When using a vertex buffer with DYNAMIC usage, with robust buffer
access enabled, we would sometimes read out-of-bounds when using very
large values for the index range. An unchecked signed addition would
overflow and lead to reading a negative offset.

Fix this problem by keeping the value size_t whenever possible. Also do
clamped casts when converting to a smaller values.

Also adds a regression test.

Bug: chromium:842028
Change-Id: Ie630ac857c6acfc0bace849a03eebfbaa2fbe89a
Reviewed-on: https://chromium-review.googlesource.com/1055928
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2464

Change-Id: I243c010e30d62e233411b1dab1d13a69b44e4b38
Reviewed-on: https://chromium-review.googlesource.com/1054214Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This caused the backends to fail native context creation and skip tests
on these configs.

BUG=angleproject:2464

Change-Id: I04922853a33c4bd8b38c87145f65431d8eb3db10
Reviewed-on: https://chromium-review.googlesource.com/1054482Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This is the renderer code for GLES1 that delivers basic vertex
attributes, matrices, and allows texturing for unit 0 only (more units
mean implementing the multitexturing pipeline).

+ Sample
+ Update test expectations for GLES1 conformance tests

BUG=angleproject:2306

Change-Id: Id5d5603c967e577290085e5946f2cb7a03d7e017
Reviewed-on: https://chromium-review.googlesource.com/1023988
Commit-Queue: Lingfeng Yang <lfy@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

Bug: 839893, angleproject:2549, angleproject:2550

Change-Id: Id51ad7df2dc225eb6d4e8d4a8668e7e2295d2fa3
Reviewed-on: https://chromium-review.googlesource.com/1054581
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

2D multisample is out of scope since its ES 3 only.

Bug: angleproject:2499
Change-Id: Id5f81d713a2882ba2a91b7d3f281d71a3e9289f4
Reviewed-on: https://chromium-review.googlesource.com/1046786
Commit-Queue: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Also add a destroy method.

BUG=angleproject:2464

Change-Id: I7346b799af4e7d64ed5cc3d5eca8e108ce2cf699
Reviewed-on: https://chromium-review.googlesource.com/1054213Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2464

Change-Id: I24b07557d90988369bc8b7e4b2fe3a500ab7bc36
Reviewed-on: https://chromium-review.googlesource.com/1048115Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

Virtual functions are removed from TSymbol, so the warning for
non-virtual destructor found in a class with virtual functions can be
enabled.

BUG=angleproject:2417
TEST=angle_unittests

Change-Id: Icd0ea2c77ce826739fbe954137f8ee78e6ef5386
Reviewed-on: https://chromium-review.googlesource.com/1051830
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This CL is adapted from work by matavenrath@nvidia.com. It does the
following small optimizations:

* inlines a bunch of accessors.
* reorders checks to hit the cache more often

Also some small style updates.

Bug: angleproject:1671
Change-Id: I8f21318e6644dcfe1f99c98f7f377742fcad78d3
Reviewed-on: https://chromium-review.googlesource.com/1054367
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

The implementation of DynamicBuffer before my changes could have some
issues in the following use case:
- Allocate buffer 1 for Texture 1 (with size as big as the full buffer
size)
- Allocate buffer 2 for Texture 2 (triggers creation of a new underlying
BufferVk and releases the buffer 1 to the Renderer)
- Render with Texture 2 (texture 1 hasn't been flushed yet)
- swap buffers (causes garbage in the renderer to be cleaned up)
- Try rendering with Texture 1, and you'll get an error stating that
the buffer we're trying to copy is not valid (because its already been
freed).

This set of changes:
- Add a new test that specifically triggers this case.
- enables the texture.filtering.cube* tests in dEQP.
- Fixes the issue by adding a manual releasing pattern of the buffers
in DynamicBuffer.

Bug: angleproject:2505
Change-Id: I207ce4a694016766f008cca67d82b252f460e0df
Reviewed-on: https://chromium-review.googlesource.com/1052551Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Luc Ferron <lucferron@chromium.org>

BUG=angleproject:2464

Change-Id: I20aabeef3de6cf1fc13a29b6220e040aa83184d7
Reviewed-on: https://chromium-review.googlesource.com/1039986
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>

-Enables more dEQP tests in functional.texture.filtering
-texture.filtering.cube.* tests don't work yet, another CL will be
targeted at fixing that after this one.

Bug: angleproject:2505
Change-Id: Ic634e0deafa54e8e8ebd0efbdae14263ffdbcef0
Reviewed-on: https://chromium-review.googlesource.com/1037183Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Luc Ferron <lucferron@chromium.org>

This is a reland of c009255c

Re-landing after crbug.com/840825 was updated.

Original change's description:
> Update cq.cfg with new builders.
>
> These builders are replacing the old standalone builders and the old
> compile-only builders. They should be much faster. They also can be
> extended in the future when we support running tests from ANGLE
> standalone.
>
> Bug: chromium:833999
> Change-Id: Ice44c0fb8cb32d8be573f81d5df858509b00a107
> Reviewed-on: https://chromium-review.googlesource.com/1049959
> Reviewed-by: Jamie Madill <jmadill@chromium.org>

Bug: chromium:833999
Bug: chromium:840825
Change-Id: Ie08ebbef6b5802f0bb57053e082fac2e0f9aae34
Reviewed-on: https://chromium-review.googlesource.com/1052747Reviewed-by: Jamie Madill <jmadill@chromium.org>

Pass the proxy context to the onDestroyDefault call.

BUG=angleproject:2464

Change-Id: I47f869d623e238ca3680c962387ba9359e7d3844
Reviewed-on: https://chromium-review.googlesource.com/1052220Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2464

Change-Id: Icd260db9bbd11699b2d0f6152e898c38baa4844d
Reviewed-on: https://chromium-review.googlesource.com/1052219Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This is a problem when we emulate RGB8 with RGBA8.

Bug: angleproject:2536
Change-Id: I5665e513ef0138bc56f52ba35342378d8392989f
Reviewed-on: https://chromium-review.googlesource.com/1051687
Commit-Queue: Luc Ferron <lucferron@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This is a prerequisite to support incomplete textures.

Bug: angleproject:2536

Change-Id: Ica40bbd185a67253f457148007b08f6735da788c
Reviewed-on: https://chromium-review.googlesource.com/1050308Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Luc Ferron <lucferron@chromium.org>

This also adds unit tests for negative modulus operands.

BUG=chromium:839468
TEST=angle_unittests

Change-Id: I6ab5959ba4f7045d2bde71d246695ef0983c5608
Reviewed-on: https://chromium-review.googlesource.com/1046055Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=angleproject:2464

Change-Id: Ib2a43bc8e2da467f49e8938c386a5e867c80d5bc
Reviewed-on: https://chromium-review.googlesource.com/361921Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This reverts commit fad918f8.

Reason for revert: attempt to fix anglebug.com/2537

Original change's description:
> ANGLETest: Reuse test windows per-renderer
> 
> When running angle_end2end_tests unfiltered with the OpenGL and Vulkan
> backends enabled, the test window was recreated all the time and grabbed
> focus every-time it was created. This made it impossible to do anything
> with the machine running the tests.
> 
> Fix this by having one OSWindow per renderer group that's lazily created:
> this solves most of the issue since only a couple windows end up being
> created, and at the beginning of the test suite.
> 
> BUG=
> 
> Change-Id: I7a51300f0d59d8b6bb79e54d20b3acbf01068002
> Reviewed-on: https://chromium-review.googlesource.com/1038433
> Commit-Queue: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Jamie Madill <jmadill@chromium.org>

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

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

Change-Id: I93bdfa38757cbe2a6ce939c0c3e3da806307e7dd
Reviewed-on: https://chromium-review.googlesource.com/1050326Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>

This reverts commit c009255c.

Reason for revert: Seems to be some kind of infra or goma error with
the mac configs that wasn't showing up last night.

Original change's description:
> Update cq.cfg with new builders.
> 
> These builders are replacing the old standalone builders and the old
> compile-only builders. They should be much faster. They also can be
> extended in the future when we support running tests from ANGLE
> standalone.
> 
> Bug: chromium:833999
> Change-Id: Ice44c0fb8cb32d8be573f81d5df858509b00a107
> Reviewed-on: https://chromium-review.googlesource.com/1049959
> Reviewed-by: Jamie Madill <jmadill@chromium.org>

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

Change-Id: I8bf895d7473da7fe44a3bb866a2026b59a374868
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: chromium:833999
Reviewed-on: https://chromium-review.googlesource.com/1050325Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

These builders are replacing the old standalone builders and the old
compile-only builders. They should be much faster. They also can be
extended in the future when we support running tests from ANGLE
standalone.

Bug: chromium:833999
Change-Id: Ice44c0fb8cb32d8be573f81d5df858509b00a107
Reviewed-on: https://chromium-review.googlesource.com/1049959Reviewed-by: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:2464

Change-Id: Ia0f0788a1bc4d2ecd883b058f15c629cac5fd166
Reviewed-on: https://chromium-review.googlesource.com/1036063
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

quadVertices.data() pointer needs to remain valid until drawArrays
is called. To guarantee that quadVertices should stay in the stack
until the end of drawQuad().

BUG=angleproject:2533
TEST=angle_end2end_tests

Change-Id: I263262db9a9ed9c9cd0d8679addd09677ad7179e
Reviewed-on: https://chromium-review.googlesource.com/1046600
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

When running angle_end2end_tests unfiltered with the OpenGL and Vulkan
backends enabled, the test window was recreated all the time and grabbed
focus every-time it was created. This made it impossible to do anything
with the machine running the tests.

Fix this by having one OSWindow per renderer group that's lazily created:
this solves most of the issue since only a couple windows end up being
created, and at the beginning of the test suite.

BUG=

Change-Id: I7a51300f0d59d8b6bb79e54d20b3acbf01068002
Reviewed-on: https://chromium-review.googlesource.com/1038433
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This patch is the first one of the series that organize
implementation dependent resource limits on every type
of shader into ShaderMap and clean up all the related
code.

In the next patch all such resource limits are put in
the corresponding ShaderMaps.

BUG=angleproject:2169

Change-Id: I40cb58c55b2e82df33221ddb36eff0abcd7e8b22
Reviewed-on: https://chromium-review.googlesource.com/1034108
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2527

Change-Id: I000f68366de4119375b6d3c79bc2eff3ebd5db9e
Reviewed-on: https://chromium-review.googlesource.com/1042885
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

This works around the most common instances of a bug that reproduces
on some NVIDIA OpenGL drivers prior to version 397.31.

BUG=chromium:798117
TEST=angle_end2end_tests

Change-Id: Iafc6a9a64e56fa98b42117149fe6867040e932e5
Reviewed-on: https://chromium-review.googlesource.com/1042190
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This patch adds the link validation on the maximum combined shader
output resources required in OpenGL ES 3.1 SPEC.

OpenGL ES 3.1 SPEC has restrictions on the sum of the number of all
active images, shader storage blocks and fragment shader outputs. A
link error will be generated if this sum exceeds the implementation-
dependent value of MAX_COMBINED_SHADER_OUTPUT_RESOURCES.

In order not to affect the existing image tests, this patch also
sets a temporary value for maxCombinedShaderOutputResources on D3D11
back-ends. We will set more accurate values for all the UAV related
resource limits in the next patch.

BUG=angleproject:2345
TEST=dEQP-GLES31.functional.state_query.integer.max_combined_shader_output_resources_*

Change-Id: Ib83a19ef0ae0b9af3422b5c970c7c07d96b2359d
Reviewed-on: https://chromium-review.googlesource.com/1039155
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Add generation of libGLESv2.cpp and libGLESv2.def to generate_entry_points.py

Bug: angleproject:2476
Change-Id: I86c7fb31f73ccbbbc32b28acca179b11527dff9e
Reviewed-on: https://chromium-review.googlesource.com/1040647
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

The D3D11 backend used to calculate the blit areas incorrectly when
the source blit area provided via the API stretched outside the source
framebuffer in all directions.

This is now fixed and the code is also simplified.

BUG=angleproject:2521
TEST=angle_end2end_tests

Change-Id: I46d5de27464a8455b3956c0be598f75550ca1616
Reviewed-on: https://chromium-review.googlesource.com/1032787Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

avoid1BitAlphaTextureFormats workaround was added to angle in 288584
due to an old driver bug on Intel and AMD that 1-bit alpha always
rounds up when converting from float to unsigned int. The workaround
uses rgba8 instead of *a1 to avoid the driver bug and optimizes precision.
However, this workaround brings a new issue because 1-bit alpha can only
represent u0 or u1 while 8 bits alpha covers from u0 to u255. For
example, if we expect to render to a rgb5_a1 renderbuffer, the expected
alpha value should be 0 or 255, but actually get a value between 0 and
255 which is incorrect. The current Intel drivers have fixed the old
driver bug. So we suggest to disable this workaround for Intel drivers.

TEST=dEQP_GLES2.Default/functional_fbo_render_color_clear_rbo_rgb5_a1_depth_component16_stencil_index8
--deqp-egl-display-type=angle-gl
BUG=angleproject:2349

Change-Id: I14933f92fa27031ff7442fa437f77a3c67f2f1db
Reviewed-on: https://chromium-review.googlesource.com/1034163Reviewed-by: Jiajia Qin <jiajia.qin@intel.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

The test fails on D3D11, which seems to ignore floor() calls if
they're nested in a particular way with magic multipliers inside.

BUG=chromium:838885
TEST=angle_end2end_tests

Change-Id: I2c8749defa923553bfee69149da15f8e4ddf5096
Reviewed-on: https://chromium-review.googlesource.com/1041959Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Bug: angleproject:2418
Change-Id: Ia146c202cff96b1de9cb55ee44fa5479cef36b53
Reviewed-on: https://chromium-review.googlesource.com/1039777Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Tobin Ehlis <tobine@google.com>

Renames the macro to be more ANGLE-ey.

Refactoring only.

Bug: angleproject:1671
Change-Id: I8f2dd227c7e2025886ec66e85efa877ea261d0ad
Reviewed-on: https://chromium-review.googlesource.com/1036209Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:2464

Change-Id: I59fd38c626f7076b4065f25601de3e53c1a446ad
Reviewed-on: https://chromium-review.googlesource.com/1040051Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

BUG=angleproject:2169

Change-Id: I129a9d8e295859daa071a298dab9fe1895315cc0
Reviewed-on: https://chromium-review.googlesource.com/957318Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

This implements masked color clear using clear shaders. The shaders
themselves were introduced in a prior patch. In order to get the
right setup for the draw call to trigger the shaders, we create
an internal pipeline from the pipeline cache. We also use a special
pipeline layout with only uniform buffers. The masked out color
channels are disabled via settings on the pipeline.

This fixes the dEQP masked color clear tests. It doesn't handle
masked color clears combined with the depth clear bit. It's likely
we don't have test coverage for this case.

Bug: angleproject:2455
Change-Id: I513248cc0f7e58f490fc16ac9afb40119d730ccc
Reviewed-on: https://chromium-review.googlesource.com/1031373
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This makes the API easy to use with internal shaders and pipelines.
This is useful for the implementation of masked color clear.

Also renames the serials as shader serials. This is more precise than
program serials.

Bug: angleproject:2455
Change-Id: Ie6247d1212ed4df856b561a5e9f16c0378202588
Reviewed-on: https://chromium-review.googlesource.com/1032857
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>