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slang.h
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#ifndef SLANG_H
#define SLANG_H
#ifdef SLANG_USER_CONFIG
#include SLANG_USER_CONFIG
#endif
/** \file slang.h
The Slang API provides services to compile, reflect, and specialize code
written in the Slang shading language.
*/
/*
The following section attempts to detect the compiler and version in use.
If an application defines `SLANG_COMPILER` before including this header,
they take responsibility for setting any compiler-dependent macros
used later in the file.
Most applications should not need to touch this section.
*/
#ifndef SLANG_COMPILER
#define SLANG_COMPILER
/*
Compiler defines, see http://sourceforge.net/p/predef/wiki/Compilers/
NOTE that SLANG_VC holds the compiler version - not just 1 or 0
*/
#if defined(_MSC_VER)
#if _MSC_VER >= 1900
#define SLANG_VC 14
#elif _MSC_VER >= 1800
#define SLANG_VC 12
#elif _MSC_VER >= 1700
#define SLANG_VC 11
#elif _MSC_VER >= 1600
#define SLANG_VC 10
#elif _MSC_VER >= 1500
#define SLANG_VC 9
#else
#error "unknown version of Visual C++ compiler"
#endif
#elif defined(__clang__)
#define SLANG_CLANG 1
#elif defined(__SNC__)
#define SLANG_SNC 1
#elif defined(__ghs__)
#define SLANG_GHS 1
#elif defined(__GNUC__) /* note: __clang__, __SNC__, or __ghs__ imply __GNUC__ */
#define SLANG_GCC 1
#else
#error "unknown compiler"
#endif
/*
Any compilers not detected by the above logic are now now explicitly zeroed out.
*/
#ifndef SLANG_VC
#define SLANG_VC 0
#endif
#ifndef SLANG_CLANG
#define SLANG_CLANG 0
#endif
#ifndef SLANG_SNC
#define SLANG_SNC 0
#endif
#ifndef SLANG_GHS
#define SLANG_GHS 0
#endif
#ifndef SLANG_GCC
#define SLANG_GCC 0
#endif
#endif /* SLANG_COMPILER */
/*
The following section attempts to detect the target platform being compiled for.
If an application defines `SLANG_PLATFORM` before including this header,
they take responsibility for setting any compiler-dependent macros
used later in the file.
Most applications should not need to touch this section.
*/
#ifndef SLANG_PLATFORM
#define SLANG_PLATFORM
/**
Operating system defines, see http://sourceforge.net/p/predef/wiki/OperatingSystems/
*/
#if defined(WINAPI_FAMILY) && WINAPI_FAMILY == WINAPI_PARTITION_APP
#define SLANG_WINRT 1 /* Windows Runtime, either on Windows RT or Windows 8 */
#elif defined(XBOXONE)
#define SLANG_XBOXONE 1
#elif defined(_WIN64) /* note: XBOXONE implies _WIN64 */
#define SLANG_WIN64 1
#elif defined(_M_PPC)
#define SLANG_X360 1
#elif defined(_WIN32) /* note: _M_PPC implies _WIN32 */
#define SLANG_WIN32 1
#elif defined(__ANDROID__)
#define SLANG_ANDROID 1
#elif defined(__linux__) || defined(__CYGWIN__) /* note: __ANDROID__ implies __linux__ */
#define SLANG_LINUX 1
#elif defined(__APPLE__)
#include "TargetConditionals.h"
#if TARGET_OS_MAC
#define SLANG_OSX 1
#else
#define SLANG_IOS 1
#endif
#elif defined(__CELLOS_LV2__)
#define SLANG_PS3 1
#elif defined(__ORBIS__)
#define SLANG_PS4 1
#elif defined(__SNC__) && defined(__arm__)
#define SLANG_PSP2 1
#elif defined(__ghs__)
#define SLANG_WIIU 1
#elif defined(__EMSCRIPTEN__)
#define SLANG_WASM 1
#else
#error "unknown target platform"
#endif
/*
Any platforms not detected by the above logic are now now explicitly zeroed out.
*/
#ifndef SLANG_WINRT
#define SLANG_WINRT 0
#endif
#ifndef SLANG_XBOXONE
#define SLANG_XBOXONE 0
#endif
#ifndef SLANG_WIN64
#define SLANG_WIN64 0
#endif
#ifndef SLANG_X360
#define SLANG_X360 0
#endif
#ifndef SLANG_WIN32
#define SLANG_WIN32 0
#endif
#ifndef SLANG_ANDROID
#define SLANG_ANDROID 0
#endif
#ifndef SLANG_LINUX
#define SLANG_LINUX 0
#endif
#ifndef SLANG_IOS
#define SLANG_IOS 0
#endif
#ifndef SLANG_OSX
#define SLANG_OSX 0
#endif
#ifndef SLANG_PS3
#define SLANG_PS3 0
#endif
#ifndef SLANG_PS4
#define SLANG_PS4 0
#endif
#ifndef SLANG_PSP2
#define SLANG_PSP2 0
#endif
#ifndef SLANG_WIIU
#define SLANG_WIIU 0
#endif
#endif /* SLANG_PLATFORM */
/* Shorthands for "families" of compilers/platforms */
#define SLANG_GCC_FAMILY (SLANG_CLANG || SLANG_SNC || SLANG_GHS || SLANG_GCC)
#define SLANG_WINDOWS_FAMILY (SLANG_WINRT || SLANG_WIN32 || SLANG_WIN64)
#define SLANG_MICROSOFT_FAMILY (SLANG_XBOXONE || SLANG_X360 || SLANG_WINDOWS_FAMILY)
#define SLANG_LINUX_FAMILY (SLANG_LINUX || SLANG_ANDROID)
#define SLANG_APPLE_FAMILY (SLANG_IOS || SLANG_OSX) /* equivalent to #if __APPLE__ */
#define SLANG_UNIX_FAMILY \
(SLANG_LINUX_FAMILY || SLANG_APPLE_FAMILY) /* shortcut for unix/posix platforms */
/* Macros concerning DirectX */
#if !defined(SLANG_CONFIG_DX_ON_VK) || !SLANG_CONFIG_DX_ON_VK
#define SLANG_ENABLE_DXVK 0
#define SLANG_ENABLE_VKD3D 0
#else
#define SLANG_ENABLE_DXVK 1
#define SLANG_ENABLE_VKD3D 1
#endif
#if SLANG_WINDOWS_FAMILY
#define SLANG_ENABLE_DIRECTX 1
#define SLANG_ENABLE_DXGI_DEBUG 1
#define SLANG_ENABLE_DXBC_SUPPORT 1
#define SLANG_ENABLE_PIX 1
#elif SLANG_LINUX_FAMILY
#define SLANG_ENABLE_DIRECTX (SLANG_ENABLE_DXVK || SLANG_ENABLE_VKD3D)
#define SLANG_ENABLE_DXGI_DEBUG 0
#define SLANG_ENABLE_DXBC_SUPPORT 0
#define SLANG_ENABLE_PIX 0
#else
#define SLANG_ENABLE_DIRECTX 0
#define SLANG_ENABLE_DXGI_DEBUG 0
#define SLANG_ENABLE_DXBC_SUPPORT 0
#define SLANG_ENABLE_PIX 0
#endif
/* Macro for declaring if a method is no throw. Should be set before the return parameter. */
#ifndef SLANG_NO_THROW
#if SLANG_WINDOWS_FAMILY && !defined(SLANG_DISABLE_EXCEPTIONS)
#define SLANG_NO_THROW __declspec(nothrow)
#endif
#endif
#ifndef SLANG_NO_THROW
#define SLANG_NO_THROW
#endif
/* The `SLANG_STDCALL` and `SLANG_MCALL` defines are used to set the calling
convention for interface methods.
*/
#ifndef SLANG_STDCALL
#if SLANG_MICROSOFT_FAMILY
#define SLANG_STDCALL __stdcall
#else
#define SLANG_STDCALL
#endif
#endif
#ifndef SLANG_MCALL
#define SLANG_MCALL SLANG_STDCALL
#endif
#if !defined(SLANG_STATIC) && !defined(SLANG_DYNAMIC)
#define SLANG_DYNAMIC
#endif
#if defined(_MSC_VER)
#define SLANG_DLL_EXPORT __declspec(dllexport)
#else
#if SLANG_WINDOWS_FAMILY
#define SLANG_DLL_EXPORT \
__attribute__((dllexport)) __attribute__((__visibility__("default")))
#else
#define SLANG_DLL_EXPORT __attribute__((__visibility__("default")))
#endif
#endif
#if defined(SLANG_DYNAMIC)
#if defined(_MSC_VER)
#ifdef SLANG_DYNAMIC_EXPORT
#define SLANG_API SLANG_DLL_EXPORT
#else
#define SLANG_API __declspec(dllimport)
#endif
#else
// TODO: need to consider compiler capabilities
// # ifdef SLANG_DYNAMIC_EXPORT
#define SLANG_API SLANG_DLL_EXPORT
// # endif
#endif
#endif
#ifndef SLANG_API
#define SLANG_API
#endif
// GCC Specific
#if SLANG_GCC_FAMILY
#define SLANG_NO_INLINE __attribute__((noinline))
#define SLANG_FORCE_INLINE inline __attribute__((always_inline))
#define SLANG_BREAKPOINT(id) __builtin_trap();
#define SLANG_ALIGN_OF(T) __alignof__(T)
#endif // SLANG_GCC_FAMILY
#if SLANG_GCC_FAMILY || defined(__clang__)
// Use the builtin directly so we don't need to have an include of stddef.h
#define SLANG_OFFSET_OF(T, ELEMENT) __builtin_offsetof(T, ELEMENT)
#endif
#ifndef SLANG_OFFSET_OF
#define SLANG_OFFSET_OF(T, ELEMENT) (size_t(&((T*)1)->ELEMENT) - 1)
#endif
// Microsoft VC specific
#if SLANG_VC
#define SLANG_NO_INLINE __declspec(noinline)
#define SLANG_FORCE_INLINE __forceinline
#define SLANG_BREAKPOINT(id) __debugbreak();
#define SLANG_ALIGN_OF(T) __alignof(T)
#define SLANG_INT64(x) (x##i64)
#define SLANG_UINT64(x) (x##ui64)
#endif // SLANG_MICROSOFT_FAMILY
#ifndef SLANG_FORCE_INLINE
#define SLANG_FORCE_INLINE inline
#endif
#ifndef SLANG_NO_INLINE
#define SLANG_NO_INLINE
#endif
#ifndef SLANG_COMPILE_TIME_ASSERT
#define SLANG_COMPILE_TIME_ASSERT(x) static_assert(x)
#endif
#ifndef SLANG_BREAKPOINT
// Make it crash with a write to 0!
#define SLANG_BREAKPOINT(id) (*((int*)0) = int(id));
#endif
// Use for getting the amount of members of a standard C array.
// Use 0[x] here to catch the case where x has an overloaded subscript operator
#define SLANG_COUNT_OF(x) (SlangSSizeT(sizeof(x) / sizeof(0 [x])))
/// SLANG_INLINE exists to have a way to inline consistent with SLANG_ALWAYS_INLINE
#define SLANG_INLINE inline
// If explicitly disabled and not set, set to not available
#if !defined(SLANG_HAS_EXCEPTIONS) && defined(SLANG_DISABLE_EXCEPTIONS)
#define SLANG_HAS_EXCEPTIONS 0
#endif
// If not set, the default is exceptions are available
#ifndef SLANG_HAS_EXCEPTIONS
#define SLANG_HAS_EXCEPTIONS 1
#endif
// Other defines
#define SLANG_STRINGIZE_HELPER(X) #X
#define SLANG_STRINGIZE(X) SLANG_STRINGIZE_HELPER(X)
#define SLANG_CONCAT_HELPER(X, Y) X##Y
#define SLANG_CONCAT(X, Y) SLANG_CONCAT_HELPER(X, Y)
#ifndef SLANG_UNUSED
#define SLANG_UNUSED(v) (void)v;
#endif
#if defined(__llvm__)
#define SLANG_MAYBE_UNUSED [[maybe_unused]]
#else
#define SLANG_MAYBE_UNUSED
#endif
// Used for doing constant literals
#ifndef SLANG_INT64
#define SLANG_INT64(x) (x##ll)
#endif
#ifndef SLANG_UINT64
#define SLANG_UINT64(x) (x##ull)
#endif
#ifdef __cplusplus
#define SLANG_EXTERN_C extern "C"
#else
#define SLANG_EXTERN_C
#endif
#ifdef __cplusplus
// C++ specific macros
// Clang
#if SLANG_CLANG
#if (__clang_major__ * 10 + __clang_minor__) >= 33
#define SLANG_HAS_MOVE_SEMANTICS 1
#define SLANG_HAS_ENUM_CLASS 1
#define SLANG_OVERRIDE override
#endif
// Gcc
#elif SLANG_GCC_FAMILY
// Check for C++11
#if (__cplusplus >= 201103L)
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
#define SLANG_HAS_MOVE_SEMANTICS 1
#endif
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406
#define SLANG_HAS_ENUM_CLASS 1
#endif
#if (__GNUC__ * 100 + __GNUC_MINOR__) >= 407
#define SLANG_OVERRIDE override
#endif
#endif
#endif // SLANG_GCC_FAMILY
// Visual Studio
#if SLANG_VC
// C4481: nonstandard extension used: override specifier 'override'
#if _MSC_VER < 1700
#pragma warning(disable : 4481)
#endif
#define SLANG_OVERRIDE override
#if _MSC_VER >= 1600
#define SLANG_HAS_MOVE_SEMANTICS 1
#endif
#if _MSC_VER >= 1700
#define SLANG_HAS_ENUM_CLASS 1
#endif
#endif // SLANG_VC
// Set non set
#ifndef SLANG_OVERRIDE
#define SLANG_OVERRIDE
#endif
#ifndef SLANG_HAS_ENUM_CLASS
#define SLANG_HAS_ENUM_CLASS 0
#endif
#ifndef SLANG_HAS_MOVE_SEMANTICS
#define SLANG_HAS_MOVE_SEMANTICS 0
#endif
#endif // __cplusplus
/* Macros for detecting processor */
#if defined(_M_ARM) || defined(__ARM_EABI__)
// This is special case for nVidia tegra
#define SLANG_PROCESSOR_ARM 1
#elif defined(__i386__) || defined(_M_IX86)
#define SLANG_PROCESSOR_X86 1
#elif defined(_M_AMD64) || defined(_M_X64) || defined(__amd64) || defined(__x86_64)
#define SLANG_PROCESSOR_X86_64 1
#elif defined(_PPC_) || defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC)
#if defined(__powerpc64__) || defined(__ppc64__) || defined(__PPC64__) || \
defined(__64BIT__) || defined(_LP64) || defined(__LP64__)
#define SLANG_PROCESSOR_POWER_PC_64 1
#else
#define SLANG_PROCESSOR_POWER_PC 1
#endif
#elif defined(__arm__)
#define SLANG_PROCESSOR_ARM 1
#elif defined(_M_ARM64) || defined(__aarch64__)
#define SLANG_PROCESSOR_ARM_64 1
#elif defined(__EMSCRIPTEN__)
#define SLANG_PROCESSOR_WASM 1
#endif
#ifndef SLANG_PROCESSOR_ARM
#define SLANG_PROCESSOR_ARM 0
#endif
#ifndef SLANG_PROCESSOR_ARM_64
#define SLANG_PROCESSOR_ARM_64 0
#endif
#ifndef SLANG_PROCESSOR_X86
#define SLANG_PROCESSOR_X86 0
#endif
#ifndef SLANG_PROCESSOR_X86_64
#define SLANG_PROCESSOR_X86_64 0
#endif
#ifndef SLANG_PROCESSOR_POWER_PC
#define SLANG_PROCESSOR_POWER_PC 0
#endif
#ifndef SLANG_PROCESSOR_POWER_PC_64
#define SLANG_PROCESSOR_POWER_PC_64 0
#endif
// Processor families
#define SLANG_PROCESSOR_FAMILY_X86 (SLANG_PROCESSOR_X86_64 | SLANG_PROCESSOR_X86)
#define SLANG_PROCESSOR_FAMILY_ARM (SLANG_PROCESSOR_ARM | SLANG_PROCESSOR_ARM_64)
#define SLANG_PROCESSOR_FAMILY_POWER_PC (SLANG_PROCESSOR_POWER_PC_64 | SLANG_PROCESSOR_POWER_PC)
// Pointer size
#define SLANG_PTR_IS_64 \
(SLANG_PROCESSOR_ARM_64 | SLANG_PROCESSOR_X86_64 | SLANG_PROCESSOR_POWER_PC_64)
#define SLANG_PTR_IS_32 (SLANG_PTR_IS_64 ^ 1)
// Processor features
#if SLANG_PROCESSOR_FAMILY_X86
#define SLANG_LITTLE_ENDIAN 1
#define SLANG_UNALIGNED_ACCESS 1
#elif SLANG_PROCESSOR_FAMILY_ARM
#if defined(__ARMEB__)
#define SLANG_BIG_ENDIAN 1
#else
#define SLANG_LITTLE_ENDIAN 1
#endif
#elif SLANG_PROCESSOR_FAMILY_POWER_PC
#define SLANG_BIG_ENDIAN 1
#elif SLANG_WASM
#define SLANG_LITTLE_ENDIAN 1
#endif
#ifndef SLANG_LITTLE_ENDIAN
#define SLANG_LITTLE_ENDIAN 0
#endif
#ifndef SLANG_BIG_ENDIAN
#define SLANG_BIG_ENDIAN 0
#endif
#ifndef SLANG_UNALIGNED_ACCESS
#define SLANG_UNALIGNED_ACCESS 0
#endif
// One endianness must be set
#if ((SLANG_BIG_ENDIAN | SLANG_LITTLE_ENDIAN) == 0)
#error "Couldn't determine endianness"
#endif
#ifndef SLANG_NO_INTTYPES
#include <inttypes.h>
#endif // ! SLANG_NO_INTTYPES
#ifndef SLANG_NO_STDDEF
#include <stddef.h>
#endif // ! SLANG_NO_STDDEF
#ifdef __cplusplus
extern "C"
{
#endif
/*!
@mainpage Introduction
API Reference: slang.h
@file slang.h
*/
typedef uint32_t SlangUInt32;
typedef int32_t SlangInt32;
// Use SLANG_PTR_ macros to determine SlangInt/SlangUInt types.
// This is used over say using size_t/ptrdiff_t/intptr_t/uintptr_t, because on some targets,
// these types are distinct from their uint_t/int_t equivalents and so produce ambiguity with
// function overloading.
//
// SlangSizeT is helpful as on some compilers size_t is distinct from a regular integer type and
// so overloading doesn't work. Casting to SlangSizeT works around this.
#if SLANG_PTR_IS_64
typedef int64_t SlangInt;
typedef uint64_t SlangUInt;
typedef int64_t SlangSSizeT;
typedef uint64_t SlangSizeT;
#else
typedef int32_t SlangInt;
typedef uint32_t SlangUInt;
typedef int32_t SlangSSizeT;
typedef uint32_t SlangSizeT;
#endif
typedef bool SlangBool;
/*!
@brief Severity of a diagnostic generated by the compiler.
Values come from the enum below, with higher values representing more severe
conditions, and all values >= SLANG_SEVERITY_ERROR indicating compilation
failure.
*/
typedef int SlangSeverityIntegral;
enum SlangSeverity : SlangSeverityIntegral
{
SLANG_SEVERITY_DISABLED = 0, /**< A message that is disabled, filtered out. */
SLANG_SEVERITY_NOTE, /**< An informative message. */
SLANG_SEVERITY_WARNING, /**< A warning, which indicates a possible problem. */
SLANG_SEVERITY_ERROR, /**< An error, indicating that compilation failed. */
SLANG_SEVERITY_FATAL, /**< An unrecoverable error, which forced compilation to abort. */
SLANG_SEVERITY_INTERNAL, /**< An internal error, indicating a logic error in the compiler.
*/
};
typedef int SlangDiagnosticFlags;
enum
{
SLANG_DIAGNOSTIC_FLAG_VERBOSE_PATHS = 0x01,
SLANG_DIAGNOSTIC_FLAG_TREAT_WARNINGS_AS_ERRORS = 0x02
};
typedef int SlangBindableResourceIntegral;
enum SlangBindableResourceType : SlangBindableResourceIntegral
{
SLANG_NON_BINDABLE = 0,
SLANG_TEXTURE,
SLANG_SAMPLER,
SLANG_UNIFORM_BUFFER,
SLANG_STORAGE_BUFFER,
};
/* NOTE! To keep binary compatibility care is needed with this enum!
* To add value, only add at the bottom (before COUNT_OF)
* To remove a value, add _DEPRECATED as a suffix, but leave in the list
This will make the enum values stable, and compatible with libraries that might not use the
latest enum values.
*/
typedef int SlangCompileTargetIntegral;
enum SlangCompileTarget : SlangCompileTargetIntegral
{
SLANG_TARGET_UNKNOWN,
SLANG_TARGET_NONE,
SLANG_GLSL,
SLANG_GLSL_VULKAN_DEPRECATED, //< deprecated and removed: just use `SLANG_GLSL`.
SLANG_GLSL_VULKAN_ONE_DESC_DEPRECATED, //< deprecated and removed.
SLANG_HLSL,
SLANG_SPIRV,
SLANG_SPIRV_ASM,
SLANG_DXBC,
SLANG_DXBC_ASM,
SLANG_DXIL,
SLANG_DXIL_ASM,
SLANG_C_SOURCE, ///< The C language
SLANG_CPP_SOURCE, ///< C++ code for shader kernels.
SLANG_HOST_EXECUTABLE, ///< Standalone binary executable (for hosting CPU/OS)
SLANG_SHADER_SHARED_LIBRARY, ///< A shared library/Dll for shader kernels (for hosting
///< CPU/OS)
SLANG_SHADER_HOST_CALLABLE, ///< A CPU target that makes the compiled shader code available
///< to be run immediately
SLANG_CUDA_SOURCE, ///< Cuda source
SLANG_PTX, ///< PTX
SLANG_CUDA_OBJECT_CODE, ///< Object code that contains CUDA functions.
SLANG_OBJECT_CODE, ///< Object code that can be used for later linking
SLANG_HOST_CPP_SOURCE, ///< C++ code for host library or executable.
SLANG_HOST_HOST_CALLABLE, ///< Host callable host code (ie non kernel/shader)
SLANG_CPP_PYTORCH_BINDING, ///< C++ PyTorch binding code.
SLANG_METAL, ///< Metal shading language
SLANG_METAL_LIB, ///< Metal library
SLANG_METAL_LIB_ASM, ///< Metal library assembly
SLANG_HOST_SHARED_LIBRARY, ///< A shared library/Dll for host code (for hosting CPU/OS)
SLANG_WGSL, ///< WebGPU shading language
SLANG_WGSL_SPIRV_ASM, ///< SPIR-V assembly via WebGPU shading language
SLANG_WGSL_SPIRV, ///< SPIR-V via WebGPU shading language
SLANG_TARGET_COUNT_OF,
};
/* A "container format" describes the way that the outputs
for multiple files, entry points, targets, etc. should be
combined into a single artifact for output. */
typedef int SlangContainerFormatIntegral;
enum SlangContainerFormat : SlangContainerFormatIntegral
{
/* Don't generate a container. */
SLANG_CONTAINER_FORMAT_NONE,
/* Generate a container in the `.slang-module` format,
which includes reflection information, compiled kernels, etc. */
SLANG_CONTAINER_FORMAT_SLANG_MODULE,
};
typedef int SlangPassThroughIntegral;
enum SlangPassThrough : SlangPassThroughIntegral
{
SLANG_PASS_THROUGH_NONE,
SLANG_PASS_THROUGH_FXC,
SLANG_PASS_THROUGH_DXC,
SLANG_PASS_THROUGH_GLSLANG,
SLANG_PASS_THROUGH_SPIRV_DIS,
SLANG_PASS_THROUGH_CLANG, ///< Clang C/C++ compiler
SLANG_PASS_THROUGH_VISUAL_STUDIO, ///< Visual studio C/C++ compiler
SLANG_PASS_THROUGH_GCC, ///< GCC C/C++ compiler
SLANG_PASS_THROUGH_GENERIC_C_CPP, ///< Generic C or C++ compiler, which is decided by the
///< source type
SLANG_PASS_THROUGH_NVRTC, ///< NVRTC Cuda compiler
SLANG_PASS_THROUGH_LLVM, ///< LLVM 'compiler' - includes LLVM and Clang
SLANG_PASS_THROUGH_SPIRV_OPT, ///< SPIRV-opt
SLANG_PASS_THROUGH_METAL, ///< Metal compiler
SLANG_PASS_THROUGH_TINT, ///< Tint WGSL compiler
SLANG_PASS_THROUGH_SPIRV_LINK, ///< SPIRV-link
SLANG_PASS_THROUGH_COUNT_OF,
};
/* Defines an archive type used to holds a 'file system' type structure. */
typedef int SlangArchiveTypeIntegral;
enum SlangArchiveType : SlangArchiveTypeIntegral
{
SLANG_ARCHIVE_TYPE_UNDEFINED,
SLANG_ARCHIVE_TYPE_ZIP,
SLANG_ARCHIVE_TYPE_RIFF, ///< Riff container with no compression
SLANG_ARCHIVE_TYPE_RIFF_DEFLATE,
SLANG_ARCHIVE_TYPE_RIFF_LZ4,
SLANG_ARCHIVE_TYPE_COUNT_OF,
};
/*!
Flags to control compilation behavior.
*/
typedef unsigned int SlangCompileFlags;
enum
{
/* Do as little mangling of names as possible, to try to preserve original names */
SLANG_COMPILE_FLAG_NO_MANGLING = 1 << 3,
/* Skip code generation step, just check the code and generate layout */
SLANG_COMPILE_FLAG_NO_CODEGEN = 1 << 4,
/* Obfuscate shader names on release products */
SLANG_COMPILE_FLAG_OBFUSCATE = 1 << 5,
/* Deprecated flags: kept around to allow existing applications to
compile. Note that the relevant features will still be left in
their default state. */
SLANG_COMPILE_FLAG_NO_CHECKING = 0,
SLANG_COMPILE_FLAG_SPLIT_MIXED_TYPES = 0,
};
/*!
@brief Flags to control code generation behavior of a compilation target */
typedef unsigned int SlangTargetFlags;
enum
{
/* When compiling for a D3D Shader Model 5.1 or higher target, allocate
distinct register spaces for parameter blocks.
@deprecated This behavior is now enabled unconditionally.
*/
SLANG_TARGET_FLAG_PARAMETER_BLOCKS_USE_REGISTER_SPACES = 1 << 4,
/* When set, will generate target code that contains all entrypoints defined
in the input source or specified via the `spAddEntryPoint` function in a
single output module (library/source file).
*/
SLANG_TARGET_FLAG_GENERATE_WHOLE_PROGRAM = 1 << 8,
/* When set, will dump out the IR between intermediate compilation steps.*/
SLANG_TARGET_FLAG_DUMP_IR = 1 << 9,
/* When set, will generate SPIRV directly rather than via glslang. */
// This flag will be deprecated, use CompilerOption instead.
SLANG_TARGET_FLAG_GENERATE_SPIRV_DIRECTLY = 1 << 10,
};
constexpr static SlangTargetFlags kDefaultTargetFlags =
SLANG_TARGET_FLAG_GENERATE_SPIRV_DIRECTLY;
/*!
@brief Options to control floating-point precision guarantees for a target.
*/
typedef unsigned int SlangFloatingPointModeIntegral;
enum SlangFloatingPointMode : SlangFloatingPointModeIntegral
{
SLANG_FLOATING_POINT_MODE_DEFAULT = 0,
SLANG_FLOATING_POINT_MODE_FAST,
SLANG_FLOATING_POINT_MODE_PRECISE,
};
/*!
@brief Options to control emission of `#line` directives
*/
typedef unsigned int SlangLineDirectiveModeIntegral;
enum SlangLineDirectiveMode : SlangLineDirectiveModeIntegral
{
SLANG_LINE_DIRECTIVE_MODE_DEFAULT =
0, /**< Default behavior: pick behavior base on target. */
SLANG_LINE_DIRECTIVE_MODE_NONE, /**< Don't emit line directives at all. */
SLANG_LINE_DIRECTIVE_MODE_STANDARD, /**< Emit standard C-style `#line` directives. */
SLANG_LINE_DIRECTIVE_MODE_GLSL, /**< Emit GLSL-style directives with file *number* instead
of name */
SLANG_LINE_DIRECTIVE_MODE_SOURCE_MAP, /**< Use a source map to track line mappings (ie no
#line will appear in emitting source) */
};
typedef int SlangSourceLanguageIntegral;
enum SlangSourceLanguage : SlangSourceLanguageIntegral
{
SLANG_SOURCE_LANGUAGE_UNKNOWN,
SLANG_SOURCE_LANGUAGE_SLANG,
SLANG_SOURCE_LANGUAGE_HLSL,
SLANG_SOURCE_LANGUAGE_GLSL,
SLANG_SOURCE_LANGUAGE_C,
SLANG_SOURCE_LANGUAGE_CPP,
SLANG_SOURCE_LANGUAGE_CUDA,
SLANG_SOURCE_LANGUAGE_SPIRV,
SLANG_SOURCE_LANGUAGE_METAL,
SLANG_SOURCE_LANGUAGE_WGSL,
SLANG_SOURCE_LANGUAGE_COUNT_OF,
};
typedef unsigned int SlangProfileIDIntegral;
enum SlangProfileID : SlangProfileIDIntegral
{
SLANG_PROFILE_UNKNOWN,
};
typedef SlangInt32 SlangCapabilityIDIntegral;
enum SlangCapabilityID : SlangCapabilityIDIntegral
{
SLANG_CAPABILITY_UNKNOWN = 0,
};
typedef unsigned int SlangMatrixLayoutModeIntegral;
enum SlangMatrixLayoutMode : SlangMatrixLayoutModeIntegral
{
SLANG_MATRIX_LAYOUT_MODE_UNKNOWN = 0,
SLANG_MATRIX_LAYOUT_ROW_MAJOR,
SLANG_MATRIX_LAYOUT_COLUMN_MAJOR,
};
typedef SlangUInt32 SlangStageIntegral;
enum SlangStage : SlangStageIntegral
{
SLANG_STAGE_NONE,
SLANG_STAGE_VERTEX,
SLANG_STAGE_HULL,
SLANG_STAGE_DOMAIN,
SLANG_STAGE_GEOMETRY,
SLANG_STAGE_FRAGMENT,
SLANG_STAGE_COMPUTE,
SLANG_STAGE_RAY_GENERATION,
SLANG_STAGE_INTERSECTION,
SLANG_STAGE_ANY_HIT,
SLANG_STAGE_CLOSEST_HIT,
SLANG_STAGE_MISS,
SLANG_STAGE_CALLABLE,
SLANG_STAGE_MESH,
SLANG_STAGE_AMPLIFICATION,
//
SLANG_STAGE_COUNT,
// alias:
SLANG_STAGE_PIXEL = SLANG_STAGE_FRAGMENT,
};
typedef SlangUInt32 SlangDebugInfoLevelIntegral;
enum SlangDebugInfoLevel : SlangDebugInfoLevelIntegral
{
SLANG_DEBUG_INFO_LEVEL_NONE = 0, /**< Don't emit debug information at all. */
SLANG_DEBUG_INFO_LEVEL_MINIMAL, /**< Emit as little debug information as possible, while
still supporting stack trackers. */
SLANG_DEBUG_INFO_LEVEL_STANDARD, /**< Emit whatever is the standard level of debug
information for each target. */
SLANG_DEBUG_INFO_LEVEL_MAXIMAL, /**< Emit as much debug information as possible for each
target. */
};
/* Describes the debugging information format produced during a compilation. */
typedef SlangUInt32 SlangDebugInfoFormatIntegral;
enum SlangDebugInfoFormat : SlangDebugInfoFormatIntegral
{
SLANG_DEBUG_INFO_FORMAT_DEFAULT, ///< Use the default debugging format for the target
SLANG_DEBUG_INFO_FORMAT_C7, ///< CodeView C7 format (typically means debugging information
///< is embedded in the binary)
SLANG_DEBUG_INFO_FORMAT_PDB, ///< Program database
SLANG_DEBUG_INFO_FORMAT_STABS, ///< Stabs
SLANG_DEBUG_INFO_FORMAT_COFF, ///< COFF debug info
SLANG_DEBUG_INFO_FORMAT_DWARF, ///< DWARF debug info (we may want to support specifying the
///< version)
SLANG_DEBUG_INFO_FORMAT_COUNT_OF,
};
typedef SlangUInt32 SlangOptimizationLevelIntegral;
enum SlangOptimizationLevel : SlangOptimizationLevelIntegral
{
SLANG_OPTIMIZATION_LEVEL_NONE = 0, /**< Don't optimize at all. */
SLANG_OPTIMIZATION_LEVEL_DEFAULT, /**< Default optimization level: balance code quality and
compilation time. */
SLANG_OPTIMIZATION_LEVEL_HIGH, /**< Optimize aggressively. */
SLANG_OPTIMIZATION_LEVEL_MAXIMAL, /**< Include optimizations that may take a very long time,
or may involve severe space-vs-speed tradeoffs */
};
enum SlangEmitSpirvMethod
{
SLANG_EMIT_SPIRV_DEFAULT = 0,
SLANG_EMIT_SPIRV_VIA_GLSL,
SLANG_EMIT_SPIRV_DIRECTLY,
};
// All compiler option names supported by Slang.
namespace slang
{
enum class CompilerOptionName
{
MacroDefine, // stringValue0: macro name; stringValue1: macro value
DepFile,
EntryPointName,
Specialize,
Help,
HelpStyle,
Include, // stringValue: additional include path.
Language,
MatrixLayoutColumn, // bool
MatrixLayoutRow, // bool
ZeroInitialize, // bool
IgnoreCapabilities, // bool
RestrictiveCapabilityCheck, // bool
ModuleName, // stringValue0: module name.
Output,
Profile, // intValue0: profile
Stage, // intValue0: stage
Target, // intValue0: CodeGenTarget
Version,
WarningsAsErrors, // stringValue0: "all" or comma separated list of warning codes or names.
DisableWarnings, // stringValue0: comma separated list of warning codes or names.
EnableWarning, // stringValue0: warning code or name.
DisableWarning, // stringValue0: warning code or name.
DumpWarningDiagnostics,
InputFilesRemain,
EmitIr, // bool
ReportDownstreamTime, // bool
ReportPerfBenchmark, // bool
ReportCheckpointIntermediates, // bool
SkipSPIRVValidation, // bool
SourceEmbedStyle,
SourceEmbedName,
SourceEmbedLanguage,
DisableShortCircuit, // bool
MinimumSlangOptimization, // bool
DisableNonEssentialValidations, // bool
DisableSourceMap, // bool
UnscopedEnum, // bool
PreserveParameters, // bool: preserve all resource parameters in the output code.
// Target
Capability, // intValue0: CapabilityName
DefaultImageFormatUnknown, // bool
DisableDynamicDispatch, // bool
DisableSpecialization, // bool
FloatingPointMode, // intValue0: FloatingPointMode
DebugInformation, // intValue0: DebugInfoLevel
LineDirectiveMode,
Optimization, // intValue0: OptimizationLevel
Obfuscate, // bool
VulkanBindShift, // intValue0 (higher 8 bits): kind; intValue0(lower bits): set; intValue1:
// shift
VulkanBindGlobals, // intValue0: index; intValue1: set
VulkanInvertY, // bool
VulkanUseDxPositionW, // bool
VulkanUseEntryPointName, // bool
VulkanUseGLLayout, // bool
VulkanEmitReflection, // bool
GLSLForceScalarLayout, // bool
EnableEffectAnnotations, // bool
EmitSpirvViaGLSL, // bool (will be deprecated)
EmitSpirvDirectly, // bool (will be deprecated)
SPIRVCoreGrammarJSON, // stringValue0: json path
IncompleteLibrary, // bool, when set, will not issue an error when the linked program has
// unresolved extern function symbols.
// Downstream
CompilerPath,
DefaultDownstreamCompiler,
DownstreamArgs, // stringValue0: downstream compiler name. stringValue1: argument list, one
// per line.
PassThrough,
// Repro
DumpRepro,
DumpReproOnError,
ExtractRepro,
LoadRepro,
LoadReproDirectory,
ReproFallbackDirectory,
// Debugging
DumpAst,
DumpIntermediatePrefix,
DumpIntermediates, // bool
DumpIr, // bool
DumpIrIds,
PreprocessorOutput,
OutputIncludes,
ReproFileSystem,
SerialIr, // bool
SkipCodeGen, // bool
ValidateIr, // bool
VerbosePaths,
VerifyDebugSerialIr,
NoCodeGen, // Not used.
// Experimental
FileSystem,
Heterogeneous,
NoMangle,
NoHLSLBinding,
NoHLSLPackConstantBufferElements,
ValidateUniformity,
AllowGLSL,
EnableExperimentalPasses,
BindlessSpaceIndex, // int
// Internal
ArchiveType,
CompileCoreModule,
Doc,
IrCompression,
LoadCoreModule,
ReferenceModule,
SaveCoreModule,
SaveCoreModuleBinSource,
TrackLiveness,
LoopInversion, // bool, enable loop inversion optimization
// Deprecated
ParameterBlocksUseRegisterSpaces,
CountOfParsableOptions,