Re-land with protection against div-by-zero in samples compatibility
check.

BUG=722684

Change-Id: I3d5c310d1f2cb4d8b92d80492435855c3c4ad807
Reviewed-on: https://chromium-review.googlesource.com/517427Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

Support is added according to the proposal for WEBGL_multiview. When
the multiview extension is enabled in an ESSL 1.00 shader, num_views
can be specified using a layout qualifier. To support this, enabling
the multiview extension makes "layout" a keyword rather than an
identifier in ESSL 1.00.

The type of gl_ViewID_OVR is also different in case of ESSL 1.00: it
has to be a signed integer, since unsigned integers are not supported
in ESSL 1.00.

Some existing tests for multiview shaders are extended in this patch.
The changes make sure that vertex shader "in" qualifier is still
allowed in ESSL 3.00 multiview shaders, since this patch adds code to
disallow it in ESSL 1.00 multiview shaders.

BUG=angleproject:1669
TEST=angle_unittests

Change-Id: I65dbbbebabdb24cf0bb647d40aa80cebf713c4f7
Reviewed-on: https://chromium-review.googlesource.com/506088Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This reverts commit ff77c359.

Reason for revert: Breaks FramebufferMixedSamplesTest on Android NVIDIA

BUG=angleproject:2045

Original change's description:
> Refactor multisample framebuffer completeness checks.
> 
> BUG=722684
> 
> Change-Id: Iebe6968ebd693e7f051394a040eac1cf6f539e6e
> Reviewed-on: https://chromium-review.googlesource.com/508221
> Reviewed-by: Geoff Lang <geofflang@chromium.org>
> Reviewed-by: Jamie Madill <jmadill@chromium.org>
> Commit-Queue: Geoff Lang <geofflang@chromium.org>
> 

TBR=fjhenigman@chromium.org,geofflang@chromium.org,jmadill@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
BUG=722684

Change-Id: I1abab021ba73b218cbbe60d4e7bfdaae56955c64
Reviewed-on: https://chromium-review.googlesource.com/517390Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

This consolidates all texture allocation into ResourceManager11.
It removes a lot of error checking and resource management code.
In a few places we're storing some redundant information, like in
TextureStorage11, we might store the Format pointer in two places,
or the Texture's size.

BUG=angleproject:2034

Change-Id: I9369e76925a67632c444c662e5667c5ed7875547
Reviewed-on: https://chromium-review.googlesource.com/503252Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Precision emulation rounding function calls and vector/matrix dynamic
indexing function calls now get a flag that indicates that running the
function body does not have side effects. This avoids triggering
asserts in OutputHLSL when these internal function calls end up on the
right hand side of a non-unfolded logical operator.

BUG=chromium:724870
TEST=angle_unittests

Change-Id: Id1a2b6b744f6a04c6cdb86a8f4109ccc12bc70b9
Reviewed-on: https://chromium-review.googlesource.com/516705Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=722684

Change-Id: Iebe6968ebd693e7f051394a040eac1cf6f539e6e
Reviewed-on: https://chromium-review.googlesource.com/508221Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

BUG=chromium:723069

Change-Id: I2b3c9be297c2b65955e31f393756ca266cc7c60b
Reviewed-on: https://chromium-review.googlesource.com/514436Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This will allow us to use EGLAttrib and pass pointers as Display
init parameters if necessary.

BUG=angleproject:2042

Change-Id: Ib0f85d71bc9d3dff2db9453012f40303f3c3bd7c
Reviewed-on: https://chromium-review.googlesource.com/513518Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This will make staging texture tracking easier.

BUG=angleproject:2034

Change-Id: I2f0418cc5784100bf6fba59b4bda1b2dd9dc18d1
Reviewed-on: https://chromium-review.googlesource.com/503251Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Some non-renderable texture formats remain unimplemented.

BUG=angleproject:1932

Change-Id: Id206432d6e26a70fc0e84478a4e43e9eefadcf2f
Reviewed-on: https://chromium-review.googlesource.com/491948
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

We will need the Renderer pointer for resource allocation, so
pass it around instead of storing the device and context.

BUG=angleproject:2034

Change-Id: Iaf271913f88c5402895aa81de310aa22fcd72cc4
Reviewed-on: https://chromium-review.googlesource.com/509930Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

We were not correctly checking for a zero-size buffer, which should
not trigger allocating a scratch buffer.

BUG=angleproject:1635

Change-Id: Iac0a3d8f1eeeb7b39c59eec411bec78a4f21bcd3
Reviewed-on: https://chromium-review.googlesource.com/513478Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Precision emulation for compound assignment used to set the wrong type
for the compound assignment nodes, which could cause an assert to
trigger. The wrong rounding function was also being called in the lowp
rounded compound assignment function.

BUG=chromium:699479
TEST=angle_unittests

Change-Id: I60b4cb3bf1830e8249511c13037348bb2423e5b9
Reviewed-on: https://chromium-review.googlesource.com/514045Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This change also moves all SRV storage to use the custom smart
pointer classes in ResourceManager11. Every single SRV is now
allocated in ResourceManager11. For TextureStorage11 and
RenderTarget11, we use a shared pointer type since the SRVs use
shared ownership by both classes.

BUG=angleproject:2034

Change-Id: I90666fbbbc23ff10870b7401f3da09ef79258136
Reviewed-on: https://chromium-review.googlesource.com/503250Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This prevents Chrome's about:gpu from being filled with bad shaders,
and instead only prints the relevant error lines.

BUG=None

Change-Id: I75fcd2ef920d2ed7b98e8668c487b0921faf4c0b
Reviewed-on: https://chromium-review.googlesource.com/513417Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

When ANGLE is used with Chromium, having two copies of safe numerics
code in namespace base causes ODR violations.

BUG=449754

Change-Id: I686049e7d8926373d00dd17ec8142fa3c508b9c5
Reviewed-on: https://chromium-review.googlesource.com/513434Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

BUG=chromium:723856

Change-Id: I7481d3335111c697f77aa0ea673614e79b4a86f6
Reviewed-on: https://chromium-review.googlesource.com/513588Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Allow CopyTexImageTest.SubDefaultFramebuffer and
CopyTexImageTest.DefaultFramebuffer to work with Mesa and GLX back end
by doing a clear before reading the framebuffer.

BUG=angleproject:2027

Change-Id: Ibb10369e3f5aceb60511fbed1d67a28132734b29
Reviewed-on: https://chromium-review.googlesource.com/507952Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

The spec isn't very explicit about disallowing this, but conversions
from structs are not among the conversion constructors or specified
in any other way either.

BUG=angleproject:2036
TEST=angle_unittests

Change-Id: I23f2ceda1d1348cec0d3bba38a7a013275ff84eb
Reviewed-on: https://chromium-review.googlesource.com/514002
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Otherwise we may run into a name conflict issue if the shader code is
run through the translator twice, since neither user-defined function
names or internal function names are currently being prefixed in GLSL
output. This could be fixed by prefixing user-defined variables in
GLSL output, but this solution is much simpler.

BUG=angleproject:1966
TEST=angle_end2end_tests, WebGL conformance tests

Change-Id: I15c8de5a0a5e596fafe9f55e8d370345c790d5cc
Reviewed-on: https://chromium-review.googlesource.com/509688
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

Apparently the current clang roll has fixed these already.

BUG=722345

Change-Id: I59f07f197fdfd1eb6e000390ee93d41938fe4d42
Reviewed-on: https://chromium-review.googlesource.com/510031
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Use "?:" as the operator string to make the error message clearer.

Update some comments to refer to specific revisions of the spec, since
there have been some spec changes in this area.

BUG=angleproject:2032

Change-Id: Ic5d128391bfa46187ad335228077f5eab9eac349
Reviewed-on: https://chromium-review.googlesource.com/500270Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This uses the new classes introduced in ResourceManager11. Smart
pointers mean we can use ANGLE_TRY in more places, and don't need
to manually release these views. There is now a single point in the
D3D11 back-end where depth stencil views are allocated.

BUG=angleproject:2034

Change-Id: If0de2529ece1298e8babf24c07cc4be9849cc4de
Reviewed-on: https://chromium-review.googlesource.com/503249Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

This patch intends to solve several design issues by refactoring
the process of syncState in VertexArrayGL before implementing
ES3.1 feature Vertex Attrib Binding on the OpenGL back-end.
1. Use nullptr as the flag of using client memory pointer
2. Simplify comparisons in updateAttribPointer.
3. Put all code related to mFunctions->vertexAttrib*Pointer()
into an individual function
4. Remove redundant mStateManager->bindVertexArray() in all
update* functioins and only call it once in syncState().

BUG=angleproject:1593

Change-Id: I8f68534bb9291a601b9b77954d7281e5171c2b55
Reviewed-on: https://chromium-review.googlesource.com/465378
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Multiple insertions to the same parent can be handled as long as the
insertions don't have the same position as well. They're sorted in
reverse order so that insertions to greater indices get processed
first.

This helps to make some AST transformations faster - they don't need
multiple tree traversals and updateTree() steps anymore. The
SimplifyLoopConditions AST transformation is changed to only use a
single traversal.

BUG=angleproject:1966
TEST=angle_unittests, angle_end2end_tests,
     WebGL conformance tests,
     dEQP-GLES2.functional.shaders.*select_iteration_count*

Change-Id: I3183f2644ad58b282926093c77b204fb7e4e9b71
Reviewed-on: https://chromium-review.googlesource.com/506202Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

It doesn't need to use a traverser, since all function definitions can
be found simply by iterating over the children of the root node.

BUG=angleproject:2040
TEST=angle_unittests

Change-Id: I18a98eff9710485c0cdce73e7fffe124f7d7afb2
Reviewed-on: https://chromium-review.googlesource.com/508791Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

The names were wrong, so the test expectations weren't applying.

BUG=722345

Change-Id: Ic64abf08e512dbf3c297ee89a74b614cd4590b58
Reviewed-on: https://chromium-review.googlesource.com/508166Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>

The resource manager tracks the allocations and deallocations of all
D3D11 resources that have device memory: Buffers and Textures (which
are either 2D or 3D). It also tracks the number of active Views (DSV,
RTV, and SRV, potentially UAV with ES 3.1).

A new smart pointer type will wrap the resource deallocation so that
the object notifies the manager when ANGLE is done with the resouce.
This allows us to track precisely how much GPU memory we think we're
using at any point, and will help prevent resource leaks for these
object types. It also makes initialization and releasing much more
trivial.

The base class for a resource uses a template template parameter so
that we can use a unique or shared pointer depending on if the object
in question needs unique or shared ownership. For some resources
(in our case, SRVs are shared between the TextureStorage11 and
RenderTarget11 classes, and Textures are shared in many places) we
need to have the ability to have shared ownership. Unique ownership is
a little bit more efficient so supporting both can be helpful.

In this patch RenderTargetView allocation is moved to use the unique
smart pointer.

BUG=angleproject:2034

Change-Id: Idb1245c24cd66733b8b5ca524c727350b2d2c745
Reviewed-on: https://chromium-review.googlesource.com/503248
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

BUG=722684

Change-Id: I6f47d92b450a056a2344767bef28e96c4552f98e
Reviewed-on: https://chromium-review.googlesource.com/506927Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>

It doesn't need to use a traverser, since all function definitions can
be found simply by iterating over the children of the root node.

BUG=angleproject:2040
TEST=angle_end2end_tests

Change-Id: I380942f90a0e73152f296b98d1fb027762d913b0
Reviewed-on: https://chromium-review.googlesource.com/508689Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

BUG=722345
TBR=geofflang@chromium.org

Change-Id: Ie4c488b730ed2b51ce8f62d5bf7961dcc8ac0104
Reviewed-on: https://chromium-review.googlesource.com/508102Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Kenneth Russell <kbr@chromium.org>

sRGB textures need to linearize their data before averaging, this worked
correctly on the GPU mipmap generation functions but not the CPU ones.

BUG=angleproject:2019

TEST=conformance/extensions/ext-sRGB

Change-Id: I554dac89b12acf5ebf5b7cab6f6faf0bce5168a6
Reviewed-on: https://chromium-review.googlesource.com/506241
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This allows us to include <ostream> instead of <iostream> to avoid
including a static initializer.

BUG=angleproject:2037

Change-Id: Ib7e84a15018fa951bad1c87ffec4bfb0c896749f
Reviewed-on: https://chromium-review.googlesource.com/507627Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Hopefully this makes the bot green while we investigate whether the bug
is in dEQP or clang, and find a fix.

BUG=722345

Change-Id: I2813881addb4ebfe23443244d175b4c6db698a7d
Reviewed-on: https://chromium-review.googlesource.com/507767Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>

It doesn't need to use a traverser, it's simpler to just iterate over
all statements in the global scope.

BUG=angleproject:1966
TEST=angle_unittests, WebGL conformance tests

Change-Id: I11200f72842db86be2bcdd11934262da183cc3b4
Reviewed-on: https://chromium-review.googlesource.com/504727
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

This cleans up the formatting in many places.

BUG=None

Change-Id: I6c6652ebc042f1f0ffecced53582d09d66b4f384
Reviewed-on: https://chromium-review.googlesource.com/487884Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

BUG=angleproject:1955
TESTCASE=angle_end2end_tests

Change-Id: I69b4df83d67017d39df67753d6d17fc15ececebf
Reviewed-on: https://chromium-review.googlesource.com/462067
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Constructor arguments don't need to be rounded if the constructor
result will be rounded to the same precision.

This will make precision emulated shaders slightly faster to execute
in some cases.

BUG=angleproject:874
TEST=angle_unittests

Change-Id: I4220cd2289c97dcf5b7a25a4cbdd18487947c2d2
Reviewed-on: https://chromium-review.googlesource.com/500288Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

Share code for finding the main function from the AST between
InitializeVariables, DeferGlobalInitializers,
EmulateGLFragColorBroadcast and UseInterfaceBlockFields. This makes
InitializeVariables simpler in particular, as it doesn't need an AST
traverser anymore.

BUG=angleproject:2033
TEST=angle_unittests, WebGL conformance tests

Change-Id: I14c994bbde58a904f6684d2f0b72bd8004f70902
Reviewed-on: https://chromium-review.googlesource.com/501166Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Olli Etuaho <oetuaho@nvidia.com>

This patch intends to fix a crash issue in the win-clang build of
ANGLE by adding the missing currentValueAttrib->binding assignment
in StateManager11.cpp::updateCurrentValueAttribs(). In D3D11 all
vertex attributes (VertexAttribute and its VertexBinding) should be
treated as a whole, so we should always ensure these two parts are
availabe.

This patch also add ASSERTs before using *translated->attrib and
*translated->binding to prevent a TranslatedAttribute object
having a null attrib or binding.

BUG=chromium:721783, angleproject:1593

Change-Id: Id11d6f1d4c37daabad2265e01ea38eb51046b9cb
Reviewed-on: https://chromium-review.googlesource.com/505928Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>