Add method to retrieve native handles (#1944)

* Added a getNativeHandle() method that retrieves the natively created handles; Modified RendererBase, VKDevice, D3D12Device, and DebugDevice to implement this new method

* Moved ExistingDeviceHandles out of Desc directly inside IDevice and renamed to NativeHandles; Modified calls accessing the struct accordingly in RendererBase, DebugDevice, VKDevice, and D3D12Device

* Minor cleanup changes (renames, etc.)

1 files changed, 8 insertions, 0 deletions

diff --git a/tools/gfx/d3d12/render-d3d12.cpp b/tools/gfx/d3d12/render-d3d12.cpp
index 22f846ded..b9419c0f1 100644
--- a/tools/gfx/d3d12/render-d3d12.cpp
+++ b/tools/gfx/d3d12/render-d3d12.cpp
@@ -146,6 +146,8 @@ public:
         return m_info;
     }
 
+    virtual SLANG_NO_THROW Result SLANG_MCALL getNativeHandle(NativeHandle* outHandle) override;
+
     ~D3D12Device();
 
 #if SLANG_GFX_HAS_DXR_SUPPORT
@@ -4115,6 +4117,12 @@ Result D3D12Device::captureTextureToSurface(
 
 // !!!!!!!!!!!!!!!!!!!!!!!!!!!! Renderer interface !!!!!!!!!!!!!!!!!!!!!!!!!!
 
+Result D3D12Device::getNativeHandle(NativeHandle* outHandle)
+{
+    *outHandle = NativeHandle::fromD3D12Handle(m_device);
+    return SLANG_OK;
+}
+
 Result D3D12Device::_createDevice(DeviceCheckFlags deviceCheckFlags, const UnownedStringSlice& nameMatch, D3D_FEATURE_LEVEL featureLevel, DeviceInfo& outDeviceInfo)
 {
     outDeviceInfo.clear();