Add missing SAL Annotations for improved COM API wrapping

Since the API exposed by some of these headers uses COM, annotating them
with the necessary SAL annotations make it more convenient to generate
comprehensive external bindings for them, such as in Rust:
https://github.com/Traverse-Research/amd-ext-d3d-rs

Author: MarijnS95

AmdExtD3D.h

@@ -26,7 +26,7 @@
 /**
 ***********************************************************************************************************************
 * @file  AmdExtD3D.h
-* @brief AMD D3D Exension API factory include file.
+* @brief AMD D3D Extension API factory include file.
 ***********************************************************************************************************************
 */
 #pragma once
@@ -45,10 +45,10 @@
 // The app must use GetProcAddress, etc. to retrieve this exported function
 // The associated typedef provides a convenient way to define the function pointer
 HRESULT __cdecl AmdExtD3DCreateInterface(
-    IUnknown*   pOuter,     ///< [in] object on which to base this new interface; usually a D3D device
-    REFIID      riid,       ///< ID of the requested interface
-    void**      ppvObject); ///< [out] The result interface object
-typedef HRESULT (__cdecl *PFNAmdExtD3DCreateInterface)(IUnknown* pOuter, REFIID riid, void** ppvObject);
+    IUnknown*           pOuter,     ///< [in] object on which to base this new interface; usually a D3D device
+    REFIID              riid,       ///< ID of the requested interface
+    _COM_Outptr_ void** ppvObject); ///< [out] The result interface object
+typedef HRESULT (__cdecl *PFNAmdExtD3DCreateInterface)(IUnknown* pOuter, REFIID riid, _COM_Outptr_ void** ppvObject);
 
 /**
 ***********************************************************************************************************************
@@ -62,8 +62,8 @@ IAmdExtD3DFactory : public IUnknown
 {
 public:
     virtual HRESULT CreateInterface(
-        IUnknown* pOuter,           ///< [in] An object on which to base this new interface; the required object type
-                                    ///< is usually a device object but not always
-        REFIID    riid,             ///< The ID of the requested interface
-        void**    ppvObject) = 0;   ///< [out] The result interface object
+        IUnknown*           pOuter,           ///< [in] An object on which to base this new interface; the required object type
+                                              ///< is usually a device object but not always
+        REFIID              riid,             ///< The ID of the requested interface
+        _COM_Outptr_ void** ppvObject) = 0;   ///< [out] The result interface object
 };

AmdExtD3DCommandListMarkerApi.h

@@ -51,4 +51,4 @@ IAmdExtD3DCommandListMarker : public IUnknown
     virtual VOID PopMarker() = 0;
     /// Set a command list marker to indicate a rendering activity
     virtual VOID SetMarker(const char* pMarker) = 0;
-};
+};

AmdExtD3DDeviceApi.h

@@ -25,9 +25,8 @@
 */
 
 #pragma once
-#include "unknwn.h"
+#include <unknwn.h>
 #include <d3d12.h>
-#include "AmdExtD3DDeviceApi.h"
 
 /**
 ***********************************************************************************************************************
@@ -88,7 +87,7 @@ IAmdExtD3DDevice : public IUnknown
         const AmdExtD3DCreateInfo*                  pAmdExtCreateInfo,
         const D3D12_GRAPHICS_PIPELINE_STATE_DESC*   pDesc,
         REFIID                                      riid,
-        void**                                      ppPipelineState) = 0;
+        _COM_Outptr_ void**                         ppPipelineState) = 0;
 };
 
 /**
@@ -103,4 +102,4 @@ IAmdExtD3DDevice1 : public IAmdExtD3DDevice
     virtual VOID PushMarker(ID3D12GraphicsCommandList* pGfxCmdList, const char* pMarker) = 0;
     virtual VOID PopMarker(ID3D12GraphicsCommandList* pGfxCmdList) = 0;
     virtual VOID SetMarker(ID3D12GraphicsCommandList* pGfxCmdList, const char* pMarker) = 0;
-};
+};

AmdExtGpaInterfaceApi.h

@@ -81,7 +81,7 @@ IAmdExtGpaSession : public IUnknown
     virtual UINT32 BeginSample(ID3D12GraphicsCommandList* pGfxCmdList, const AmdExtGpaSampleConfig& config) = 0;
     virtual VOID EndSample(ID3D12GraphicsCommandList* pGfxCmdList, UINT32 sampleId) = 0;
     virtual bool IsReady() const = 0;
-    virtual HRESULT GetResults(UINT32 sampleId, size_t* pSizeInBytes, void *pData) const = 0;
+    virtual HRESULT GetResults(UINT32 sampleId, _Inout_ size_t* pSizeInBytes, _Out_writes_bytes_opt_(*pSizeInBytes) void *pData) const = 0;
     virtual HRESULT Reset() = 0;
     virtual VOID CopyResults(ID3D12GraphicsCommandList* pGfxCmdList) = 0;
 };