Minor refactor to gfx D3D12 implementation. (#1913)

* Minor refactor to gfx D3D12 implementation.

- Allow more flexible collection of shader stages in a shader program.
- Add `createRayTracingPipelineState` public interface. (no implementation).

* Fix Vulkan initialization.

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/tools/gfx/debug-layer.cpp b/tools/gfx/debug-layer.cpp
index 61ec856e9..067581559 100644
--- a/tools/gfx/debug-layer.cpp
+++ b/tools/gfx/debug-layer.cpp
@@ -612,6 +612,24 @@ Result DebugDevice::createComputePipelineState(
     return result;
 }
 
+Result DebugDevice::createRayTracingPipelineState(
+    const RayTracingPipelineStateDesc& desc,
+    IPipelineState** outState)
+{
+    SLANG_GFX_API_FUNC;
+
+    RayTracingPipelineStateDesc innerDesc = desc;
+    innerDesc.program = static_cast<DebugShaderProgram*>(desc.program)->baseObject;
+
+    RefPtr<DebugPipelineState> outObject = new DebugPipelineState();
+    auto result =
+        baseObject->createRayTracingPipelineState(innerDesc, outObject->baseObject.writeRef());
+    if (SLANG_FAILED(result))
+        return result;
+    returnComPtr(outState, outObject);
+    return result;
+}
+
 SlangResult DebugDevice::readTextureResource(
     ITextureResource* resource,
     ResourceState state,