Add support for buffer sharing from Vulkan to CUDA (#2008)

* Added getSharedHandle() and additional code to handle shareable buffer creation to Buffer::init() and initVulkanInstanceAndDevice() for Vulkan; Modified createBufferFromSharedHandle() in CUDA to assign externalMemoryHandleDesc.type based on the type of handle being provided; Added an additional test case to get-shared-handle.cpp testing Vulkan to CUDA

* Added createBufferFromNativeHandle() to Vulkan and enabled corresponding test

* disable cuda

* Fixed getSharedHandle() for D3D12 buffers assigning Win32 as the handle's source

* Removed a dangling comment inside Buffer::init()

* Added a missing override; Added code to check that a physical device supports the necessary external memory extensions before adding them to the deviceExtensions list; Added #if SLANG_WINDOWS_FAMILY guards around all Windows-specific code and sharedHandleVulkanToCUDA test (which uses said platform-specific code)

* Added Windows check around vkGetMemoryWin32HandleKHR in vk-api.h

* Added missing Windows check around BufferResourceImpl destructor

* Added a temporary hack to ensure synchronization between devices, which solves an issue with buffer sharing resulting in incorrect values being read back; Added #if SLANG_WIN64 around all CUDA tests as the backend currently only supports running CUDA on 64-bit (despite devices being created successfully in a 32-bit config)

1 files changed, 5 insertions, 4 deletions

diff --git a/tools/gfx-unit-test/create-buffer-from-handle.cpp b/tools/gfx-unit-test/create-buffer-from-handle.cpp
index 0b2573da1..538dc492a 100644
--- a/tools/gfx-unit-test/create-buffer-from-handle.cpp
+++ b/tools/gfx-unit-test/create-buffer-from-handle.cpp
@@ -51,6 +51,7 @@ namespace gfx_test
         originalNumbersBuffer->getNativeResourceHandle(&handle);
         ComPtr<IBufferResource> numbersBuffer;
         GFX_CHECK_CALL_ABORT(device->createBufferFromNativeHandle(handle, bufferDesc, numbersBuffer.writeRef()));
+        compareComputeResult(device, numbersBuffer, Slang::makeArray<float>(0.0f, 1.0f, 2.0f, 3.0f));
 
         ComPtr<IResourceView> bufferView;
         IResourceView::Desc viewDesc = {};
@@ -91,9 +92,9 @@ namespace gfx_test
         runTestImpl(createBufferFromHandleTestImpl, unitTestContext, Slang::RenderApiFlag::D3D12);
     }
 
-//     SLANG_UNIT_TEST(createBufferFromHandleVulkan)
-//     {
-//         runTestImpl(createBufferFromHandleTestImpl, unitTestContext, Slang::RenderApiFlag::Vulkan);
-//     }
+    SLANG_UNIT_TEST(createBufferFromHandleVulkan)
+    {
+        runTestImpl(createBufferFromHandleTestImpl, unitTestContext, Slang::RenderApiFlag::Vulkan);
+    }
 
 }