================ @@ -0,0 +1,140 @@ +//===- HLSLRootSignature.h - HLSL Root Signature helper objects -----------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +/// +/// \file This file contains helper objects for working with HLSL Root +/// Signatures. +/// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_FRONTEND_HLSL_HLSLROOTSIGNATURE_H +#define LLVM_FRONTEND_HLSL_HLSLROOTSIGNATURE_H + +#include <stdint.h> + +#include "llvm/ADT/SmallVector.h" +#include "llvm/Support/Endian.h" + +namespace llvm { +namespace hlsl { +namespace root_signature { + +// This is a copy from DebugInfo/CodeView/CodeView.h +#define RS_DEFINE_ENUM_CLASS_FLAGS_OPERATORS(Class) \ + inline Class operator|(Class a, Class b) { \ + return static_cast<Class>(llvm::to_underlying(a) | \ + llvm::to_underlying(b)); \ + } \ + inline Class operator&(Class a, Class b) { \ + return static_cast<Class>(llvm::to_underlying(a) & \ + llvm::to_underlying(b)); \ + } \ + inline Class operator~(Class a) { \ + return static_cast<Class>(~llvm::to_underlying(a)); \ + } \ + inline Class &operator|=(Class &a, Class b) { \ + a = a | b; \ + return a; \ + } \ + inline Class &operator&=(Class &a, Class b) { \ + a = a & b; \ + return a; \ + } + +// Definition of the various enumerations and flags +enum class DescriptorRangeFlags : unsigned { + None = 0, + DescriptorsVolatile = 0x1, + DataVolatile = 0x2, + DataStaticWhileSetAtExecute = 0x4, + DataStatic = 0x8, + DescriptorsStaticKeepingBufferBoundsChecks = 0x10000, + ValidFlags = 0x1000f, + ValidSamplerFlags = DescriptorsVolatile, +}; +RS_DEFINE_ENUM_CLASS_FLAGS_OPERATORS(DescriptorRangeFlags) + +enum class ShaderVisibility { + All = 0, + Vertex = 1, + Hull = 2, + Domain = 3, + Geometry = 4, + Pixel = 5, + Amplification = 6, + Mesh = 7, +}; + +// Definitions of the in-memory data layout structures + +// Models the different registers: bReg | tReg | uReg | sReg +enum class RegisterType { BReg, TReg, UReg, SReg }; +struct Register { + RegisterType ViewType; + uint32_t Number; +}; + +static const uint32_t DescriptorTableOffsetAppend = 0xffffffff; +// Models DTClause : CBV | SRV | UAV | Sampler by collecting like parameters +enum class ClauseType { CBV, SRV, UAV, Sampler }; +struct DescriptorTableClause { + ClauseType Type; + Register Register; ---------------- damyanp wrote:
It looks like there's nothing enforcing Register's initialization? Since this struct has a constructor, I'd expect to get a fully initialized object back when I construct it. https://github.com/llvm/llvm-project/pull/122982 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
