The glmark2 benchmark score went down (on Android with Pixel devices)
when ANGLE changed VkSwapchainCreateInfoKHR::minImageCount from 3 down
to 2, when using VK_PRESENT_MODE_MAILBOX_KHR.  In experimenting, this
was confirmed.  This CL changes minImageCount back to 3.

Vulkan spec issue #1671 was filed in order to understand whether this
is a good/bad approach for other drivers/platforms.

Test: glmark2 on Pixel2.
Bug: angleproject: 3400
Change-Id: Ia4a72733eb648e4f53feeb8833b174d653fa5766
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1610242
Commit-Queue: Ian Elliott <ianelliott@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>

Bug: 962555, 962636
Change-Id: I4a22f83689252b7b7e51bbb3fc80e8f0d601a43f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1610701Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>

This should let the Vulkan back-end only need to sync the Image data
once before we use them.

Bug: angleproject:3427
Change-Id: I8c6e8794e861f855bddbf651997351e8415e3479
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1602912
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Removes the EGL 1.5 overrides now that they are upstreamed.

Bug: angleproject:3446
Change-Id: I4b17354518534ea821bba83a4b1e00f83f80ac37
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1605786Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Previously, a pass over the shader was made, converting shared and
packed interface blocks with block storage to std140.  This resulted in
link success between interface blocks with different storage as they
were all translated to std140.

With this change, this pass is removed.  The link step proceeds with the
block storage specifiers as seen by GLES, and only upon Vulkan GLSL
shader generation "shared" and "packed" are converted to std140.

Bug: angleproject:3199
Change-Id: I069415ab9c9b4e1034bc00f64cd2d9e2d73f5956
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1605262
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Bug: angleproject:3198
Change-Id: Icb63d036a756b849c44d36342c7ba2fc2db0f910
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1604069
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tobin Ehlis <tobine@google.com>

These error strings are stored for recording later we can't depend on them
still being alive so make a copy.

BUG=962439

Change-Id: Ie9156c99b9ce79df4a11087bdcab92d980e959a4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1610078Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

It's no longer needed.

Bug: chromium:947060
Change-Id: I873f17a4876b9d0fac313740853054b6867afeb9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1610077Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Headers.git/+log/c4f8f65792d4..4b0985f29277


Created with:
  gclient setdep -r ./third_party/spirv-headers/src@4b0985f29277

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-headers-angle-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
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TBR=jonahr@google.com

Change-Id: Iae2bdf19c951a5eaa2f53872b85c14370a5de8ce
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1608833Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/f6d9a1784313..2947e88f7938


Created with:
  gclient setdep -r ./third_party/spirv-tools/src@2947e88f7938

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-angle-autoroll

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If the roll is causing failures, please contact the current sheriff, who should
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Change-Id: I748a71d6f3593926babffeb8fa51e28c52564d20
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1608835Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/2dd4ab3a4acb..6e384fef6c0f


Created with:
  gclient setdep -r ./third_party/glslang/src@6e384fef6c0f

The AutoRoll server is located here: https://autoroll.skia.org/r/glslang-angle-autoroll

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Change-Id: I77af0c451be06bf5965aa44cbbb9040fac0d7742
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1608834Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

It will always return true if all 4 channels of color mask are set
to false.

This should only apply to WebGL. Will fix this in a later patch.

Bug: chromium:958374

Change-Id: I46befaf3ae1b63027dfbb309ac32724c616025d3
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1594629
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

The charts tend to be static for many days in a row, which will now be
filtered to be more succinct.
Also fixes issue parsing when a message interrupts the formatted *RESULT
token.

Bug: angleproject:3435
Change-Id: I9ed213844de469c7a8240ee95aab82451888edf1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1606029Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

This makes the style use CamelCase instead of ALL_CAPS. It also cleans
up some of the naming. It also changes some uses of the messages in
some of the objects to hopefully be more consistent. See the comments
added to the enum SubjectMessage in Observer.h for more details.

Bug: angleproject:3427
Change-Id: I6dff4f6d335ecf1a27e48df65743b1490bd3025a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1600411
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Bug: angleproject:3198
Change-Id: Iac5d1389f4f466b7886246d8ca529e8f26a6a5bd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1603629Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/e291f7a09f67..2dd4ab3a4acb


Created with:
  gclient setdep -r ./third_party/glslang/src@2dd4ab3a4acb

The AutoRoll server is located here: https://autoroll.skia.org/r/glslang-angle-autoroll

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TBR=jonahr@google.com

Change-Id: Ic93d9def4f27b4acb8243d7bceee4ec0303173cb
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1604104Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/89fe836fe22c..f6d9a1784313


Created with:
  gclient setdep -r ./third_party/spirv-tools/src@f6d9a1784313

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-angle-autoroll

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Change-Id: Iee30560a214dfad1adb259ec0b836be55dad62bc
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1604105Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

Natively supported with GLES3 dEQP tests already enabled and passing.

Bug: angleproject:3218
Change-Id: I5ff94e3b16d2025a58d5a448383049f9330dd46f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1600864
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Bug: angleproject:3219
Change-Id: I2e0b60bda9c3af2b9eadf2efd3899250925897f4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1600335
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Bug: angleproject:3219
Change-Id: I8f8f5572eed5126ab03702953883b313f022a264
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1598548
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

In GLES, color attachments are referenced by their indices.  These
indices match between the API and GLSL.  For example, if a shader has:

layout(location=0) out color;
layout(location=3) out roughness;

Then GLES would bind and enable GL_COLOR_ATTACHMENT0 and
GL_COLOR_ATTACHMENT3.

In Vulkan, the framebuffer object and the corresponding renderpass
define the color attachments, and they don't allow gaps in color
attachments as GLES does.  A render subpass creates the mapping between
the color attachments as defined in the framebuffer and the attachments
used by the shader (with possible gaps).

This change packs the enabled GL color attachments for the sake of the
framebuffer, and sets the subpass up in such a way that the shaders
continue to use the same color output indices as GLES.

In the example above, we have the attachment indices as follows:

 Status  | GLES | GLSL | RenderPass | Subpass

enabled     0      0         0           0
disabled    1      -                 VK_ATTACHMENT_UNUSED
disabled    2      -                 VK_ATTACHMENT_UNUSED
enabled     3      3         1           1

That is, the array of color attachments in the Vulkan
framebuffer/renderpass is:

[0] = GL color attachment 0
[1] = GL color attachment 3

And the array of color attachment references in the Vulkan render
subpass is:

[0] = 0 (index 0 of the renderpass attachment array)
[1] = VK_ATTACHMENT_UNUSED
[2] = VK_ATTACHMENT_UNUSED
[3] = 1 (index 1 of the renderpass attachment array)

Bug: angleproject:2394
Change-Id: Ib6cd2b60882643ea152986eee453270d09cd4aed
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1595442
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>

Change each workaround from a simple bool to a struct with info
including name, workaround set, description, and bug IDs. This will help
with future workaround integration with Chrome.

Bug: angleproject:1621
Change-Id: Ia27c180abaf845e280060c803e5994cc3152a057
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1593917
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Remove the EGL validation related to context version numbers since a
backwards compatible context could be created and shared, causing a
version mis-match.

Test: angle_deqp_egl_tests
Bug: angleproject:3243
Change-Id: Iae818433fea1b230b50aa47c14f084e9079c3583
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1592133
Commit-Queue: Tim Van Patten <timvp@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Previously removed supporting code for the workaround
"dontRemoveInvariantForFragmentInput" but missed this declaration.

Bug: angleproject:3285
Change-Id: Ia23b424f2ccbdfe98b7cec79e4290b3621e44238
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1601945Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Tobin Ehlis <tobine@google.com>

Bug: angleproject:3436
Change-Id: If912ae75c96c34b27967f592910c2ee3403b24cc
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1602178Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/f88e5824d2cf..e291f7a09f67


Created with:
  gclient setdep -r ./third_party/glslang/src@e291f7a09f67

The AutoRoll server is located here: https://autoroll.skia.org/r/glslang-angle-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
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TBR=jonahr@google.com

Change-Id: Ia86e00c357164ee9c841d25fb19cc2e6f66d7251
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1602274Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/d0a1f5a05a2b..89fe836fe22c


Created with:
  gclient setdep -r ./third_party/spirv-tools/src@89fe836fe22c

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-angle-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
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TBR=jonahr@google.com

Change-Id: I247e92a8fb80856e977a2a611609f7c259194faa
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1602275Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

GL_OVR_multiview functions exactly the same as GL_OVR_multiview2.
All GL_OVR_multiview2 tests now also repeat the same test using GL_OVR_multiview

Bug: angleproject:3341
Change-Id: I7e5294fb6bbf7692535174a15da6a42e1b5fc4e2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1575904
Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

With recent pragma invariant(all) fix the pragma_vertex test is failing
on MAC so excluding it from testing.

Bug: angleproject:3285
Bug: angleproject:3433
Bug: angleproject:3434
Change-Id: I59079afdbef2d23a593fe0fe061997624fea5cde
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1601364
Commit-Queue: Tobin Ehlis <tobine@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

We were using 'bb ls ... -A' which combines '-p' and '-steps', but we
only parse information from '-p'. Updates the script to only call what
it needs. Also works around current issue with '-A'.

Bug: angleproject:3429
Change-Id: I10d412885663feefd300eb135dae70b499fedd7f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1600334Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

Instead of inheriting from testing::Test's SetUp and TearDown we add
new methods 'testSetUp' and 'testTearDown'. This helps prevent a common
error of forgetting to call the base class method.

Also add a check in the ANGLETest destructor that SetUp and TearDown
have been called.

Bug: angleproject:3393
Change-Id: Iab211305cc06ffea9ca649e864ddc9b180f2cba0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1593960Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

freeze happens after repetitive enter & exit full screen mode

Bug: angleproject:3431
Change-Id: Iea4cd75dc30cd17e53c0a7f1174e39b24d878d4b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1599617Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

primaryGPUIndex is being deprecated in favor of activeGPUIndex, which
represends the expected index of the GPU used for graphics.

Bug: angleproject:3383
Change-Id: I37f992adaf3716fc11e7f34b897c51c0148719cd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1592055Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

Rename existing depthTexture extension flag to depthTextureANGLE to
distinguish it from OES depth texture extension to be added.

Bug: angleproject:3103
Test: angle_end2end_tests --gtest_filter=DepthStencilFormatsTest.DepthTexture
Change-Id: I44c69a69b925a84f931518e0374e662893813061
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1575425
Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Enable standard derivatives by default for Vulkan.

Bug: angleproject:2903
Test: Validate Skia doesn't generate errors.
Test: CQ Runs
Change-Id: I7f180d4ca03c154db3e9562213127eca1ce65562
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1599857
Commit-Queue: Tim Van Patten <timvp@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

https://chromium.googlesource.com/external/github.com/google/googletest.git/+log/9997a830ee55..3f5b5b8f8493

$ git log 9997a830e..3f5b5b8f8 --date=short --no-merges --format='%ad %ae %s'
2019-05-03 absl-team Googletest export
2019-04-29 misterg Googletest export
2019-05-02 daquexian566 Fix -Wsign-conversion error by adding static_cast

Created with:
  roll-dep ./third_party/googletest/src

Change-Id: I41974bbd233d35b3368ffd42859a4fc8ae3220b0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1594628Reviewed-by: Victor Costan <pwnall@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/c0640dabfddd..f88e5824d2cf


Created with:
  gclient setdep -r ./third_party/glslang/src@f88e5824d2cf

The AutoRoll server is located here: https://autoroll.skia.org/r/glslang-angle-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
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TBR=jonahr@google.com

Change-Id: Ie032526d93c3e540e087994ef3ff3214bcff04ec
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1600705Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/63f57d95d6fa..d0a1f5a05a2b


Created with:
  gclient setdep -r ./third_party/spirv-tools/src@d0a1f5a05a2b

The AutoRoll server is located here: https://autoroll.skia.org/r/spirv-tools-angle-autoroll

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TBR=jonahr@google.com

Change-Id: I6f4dcc82c7d3cf50b91f8255d95b7108c8f89529
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1600322Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

Some Vulkan drivers are not clipping rendering that is outside of the viewport,
and the Vulkan spec has some language that indicates that ANGLE should set the
scissor:

  The application must ensure (using scissor if necessary) that all rendering
  is contained within the render area.

In this case, ANGLE is "the application".

Bug: angleproject:3253
Bug: angleproject:3254
Change-Id: I6885a3aa6daed57f6ae1c3d974663d763cad10c9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1553973Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Ian Elliott <ianelliott@google.com>

The "#pragma STDGL invariant(all)" directive should only be applied to
shader output vars. This change also removes the workaround
SH_DONT_REMOVE_INVARIANT_FOR_FRAGMENT_INPUT which is no longer needed.

This change fixes two tests that were incorrectly assuming that the
pragma would be applied to inputs: GLSLTest.InvariantAll[Both|In].

Bug: angleproject:1293
Bug: angleproject:3285
Change-Id: I4eb03fa89fbc7c560150ee0cc32382024b0cb3e3
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1558678Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tobin Ehlis <tobine@google.com>
Commit-Queue: Tobin Ehlis <tobine@google.com>