This patch adds the missing check on the shader version for compute
and geometry shaders, which can fix a bug that ANGLE GLSL compiler
doesn't report a compile error when compiling an empty compute or
geometry shader in version 100 or 300.

This patch also updates the original compiler tests on the check of
shader version. In these tests, the compile errors are all caused by
illegal layouts instead of shader versions, which is against the
purpose of the tests.

This patch also fixes an incorrect case that used an empty compute
shader in version 300.

BUG=angleproject:1442, angleproject:1941
TEST=angle_unittests

Change-Id: Ic26bb8eb312dbc0cec6a879997d0ae7a2e625a0f
Reviewed-on: https://chromium-review.googlesource.com/910715
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Camel casing is removed from the enums where it differs from the GLSL
spec. This way it's easier to autogenerate code for built-in
functions mapped to operators.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I2490d5d0e8ffb45eba343f225f76779e63381a65
Reviewed-on: https://chromium-review.googlesource.com/929361Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

An error will be generated either way if the extension symbols are
used incorrectly since each use of an extension function or variable
checks whether the extension is enabled.

We now also track extension in unmangled built-in names, so that
redefining built-ins of extensions that are not enabled can be
supported.

This includes refactoring the shader extension tests to share a common
helper class ShaderExtensionTest.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I9cc5e9bd62fa07796e69256a6a9a493531a62446
Reviewed-on: https://chromium-review.googlesource.com/926526
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

BUG=809881

Change-Id: I69c58c93597aea5a5c25298908592ce1ab4a957b
Reviewed-on: https://chromium-review.googlesource.com/929984Reviewed-by: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

Rendering with depth buffer disabled and stencil buffer enabled
leads to memory leak if we set viewport a large size on Intel
windows platforms. Add an end2end test case to catch this driver
bug.

TEST=DepthStencilFormatsTestES3.DrawWithLargeViewport/ES3_D3D11

BUG=782317

Change-Id: I16efb9459717e94e2edb5d5eb5dc24f47d746ea3
Reviewed-on: https://chromium-review.googlesource.com/858430
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Test various ways of organizing attributes: in memory or buffer object,
sequential or interleaved.
Test different types of vertex data.
Test non-indexed draw, indices in buffer, indices in memory.
Test starting at vertex zero and higher.

BUG=angleproject:1683

Change-Id: I54a752679b31bbb3f573c922d59da69a18302daa
Reviewed-on: https://chromium-review.googlesource.com/898608
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

There was a map() without a corresponding unmap().
Add a test which does multiple indexed draws, triggering the problem.

BUG=angleproject:2310

Change-Id: Id33d66f24de2005ec3f9958d33ab4c2630b49dc5
Reviewed-on: https://chromium-review.googlesource.com/875318Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>

This should also fix the VS project generation. Thanks to Jeff Gilbert
from Mozilla for sharing a list of missing files.

Bug: angleproject:2360
Change-Id: Ideab28a0169cd7aabb6a7bd3aac3a5832443f023
Reviewed-on: https://chromium-review.googlesource.com/922874Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This also renames CommandBufferNode to CommandGraphNode. It also
renames some of the intenal members to more closely represent the
tree relationships (parents/children). This should clean up the
command graph classes and make them a bit easier to understand.

Bug: angleproject:2361
Change-Id: I024bffcc7f4157c78072ef902a3c40a07a08b18a
Reviewed-on: https://chromium-review.googlesource.com/922121Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This shared state will be read-only visible in the RenderbufferImpl
class. It mirrors existing structs for Textures, Buffers, and other
classes. It allows the implementation class to have a read-only view
as to the current GL state of an object.

This will be useful to the Vulkan back-end, which would like to know
the current Renderbuffer state before having to redefine the storage.
If the current parameters match, it might not have to redefine the
storage at all.

The solution involves passing around the gl::RenderbufferState
through various factory methods.

Also name the Renderbuffer implementation pointer consistently and
make it use std::unique_ptr.

Bug: angleproject:2347
Change-Id: Ied6e0358e24e74a7fedbe4aea692edee909b5838
Reviewed-on: https://chromium-review.googlesource.com/922457
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2313

Change-Id: Ic1e679164d82f3024bb6842c9af2716aa10feb76
Reviewed-on: https://chromium-review.googlesource.com/900042
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

the tools folder.

Bug: angleproject:1569
Change-Id: Ic0161260e1c19fb660be06cd5a844f9031a77ef0
Reviewed-on: https://chromium-review.googlesource.com/926863Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Delay binding the VAO in VertexArrayGL::syncDrawState until we actually
need to make glVertexAttrib calls.

BUG=angleproject:2188

Change-Id: Ib7d22d641c9f19c639ba8c596bff6bc7de952e7f
Reviewed-on: https://chromium-review.googlesource.com/919503Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This expands the test to check for validation errors and that multiple
formats of IOSurfaces can be read from / rendered to. It fixes a couple
issues in the implementation of the extension too.

Minor fixes in the EGL_ANGLE_iosurface_client_buffer extension text.

Fix a fragile test that was not setting the texture unit a shader is to
sample from.

BUG=angleproject:1649

Change-Id: Ied2a9bfff95cb3a9a7a59008260899eb2fc55575
Reviewed-on: https://chromium-review.googlesource.com/924477Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

Access to TFunction parameters is now handled through two new members:
a pointer to a parameter array and a parameter count.

There's still also a vector pointer in TFunction for adding function
parameters one by one. This is used when parsing user-defined
functions.

TEST=angle_unittests
BUG=angleproject:2267

Change-Id: I86987ae56b7cf37f010d0651e9861789050aec2b
Reviewed-on: https://chromium-review.googlesource.com/923987Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

The lexical phase looks up symbols when it encounters an identifier.
Instead of duplicating this work when parsing non-constructor
functions, we now store the symbol looked up in the lexical phase in
TFunctionLookup.

This improves scores of the real world shader compiler perf test by
1-2%.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: Idc99776571313d8b654910f9daaf9bf34a048228
Reviewed-on: https://chromium-review.googlesource.com/923725
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Make the no-op happen in the Context, so we can properly generator
more errors for negative WebGL tests. Some validation tests still
need to check for no-ops, such as range checks.

BUG=angleproject:2050

Change-Id: I48d0b3cf640f7f128679600e5df108146cfd6348
Reviewed-on: https://chromium-review.googlesource.com/522869
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Creating an ImageView for color Renderbuffers allows us to render to
them in a RenderPass. We will also need additional functionality to
support depth/stencil Renderbuffers.

Bug: angleproject:2347
Change-Id: I5d4f7d8242ad4fbca38cb08c0cf6b43edca57c8f
Reviewed-on: https://chromium-review.googlesource.com/922456
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>

Built-ins with no math op associated with them now have the op code
EOpCallBuiltInFunction set. This makes initializing built-in function
nodes simpler, since they can always get the op code from the function
symbol.

We also no longer look for functions in inner scopes, only from the
global scope and from built-in functions.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I55a2642f34bb3c8b8f13183c95fa509ec3b9cfdb
Reviewed-on: https://chromium-review.googlesource.com/923724Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Support vertex data stored in client memory passed to glVertexAttribPointer.
Only GL_FLOAT data is supported at this time.  Includes a simple test.

BUG=angleproject:1683

Change-Id: I3bc0cdefe02b02c046b0e85822019a0f1762235e
Reviewed-on: https://chromium-review.googlesource.com/425137
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

That way, we don't have to explicitly disable Wimplicit-fallthrough
for these targets, and when we add new warnings to chromium_code in
the future, these targets won't need any special attention.

Like https://chromium-review.googlesource.com/c/chromium/src/+/905222

Bug: 807632
Change-Id: I3a605dd3ef9ed7d8cfe9e36964c3433040bfc330
Reviewed-on: https://chromium-review.googlesource.com/922503Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>

This fixes a build break because of 046fa0ef.
See: https://crrev.com/c/898591

Bug: angleproject:2333
Change-Id: I6a4cb60dd2d2958ea71aaa27f1429233c2787fb4
Reviewed-on: https://chromium-review.googlesource.com/922878Reviewed-by: Scott Graham <scottmg@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This change lets us create egl::Surfaces from a D24S8 config. This is
a bit hacky, because the spec only mandates 24 -or- 32 bit depth
support, but not both or either individually. Will need follow-up work
for proper EGL config setup.

A single depth buffer is allocated for the entire set of swapchain
images and is used with each. This also might be a problem if we're
rendering to multiple frames at the same time. We'll likely have to
revisit this in the future as well.

This adds a new RenderTargetVk to the SurfaceVk class which points to
the Depth/Stencil image. Since ImageViews must refer to either the
depth or stencil, but not both, we'll need to address this when we
get to implementing depth/stencil texture reads in shaders.

Bug: angleproject:2357
Change-Id: Ibed0eed7e1d0efb272758dbfc79fa2c5aa93997f
Reviewed-on: https://chromium-review.googlesource.com/919761Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Unmangled names of built-ins are not inserted to the symbol table in
a normal way, so the function to do that is not needed.

BUG=angleproject:2267
TEST=compile ANGLE

Change-Id: I68bae9a1f762ecc69ab31f04458a38c941b9d74c
Reviewed-on: https://chromium-review.googlesource.com/922202Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Also teach MSVC that ANGLE_CRASH() can't return.

Also fix instances of the warning in build configurations where
UNREACHABLE() can return (e.g. release without dcheck_always_on
or debug).

If the UNREACHABLE()s are truly unreachable, this change has
no behavior change.

Bug:  chromium:810767

Change-Id: I68f3587cf3e268c3ef634dce7ae3d70399859d0f
Reviewed-on: https://chromium-review.googlesource.com/914842Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>

This is to fix error messages when running GLES1 samples (and probably
other apps) from different directories than the same one as where
libGLESv1_CM.dylib is located.

BUG=angleproject:2306

Change-Id: I24ab33eb1bc805c1e64efab9a0acbfcf10480d94
Reviewed-on: https://chromium-review.googlesource.com/920926Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Lingfeng Yang <lfy@google.com>

Adjust a compile guard around posix_memalign.

Bug: angleproject:2163
Change-Id: I1d2dca24b8a2b8e549df411b1611e9fe0ac9082d
Reviewed-on: https://chromium-review.googlesource.com/920748Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

GLES1 has functions like glFrustum / glTranslatef which are baked 4x4
matrix operations. The purpose of this CL is to add those operations as
library functions in ANGLE, to make it convenient later on.

This is inspired by GLM and tested against GLM-generated numbers.

BUG=angleproject:2306

Change-Id: I3b428a115a935ee4f0d00585ad38745a38cc128c
Reviewed-on: https://chromium-review.googlesource.com/909578
Commit-Queue: Lingfeng Yang <lfy@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Need to include gtest before X11 to avoid defines conflict

BUG=angleproject:2348

Change-Id: If758c53fb5ef010506f13165186110f00c099e07
Reviewed-on: https://chromium-review.googlesource.com/919687Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>

BUG=angleproject:2188

Change-Id: Icbe78f645b693a5b2ef555feffda0f618209e867
Reviewed-on: https://chromium-review.googlesource.com/757092
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>

This makes the current clear color a bit more accessible than using
the current GL state clear color directly. It is stored in the Context
using the Vulkan clear color struct.

This also cleans up the attachment clear values in FramebufferVk and
paves the way for depth/stencil clear when support for depth/stencil
exists.

Bug: angleproject:2357
Change-Id: I0553e4447249325115625a44e9f4b1623c7cb0bc
Reviewed-on: https://chromium-review.googlesource.com/919550
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>

Passing the Renderer pointer instead of the Context pointer makes
these methods a bit easier to work with from the "EGL" sections of
the code. This is a refactoring-only change to aid the Depth/Stencil
implementation.

Bug: angleproject:2357
Change-Id: Icbcc72a1daff4edd947a21672744498781cfc064
Reviewed-on: https://chromium-review.googlesource.com/919523Reviewed-by: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Bug: angleproject:2347
Change-Id: I56edfde2dbc020d5c792cc4f107aa4b9d6b71840
Reviewed-on: https://chromium-review.googlesource.com/905895Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Flakyness noticed there:
https://ci.chromium.org/buildbot/tryserver.chromium.angle/mac_angle_rel_ng/
https://ci.chromium.org/buildbot/chromium.gpu.fyi/Mac%20FYI%20Release%20%28Intel%29/

Introduced in:
https://chromium-review.googlesource.com/c/angle/angle/+/913108

Change-Id: I9cbd76c0472d023005ded9f957b304a4a769c619
Reviewed-on: https://chromium-review.googlesource.com/919547
Commit-Queue: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

* This commit includes a JS file to execute on the spec and
generate the JSON output of all the mandatory texture caps.

Bug: angleproject:2348

Change-Id: I57e969915bdd0e7104e00a73fd3743ff1ecf0a6d
Reviewed-on: https://chromium-review.googlesource.com/911615
Commit-Queue: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:2107
BUG=angleproject:2317

Change-Id: I22260e1093dc6c09e4627c62a95ca4088c99e951
Reviewed-on: https://chromium-review.googlesource.com/678480
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This reverts commit 560bfbcb.

Reason for revert:

Appears to be causing a compile error on the ANGLE roll.
https://chromium-review.googlesource.com/c/chromium/src/+/914429
https://ci.chromium.org/p/chromium/builders/luci.chromium.try/linux_chromium_compile_dbg_ng/11598

/b/swarming/w/ir/cache/builder/linux/src/out/Debug/../../third_party/llvm-build/Release+Asserts/bin/ld.lld: error: undefined symbol: std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::compare(unsigned long, unsigned long, char const*) const
>>> referenced by StandAlone.cpp

Original change's description:
> Vulkan: Add glslang validator to build.
> 
> This binary will be used to generate internal shaders for
> clearing/blit/etc.
> 
> Bug: angleproject:2339
> Change-Id: I13db7d7a4f5a0155798c9b9a6d2972dd69a680ef
> Reviewed-on: https://chromium-review.googlesource.com/904683
> Commit-Queue: Jamie Madill <jmadill@chromium.org>
> Reviewed-by: Geoff Lang <geofflang@chromium.org>

TBR=ynovikov@chromium.org,geofflang@chromium.org,jmadill@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: angleproject:2339
Change-Id: I7bcedf27831648d4c659294d12cab50f6ef9f33f
Reviewed-on: https://chromium-review.googlesource.com/919141Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This change:
1) uses the new style ANGLE_SKIP_TEST_IF to skip tests.
2) replaces compile-time definition for OSX to skip tests by run-time
function IsOSX() to skip tests, in order to align with ANGLE_SKIP_TEST_IF.
3) fixes a couple of typos.

BUG=angleproject:2005

Change-Id: I5af77d82257536b9eb79e26afa502f5b91ff6d31
Reviewed-on: https://chromium-review.googlesource.com/915861
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Bug: angleproject:2352

Change-Id: I0ac83f3173d22a2ee8bc98d2fd7bfa1875d46b8c
Reviewed-on: https://chromium-review.googlesource.com/912358Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Luc Ferron <lucferron@chromium.org>

We are generating the caps map using various bits from the results of
vkGetPhysicalDeviceFormatProperties. This contains all the information
required to fill out "renderable", "texturable" and "filterable".

Later we'll need to read from vkGetPhysicalDeviceImageFormatProperties as
well to get the sampleCounts.

The tests for now are not very meaningful since they use the same logic
as the caps code to build the expected results, however as soon as we'll
add the hard-coded list of mandatory texture caps, the test will be a good
validator that we are not breaking anything.

We only check the optimal set of flags since it is the most restrictive
set.

isTexturable = flags contain VK_FORMAT_FEATURE_SAMPLED_IMAGE_BIT
isFilterable = flags contain VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_LINEAR_BIT
isRenderable = flags contain VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT OR
			     VK_FORMAT_FEATURE_DEPTH_STENCIL_ATTACHMENT_BIT

Bug: angleproject:2348

Change-Id: I9da0712190d2678d7e377d6fcd4ca83d23eefd38
Reviewed-on: https://chromium-review.googlesource.com/908712
Commit-Queue: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>