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CMake-only fork of https://dawn.googlesource.com/dawn with cleaned, vendored dependencies
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Kai Ninomiya f44a809f9a Remove VK_DEFINE_NON_DISPATCHABLE_HANDLE magic, use explicit VkHandle wrapper 
Overriding VK_DEFINE_NON_DISPATCHABLE_HANDLE changes the function
signatures of Vulkan functions, changing their ABI and making us
incompatible with real drivers. This removes that magic, and replaces it
with an explicit wrapper, VkHandle, which has much of the same
functionality as the original VkNonDispatchableHandle.

It adds definitions for dawn_native::vulkan::VkBuffer et al, which
shadow the native ::VkBuffer et al. This retains type safety throughout
the Vulkan backend without changing every single usage.

Notably, the following things had to change:
- An explicit conversion from VkBuffer* to ::VkBuffer* is needed for
  arrays. This is implemented as a reinterpret_cast, which is still
  safe as the new VkHandle still has the same memory layout properties
  as VkNonDispatchableHandle did.
- When pointing to a VkHandle as an output pointer, it's now necessary
  to explicitly get the native ::VkBuffer (via operator*) and point to
  it.

Previously reviewed on:
https://dawn-review.googlesource.com/c/dawn/+/15580

Bug: chromium:1046362
Change-Id: I7d34ec38a805025f92165ea9a7ee07ae5c182076
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/15641
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
 		2020-01-31 04:04:16 +00:00
build_overrides perf_tests: Manually serialize JSON and remove dependency on jsoncpp 2019-12-20 19:39:10 +00:00
docs [docs] Add documentation for Dawn's testing infrastructure 2020-01-31 03:28:56 +00:00
examples Add the webgpu.h swapchain creation path 2020-01-23 17:20:38 +00:00
generator Use dict.items() instead of dict.iteritems() for py3 compat 2020-01-30 01:25:08 +00:00
infra/config [infra/config] Bump OS X SDK version for dawn. 2019-08-09 01:19:04 +00:00
scripts Fix Vulkan fuzzer on mac_libfuzzer_chrome_asan 2020-01-25 02:14:39 +00:00
src Remove VK_DEFINE_NON_DISPATCHABLE_HANDLE magic, use explicit VkHandle wrapper 2020-01-31 04:04:16 +00:00
third_party Fix BUILD.gn issues for Android & Fuschia 2019-11-28 19:48:45 +00:00
.clang-format Add .clang-format 2017-11-28 16:18:39 -05:00
.gitattributes Add .gitattributes to normalize EOL 2019-07-15 12:23:18 +00:00
.gitignore Allow using swiftshader with the Vulkan backend 2019-11-26 18:21:51 +00:00
.gn Re-enable -Wunguarded-availability in Dawn standalone builds 2019-12-11 16:54:51 +00:00
AUTHORS Rename NXT -> Dawn in the comments 2018-07-18 22:54:06 +02:00
BUILD.gn Add the webgpu.h swapchain creation path 2020-01-23 17:20:38 +00:00
CONTRIBUTING.md docs: write an overview of Dawn and split README.md 2019-12-05 11:01:41 +00:00
DEPS Rolling 5 dependencies 2020-01-27 19:55:23 +00:00
LICENSE Initial commit of all the NXT integration. 2017-04-20 14:38:20 -04:00
OWNERS Add component to OWNERS and fixup repo URL in README.chromium 2018-09-25 20:53:37 +00:00
PRESUBMIT.py PRESUBMIT.py: Add formatting checks. 2018-09-11 08:06:36 -04:00
README.chromium Add component to OWNERS and fixup repo URL in README.chromium 2018-09-25 20:53:37 +00:00
README.md docs: write an overview of Dawn and split README.md 2019-12-05 11:01:41 +00:00
codereview.settings Initial CQ configuration 2018-08-23 08:33:35 -04:00
dawn.json Generators for Emscripten 2020-01-28 23:54:38 +00:00
dawn_wire.json Introduce wgpu::Surface and implement it for HWND, X11 and Metal 2020-01-15 13:14:12 +00:00

README.md

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A "native" implementation of WebGPU using platforms' GPU APIs:
    • D3D12 on Windows 10
    • Metal on macOS and iOS
    • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
    • OpenGL as best effort where available
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with webgpu.h docs)

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.