that we currently use if statements in GN to deal with.

The Freetype build rule was created by taking the BUILD.gn
rule, adding in all the sources listed there and then playing
compile-whack-a-mole to add in all the headers and included
.c files.

Suggested Review Order:
 - third_party/BUILD.bazel to see freetype build rules
 - bazel/common_config_settings/ to see treatment of fontmgr
   like codecs (many possible) and fontmgr_factory (only one).
 - src/ports/BUILD.bazel
 - BUILD.bazel
 - modules/canvaskit/BUILD.bazel. Take note of the gen_rule that
   calls tools/embed_resources.py to produce the .cpp file
   containing the embedded font data.
 - Everything else.

[1] https://github.com/emscripten-core/emscripten/issues/15528
[2] https://github.com/bazelbuild/examples/tree/main/rules/starlark_configurations/cc_binary_selectable_copts
Bug: skia:12541
Change-Id: I08dab82a901d80507007b354ca20cbfad2c2388f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/471636
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
2021-11-17 13:06:35 +00:00
Kevin Lubick
1f8c31b101 [infra] Add initial Bazel rules and files
These rules can be used to build our GMs on WASM+WebGL and
libskia.a with just the CPU backend (and most other features
turned off).

This can be done with the following commands:
  - bazel build //modules/canvaskit:gm-bindings-wasm --gpu_backend=gl_backend --with_gl_standard=webgl_standard
  - bazel build :skia-core --config clang

This pivots slightly from http://review.skia.org/463517
by using config_settings [1] instead of platforms for
the optional features that we control. This pivot was
suggested in [2]

We have BUILD.bazel files in many of the subdirectories
that specify filegroups for the appropriate files. In
an effort to make //BUILD.bazel more readable, it is
the responsibility of these subfolders to deal with
conditionally including certain .h or .cpp files.
This is done using select statements and config_settings
or platform constraints as necessary.

For example, src/gpu/BUILD.bazel will different private
filegroups for each of the supported gpu backends [3]
and a more-visible filegroup called "srcs" that has
the right selection of the private files to be used
for compilation.

An effort has been made to avoid using glob() in our
BUILD.bazel files. These file lists were made by using
`ls -1` and some regex to add in quotes. We might want
to make a helper script to assist with that, if necessary.

To specify which options we have, the settings in
//bazel/common_config_settings/BUILD.bazel have been
redesigned. They make use of a macro `string_flag_with_values`
that removes the boilerplate. Patchset 36 shows what the
file looks like w/o the macro.

The top level BUILD.bazel file will still need to use
some logic to handle defines, because local_defines is
a list of strings, not a list of labels [4].

Suggested Review Order:
  - WORKSPACE.bazel to see the new dependencies on the
    emsdk toolchain and bazel_skylib
  - bazel/common_config_settings/* to see the few settings
    defined (we have more to define, see BUILD.gn and
    //gn/skia.gni for ideas)
  - BUILD.bazel to see the "skia-core" cc_library rule.
    See also "gms" and "tests"
  - modules/canvaskit/BUILD.bazel to see the use of
    the emscripten "wasm_cc_binary" rule, which depends
    on the "skia-core", "gms", and "tests" rule. Note that
    it only builds some of the gms as a proof of concept.
  - The other BUILD.bazel files. Some of these are not
    platform or feature dependent (e.g. pathops). Others
    are (e.g. gpu).
  - All other files.

[1] https://docs.bazel.build/versions/4.2.1/skylark/config.html#user-defined-build-settings
[2] https://github.com/emscripten-core/emsdk/pull/920
[3] In this CL, that's just the webgl one.
[4] https://docs.bazel.build/versions/main/be/c-cpp.html#cc_library.local_defines

Change-Id: Ieecf9c106d5e3a6ae97d13d66be06b4b3c207089
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/458637
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Leandro Lovisolo <lovisolo@google.com>
Owners-Override: Kevin Lubick <kjlubick@google.com>
2021-11-09 12:32:25 +00:00