The Vulkan GLSL translator back-end will handle validating and
translating our WebGL/ESSL shaders into Vulkan-specific GLSL.

glslang (the Vulkan one) accepts both GLSL and GLSL ES shaders
as inputs, and both the desktop and ESSL back-ends give
incompleteness warnings when used. For now, use the desktop GL
450 as a target for Vulkan GLSL.

The Vulkan-specific changes are currently only to add locations
to every vertex input and fragment output.

BUG=angleproject:1575

Change-Id: I7c3f32f522e9d18e5f8618eb7927336bf4fbdcf2
Reviewed-on: https://chromium-review.googlesource.com/412266Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Failure was seen on bots since the test was introduced.

BUG=chromium:686105
BUG=angleproject:1730

Change-Id: I60293f17bf5e2498cbfb61f86468c218d58df68d
Reviewed-on: https://chromium-review.googlesource.com/434080
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This makes function call node creation code simpler and more type
safe. It also prepares for further simplification by removing usage of
TFunction in places where the arguments node is sufficient.

BUG=angleproject:1490
TEST=angle_unittests

Change-Id: I75d9e059bb32c475487f0be24e40ac0d78012d86
Reviewed-on: https://chromium-review.googlesource.com/433217Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This adds built-ins found in ESSL 3.10 section 8.8 Integer functions.

This includes constant folding support for functions that may be
constant folded, and support for both GLSL and HLSL output. In HLSL
several of the functions need to be emulated.

The precision qualification for the return value of some of these
functions is determined by special rules, that are now part of type
promotion for TIntermUnary nodes and determining the type of
TIntermAggregate nodes.

BUG=angleproject:1730
TEST=angle_unittests
TEST=dEQP-GLES31.functional.shaders.builtin_functions.integer.*

Change-Id: Ib0056c17671c42b6496c2f0ef059b99f8f25c122
Reviewed-on: https://chromium-review.googlesource.com/431310
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

IDCompositionSurfaces can't be bound as SRVs, so don't try to create
SRVs for them.

Also, OMSetRenderTargets must have NumViews <= 1 if an
IDCompositionSurface is being bound. MRT doesn't work with them, and just
having the remaining elements be null isn't enough.

BUG=678800

Change-Id: I76b28de7cbda772bff286eae2b83b70c9dcd2232
Reviewed-on: https://chromium-review.googlesource.com/431134Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: John Bauman <jbauman@chromium.org>

This is necessary to initialize vertex arrays.

BUG=angleproject:1579

Change-Id: Ic5a232d5cdfaa75b41241901de842e62ff3b173f
Reviewed-on: https://chromium-review.googlesource.com/406645
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This extension is mandatory for EXT_map_buffer_range support. We can
emulate it using GLES 3.0 core map functionality.

BUG=angleproject:1751

Change-Id: Idba09ce7276603d5556039f4a49aa0b87cae22aa
Reviewed-on: https://chromium-review.googlesource.com/431826Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

Removing one usage of FormatString() and its static buffer.
And preparation for Platform logging.

Fix incorrect enabling of ERR() calls in UNIMPLEMENTED() and
UNREACHABLE(), resulting in increased code size and
<iostream> adding 5 static initializers to chrome because of
cerr referenced in statically linked translator.

BUG=angleproject:1660

Change-Id: I7caa18036118d532e0544f75278602559172ae04
Reviewed-on: https://chromium-review.googlesource.com/431457Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

New entry points are needed to support built-ins with more parameters.

Also, now that ops that are not function calls don't use the
TIntermAggregate class any more, it's easier to exclude nodes that are
not candidates for built-in emulation using a simple blacklist rather
than to use a whitelist.

Also includes function name style cleanup in BuiltInFunctionEmulator.

This will make it possible to add necessary emulation for built-ins
from ESSL 3.10.

BUG=angleproject:1730
TEST=angle_unittests

Change-Id: If267fc68f5cb9b2ee6703cbcbbe4d157da44a7e0
Reviewed-on: https://chromium-review.googlesource.com/431297
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Built-in function parameter qualifiers are stored in the symbol table.
Some AST traversers need the qualifier information for ops to
determine whether a node is being written to. Add an utility function
that maps a TIntermAggregate node to a symbol table entry, so that the
traversers can get to this information in a convenient way.

This will be necessary for adding more built-ins that have out
parameters from ESSL 3.10.

BUG=angleproject:1730
TEST=angle_unittests

Change-Id: I4bc622d70b2326a04cc858ff1258c22320c590dc
Reviewed-on: https://chromium-review.googlesource.com/431109
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:1679
TEST=dEQP-GLES31.functional.state_query.texture_level.texture_2d_multisample.*

Change-Id: Ic31f079c0c999d695eb695413271bd0ad10d05ba
Reviewed-on: https://chromium-review.googlesource.com/429930Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

BUG=681557

Change-Id: I8fb4e50d241e3519b27d57a507d92cc3c15877ef
Reviewed-on: https://chromium-review.googlesource.com/430877
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>

The division between 2- and 3-parameter built-ins is superfluous and
can be removed. Also folding support for ESSL 3.00 is complete, so the
comments about needing to add folding support for more functions can
be removed.

BUG=angleproject:1730
TEST=angle_unittests

Change-Id: I5ca93a957a98a7740eca506e44af48e7b4b83bad
Reviewed-on: https://chromium-review.googlesource.com/431108Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

The special names for built-ins used in intermediate output are kept
only where they add some significant value, like clearly
disambiguating between component-wise and non-component-wise ops.
Otherwise intermediate output now relies on GetOperatorString to give
names for ops.

This will make it easier to add new built-in functions.

This also fixes intermediate output for TIntermSwizzle, dFdx, dFdy and
fwidth.

BUG=angleproject:1730
TEST=angle_unittests

Change-Id: Ifa06b886ad8e24b0820513adae8decd60d80a0e7
Reviewed-on: https://chromium-review.googlesource.com/431032Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This will make it easier to add more built-in functions.

BUG=angleproject:1730
TEST=angle_unittests

Change-Id: I5219a83e964b6ee15c690e108313960a873dd8e5
Reviewed-on: https://chromium-review.googlesource.com/431031Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

AST traversers tend to sometimes call traverse() functions manually
during PreVisit. Change TIntermTraverser so that even if this happens,
all the nodes are automatically added to the traversal path, instead
of having to add them manually in each individual AST traverser.

This also makes calling getParentNode() return the correct node during
InVisit.

This does cause the same node being added to the traversal path twice
in some cases, where nodes are repeatedly traversed, like in
OutputHLSL, but this should not have adverse side effects. The more
common case is that the traverse() function is called on the children
of the node being currently traversed.

This fixes a bug in OVR_multiview validation, which did not previously
call incrementDepth and decrementDepth when it should have.

BUG=angleproject:1725
TEST=angle_unittests, angle_end2end_tests

Change-Id: I6ae762eef760509ebe853eefa37dac28c16e7a9b
Reviewed-on: https://chromium-review.googlesource.com/430732
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Use baseVertex as the parameter of drawLineLoop and drawTriangleFan. The
old name is not clear for its usage.

BUG=angleproject:1724

Change-Id: I529a157f055eba9d62952093f37eabb8398697db
Reviewed-on: https://chromium-review.googlesource.com/430255
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Certain use patterns could trigger a deallocation of the system memory
storage as it was being initialized. Fix this by resetting the idle
counter before we enter into the internal update which would trigger
the deallocation check.

BUG=chromium:682020

Change-Id: Ic3dac78ffa778cbaf103820a23eea009ce439d5c
Reviewed-on: https://chromium-review.googlesource.com/430304Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This is a reland of 2cd9d7e0.

BUG=angleproject:1442
TEST=angle_end2end_tests

Change-Id: I5be0032b97617c31cdd4c66a823e8eb3b518867a
Reviewed-on: https://chromium-review.googlesource.com/430199
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Instead of just validating definitions of main(), do the validation
for all function headers for functions named "main", including headers
in prototype declarations.

BUG=angleproject:1712
TEST=angle_unittests

Change-Id: Ia34a2a756e1cc27b241b27e8c01c6ef09bffba71
Reviewed-on: https://chromium-review.googlesource.com/430010Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:1707
BUG=angleproject:798

Change-Id: I34fefa9f9bbd42ef05f222c8caf856a22cf206a3
Reviewed-on: https://chromium-review.googlesource.com/428293
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

TIntermFunctionDefinition nodes now have a TIntermFunctionPrototype
child that stores the function signature, instead of having a separate
type and an aggregate child that stores the parameters.

This makes parsing functions simpler, and paves the way for further
simplifications of function parsing, like reducing conversions between
symbol table structures and AST structures.

TIntermAggregate is now only used for function calls.

BUG=angleproject:1490
TEST=angle_unittests, angle_end2end_tests

Change-Id: Ib56a77b5ef5123b142963a18499690bf37fed987
Reviewed-on: https://chromium-review.googlesource.com/427945Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:1639

Change-Id: I42da2acdb7c99116c4418a2f71d65d72d328d641
Reviewed-on: https://chromium-review.googlesource.com/428572
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:1319

Change-Id: I0668527a338a2f10ca74b43f2a8bd82534e732c0
Reviewed-on: https://chromium-review.googlesource.com/370805
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Update CGL backend to use new EGL types.

BUG=angleproject:1707

Change-Id: I165e81a758cad0a8036aef68c44a57bcc61e982d
Reviewed-on: https://chromium-review.googlesource.com/428292Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

That also fixes the build with Clang ToT compiler.

BUG=chromium:681912

Change-Id: I1449ee0f1f3f031d64af1a1f64f43808d2a8a1b1
Reviewed-on: https://chromium-review.googlesource.com/428903Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

This ensures that pointers to Macros that are removed from the macro
set stay valid. Pointers to undef'd macros may need to be referred to
if reenabling the macros has been deferred.

BUG=chromium:681324
TEST=angle_unittests

Change-Id: Ibbbabbcbd6b0a84254cda717ae63712e6d404ebd
Reviewed-on: https://chromium-review.googlesource.com/427948Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Function prototypes now have their own class TIntermFunctionPrototype.
It's only used for prototypes, not function parameter lists.

TIntermAggregate is still used for parameter lists and function calls.

BUGS=angleproject:1490
TEST=angle_unittests

Change-Id: I6e246ad00a29c2335bd2ab7f61cf73fe463b74bb
Reviewed-on: https://chromium-review.googlesource.com/427944Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Implement TexStorage2DMultisample and getMultisamplefv entry point.
Also modify sample state for Textures and Framebuffers.

BUG=angleproject:1590
TEST=angle_unittests
TEST=angle_end2end_tests
TEST=dEQP-GLES31.functional.texture.multisample.samples_*.sample_position
TEST=dEQP-GLES31.functional.texture.multisample.samples_*.use_texture_color_2d
TEST=dEQP-GLES31.functional.texture.multisample.samples_*.use_texture_depth_2d
TEST=dEQP-GLES31.functional.texture.multisample.negative.fbo_attach_different_sample_count_tex_tex
TEST=dEQP-GLES31.functional.texture.multisample.negative.fbo_attach_different_sample_count_tex_rbo
TEST=dEQP-GLES31.functional.texture.multisample.negative.fbo_attach_non_zero_level
TEST=dEQP-GLES31.functional.texture.multisample.negative.texture_high_sample_count
TEST=dEQP-GLES31.functional.texture.multisample.negative.texture_zero_sample_count
TEST=dEQP-GLES31.functional.shaders.builtin_functions.texture_size.samples_1_texture_2d
TEST=dEQP-GLES31.functional.shaders.builtin_functions.texture_size.samples_4_texture_2d

Change-Id: I8fa7bd4e73b95745858a3e16b1b92004b4a18712
Reviewed-on: https://chromium-review.googlesource.com/414309
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:1702
TESTCASE=angle_end2end_tests

Change-Id: I45fe21bc14310b9c873e83004a8ac8766865fbb9
Reviewed-on: https://chromium-review.googlesource.com/428690Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

BUG=angleproject:1706
TEST=Win Intel HD 530 Debug bot on GPU FYI waterfall

Change-Id: I9037e777f42654e7030bcf197e81d0c118bb792d
Reviewed-on: https://chromium-review.googlesource.com/428221Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Zhenyao Mo <zmo@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

This enables the simple operations clear test on Vulkan. The current
implementation is very synchronous - it will block and finish the
current command buffer if there is any possibility of a race.

BUG=angleproject:1319

Change-Id: If01fe9a19ed6f539639a38786193d3626164cada
Reviewed-on: https://chromium-review.googlesource.com/367754
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This saves a few re-computations of the same stuff.

BUG=angleproject:1671

Change-Id: I28f955cd880366a86c0bb22285a119e97661e2cb
Reviewed-on: https://chromium-review.googlesource.com/427326
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This adds basic validation for catching CopyTex{Sub}Image calls
whose source and destination textures overlap. It does not yet
implement full support for ES3 types (3D textures, array textures).

BUG=angleproject:1685

Change-Id: I83e7b1998df5575057fed8f99f7ee9970fb38df0
Reviewed-on: https://chromium-review.googlesource.com/425491
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

The GLES working group has decided to amend the spec so that
implementations are not allowed to generate compile errors on
undefined values detected at compile time. Change the remaining
folding errors to warnings to follow the newly clarified rules.

The end2end_tests covering this are removed, since they're
redundant with the more efficient unit test.

BUG=angleproject:1703
TEST=angle_unittests

Change-Id: I97d2fd532dbe5733581bdc4aa40a5d7d3734fc0d
Reviewed-on: https://chromium-review.googlesource.com/427799Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:1679
TEST=dEQP-GLES31.functional.state_query.texture_level.*

Change-Id: I36cc7406199fc0c3c1585ad48f010d7dba5fe9e4
Reviewed-on: https://chromium-review.googlesource.com/414250
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

They have consolidated to one helper script generator. Simplifies the
GN build. This also re-enables the Vulkan back-end after the roll.

BUG=angleproject:1319

Change-Id: Ie98568ae5d1dc46932ea8d698809561da7591836
Reviewed-on: https://chromium-review.googlesource.com/427307Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

The types are organized as in the ESSL 3.10 spec.

BUG=angleproject:1681

Change-Id: If8e0ab2c604fcf9b61d3d89719e95854d494231c
Reviewed-on: https://chromium-review.googlesource.com/427843Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This fixes cases where a matrix is indexed and then the resulting
vector is indexed in the same expression inside an l-value.

BUG=angleproject:1672
TEST=angle_end2end_tests

Change-Id: Ia0593d75da67e0aa582003e1c381f2a1c89f948c
Reviewed-on: https://chromium-review.googlesource.com/427938Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Failing Chromium static initializers check:

FAILED linux-release-64/sizes/chrome-si/initializers: actual 8, expected 7, better lower

Possibly due to the static initializer for std::array for
the log severity types. We should change it to POD.

BUG=angleproject:1660

This reverts commit afcc41ce.

Change-Id: Ifb362a4af78542608397c7a0b19e6afe076f2cf3
Reviewed-on: https://chromium-review.googlesource.com/427235Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>