Vulkan update/NVAPI support (#1511)

* First pass at incorporating nvapi into test harness.

* D3d12 Atomic Float Add via NVAPI working

* Dx12 atomic float appears to work.

* Atomic float add on Dx12.

* Added atomic64 feature addition to vk.
Fix correct output for atomic-float-byte-address.slang

* Disable atomic float failing tests.

* Upgraded VK headers.

* Detect atomic float availability on VK.

* Try to get test working for in64 atomic.

* Made HLSL prelude controlled via the render-test requirements.

* Added -enable-nvapi to premake.

* Fix D3D12Renderer when NVAPI is not available.

* Small improvements to VKRenderer.

* Improve atomic documentation in target-compatibility.md.

1 files changed, 45 insertions, 14 deletions

diff --git a/external/vulkan/README.md b/external/vulkan/README.md
index 685e712d1..775c02759 100644
--- a/external/vulkan/README.md
+++ b/external/vulkan/README.md
@@ -4,23 +4,54 @@ Vulkan header files and API registry
 
 ## Repository Content
 
-The contents of this repository are largely obtained from other repositories and are
-collected, coordinated, and curated here.
-
-The projects for these repositories are:
-
-- [KhronosGroup/Vulkan-Docs](https://github.com/KhronosGroup/Vulkan-Docs)
-  - Core Vulkan headers and Registry
-- [KhronosGroup/Vulkan-Hpp](https://github.com/KhronosGroup/Vulkan-Hpp)
-  - C++ Bindings for Vulkan
-
-Please visit the appropriate project in the above list for obtaining additional information,
-asking questions, or opening issues.
+The contents of this repository are largely obtained from other repositories
+and are collected, coordinated, and curated here.
+
+If proposing changes to any file originating from a different repository,
+please propose such changes in that repository, rather than Vulkan-Headers.
+Files in this repository originate from:
+
+### Specification repository (https://github.com/KhronosGroup/Vulkan-Docs)
+
+* registry/cgenerator.py
+* registry/conventions.py
+* registry/generator.py
+* registry/genvk.py
+* registry/reg.py
+* registry/spec_tools/util.py
+* registry/validusage.json
+* registry/vk.xml
+* registry/vkconventions.py
+* All files under include/vulkan/ which are *not* listed explicitly as originating from another repository.
+
+### This repository (https://github.com/KhronosGroup/Vulkan-Headers)
+
+* .cmake-format.py
+* BUILD.gn
+* BUILD.md
+* CMakeLists.txt
+* CODE_OF_CONDUCT.md
+* LICENSE.txt
+* README.md
+* cmake/Copyright_cmake.txt
+* cmake/cmake_uninstall.cmake.in
+* Non-API headers (report issues against @lenny-lunarg)
+  * include/vulkan/vk_icd.h
+  * include/vulkan/vk_layer.h
+  * include/vulkan/vk_sdk_platform.h
+
+### Vulkan C++ Binding Repository (https://github.com/KhronosGroup/Vulkan-Hpp)
+
+* include/vulkan/vulkan.hpp
 
 ## Version Tagging Scheme
 
-Updates to the `Vulkan-Headers` repository which correspond to a new Vulkan specification release are tagged using the following format: `v<`_`version`_`>` (e.g., `v1.1.96`).
+Updates to the `Vulkan-Headers` repository which correspond to a new Vulkan
+specification release are tagged using the following format:
+`v<`_`version`_`>` (e.g., `v1.1.96`).
 
-**Note**: Marked version releases have undergone thorough testing but do not imply the same quality level as SDK tags. SDK tags follow the `sdk-<`_`version`_`>.<`_`patch`_`>` format (e.g., `sdk-1.1.92.0`).
+**Note**: Marked version releases have undergone thorough testing but do not
+imply the same quality level as SDK tags. SDK tags follow the
+`sdk-<`_`version`_`>.<`_`patch`_`>` format (e.g., `sdk-1.1.92.0`).
 
 This scheme was adopted following the 1.1.96 Vulkan specification release.