This patch intends to remove the support of GL_OES_geometry_shader
in ANGLE compiler.

To make the implementation simpler, currently we decide to only
support "GL_EXT_geometry_shader" as the extension string of geometry
shader in ANGLE.

This patch also updates all the related shaders in angle_unittests
into R"()" format.

BUG=angleproject:1941
TEST=angle_unittests

Change-Id: Ife9858abeedfb46b02c5c2fb1cda16fa27198511
Reviewed-on: https://chromium-review.googlesource.com/773451
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This hasn't been updated in a while, so there are many changes.
It should also include better validation for memory barriers.

Also includes updated builds for SPIRV Tools and glslang.
A few pull requests need to land before landing this in ANGLE.

This second step re-enables Vulkan and includes the updated build.

Includes a workaround for parameter_validation.h no longer being
auto-generated, and the stale file clobbering the build.

Also includes a fix for an incorrect memory barrier.

Bug: angleproject:2237
Change-Id: Iae611764870281ed6aa7b187ec0c4e44226c722a
Reviewed-on: https://chromium-review.googlesource.com/759197
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>

Symbols can be either built-ins, user-defined, nameless, or for
ANGLE's internal use. In addition we currently use TFunction symbols
that are not yet resolved - they might later resolve to either a
built-in or a user-defined function. Record this information in each
TSymbol so that TSymbol contains sufficient information for deciding
how to format symbol names in output.

The goal is to eventually replace current uses of TName with pointers
to different TSymbol objects. So far only built-ins and user-defined
symbols have associated TSymbol objects, but that will be expanded to
cover ANGLE's internal symbols as well.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I927ce023fe257cc236da82c127700f3bd72bfe96
Reviewed-on: https://chromium-review.googlesource.com/816952
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This hasn't been updated in a while, so there are many changes.
It should also include better validation for memory barriers.

Also includes updated builds for SPIRV Tools and glslang.
A few pull requests need to land before landing this in ANGLE.

First part disables Vulkan and rolls the layers. The second part will
re-enable Vulkan with the updated loader/layers build.

Bug: angleproject:2237

Change-Id: I112521541ea66b26eadeb959852418dc91be2e18
Reviewed-on: https://chromium-review.googlesource.com/805417Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This simplifies the rolling process since the build configuration was
fairly complex. It allows us to save on maintaining the two sets of
build files. The back-end is also disabled in GYP.

The back-end sources are kept in libGLES.gypi for now to keep all
libANGLE sources in the same place.

Bug: angleproject:2237, angleproject:1569
Change-Id: Ie73b40ef125cfc20da6f4ed3b33339256f1c5172
Reviewed-on: https://chromium-review.googlesource.com/805416
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>

This change is two-fold: it splits the compatible parts from the
RenderPass description, which allows for correct caching. It also
will allow the pipeline state cache to cache the compatible RenderPass
bits.

In order to do this we introduce a packed version of the RenderPass
description, which uses carefully aligned bit representations so we
can hash the descriptions easily using MurmurHash, and compare them
with memcmp.

Bug: angleproject:2163
Change-Id: I4179c0ff8762df81f29082168bd6e3056ceb1318
Reviewed-on: https://chromium-review.googlesource.com/815816
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>

When link or relink fails, if we try to install the unsuccessfully linked
program (via UseProgram) and start rendering or dispatch compute, We can
not always report INVALID_OPERATION for rendering/compute pipeline.
The result depends on the previous state: Whether a valid program has been
installed in pipeline before. If a valid program has been installed, it
should be OK to use the old executable residing in the GL state to start
rendering or dispatch compute. No error should be reported.

This change also add unit tests for unsuccessfully linked/relinked program
for rendering pipeline to avoid potential error.

If a program successfully relinks when it is in use, the program might
change from a rendering program to a compute program in theory,
or vice versa.

BUG=angleproject:2266

Change-Id: I4726112af2bc74f5beef25e35d2fcaa9f31e0768
Reviewed-on: https://chromium-review.googlesource.com/784273Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

getFramebufferAttachmentParameter returns incorrect
result for framebuffers in an inconsistent state.

BUG=angleproject:2281

Change-Id: Ifb83ecaf16c95bf1237b2c4f2684de6aa2d55c46
Reviewed-on: https://chromium-review.googlesource.com/823224
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Capturing struct members is vague In ES 3.00. But the ES 3.10
explicitly says that base-level members of struct are feasible for
transform feedback capture. This implementation fills the gap.

TEST=angle_end2end_tests:TrasnformFeedbackTest*
BUG=angleproject:2241
Change-Id: Ibdf3ae6c2b8b28952e2f7fef1363545cbccad389
Reviewed-on: https://chromium-review.googlesource.com/768613
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Instanced multiview is fully implemented and performs much better than
broadcasting draw calls on the CPU. There's no need to maintain
translating ViewID_OVR to a uniform.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: If3a8fa573f37b7926c052aecfcd4271f266751dc
Reviewed-on: https://chromium-review.googlesource.com/819417Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

dEQP-GLES31.functional.shaders.builtin_functions.precision*compute* cases were
fixed by https://chromium-review.googlesource.com/c/angle/angle/+/792951

BUG=angleproject:1951,angleproject:1663
TEST=dEQP-GLES31.functional.shaders.builtin_functions.precision*compute*
     dEQP-GLES31.functional.draw_indirect.compute_interop.*
     dEQP-GLES31.functional.layout_binding.image*

Change-Id: I25a9272df8c66e1e5279de54a091b3077cd59b22
Reviewed-on: https://chromium-review.googlesource.com/822606Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

Previously the index variable was missing a precision. This may have
been behind loop-based init failing on some Android platforms.

BUG=chromium:735497
TEST=angle_unittests

Change-Id: I0307891dfb2edf6c52efd5b495f602b380263d65
Reviewed-on: https://chromium-review.googlesource.com/822413Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Now temporary ids are always only created for a specific temporary
variable.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: Icbd369695abc166ef399bed9ae11a3669f1e7228
Reviewed-on: https://chromium-review.googlesource.com/816951Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Includes a fix for creating pbuffers with <buftype> EGL_D3D_TEXTURE
with EGL_WIDTH and EGL_HEIGHT attributes.

BUG=angleproject:1649
TBR=geofflang@chromium.org

Change-Id: Id2974b8fab02c3218febfac708b9b034e65cbc53
Reviewed-on: https://chromium-review.googlesource.com/823248Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

When creating the pbuffer, Chromium specifies EGL_WIDTH and EGL_HEIGHT
attributes that are unnecessary because they are extracted from the
D3D11 texture passed as <buffer> to eglCreatePbufferFromClientBuffer.

This is a regression test for crbug.com/794086 where a change to
ValidateCreatePbufferFromClientBuffer made EGL_WIDTH and EGL_HEIGHT
invalid for <buftype> EGL_D3D_TEXTURE and caused Chromium to fail
creating the pbuffer, causing all black rendering.

BUG=chromium:794086

Change-Id: I262fd0991e0f46f255aeac25528ddb4a62fa1309
Reviewed-on: https://chromium-review.googlesource.com/822296Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

BUG=angleproject:2270
TEST=dEQP-GLES31.functional.state_query.integer.dispatch_indirect_buffer_binding_*

Change-Id: I2c286c219c5c849d7ba417069f53f2d0fae6abf1
Reviewed-on: https://chromium-review.googlesource.com/799990
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Explain how to use GN and say not to use GYP.

BUG=angleproject:1569

Change-Id: I972126dced28fa7a70eb301b500f172376a569c1
Reviewed-on: https://chromium-review.googlesource.com/775858Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This reverts commit c7abc080.

Reason for revert: Might have broken Chromium Win10 composition due to validation changes.

Original change's description:
> Implement EGL_ANGLE_iosurface_client_buffer
> 
> BUG=angleproject:1649
> 
> Change-Id: I1e72c31d7c9497ad14039a8d3fb97317ab193cb2
> Reviewed-on: https://chromium-review.googlesource.com/559107
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Geoff Lang <geofflang@chromium.org>
> Commit-Queue: Corentin Wallez <cwallez@chromium.org>

TBR=geofflang@chromium.org,cwallez@chromium.org

Change-Id: I605b710b6d76056d6276b09822cd6ddca277bfd0
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: angleproject:1649
Reviewed-on: https://chromium-review.googlesource.com/822172Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

In ESSL 3.10 spec, there are below descriptions:
1. Any uniform or shader storage block declared without a binding qualifier
is initially assigned to block binding point zero.
2. If the binding qualifier is used with a uniform block or shader storage
block instanced as an array, the first element of the array takes the
specified block binding and each subsequent element takes the next
consecutive binding point.

So explicitly specifying the binding to zero is different with not declaring
a binding qualifier for a block instance array.

For example:
1)    layout(shared, binding = 0) buffer blockName {
          uint data;
      } instanceName[3];

2)    layout(shared) buffer blockName {
          uint data;
      } instanceName[3];
In 1), the binding point of each element instance is 0, 1, 2.
In 2), the binding point of each element instance is 0, 0, 0.

BUG=angleproject:1951
TEST=dEQP-GLES31.functional.ssbo.layout.*

Change-Id: If770d6e1fd8e13d2cdc762bab289772076258e4c
Reviewed-on: https://chromium-review.googlesource.com/816340Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

The exponent should be rounded prior to casting it to an integer.

Also if the exponent has a significant fractional part the expression
should not be turned into a multiplication. The previous code failed
to check this correctly if the exponent's fractional part was greater
than 0.5.

The test case is expanded to cover the previously failing cases.

BUG=chromium:793115
TEST=angle_end2end_tests

Change-Id: Ic72cd6ddc7f3d2495f7c87a3e3cfac5791445e72
Reviewed-on: https://chromium-review.googlesource.com/817299Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:1649

Change-Id: I1e72c31d7c9497ad14039a8d3fb97317ab193cb2
Reviewed-on: https://chromium-review.googlesource.com/559107Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

This dirty bit isn't getting set somewhere where it should be, so work around this by
just enabling the dirty bit always. The bit was added here:
https://chromium-review.googlesource.com/c/angle/angle/+/659228
There will be a followup to re-enable this dirty bit once the correctness has been fixed.

Test: https://github.com/KhronosGroup/WebGL/pull/2559
Bug: chromium:792966
Change-Id: I473a60b39eff70e59ab55ff7b74f06fdb0db1305
Reviewed-on: https://chromium-review.googlesource.com/818178
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>

BUG=angleproject:2279

Change-Id: I7e7ef359fa3021aa10585653b2fec169f5d4a51f
Reviewed-on: https://chromium-review.googlesource.com/794536Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

There's still an exception for changing the names of structures, but
otherwise the data stored in the TSymbol base class is never changed.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I5b3f44cd365320ad09b46d2cfa3654a7d3f4bbc3
Reviewed-on: https://chromium-review.googlesource.com/806556Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Fixes compilation on some versions of GCC and probably Clang.

Follow-up to http://crrev.com/c/786317

Bug: angleproject:1432
Change-Id: I3fc3ad0f65492f9543eb27fcdce6ca29a9ad06e5
Reviewed-on: https://chromium-review.googlesource.com/812220Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>

BUG=angleproject:1649

Change-Id: Ie613ae835ea3e7c590f74429bdd36f7a42045131
Reviewed-on: https://chromium-review.googlesource.com/811905
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Merge TInterfaceBlock with TInterfaceBlockName, so that there are no
duplicate data structures for interface blocks. This is similar to the
refactoring that was already done to structs.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I67d2af6ccbe5344bddf9c99030d118fe532fbbd8
Reviewed-on: https://chromium-review.googlesource.com/805819Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:2265
TEST=dEQP-GLES31.functional.shaders.builtin_var.compute.*
     angle_end2end_test.ShaderStorageBufferTest31
                       .MultiStorageBuffersForMultiPrograms

Change-Id: Icc3df122602951a2328003c10a76696ab4c9f0d8
Reviewed-on: https://chromium-review.googlesource.com/792951
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Instead of storing instance names as part of TInterfaceBlock, store
instance names only in interface block instance symbols. Wherever the
instance name is needed it can be fetched from the instance symbol.

BUG=angleproject:2267
TEST=angle_end2end_tests

Change-Id: Ia265e4db7901eebec57c9c3769d84c17651a35ba
Reviewed-on: https://chromium-review.googlesource.com/803221Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Includes angle::BitSetT changes from jmadill@chromium.org

BUG=angleproject:2169

Change-Id: I9f896613f5c6cdc91281cb9a00134f67291870d9
Reviewed-on: https://chromium-review.googlesource.com/804177Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

The OpenGL backend on Windows uses D3D11 to implement several interop
extensions.  Without this change, there are compile failures when the
D3D11 backend is disabled.

BUG=angleproject:2276

Change-Id: I69ad524ca84aa0aa399cfc0b601315f3ee65ed16
Reviewed-on: https://chromium-review.googlesource.com/809186Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This makes it relatively simple to sample from a D3D11Texture of
arbitrary format.

From: https://bugzilla.mozilla.org/show_bug.cgi?id=1322746

BUG=angleproject:2233
TEST=angle_end2end_tests

Change-Id: I10cd3043b5cb0c5d36dd613467ba6c0ceadf41af
Reviewed-on: https://chromium-review.googlesource.com/758042
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Replaces TCache with (static generation + static/dynamic lookups) of
TType instances, using compile-time template and constexpr magic.

Work started by jmadill here: https://crrev.com/c/776280
With more contributions from jmadill here: https://crrev.com/c/801494

Bug: angleproject:1432
Change-Id: I07181543f8fee4b2606cdd2d0738351e83d4ce57
Reviewed-on: https://chromium-review.googlesource.com/786317
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:2188

Change-Id: I5bfcc038c887dde0770564d103eb3cb234b248c9
Reviewed-on: https://chromium-review.googlesource.com/794100Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

getFramebufferAttachmentParameter returns incorrect
result for framebuffers in an inconsistent state.

BUG=angleproject:2259

Change-Id: I76fa99f1b8847c30469d344bd93dedd9cf6657bf
Reviewed-on: https://chromium-review.googlesource.com/798318Reviewed-by: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

Ensure that a warning is generated if the shader tries to set a global
layout qualifier. Since a num_views layout qualifier is the only valid
global layout qualifier in GLSL ES 1.00, it's sufficient that
checkCanUseExtension() that generates the warning is called for
"num_views" specifically. Parsing "layout" or "in" storage qualifier
may use the simpler isExtensionEnabled() check that doesn't generate a
warning.

BUG=angleproject:2238
TEST=angle_unittests

Change-Id: I19caff7be9cb4f53c581b5f5526b7cade08469d6
Reviewed-on: https://chromium-review.googlesource.com/803577Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Individual block member row_major/column_major layout qualifiers may
override the qualifiers set on the block. During parsing, this was
already being handled correctly, so that the qualifier is resolved for
each block member and recorded for each TField / InterfaceBlockField.

Now we always write the qualifiers on a per-member granularity to the
output GLSL shaders, so that the native driver gets the correct
per-member qualifiers. This replaces earlier behavior where the matrix
qualifiers were only written per-block.

Also only use qualifiers from individual members in block layout.

Since the block-level qualifier information is no longer used after
parsing, it is no longer kept in the AST. A dummy value is still set
to the InterfaceBlock structs exposed through the ShaderVars
interface, since that has existing usage in Chromium that needs to be
removed before the field can be removed.

Some AMD OpenGL drivers don't seem to handle matrix layout qualifiers
correctly, so most of the added tests need to be skipped for AMD GL.
On NVIDIA and Intel the tests pass.

BUG=angleproject:2271
TEST=angle_unittests, angle_end2end_tests,
     dEQP-GLES31.functional.program_interface_query.uniform.matrix*

Change-Id: I1baa7a633bc2da548743c2190cb72db491b5227a
Reviewed-on: https://chromium-review.googlesource.com/800174Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:2274
BUG=769026

Change-Id: I8128a438a0831ebc4d6693085a41c41182d259c7
Reviewed-on: https://chromium-review.googlesource.com/803854Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2188

Change-Id: I7456692e779107514ab87bfb1a0ab91178c9fc3a
Reviewed-on: https://chromium-review.googlesource.com/797356Reviewed-by: Jamie Madill <jmadill@chromium.org>

This removes the dummy type that was attached to struct declarators
while parsing. This makes TParseContext::addStructDeclaratorList in
particular simpler to understand.

The new TDeclarator data type is the parsed representation of the
struct_declarator grammar rule. It is completely immutable. The name
and location stored in TField can also be qualified as constant now.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I2834f87fc0eee0bdb7673ef495a55fb463023c55
Reviewed-on: https://chromium-review.googlesource.com/797033
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>