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>

Improves ValidateFragmentShaderColorBufferTypeMatch by storing input and
output types into a bitmask for quick comparison when validation is
needed. This shows a 2% improvement to glDrawElements for the aquarium
workload.

BUG=angleproject:2203
Change-Id: Iade2ecf28383164e370b48442f01fba6c0962fba
Reviewed-on: https://chromium-review.googlesource.com/775019
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This patch intends to implement all geometry shader related
resource queries on OpenGL back-ends.

This patch also fixes a memory leak by releasing the geometry
shader compiler handle in the destructor of the Compiler.

BUG=angleproject:1941, angleproject:2261
TEST=angle_end2end_tests

Change-Id: Ieb69c162d2fc6c6550e145d1ec7948c3d36d4d15
Reviewed-on: https://chromium-review.googlesource.com/784552Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

BUG=angleproject:1729
TEST=dEQP-GLES31.functional.ssbo.layout.*
     dEQP-GLES31.functional.compute.basic.atomic_counter*

Change-Id: Ic78c0f089fd539c0b1064e8405d63505456dbc01
Reviewed-on: https://chromium-review.googlesource.com/777958
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This also adds a test for updating a Texture that is in-use. This will
ensure our Texture updates occur at the right time when we're
implementing command re-ordering.

Bug: angleproject:2264
Bug: angleproject:2200
Change-Id: Id6040d7238eca031e3cc7b27564d8ea815bf3d73
Reviewed-on: https://chromium-review.googlesource.com/801031
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>

BUG=angleproject:1987

Change-Id: I189e1606bd966eb369e8192a6866c8e90810e937
Reviewed-on: https://chromium-review.googlesource.com/802956
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This change refactors two style issues to make it be consistent.
1) This CL uses "using" to replace "typedef" for all angle::BitSet<...>.
2) This CL uses EXPECT_GL_TRUE/FALSE to replace EXPECT_EQ for bool comparison.

BUG=angleproject:2005

Change-Id: I4afad92313ea2457bbfedf80f917a5873d7f29ee
Reviewed-on: https://chromium-review.googlesource.com/795871
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Instead of storing struct symbols as TVariable objects, store them
as TStructure objects. This way struct type symbols don't need to
store bogus data that's associated with arbitrary types, and on the
other hand the name and unique id of struct types are only stored in
a single place. This change is a refactoring with no effect on
generated output.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: I173793e0cc77a890cdac6868d72d9f275ac9461a
Reviewed-on: https://chromium-review.googlesource.com/793814
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This guarantees identical compilation results on different
compilations using the same compiler instance, guards against
overflow, and is useful as a building block for tracking more symbol
information in the symbol table.

BUG=angleproject:2267
TEST=angle_unittests

Change-Id: Ib5a7cec2fff6712ead969d935d238d28a87fd4a7
Reviewed-on: https://chromium-review.googlesource.com/796795Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

We can actually store a pointer to the base ResourceVk instead of
BufferVk for updating serials. This will work a little nicer with
streaming vertex data, which won't have a BufferVk but will have an
accessible ResourceVk pointer.

Also add an element array resource pointer for serial update. This was
missing and could lead to incorrect behaviour. Also change the types
of the caches from std::vector to gl::AttribArray, which is a
std::array.

Bug: angleproject:2264
Change-Id: Ibd79b7676b5dbc3875ae9d110be477d228e01c5c
Reviewed-on: https://chromium-review.googlesource.com/798170
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>