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, 1 insertions, 1 deletions

diff --git a/tools/gfx/immediate-renderer-base.cpp b/tools/gfx/immediate-renderer-base.cpp
index 33b545f26..774162eb3 100644
--- a/tools/gfx/immediate-renderer-base.cpp
+++ b/tools/gfx/immediate-renderer-base.cpp
@@ -369,7 +369,7 @@ public:
     virtual SLANG_NO_THROW void SLANG_MCALL close() override { }
 
     virtual SLANG_NO_THROW Result SLANG_MCALL
-        getNativeHandle(NativeHandle* outHandle)
+        getNativeHandle(NativeHandle* outHandle) override
     {
         *outHandle = 0;
         return SLANG_OK;