First pass support for half on vk (#912)

* Look at getting half to work on vk.

* Alter half test so can always produce consistent test results.

* First pass working half on vk.

* Improve comments for vulkan extensions around half.

* Upgraded vulkan headers to v1.1.103

https://github.com/KhronosGroup/Vulkan-Headers

* * Add getFeatures on Render interface
* Vulkan renderer determines at startup if it can support half
* Parse render-features on render-test

* Small changes to half-calc.slang test.

* Structured buffer half access works as expected for Vk, but isn't for dx12, so disable for now.

* Require the half feature for renderers for the half-structured-buffer.slang test.

* * Added ToolReturnCode to be more rigerous about how a return code is passed back from a tool
* Added support for a tool being able to pass back an 'ignored' result.
* Used enum codes to indicate meanings
* Made spawnAndWait return a ToolReturnCode

* Ignore tests that don't have required render-feature

* Fix macro line continuation usage.

* Check dx12 has half support.

* Checking for half on dx12 - if CheckFeatureSupport fails, don't fail renderer initialization.

* Fix typo.

1 files changed, 11 insertions, 0 deletions

diff --git a/tools/render-test/render-test-main.cpp b/tools/render-test/render-test-main.cpp
index 0be84f52f..ee408f283 100644
--- a/tools/render-test/render-test-main.cpp
+++ b/tools/render-test/render-test-main.cpp
@@ -574,6 +574,17 @@ SLANG_TEST_TOOL_API SlangResult innerMain(Slang::StdWriters* stdWriters, SlangSe
         }
     }
 
+    {
+        for (const auto& feature : gOptions.renderFeatures)
+        {
+            // If doesn't have required feature... we have to give up
+            if (!renderer->hasFeature(feature.getUnownedSlice()))
+            {
+                return SLANG_E_NOT_AVAILABLE;
+            }
+        }
+    }
+
     // Use the profile name set on options if set
     profileName = gOptions.profileName ? gOptions.profileName : profileName;