Remove SkSurface::MakeRenderTargetDirect

split into:
https://codereview.chromium.org/2182543003/ (Move prepareForExternalIO from GrRenderTarget to GrDrawContext)
https://codereview.chromium.org/2187573002/ (Reduce usage of MakeRenderTargetDirect)
https://codereview.chromium.org/2186073002/ (Rename GrContext's newDrawContext & drawContext to makeDrawContext)
https://codereview.chromium.org/2178353005/ (Remove use of MakeRenderTargetDirect from view system)
https://codereview.chromium.org/2198433003/ (Remove some ancillary users of SkSurface::MakeRenderTargetDirect)
https://codereview.chromium.org/2208483004/ (Remove GrRenderTarget member variable from SkGpuDevice)
https://codereview.chromium.org/2211473002/ (Move GrContext::makeDrawContext to new GrContextPriv object)

TBR=bsalomon@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2176333002

Review-Url: https://codereview.chromium.org/2176333002

Show SVG file name in SampleApp title

R=robertphillips@google.com,stephana@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2217483002

Review-Url: https://codereview.chromium.org/2217483002

Revert of Update skimage VERSION: attempt 2 (patchset #1 id:1 of https://codereview.chromium.org/2213973002/ )

Reason for revert:
Think this is going to break Windows again.

Original issue's description:
> Update skimage VERSION: attempt 2
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2213973002
>
> Committed: https://skia.googlesource.com/skia/+/d6dec3f4a1365d34e147234acf3c4a3629146457

TBR=borenet@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/2216523003

Update skimage VERSION: attempt 2

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2213973002

Review-Url: https://codereview.chromium.org/2213973002

Speculative fix for internal builds

Guard the DMSrcSink SkSVGDOM.h include.

TBR=dogben@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2210583003

Review-Url: https://codereview.chromium.org/2210583003

Remove GrRenderTarget member variable from SkGpuDevice

Split out of: https://codereview.chromium.org/2176333002/ (Remove SkSurface::MakeRenderTargetDirect)

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2208483004

Review-Url: https://codereview.chromium.org/2208483004

spin off easy stuff from Herb's windows GN CL

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2209533004

No public API changes.
TBR=reed@google.com

Review-Url: https://codereview.chromium.org/2209533004

Revert of Update to new skimage VERSION (patchset #1 id:1 of https://codereview.chromium.org/2211633002/ )

Reason for revert:
The CIPD package is broken

Original issue's description:
> Update to new skimage VERSION
> TBR=borenet@google.com
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2211633002
>
> Committed: https://skia.googlesource.com/skia/+/52d1be5ca7b1ba8cc450be7dd6377ea5bb73386a

TBR=msarett@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/2216613002

Add an SVG DM source

R=mtklein@google.com,robertphillips@google.com,stephana@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2209593004

Review-Url: https://codereview.chromium.org/2209593004

Revert of SkRTConf: reduce functionality to what we use, increase simplicity (patchset #8 id:150001 of https://codereview.chromium.org/2212473002/ )

Reason for revert:
missed GrVkPipelineStateCache

Original issue's description:
> SkRTConf: reduce functionality to what we use, increase simplicity
>
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2212473002
> DOCS_PREVIEW= https://skia.org/?cl=2212473002
> CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
>
> [mtklein]
> TBR=reed@google.com
> Only removing unused public API.
>
> Committed: https://skia.googlesource.com/skia/+/ef59974708dade6fa72fb0218d4f8a9590175c47

TBR=halcanary@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/2215433003

Update to new skimage VERSION
TBR=borenet@google.com
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2211633002

Review-Url: https://codereview.chromium.org/2211633002

Fix compiler complaints about uninit vars

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206143003

Review-Url: https://codereview.chromium.org/2206143003

SkRTConf: reduce functionality to what we use, increase simplicity

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2212473002
DOCS_PREVIEW= https://skia.org/?cl=2212473002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

[mtklein]
TBR=reed@google.com
Only removing unused public API.

Review-Url: https://codereview.chromium.org/2212473002

GN: build sfntly, icu, harfbuzz

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2200833010

Review-Url: https://codereview.chromium.org/2200833010

Move GrContext::makeDrawContext to new GrContextPriv object

We don't want external clients to be able to call the wrapping makeDrawContext. The "creating" makeDrawContext needs to be public for external image filters.

The 3 specialized drawContext creators on GrContextPriv (to wrap backend objects) are also to be kept from public use and will be used to remove SkSurface::MakeRenderTargetDirect.

Split out of: https://codereview.chromium.org/2176333002/ (Remove SkSurface::MakeRenderTargetDirect)

TBR=bsalomon@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2211473002

Review-Url: https://codereview.chromium.org/2211473002

Require gn format in presubmit

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2203283003

Review-Url: https://codereview.chromium.org/2203283003

SkPDF: fewer GYP_DEFINES

also: hack a unit test

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2208743003

Review-Url: https://codereview.chromium.org/2208743003

Convert SkAutoTUnref<SkData> to sk_sp<SkData>.

With the move from SkData::NewXXX to SkData::MakeXXX most
SkAutoTUnref<SkData> were changed to sk_sp<SkData>. However,
there are still a few SkAutoTUnref<SkData> around, so clean
them up.

Review-Url: https://codereview.chromium.org/2212493002

Perform color correction on png decodes

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2184543003
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review-Url: https://codereview.chromium.org/2184543003

added initial GLSL support to skslc

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2185393003

Review-Url: https://codereview.chromium.org/2185393003

Add new benchmark for testing special hard stop gradient cases

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206713002

Review-Url: https://codereview.chromium.org/2206713002

SkPDF: PDFShader code modernized.

Motivation:  reduce code complexity.

SkCanon stores SkPDFShader::State next to SkDFObject, not inside.

many places use sk_sp<T> rather than T* to represent ownership.

SkPDFShader::State no longer holds bitmap.

SkPDFShader::State gets move constructor, no longer heap-allocated.

Classes removed:
  SkPDFFunctionShader
  SkPDFAlphaFunctionShader
  SkPDFImageShader

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193973002

Review-Url: https://codereview.chromium.org/2193973002

Make SK_BUILD_FOR_WIN32 auto-detection work.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2205173003

No public API changes
TBR=reed@google.com

Review-Url: https://codereview.chromium.org/2205173003

Finish delete of SkNinePatch

TBR=djsollen@google.com
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206333002

Review-Url: https://codereview.chromium.org/2206333002

SkShaper: optionally disable harfbuzz

also, re-enable warnings.

motivation:  used by me for PDF testing.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2201153002

Review-Url: https://codereview.chromium.org/2201153002

[Recipes] Move test and perf steps into test and perf recipes

This looks like another big change, but I really just moved blocks of code around.  Again, no expectations diffs because no behavior is changed.

BUG=skia:5578
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2198973002

Review-Url: https://codereview.chromium.org/2198973002

[SVGDom] Initial SVGLength support

Mostly plumb new length types, but also introduce a stateful parser,
rect shape and named color support.

R=reed@google.com,robertphillips@google.com,stephana@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202053002

Review-Url: https://codereview.chromium.org/2202053002

Fix fake_specs.py, update recipe expectation

BUG=skia:5578
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2200763002

Review-Url: https://codereview.chromium.org/2200763002

Fix dtor bug in SkLights

The overriding problem was that the SkTDArray wasn't calling the SkLight destructors.

TBR=reed@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206823003

Review-Url: https://codereview.chromium.org/2206823003

GN: gpu support in tools

If you want to try this out, the DOCS_PREVIEW link is a quickstart.

Are the GrGLCreateNativeInteface_* meant to be part of Skia-the-library
or just used by testing tools?  I've got it written here as tool-only,
but we could easily move it to libskia if it's a thing we want to ship.

I'm honestly not sure I understand how this linked before without a definition
of GrGLCreateNativeInterface().  Or are there two, one real and one no-op
default with some sort of weak linking setup?  dlopen()?

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2201233003
DOCS_PREVIEW= https://skia.org/user/quick/gn?cl=2201233003

Review-Url: https://codereview.chromium.org/2201233003

SK_GAMMA_SRGB is the default.

Looks like that other CL stuck just fine.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2207013002

Review-Url: https://codereview.chromium.org/2207013002

Re-organize Skia recipes

Break Skia recipe module into:
  - skia_vars: defines and stores variables (eg. paths)
  - skia_step: utilities for running Skia steps
  - skia_flavor: flavor-specific stuff
  - skia: top-level setup, checkout, test/perf steps, etc etc

This establishes a saner dependency structure for the recipes; skia_vars
is at the bottom level, skia_step depends on it, skia_flavor depends on
both of them, skia depends on all of the above, and the recipes
themselves may depend on any or all of them.

Next steps:
  - Merge buildbot_spec into skia_vars
  - Move test_steps and perf_steps from skia recipe_module into
    swarm_test and swarm_perf recipes
  - Cleaner checkout_steps process

BUG=skia:5578
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2198173002

Review-Url: https://codereview.chromium.org/2198173002

Update hardstop_gradients GM to include more special cases

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2204873005

Review-Url: https://codereview.chromium.org/2204873005

Don't leave fResScale uninitialized when constructing an SkStroke.

Set a default value of 1.  Users can set it with setResScale, but it's better
that the constructor doesn't just leave the field uninitialized otherwise.

R=reed@google.com
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2207753003

Review-Url: https://codereview.chromium.org/2207753003

Fix copy-paste bugs in SkCanvas Nine and Lattice

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2203983002

Review-Url: https://codereview.chromium.org/2203983002

GN: add tests to DM

depends on https://codereview.chromium.org/2202203003 and https://codereview.chromium.org/2208433002

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2203143002

CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-GN-Trybot,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-GN-Trybot,Test-Mac-Clang-MacMini6.2-CPU-AVX-x86_64-Debug-GN-Trybot,Test-Mac-Clang-MacMini6.2-CPU-AVX-x86_64-Release-GN-Trybot,Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Debug-GN-Trybot,Test-Ubuntu-Clang-GCE-CPU-AVX2-x86_64-Release-GN-Trybot

Review-Url: https://codereview.chromium.org/2203143002

Fixed ambient lighting calculations on SkLightingShader

BUG=skia:5520
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202233003

Review-Url: https://codereview.chromium.org/2202233003

Move off SK_SUPPORT_LEGACY_DATA_FACTORIES.

This moves Skia code off of SK_SUPPORT_LEGACY_DATA_FACTORIES.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206633004

Review-Url: https://codereview.chromium.org/2206633004

GN: get echo-headers sources via exec_script

exec_script runs every time gn does, which is explicitly on every one of our
bot runs.  That should be enough to obviate the .git/logs/HEAD hack.

Easiest way to do this was to swap around find.py's argument order to allow
multiple search directories.  This is the root of all the .gyp changes.

This moves the blacklist into BUILD.gn, which I think is nice.
It expands it a little as we're now searching recursively, into include/gpu/vk
which we can't include safely without the Vulkan SDK.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2205903004

Review-Url: https://codereview.chromium.org/2205903004

Delete SkNinePatch

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206663002

Review-Url: https://codereview.chromium.org/2206663002

GN: re-run echo_headers if git state changes.

This should mean it re-runs if a header is added or removed.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206683002

Review-Url: https://codereview.chromium.org/2206683002

Delete SkARGBImageEncoder.

It appears to be unused now except by its unit test, also deleted.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2208433002

No public API changes.
TBR=reed@google.com

Review-Url: https://codereview.chromium.org/2208433002

not much point to SK_SUPPORT_PDF

It only controls a few minor things in testing tools,
which can always assume PDF support is present.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202203003

Review-Url: https://codereview.chromium.org/2202203003

Refactor of SkColorSpaceXformOpts

(1) Performance is better or stays the same.

(2) Code is split into functions (RasterPipeline-ish
    design).  IMO, it's not really more or less readable.
    But I think it's now much easier add capabilities,
    apply optimizations, or do more refactors.  Or to
    actually use RasterPipeline.  I help back from trying
    any of these to try to keep this CL sane.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2194303002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review-Url: https://codereview.chromium.org/2194303002

Remove now unused source files.

These files have been renamed and exist only as stubs for transition
reasons. Remove these now unused stubs.

CQ_INCLUDE_TRYBOTS=master.client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot

Review-Url: https://codereview.chromium.org/2197423003

gn: fix fiddle

  - __SK_FORCE_IMAGE_DECODER_LINKING makes sure the PNG encoder is linked
  - updated path to make working with sample draw.cpp easier.

No public API changes.
TBR=reed@google.com

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202353002

Review-Url: https://codereview.chromium.org/2202353002

Remove 'Ulta' width.

All users of this old name appear to be updated.

TBR=reed
Removing unused and mis-spelled API.

Review-Url: https://codereview.chromium.org/2206453003

Add Overstroke gm

Already exists as a sampleapp, but sampleapps don't get tested
automatically

BUG=skia:5405,5406,chrome:589769
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2161633002

Review-Url: https://codereview.chromium.org/2161633002

Add code to lua paths to get the fill path and get lists of verbs and
points

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2199823002

Review-Url: https://codereview.chromium.org/2199823002

Fix build_command_buffer for Windows

BUG=skia:5597
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2207563002

Review-Url: https://codereview.chromium.org/2207563002

Add drawImageLattice() and drawBitmapLattice() APIs

The specified image/bitmap is divided into rects, which
can be draw stretched, shrunk, or at a fixed size.  Will be
used by Android to draw 9patch (which are acutally N-patch)
images.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1992283002

Review-Url: https://codereview.chromium.org/1992283002

Rename FontConfigInterface font manager files.

These files are now so badly misnamed that it is causing problems.
The original files are kept as shells until Chromium and PDFium can
be updated. After Chromium and PDFium builds are updated, the old
files will be removed and the cmake and bzl builds will be updated.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2199973002
CQ_INCLUDE_TRYBOTS=master.client.skia.compile:Build-Ubuntu-GCC-x86_64-Release-CMake-Trybot,Build-Mac-Clang-x86_64-Release-CMake-Trybot

Review-Url: https://codereview.chromium.org/2199973002

Fix Chrome build for RecreateSKPs and CommandBuffer bots for GYP->GN

BUG=skia:5597
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2199273002

Review-Url: https://codereview.chromium.org/2199273002

More fixes for SwarmBucket

BUG=skia:5581
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202053005
NOTRY=true

Review-Url: https://codereview.chromium.org/2202053005

Always return ImageShader, even from SkShader::MakeBitmapShader

Lessons learned

1. ImageShader (correctly) always compresses (typically via PNG) during serialization. This has the surprise results of
- if the image was marked opaque, but has some non-opaque pixels (i.e. bug in blitter or caller), then compressing may "fix" those pixels, making the deserialized version draw differently. bug filed.
- 565 compressess/decompresses to 8888 (at least on Mac), which draws differently (esp. under some filters). bug filed.

2. BitmapShader did not enforce a copy for mutable bitmaps, but ImageShader does (since it creates an Image). Thus the former would see subsequent changes to the pixels after shader creation, while the latter does not, hence the change to the BlitRow test to avoid this modify-after-create pattern. I sure hope this prev. behavior was a bug/undefined-behavior, since this CL changes that.

BUG=skia:5595
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2195893002

Review-Url: https://codereview.chromium.org/2195893002

Roll recipe DEPS

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2205863002

Review-Url: https://codereview.chromium.org/2205863002

GN: add some missing SkCodec defines

    TURBO_HAS_...
    WEBP_SWAP_16BIT_CSP

BUG=skia:5591
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2196413003

Review-Url: https://codereview.chromium.org/2196413003

Fix SkJpegCodec::onSkipScanlines when TURBO_HAS_SKIP is not defined

I think I just broke this in:
https://codereview.chromium.org/2174493002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202763002

Review-Url: https://codereview.chromium.org/2202763002

Hide (mostly) unused SkColorSpace writeToICC() function

This originally was intended to be used for serialization, but
we've chosen another approach.

Includes a revert of:
https://codereview.chromium.org/2012133003/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193223002

Review-Url: https://codereview.chromium.org/2193223002

Sketch SkPictureRecorder::optimizeFor(GrContext*).

I'm open to API suggestions.
We can pass this in finishAs(), up front, whatever.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2203453002

Review-Url: https://codereview.chromium.org/2203453002

GN: use the correct fontconfig font mugger.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202733002

Review-Url: https://codereview.chromium.org/2202733002

Replace 'Ulta' with 'Ultra'.

Start fixing a typo in an enum name.

TBR=reed
This is just a typo fix.

Review-Url: https://codereview.chromium.org/2202703002

Pick the right download tool for windows.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197423002

Review-Url: https://codereview.chromium.org/2197423002

Added distance vector support for CircleGeometryProcessor

This CL's base is the CL that sets up the distance vector field req. exposure: https://codereview.chromium.org/2114993002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2190023002

Committed: https://skia.googlesource.com/skia/+/779e1924eaf7c5652dee93e0e8e975bbf5723b37
Review-Url: https://codereview.chromium.org/2190023002

implement isABitmap for imageshader, return localmatrix for bitmap's impl

For imageshader, I only return true if the image is explicitly raster-backed. I do not return true for texture, nor for generator (i.e. lazy/picture) backed. Is that ok?

BUG=skia:5592
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197323002

Review-Url: https://codereview.chromium.org/2197323002

Replace old SkRecords RefBox with sk_sp.

The main differences are that RefBox's constructor reffed and sk_sp's doesn't,
and that RefBox auto-casts to the underlying pointer while sk_sp doesn't.

I've added a bunch of sk_ref_sp() and .get() to compensate.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197243003

Review-Url: https://codereview.chromium.org/2197243003

make an image from a mutable bitmap

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2199813002

Review-Url: https://codereview.chromium.org/2199813002

GrFP can express distance vector field req.,  program builder declares variable for it

This update allows fragment processors to require a field of vectors to the nearest edge. This requirement propagates:

- from child FPs to their parent
- from parent FPs to the GrPaint
- from GrPaint through the PipelineBuilder into GrPipeline
- acessed from GrPipeline by GrGLSLProgramBuilder

GrGLSL generates a variable for the distance vector and passes it down to the GeometryProcessor->emitCode() method.

This CL's base is the CL for adding the BevelNormalSource API: https://codereview.chromium.org/2080993002

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2114993002

Committed: https://skia.googlesource.com/skia/+/4ef6dfa7089c092c67b0d5ec34e89c1e319af196
Review-Url: https://codereview.chromium.org/2114993002

GN: only include headers in echo_headers.py

This keeps things like VIM .swp files out of skia.h.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2202643002

Review-Url: https://codereview.chromium.org/2202643002

adding new GM to demostrate new shadows

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2118553002

Review-Url: https://codereview.chromium.org/2118553002

Add SkColorSpace::Equals() API

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2196743002

Review-Url: https://codereview.chromium.org/2196743002

Default fake gamma to sRGB.

No one appears to be using the default 2.2.
This makes SK_GAMMA_SRGB the default / a no-op, which seems more realistic.

Chrome's explicitly setting SK_GAMMA_EXPONENT or SK_GAMMA_SRGB.
We set Android platform explicitly to 1.4.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2198073002

Review-Url: https://codereview.chromium.org/2198073002

GN: define fake-gamma configuration to match our bots.

This should fix many of the GN text diffs in Gold.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2195393002

Review-Url: https://codereview.chromium.org/2195393002

GN: Define SK_HAS_... in all Skia-private code, not just libskia.

SkForceLinking wasn't force-linking the WEBP encoder, or any encoder.
(The others must be explicitly used.)

This should help the GN Debug Perf bots progress past

    Running Encode_color_wheel.jpg_WEBP nonrendering
    ../../../bench/EncoderBench.cpp:58: fatal error: "assert(data)"

On my laptop, a debug nanobench run now finishes.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2196243002

Review-Url: https://codereview.chromium.org/2196243002

Remove some ancillary users of SkSurface::MakeRenderTargetDirect

calved off of: https://codereview.chromium.org/2176333002/ (Remove SkSurface::MakeRenderTargetDirect)

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2198433003

Review-Url: https://codereview.chromium.org/2198433003

Stop running nanobench on Test.*Debug bots

We'll need to add Perf.*Debug bots to achieve the same coverage.

BUG=skia:4768
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2189393002
NOTREECHECKS=true

Review-Url: https://codereview.chromium.org/2189393002

Revert of GrFP can express distance vector field req.,  program builder declares variable for it (patchset #20 id:370001 of https://codereview.chromium.org/2114993002/ )

Reason for revert:
UBSAN says we're reading a bad bool here:
bool usesDistanceVectorField() const { return fUsesDistanceVectorField; }

../../../include/gpu/GrPaint.h:83:51: runtime error: load of value 239, which is not a valid value for type 'bool'
SUMMARY: AddressSanitizer: undefined-behavior ../../../include/gpu/GrPaint.h:83:51 in

Seems likely also the root of Valgrind failure:
https://luci-milo.appspot.com/swarming/task/30522e4f2241cb10

Original issue's description:
> GrFP can express distance vector field req.,  program builder declares variable for it
>
> This update allows fragment processors to require a field of vectors to the nearest edge. This requirement propagates:
>
> - from child FPs to their parent
> - from parent FPs to the GrPaint
> - from GrPaint through the PipelineBuilder into GrPipeline
> - acessed from GrPipeline by GrGLSLProgramBuilder
>
> GrGLSL generates a variable for the distance vector and passes it down to the GeometryProcessor->emitCode() method.
>
> This CL's base is the CL for adding the BevelNormalSource API: https://codereview.chromium.org/2080993002
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2114993002
>
> Committed: https://skia.googlesource.com/skia/+/4ef6dfa7089c092c67b0d5ec34e89c1e319af196

TBR=egdaniel@google.com,robertphillips@google.com,bsalomon@google.com,dvonbeck@google.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Review-Url: https://codereview.chromium.org/2201613002

Revert of Tidy up SkNx_neon. (patchset #3 id:40001 of https://codereview.chromium.org/2196773002/ )

Reason for revert:
https://luci-milo.appspot.com/swarming/task/3055149a25621b10

Not Nexus 5 specific.   Reproduces on Pixel C with --gcc -t Debug -d arm_v7_neon.  Not sure about other configs yet.

Original issue's description:
> Tidy up SkNx_neon.
>
> This takes advantage of the fact that all the compilers we use that
> support NEON implement it with their own vector extensions.  This means
> normal things like c = a + b work on the underlying vector types already.
> Odd instructions like min or saturated add need to stay intrinsics.
>
> Also, rearrange functions to a more consistent order.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2196773002
> CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
>
> Committed: https://skia.googlesource.com/skia/+/6ad22315eb6eacfcd35497cd118440a619d05b18

TBR=msarett@google.com,mtklein@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Review-Url: https://codereview.chromium.org/2196953002

Revert of Added distance vector support for CircleGeometryProcessor (patchset #4 id:60001 of https://codereview.chromium.org/2190023002/ )

Reason for revert:
Reverting so I can revert https://codereview.chromium.org/2114993002/

Original issue's description:
> Added distance vector support for CircleGeometryProcessor
>
> This CL's base is the CL that sets up the distance vector field req. exposure: https://codereview.chromium.org/2114993002/
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2190023002
>
> Committed: https://skia.googlesource.com/skia/+/779e1924eaf7c5652dee93e0e8e975bbf5723b37

TBR=egdaniel@google.com,robertphillips@google.com,dvonbeck@google.com
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=skia:

Review-Url: https://codereview.chromium.org/2196053002

Docs: ooops, debug is the default in GN.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2195173002
NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=2195173002

TBR=jcgregorio@google.com

Review-Url: https://codereview.chromium.org/2195173002

SkRasterPipeline: new APIs for fusion

Most visibly this adds a macro SK_RASTER_STAGE that cuts down on the boilerplate of defining a raster pipeline stage function.

Most interestingly, SK_RASTER_STAGE doesn't define a SkRasterPipeline::Fn, but rather a new type EasyFn.  This function is always static and inlined, and the details of interacting with the SkRasterPipeline::Stage are taken care of for you: ctx is just passed as a void*, and st->next() is always called.  All EasyFns have to do is take care of the meat of the work: update r,g,b, etc. and read and write from their context.

The really neat new feature here is that you can either add EasyFns to a pipeline with the new append() functions, _or_ call them directly yourself.  This lets you use the same set of pieces to build either a pipelined version of the function or a custom, fused version.  The bench shows this off.

On my desktop, the pipeline version of the bench takes about 25% more time to run than the fused one.

The old approach to creating stages still works fine.  I haven't updated SkXfermode.cpp or SkArithmeticMode.cpp because they seemed just as clear using Fn directly as they would have using EasyFn.

If this looks okay to you I will rework the comments in SkRasterPipeline to explain SK_RASTER_STAGE and EasyFn a bit as I've done here in the CL description.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2195853002

Review-Url: https://codereview.chromium.org/2195853002

simplify neon shifts

These still generate vshr/vshl with immediates with both GCC and Clang.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2194953002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Based on https://codereview.chromium.org/2196773002

Review-Url: https://codereview.chromium.org/2194953002

If scissor would be empty in GrClipMaskManager::SetupClipping indicate draw can be skipped.

BUG=chromium:632185
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2196803002

Review-Url: https://codereview.chromium.org/2196803002

Add ES 3.0 fallback for instanced rendering

Adds the ability for GLInstancedRendering to use
glDrawElementsInstanced when glDrawElementsIndirect is not supported.

The only remaining 3.1 dependency now is EXT_texture_buffer.

Also moves the cap for glDraw*Instanced out of GrCaps and into
GrGLCaps.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193303002

Review-Url: https://codereview.chromium.org/2193303002

Fix vulkan build

TBR=bsalomon@google.com
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193883002

Review-Url: https://codereview.chromium.org/2193883002

Added distance vector support for CircleGeometryProcessor

This CL's base is the CL that sets up the distance vector field req. exposure: https://codereview.chromium.org/2114993002/

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2190023002

Review-Url: https://codereview.chromium.org/2190023002

Tidy up SkNx_neon.

This takes advantage of the fact that all the compilers we use that
support NEON implement it with their own vector extensions.  This means
normal things like c = a + b work on the underlying vector types already.
Odd instructions like min or saturated add need to stay intrinsics.

Also, rearrange functions to a more consistent order.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2196773002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review-Url: https://codereview.chromium.org/2196773002

perf: Upload results to gs://skia-perf, not gs://chromium-skia-gm.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197643002

Review-Url: https://codereview.chromium.org/2197643002

Conditionally define SK_SUPPORT_LEGACY_DATA_FACTORIES.

In order to remove this define it will first need to be defined in
Chromium. However, doing so causes redefinition warnings as errors.
Only define this macro if it is not already defined to avoid this.

TBR=reed
This doesn't change any API.

Review-Url: https://codereview.chromium.org/2198453002

Properly recycle uniform buffers in vulkan

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2195713002

Review-Url: https://codereview.chromium.org/2195713002

Add some GN builders to the CQ.

This parallels the set of bots we use to gate commits already.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2189283003

Review-Url: https://codereview.chromium.org/2189283003

SkPDF: PDFStream has-a not is-a PDFDict

Motivation:
SkPDFStream and SkPDFSharedStream now work the same.

Also:
- move SkPDFStream into SkPDFTypes (it's a fundamental PDF type).
- minor refactor of SkPDFSharedStream
- SkPDFSharedStream takes unique_ptr to represent ownership

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2190883003

Review-Url: https://codereview.chromium.org/2190883003

SkNx: add Sk4u

This lets us get at logical >> in a nicely principled way.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197683002
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review-Url: https://codereview.chromium.org/2197683002

GrFP can express distance vector field req.,  program builder declares variable for it

This update allows fragment processors to require a field of vectors to the nearest edge. This requirement propagates:

- from child FPs to their parent
- from parent FPs to the GrPaint
- from GrPaint through the PipelineBuilder into GrPipeline
- acessed from GrPipeline by GrGLSLProgramBuilder

GrGLSL generates a variable for the distance vector and passes it down to the GeometryProcessor->emitCode() method.

This CL's base is the CL for adding the BevelNormalSource API: https://codereview.chromium.org/2080993002

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2114993002

Review-Url: https://codereview.chromium.org/2114993002

GN: components as static library instead of source set

This also puts the .a in the top-level of the ouptut directory, just
like we do for .so files.  It's less required than for .sos, but it
does make it easier to find the .a.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197633002

Review-Url: https://codereview.chromium.org/2197633002

Fix various SkColorSpace bugs

(1) Fixes serialization/deserialization of wacky SkColorSpaces
(2) Fix gamma equals checking

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2194903002

Review-Url: https://codereview.chromium.org/2194903002

Use HashSet instead of Dynamic hash for tracking vulkan resources

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2194823003

Review-Url: https://codereview.chromium.org/2194823003

[SVGDom] Parse style attributes

Dispatch style-encoded (style="foo: bar; ...") attributes via normal
attribute setters.

R=reed@google.com,robertphillips@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2193663002

Review-Url: https://codereview.chromium.org/2193663002

SkPDF: flip saveLayer rightside up

Broken in https://skia.googlesource.com/skia/+/4b1e17e

BUG=632574
TBR=tomhudson@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2197623002

Review-Url: https://codereview.chromium.org/2197623002

GN: quick doc

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2192203002
NOTRY=true
DOCS_PREVIEW= https://skia.org/user/quick/gn?cl=2192203002

Review-Url: https://codereview.chromium.org/2192203002