Add gfxGetAdapters function (currently implemented for D3D12/Vulkan) (#2486)

* Add gfxGetAdapters function (currently implemented for D3D12/Vulkan)

* Extend to handle DirectX11 and CUDA

* Use blob to return adapter list and add AdapterList helper

* Replace strncpy with memcpy

Co-authored-by: jsmall-nvidia <jsmall@nvidia.com>

2 files changed, 24 insertions, 0 deletions

diff --git a/tools/gfx/d3d11/d3d11-helper-functions.cpp b/tools/gfx/d3d11/d3d11-helper-functions.cpp
index c797979ce..93065077a 100644
--- a/tools/gfx/d3d11/d3d11-helper-functions.cpp
+++ b/tools/gfx/d3d11/d3d11-helper-functions.cpp
@@ -345,6 +345,27 @@ namespace d3d11
     }
 } // namespace d3d11
 
+Result SLANG_MCALL getD3D11Adapters(List<AdapterInfo>& outAdapters)
+{
+    List<ComPtr<IDXGIAdapter>> dxgiAdapters;
+    DeviceCheckFlags flags = DeviceCheckFlag::UseHardwareDevice;
+    SLANG_RETURN_ON_FAIL(D3DUtil::findAdapters(flags, UnownedStringSlice(), dxgiAdapters));
+
+    outAdapters.clear();
+    for (const auto& dxgiAdapter : dxgiAdapters)
+    {
+        DXGI_ADAPTER_DESC desc;
+        dxgiAdapter->GetDesc(&desc);
+        AdapterInfo info = {};
+        auto name = String::fromWString(desc.Description);
+        memcpy(info.name, name.getBuffer(), Math::Min(name.getLength(), (Index)sizeof(AdapterInfo::name) - 1));
+        info.vendorID = desc.VendorId;
+        info.deviceID = desc.DeviceId;
+        outAdapters.add(info);
+    }
+    return SLANG_OK;
+}
+
 Result SLANG_MCALL createD3D11Device(const IDevice::Desc* desc, IDevice** outDevice)
 {
     RefPtr<d3d11::DeviceImpl> result = new d3d11::DeviceImpl();
diff --git a/tools/gfx/d3d11/d3d11-helper-functions.h b/tools/gfx/d3d11/d3d11-helper-functions.h
index 266ba0973..9f115d88d 100644
--- a/tools/gfx/d3d11/d3d11-helper-functions.h
+++ b/tools/gfx/d3d11/d3d11-helper-functions.h
@@ -3,6 +3,7 @@
 
 #include "slang-gfx.h"
 #include "d3d11-base.h"
+#include "../../../source/core/slang-list.h"
 
 namespace gfx
 {
@@ -281,6 +282,8 @@ namespace d3d11
         D3D11_SHADER_RESOURCE_VIEW_DESC& descOut);
 } // namespace d3d11
 
+Result SLANG_MCALL getD3D11Adapters(List<AdapterInfo>& outAdapters);
+
 Result SLANG_MCALL createD3D11Device(const IDevice::Desc* desc, IDevice** outDevice);
 
 } // namespace gfx