Add skia.conf (configuration file that supports printShaders, etc...) to .gitignore

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1734563003

Review URL: https://codereview.chromium.org/1734563003

Add 4f linear gradient benches

Plus some more regular tiling mode variations and random cleanups.

R=reed@google.com,mtklein@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1728283003

Review URL: https://codereview.chromium.org/1728283003

SkPDF/Bench: add bench for SkPDFSharedStream (deflate)

Also, simplify gyp.

BUG=skia:5009
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1730833003

Review URL: https://codereview.chromium.org/1730833003

Add wrapBackendTextureAsRenderTarget API

Skia's GrTextureProvider currently exposes two APIs for wrapping backend
objects:
 * wrapBackendTexture - wraps a texture into a GrTexture. Depending on
   flags, this GrTexture can be converted to a GrRenderTarget. Skia
   manages the render target objects it may create to provide a render
   target for the texture. This allows Skia to create stencil buffers
   if needed and manager MSAA resolves.
 * wrapBackendRenderTarget - wraps a FBO into a GrRenderTarget. This
   object cannot be converted to a GrTexture. Skia does not manage
   the render target objects for such a GrRenderTarget, and as such
   cannot attach stencil buffers or perform MSAA resolves on the
   created GrRenderTarget.

Given these two options, wrapBackendTexture provides more versatility
and allows Skia more room for optimization. Chrome currently uses
wrapBackendTexture for this reason.

While these two functions cover most cases, they do not provide a way
for Skia to wrap a texture into a render target (and gain the MSAA and
stencil buffer management), without also creating a GrTexture. This is
problematic in cases where a texture can be bound to a render target,
but cannot be textured from, as is the case in Chrome's limited support
for GL_TEXTURE_RECTANGLE.

To address this, a new function is created:
 * wrapBackendTextureAsRenderTarget - wraps a texture into a
   GrRenderTarget. As with wrapBackendTexture, the created render
   target objects are fully managed by Skia. Unlike wrapBackendTexture
   no GrTexture is created, and the created object will never be
   textured from.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1709163003

Review URL: https://codereview.chromium.org/1709163003

Hide GrDrawTarget from GrOvalRenderer

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1731413002

Review URL: https://codereview.chromium.org/1731413002

Rethink DM output

Instead of printing out each task as it finishes, or as it starts and as it finishes, periodically print out what we're up to.

Example output:
https://build.chromium.org/p/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Shared-Trybot/builds/6436/steps/dm/logs/stdio

BUG=skia:4978
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1730943003

Review URL: https://codereview.chromium.org/1730943003

Added a flag that forces SampleApp to continuously redraw, even in non-animated tests. Helpful when profiling or debugging.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1731853003

Review URL: https://codereview.chromium.org/1731853003

Round to nearest in ScalarTo256.

This is a followup to https://codereview.chromium.org/1693683002 per discussion on https://codereview.chromium.org/1691403002.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1723483004

Review URL: https://codereview.chromium.org/1723483004

Documentation: sync-and-gyp design document

NOTRY=true
DOCS_PREVIEW= https://skia.org/dev/design/sync-and-gyp?cl=1736483002

Review URL: https://codereview.chromium.org/1736483002

Change SkUnitScalarClampToByte to more accurate implementation.

The previous implementation was likely more efficient when SkScalar was SkFixed.

BUG=skia:4632
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1691403002

Review URL: https://codereview.chromium.org/1691403002

remove debugging printf

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1725173003

NOTRY=True
TBR=

Review URL: https://codereview.chromium.org/1725173003

SkPDF/Bench: add bench for SkPDFCreateBitmapObject

BUG=skia:5009

Review URL: https://codereview.chromium.org/1729943003

fixup GLPrograms textblob todo

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1730253002

Review URL: https://codereview.chromium.org/1730253002

fix path ops fuzz bug

If one path is empty and the other has extreme values, the
intermediate coincident paths cannot be resolved, but triggers
an assert that a data structure unexpectedly has zero-length.

Tunnel this failure back up to the top and return that the
entire path op fails.

A future optimization could detect the empty path and avoid
this, allowing the op to succeed -- not sure that it's worth
the additional logic though.

TBR=reed@google.com
BUG=535151
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1730293002

Review URL: https://codereview.chromium.org/1730293002

Turn off DM --pre_log on the bots.  Too spammy.

BUG=skia:4978
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1734703002

Review URL: https://codereview.chromium.org/1734703002

Use ARM fixes for SDF encoding.

This pulls out the encoding fixes by Joel Liang from
https://codereview.chromium.org/1643143002/
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1726763002

Review URL: https://codereview.chromium.org/1726763002

Revert of Simple cleanups related to SkFixed. (patchset #4 id:120001 of https://codereview.chromium.org/1683743005/ )

Reason for revert:
New test is failing on Windows.

Original issue's description:
> Cleanups related to SkFixed.
>
> Remove SK_FixedNaN. It does not seem to be supported or used anywhere in Skia, Chromium, Android, or Google3, (except accidentally by TwoPtRadial::kDontDrawT). I think supporting it would erase any benefit of SkFixed over float.
>
> Remove SkBitmapFilter::lookup. It does not appear to be used anywhere in Skia, Chromium, Android, or Google3.
>
> Fix a bug in SkPaint::breakText that limited it to ~5kB of text. Now it can handle more than 1GB.
>
> BUG=skia:4632
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1683743005
>
> Committed: https://skia.googlesource.com/skia/+/7ea5cb18389db11a94175de95c9db2b44972630c

TBR=mtklein@google.com,reed@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4632

Review URL: https://codereview.chromium.org/1724283003

Revert of Include glGetMultisamplefv API (patchset #1 id:1 of https://codereview.chromium.org/1720963002/ )

Reason for revert:
This is in the blamelist for Visualbench failures:

https://build.chromium.org/p/client.skia/builders/Perf-Ubuntu-GCC-ShuttleA-GPU-GTX660-x86_64-Release-VisualBench/builds/1035

and seems the most likely candidate for the failure, so I am tentatively reverting.

Original issue's description:
> Include glGetMultisamplefv API
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720963002
>
> Committed: https://skia.googlesource.com/skia/+/69c1b24bcaa7cffd59753a75a7f3d155696fcac4

TBR=bsalomon@google.com,joshualitt@google.com,cdalton@nvidia.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1731333002

extend xfermodes gm to include 3 custom modes

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1736523002

Review URL: https://codereview.chromium.org/1736523002

Ensure the Gaussian tail of circle blurs goes to zero.

Compare blurcircle GM masked so that values <255 are white and =255 are black:
https://x20web.corp.google.com/~benjaminwagner/review/1723383002/blurcircles-lt255-before.png
https://x20web.corp.google.com/~benjaminwagner/review/1723383002/blurcircles-lt255-after.png

This is a spinoff of https://codereview.chromium.org/1691403002, which was previously causing more "rectangles" in this GM.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1723383002

Review URL: https://codereview.chromium.org/1723383002

Cleanups related to SkFixed.

Remove SK_FixedNaN. It does not seem to be supported or used anywhere in Skia, Chromium, Android, or Google3, (except accidentally by TwoPtRadial::kDontDrawT). I think supporting it would erase any benefit of SkFixed over float.

Remove SkBitmapFilter::lookup. It does not appear to be used anywhere in Skia, Chromium, Android, or Google3.

Fix a bug in SkPaint::breakText that limited it to ~5kB of text. Now it can handle more than 1GB.

BUG=skia:4632
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1683743005

Review URL: https://codereview.chromium.org/1683743005

simplify/unify xferproc api

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1721223002

Review URL: https://codereview.chromium.org/1721223002

Create new GM to target translations problems in GrAtlasTextContext

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1721833005

Review URL: https://codereview.chromium.org/1721833005

Retire SkShader::kSupports4f_Flag

No longer used except in one test.

Introduce kPrefers4f_Flag instead.

R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1726983002

Review URL: https://codereview.chromium.org/1726983002

Skia schedule on skia.org

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1726253002
NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=1726253002
TBR=reed@google.com

Review URL: https://codereview.chromium.org/1726253002

Include glGetMultisamplefv API

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720963002

Review URL: https://codereview.chromium.org/1720963002

Update 4f linear gradient selection heuristic

Use the 4f context when

  * dest type is 4f
  * there's no perpective

Keeping the define and testing flag overrides for now.

R=reed@google.com,herb@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1725793003

Review URL: https://codereview.chromium.org/1725793003

Move SkPackBits to src/effects.

Prior to this change SkPackBits.h was in include/core and SkPackBits.cpp
in src/core. However, SkPackBits appears to have been written
specifically as an implementation detail of the SkTableColorFilter
effect. This change moves SkPackBits out of core and into effects, which
is the only current user.

Review URL: https://codereview.chromium.org/1722173003

Simplify and combine SkDrawCacheProc and SkMeasureCacheProc to SkPaint::GlyphCacheProc.

All callers of (the result of) SkPaint::getDrawCacheProc were passing zero as the last two arguments. This is the same as (the result of) SkPaint::getMeasureCacheProc(true).

Per bungeman, make this typedef a member of SkPaint.

Although the typedef is technically public, the only uses are private, so this is not really an API change.

TBR=reed
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718423002

Review URL: https://codereview.chromium.org/1718423002

Add a handler to DM to print out what was running when we crash.

This is an experiment to see if we can use something like this
rather than today's extremely verbose logging.

Now, hopefully something crashes.

BUG=skia:4978
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1725543002

Review URL: https://codereview.chromium.org/1725543002

make transformed rrect radii fit rectangle

one more case caught by 1M skps
R=herb@google.com,reed@google.com
BUG=skia:4413
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1722483003

Review URL: https://codereview.chromium.org/1722483003

Remove unnecessary GOOGLE3 ifdefs from SkRawCodec

These should be fine now that SkJpegCodec is building in GOOGLE3.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718343002

Review URL: https://codereview.chromium.org/1718343002

Update SK_IMAGE_VERSION to 3

This includes two new test wbmps (that came from clients of BitmapFactory).

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1722263002

Review URL: https://codereview.chromium.org/1722263002

Move SkUtils.h to src/core.

Review URL: https://codereview.chromium.org/1722703003

added 'visible' attribute to skiaserve JSON
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1726663002

Review URL: https://codereview.chromium.org/1726663002

Use new API instead of the deprecated ones.

This change will allow us to remove the old API in follow up clean up.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1728553002

Review URL: https://codereview.chromium.org/1728553002

Update PIEX: Prepares support for uncompressed thumbnails

The new version of PIEX added new API for adding support to thumbnails. It also marks some old API as deprecate.

BUG=b/26894354
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1723123002

Review URL: https://codereview.chromium.org/1723123002

Turn on TURBO_HAS_CROP for Android framework

https://buganizer.corp.google.com/u/0/issues/27290496
BUG=skia:4256
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1721953002

Review URL: https://codereview.chromium.org/1721953002

Make DM failures fatal

We should now only be pushing Srcs for tests that we expect
to succeed.  So any failures should be treated as errors.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719293002

Review URL: https://codereview.chromium.org/1719293002

Add dest type hint to SkShader::ContextRec

Let SkBlitter decide which dst type is optimal (PMColor vs PM4f), and
pass that info to shaders.

R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1724503002

Review URL: https://codereview.chromium.org/1724503002

remove unnecessary copies

these used to matter with pass-by-ref

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1721153002

Review URL: https://codereview.chromium.org/1721153002

Run no CPU benches in Debug trybots.

They seem to just be wasting time on the CQ.

Hacking this into nanobench_flags.py makes it easy to back out.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720223002

Review URL: https://codereview.chromium.org/1720223002

Better encapsulation and vector calling convention.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1723683002

Review URL: https://codereview.chromium.org/1723683002

Fix DM_INCLUDES after https://codereview.chromium.org/1688543002

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719253002

Review URL: https://codereview.chromium.org/1719253002

Only use fake gamma with linear devices.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1711223003

Review URL: https://codereview.chromium.org/1711223003

Add spans for matrix ops.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1722703002

Review URL: https://codereview.chromium.org/1722703002

fix unsigned/signed warning on linux for GrVkDescriptorPool::numPoolSizes()

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1724493002

Review URL: https://codereview.chromium.org/1724493002

Fix unsigned short UVs for Vulkan.

Modifies the attribute type to match GL.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1723633003

Review URL: https://codereview.chromium.org/1723633003

Fix gyp-and-sync for windows
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715423003

Review URL: https://codereview.chromium.org/1715423003

fix misc asserts and checks found by fuzzer

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719993002

Review URL: https://codereview.chromium.org/1719993002

allow move/zero-line/close to draw caps

R=fmalita@chromium.org
BUG=skia:4784
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720953002

Review URL: https://codereview.chromium.org/1720953002

kill gm now that we can test srgb on all gms

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719963004

TBR=

Review URL: https://codereview.chromium.org/1719963004

Use new jpeg_crop_scanlines() API to optimize jpeg subset decodes

This was adapted from:
https://codereview.chromium.org/1530933003

Subset Decode Runtime (Original / Optimized) on Nexus 6P
TopLeft     0.51x
TopRight    0.56x
Middle      0.71x
BottomLeft  0.79x
BottomRight 0.79x

BUG=skia:4256
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719073002

Review URL: https://codereview.chromium.org/1719073002

Incorporate Vulkan files into main gpu.gyp/gpu.gypi

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718273002

Review URL: https://codereview.chromium.org/1718273002

Use unorm shorts for texture coordinates when rendering text.

There are a couple of reasons for this:
- Vulkan does not guarantee conversions from integral vertex attributes
  to floating point shader variables
- This may be faster and more precise on some platforms, as it avoids
  the aforementioned conversion and changes a multiply by a very small
  value to a multiply by a medium-sized value.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713693002
TBR=bsalomon@google.com

Committed: https://skia.googlesource.com/skia/+/e507ff0460f4f878214b9454fb5b9ab8d64d8063

Review URL: https://codereview.chromium.org/1713693002

Simplify calculations in AADistanceFieldPathBatch::writePathVertices.

No API changes.

BUG=skia:4632
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715063002
TBR=reed

Review URL: https://codereview.chromium.org/1715063002

Allow client to force an SkImage snapshot to be unique (and uniquely own its backing store).
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686163002

Review URL: https://codereview.chromium.org/1686163002

Add ContextRec param to SkShader::contextSize()

To facilitate upcoming context selection changes.

R=reed@google.com,mtklein@google.com,herb@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720933002

Review URL: https://codereview.chromium.org/1720933002

remove dead unpremul checks

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715333004

Review URL: https://codereview.chromium.org/1715333004

Fix to bazel build file to exclude vulkan files

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1723593002

Review URL: https://codereview.chromium.org/1723593002

skia.org internal links: Add link to Google3 Autoroller doc.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720943003
NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=1720943003

Review URL: https://codereview.chromium.org/1720943003

Initial linear gradient 4f impl

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1688543002

Review URL: https://codereview.chromium.org/1688543002

added mode=cpu|gpu to skiaserve JSON
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719973002

Review URL: https://codereview.chromium.org/1719973002

Fix nanobench SKP flushes between loops

Updates SKPBench to actually flush between draw loops, as this was the
original intent of the flush logic.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715873002

Review URL: https://codereview.chromium.org/1715873002

Add gl_SampleMask functionality to fragment builders

Adds methods for overriding and masking a fragment's sample mask.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1690963003

Committed: https://skia.googlesource.com/skia/+/533cefe5b9c7cec2592fc7ca00ee4cf69a26c094

Review URL: https://codereview.chromium.org/1690963003

Revert of fix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1719913002/ )

Reason for revert:
Looks to be causing failures in LayerTreeHostFilters* tests (https://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_rel_ng/builds/177297/steps/cc_unittests%20%28with%20patch%29/logs/stdio).

Original issue's description:
> fix misc asserts and checks found by fuzzer
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713383002
>
> TBR=
>
> Committed: https://skia.googlesource.com/skia/+/653db51b440491b0fb1908bf5a43dcc89c90044d

TBR=reed@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1721743002

Remove vulkan files from cmake build

TBR=bsalomon@google.com
NOTRY=True

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1717313002

Review URL: https://codereview.chromium.org/1717313002

clean-up dead code

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1719773002

Review URL: https://codereview.chromium.org/1719773002

Add vulkan files into skia repo. This is an incomplete backend with only partial functionality at this time.

R=robertphillips@google.com
TBR=bsalomon@google.com

BUG=skia:4955
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718693002

Committed: https://skia.googlesource.com/skia/+/48cf268defad66f58f1aa03b4835e5583be96b2f

Review URL: https://codereview.chromium.org/1718693002

lots of sRGB and F16 blits

- generalize F16 xfermode procs
- spriteblits for F16 and sRGB
- saveLayer now respects colortype and profiletype

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686013002

Review URL: https://codereview.chromium.org/1685203002

fix misc asserts and checks found by fuzzer

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713383002

TBR=

Review URL: https://codereview.chromium.org/1719913002

add SkGraphics::PurageAllCaches

BUG=skia:4755
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1722603002

TBR=

Review URL: https://codereview.chromium.org/1722603002

Revert of Add vulkan files into skia repo. (patchset #2 id:20001 of https://codereview.chromium.org/1718693002/ )

Reason for revert:
breaking builds

Original issue's description:
> Add vulkan files into skia repo. This is an incomplete backend with only partial functionality at this time.
>
> R=robertphillips@google.com
> TBR=bsalomon@google.com
>
> BUG=skia:4955
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718693002
>
> Committed: https://skia.googlesource.com/skia/+/48cf268defad66f58f1aa03b4835e5583be96b2f

TBR=robertphillips@google.com,bsalomon@google.com,jvanverth@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4955

Review URL: https://codereview.chromium.org/1723503002

Add vulkan files into skia repo. This is an incomplete backend with only partial functionality at this time.

R=robertphillips@google.com
TBR=bsalomon@google.com

BUG=skia:4955
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718693002

Review URL: https://codereview.chromium.org/1718693002

Revert of ix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1723473002/ )

Reason for revert:
need to not land the canvas change yet

Original issue's description:
> Reland of ix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1713413002/ )
>
> Reason for revert:
> deps instability seemingly fixed. trying again.
>
> Original issue's description:
> > Revert of fix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1713383002/ )
> >
> > Reason for revert:
> > speculative deps-roll fix
> >
> > Original issue's description:
> > > fix misc asserts and checks found by fuzzer
> > >
> > > BUG=skia:
> > > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713383002
> > >
> > > TBR=robertphilips
> > >
> > > Committed: https://skia.googlesource.com/skia/+/00bea4ad310c4ec4dd95809b47ce3fbfa8fd0e1e
> >
> > TBR=robertphillips@google.com
> > # Skipping CQ checks because original CL landed less than 1 days ago.
> > NOPRESUBMIT=true
> > NOTREECHECKS=true
> > NOTRY=true
> > BUG=skia:
> >
> > Committed: https://skia.googlesource.com/skia/+/d98ef6377269e3596423225ab922301ed40529a0
>
> TBR=robertphillips@google.com
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/75a73297cb44c65a9efcf5f212854cb457140e34

TBR=robertphillips@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1723483002

Reland of ix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1713413002/ )

Reason for revert:
deps instability seemingly fixed. trying again.

Original issue's description:
> Revert of fix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1713383002/ )
>
> Reason for revert:
> speculative deps-roll fix
>
> Original issue's description:
> > fix misc asserts and checks found by fuzzer
> >
> > BUG=skia:
> > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713383002
> >
> > TBR=robertphilips
> >
> > Committed: https://skia.googlesource.com/skia/+/00bea4ad310c4ec4dd95809b47ce3fbfa8fd0e1e
>
> TBR=robertphillips@google.com
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/d98ef6377269e3596423225ab922301ed40529a0

TBR=robertphillips@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1723473002

fix race: this kCacheSize is probably not meant to be static

TSAN sees us racing to intialize the static const kCacheSize.

This static const value depends on the runtime value image->getSize(), so there
is a race to set it.  I think this is unintentionally copy-paste from the other
tests that use a constant kCacheSize.  It's weird to intialize a constant based
on the first call to test_internal_purge(), though luckily we're always calling
it with same sized images today.

See these TSAN failures:
    https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN/builds/4937
    https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-TSAN/builds/4940/steps/dm/logs/stdio

TBR=robertphillips@google.com

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720743002

Review URL: https://codereview.chromium.org/1720743002

SkNx: kth<...>() -> [...]

Just some syntax cleanup.  No real change: kth<...>() was calling [...] already.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1714363002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1714363002

Revert of fix misc asserts and checks found by fuzzer (patchset #1 id:1 of https://codereview.chromium.org/1713383002/ )

Reason for revert:
speculative deps-roll fix

Original issue's description:
> fix misc asserts and checks found by fuzzer
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713383002
>
> TBR=robertphilips
>
> Committed: https://skia.googlesource.com/skia/+/00bea4ad310c4ec4dd95809b47ce3fbfa8fd0e1e

TBR=robertphillips@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1713413002

Update SKP version

Automatic commit by the RecreateSKPs bot.

TBR=
NO_MERGE_BUILDS
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715213002

Review URL: https://codereview.chromium.org/1715213002

revert fuzzer fixes for canvas, need to investigate more

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1717943002

TBR=

Review URL: https://codereview.chromium.org/1717943002

fix misc asserts and checks found by fuzzer

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713383002

TBR=robertphilips

Review URL: https://codereview.chromium.org/1713383002

Fix asserts found in SampleApp and update the tests with additional interesting numbers.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1717743004

Review URL: https://codereview.chromium.org/1717743004

Change type of SkScalerContext_FreeType::fScaleX/Y. All uses want FT_F26Dot6.

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1711053004

Review URL: https://codereview.chromium.org/1711053004

Add point spans, but fall back for all cases.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1711963003

curr/maxrss     loops   min     median  mean    max     stddev  samples                 config  bench
  10/10  MB     1       481µs   504µs   512µs   580µs   6%      ▁▁▄▆▂▃▁▁▁▁▁▁▃▇█▅▃█▃▅    nonrendering    SkBitmapFPAffineXClampYClampFilterOrig
  10/10  MB     1       2.21ms  2.31ms  2.31ms  2.53ms  4%      ▁▁▆▃▃▃▄▅▂▁▄▁█▅▁▁▄▂▆▁    nonrendering    SkBitmapFPAffineXClampYClampFilterLinr
  10/10  MB     1       2.49ms  2.63ms  2.61ms  2.78ms  4%      ▄▃▇▄▅▇▆▁▆▁▁▁▅▂▁▄▃█▆▃    nonrendering    SkBitmapFPAffineXClampYClampFiltersRGB
  10/10  MB     2       150µs   151µs   153µs   162µs   2%      ▅▇▂▂▁▁▂▂▁▁▂▂▁▁▁▁▇█▂▁    nonrendering    SkBitmapFPAffineXClampYClampNearestOrig
  10/10  MB     1       552µs   553µs   562µs   658µs   4%      ▁▁▁▁▁▁▁▁▁▄▃▁▁▁▁▁▁▁▁█    nonrendering    SkBitmapFPAffineXClampYClampNearestLinr
  10/10  MB     1       718µs   742µs   748µs   808µs   4%      ▃▃▁▁▅▁▁▁▁▃▃▃▃▇▇▇▁▁▇█    nonrendering    SkBitmapFPAffineXClampYClampNearestsRGB
  10/10  MB     1       277µs   286µs   292µs   341µs   7%      █▁▁▁▁▁▁▁▁▁▃▂▃▃▆█▄▂▂▂    nonrendering    SkBitmapFPScaleXClampYClampFilterOrig
  10/10  MB     1       2.21ms  2.41ms  2.39ms  2.55ms  4%      ▄▆▃▅▇▂▁▁▇▅▆▅▅▆▄▅█▅▆▅    nonrendering    SkBitmapFPScaleXClampYClampFilterLinr
  10/10  MB     1       2.55ms  2.68ms  2.69ms  2.94ms  4%      ▂▃▁▁▄▄▅▅▄▃█▄▃▇▂▁▃▃▂▂    nonrendering    SkBitmapFPScaleXClampYClampFiltersRGB
  10/10  MB     4       59.9µs  60.6µs  61.6µs  71.1µs  5%      ▂▃▄▁▁▁▁█▇▁▂▁▁▁▁▁▁▁▁▁    nonrendering    SkBitmapFPScaleXClampYClampNearestOrig
  10/10  MB     1       534µs   560µs   559µs   613µs   5%      ▇▂▁▅▅▅█▅▅▃▁▁▁▁▂▄▅▁▁▁    nonrendering    SkBitmapFPScaleXClampYClampNearestLinr
  10/10  MB     1       639µs   658µs   666µs   731µs   5%      ▅█▃▂▃▇▆▁▁▁▁▁▂▁▁▁▁▄█▄    nonrendering    SkBitmapFPScaleXClampYClampNearestsRGB
  10/10  MB     4       61.6µs  65.7µs  65.5µs  70.4µs  5%      ▃▃▃█▆▆▂▂▂▅▄▄▇▄▁▂▁▄██    nonrendering    SkBitmapFPIdentityXClampYClampFilterOrig
  10/10  MB     1       2.22ms  2.34ms  2.35ms  2.57ms  3%      ▂█▅▄▃▃▃▄▂▄▄▄▂▄▁▆▃▁▄▃    nonrendering    SkBitmapFPIdentityXClampYClampFilterLinr
  10/10  MB     1       2.42ms  2.52ms  2.52ms  2.76ms  4%      ▁▁▄▂▄▄▃▅█▄▅▁▃▁▁▃▁▄▃▃    nonrendering    SkBitmapFPIdentityXClampYClampFiltersRGB
  10/10  MB     4       59.7µs  64.7µs  64.8µs  73.3µs  7%      ▂▂▄▁▂▁▁▂▁▁▆▄▆▆▇▄▆▇▂█    nonrendering    SkBitmapFPIdentityXClampYClampNearestOrig
  10/10  MB     1       376µs   388µs   387µs   429µs   4%      ▃▃▆▁▄▄▁▃█▁▁▁▁▁▃▃▄▁▁▁    nonrendering    SkBitmapFPIdentityXClampYClampNearestLinr
  10/10  MB     1       496µs   511µs   518µs   568µs   5%      ▂▆▆█▆▃▂▂█▇▃▁▁▁▁▁▁▁▁▁    nonrendering    SkBitmapFPIdentityXClampYClampNearestsRGB

Review URL: https://codereview.chromium.org/1711963003

DM: remove unnecessary use of std::function

This draw_to_canvas() function doesn't need the power of std::function.

This skips a copy or two, which is nice, and seems to clear
up most of my MSAN problems.  Why?  I do not know.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1718633002

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

Review URL: https://codereview.chromium.org/1718633002

Changes to merge vulkan code

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1711793004

Review URL: https://codereview.chromium.org/1711793004

Calculate translations to apply to vertices in batch

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1716443005

Review URL: https://codereview.chromium.org/1716443005

check pm swizzle when extracting lcd coverage

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1706283005

Review URL: https://codereview.chromium.org/1706283005

remove supports4f flag for colorfilters

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1720443002

Review URL: https://codereview.chromium.org/1720443002

Insert an empty image when we cannot decode

In SKP deserialization, if there is a 0 byte encoded image, we insert
an empty image into the output SkPicture so that we can continue
deserializing. Do the same when our decoder cannot decode it. This may
be the result of a bug in our decoder, or in the stream serialization.
But it should not mean the entire stream is invalid.

BUG=skia:4691
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715853002

Review URL: https://codereview.chromium.org/1715853002

gyp_skia: use path python, be quiet

/usr/bin/python might not be python 2.x

I'm getting annoyed by scripts printing messages when there's no problem.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1716493003

Review URL: https://codereview.chromium.org/1716493003

Update libpng to 1.6.22beta

Intel SSE filter optimizations have been upstreamed.  Let's test on
the upstream version (which we can use in Android).

BUG=skia:4573
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1710083007

Review URL: https://codereview.chromium.org/1710083007

Add GPU-backed SkImage case to ImageFilterCache unit test

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713073002

Review URL: https://codereview.chromium.org/1713073002

NEON f32 <-> f16 and f32 <-> u16

Adds f32 <-> f16 ARMv7 and ARMv8 NEON code.
Also adds NEON f32 <-> u16 code to make the comparison fair.

The NDK GCC does not support the ARMv8 NEON intrinsics needed to go fastest, so we use a tiny amount of inline assembly.

The ARMv7 half -> float is different enough from the SSE version that it does not make sense to use SkNx.

Still TODO:
ARMv7 float -> half.  Naively translating the SSE version results in 0x0000 where we'd expect a denormal output.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1700473003
CQ_EXTRA_TRYBOTS=client.skia.android:Test-Android-GCC-Nexus5-CPU-NEON-Arm7-Release-Trybot,Test-Android-GCC-Nexus9-CPU-Denver-Arm64-Release-Trybot;client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1700473003

add back some basic configs to MSAN bot

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1706373004

Review URL: https://codereview.chromium.org/1706373004

Revert of Use unorm shorts for texture coordinates when rendering text. (patchset #3 id:40001 of https://codereview.chromium.org/1713693002/ )

Reason for revert:
Causing issues with text on Mali 400s. Examples:  largeglyphblur, imageblurtiled. It appears that there are precision problems.

Original issue's description:
> Use unorm shorts for texture coordinates when rendering text.
>
> There are a couple of reasons for this:
> - Vulkan does not guarantee conversions from integral vertex attributes
>   to floating point shader variables
> - This may be faster and more precise on some platforms, as it avoids
>   the aforementioned conversion and changes a multiply by a very small
>   value to a multiply by a medium-sized value.
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713693002
> TBR=bsalomon@google.com
>
> Committed: https://skia.googlesource.com/skia/+/e507ff0460f4f878214b9454fb5b9ab8d64d8063

TBR=joshualitt@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1709133003

added /enableGPU command to skiaserve
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1715503004

Review URL: https://codereview.chromium.org/1715503004

Update SkImageFilter's cache to handle SkSpecialImages and add unit test

This is calved off of: https://codereview.chromium.org/1695823002/ (Get OffsetImageFilter really working with SkSpecialImages)

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1709263002
TBR=bsalomon@google.com

Review URL: https://codereview.chromium.org/1709263002

fix iter to document close correctly

R=reed@google.com
BUG=skia:4950
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1717623002

Review URL: https://codereview.chromium.org/1717623002