This is in preparation for a change that will change all the
CreateFooInternal to be CreateFoo so they can be called in a
reentrant manner without special refcounting.
This also standardizes all the backends (except OpenGL and Null)
to use Object::Create that returns a Ref<T> or ResultOrError<Ref<T>>,
something we wanted to do for a long time.
Bug: dawn:723
Change-Id: I9e0baced333ffeb0affbc6a276c9bd9de082263a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46440
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
In the service of keeping these changes incremental and easier to
review this change only validates the RenderPipelineDescriptor2
before converting it back to a RenderPipelineDescriptor.
BUG: dawn:642
Change-Id: Ie24c999756fa74f7d3cd10662a6bc95649602b14
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46120
Auto-Submit: Brandon Jones <bajones@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
BindingInfo is declared in BindingInfo.h. However,
ShaderModule.h declares an alias BindingInfo in EntryPointMetadata.
This confuses GCC. Rename the alias to BindingInfoArray.
Bug: chromium:819294
Change-Id: Ia43c9eb8d793a3078faa6340980017236a6adbb3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/39502
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Changes the internal BindingInfo structure and any references to it. The
BindGroupLayoutEntry information is normalized when converting it into
the internal representation, but still accepted as either the old or
new layout. A "bindingType" member is added to the BindingInfo that's
not present in the BindGroupLayoutEntry itself to indicate which of
buffer, sampler, texture, or storageTexture is populated. This proves
useful for a myriad of switch statements in the various backends.
Bug: dawn:527
Change-Id: I6ae65adae61d0005fc50ed6d1bc2ec9b2a1295ad
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/35862
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Auto-Submit: Brandon Jones <bajones@chromium.org>
Dawn's object-based cache creates keys from memory
addresses. These keys cannot be used in a persistent
cache. This change modifies the keys to only
use hashes so they can be re-used for caching
pipelines.
BUG=dawn:549
Change-Id: Ica64d58ae6a3c6266435cfc3f776c820190f7895
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/30740
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Previsouly having a ShaderModule with multiple entrypoints with the same
name and different stages was valid in Dawn. However it is disallowed by
the WGSL specification so change Dawn to index the ShaderModule's
entrypoints only by their name (instead of name and stage).
Bug: dawn:216
Change-Id: Id6fc80a03436b008c2f057bd30c70fdf240919e8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/31665
Reviewed-by: dan sinclair <dsinclair@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
And deprecate using ::Float in the bind group layout for
"shadow textures" in the pipeline (along with a deprecation test).
Adds the ability to be used with DepthComparison only to depth textures,
this could potentially a breaking change if users where doing
depth-comparison on float32 textures but that's not supported in WebGPU.
Bug: dawn:527
Change-Id: Ib28b0443e3002e0aa2811713b9e843c2417e13e7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/30240
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Previously Format::Type was used instead of wgpu::TextureComponentType
so that ::Other could server as a tag value. This was confusing and
almost the single use of ::Other.
In a follow-up CL the format baseType is changed to be a per-aspect
value, and Format::Type. This CL is a self-contained step in that
direction.
Bug: dawn:527
Change-Id: Ida834087f45a8fca17670ffe8ebd4d5c4f1cd423
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/30102
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This function was bit long and was difficult to read. Refactor it to use
a single double keyed map and helper functions.
Bug: dawn:527
Change-Id: I8c1173fd0e06256c7e7060a850996e1e90187d50
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28640
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Instead of calling validation functions directly in
PipelineLayoutBase::CreateDefault, use ValidateBGLDesc and
ValidatePipelineLayoutDesc.
Also makes the visibility of the default layout match the aggregation as
in the WebGPU spec.
Also makes refcounting of BGLs a bit less manual at the bottom of
CreateDefault.
Also adds tests for minBufferBindingSize and visiblity aggregation in
the default layout computations.
Bug: dawn:527
Change-Id: I6bbd5f3de8b235dddf6cbd2bedfd34a094fcb277
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28560
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
It isn't in the upstream WebGPU spec and completely unimplemented in
Dawn.
Bug: dawn:527
Change-Id: I2023c7b1de2a9fa50d26ab1678b7ef7e32c64af6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/28500
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
PipelineBase now collects the EntryPointMetadata for all its
stages which makes the rest of the code agnostic to the entrypoint
name (except D3D12 and OpenGL that required transition hacks and
will be fixed in follow-up CLs).
Bug: dawn:216
Change-Id: I643da198cb2a20a9d94d805a2dc783d6d4346ae9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/27260
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
kMaxBindingsPerGroup is not a real WebGPU limit. Code in Dawn that
uses it now uses dynamically sized vectors, optimistic stack_vecs or
a different limit like kMaxDynamicBuffersPerPipelineLayout.
The CL introduces kMaxOptimalBindingsPerGroup=32 which is used to size
the static portion of stack_vecs, but the value is tentative.
Bug: dawn:443
Change-Id: I08e06bed6531bed8b4365f36cf2fc0579ac5f180
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23502
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
This CL adds per-stage and per-pipeline-layout limits according
to the WebGPU spec. It also slightly increases kMaxBindingsPerGroup
from 16 to 24 so that these limits can be effectively tested
without hitting kMaxBindingsPerGroup. kMaxBindingsPerGroup is not a
real WebGPU limit and will be removed in future patches.
Bug: dawn:443
Change-Id: I72be062cd31dea4ebd851f2d9f8274a77f286846
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24481
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Done by:
- Appending an extra newline at the end of src/**/*.{cpp,h,mm,gn}
except src/tests/*
- Running git cl format --full to format the full contents of every
changed file
Bug: none
Change-Id: Id88fc5ed0c5efbbc93b2c6a305c2f98465fe646d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24641
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Bug: dawn:442
Change-Id: I889a943cbaf2d349c31a15fdf126d66964bdd0a7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23247
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
This CL adds support for multisampled sampling on the D3D12 backend.
This was already working on other backends. It also adds tests that all
of the sample locations are correct.
Bug: dawn:431
Change-Id: I6849e5e2d708ad4824e6db2665d668d43a4ef5ea
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23245
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This CL adds a TypedInteger helper which provides additional type
safety in Dawn. It is a compile-time restriction that prevents integers
of different types from being used interchangably in Debug builds.
It also adds ityp::{array,bitset,span} as helper classes to wrap std::
versions (not span). These accept a template paramter as the Index type
so that typed integers, or enum classes, may be used as a type-safe
index.
For now, bind group layout binding indices use TypedInteger. Future
CLs will convert other indices to be type-safe as well.
Bug: dawn:442
Change-Id: I5b63b1e4f6154322db0227a7788a4e9b8303410e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19902
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This patch makes Dawn provide more detailed error messages when the
pipeline layout is not compatible with shader module, which is helpful
to debug such errors in WebGPU applications.
BUG=dawn:456
Change-Id: Ib5a870d8e66645481434c4d3dc6fdc1a585aac36
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22881
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This patch adds validations to forbid using cube or cube array texture
views as storage textures in Dawn as they are not supported on D3D12.
BUG=dawn:267
TEST=dawn_unittests
Change-Id: Iafb705a4bedae25ee54cfa45f710b2f3b7aab912
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22166
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
This patch enables the use of write-only storage textures in fragment
shader stage after the new decision in WebGPU CG.
BUG=dawn:267
TEST=dawn_unittests
Change-Id: Ia1884e5d1a8e63cf992d3518df7375c2b3a72c41
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19784
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
This is a reland of 6d9e4f8076
Now that the Chromium-side API change has landed, this CL can land.
Original change's description:
> Add ComparisonSampler binding type and validation tests
>
> Bug: dawn:367
> Change-Id: Iba1d3d03f6247a356b6f3fabfe7a7ba3c0753171
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18423
> Reviewed-by: Austin Eng <enga@chromium.org>
> Commit-Queue: Austin Eng <enga@chromium.org>
Bug: dawn:367
TBR=cwallez@chromium.org,kainino@chromium.org
Change-Id: I325d096e7ce092d17833429c3f54ef7c71189739
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/20045
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This reverts commit 6d9e4f8076.
Reason for revert: Breaks the roll in Chromium, gpu_sampler.cc must first be
fixed to use the new undefined value, before this can be landed.
Original change's description:
> Add ComparisonSampler binding type and validation tests
>
> Bug: dawn:367
> Change-Id: Iba1d3d03f6247a356b6f3fabfe7a7ba3c0753171
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18423
> Reviewed-by: Austin Eng <enga@chromium.org>
> Commit-Queue: Austin Eng <enga@chromium.org>
TBR=cwallez@chromium.org,kainino@chromium.org,enga@chromium.org
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: dawn:367
Change-Id: Ic071a601df2063bd2da5388b2e75c1a121924a69
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19983
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This is to match the WebGPU API change.
The only manual changes are in dawn.json and templates. The rest was
created with the following commands:
git grep -l BindGroupLayoutBinding | xargs sed -i "" -e "s/BindGroupLayoutBinding/BindGroupLayoutEntry/g"
git grep -l BindGroupBinding | xargs sed -i "" -e "s/BindGroupBinding/BindGroupEntry/g"
git cl format
Bug: dawn:22
Change-Id: I1377eef9ea9816578441c91d167909dedc7f8e96
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18863
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This moves BindGroupLayoutBase::BindingInfo into the dawn_native
namespace and changes ShaderModule::BindingInfo to extend it with
SPIR-V ids.
Bug: dawn:354
Change-Id: I6a2187e94c0200bee729cf8290f74e4f8c648334
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/17920
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Also fixes a bug where we weren't validating duplicating
bindings in the shader, and where dynamic offset validation
could be incorrectly fetching the wrong bindings.
Bug: dawn:354
Change-Id: I93178c34eb4d43119e8b9de5738ae4596e9277cd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/17240
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This patch adds the validation on the storage texture format declared in
shaders when we create a rendering or compute pipeline with read-only or
write-only storage textures.
This patch also fixes a typo in the TextureValidationTest.
BUG=dawn:267
TEST=dawn_unittests
Change-Id: Id302b4b7803d7e03b57c61de1290cc71ba940e2c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16940
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This patch adds the basic validation of read-only storage texture,
write-only storage texture and read-write storage texture as new
binding types with no bind group layout provided in the creation of
pipeline state objects.
- Read-only storage textures can be used in vertex, fragment and
compute shaders.
- Write-only storage textures can only be used in compute shaders
due to the limitation on Metal.
- Read-write storage textures are not allowed now and they are
reserved to be supported as an extension in the future.
BUG=dawn:267
TEST=dawn_unittests
Change-Id: Iffc432f29a855b85d59451cb3c50269e03b84627
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16661
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This patch intends to fix a crash issue when creating a rendering
pipeline with storage buffer declared in vertex shader and pipeline
layout is not set.
Without this patch, in PipelineLayoutBase::CreateDefault() the
bindingSlot.visibility is always set to Fragment and Compute when it is
a storage buffer, therefore a crash happens at the failure of the
assertion modules->IsCompatibleWithPipelineLayout() when the storage
buffer is actually declared in the vertex shader.
BUG=dawn:276
TEST=dawn_unittests
Change-Id: I56876a97d53ead5ed226dc1b9bbed1a77156b2b2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16564
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Writable storage buffer in vertex shader is an optional feature.
It is not supported in many devices/OSes. WebGPU doesn't support
writable storage buffer in vertex shader. This change generates an
error for storage buffer binding for vertex shader stage, in order
to disallow writable storage buffer in vertex shader.
This change also adds a validation test and revises existing
end2end tests and validation tests accordingly.
BUG=dawn:180
Change-Id: I9def918d19f65aab45a31acb985c1a0a09c97ca8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14521
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This patch makes the |layout| member of the Render|ComputePipelineDescriptor
optional. If it is not provided, a default layout is created from the
ShaderModules provided and used to replace the layout in the descriptor.
Then, pipeline.GetBindGroupLayout may be called to get the existing, or
the computed bind group layout. If no bind group layout exists at the
provided index, an empty bind group layout is returned.
Bug: dawn:276
Change-Id: I276ed0296a2f1f2d8131fa906a4aefe85d75b3a7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13741
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
This fixes bugs where we try to uncache objects that fail creation.
Bug: dawn:249
Change-Id: Ic60b3ce702dfdda18baa6d263911885a43d3cda7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12820
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
In a typical graphics application it is a common usage to update some uniforms once per draw,
and such uniforms include the word positions, orientations, and so on. In the current state of
WebGPU, this means that for each draw call we have to create a new bind group to set the right
uniform values. Bind group creation is expected to be more expensive than
recording draws because a memory allocation is required.
The functionality of dynamic buffer offset is to reduce the number of bind groups that need to
be created.
The patch implements dynamic buffer offset on D3D backend using root descriptor.
Bug=dawn:55
Change-Id: Ia713a4edb3c0ab8f3bba048d7813f343e9dee166
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/9040
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Error objects that are cached still have mIsBlueprint to false and would
try to uncache themselves, which isn't valid.
Also adds a regression test.
BUG=dawn:143
Change-Id: Icd8bab52982b8520519d52296fffa6ed85088b8e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6900
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This is the first step to do pipeline deduplication. It also introduces
tests for deduplication.
BUG=dawn:143
Change-Id: Ib22496f543f8d1f9cfde04f725612504132c7d72
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6861
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Dawn used to return "nullptr" when an error happened while creating an
object. To match WebGPU we want to return valid pointers but to "error"
objects.
This commit implements WebGPU error handling for all "descriptorized"
objects and changes the nullptr error checks into "ValidateObject"
checks. This method is used both to check that the object isn't an
error, but also that all objects in a function call are from the same
device.
New validation is added to objects with methods (apart from Device) so
they check they aren't error objects.
A large number of ASSERTs were added to check that frontend objects
aren't accessed when they are errors, so that missing validation would
hit the asserts instead of crashing randomly.
The bind group validation tests were modified to test the behavior with
both nullptrs and error objects.
Future commits will change the CommandBufferBuilder to not be a builder
anymore but an "Encoder" instead with special-cased error handling. Then
once all objects are descriptorized, the notion of builders will be
removed from the code.
BUG=dawn:8
Change-Id: I8647712d5de3deb0e99e3bc58f34496f67710edd
Reviewed-on: https://dawn-review.googlesource.com/c/4360
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Undefined BGLs are stored as nullptr in the pipeline layout, so to be
defensive we assert clients of PipelineLayout can't request undefined
BGLs (which forces iteration on the BGLMask).
Also fix two cases where the BGLs were iterated on incorrectly.
BUG=dawn:8
Change-Id: I3c084125b93d6684b4c79a56745632874079ebec
Reviewed-on: https://dawn-review.googlesource.com/c/4480
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
This patch fixes a crash issue on D3D12 backends that are caused by
a bug in computing bind group index in function GroupsInheritUpTo().
The return value of this function should be kMaxBindGroups instead of
(kMaxBindGroups + 1) as the maximum number of bind group sets is
kMaxBindGroups.
This patch also adds a regression test on this bug.
BUG=dawn:78
TEST=dawn_end2end_tests
Change-Id: Ie060a52f987803ed6a325b337ff678e6b73e2897
Reviewed-on: https://dawn-review.googlesource.com/c/4080
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
ObjectBase will contain data that all WebGPU objects have such as a
pointer back to the device, a refcount (via inheriting from RefCounted),
a name, an error status etc.
BUG=dawn:24
Change-Id: I919e1a6d4a68811ceb6e503b2a793815c92f2528
Reviewed-on: https://dawn-review.googlesource.com/c/1620
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
The error type will help distinguish between validation errors, context
losts and others which should be handled differently.
Take advantage of advantage of this to change DAWN_RETURN_ERROR to
"return DAWN_FOO_ERROR" to have the return be more explicit. Also
removes usage of DAWN_TRY_ASSERT for more explicit checks.
Change-Id: Icbce16b0c8d8eb084b0af2fc132acee776909a36
The dawn.h and dawncpp.h structure definitions references dawnFoo or
dawn::Foo respectively when it should reference dawn_native::FooBase* in
dawn_native. Autogenerate files to declare the dawn_native version of
the structs and change the ProcTable generation to use it instead.
This is important to make libdawn_native a shared library because
currently it was depending on dawncpp's definition of .Get().
Corentin Wallez
Brandon Jones
Stephan Hartmann
Bryan Bernhart
Austin Eng
Kai Ninomiya
Tomek Ponitka
Idan Raiter
Jiawei Shao
Yunchao He
Yan, Shaobo