Fix treating undefined preprocessor identifiers as error.

Change-Id: Ifa9db4ab541d9421dddfe6b09571d8b5d38a479d
Reviewed-on: https://swiftshader-review.googlesource.com/5011
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Use namespaces for context owned objects.

Bug 19219444

Change-Id: I9606dfb30693a15a06896d83888022ccbaa8db2e
Reviewed-on: https://swiftshader-review.googlesource.com/5010
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Use a shared namespace for shader and program objects.

Bug 19219444

Change-Id: I5eb797eed31ab233866e5c23d83298d3c57091a9
Reviewed-on: https://swiftshader-review.googlesource.com/4989
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Use the namespace for storing objects.

Bug 19219444

Change-Id: I277d80be47d2057f31559c5058e2f6ea422dacfd
Reviewed-on: https://swiftshader-review.googlesource.com/4987
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix reserving user picked object names.

Bug 19219444

Change-Id: Ic0e3c5a37174917a541452bab9f92738bc766044
Reviewed-on: https://swiftshader-review.googlesource.com/4986
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Allocate object names into an unordered set.

Bug 19219444

Change-Id: Ic100f0bfe64b1f92f13c4f6a413e30095b7b5a6c
Reviewed-on: https://swiftshader-review.googlesource.com/4985
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Refactor NameSpace into a template class.

Bug 19219444

Change-Id: Id4b209f491b3a3dde716118309cbc8122feb25d0
Reviewed-on: https://swiftshader-review.googlesource.com/4984
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Don't blit to NULL format buffers.

This was causing crashes in Direct3D 9 applications using the "NULL" FOURCC
used as a render target format for rendering to depth only.

Bug 25351344

Change-Id: I69c2e0869f859489321c26dba56b7a80a2ed2f28
Reviewed-on: https://swiftshader-review.googlesource.com/5000
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Removing superfluous element in semantic array

The semantic was of size 11, but the 11th member, meant for fog,
was never used, so the array was resized to size 10.

Change-Id: I2afbc2bc52981eb1002252cc3fb89c6954314c23
Reviewed-on: https://swiftshader-review.googlesource.com/4988
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Use the framebuffer object's stencil attachment.

Bug 27460431

Change-Id: Ic030624cc34b31519882e54497457a1b92eaac45
Reviewed-on: https://swiftshader-review.googlesource.com/4981
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Refactor buffer clearing.

Bug 27460431

Change-Id: I90de3285c86c0d3187969270dcbd78a8b02feee9
Reviewed-on: https://swiftshader-review.googlesource.com/4978
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Reduce math function duplication.

Change-Id: If0fe05eff397c8d88753fb2b1a1852722c73602e
Reviewed-on: https://swiftshader-review.googlesource.com/4979
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Bind depth and stencil buffers separately.

Bug 27460431

Change-Id: Ice854b6faec09dc5f2cbdc2a5c3ffba9a73bfb70
Reviewed-on: https://swiftshader-review.googlesource.com/4977
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Support separate depth and stencil buffers.

Bug 27460431

Change-Id: If11e16597b3fdfbfa6f1f2282e287b302b541f63
Reviewed-on: https://swiftshader-review.googlesource.com/4976
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added support for more depth types

Added format arguments to DepthBuffer/DepthStencilBuffer
constructors and added existing types to type conversion
functions so that more than one depth/stencil format may
be supported.

Change-Id: Ifd60b896e93a1ba4d05a30f123a1322cdd5254a5
Reviewed-on: https://swiftshader-review.googlesource.com/4766
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Remove FORMAT_A1R5G5B5 from EGL configs.

This is not a natively supported pixel format, thus causing a performance
penalty for conversion. It is not supported by Nexus 4 or 5. Android has
deprecated both 4444 and 5551 as HAL formats. Also, UNSIGNED_SHORT_5_5_5_1
has the alpha component in the least significant bit, whereas A1R5G5B5 has
alpha as the most significant bit.

Bug 27690616

Change-Id: I350f0e780cd87b8a626e2c8914a65c61dbf63258
Reviewed-on: https://swiftshader-review.googlesource.com/4960
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

32-bit integer vertex attribute

Added 32-bit signed and unsigned vertex attribute

Change-Id: Ibbf9c035294584db71713ae7aeca36b32a8564c0
Reviewed-on: https://swiftshader-review.googlesource.com/4974
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed some unary operators

There were a few issues in unary operators:
- Many were not compiling because the promote function had not
  been adjusted to take the new builtin functions into account
- abs and sign had not been implemented for int
- For the integer abs version, used pabsd. Removed the extra
  argument, which seemed unnecessary (abs should have 1 input,
  1 output, AFAIK).

Change-Id: If02c5040438e8c45c99fc7b3c55107448c85cf58
Reviewed-on: https://swiftshader-review.googlesource.com/4970
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Add the OGLESBasicTnL sample for Linux.

Change-Id: I0c0a9bc99e8cf9ea92919c77ef6c05b1439f40da
Reviewed-on: https://swiftshader-review.googlesource.com/4941
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix jb-mr1-gce-dev build.

Change-Id: Iec28db332fe328603a68c3073403bfbe6067bf44
Reviewed-on: https://swiftshader-review.googlesource.com/4735
Reviewed-by: Greg Hartman <ghartman@google.com>
Tested-by: Greg Hartman <ghartman@google.com>
(cherry picked from commit 5d0bad6eea31ee25437877c11e91c1b39be07030)
Reviewed-on: https://swiftshader-review.googlesource.com/4734
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix draw race condition regression.

Change-Id: Idcf7c19c2467edf941a8a426078b6f7d7779ab12
Reviewed-on: https://swiftshader-review.googlesource.com/4943
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Disable SIGXCPU signal handling by LLVM.

SIGXCPU is used by Mono, the C# framework used by the Unity game engine.
LLVM does not make any setrlimit(RLIMIT_CPU) calls, so when the SIGXCPU
signal is raised it is not up to LLVM to decide how to handle it.

Bug 23017372

Change-Id: I292b0eac527c5efd66022e6f75bbcb68879a30a4
Reviewed-on: https://swiftshader-review.googlesource.com/4940
Reviewed-by: Greg Hartman <ghartman@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Transform feedback query implementation

This is a first implementation of the transform feedback
primitives written query.

It passes available related dEQP tests (more tests will be
available when transform feedback is fully implemented).

Change-Id: Iaee97e3e2e853174b7f22836f72dabede1ed04c1
Reviewed-on: https://swiftshader-review.googlesource.com/4912
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Rasterizer discard implementation

Implemented rasterizer discard by not using the SetupRoutine
and always returning 0 when rasterizer discard is enabled.
Also guarded all clear calls with a check for rasterizer
discard. Passes all rasterizer discard related dEQP tests.

Change-Id: I1e5c107e3dba550f7a5b01eb302ff51bdac303dc
Reviewed-on: https://swiftshader-review.googlesource.com/4876
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Add missing operation.

Bug 27227050

Change-Id: Id8b6357f25888801dec9bbedc5855faa58def62d
Reviewed-on: https://swiftshader-review.googlesource.com/4920
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Daniel Toyama <kenjitoyama@google.com>

Fixed color clear for non multisampled rendertargets

Bug 27454381

Change-Id: Ie59adfa5e5faf08a09427c993775e7d2892d311b
Reviewed-on: https://swiftshader-review.googlesource.com/4913
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fix Android emulator library loading on Windows.

Change-Id: I1eb8764c622ffd99a5937fe539bf78dc01d77f23
Reviewed-on: https://swiftshader-review.googlesource.com/4911
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fixed color clear on multisampled rendertargets

Only the 1st sample's buffer of multisampled buffers was getting
cleared instead of clearing all the samples' buffers, which led
to incorrect results. Added a loop to fix the behavior.

Change-Id: If22ebf2df61ae6afbc4c2975a9baee3c18a2492b
Reviewed-on: https://swiftshader-review.googlesource.com/4910
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Correct reciprocal approximation for power-of-two values.

Intel's reciprocal approximation instruction is not exact for power-of-two
values. It provides 12 bits of mantissa precision and keeps a balance between
positive and negative errors, but the reciprocal of 2^x is not 2^-x. This
affects conformance tests which expect varyings not to be affected by the
perspective division. Correct for this by multiplying by the inverse.

Bug 27165393

Change-Id: Ie52ec511a14a4f447adc47ce9c875bbad03cd274
Reviewed-on: https://swiftshader-review.googlesource.com/4903
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Parser cleanup

Ported some changes from Angle. Added 4 new functions to
ParserHelper to remove some code from glslang.y. Added
some extra checks regarding qualifiers and precision.

Change-Id: I2856a764749bef0df500891eb4c003211e634673
Reviewed-on: https://swiftshader-review.googlesource.com/4900
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix evaluating empty loop condition to true.

Bug 27351438

Change-Id: If15f0f91931f34af6e78ad773036b91ff5d57d01
Reviewed-on: https://swiftshader-review.googlesource.com/4902
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed FenceSync object ref count

FenceSync objects are ref counted objects, so the are deleted
using the release() method. This means that they need to be
refed at creation (since we only store the pointer inside the
map), otherwise we'll hit the assert at deletion.

FenceSync objects are currently only ever refed once (at creation)
and unrefed once (at deletion), but are not fully implemented yet.

Change-Id: Ie693ace8895b6140ae96f9325d5c48951c7e9730
Reviewed-on: https://swiftshader-review.googlesource.com/4901
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Remove unneeded libraries

Change-Id: I827b663c9e3018162b192f267fc038ada4b5ac36
Reviewed-on: https://swiftshader-review.googlesource.com/4879
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implement support for separate minification/magnification filters.

Bug 22373253

Change-Id: Iaa30a341e5eaa58c2ef531fce503631828c5ee9d
Reviewed-on: https://swiftshader-review.googlesource.com/4757
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fixed Android build failure

Added missing .c_str() to convert the string object
into a character string.

Change-Id: I3810f67a2462f7717fdec61679e09a191b043adf
Reviewed-on: https://swiftshader-review.googlesource.com/4878
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed GLES3.0 attribute locations

Previously, it was allowed for multiple attributes to share a
location or overlap, but in ES3.0, it should cause a linking error.

Passes WebGL conformance tests.

Change-Id: I1c65b0cb31a04680a25ac54d20f6ee0d869251b9
Reviewed-on: https://swiftshader-review.googlesource.com/4877
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Default framebuffer type fix

In OpenGL ES 3.0, the default framebuffer should use
GL_FRAMEBUFFER_DEFAULT instead of GL_RENDERBUFFER for
default buffer. I also added the Framebuffer::IsRenderbuffer()
utility function to make the transition easier.

Change-Id: I041e610738a4a656555ae7fa7ba41ba68b1fe9ea
Reviewed-on: https://swiftshader-review.googlesource.com/4763
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Packing fix

Unified and fixed packing and unpacking computations.

Change-Id: I1ea2bcf28945a9f105152a6836f11bcb2859750c
Reviewed-on: https://swiftshader-review.googlesource.com/4715
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed setting Renderbuffer's layer and level

The original code allowed Renderbuffer objects to select
layer and level at construction time, but after that point
these parameters were not modifiable. This cl adds the code
to modify layer and/or level when requested.

Change-Id: Ic694904f83b794879110bd0505a36a011d79a2a5
Reviewed-on: https://swiftshader-review.googlesource.com/4765
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed 2D Array texture binding query

The 2D Array texture binding query was stll using
TEXTURE_3D instead of using TEXTURE_2D_ARRAY.

Change-Id: Ib55007995c336e72aaae7fd62918f232a5c1c3fc
Reviewed-on: https://swiftshader-review.googlesource.com/4744
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Defined uniform block related constants

A few numbers didn't match between the default value entered
in Context.cpp and the constants from Config.hpp. A few default
values were also erroneously larger than required. Constants were
centralized in Config.hpp to solve the issue.

Change-Id: I60e5d93c43ce61e125c261bdf07ce50e7130a296
Reviewed-on: https://swiftshader-review.googlesource.com/4742
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix disallowing binding to the default framebuffer.

Bug 27166315

Change-Id: Ia9774e6560b326ca963830c53e030487c239164a
Reviewed-on: https://swiftshader-review.googlesource.com/4770
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix multilib module path.

Bug 27157109

Change-Id: Ie477455d0b59a8432224f3956e2ba7a1140182af
Reviewed-on: https://swiftshader-review.googlesource.com/4767
Reviewed-by: Greg Hartman <ghartman@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed detaching a buffer

- Quite a few buffers weren't being checked properly when a buffer
  was getting detached from the current context.
- Only current objects (TransformFeedback, VertexArray) should be
  affected by this.

Change-Id: I621c9fa45a951db5634616884cf57d5cb21d9bda
Reviewed-on: https://swiftshader-review.googlesource.com/4748
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added 32 bit integer output types

As long as there's no floating point arithmetic, 32 bit integer
types are computationally equivalent to 32 bit floating point.

Change-Id: I5ab19da440f52617a9bc64dff6fcaf8eff796aeb
Reviewed-on: https://swiftshader-review.googlesource.com/4717
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed mask related state queries

Mask queries could return negative values when only positive
values are accepted, so a clamp was added to prevent returning
negative values.

Change-Id: Ib151573fff54604567b83736163b8fe748c749f8
Reviewed-on: https://swiftshader-review.googlesource.com/4743
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added state query for immutable levels

Added immutable levels info to Texture and added the query.

Change-Id: I900a3c433dcc63b8113b1f623da3518c00680e16
Reviewed-on: https://swiftshader-review.googlesource.com/4751
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed read buffer and draw buffers

Specifying a read buffer or draw buffers was set on the context
instead of being set on the Framebuffer object, which led to
multiple Framebuffer objects wrongly sharing this state.

Change-Id: I9d137c52f50e58a48b95f7ed9a44b4dad275e710
Reviewed-on: https://swiftshader-review.googlesource.com/4745
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Implemented missing Transform Feedback queries

Added missing implementations for binding/start/size
related queries for TransformFeedback objects.

Change-Id: Iebfebdc840764755a74d4a3753f72eceb1e6c86e
Reviewed-on: https://swiftshader-review.googlesource.com/4747
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added version query

Implemented version query and removed a few unnecessary
UNIMPLEMENTED) calls.

Change-Id: I29bb53a8f8083a1b6fb091916dd156f47aac920c
Reviewed-on: https://swiftshader-review.googlesource.com/4754
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Implemented GL_SAMPLER_BINDING query

Sampler objects already exist, only the query was missing.

Change-Id: Iea4a65ee4af149a33b262eba4fc0d6256775d1e1
Reviewed-on: https://swiftshader-review.googlesource.com/4746
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Removed some unnecessary instructions from programs

Removed a few unnecessary/bad instructions from PixelProgram and
VertexProgram. Also added the proper implementation for printing out
a shader instruction that includes indexing an array with a uniform.

Change-Id: Icd37dd4f70419874bb65c54438409b8b9c3ee836
Reviewed-on: https://swiftshader-review.googlesource.com/4753
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added uniform buffer queries

Implemented binding/size/start related queries for uniform buffers.

Change-Id: I9d36c92201a7f0df86b1d882ca6d9f04b372bad6
Reviewed-on: https://swiftshader-review.googlesource.com/4750
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed internal format queries

A few things were missing in internal format queries
- GL_RGB and GL_RGBA are renderable formats
- Integer types have no multisampling
- If bufSize is 0, we should not write to the params output

Change-Id: If6ba2f28b368e780eca8e89ef033deacf9cc523b
Reviewed-on: https://swiftshader-review.googlesource.com/4752
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed texture storage types

Added/fixed missing/bad storage texture types.

Change-Id: I0f489fbd21569114fe30d7291fb718de09cd8974
Reviewed-on: https://swiftshader-review.googlesource.com/4749
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix compile warnings.

Change-Id: I95aff944b1d38c297b3ece475717db4c77b3274d
Reviewed-on: https://swiftshader-review.googlesource.com/4736
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix attempting to load libX11 when rendering headless.

Bug 26776258

Change-Id: I326e76d2650b3992835d74baea159b13f14b2e3e
Reviewed-on: https://swiftshader-review.googlesource.com/4720
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix Android master build.

OpenGL ES 3.0 entry functions are exported in the exports.map version script,
but the source file defining them was not being compiled (ES3 support is still
disabled).

Change-Id: I5e42082304beb2b37de2bcc7ffcf3b2fc65ecc7d
Reviewed-on: https://swiftshader-review.googlesource.com/4732
Reviewed-by: Keun Soo Yim <yim@google.com>
Reviewed-by: Greg Hartman <ghartman@google.com>
Tested-by: Keun Soo Yim <yim@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Disable LLVM's use of __DATE__ and __TIME__ macros.

Timestamp macros make the build unreproducible. This is of particular concern
to Android, but since LLVM only uses them for command line operations which
we don't need at all, they can be disabled on all platforms.

Bug 27079084

Change-Id: I2c4c3dcd06feb3a64936e70ca1535f5a12816e95
Reviewed-on: https://swiftshader-review.googlesource.com/4730
Reviewed-by: Keun Soo Yim <yim@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Refactor texture coordinate addressing.

Unify address() and addressW() by introducing a new addressing mode.

Change-Id: I09f9cbbe7800cfd5ef737322d680327aeddd27f1
Reviewed-on: https://swiftshader-review.googlesource.com/4714
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fix array texture LOD computation.

2D array textures use 2D LOD calculations, not 3D.

Change-Id: I0ce834bc4afb63dfeba3d9662105ffdaa07028da
Reviewed-on: https://swiftshader-review.googlesource.com/4716
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

2D array filtering crash fix

2D array textures aren't supposed to filter between layers and the
computation used in the filtering code is meant to work with 3D
textures, not 2D array textures. The 2D array textures now use the
2D texture path instead of the 3D texture path to solve this issue.

Change-Id: Iea8fcfe67cce7ae70e39081af07e67fa59b268ff
Reviewed-on: https://swiftshader-review.googlesource.com/4690
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix reference counting of texture images.

- Only unbind (orphan and release) images when the texture destructs.
- Let images hold just one reference to the parent texture.
- Check if textures and images only reference each other and garbage collect.

Bug 26851951

Change-Id: I2b0bcc283bf545d948e91288c531eac7cc14d122
Reviewed-on: https://swiftshader-review.googlesource.com/4711
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Add utility functions for reference counting.

Bug 26851951

Change-Id: I5494d61927eb4c1faff320aa7cd6cebe81800f29
Reviewed-on: https://swiftshader-review.googlesource.com/4712
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Refactor Image creation.

Customize construction for each use case.

Bug 26851951

Change-Id: Ic10166bbfeaf11e800fec2a6470446b76e49b825
Reviewed-on: https://swiftshader-review.googlesource.com/4710
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Use gl::Object to reference count egl::Image.

Bug 26851951

Change-Id: I5b594bdd34e6fa1074d5439ee2c09f6731839dee
Reviewed-on: https://swiftshader-review.googlesource.com/4534
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix OpenGL ES 1.1 regression.

Change-Id: I0660f69ea463a117d950e85bc94facb8292a069f
Reviewed-on: https://swiftshader-review.googlesource.com/4713
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Vertex Array Object crash fix

Vertex array objects are not allocated when generated,
but only when bound, so it's legal to have a null
vertex array object internally.

Change-Id: Ib28a388939e285425c09cfbc9f4efef3f4a8cead
Reviewed-on: https://swiftshader-review.googlesource.com/4700
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Enable klp-emu-dev google x86 to build swiftshader libraries

The name for google image is "google_sdk_x86" on older Android versions.

Change-Id: If1e9cb368284b91787badf329e558af5d0b9042c
Reviewed-on: https://swiftshader-review.googlesource.com/4692
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Check for GL object leaks at termination.

Change-Id: I8215fabe92d11f0f28cae9ffadd8c48a3fbf1f27
Reviewed-on: https://swiftshader-review.googlesource.com/3890
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed binding offsets for uniform and transform feedback buffers

There was some confusion between buffer mapping and size and offset
buffer binding arguments, which are distinct, but were represented
by the same Buffer class members. Added OffsetBindingPointer to solve
the issue and removed setOffset/setSize from the Buffer class, which
should not have existed in the first place (only the mapRange/unmap
functions should be allowed to modify these values, for now).

Change-Id: Iacecd17cfb90d0a229d9edf62a463c8acf31f07a
Reviewed-on: https://swiftshader-review.googlesource.com/4590
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Uniform block declaration

A few aspects of block declaration are improved upon here:
- Block definitions are computed and stored for later use.
  The data stored are the block member types and a map to
  convert from register offsets, based on the internal
  memory layout, to the std140 layout.
- Declaration of block members is possible. When a block
  member is declared prior to the entire block being
  declared, OutputASM::declareUniform() will first declare
  the whole block and return the index of the block member.
  If the block member is part of an already defined block,
  the function declares no new variables and returns the
  block member's register index.

Change-Id: If1368bc8de20a0f86169361d76858c3f3e34bb07
Reviewed-on: https://swiftshader-review.googlesource.com/4632
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Swiftshader changes for HAL_PIXEL_FORMAT_YCbCr_420_888

Bug: 26822256

Change-Id: I2d974e1170847786369797d8e9b10ba4ad3663e0
Reviewed-on: https://swiftshader-review.googlesource.com/4660
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Greg Hartman <ghartman@google.com>

Removed double argument() calls

Some calls to the argument() function were made twice
because the emit() function didn't know what index to
use for each individual input. I added the function
arguments to the emit() function in order to solve that.

WebGL conformance tests pass.

Change-Id: I548b72cadf7247afd103b6be2ddfeaf39a995025
Reviewed-on: https://swiftshader-review.googlesource.com/4575
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Uniform block related fixes

- The rowMajor qualifier should only be set for matrices
- Shared and std140 layouts are always considered active
- Fixed registerSize() for uniform blocks

Change-Id: Id0ccd4f1f1c3342915643d87e166234e61b83f4f
Reviewed-on: https://swiftshader-review.googlesource.com/4631
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Passing uniform buffers to the vertex/pixel programs

This cl contains the necessary changes to make uniform buffers
usable in shaders. A few things to note:
- Uniform buffers can be set, but nothing will attempt to access
  them in this cl.
- While the 'index' of uniforms is expressed in terms of registers,
  uniform buffer 'index' is expressed in bytes in both PixelProgram
  and VertexProgram. This is necessary because of packing which can
  potentially put some variables in the middle of registers.
  Technically, std140 always packs variables in multiples of byte4,
  but other future layouts may not, so using bytes as the unit is
  more future proof.
- The above mentioned 'index' will have to be computed in OutputASM
  and extra operations will need to be added (to fetch a row from a
  row major matrix, for example).

Change-Id: I636cc4bdc6fe90d6f5697e735f4288f48d18a75b
Reviewed-on: https://swiftshader-review.googlesource.com/4151
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Uniform buffer array register fix

Register indices were only set for the first instance of the array
when the uniform block array was present in both the fragment and
vertex shaders, so this code takes care of the array case.

Change-Id: I8a98470fedcc67bdc5edfd3b852470f5f911d610
Reviewed-on: https://swiftshader-review.googlesource.com/4630
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Implement glGetPointerv().

Bug 26794307

Change-Id: I0aa175f091550d544a33503b602c191353e7a1c5
Reviewed-on: https://swiftshader-review.googlesource.com/4606
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix attribute size queries.

Bug 26794307

Change-Id: I66a440221435e63574c5da4204a9d2b00ece73f4
Reviewed-on: https://swiftshader-review.googlesource.com/4604
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Detect all texture sampling shader instructions.

Change-Id: If557db7db89659e6c2b043b21e5712fb34eafd8d
Reviewed-on: https://swiftshader-review.googlesource.com/4561
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Remove unnecessary friend class declarations.

Change-Id: Ida83136a083642bd6cd651c4cb506723e8ac9a41
Reviewed-on: https://swiftshader-review.googlesource.com/4570
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Make vertex registers members of routine classes.

Bug 22652760

Change-Id: I698ce910ee4302178d7235fa316aaa2b268e71a8
Reviewed-on: https://swiftshader-review.googlesource.com/4560
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Move loop register usage to relative addressing.

Bug 22652760

Change-Id: I50c6935bac91f586953b0dd2abd0d2a859468ee1
Reviewed-on: https://swiftshader-review.googlesource.com/4579
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Move parameter reading to a prototype constructor.

Bug 22652760

Change-Id: I317275cd2c15012da3a859735409af07ea9b2923
Reviewed-on: https://swiftshader-review.googlesource.com/4559
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Eliminate redundant register set argument passing.

Bug 22652760

Change-Id: If6bf124c3218847ecc4af0ae16102452a6b344d9
Reviewed-on: https://swiftshader-review.googlesource.com/4558
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Derive VertexRoutine from Function<>.

Bug 22652760

Change-Id: I48e9e1f3ff677429eff1aea2f80b1e384a537a14
Reviewed-on: https://swiftshader-review.googlesource.com/4557
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix glBindVertexArray() compilation regression.

Change-Id: I7da54053b3be31b4388dd9c0f4d89298e656bee2
Reviewed-on: https://swiftshader-review.googlesource.com/4556
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Remove unused return value.

Change-Id: I99731b6697a4ae92b1d04c8a8d895a0cf19d580c
Reviewed-on: https://swiftshader-review.googlesource.com/4545
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Remove redundant shader instructions.

Bool to int and int to bool also work for unsigned int.

Change-Id: I31669d8754a718096381609d13c2e9668599efe5
Reviewed-on: https://swiftshader-review.googlesource.com/4070
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fix Clang warnings.

Change-Id: I9630093a14d0c1b2b6dc60ffb5866c7d2eaf4f02
Reviewed-on: https://swiftshader-review.googlesource.com/4552
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix returning an opaque handle for eglGetCurrentDisplay().

Change-Id: If7524c5245951ed87bcb8caacda2264db0875dad
Reviewed-on: https://swiftshader-review.googlesource.com/4554
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Added some uses of FRAGMENT_UNIFORM_VECTORS and VERTEX_UNIFORM_VECTORS

Replaced a few instances of 224 and 256 that were actually used to
represent FRAGMENT_UNIFORM_VECTORS and VERTEX_UNIFORM_VECTORS.

This cl should not change any behavior.

Change-Id: I4b82341f32223fcee559aaf70df2ee83c9936d11
Reviewed-on: https://swiftshader-review.googlesource.com/4547
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Move parameter reading to routine constructor.

Bug 22652760

Change-Id: If2b41c4d3b24f4b8a9d9dd805a9ab3ce724b7726
Reviewed-on: https://swiftshader-review.googlesource.com/4553
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Derive Rasterizer from Function<>.

Bug 22652760

Change-Id: I1a8ff978fdc7ad795e469218a931523d624e7cde
Reviewed-on: https://swiftshader-review.googlesource.com/4546
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix Clang errors on Linux.

Change-Id: I8bc812cd6c25a60dc73abc2177e8eb4a3841af21
Reviewed-on: https://swiftshader-review.googlesource.com/4551
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Make Function arguments type-safe.

Change-Id: I3d4262ea4be0c7b1128b2ca410e985cc6f58c9c9
Reviewed-on: https://swiftshader-review.googlesource.com/1970
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Make Function variadic and take a function signature.

Change-Id: If36ea6e74311f54bb4c2b0bc1b5b7ccd0e97d74b
Reviewed-on: https://swiftshader-review.googlesource.com/4548
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Disallow assigning to an RValue.

Change-Id: I539fcaa5b7853ac618f3d27027d3357bc6e620ba
Reviewed-on: https://swiftshader-review.googlesource.com/1960
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Ported Angle's std140 encoder to SwiftShader

Added Angle's std140 encoder to properly compute sizes and
offsets of uniform blocks for the std140 standard. All
layouts currently use std140 ('packed' and 'shared' are
implementation dependent, so we can choose to have them be
the same as std140).

All uniform blocks made of simple types or arrays of simple
types are properly interpreted by this code.

Structs are still TBD.

Change-Id: I191d7f313db5d409715b1101ea70903a7b958726
Reviewed-on: https://swiftshader-review.googlesource.com/4525
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Program cleanup

Working on uniforms, I realized that there was a large
amount of code duplication in the applyUniform* functions,
so I create a basic applyUniform() to contain common code
between all these functions, which reduces the size of
Program.cpp by about 275 lines, or about 10% of that file.

Change-Id: I0f013821e1cc8f507bb4d6829b0097fc41420e6d
Reviewed-on: https://swiftshader-review.googlesource.com/4527
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>