The patch adds validation for the ANGLE_multiview end-points
and propagates the calls to the unimplemented stubs in Context.

The patch also removes the
glFramebufferTextureMultiviewSideBySideRobustANGLE end-point
because the size of the viewport offsets buffer can trivially
be computed from the number of views.

BUG=angleproject:2062

Change-Id: I9a10bc00c19825e586d3df2750fabea4daf5ef8f
Reviewed-on: https://chromium-review.googlesource.com/573861
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Debug layers seem to be a universal thing among functional back-ends.
D3D, OpenGL and Vulkan all need some kind of controls for debugging,
so it seems to make sense to make this control part of the base
extension.

Default the extension to EGL_DONT_CARE, which allows the back-end to
have a lot of flexibility in terms of implementation.

Also enable the extension in the D3D11 and OpenGL back-ends, and set
the extension to enabled for angle_end2end_tests.

Remove EGLVulkanEXTTest since it no longer tests anything not tested
in the base ANGLETest class.

BUG=angleproject:2086

Change-Id: I52d8170effd1846b9afbe6e4052c699fe5cb0de8
Reviewed-on: https://chromium-review.googlesource.com/578369
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>

This consolidates all the state changes for shaders into
StateManager11.

BUG=angleproject:2052

Change-Id: I64dc3af5b0f1459442369e09f93a9ca8ce3232b3
Reviewed-on: https://chromium-review.googlesource.com/531796Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:2045

Change-Id: Ie1deac50a534ee748518d9ec5e6f749f3c78b53d
Reviewed-on: https://chromium-review.googlesource.com/531795Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Intead of checking a series of bools and special variables, organize
the state application into a switch with internal dirty bits. This
should be faster for no-op, and makes it clear where we have to
further optimize the state update to pre-compute certain values.

BUG=angleproject:1156

Change-Id: I8eca8716340499085afa170ff45f7788e84fecab
Reviewed-on: https://chromium-review.googlesource.com/531794
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This makes the naming more consistent with the rest of the EGL
extensions.

BUG=angleproject:2086

Change-Id: If08e7a550d6b99fb5a3a2138b0c94afc82b2b417
Reviewed-on: https://chromium-review.googlesource.com/578368Reviewed-by: Geoff Lang <geofflang@chromium.org>

We need this in a few places for handling resource init.
Centralize this in the context so we don't have to recreate
and re-fill a large zero buffer.

BUG=angleproject:2107

Change-Id: Icf9ce417e7ee3498f03e47741dfff89e81b49519
Reviewed-on: https://chromium-review.googlesource.com/576057Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

NVIDIA OpenGL drivers have a bug where the point size range is being
reported incorrectly - it appears the core GL driver incorrectly gives
the range for smooth points, when it should be giving the range for
aliased points. Clamp the actual point size to the maximum point size
reported from the API so that the GLES spec is followed.

The same workaround seems to be necessary also on Android. The issue
was revealed by the trybots, and has not been fully diagnosed though.

The newly added test fails on AMD OpenGL.

As a part of this change, the existing tests in PointSpritesTest are
refactored to use gl_raii.

BUG=chromium:740560
TEST=angle_end2end_tests

Change-Id: Ic4a66c9ea16f5ae76beb3bb6577716d10c3b226e
Reviewed-on: https://chromium-review.googlesource.com/574598Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

In HLSL output, samplers are never passed to functions as arrays, but
rather sampler array arguments are expanded into single sampler and/or
texture arguments. This applies also when the samplers were inside
arrays of structs in the original source.

BUG=angleproject:2103
TEST=angle_end2end_tests

Change-Id: Ib1fcba0c0ab3da592d15272eb56a03c3e536f349
Reviewed-on: https://chromium-review.googlesource.com/576041Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Add API entry and validation checks(GLES 3.1 section 7.3).
Add the first 2 interfaces(PROGRAM_INPUT and PROGRAM_OUTPUT) implementation.

BUG=angleproject:1920
TEST=angle_end2end_tests:ProgramInterfaceTestES31.*

Change-Id: I5128cda43b0d9176c910b036cdc76bf37757670e
Reviewed-on: https://chromium-review.googlesource.com/474212
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Add GL_TEXTURE_BINDING_2D_MULTISAMPLE option to State.cpp to
query binding id of GL_TEXTURE_2D_MULTISAMPLE.

BUG=angleproject:1590
TEST=angle_deqp_gles31_tests.exe --deqp-case=dEQP-GLES31.functional.state_query.integer.texture_binding_2d_multisample_*

Change-Id: I86b24f00ac4e75eb0e2986f7cf2eb108aae14674
Reviewed-on: https://chromium-review.googlesource.com/561196
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This makes unique id counting thread-safe.

BUG=angleproject:624
TEST=angle_unittests

Change-Id: Ie0f2c7e574470b39750d37d2181c790bc874b275
Reviewed-on: https://chromium-review.googlesource.com/570419
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

The patch extends glGetIntegerv and glGetFramebufferAttachmentParameteriv
logic to handle the new tokens from the ANGLE_multiview extension.

BUG=angleproject:2062
TEST=angle_end2end_tests

Change-Id: Ide145279cd7b58cd03502458d7d3a1a0f5e9e86d
Reviewed-on: https://chromium-review.googlesource.com/573780Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This enum is queryable in ES3 or with the GL_OES_standard_derivatives
extension.

BUG=2110

Change-Id: I688777bcc65468d796333a24223d24cc66170788
Reviewed-on: https://chromium-review.googlesource.com/576156Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This will make iterating over an internal set of dirty bits simpler.

This also reorganizes the framebuffer invalidation logic a  bit,
including how the sample count is pulled from the Framebuffer.

BUG=angleproject:1156

Change-Id: I79dbcd11704ab52568c587d836af9c1bff1d2d1f
Reviewed-on: https://chromium-review.googlesource.com/529708
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Previously, the entire original shader would end up being written to a single
line, not very readable.

Change-Id: I8cdfd498bb47395da2bd11c3d3b2eecf266c914e
Reviewed-on: https://chromium-review.googlesource.com/576064Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Relying on the AST conforming to known limitations makes the code for
recording referenced varyings easier to understand.

BUG=angleproject:2104
TEST=angle_end2end_tests

Change-Id: Icdcd7602f6ed54fa439f989bf256e261627d11f5
Reviewed-on: https://chromium-review.googlesource.com/568018Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This patch intends to implement Vertex Attrib Binding on OpenGL
back-ends:

1. Add supports for updating vertex attributes by Vertex Attrib
Binding APIs.
2. Refactor the process of updating vertex attribtues in class
VertexArray to make it easier to implement this feature.

BUG=angleproject:1593
TEST=dEQP-GLES31.functional.vertex_attribute_binding.*

Change-Id: I800e61518c552b94b84c415895ad31668b0a84b2
Reviewed-on: https://chromium-review.googlesource.com/510251
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Previously, the broadcast step would not get run in case the main()
function returned before reaching its end. Now the broadcast step is
put in a separate function that wraps main() if needed, so that it
gets run even if the main() function in the original shader source
returns in the middle.

DrawBuffersTest is refactored to use ANGLETest::drawQuad() instead of
calling glDrawArrays directly.

BUG=angleproject:2109
TEST=WebGL conformance tests, angle_end2end_tests

Change-Id: Id5f05094e816df03bc9c8ca62b60de914072682c
Reviewed-on: https://chromium-review.googlesource.com/574597Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=

Change-Id: I447900488559622108c0da12a352c88218f9ddc6
Reviewed-on: https://chromium-review.googlesource.com/575201
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

1. src/common/platform.h updated to define ANGLE_PLATFORM_POSIX on Haiku.
2. include/EGL/eglplatform.h updated to add stubs typedefs for
platform-specific primitives for Haiku.

Change-Id: I28775e909ad9cabec1c474ff4fe0a241eb05d6a1
Reviewed-on: https://chromium-review.googlesource.com/573022
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

The patch adds the new end-points and tokens introduced
by ANGLE_multiview without implementing them.

BUG=angleproject:2062

Change-Id: I9be175263ab54b4f6d7537f05505b87ad763ee2d
Reviewed-on: https://chromium-review.googlesource.com/570051Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

When setting parameters by TexParameter{if} for TEXTURE_2D_MULTISAMPLE,
an INVALID_ENUM error is generated if target is TEXTURE_2D_MULTISAMPLE,
and pname is any sampler state from table 20.11. An INVALID_OPERATION
error is generated if target is TEXTURE_2D_MULTISAMPLE, and pname
TEXTURE_BASE_LEVEL is set to a value other than zero.

BUG=angleproject:1590
TEST=angle_deqp_gles31_tests.exe --deqp-case=dEQP-GLES31.functional.texture.multisample.negative.texture*

Change-Id: I5d71731c11fb6e114a57e753e439e180695a7c79
Reviewed-on: https://chromium-review.googlesource.com/560607
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This makes the TSymbolTable interface cleaner and prepares for making
unique id counting thread-safe.

BUG=angleproject:624
TEST=angle_unittests

Change-Id: Ief99c9fc777603de28ba1517e351bc8a00633590
Reviewed-on: https://chromium-review.googlesource.com/570418
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

The symbol ids are fetched from the symbol table. A new utility
function is added to make this more convenient.

BUG=angleproject:1490
TEST=angle_unittests, angle_end2end_tests

Change-Id: I780430e3386f6599503d8290c568ca9bc9cad147
Reviewed-on: https://chromium-review.googlesource.com/559535
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This was causing an assertion failure in updateStorageLevel when the
storage didn't contain the requested level.  Gate the call behind an
isValidLevel check.

TEST=conformance/misc/type-conversion-test.html

BUG=angleproject:1815

Change-Id: Iadf46d232d5a117ae1ae74c6e71677b1e06a5321
Reviewed-on: https://chromium-review.googlesource.com/572705Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

Currently we would only check for the color attachment sample count,
which could return incorrect results for depth or stencil-only
Framebuffers.

BUG=angleproject:2108

Change-Id: I378349c91c0139ee507d88fa6a36a86234fea0d4
Reviewed-on: https://chromium-review.googlesource.com/571064Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

The patch addresses code duplication in cases in which main()'s body node
has to be retrieved from the AST.

TEST=angle_unittests

Change-Id: I0ccee41821a5ecb2cdf09f5a928b178d6c037587
Reviewed-on: https://chromium-review.googlesource.com/561521Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

The patch checks whether ANGLE_multiview can be supported in the OpenGL
renderer, updates the caps and adds a workaround field to enable
multiview support through the NV_viewport_array2 extension.

BUG=angleproject:2062
TEST=angle_end2end_tests

Change-Id: I99dae10564db7bcca41d7624f8de272c1d996e09
Reviewed-on: https://chromium-review.googlesource.com/567934Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

The patch adds the specification for the ANGLE_multiview extension
which enables efficient multiview rendering. The views can be laid
out side-by-side onto a 2D texture or rendered on separated layers of
a 2D texture array.

BUG=angleproject:2062

Change-Id: I4edd3ab0cfbb3906d90c2a5667d8d1f99f291f1c
Reviewed-on: https://chromium-review.googlesource.com/559089Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Don't add the same node pointer to the AST more than once, and assign
the right symbol ids to symbol nodes.

BUG=angleproject:1490
TEST=angle_unittests, angle_end2end_tests

Change-Id: I3f00e9234245fe4b81a2388df3f83e13c4c24856
Reviewed-on: https://chromium-review.googlesource.com/559534Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

The patch fixes a compilation bug caused from having local variable
names clash with the variables names from a parent scope.

BUG=angleproject:1815

Change-Id: I3d23faaafdea9be503da99512b204d7a50a3b228
Reviewed-on: https://chromium-review.googlesource.com/571000Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This will give the browsers the ability to control the cache size,
query and populate the contents, and trim cache contents on memory
pressure.

BUG=angleproject:1897

Change-Id: I6edaa7d307b890223db98792d5b074e4a7fdfaa4
Reviewed-on: https://chromium-review.googlesource.com/563606
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This change added 'buffer' qualifier support in shader which
corresponds to ESSL 3.1 spec, session 4.3.7 'Buffer Variables'.

BUG=angleproject:1951
TEST=angle_unittests:BufferVariablesTest

Change-Id: I2ecb5317d5ea9d378a60b03f86bdae04dbd89e9f
Reviewed-on: https://chromium-review.googlesource.com/534960Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

TextureD3D_3D::copySubImage worked around missing functionality in D3D11
for copying a framebuffer directly to a texture storage but didn't handle
the case of a texture storage already existing.  This caused the image to
have out-of-date data before the new data was copied into it.  Simply copy
the data from the storage back into the image before performing the copy
from the framebuffer and then copy back to the storage afterwards.

TEST=conformance2/textures/misc/copy-texture-image-webgl-specific.html

BUG=angleproject:1815

Change-Id: I308d6a1d3ecbc738f7d0e232bece433e6b353638
Reviewed-on: https://chromium-review.googlesource.com/567199
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

If a storage already existed, it may have old data in it.  Check if the
image is dirty and copy the initialized memory into the storage before
copying data from the framebuffer.

TEST=conformance/textures/misc/copy-tex-image-and-sub-image-2d

BUG=angleproject:1815

Change-Id: Ic69c5519b2e09e4b62025b1bf413d2a71a4a2afb
Reviewed-on: https://chromium-review.googlesource.com/568410Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

The only place it was being used was when parsing array declarators.
The declarator only needs to be added to the AST when the variable
has successfully been declared, so this usage was not necessary.

BUG=angleproject:1490
TEST=angle_unittests

Change-Id: I05b8851cfdebc9253c9fda8b12733f23da604ca6
Reviewed-on: https://chromium-review.googlesource.com/569160Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Passing COLOR_ATTACHMENTm, where m is greater or equal to
MAX_COLOR_ATTACHMENTS, to a FramebufferTexture* function should
generate an INVALID_OPERATION instead of an INVALID_VALUE error.

BUG=angleproject:2106
TEST=angle_end2end_tests

Change-Id: I99045defcbe5eb2afefac1b45062ee4245f50dd3
Reviewed-on: https://chromium-review.googlesource.com/569966Reviewed-by: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Implement TexStorage2DMultisample api for d3d part.

BUG=angleproject:1590
TEST=angle_end2end_tests --gtest_filter=TextureMultisampleTest*
TEST=angle_deqp_gles31_tests --deqp-case=dEQP-GLES31.functional.texture.multisample.negative.fbo_*

Change-Id: Icbfba45b9c2965af02b54dd4060b7b49970cb74b
Reviewed-on: https://chromium-review.googlesource.com/457161
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Collect static functions that are used to create nodes in AST
transformations into a single file.

BUG=angleproject:1490
TEST=angle_unittests

Change-Id: I6f87422988fa088f2f4b48986e378a2909705cb7