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      1 
      2 ///////////////////////////////////////////////////////////////////////////////
      3 //                                                                           //
      4 // dxcapi.h                                                                  //
      5 // Copyright (C) Microsoft Corporation. All rights reserved.                 //
      6 // This file is distributed under the University of Illinois Open Source     //
      7 // License. See LICENSE.TXT for details.                                     //
      8 //                                                                           //
      9 // Provides declarations for the DirectX Compiler API entry point.           //
     10 //                                                                           //
     11 ///////////////////////////////////////////////////////////////////////////////
     12 
     13 #ifndef __DXC_API__
     14 #define __DXC_API__
     15 
     16 #ifdef _WIN32
     17 #ifndef DXC_API_IMPORT
     18 #define DXC_API_IMPORT __declspec(dllimport)
     19 #endif
     20 #else
     21 #ifndef DXC_API_IMPORT
     22 #define DXC_API_IMPORT __attribute__ ((visibility ("default")))
     23 #endif
     24 #endif
     25 
     26 #ifdef _WIN32
     27 
     28 #ifndef CROSS_PLATFORM_UUIDOF
     29 // Warning: This macro exists in WinAdapter.h as well
     30 #define CROSS_PLATFORM_UUIDOF(interface, spec)                                 \
     31   struct __declspec(uuid(spec)) interface;
     32 #endif
     33 
     34 #else
     35 
     36 constexpr uint8_t nybble_from_hex(char c) {
     37    return ((c >= '0' && c <= '9')
     38                ? (c - '0')
     39                : ((c >= 'a' && c <= 'f')
     40                   ? (c - 'a' + 10)
     41                   : ((c >= 'A' && c <= 'F') ? (c - 'A' + 10)
     42                      : /* Should be an error */ -1)));
     43 }
     44 
     45 constexpr uint8_t byte_from_hex(char c1, char c2) {
     46    return nybble_from_hex(c1) << 4 | nybble_from_hex(c2);
     47 }
     48 
     49 constexpr uint8_t byte_from_hexstr(const char str[2]) {
     50    return nybble_from_hex(str[0]) << 4 | nybble_from_hex(str[1]);
     51 }
     52 
     53 constexpr GUID guid_from_string(const char str[37]) {
     54    return GUID{ static_cast<uint32_t>(byte_from_hexstr(str)) << 24 |
     55                    static_cast<uint32_t>(byte_from_hexstr(str + 2)) << 16 |
     56                    static_cast<uint32_t>(byte_from_hexstr(str + 4)) << 8 |
     57                    byte_from_hexstr(str + 6),
     58                static_cast<uint16_t>(
     59                    static_cast<uint16_t>(byte_from_hexstr(str + 9)) << 8 |
     60                    byte_from_hexstr(str + 11)),
     61                static_cast<uint16_t>(
     62                    static_cast<uint16_t>(byte_from_hexstr(str + 14)) << 8 |
     63                    byte_from_hexstr(str + 16)),
     64                {byte_from_hexstr(str + 19), byte_from_hexstr(str + 21),
     65                 byte_from_hexstr(str + 24), byte_from_hexstr(str + 26),
     66                 byte_from_hexstr(str + 28), byte_from_hexstr(str + 30),
     67                 byte_from_hexstr(str + 32), byte_from_hexstr(str + 34)} };
     68 }
     69 
     70 #define CROSS_PLATFORM_UUIDOF(interface, spec)                                 \
     71   struct interface;                                                            \
     72   template <> constexpr GUID uuidof<interface>() {                             \
     73     constexpr IID _IID = guid_from_string(spec);                            \
     74     return _IID;                                                               \
     75   }
     76 
     77 
     78 CROSS_PLATFORM_UUIDOF(INoMarshal, "ECC8691B-C1DB-4DC0-855E-65F6C551AF49")
     79 struct INoMarshal : public IUnknown {};
     80 
     81 CROSS_PLATFORM_UUIDOF(IMalloc, "00000002-0000-0000-C000-000000000046")
     82 struct IMalloc : public IUnknown {
     83    virtual void *Alloc(size_t size);
     84    virtual void *Realloc(void *ptr, size_t size);
     85    virtual void Free(void *ptr);
     86    virtual HRESULT QueryInterface(REFIID riid, void **ppvObject);
     87 };
     88 
     89 CROSS_PLATFORM_UUIDOF(ISequentialStream, "0C733A30-2A1C-11CE-ADE5-00AA0044773D")
     90 struct ISequentialStream : public IUnknown {
     91    virtual HRESULT Read(void *pv, ULONG cb, ULONG *pcbRead) = 0;
     92    virtual HRESULT Write(const void *pv, ULONG cb, ULONG *pcbWritten) = 0;
     93 };
     94 
     95 CROSS_PLATFORM_UUIDOF(IStream, "0000000c-0000-0000-C000-000000000046")
     96 struct IStream : public ISequentialStream {
     97    virtual HRESULT Seek(LARGE_INTEGER dlibMove, DWORD dwOrigin,
     98                         ULARGE_INTEGER *plibNewPosition) = 0;
     99    virtual HRESULT SetSize(ULARGE_INTEGER libNewSize) = 0;
    100    virtual HRESULT CopyTo(IStream *pstm, ULARGE_INTEGER cb,
    101                           ULARGE_INTEGER *pcbRead,
    102                           ULARGE_INTEGER *pcbWritten) = 0;
    103 
    104    virtual HRESULT Commit(DWORD grfCommitFlags) = 0;
    105 
    106    virtual HRESULT Revert(void) = 0;
    107 
    108    virtual HRESULT LockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb,
    109                               DWORD dwLockType) = 0;
    110 
    111    virtual HRESULT UnlockRegion(ULARGE_INTEGER libOffset, ULARGE_INTEGER cb,
    112                                 DWORD dwLockType) = 0;
    113 
    114    virtual HRESULT Stat(STATSTG *pstatstg, DWORD grfStatFlag) = 0;
    115 
    116    virtual HRESULT Clone(IStream **ppstm) = 0;
    117 };
    118 
    119 #endif
    120 
    121 struct IMalloc;
    122 
    123 struct IDxcIncludeHandler;
    124 
    125 typedef HRESULT (__stdcall *DxcCreateInstanceProc)(
    126     _In_ REFCLSID   rclsid,
    127     _In_ REFIID     riid,
    128     _Out_ LPVOID*   ppv
    129 );
    130 
    131 typedef HRESULT(__stdcall *DxcCreateInstance2Proc)(
    132   _In_ IMalloc    *pMalloc,
    133   _In_ REFCLSID   rclsid,
    134   _In_ REFIID     riid,
    135   _Out_ LPVOID*   ppv
    136   );
    137 
    138 /// <summary>
    139 /// Creates a single uninitialized object of the class associated with a specified CLSID.
    140 /// </summary>
    141 /// <param name="rclsid">
    142 /// The CLSID associated with the data and code that will be used to create the object.
    143 /// </param>
    144 /// <param name="riid">
    145 /// A reference to the identifier of the interface to be used to communicate
    146 /// with the object.
    147 /// </param>
    148 /// <param name="ppv">
    149 /// Address of pointer variable that receives the interface pointer requested
    150 /// in riid. Upon successful return, *ppv contains the requested interface
    151 /// pointer. Upon failure, *ppv contains NULL.</param>
    152 /// <remarks>
    153 /// While this function is similar to CoCreateInstance, there is no COM involvement.
    154 /// </remarks>
    155 
    156 extern "C"
    157 DXC_API_IMPORT HRESULT __stdcall DxcCreateInstance(
    158   _In_ REFCLSID   rclsid,
    159   _In_ REFIID     riid,
    160   _Out_ LPVOID*   ppv
    161   );
    162 
    163 extern "C"
    164 DXC_API_IMPORT HRESULT __stdcall DxcCreateInstance2(
    165   _In_ IMalloc    *pMalloc,
    166   _In_ REFCLSID   rclsid,
    167   _In_ REFIID     riid,
    168   _Out_ LPVOID*   ppv
    169 );
    170 
    171 // For convenience, equivalent definitions to CP_UTF8 and CP_UTF16.
    172 #define DXC_CP_UTF8 65001
    173 #define DXC_CP_UTF16 1200
    174 // Use DXC_CP_ACP for: Binary;  ANSI Text;  Autodetect UTF with BOM
    175 #define DXC_CP_ACP 0
    176 
    177 // This flag indicates that the shader hash was computed taking into account source information (-Zss)
    178 #define DXC_HASHFLAG_INCLUDES_SOURCE  1
    179 
    180 // Hash digest type for ShaderHash
    181 typedef struct DxcShaderHash {
    182   UINT32 Flags; // DXC_HASHFLAG_*
    183   BYTE HashDigest[16];
    184 } DxcShaderHash;
    185 
    186 #define DXC_FOURCC(ch0, ch1, ch2, ch3) (                     \
    187   (UINT32)(UINT8)(ch0)        | (UINT32)(UINT8)(ch1) << 8  | \
    188   (UINT32)(UINT8)(ch2) << 16  | (UINT32)(UINT8)(ch3) << 24   \
    189   )
    190 #define DXC_PART_PDB                      DXC_FOURCC('I', 'L', 'D', 'B')
    191 #define DXC_PART_PDB_NAME                 DXC_FOURCC('I', 'L', 'D', 'N')
    192 #define DXC_PART_PRIVATE_DATA             DXC_FOURCC('P', 'R', 'I', 'V')
    193 #define DXC_PART_ROOT_SIGNATURE           DXC_FOURCC('R', 'T', 'S', '0')
    194 #define DXC_PART_DXIL                     DXC_FOURCC('D', 'X', 'I', 'L')
    195 #define DXC_PART_REFLECTION_DATA          DXC_FOURCC('S', 'T', 'A', 'T')
    196 #define DXC_PART_SHADER_HASH              DXC_FOURCC('H', 'A', 'S', 'H')
    197 #define DXC_PART_INPUT_SIGNATURE          DXC_FOURCC('I', 'S', 'G', '1')
    198 #define DXC_PART_OUTPUT_SIGNATURE         DXC_FOURCC('O', 'S', 'G', '1')
    199 #define DXC_PART_PATCH_CONSTANT_SIGNATURE DXC_FOURCC('P', 'S', 'G', '1')
    200 
    201 // Some option arguments are defined here for continuity with D3DCompile interface
    202 #define DXC_ARG_DEBUG L"-Zi"
    203 #define DXC_ARG_SKIP_VALIDATION L"-Vd"
    204 #define DXC_ARG_SKIP_OPTIMIZATIONS L"-Od"
    205 #define DXC_ARG_PACK_MATRIX_ROW_MAJOR L"-Zpr"
    206 #define DXC_ARG_PACK_MATRIX_COLUMN_MAJOR L"-Zpc"
    207 #define DXC_ARG_AVOID_FLOW_CONTROL L"-Gfa"
    208 #define DXC_ARG_PREFER_FLOW_CONTROL L"-Gfp"
    209 #define DXC_ARG_ENABLE_STRICTNESS L"-Ges"
    210 #define DXC_ARG_ENABLE_BACKWARDS_COMPATIBILITY L"-Gec"
    211 #define DXC_ARG_IEEE_STRICTNESS L"-Gis"
    212 #define DXC_ARG_OPTIMIZATION_LEVEL0 L"-O0"
    213 #define DXC_ARG_OPTIMIZATION_LEVEL1 L"-O1"
    214 #define DXC_ARG_OPTIMIZATION_LEVEL2 L"-O2"
    215 #define DXC_ARG_OPTIMIZATION_LEVEL3 L"-O3"
    216 #define DXC_ARG_WARNINGS_ARE_ERRORS L"-WX"
    217 #define DXC_ARG_RESOURCES_MAY_ALIAS L"-res_may_alias"
    218 #define DXC_ARG_ALL_RESOURCES_BOUND L"-all_resources_bound"
    219 #define DXC_ARG_DEBUG_NAME_FOR_SOURCE L"-Zss"
    220 #define DXC_ARG_DEBUG_NAME_FOR_BINARY L"-Zsb"
    221 
    222 // IDxcBlob is an alias of ID3D10Blob and ID3DBlob
    223 CROSS_PLATFORM_UUIDOF(IDxcBlob, "8BA5FB08-5195-40e2-AC58-0D989C3A0102")
    224 struct IDxcBlob : public IUnknown {
    225 public:
    226   virtual LPVOID STDMETHODCALLTYPE GetBufferPointer(void) = 0;
    227   virtual SIZE_T STDMETHODCALLTYPE GetBufferSize(void) = 0;
    228 };
    229 
    230 CROSS_PLATFORM_UUIDOF(IDxcBlobEncoding, "7241d424-2646-4191-97c0-98e96e42fc68")
    231 struct IDxcBlobEncoding : public IDxcBlob {
    232 public:
    233   virtual HRESULT STDMETHODCALLTYPE GetEncoding(_Out_ BOOL *pKnown,
    234                                                 _Out_ UINT32 *pCodePage) = 0;
    235 };
    236 
    237 // Notes on IDxcBlobUtf16 and IDxcBlobUtf8
    238 // These guarantee null-terminated text and the stated encoding.
    239 // GetBufferSize() will return the size in bytes, including null-terminator
    240 // GetStringLength() will return the length in characters, excluding the null-terminator
    241 // Name strings will use IDxcBlobUtf16, while other string output blobs,
    242 // such as errors/warnings, preprocessed HLSL, or other text will be based
    243 // on the -encoding option.
    244 
    245 // The API will use this interface for output name strings
    246 CROSS_PLATFORM_UUIDOF(IDxcBlobUtf16, "A3F84EAB-0FAA-497E-A39C-EE6ED60B2D84")
    247 struct IDxcBlobUtf16 : public IDxcBlobEncoding {
    248 public:
    249   virtual LPCWSTR STDMETHODCALLTYPE GetStringPointer(void) = 0;
    250   virtual SIZE_T STDMETHODCALLTYPE GetStringLength(void) = 0;
    251 };
    252 CROSS_PLATFORM_UUIDOF(IDxcBlobUtf8, "3DA636C9-BA71-4024-A301-30CBF125305B")
    253 struct IDxcBlobUtf8 : public IDxcBlobEncoding {
    254 public:
    255   virtual LPCSTR STDMETHODCALLTYPE GetStringPointer(void) = 0;
    256   virtual SIZE_T STDMETHODCALLTYPE GetStringLength(void) = 0;
    257 };
    258 
    259 CROSS_PLATFORM_UUIDOF(IDxcIncludeHandler, "7f61fc7d-950d-467f-b3e3-3c02fb49187c")
    260 struct IDxcIncludeHandler : public IUnknown {
    261   virtual HRESULT STDMETHODCALLTYPE LoadSource(
    262     _In_z_ LPCWSTR pFilename,                                 // Candidate filename.
    263     _COM_Outptr_result_maybenull_ IDxcBlob **ppIncludeSource  // Resultant source object for included file, nullptr if not found.
    264     ) = 0;
    265 };
    266 
    267 // Structure for supplying bytes or text input to Dxc APIs.
    268 // Use Encoding = 0 for non-text bytes, ANSI text, or unknown with BOM.
    269 typedef struct DxcBuffer {
    270   LPCVOID Ptr;
    271   SIZE_T Size;
    272   UINT Encoding;
    273 } DxcText;
    274 
    275 struct DxcDefine {
    276   LPCWSTR Name;
    277   _Maybenull_ LPCWSTR Value;
    278 };
    279 
    280 CROSS_PLATFORM_UUIDOF(IDxcCompilerArgs, "73EFFE2A-70DC-45F8-9690-EFF64C02429D")
    281 struct IDxcCompilerArgs : public IUnknown {
    282   // Pass GetArguments() and GetCount() to Compile
    283   virtual LPCWSTR* STDMETHODCALLTYPE GetArguments() = 0;
    284   virtual UINT32 STDMETHODCALLTYPE GetCount() = 0;
    285 
    286   // Add additional arguments or defines here, if desired.
    287   virtual HRESULT STDMETHODCALLTYPE AddArguments(
    288     _In_opt_count_(argCount) LPCWSTR *pArguments,       // Array of pointers to arguments to add
    289     _In_ UINT32 argCount                                // Number of arguments to add
    290   ) = 0;
    291   virtual HRESULT STDMETHODCALLTYPE AddArgumentsUTF8(
    292     _In_opt_count_(argCount)LPCSTR *pArguments,         // Array of pointers to UTF-8 arguments to add
    293     _In_ UINT32 argCount                                // Number of arguments to add
    294   ) = 0;
    295   virtual HRESULT STDMETHODCALLTYPE AddDefines(
    296       _In_count_(defineCount) const DxcDefine *pDefines, // Array of defines
    297       _In_ UINT32 defineCount                            // Number of defines
    298   ) = 0;
    299 };
    300 
    301 //////////////////////////
    302 // Legacy Interfaces
    303 /////////////////////////
    304 
    305 // NOTE: IDxcUtils replaces IDxcLibrary
    306 CROSS_PLATFORM_UUIDOF(IDxcLibrary, "e5204dc7-d18c-4c3c-bdfb-851673980fe7")
    307 struct IDxcLibrary : public IUnknown {
    308   virtual HRESULT STDMETHODCALLTYPE SetMalloc(_In_opt_ IMalloc *pMalloc) = 0;
    309   virtual HRESULT STDMETHODCALLTYPE CreateBlobFromBlob(
    310     _In_ IDxcBlob *pBlob, UINT32 offset, UINT32 length, _COM_Outptr_ IDxcBlob **ppResult) = 0;
    311   virtual HRESULT STDMETHODCALLTYPE CreateBlobFromFile(
    312     _In_z_ LPCWSTR pFileName, _In_opt_ UINT32* codePage,
    313     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    314   virtual HRESULT STDMETHODCALLTYPE CreateBlobWithEncodingFromPinned(
    315     _In_bytecount_(size) LPCVOID pText, UINT32 size, UINT32 codePage,
    316     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    317   virtual HRESULT STDMETHODCALLTYPE CreateBlobWithEncodingOnHeapCopy(
    318     _In_bytecount_(size) LPCVOID pText, UINT32 size, UINT32 codePage,
    319     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    320   virtual HRESULT STDMETHODCALLTYPE CreateBlobWithEncodingOnMalloc(
    321     _In_bytecount_(size) LPCVOID pText, IMalloc *pIMalloc, UINT32 size, UINT32 codePage,
    322     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    323   virtual HRESULT STDMETHODCALLTYPE CreateIncludeHandler(
    324     _COM_Outptr_ IDxcIncludeHandler **ppResult) = 0;
    325   virtual HRESULT STDMETHODCALLTYPE CreateStreamFromBlobReadOnly(
    326     _In_ IDxcBlob *pBlob, _COM_Outptr_ IStream **ppStream) = 0;
    327   virtual HRESULT STDMETHODCALLTYPE GetBlobAsUtf8(
    328     _In_ IDxcBlob *pBlob, _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    329   virtual HRESULT STDMETHODCALLTYPE GetBlobAsUtf16(
    330     _In_ IDxcBlob *pBlob, _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    331 };
    332 
    333 // NOTE: IDxcResult replaces IDxcOperationResult
    334 CROSS_PLATFORM_UUIDOF(IDxcOperationResult, "CEDB484A-D4E9-445A-B991-CA21CA157DC2")
    335 struct IDxcOperationResult : public IUnknown {
    336   virtual HRESULT STDMETHODCALLTYPE GetStatus(_Out_ HRESULT *pStatus) = 0;
    337 
    338   // GetResult returns the main result of the operation.
    339   // This corresponds to:
    340   // DXC_OUT_OBJECT - Compile() with shader or library target
    341   // DXC_OUT_DISASSEMBLY - Disassemble()
    342   // DXC_OUT_HLSL - Compile() with -P
    343   // DXC_OUT_ROOT_SIGNATURE - Compile() with rootsig_* target
    344   virtual HRESULT STDMETHODCALLTYPE GetResult(_COM_Outptr_result_maybenull_ IDxcBlob **ppResult) = 0;
    345 
    346   // GetErrorBuffer Corresponds to DXC_OUT_ERRORS.
    347   virtual HRESULT STDMETHODCALLTYPE GetErrorBuffer(_COM_Outptr_result_maybenull_ IDxcBlobEncoding **ppErrors) = 0;
    348 };
    349 
    350 // NOTE: IDxcCompiler3 replaces IDxcCompiler and IDxcCompiler2
    351 CROSS_PLATFORM_UUIDOF(IDxcCompiler, "8c210bf3-011f-4422-8d70-6f9acb8db617")
    352 struct IDxcCompiler : public IUnknown {
    353   // Compile a single entry point to the target shader model
    354   virtual HRESULT STDMETHODCALLTYPE Compile(
    355     _In_ IDxcBlob *pSource,                       // Source text to compile
    356     _In_opt_z_ LPCWSTR pSourceName,               // Optional file name for pSource. Used in errors and include handlers.
    357     _In_opt_z_ LPCWSTR pEntryPoint,               // entry point name
    358     _In_z_ LPCWSTR pTargetProfile,                // shader profile to compile
    359     _In_opt_count_(argCount) LPCWSTR *pArguments, // Array of pointers to arguments
    360     _In_ UINT32 argCount,                         // Number of arguments
    361     _In_count_(defineCount)
    362       const DxcDefine *pDefines,                  // Array of defines
    363     _In_ UINT32 defineCount,                      // Number of defines
    364     _In_opt_ IDxcIncludeHandler *pIncludeHandler, // user-provided interface to handle #include directives (optional)
    365     _COM_Outptr_ IDxcOperationResult **ppResult   // Compiler output status, buffer, and errors
    366   ) = 0;
    367 
    368   // Preprocess source text
    369   virtual HRESULT STDMETHODCALLTYPE Preprocess(
    370     _In_ IDxcBlob *pSource,                       // Source text to preprocess
    371     _In_opt_z_ LPCWSTR pSourceName,               // Optional file name for pSource. Used in errors and include handlers.
    372     _In_opt_count_(argCount) LPCWSTR *pArguments, // Array of pointers to arguments
    373     _In_ UINT32 argCount,                         // Number of arguments
    374     _In_count_(defineCount)
    375       const DxcDefine *pDefines,                  // Array of defines
    376     _In_ UINT32 defineCount,                      // Number of defines
    377     _In_opt_ IDxcIncludeHandler *pIncludeHandler, // user-provided interface to handle #include directives (optional)
    378     _COM_Outptr_ IDxcOperationResult **ppResult   // Preprocessor output status, buffer, and errors
    379   ) = 0;
    380 
    381   // Disassemble a program.
    382   virtual HRESULT STDMETHODCALLTYPE Disassemble(
    383     _In_ IDxcBlob *pSource,                         // Program to disassemble.
    384     _COM_Outptr_ IDxcBlobEncoding **ppDisassembly   // Disassembly text.
    385     ) = 0;
    386 };
    387 
    388 // NOTE: IDxcCompiler3 replaces IDxcCompiler and IDxcCompiler2
    389 CROSS_PLATFORM_UUIDOF(IDxcCompiler2, "A005A9D9-B8BB-4594-B5C9-0E633BEC4D37")
    390 struct IDxcCompiler2 : public IDxcCompiler {
    391   // Compile a single entry point to the target shader model with debug information.
    392   virtual HRESULT STDMETHODCALLTYPE CompileWithDebug(
    393     _In_ IDxcBlob *pSource,                       // Source text to compile
    394     _In_opt_z_ LPCWSTR pSourceName,               // Optional file name for pSource. Used in errors and include handlers.
    395     _In_opt_z_ LPCWSTR pEntryPoint,               // Entry point name
    396     _In_z_ LPCWSTR pTargetProfile,                // Shader profile to compile
    397     _In_opt_count_(argCount) LPCWSTR *pArguments, // Array of pointers to arguments
    398     _In_ UINT32 argCount,                         // Number of arguments
    399     _In_count_(defineCount)
    400       const DxcDefine *pDefines,                  // Array of defines
    401     _In_ UINT32 defineCount,                      // Number of defines
    402     _In_opt_ IDxcIncludeHandler *pIncludeHandler, // user-provided interface to handle #include directives (optional)
    403     _COM_Outptr_ IDxcOperationResult **ppResult,  // Compiler output status, buffer, and errors
    404     _Outptr_opt_result_z_ LPWSTR *ppDebugBlobName,// Suggested file name for debug blob. (Must be HeapFree()'d!)
    405     _COM_Outptr_opt_ IDxcBlob **ppDebugBlob       // Debug blob
    406   ) = 0;
    407 };
    408 
    409 CROSS_PLATFORM_UUIDOF(IDxcLinker, "F1B5BE2A-62DD-4327-A1C2-42AC1E1E78E6")
    410 struct IDxcLinker : public IUnknown {
    411 public:
    412   // Register a library with name to ref it later.
    413   virtual HRESULT RegisterLibrary(
    414     _In_opt_ LPCWSTR pLibName,          // Name of the library.
    415     _In_ IDxcBlob *pLib                 // Library blob.
    416   ) = 0;
    417 
    418   // Links the shader and produces a shader blob that the Direct3D runtime can
    419   // use.
    420   virtual HRESULT STDMETHODCALLTYPE Link(
    421     _In_opt_ LPCWSTR pEntryName,        // Entry point name
    422     _In_ LPCWSTR pTargetProfile,        // shader profile to link
    423     _In_count_(libCount)
    424         const LPCWSTR *pLibNames,       // Array of library names to link
    425     _In_ UINT32 libCount,               // Number of libraries to link
    426     _In_opt_count_(argCount) const LPCWSTR *pArguments, // Array of pointers to arguments
    427     _In_ UINT32 argCount,               // Number of arguments
    428     _COM_Outptr_
    429         IDxcOperationResult **ppResult  // Linker output status, buffer, and errors
    430   ) = 0;
    431 };
    432 
    433 /////////////////////////
    434 // Latest interfaces. Please use these
    435 ////////////////////////
    436 
    437 // NOTE: IDxcUtils replaces IDxcLibrary
    438 CROSS_PLATFORM_UUIDOF(IDxcUtils, "4605C4CB-2019-492A-ADA4-65F20BB7D67F")
    439 struct IDxcUtils : public IUnknown {
    440   // Create a sub-blob that holds a reference to the outer blob and points to its memory.
    441   virtual HRESULT STDMETHODCALLTYPE CreateBlobFromBlob(
    442     _In_ IDxcBlob *pBlob, UINT32 offset, UINT32 length, _COM_Outptr_ IDxcBlob **ppResult) = 0;
    443 
    444   // For codePage, use 0 (or DXC_CP_ACP) for raw binary or ANSI code page
    445 
    446   // Creates a blob referencing existing memory, with no copy.
    447   // User must manage the memory lifetime separately.
    448   // (was: CreateBlobWithEncodingFromPinned)
    449   virtual HRESULT STDMETHODCALLTYPE CreateBlobFromPinned(
    450     _In_bytecount_(size) LPCVOID pData, UINT32 size, UINT32 codePage,
    451     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    452 
    453   // Create blob, taking ownership of memory allocated with supplied allocator.
    454   // (was: CreateBlobWithEncodingOnMalloc)
    455   virtual HRESULT STDMETHODCALLTYPE MoveToBlob(
    456     _In_bytecount_(size) LPCVOID pData, IMalloc *pIMalloc, UINT32 size, UINT32 codePage,
    457     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    458 
    459   ////
    460   // New blobs and copied contents are allocated with the current allocator
    461 
    462   // Copy blob contents to memory owned by the new blob.
    463   // (was: CreateBlobWithEncodingOnHeapCopy)
    464   virtual HRESULT STDMETHODCALLTYPE CreateBlob(
    465     _In_bytecount_(size) LPCVOID pData, UINT32 size, UINT32 codePage,
    466     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    467 
    468   // (was: CreateBlobFromFile)
    469   virtual HRESULT STDMETHODCALLTYPE LoadFile(
    470     _In_z_ LPCWSTR pFileName, _In_opt_ UINT32* pCodePage,
    471     _COM_Outptr_ IDxcBlobEncoding **pBlobEncoding) = 0;
    472 
    473   virtual HRESULT STDMETHODCALLTYPE CreateReadOnlyStreamFromBlob(
    474     _In_ IDxcBlob *pBlob, _COM_Outptr_ IStream **ppStream) = 0;
    475 
    476   // Create default file-based include handler
    477   virtual HRESULT STDMETHODCALLTYPE CreateDefaultIncludeHandler(
    478     _COM_Outptr_ IDxcIncludeHandler **ppResult) = 0;
    479 
    480   // Convert or return matching encoded text blobs
    481   virtual HRESULT STDMETHODCALLTYPE GetBlobAsUtf8(
    482     _In_ IDxcBlob *pBlob, _COM_Outptr_ IDxcBlobUtf8 **pBlobEncoding) = 0;
    483   virtual HRESULT STDMETHODCALLTYPE GetBlobAsUtf16(
    484     _In_ IDxcBlob *pBlob, _COM_Outptr_ IDxcBlobUtf16 **pBlobEncoding) = 0;
    485 
    486   virtual HRESULT STDMETHODCALLTYPE GetDxilContainerPart(
    487     _In_ const DxcBuffer *pShader,
    488     _In_ UINT32 DxcPart,
    489     _Outptr_result_nullonfailure_ void **ppPartData,
    490     _Out_ UINT32 *pPartSizeInBytes) = 0;
    491 
    492   // Create reflection interface from serialized Dxil container, or DXC_PART_REFLECTION_DATA.
    493   // TBD: Require part header for RDAT?  (leaning towards yes)
    494   virtual HRESULT STDMETHODCALLTYPE CreateReflection(
    495     _In_ const DxcBuffer *pData, REFIID iid, void **ppvReflection) = 0;
    496 
    497   virtual HRESULT STDMETHODCALLTYPE BuildArguments(
    498     _In_opt_z_ LPCWSTR pSourceName,               // Optional file name for pSource. Used in errors and include handlers.
    499     _In_opt_z_ LPCWSTR pEntryPoint,               // Entry point name. (-E)
    500     _In_z_ LPCWSTR pTargetProfile,                // Shader profile to compile. (-T)
    501     _In_opt_count_(argCount) LPCWSTR *pArguments, // Array of pointers to arguments
    502     _In_ UINT32 argCount,                         // Number of arguments
    503     _In_count_(defineCount)
    504       const DxcDefine *pDefines,                  // Array of defines
    505     _In_ UINT32 defineCount,                      // Number of defines
    506     _COM_Outptr_ IDxcCompilerArgs **ppArgs        // Arguments you can use with Compile() method
    507   ) = 0;
    508 
    509   // Takes the shader PDB and returns the hash and the container inside it
    510   virtual HRESULT STDMETHODCALLTYPE GetPDBContents(
    511     _In_ IDxcBlob *pPDBBlob, _COM_Outptr_ IDxcBlob **ppHash, _COM_Outptr_ IDxcBlob **ppContainer) = 0;
    512 };
    513 
    514 // For use with IDxcResult::[Has|Get]Output dxcOutKind argument
    515 // Note: text outputs returned from version 2 APIs are UTF-8 or UTF-16 based on -encoding option
    516 typedef enum DXC_OUT_KIND {
    517   DXC_OUT_NONE = 0,
    518   DXC_OUT_OBJECT = 1,         // IDxcBlob - Shader or library object
    519   DXC_OUT_ERRORS = 2,         // IDxcBlobUtf8 or IDxcBlobUtf16
    520   DXC_OUT_PDB = 3,            // IDxcBlob
    521   DXC_OUT_SHADER_HASH = 4,    // IDxcBlob - DxcShaderHash of shader or shader with source info (-Zsb/-Zss)
    522   DXC_OUT_DISASSEMBLY = 5,    // IDxcBlobUtf8 or IDxcBlobUtf16 - from Disassemble
    523   DXC_OUT_HLSL = 6,           // IDxcBlobUtf8 or IDxcBlobUtf16 - from Preprocessor or Rewriter
    524   DXC_OUT_TEXT = 7,           // IDxcBlobUtf8 or IDxcBlobUtf16 - other text, such as -ast-dump or -Odump
    525   DXC_OUT_REFLECTION = 8,     // IDxcBlob - RDAT part with reflection data
    526   DXC_OUT_ROOT_SIGNATURE = 9, // IDxcBlob - Serialized root signature output
    527   DXC_OUT_EXTRA_OUTPUTS  = 10,// IDxcExtraResults - Extra outputs
    528 
    529   DXC_OUT_FORCE_DWORD = 0xFFFFFFFF
    530 } DXC_OUT_KIND;
    531 
    532 CROSS_PLATFORM_UUIDOF(IDxcResult, "58346CDA-DDE7-4497-9461-6F87AF5E0659")
    533 struct IDxcResult : public IDxcOperationResult {
    534   virtual BOOL STDMETHODCALLTYPE HasOutput(_In_ DXC_OUT_KIND dxcOutKind) = 0;
    535   virtual HRESULT STDMETHODCALLTYPE GetOutput(_In_ DXC_OUT_KIND dxcOutKind,
    536     _In_ REFIID iid, _COM_Outptr_opt_result_maybenull_ void **ppvObject,
    537     _COM_Outptr_ IDxcBlobUtf16 **ppOutputName) = 0;
    538 
    539   virtual UINT32 GetNumOutputs() = 0;
    540   virtual DXC_OUT_KIND GetOutputByIndex(UINT32 Index) = 0;
    541   virtual DXC_OUT_KIND PrimaryOutput() = 0;
    542 };
    543 
    544 // Special names for extra output that should get written to specific streams
    545 #define DXC_EXTRA_OUTPUT_NAME_STDOUT L"*stdout*"
    546 #define DXC_EXTRA_OUTPUT_NAME_STDERR L"*stderr*"
    547 
    548 CROSS_PLATFORM_UUIDOF(IDxcExtraOutputs, "319b37a2-a5c2-494a-a5de-4801b2faf989")
    549 struct IDxcExtraOutputs : public IUnknown {
    550 
    551   virtual UINT32 STDMETHODCALLTYPE GetOutputCount() = 0;
    552   virtual HRESULT STDMETHODCALLTYPE GetOutput(_In_ UINT32 uIndex,
    553     _In_ REFIID iid, _COM_Outptr_opt_result_maybenull_ void **ppvObject,
    554     _COM_Outptr_opt_result_maybenull_ IDxcBlobUtf16 **ppOutputType,
    555     _COM_Outptr_opt_result_maybenull_ IDxcBlobUtf16 **ppOutputName) = 0;
    556 };
    557 
    558 CROSS_PLATFORM_UUIDOF(IDxcCompiler3, "228B4687-5A6A-4730-900C-9702B2203F54")
    559 struct IDxcCompiler3 : public IUnknown {
    560   // Compile a single entry point to the target shader model,
    561   // Compile a library to a library target (-T lib_*),
    562   // Compile a root signature (-T rootsig_*), or
    563   // Preprocess HLSL source (-P)
    564   virtual HRESULT STDMETHODCALLTYPE Compile(
    565     _In_ const DxcBuffer *pSource,                // Source text to compile
    566     _In_opt_count_(argCount) LPCWSTR *pArguments, // Array of pointers to arguments
    567     _In_ UINT32 argCount,                         // Number of arguments
    568     _In_opt_ IDxcIncludeHandler *pIncludeHandler, // user-provided interface to handle #include directives (optional)
    569     _In_ REFIID riid, _Out_ LPVOID *ppResult      // IDxcResult: status, buffer, and errors
    570   ) = 0;
    571 
    572   // Disassemble a program.
    573   virtual HRESULT STDMETHODCALLTYPE Disassemble(
    574     _In_ const DxcBuffer *pObject,                // Program to disassemble: dxil container or bitcode.
    575     _In_ REFIID riid, _Out_ LPVOID *ppResult      // IDxcResult: status, disassembly text, and errors
    576     ) = 0;
    577 };
    578 
    579 static const UINT32 DxcValidatorFlags_Default = 0;
    580 static const UINT32 DxcValidatorFlags_InPlaceEdit = 1;  // Validator is allowed to update shader blob in-place.
    581 static const UINT32 DxcValidatorFlags_RootSignatureOnly = 2;
    582 static const UINT32 DxcValidatorFlags_ModuleOnly = 4;
    583 static const UINT32 DxcValidatorFlags_ValidMask = 0x7;
    584 
    585 CROSS_PLATFORM_UUIDOF(IDxcValidator, "A6E82BD2-1FD7-4826-9811-2857E797F49A")
    586 struct IDxcValidator : public IUnknown {
    587   // Validate a shader.
    588   virtual HRESULT STDMETHODCALLTYPE Validate(
    589     _In_ IDxcBlob *pShader,                       // Shader to validate.
    590     _In_ UINT32 Flags,                            // Validation flags.
    591     _COM_Outptr_ IDxcOperationResult **ppResult   // Validation output status, buffer, and errors
    592     ) = 0;
    593 };
    594 
    595 CROSS_PLATFORM_UUIDOF(IDxcContainerBuilder, "334b1f50-2292-4b35-99a1-25588d8c17fe")
    596 struct IDxcContainerBuilder : public IUnknown {
    597   virtual HRESULT STDMETHODCALLTYPE Load(_In_ IDxcBlob *pDxilContainerHeader) = 0;                // Loads DxilContainer to the builder
    598   virtual HRESULT STDMETHODCALLTYPE AddPart(_In_ UINT32 fourCC, _In_ IDxcBlob *pSource) = 0;      // Part to add to the container
    599   virtual HRESULT STDMETHODCALLTYPE RemovePart(_In_ UINT32 fourCC) = 0;                           // Remove the part with fourCC
    600   virtual HRESULT STDMETHODCALLTYPE SerializeContainer(_Out_ IDxcOperationResult **ppResult) = 0; // Builds a container of the given container builder state
    601 };
    602 
    603 CROSS_PLATFORM_UUIDOF(IDxcAssembler, "091f7a26-1c1f-4948-904b-e6e3a8a771d5")
    604 struct IDxcAssembler : public IUnknown {
    605   // Assemble dxil in ll or llvm bitcode to DXIL container.
    606   virtual HRESULT STDMETHODCALLTYPE AssembleToContainer(
    607     _In_ IDxcBlob *pShader,                       // Shader to assemble.
    608     _COM_Outptr_ IDxcOperationResult **ppResult   // Assembly output status, buffer, and errors
    609     ) = 0;
    610 };
    611 
    612 CROSS_PLATFORM_UUIDOF(IDxcContainerReflection, "d2c21b26-8350-4bdc-976a-331ce6f4c54c")
    613 struct IDxcContainerReflection : public IUnknown {
    614   virtual HRESULT STDMETHODCALLTYPE Load(_In_ IDxcBlob *pContainer) = 0; // Container to load.
    615   virtual HRESULT STDMETHODCALLTYPE GetPartCount(_Out_ UINT32 *pResult) = 0;
    616   virtual HRESULT STDMETHODCALLTYPE GetPartKind(UINT32 idx, _Out_ UINT32 *pResult) = 0;
    617   virtual HRESULT STDMETHODCALLTYPE GetPartContent(UINT32 idx, _COM_Outptr_ IDxcBlob **ppResult) = 0;
    618   virtual HRESULT STDMETHODCALLTYPE FindFirstPartKind(UINT32 kind, _Out_ UINT32 *pResult) = 0;
    619   virtual HRESULT STDMETHODCALLTYPE GetPartReflection(UINT32 idx, REFIID iid, void **ppvObject) = 0;
    620 };
    621 
    622 CROSS_PLATFORM_UUIDOF(IDxcOptimizerPass, "AE2CD79F-CC22-453F-9B6B-B124E7A5204C")
    623 struct IDxcOptimizerPass : public IUnknown {
    624   virtual HRESULT STDMETHODCALLTYPE GetOptionName(_COM_Outptr_ LPWSTR *ppResult) = 0;
    625   virtual HRESULT STDMETHODCALLTYPE GetDescription(_COM_Outptr_ LPWSTR *ppResult) = 0;
    626   virtual HRESULT STDMETHODCALLTYPE GetOptionArgCount(_Out_ UINT32 *pCount) = 0;
    627   virtual HRESULT STDMETHODCALLTYPE GetOptionArgName(UINT32 argIndex, _COM_Outptr_ LPWSTR *ppResult) = 0;
    628   virtual HRESULT STDMETHODCALLTYPE GetOptionArgDescription(UINT32 argIndex, _COM_Outptr_ LPWSTR *ppResult) = 0;
    629 };
    630 
    631 CROSS_PLATFORM_UUIDOF(IDxcOptimizer, "25740E2E-9CBA-401B-9119-4FB42F39F270")
    632 struct IDxcOptimizer : public IUnknown {
    633   virtual HRESULT STDMETHODCALLTYPE GetAvailablePassCount(_Out_ UINT32 *pCount) = 0;
    634   virtual HRESULT STDMETHODCALLTYPE GetAvailablePass(UINT32 index, _COM_Outptr_ IDxcOptimizerPass** ppResult) = 0;
    635   virtual HRESULT STDMETHODCALLTYPE RunOptimizer(IDxcBlob *pBlob,
    636     _In_count_(optionCount) LPCWSTR *ppOptions, UINT32 optionCount,
    637     _COM_Outptr_ IDxcBlob **pOutputModule,
    638     _COM_Outptr_opt_ IDxcBlobEncoding **ppOutputText) = 0;
    639 };
    640 
    641 static const UINT32 DxcVersionInfoFlags_None = 0;
    642 static const UINT32 DxcVersionInfoFlags_Debug = 1; // Matches VS_FF_DEBUG
    643 static const UINT32 DxcVersionInfoFlags_Internal = 2; // Internal Validator (non-signing)
    644 
    645 CROSS_PLATFORM_UUIDOF(IDxcVersionInfo, "b04f5b50-2059-4f12-a8ff-a1e0cde1cc7e")
    646 struct IDxcVersionInfo : public IUnknown {
    647   virtual HRESULT STDMETHODCALLTYPE GetVersion(_Out_ UINT32 *pMajor, _Out_ UINT32 *pMinor) = 0;
    648   virtual HRESULT STDMETHODCALLTYPE GetFlags(_Out_ UINT32 *pFlags) = 0;
    649 };
    650 
    651 CROSS_PLATFORM_UUIDOF(IDxcVersionInfo2, "fb6904c4-42f0-4b62-9c46-983af7da7c83")
    652 struct IDxcVersionInfo2 : public IDxcVersionInfo {
    653   virtual HRESULT STDMETHODCALLTYPE GetCommitInfo(_Out_ UINT32 *pCommitCount, _Out_ char **pCommitHash) = 0;
    654 };
    655 
    656 // Note: __declspec(selectany) requires 'extern'
    657 // On Linux __declspec(selectany) is removed and using 'extern' results in link error.
    658 #ifdef _MSC_VER
    659 #define CLSID_SCOPE __declspec(selectany) extern
    660 #else
    661 #define CLSID_SCOPE
    662 #endif
    663 
    664 CLSID_SCOPE const CLSID CLSID_DxcCompiler = {
    665     0x73e22d93,
    666     0xe6ce,
    667     0x47f3,
    668     {0xb5, 0xbf, 0xf0, 0x66, 0x4f, 0x39, 0xc1, 0xb0}};
    669 
    670 // {EF6A8087-B0EA-4D56-9E45-D07E1A8B7806}
    671 CLSID_SCOPE const GUID CLSID_DxcLinker = {
    672     0xef6a8087,
    673     0xb0ea,
    674     0x4d56,
    675     {0x9e, 0x45, 0xd0, 0x7e, 0x1a, 0x8b, 0x78, 0x6}};
    676 
    677 // {CD1F6B73-2AB0-484D-8EDC-EBE7A43CA09F}
    678 CLSID_SCOPE const CLSID CLSID_DxcDiaDataSource = {
    679     0xcd1f6b73,
    680     0x2ab0,
    681     0x484d,
    682     {0x8e, 0xdc, 0xeb, 0xe7, 0xa4, 0x3c, 0xa0, 0x9f}};
    683 
    684 // {3E56AE82-224D-470F-A1A1-FE3016EE9F9D}
    685 CLSID_SCOPE const CLSID CLSID_DxcCompilerArgs = {
    686     0x3e56ae82,
    687     0x224d,
    688     0x470f,
    689     {0xa1, 0xa1, 0xfe, 0x30, 0x16, 0xee, 0x9f, 0x9d}};
    690 
    691 // {6245D6AF-66E0-48FD-80B4-4D271796748C}
    692 CLSID_SCOPE const GUID CLSID_DxcLibrary = {
    693     0x6245d6af,
    694     0x66e0,
    695     0x48fd,
    696     {0x80, 0xb4, 0x4d, 0x27, 0x17, 0x96, 0x74, 0x8c}};
    697 
    698 CLSID_SCOPE const GUID CLSID_DxcUtils = CLSID_DxcLibrary;
    699 
    700 // {8CA3E215-F728-4CF3-8CDD-88AF917587A1}
    701 CLSID_SCOPE const GUID CLSID_DxcValidator = {
    702     0x8ca3e215,
    703     0xf728,
    704     0x4cf3,
    705     {0x8c, 0xdd, 0x88, 0xaf, 0x91, 0x75, 0x87, 0xa1}};
    706 
    707 // {D728DB68-F903-4F80-94CD-DCCF76EC7151}
    708 CLSID_SCOPE const GUID CLSID_DxcAssembler = {
    709     0xd728db68,
    710     0xf903,
    711     0x4f80,
    712     {0x94, 0xcd, 0xdc, 0xcf, 0x76, 0xec, 0x71, 0x51}};
    713 
    714 // {b9f54489-55b8-400c-ba3a-1675e4728b91}
    715 CLSID_SCOPE const GUID CLSID_DxcContainerReflection = {
    716     0xb9f54489,
    717     0x55b8,
    718     0x400c,
    719     {0xba, 0x3a, 0x16, 0x75, 0xe4, 0x72, 0x8b, 0x91}};
    720 
    721 // {AE2CD79F-CC22-453F-9B6B-B124E7A5204C}
    722 CLSID_SCOPE const GUID CLSID_DxcOptimizer = {
    723     0xae2cd79f,
    724     0xcc22,
    725     0x453f,
    726     {0x9b, 0x6b, 0xb1, 0x24, 0xe7, 0xa5, 0x20, 0x4c}};
    727 
    728 // {94134294-411f-4574-b4d0-8741e25240d2}
    729 CLSID_SCOPE const GUID CLSID_DxcContainerBuilder = {
    730     0x94134294,
    731     0x411f,
    732     0x4574,
    733     {0xb4, 0xd0, 0x87, 0x41, 0xe2, 0x52, 0x40, 0xd2}};
    734 #endif
    735