Added implementation for Depth and Stencil which currently allocates
Depth and Stencil as 2 contiguous image planes in memory.

Copying to and from depth and stencil planes is now supported which
fixes all failures in:
dEQP-VK.api.copy_and_blit.core.image_to_image.all_formats.depth_stencil
Which were the last remaining failures in:
dEQP-VK.api.copy_and_blit.core.image_to_image

Bug b/119620767

Change-Id: Ie90737c219c70d9c8a68c024ed33292812a3b7f4
Reviewed-on: https://swiftshader-review.googlesource.com/c/23209Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

Added basic support for array layers in Image objects.
This allows allocating the memory for multiple layers,
copying between a 2D image with multiple layers to and
from a 3D image.

Passes all tests in:
dEQP-VK.api.copy_and_blit.core.image_to_image.3d_images.*

Bug b/119620767

Change-Id: I305650ba89f90dcd527b484fc3ed095a309506d1
Reviewed-on: https://swiftshader-review.googlesource.com/c/23208Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

This fixes a memory leak in the Queue object. The sw::Renderer
object has a non trivial destructor, which means we need to call
it before deallocating the Queue objects.

Bug b/117974925

Change-Id: I1e13c6108e77d5cdcbea337d572f72fdd32530a1
Reviewed-on: https://swiftshader-review.googlesource.com/c/23188Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

Change-Id: I5feee7fb928a49762faa8154804fc4b0e86f60b8
Reviewed-on: https://swiftshader-review.googlesource.com/c/23169Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

Piped all the information from the vertex buffers and
the pipeline to the renderer to perform a draw.

In order for the renderer and the context to have proper
lifetimes, they both reside in the Queue object for now.

Bug b/118619338

Change-Id: Ifa03acd13ceb065a856b50f2cffadd4ee6b9a163
Reviewed-on: https://swiftshader-review.googlesource.com/c/23111Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Implemented vkCmdBeginRenderPass and vkCmdEndRenderPass.
The RenderPass object begin and end are noop for now, but
the framebuffer gets cleared within vkCmdBeginRenderPass.

Bug b/119620965 b/118619338

Change-Id: I8e1f2932d9d52b3dcb5c10d4e60cba83b28bb95d
Reviewed-on: https://swiftshader-review.googlesource.com/c/23108Reviewed-by: Corentin Wallez <cwallez@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Adjusted a few checks in the GraphicsPipeline constructor,
specifically stages' specialization info and sample mask,
which can either be null or default.

Also fixed destroying Pipeline objects, making sure there's
no confusion between GraphicsPipeline and ComputePipeline's
destroy() methods inherited from their 2 base classes
(Pipeline::destroy() and ObjectBase::destroy()).

Bug b/118386749

Change-Id: I78be9f0bbb735518e07d52f7372dbf08b9834abf
Reviewed-on: https://swiftshader-review.googlesource.com/c/23110Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

Use the blitter to implement Image::clear.

The image can be easily packed into a sw::Surface. For now,
the surface is a temporary, but it may become a member in
the future if it makes sense.

Bug b/119620767

Change-Id: I122a321509dc8cc5b624ddd776bd9059eee0cbc4
Reviewed-on: https://swiftshader-review.googlesource.com/c/23109Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

Added VkImageView object.
Added "clear" function to illustrate the link between VkFramebuffer
attachments, VkImageView and VkImage, along with the minimal set of
class members to allows the function arguments to be used properly.

Bug b/119620767 b/119621736

Change-Id: I0e7e6017979960bacbdf888d632c83edda3483cf
Reviewed-on: https://swiftshader-review.googlesource.com/c/22668Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

Implemented Image to Image copy, Image to Buffer copy and
Buffer to Image copy commands which are required in order
to run the dEQP-VK.api.copy_and_blit.core.image_to_image.*
tests.

Passes over 99.7% of the 10907 tests in:
dEQP-VK.api.copy_and_blit.core.image_to_image.*

Bug b/118619338 b/119620767

Change-Id: Id4d3aa5186bed84d0925e4424399716efbd241ee
Reviewed-on: https://swiftshader-review.googlesource.com/c/23071Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>

A call to vkBeginCommandBuffer implicitly resets the command buffer.

Bug b/118619338

Change-Id: I020a2d15915cbb309dbcd012b2dbbf34ca2f63c6
Reviewed-on: https://swiftshader-review.googlesource.com/c/23148Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>

Image objects now have the ability to copy their content to another
image object. They can also copy their content to or from Buffer
objects.

Bug b\119620767

Change-Id: I047e9ecdcc11e264589de1d9461ef448f22a4d9e
Reviewed-on: https://swiftshader-review.googlesource.com/c/23070Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

Includes only the include/spirv/unified1 subtree.

Based on git://github.com/KhronosGroup/spirv-tools revision 17da9f8231f78cf519b4958c2229463a63ead9e2

Bug: b/120799499
Change-Id: Ifb790bf95035d7feb2d54d07e1475013dfd298b1
Reviewed-on: https://swiftshader-review.googlesource.com/c/23048Tested-by: Chris Forbes <chrisforbes@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Ideally we'd use the [[fallthrough]] attribute to silence this, but that
isn't supported until C++17 and we're sticking with C++11 for now.

Bug b/120382288

Change-Id: I98f28e42505ed496b0b35c29a7dc03fca18cf4ff
Reviewed-on: https://swiftshader-review.googlesource.com/c/23128Reviewed-by: Greg Hartman <ghartman@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>

Buffer now has the ability to copy its content to or from memory.

Bug b/118383648

Change-Id: Ic01bf049fe054559299830ca750263c2277e4d86
Reviewed-on: https://swiftshader-review.googlesource.com/c/23069Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

For the purpose of running dEQP tests, for now, fences can be
implemented as noop. Once more complex rendering tests exercise
this, we'll be able to implement and test fences.

Bug b/117835459

Change-Id: I2b54be816c83f7a626108f61bd14eb9c969a2b0f
Reviewed-on: https://swiftshader-review.googlesource.com/c/23068Reviewed-by: Chris Forbes <chrisforbes@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Because of existing synchronization mechanisms in SwiftShader,
pipeline barriers can be noop for now. If we do remove those
synchronization mechanisms, there's also a simple way of
implementing pipeline barriers, which is commented on here.

Bug b/118619338

Change-Id: If82d275c46f234e5549018115c9f19f21e2c09b2
Reviewed-on: https://swiftshader-review.googlesource.com/c/22708Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Chris Forbes <chrisforbes@google.com>

One part of this might change -- master contains some uses of
std::make_unique which Alexis might get rid of.

Change-Id: I40ae17f4e88920c4d60b79e1d4b117a7800fcd82
Reviewed-on: https://swiftshader-review.googlesource.com/c/23028Reviewed-by: Alexis Hétu <sugoi@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>

MacOS' linker dislikes local static variables that are used
in two separate libraries. Removing them from the header files
fixes all the warnings.

Bug b/chromium:907088

Change-Id: I7b8ed44bf9a3180489a7407980740fd3f3863046
Reviewed-on: https://swiftshader-review.googlesource.com/c/22889Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

This cl adds the code needed to record and submit the minimal
subset of commands required to run a simple triangle example.

The commands themselves are still unimplemented.

Bug b/116336664

Change-Id: Id0109980225a64a2bb3599a89a5495091926c635
Reviewed-on: https://swiftshader-review.googlesource.com/c/22168Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Added a few class members and adjusted the VkPipeline constructor
to extract basic parameters which will be used for rendering, like:
- Basic sw::Context parameters
- Scissor
- Viewport
- BlendConstants

Note: sw::Context should eventually be replaced by VkPipeline and be
      used directly by sw::Renderer once all existing OpenGL ES 3.0
      has been converted from VkPipeline.

(Chris: rebase + build system fixes for CMake path)

Change-Id: I7e7a9ff3c768da8e8c1e9461e140af4986429602
Reviewed-on: https://swiftshader-review.googlesource.com/c/22613Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>

Change-Id: I45349cd6530814efa0c466beb0df7d53b4e17948
Reviewed-on: https://swiftshader-review.googlesource.com/c/23008Reviewed-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Chris Forbes <chrisforbes@google.com>

Bug b/114402930

Change-Id: I228222003e5f015e4966eacc32094a48a7054d0f
Reviewed-on: https://swiftshader-review.googlesource.com/c/22988Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Kevin Schoedel <kpschoedel@google.com>

Added functionality so that the CommandPool can allocate and
free command buffer objects.

Bug b/119827933

Change-Id: I190ba3cd7738f2b5e37b196a0abba6d07cfae173
Reviewed-on: https://swiftshader-review.googlesource.com/c/22748Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

We basically replace all references to CMAKE_SOURCE_DIR and
CMAKE_BINARY_DIR with CMAKE_CURRENT_SOURCE_DIR and
CMAKE_CURRENT_BINARY_DIR.

This enables other cmake projects to take a direct dependency on this
project.

Test: cmake . still shows error for in source builds.
Test: mkdir build && cd build && cmake .. -G Ninja && ninja succeeds
Change-Id: Ibb8366f8e7fd3b3152634c71324a5182d269e647
Reviewed-on: https://swiftshader-review.googlesource.com/c/22692Reviewed-by: Lingfeng Yang <lfy@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Erwin Jansen <jansene@google.com>
Tested-by: Erwin Jansen <jansene@google.com>

The Subzero JIT only supports constants in the second operand of
arithmetic operations, not the first. It assumes constant folding
already took place (true for NaCl which takes LLVM IR as input).
Reactor has constant folding as part of the static C++ compilation,
but the Optimizer may substitute the first operand for a constant
(i.e. constant propagation).

Addressing it in the Optimizer by not performing the substitution
is not trivial because we'd have to check each use. And it would
cost run-time performance. Ideally we'd have a pass for
legalization/optimization which performs constant folding.

For now, avoid hitting 'unreachable' code in Subzero by multiplying
constants at the Reactor level.

Fixes regression caused by https://swiftshader-review.googlesource.com/22910

Bug chromium:904265
Bug swiftshader:14

Change-Id: Ifdc72ac997ad5d71c1f7006259f54f3d715cb613
Reviewed-on: https://swiftshader-review.googlesource.com/c/22930Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

GLSL textureSize() calls that use a sampler that is not a uniform,
should not use the index of the register as the texture unit index.
Instead the index is the value stored in the register itself.

Bug chromium:904265

Change-Id: Iee1058e789daae15248ae5ffa940a0155dca61b5
Reviewed-on: https://swiftshader-review.googlesource.com/c/22910Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

- Replaced sw::Viewport with VkViewport

Bug b/118386749

Change-Id: I2446883ba9e5623753322fc417386394a3fe370c
Reviewed-on: https://swiftshader-review.googlesource.com/c/22909Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

This cl exposes the bare minimum in terms of format requirements
in order to support Vulkan 1.1.

Fixes all failures in: dEQP-VK.api.info.format_properties.*

Bug b/117974925

Change-Id: Ia84b1b13430faffeb840e118b09b9f3e352c8cc9
Reviewed-on: https://swiftshader-review.googlesource.com/c/22888Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

- Replaced BlendFactor with VkBlendFactor
- Replaced BlendOperation with VkBlendOp

Bug b/118386749

Change-Id: I25031c044af05b1922d031db9e82c52bb785def5
Reviewed-on: https://swiftshader-review.googlesource.com/c/22850Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Implements support for VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2 and
other structure types used during Vulkan 1.1 device creation.

Bug b/117974925

Change-Id: Ic23067f145322a814ccda7dd44a087d7a4020e3d
Reviewed-on: https://swiftshader-review.googlesource.com/c/22689Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

vkGetInstanceProcAddr must return NULL when the instance parameter is
NULL, except for a few global functions.

vkGetDeviceProcAddr must return NULL for any non-device-level functions.

Fixes dEQP-VK.api.version_check.entry_points

Bug b/116336664

Change-Id: I446edb0b8c4b94938e0ab77913c8ad391d490f4f
Reviewed-on: https://swiftshader-review.googlesource.com/c/22688Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

<memory.h> isn't actually an official standard C header.
memcpy() is defined in <string.h> / <cstring>.

Change-Id: I578e3a8ea741934e594049e359b906665de80134
Reviewed-on: https://swiftshader-review.googlesource.com/c/22649Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

This adds the Pastel driver ID.

https://github.com/KhronosGroup/Vulkan-Docs
revision 256a1ef66182b2d458148f2fdea183557ea3f507

Bug b/116336664

Change-Id: I3d227eaff99b6bd8402b0808cfad7501438e9e65
Reviewed-on: https://swiftshader-review.googlesource.com/c/22648Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

SwiftShader can now be tested directly with dEQP, without using the
system's Vulkan loader or layers.

Bug b/116336664

Change-Id: I08816b5fb893d048c3dfe325ff54f44c646b250f
Reviewed-on: https://swiftshader-review.googlesource.com/c/22868Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

Unaligned accesses are undefined behavior, but they're common in our
ELF binary patching code for variable length instruction sets (namely
x86).

We can use memcpy() and rely on target-specific compiler optimizations
to make it efficient. Utility functions and classes were added to aid
readability.

Bug b/119823623

Change-Id: I8a82672a0d18d1e1783f580eb629f8cc09a009cd
Reviewed-on: https://swiftshader-review.googlesource.com/c/22828Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

Accessing members of a null pointer is undefined behavior, even when
only used to obtain the address again. So use a non-zero value as the
base pointer address instead. 32 was chosen to provide sufficient
alignment guarantees.

Bug b/119823623

Change-Id: Ia6d24dd6c2740261948860c45eb35cc489a3a827
Reviewed-on: https://swiftshader-review.googlesource.com/c/22788Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>

Replaced LogicalOperation with VkLogicOp.

Bug b/118386749

Change-Id: I9776dd112e2a742cd73fba241e0659813cc974e7
Reviewed-on: https://swiftshader-review.googlesource.com/c/22849Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>

While implementing Pipeline Cache is optional, we still need a
placeholder object in order to return have a valid handle for
this object.

b/118386749

Change-Id: I18abb4196fbc99d3f639c1ba14ceb570ac11b365
Reviewed-on: https://swiftshader-review.googlesource.com/c/22729Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Alexis Hétu <sugoi@google.com>

Basic shell class for CommandPool

Bug b/119827933

Change-Id: Ibbc8ac641b168a15974fd4ff1803b5aff51f48a3
Reviewed-on: https://swiftshader-review.googlesource.com/c/22730Tested-by: Alexis Hétu <sugoi@google.com>
Reviewed-by: Nicolas Capens <nicolascapens@google.com>