Implement several fixed-point entry functions.

Change-Id: I7a156a33a6021bc871a902a2b9d050eeaf166fe9
Reviewed-on: https://swiftshader-review.googlesource.com/3801
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implement missing vertex element functions.

Change-Id: I54c54838b7140023d902d5cb615eb8509eb6e23a
Reviewed-on: https://swiftshader-review.googlesource.com/3800
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implement missing state and queries.

Change-Id: I4858980fc32df435ffc0fc0917905116bea54aa8
Reviewed-on: https://swiftshader-review.googlesource.com/3790
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Validate vertex element sizes.

Change-Id: I03fabec6a92ef058aa2968418755aca079598cfe
Reviewed-on: https://swiftshader-review.googlesource.com/3781
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Validate glOrtho() and glFrustum() parameters.

Change-Id: Ib041b2c412ea9db7a951e4eea24b7f27d8621cd0
Reviewed-on: https://swiftshader-review.googlesource.com/3780
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Renamed boolean state variables and setters.

Change-Id: Ied1be6434a356ec7315df9d728dc424961f44fd0
Reviewed-on: https://swiftshader-review.googlesource.com/3770
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Support homogeneous coordinates with w != 1.

Change-Id: Ie5552f7b743ac488a10ef86042088181aa5b797a
Reviewed-on: https://swiftshader-review.googlesource.com/3763
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implement texture environment src, operand, and color.

Change-Id: I8c683a783f0a7f8a82206de77ae9d139f4b1bb10
Reviewed-on: https://swiftshader-review.googlesource.com/3762
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Support matrix stack overflow/underflow errors.

Change-Id: Ie3caee1128c8227397a74378fcefdf9e128fc6bf
Reviewed-on: https://swiftshader-review.googlesource.com/3761
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Use the gce_x86_tablet config

Change-Id: Ifd5f0bcc466f0ca7815f92285fa8bbd2d3ae2d8d
Reviewed-on: https://swiftshader-review.googlesource.com/3810
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Remove const modifiers that break implicit operator= generation.

This is needed because the object is included by value in STL containers.

Change-Id: I4008aa3b733bdfc6c045a7622a0e40d7eb61b0bf
Reviewed-on: https://swiftshader-review.googlesource.com/3811
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Uniform buffer related fixes

- Added an actual offset, in registers, to the Uniform structure to
  take into account that types can have different register sizes.
- Fixed the array check in OutputASM::declareUniform() so that it
  doesn't make an array of blocks when declaring a member as an
  array in the default uniform block.
- Fixed arrayStride and matrixStride in the BlockInfo constructor.
- Fixed memberUniformIndexes to use uniform index instead of
  register index.

Change-Id: Id8ba23b5fef71c772bb45a45bb897ca5e2fae385
Reviewed-on: https://swiftshader-review.googlesource.com/3750
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Support for new texture function names

There are explicit checks for texture function names in OutputASM,
which fail in ES3 because new function names are available, so some
of the new function names have been added to the checks.

Change-Id: I7ec8302a31c02500514ede4e36610dca1dafd235
Reviewed-on: https://swiftshader-review.googlesource.com/3752
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Skip half-pixel shift on pre-transformed coordinates.

Bug 22624951

Change-Id: Ibda5f528212c9a8d503d8d6366cd7a42cd832c89
Reviewed-on: https://swiftshader-review.googlesource.com/3742
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Move back-tranform of pre-transformed vertices to postTransform.

Bug 22624951

Change-Id: Ib8dfda6ed983f385a236b014d9b635a0c343071f
Reviewed-on: https://swiftshader-review.googlesource.com/3741
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix ETC1 decoding writing outside of internal buffer.

Bug 22632766

Change-Id: Ib2fccdd498a6da43af7bb945179b278026cdba18
Reviewed-on: https://swiftshader-review.googlesource.com/3744
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Uniform blocks implementation

- Added support for uniform blocks in OutputASM::declareUniform
- Added basic implementation of Program::applyUniformBuffers()
  to be completed later on when uniform buffers are implemented

Change-Id: I919b59d4557bb10bb302e6b6bd0ada79553ca8bb
Reviewed-on: https://swiftshader-review.googlesource.com/3651
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Splitting PixelRoutine into PixelProgram and PixelPipeline

This cl splits PixelRoutine into 2 specialized classes:
PixelProgram and PixelPipeline.
In this cl:
- Moved all specialized behavior of PixelRoutine into the
  PixelProgram and PixelPipeline classes.
- Inverted hierarchical dependency between PixelRoutine and
  QuadRasterizer. QuadRasterizer is now the base class.
- Added a check to PixelProcessor::routine() to either create
  a PixelPipeline object or a PixelProgram object.
- Moved a few interpolation related utility functions from
  PixelRoutine down to QuadRasterizer.
- Added Registers hierarchy. PixelProgram specific Registers
  and PixelPipeline specific Registers are now mutually
  exclusive.
- Made the quad functions virtual
- Added a few virtual functions (setBuiltins, ps, alphaTest,
  rasterOperation) for Program/Pipeline specific implementations

Bug 20257503

Change-Id: I6abe536a5521d9842f757a8bbb52e3947e3c9250
Reviewed-on: https://swiftshader-review.googlesource.com/3634
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Add an attach debugger dialog.

Bug 15759123

Change-Id: I363524a191d319e03ce2b874cfc853c7330b684f
Reviewed-on: https://swiftshader-review.googlesource.com/3735
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Reimplement Direct3D GetFunction().

Copied from old Shader::GetFunction().

Bug 22533227

Change-Id: I587a4112bc97f75c010b6f572f8f4388d5af9225
Reviewed-on: https://swiftshader-review.googlesource.com/3734
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fix D3D9 shader opcode mapping.

Bug 22533227

Change-Id: Idf969cd81fae9f5bc5f3da147ae84fe597d3afa7
Reviewed-on: https://swiftshader-review.googlesource.com/3733
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Adapt D3D9 to Renderer changes.

Bug 22533227

Change-Id: Ib1b17bcace85bc6204589a48c65f60c94ffbe5cc
Reviewed-on: https://swiftshader-review.googlesource.com/3732
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Add the D3D9 project to the solution.

Bug 22533227

Change-Id: I7dd953eecb169cb471aa9c1830f91b06f8bcc7ac
Reviewed-on: https://swiftshader-review.googlesource.com/3731
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Add back the D3D9 code from before the April 2014 code dump.

Bug 22533227

Change-Id: Ib669fcd6a644c79b3a9e8f5dcf7da278d75cefef
Reviewed-on: https://swiftshader-review.googlesource.com/3730
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Framebuffer Layer query

Added implementation for querying
GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LAYER in
GetFramebufferAttachmentParameteriv.

Change-Id: Ib25ba51bf68c9d979f80cc65ba7059366b5f1ae4
Reviewed-on: https://swiftshader-review.googlesource.com/3541
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added location to Attribute

Program now uses Attribute location.

Change-Id: I005d64509e4b1e2dd977db38b6b2c41d6ba7ddef
Reviewed-on: https://swiftshader-review.googlesource.com/3722
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added missing binary related functions to Program

The spec for GetProgramiv didn't mention anything about
PROGRAM_BINARY_LENGTH, but looking at the OpenGL ES 3.0
spec, section 2.11.4 - "Program Binaries", we have:

"The number of bytes in the program binary can be queried
by calling GetProgramiv with pname PROGRAM_BINARY_LENGTH"

Change-Id: Idf652fec34fa1f3cce6cce0e7302ab8d47a6cf74
Reviewed-on: https://swiftshader-review.googlesource.com/3611
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Changed default buffer usage type

dEQP was expecting default buffer usage to be GL_STATIC_DRAW
instead of GL_DYNAMIC_DRAW, so it was changed accordingly.

Change-Id: I5c9e31fc0791955fd32333c1479e76fbc79951a1
Reviewed-on: https://swiftshader-review.googlesource.com/3631
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fixed Framebuffer attachment checks

Some checks in Framebuffer related functions were still
ES2 only. Made some modification to fix the checks for ES3.

Change-Id: Iaef6133179ea830dd599a5d66bc9698032085569
Reviewed-on: https://swiftshader-review.googlesource.com/3690
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

fwidth fix

Fixed copy-paste error in FWIDTH function

Change-Id: I7562aa29408987839334aa13c7461f69d8ae6a19
Reviewed-on: https://swiftshader-review.googlesource.com/3728
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Non square matrices related fixes

- Implemented proper VariableRegisterCount (we were using row
  count instead of column count to get the number of registers)
  and VariableRegisterSize.
- Matrix to matrix copies now clear the correct rows of the
  destination matrix when needed
- Added registerSize helper function to type to help clarify
  this for matrices.
- Added missing member initializations in TType constructor

Change-Id: Ic880815515c7d12ad12e44f1392aa6892caa953f
Reviewed-on: https://swiftshader-review.googlesource.com/3718
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

LOD should be rounded to int

The queries should round, rather than truncate, LODs to int.

Bug 20724899

Change-Id: I86ddc724545abb80687eb5132cdf8ddd410ee2d1
Reviewed-on: https://swiftshader-review.googlesource.com/3638
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Handling proper sampler types

Some int/uint/array types weren't properly handled by
the Program class yet, so the missing types were added.

Change-Id: I487bbbdcbf798c7430535745386139632346013f
Reviewed-on: https://swiftshader-review.googlesource.com/3610
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Make the debug messages more descriptive

Change-Id: I43f1675a1c6059cc86eaf84ac768242cfc80b88f
Reviewed-on: https://swiftshader-review.googlesource.com/3652
Tested-by: Greg Hartman <ghartman@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Forward declare struct Constants to fix a compile error.

This was breaking the Android build and didn't appear to be used in the code.

It was introduced with I0fe062ea826b73b2bdf28ad3ed6e72e51c576840

Change-Id: Ic2a00c3264263e5608903ee7764f9c8dd8fb2c2a
Reviewed-on: https://swiftshader-review.googlesource.com/3662
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implementation of glLogicOp

Bug 22375329

Change-Id: Id6684e33bf3cd37fce48e7607e6a65fe64309f72
Reviewed-on: https://swiftshader-review.googlesource.com/2764
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Maxime Grégoire <mgregoire@google.com>

Replaced some hardcoded constants

Replaced values that matched with
FRAGMENT_UNIFORM_VECTORS or
VERTEX_UNIFORM_VECTORS where appropriate.

Change-Id: I64a72b6f30a8a553ea44c268e757ee529cff59fd
Reviewed-on: https://swiftshader-review.googlesource.com/3672
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Minor unary math cleanup

The unary math related functions were already
added to TParseContext, but a few sections in
the parser hadn't been converted yet.

Change-Id: Idbc96e6e91acce28310f391a50d219e39dfc185b
Reviewed-on: https://swiftshader-review.googlesource.com/3668
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Completing the "length()" intrinsic function implementation

The implementation of the length() function was already added
to TParseContext::addFunctionCallOrMethod() in a previous cl,
but it was still unused because addFunctionCallOrMethod() was
always called with the 3rd argument as nullptr. This cl adds
the missing code required to get the length function working.

Change-Id: I3339ae8b60f5f577caa0a39f88c6ed0c626879b2
Reviewed-on: https://swiftshader-review.googlesource.com/3641
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Add commands to the Andriod build log.

Change-Id: I045c637eda7449baeeebc0b9b863e8a9af363ec6
Reviewed-on: https://swiftshader-review.googlesource.com/3660
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Greg Hartman <ghartman@google.com>

Treat rebinding the same image as a noop.

Bug 22321923

Change-Id: Ib32137a0ac940ab40d375e928e3334b50387c5d5
Reviewed-on: https://swiftshader-review.googlesource.com/3667
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Greg Hartman <ghartman@google.com>

CreateSampler should create a Sampler object by default

It should be possible to query the default parameters
of a Sampler created with glGenSamplers, so
checkSamplerAllocation() was added to make sure a
created sampler was associated to a Sampler object
where appropriate.

I also cleaned up the API a little to share validation
functions.

Change-Id: I55d95c6663d41e2566b24eb76a431dd4b4da61e3
Reviewed-on: https://swiftshader-review.googlesource.com/3637
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Invariant keyword support

Added support for the invariant keyword in the parser.
Also made sure all in/out types were handled properly
in OutputASM.cpp.

Change-Id: I40f0bc9caf5bccc691aa60dfaa90bed5d1d7d238
Reviewed-on: https://swiftshader-review.googlesource.com/3663
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Completed conversion of TSourceLoc into a struct

TSourceLoc was defined as an int, but is meant to be
used as a struct to carry all the information provided
by the parser, so the conversion was made in this cl.

Change-Id: I6015d11aafda96914ec7b2c37883ffbc963a08fe
Reviewed-on: https://swiftshader-review.googlesource.com/3664
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Small named variable cleanup

- Replaced a few lines of codes in the parser by getNamedVariable
- Deleted unused commented out code in the parser

Change-Id: I34db0c971140a39cd91a32c05ebf866d5fca795b
Reviewed-on: https://swiftshader-review.googlesource.com/3670
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Ternary selection cleanup

Moved the ternary selection code to TParseContext
where checks were added to make sure arrays and
structs can't use it.

Change-Id: If3c007820870276cdf540005e095d89d54949bc4
Reviewed-on: https://swiftshader-review.googlesource.com/3669
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Save a log file of build commands and errors

Change-Id: I7ad7b5db84e2c33b0340943f7f2b13403e777383
Reviewed-on: https://swiftshader-review.googlesource.com/3587
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Greg Hartman <ghartman@google.com>

Transform feedback varyings gather operation

A few small things were missing to get the transform
feedback varyings gather operation to work properly:
- A basic implementation of
  Program::gatherTransformFeedbackLinkedVaryings()
  has been made as a first step.
- transformFeedbackBufferMode is now initialized in
  the constructor
- transformFeedbackLinkedVaryings are now properly
  reset

Also:
- Removed useless DirectX semantic information from
  the LinkedVarying class
- ++it is more efficient than it++ in a loop, because
  it++ create a temporary object to return the
  original state of the iterator, so I made the
  changes where applicable in Program.cpp.

Change-Id: I78513f185ef5ef1a17448606b5c598c22d0d217e
Reviewed-on: https://swiftshader-review.googlesource.com/3621
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added more GLES 3.0 specific cases in GetFramebufferAttachmentParameteriv

These new entries will need to be updated once more internal
formats are available, but this will do for now.

Also added the possibility to query the Framebuffer 0 for GL_BACK,
GL_DEPTH and GL_STENCIL, as is allowed by OpenGL ES 3.0.

Finally, added a missing break in the GL_DEPTH_STENCIL_ATTACHMENT case.

Change-Id: Ifc32cc306c762ff58f9a9fe6608f7c19d3901c31
Reviewed-on: https://swiftshader-review.googlesource.com/3632
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Proper handling of Interface Block indexing

This is a first step in handling interface blocks
properly by allowing indexing of blocks to be handled
properly. This does not include any interaction with
the Program, which will come in a following step.

No WebGL tests were injured in the making of this cl.

Change-Id: I575b08502f7f4dd63ca7b57f2ca0630367adf0de
Reviewed-on: https://swiftshader-review.googlesource.com/3589
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added more info to ES3 only errors in parser

Added the same info as Angle's for ES3 only errors.

Change-Id: I2f11b34b06f8e1cc1b0a200d568c709ca35469ab
Reviewed-on: https://swiftshader-review.googlesource.com/3639
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Moved function creation code from glslang.y to TParseContext.

Added TParseContext::addFunctionCallOrMethod() to move function
creation functionality out of glslang.y.

Change-Id: Ia23e8c2490ba9d2bb1fcd00a1ef06eab5cf60b80
Reviewed-on: https://swiftshader-review.googlesource.com/3640
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Implement alpha testing.

Change-Id: I0fe062ea826b73b2bdf28ad3ed6e72e51c576840
Reviewed-on: https://swiftshader-review.googlesource.com/3635
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Return correct OpenGL ES version

Since we can create OpenGL ES 3.0 contexts locally now,
we should also be able to retrieve the correct version.

Change-Id: I9154869ddea5951946c8e23e59a00beb042fca8c
Reviewed-on: https://swiftshader-review.googlesource.com/3633
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Proper block size computations

Interface blocks can now properly return their size from
TType::getElementSize() or TType::elementRegisterCount().

Change-Id: Ief69163088839784cf347160bb49fd64f1a2a395
Reviewed-on: https://swiftshader-review.googlesource.com/3584
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Better encapsulation for TParseContext

Changed 15 public members of TParseContext
so that they are now private and added the
appropriate setters/getters, along with the
required code changes in the parser.

Change-Id: I0a3ea67540d165e9837a3fe8e64fda4843a3cf96
Reviewed-on: https://swiftshader-review.googlesource.com/3543
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Implement user clip planes.

Bug 22123818

Change-Id: Icd26392008ce50ad822c2ab961eeb86117ca8544
Reviewed-on: https://swiftshader-review.googlesource.com/3626
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Use the projection matrix to scale z.

Bug 22123818

Change-Id: I2c72e221d9d9410c32875188a5edea6ce7310f20
Reviewed-on: https://swiftshader-review.googlesource.com/3625
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Eliminate the half-pixel NDC shift.

Bug 22123818

Change-Id: If9bf78d6b44ccd0662676c8896837cca8829efc8
Reviewed-on: https://swiftshader-review.googlesource.com/3624
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Removing the EGL_OPENGL_ES3_BIT from Android entirely

Bug 21323928

Change-Id: I51addf7a354d3abac34807d60e8dc5fc67dddd1a
Reviewed-on: https://swiftshader-review.googlesource.com/3623
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

glGetInternalformativ implementation

Change-Id: Ic8e80810ee6846b66543e6a5dbdae044fdd02a99
Reviewed-on: https://swiftshader-review.googlesource.com/3600
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Proper usage of pixel pack buffer

The pixel pack buffer was ignored, but should be
used whenever it is set when doing a glReadPixels.
When this is the case, pixels becomes an offset.
From the GLES 3.0 spec, section 4.3.1, subsection
"Placement in Pixel Pack Buffer or Client Memory":

"If a pixel pack buffer is bound, data is an offset
into the pixel pack buffer and the pixels are
packed into the buffer relative to this offset;
otherwise, data is a pointer to a block of client
memory and the pixels are packed into the client
memory relative to the pointer"

WebGL conformance tests passed.

Change-Id: I7539f1ce705cfd2072ed679815676c0b18887272
Reviewed-on: https://swiftshader-review.googlesource.com/3604
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed Program::getAttachedShaders

It was possible to have "count" larger than "maxCount"
since "total" was incremented regardless of whether or
not the shader was added to the "shaders" output
argument. Simplified the function to fix it.

Change-Id: I403e6c100580fb8f5f1c6fe170af1a796e936828
Reviewed-on: https://swiftshader-review.googlesource.com/3605
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added missing validation to CopyBufferSubData

Missing validation for mapped buffers and overlap
was added to CopyBufferSubData.

Change-Id: If1f3f9901f039f5737d41ca46d98ce4c188274d6
Reviewed-on: https://swiftshader-review.googlesource.com/3603
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

glBufferSubData fix

According to the OpenGL ES 3.0 spec
(section 2.9.2 Creating Buffer Object Data Stores)

"If data is NULL, then the contents of the buffer
 object’s data store are undefined."

So the function should behave the same way, perform
the same checks, but simply skip the copy.

Change-Id: If49e37a8e836618389e105b5377ff183ac3e3107
Reviewed-on: https://swiftshader-review.googlesource.com/3601
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added proper size/offset checks

glTexSubImage3D and glCopyTexSubImage3D were missing
some validity checks for size and offset parameters.

Change-Id: Iff1aa034318c1fc58f9bb433c61bd8623493604a
Reviewed-on: https://swiftshader-review.googlesource.com/3602
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

glProgramParameteri API implementation

This function is simply used to notify the
program that the binary may be queried later
on by the application. For now, this hint is
stored in the program, but otherwise ignored,
as querying the binary is still unimplemented.

Change-Id: Ie59f21d7b803111ce6091718b84ecfbe78c03bdd
Reviewed-on: https://swiftshader-review.googlesource.com/3545
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added Primitive Restart Index and Rasterizer Discard to IsEnabled

Change-Id: I63f7324139ff4f337996c14380ef2862dbd8465b
Reviewed-on: https://swiftshader-review.googlesource.com/3547
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix for glGetActiveUniformBlockiv

glGetActiveUniformBlockiv was using the current program
instead of using the program passed as an argument to
the function, causing it to misbehave.

Change-Id: I69b640b20793bd8e7e0c4142a1ff74d0ea796747
Reviewed-on: https://swiftshader-review.googlesource.com/3583
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Fix the light position transformation.

OpenGL transforms the light position by the model-view matrix
at the time when that position is specified.

Bug 22124687

Change-Id: Ia6bb711c9eb20348faec45c46e45ee9f6ef92112
Reviewed-on: https://swiftshader-review.googlesource.com/3524
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implement float4 transform.

Bug 22124687

Change-Id: I88ea87bbf7785d61a2ca61db2855d07c0347f719
Reviewed-on: https://swiftshader-review.googlesource.com/3582
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Implement materials and lights.

Bug 22124687

Change-Id: Ic8a458962e370f372c2e97052c9c86f9b5c6dede
Reviewed-on: https://swiftshader-review.googlesource.com/3511
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fix support for colorbuffer formats in the texture env.

Bug 21766174

Change-Id: Id53882a7738fab8669d355fd2f32e420a93cbae6
Reviewed-on: https://swiftshader-review.googlesource.com/3500
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix texture sampling buffer overrun.

Sampling byte4 data currently reads 8 bytes for unpacking purposes.
Allocate 4 more bytes to prevent reading outside the image, even
though it's unused data.

Bug 21935792

Change-Id: I162fb3f3575131cedb008f82ef5170e773719e41
Reviewed-on: https://swiftshader-review.googlesource.com/3572
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Remove image size rounding to 4x4 multiple.

Bug 21935792

Surface::size() already takes into account that compressed images
need their dimensions rounding up to whole 4x4 tiles.

Change-Id: Ie6b7b5d23294e8d3c85b3b362670cfe0c569585d
Reviewed-on: https://swiftshader-review.googlesource.com/3571
Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix some warnings

I sheilded a MSVC pragma, silenced some classes of warnings.

One of the classes involves an overload that hides a member function. I filed a
bug to make certain that this isn't masking a coding error:

https://b.corp.google.com/issues/22117892

Change-Id: I7090cddc78880c9ee7814aecc72cc107003dfede
Reviewed-on: https://swiftshader-review.googlesource.com/3483
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Greg Hartman <ghartman@google.com>

Moving format conversion functions from aggregate to unary

Change-Id: Icd05628204b831ddeefffaec2274fa6661624740
Reviewed-on: https://swiftshader-review.googlesource.com/3540
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix vertex attribute count constant.

Change-Id: Ic0e4831bf3459d54b51e63ebe50b7394fb54e14c
Reviewed-on: https://swiftshader-review.googlesource.com/3562
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Remove an unused method.

Change-Id: Id212644a19443434ca14f78555e3d159ac4266e8
Reviewed-on: https://swiftshader-review.googlesource.com/3570
Tested-by: Nicolas Capens <capn@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Adding support for GL_DEPTH_STENCIL_ATTACHMENT

ES3 supports set/get for both stencil and depth
attachments simultaneously though
GL_DEPTH_STENCIL_ATTACHMENT, so support for it
was added in FramebufferRenderbuffer and
GetFramebufferAttachmentParameteriv.

Change-Id: I09b077de1f31899a20baacbd651c65dfa9e7fc5d
Reviewed-on: https://swiftshader-review.googlesource.com/3546
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added new GLES3.0 compressed format checks to TexImage2D

Change-Id: I2bfb2072028de66aa89306e51a164ba90bfb9114
Reviewed-on: https://swiftshader-review.googlesource.com/3548
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed crash using uniforms as indices

Uniforms can now legally be used as indices in
OpenGL ES 3.0, so they now have to be handled
properly in the dynamic indexing analysis.

Change-Id: I971aa55edcbc73796c30e0acc99156b513a78b80
Reviewed-on: https://swiftshader-review.googlesource.com/3550
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Added proper transform feedback checks to glDrawRangeElements

It is illegal to start a new draw operation while a transform
feedback is active.

Change-Id: I5ebb01889ce5154162a51f5e6cfbc8431554c879
Reviewed-on: https://swiftshader-review.googlesource.com/3549
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed recursion analysis

Recursion analysis was broken, because assigning
the error value UINT_MAX was then automatically
increased by 1 at the caller site, resulting in
a 0, and recursions would go undetected.

Change-Id: I8ab9990c12d827d8eac2d6084f9170096ad2aef2
Reviewed-on: https://swiftshader-review.googlesource.com/3552
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed infinite loop crash

Writing for(;;) in a shader was crashing because
a NULL condition was dereferenced. Added the
NULL pointer check to fix the crash.

Change-Id: I2be7a4594029c928ff83221f65503636bc28f4a9
Reviewed-on: https://swiftshader-review.googlesource.com/3553
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Used proper getBuffer function

There was a switch/case left that hadn't
yet been replaced by Context::getBuffer,
so I fixed that.

Change-Id: I71bca410322e1cfc130a2753d738c3b64fb271c5
Reviewed-on: https://swiftshader-review.googlesource.com/3544
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Adding unsized arrays to the glsl parser

Unsized arrays declare with an empty [] without
a specified size are now supported properly in
the glsl parser.

Also moved the construction code from the parser
into TParseContext.

Change-Id: Ic7b3efeee51da1a264e26af4d7908e7d2fccebd9
Reviewed-on: https://swiftshader-review.googlesource.com/3520
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Log the switch value when reaching an UNREACHABLE().

Bug 20025568

Change-Id: I37d2c7171e0704b4064e56e8ca8799f930038d87
Reviewed-on: https://swiftshader-review.googlesource.com/3481
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Binary math cleanup

Moved functionality related to binary math
into TParseContext.

No WebGL tests were hurt in the making of this CL.

Change-Id: I51b9aa8f98ceedc4e4a93b4b907d264086157c18
Reviewed-on: https://swiftshader-review.googlesource.com/3512
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Support for @ in the parser

Added support for @ in the parser and
replaced all instances of $N.line by
@N.

Change-Id: I7a18278ee0cd5deb90609508abbda2af656daaa4
Reviewed-on: https://swiftshader-review.googlesource.com/3526
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fix point rendering.

Change-Id: I8262fa4bc527d719680d83bf9a1b8e88bdae07f8
Reviewed-on: https://swiftshader-review.googlesource.com/3514
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Fix light position transformation.

Change-Id: Ia12819357406c6ee98f0af2909d793cb62bfa62f
Reviewed-on: https://swiftshader-review.googlesource.com/3510
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Replacing int by TSourceLoc for lines

Lines should be identified by a TSourceLoc object,
which is currently typedefed to an int, but should
be changed to a struct soon, so making sure the
parser functions can handle the change.

Change-Id: Iaafad862dd1078591757695bf205279e7c4202cf
Reviewed-on: https://swiftshader-review.googlesource.com/3513
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Simplify int4 and float4 types.

Change-Id: Id0d55c1364fc3db05821eb6ef666aed8c5713e31
Reviewed-on: https://swiftshader-review.googlesource.com/3503
Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>

Adding switch case default keywords

This adds switch/case keywords to glsl.
This makes the shaders that include these
keywords compile, but they don't run
properly yet, partly because the "break"
statement only handles loops currently.

Change-Id: I1f52b445e1124ed3931843c46e27ecc1d9ce3d11
Reviewed-on: https://swiftshader-review.googlesource.com/3400
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Adding Interface Blocks to glsl parser

Added code to parse interface blocks and the
corresponding layout qualifiers to the glsl parser.

Change-Id: Idfcbf08f3f877ea9641ae611e6bddd2be1ffb952
Reviewed-on: https://swiftshader-review.googlesource.com/3480
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Fixed some warnings

- Changing "char*" to "const char*" when a
  function can receive string literals
- Removed some unused variables and members
- Fixed some signed vs unsigned comparisons
- Added braces for safety on code like:
  if(...) if(...) ... else ...
  to make it:
  if(...) { if(...) ... else ... }
  otherwise the else is ambiguous
- Reordered some member initializations to
  fit the declaration order in the class
- OutDir must end with a backslash in VS

Change-Id: I903bd7afac882090841da0c0f4ebb30db0a5dd37
Reviewed-on: https://swiftshader-review.googlesource.com/3501
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Addressing a FIXME

I added a FIXME in the code because EvqFragmentOut
hadn't been added yet, since this has now been done,
I can remove the comment to address the FIXME.

Change-Id: I67f4371802eb0e30278b3eaafab238a20798ae69
Reviewed-on: https://swiftshader-review.googlesource.com/3502
Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <capn@google.com>

Uniform Buffers API implementation

Implemented the necessary functions
for the API level implementation of
glBindBufferBase and glBindBufferRange.
Also cleaned up the TransformFeedback
API functions a little for uniformity
with uniform buffers.

Change-Id: Iccc835f175d4e8bc4ee030343936714b7ff224ac
Reviewed-on: https://swiftshader-review.googlesource.com/3030
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Initializer cleanup

Cleaned up the initialer methods in the parser
and added first-class array initializers.

Passes all WebGL tests.

Change-Id: Ia73db8bfd461f36b717444a8ba4c9ec77d1cee36
Reviewed-on: https://swiftshader-review.googlesource.com/3473
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>