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DirectXShaderCompiler
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DirectXShaderCompiler/lib/HLSL/DxilContainerReflection.cpp

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///////////////////////////////////////////////////////////////////////////////
// //
// DxilContainerReflection.cpp //
// Copyright (C) Microsoft Corporation. All rights reserved. //
// This file is distributed under the University of Illinois Open Source //
// License. See LICENSE.TXT for details. //
// //
// Provides support for reading DXIL container structures. //
// //
///////////////////////////////////////////////////////////////////////////////
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/InstIterator.h"
#include "dxc/HLSL/DxilContainer.h"
#include "dxc/HLSL/DxilModule.h"
#include "dxc/HLSL/DxilShaderModel.h"
#include "dxc/HLSL/DxilOperations.h"
#include "dxc/HLSL/DxilInstructions.h"
#include "dxc/Support/Global.h"
#include "dxc/Support/Unicode.h"
#include "dxc/Support/WinIncludes.h"
#include "dxc/Support/microcom.h"
#include "dxc/Support/FileIOHelper.h"
#include "dxc/Support/dxcapi.impl.h"
#include <unordered_set>
#include "dxc/dxcapi.h"
#include "d3d12shader.h" // for compatibility
#include "d3d11shader.h" // for compatibility
const GUID IID_ID3D11ShaderReflection_43 = {
0x0a233719,
0x3960,
0x4578,
{0x9d, 0x7c, 0x20, 0x3b, 0x8b, 0x1d, 0x9c, 0xc1}};
const GUID IID_ID3D11ShaderReflection_47 = {
0x8d536ca1,
0x0cca,
0x4956,
{0xa8, 0x37, 0x78, 0x69, 0x63, 0x75, 0x55, 0x84}};
using namespace llvm;
using namespace hlsl;
class DxilContainerReflection : public IDxcContainerReflection {
private:
DXC_MICROCOM_REF_FIELD(m_dwRef)
CComPtr<IDxcBlob> m_container;
const DxilContainerHeader *m_pHeader;
uint32_t m_headerLen;
bool IsLoaded() const { return m_pHeader != nullptr; }
public:
DXC_MICROCOM_ADDREF_RELEASE_IMPL(m_dwRef)
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void **ppvObject) {
return DoBasicQueryInterface<IDxcContainerReflection>(this, iid, ppvObject);
}
DxilContainerReflection() : m_dwRef(0), m_pHeader(nullptr), m_headerLen(0) { }
__override HRESULT STDMETHODCALLTYPE Load(_In_ IDxcBlob *pContainer);
__override HRESULT STDMETHODCALLTYPE GetPartCount(_Out_ UINT32 *pResult);
__override HRESULT STDMETHODCALLTYPE GetPartKind(UINT32 idx, _Out_ UINT32 *pResult);
__override HRESULT STDMETHODCALLTYPE GetPartContent(UINT32 idx, _COM_Outptr_ IDxcBlob **ppResult);
__override HRESULT STDMETHODCALLTYPE FindFirstPartKind(UINT32 kind, _Out_ UINT32 *pResult);
__override HRESULT STDMETHODCALLTYPE GetPartReflection(UINT32 idx, REFIID iid, _COM_Outptr_ void **ppvObject);
};
class CShaderReflectionConstantBuffer;
class CShaderReflectionType;
class DxilShaderReflection : public ID3D12ShaderReflection {
private:
DXC_MICROCOM_REF_FIELD(m_dwRef)
CComPtr<IDxcBlob> m_pContainer;
LLVMContext Context;
std::unique_ptr<Module> m_pModule; // Must come after LLVMContext, otherwise unique_ptr will over-delete.
DxilModule *m_pDxilModule;
std::vector<CShaderReflectionConstantBuffer> m_CBs;
std::vector<D3D12_SHADER_INPUT_BIND_DESC> m_Resources;
std::vector<D3D12_SIGNATURE_PARAMETER_DESC> m_InputSignature;
std::vector<D3D12_SIGNATURE_PARAMETER_DESC> m_OutputSignature;
std::vector<D3D12_SIGNATURE_PARAMETER_DESC> m_PatchConstantSignature;
std::vector<std::unique_ptr<char[]>> m_UpperCaseNames;
std::vector<std::unique_ptr<CShaderReflectionType>> m_Types;
void CreateReflectionObjects();
void SetCBufferUsage();
void CreateReflectionObjectForResource(DxilResourceBase *R);
void CreateReflectionObjectsForSignature(
const DxilSignature &Sig,
std::vector<D3D12_SIGNATURE_PARAMETER_DESC> &Descs);
LPCSTR CreateUpperCase(LPCSTR pValue);
void MarkUsedSignatureElements();
public:
enum class PublicAPI { D3D12 = 0, D3D11_47 = 1, D3D11_43 = 2 };
PublicAPI m_PublicAPI;
void SetPublicAPI(PublicAPI value) { m_PublicAPI = value; }
static PublicAPI IIDToAPI(REFIID iid) {
DxilShaderReflection::PublicAPI api =
DxilShaderReflection::PublicAPI::D3D12;
if (IsEqualIID(IID_ID3D11ShaderReflection_43, iid))
api = DxilShaderReflection::PublicAPI::D3D11_43;
else if (IsEqualIID(IID_ID3D11ShaderReflection_47, iid))
api = DxilShaderReflection::PublicAPI::D3D11_47;
return api;
}
DXC_MICROCOM_ADDREF_RELEASE_IMPL(m_dwRef)
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void **ppvObject) {
HRESULT hr = DoBasicQueryInterface<ID3D12ShaderReflection>(this, iid, ppvObject);
if (hr == E_NOINTERFACE) {
// ID3D11ShaderReflection is identical to ID3D12ShaderReflection, except
// for some shorter data structures in some out parameters.
PublicAPI api = IIDToAPI(iid);
if (api == m_PublicAPI) {
*ppvObject = (ID3D12ShaderReflection *)this;
this->AddRef();
hr = S_OK;
}
}
return hr;
}
DxilShaderReflection() : m_dwRef(0), m_pDxilModule(nullptr) { }
HRESULT Load(IDxcBlob *pBlob, const DxilPartHeader *pPart);
// ID3D12ShaderReflection
STDMETHODIMP GetDesc(THIS_ _Out_ D3D12_SHADER_DESC *pDesc);
STDMETHODIMP_(ID3D12ShaderReflectionConstantBuffer*) GetConstantBufferByIndex(THIS_ _In_ UINT Index);
STDMETHODIMP_(ID3D12ShaderReflectionConstantBuffer*) GetConstantBufferByName(THIS_ _In_ LPCSTR Name);
STDMETHODIMP GetResourceBindingDesc(THIS_ _In_ UINT ResourceIndex,
_Out_ D3D12_SHADER_INPUT_BIND_DESC *pDesc);
STDMETHODIMP GetInputParameterDesc(THIS_ _In_ UINT ParameterIndex,
_Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc);
STDMETHODIMP GetOutputParameterDesc(THIS_ _In_ UINT ParameterIndex,
_Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc);
STDMETHODIMP GetPatchConstantParameterDesc(THIS_ _In_ UINT ParameterIndex,
_Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc);
STDMETHODIMP_(ID3D12ShaderReflectionVariable*) GetVariableByName(THIS_ _In_ LPCSTR Name);
STDMETHODIMP GetResourceBindingDescByName(THIS_ _In_ LPCSTR Name,
_Out_ D3D12_SHADER_INPUT_BIND_DESC *pDesc);
STDMETHODIMP_(UINT) GetMovInstructionCount(THIS);
STDMETHODIMP_(UINT) GetMovcInstructionCount(THIS);
STDMETHODIMP_(UINT) GetConversionInstructionCount(THIS);
STDMETHODIMP_(UINT) GetBitwiseInstructionCount(THIS);
STDMETHODIMP_(D3D_PRIMITIVE) GetGSInputPrimitive(THIS);
STDMETHODIMP_(BOOL) IsSampleFrequencyShader(THIS);
STDMETHODIMP_(UINT) GetNumInterfaceSlots(THIS);
STDMETHODIMP GetMinFeatureLevel(THIS_ _Out_ enum D3D_FEATURE_LEVEL* pLevel);
STDMETHODIMP_(UINT) GetThreadGroupSize(THIS_
_Out_opt_ UINT* pSizeX,
_Out_opt_ UINT* pSizeY,
_Out_opt_ UINT* pSizeZ);
STDMETHODIMP_(UINT64) GetRequiresFlags(THIS);
};
_Use_decl_annotations_
HRESULT DxilContainerReflection::Load(IDxcBlob *pContainer) {
if (pContainer == nullptr) {
m_container.Release();
m_pHeader = nullptr;
m_headerLen = 0;
return S_OK;
}
uint32_t bufLen = pContainer->GetBufferSize();
const DxilContainerHeader *pHeader =
IsDxilContainerLike(pContainer->GetBufferPointer(), bufLen);
if (pHeader == nullptr) {
return E_INVALIDARG;
}
if (!IsValidDxilContainer(pHeader, bufLen)) {
return E_INVALIDARG;
}
m_container = pContainer;
m_headerLen = bufLen;
m_pHeader = pHeader;
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilContainerReflection::GetPartCount(UINT32 *pResult) {
if (pResult == nullptr) return E_POINTER;
if (!IsLoaded()) return E_NOT_VALID_STATE;
*pResult = m_pHeader->PartCount;
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilContainerReflection::GetPartKind(UINT32 idx, _Out_ UINT32 *pResult) {
if (pResult == nullptr) return E_POINTER;
if (!IsLoaded()) return E_NOT_VALID_STATE;
if (idx >= m_pHeader->PartCount) return E_BOUNDS;
const DxilPartHeader *pPart = GetDxilContainerPart(m_pHeader, idx);
*pResult = pPart->PartFourCC;
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilContainerReflection::GetPartContent(UINT32 idx, _COM_Outptr_ IDxcBlob **ppResult) {
if (ppResult == nullptr) return E_POINTER;
*ppResult = nullptr;
if (!IsLoaded()) return E_NOT_VALID_STATE;
if (idx >= m_pHeader->PartCount) return E_BOUNDS;
const DxilPartHeader *pPart = GetDxilContainerPart(m_pHeader, idx);
const char *pData = GetDxilPartData(pPart);
uint32_t offset = (uint32_t)(pData - (char*)m_container->GetBufferPointer()); // Offset from the beginning.
uint32_t length = pPart->PartSize;
return DxcCreateBlobFromBlob(m_container, offset, length, ppResult);
}
_Use_decl_annotations_
HRESULT DxilContainerReflection::FindFirstPartKind(UINT32 kind, _Out_ UINT32 *pResult) {
if (pResult == nullptr) return E_POINTER;
*pResult = 0;
if (!IsLoaded()) return E_NOT_VALID_STATE;
DxilPartIterator it = std::find_if(begin(m_pHeader), end(m_pHeader), DxilPartIsType(kind));
if (it == end(m_pHeader)) return HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
*pResult = it.index;
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilContainerReflection::GetPartReflection(UINT32 idx, REFIID iid, void **ppvObject) {
if (ppvObject == nullptr) return E_POINTER;
*ppvObject = nullptr;
if (!IsLoaded()) return E_NOT_VALID_STATE;
if (idx >= m_pHeader->PartCount) return E_BOUNDS;
const DxilPartHeader *pPart = GetDxilContainerPart(m_pHeader, idx);
if (pPart->PartFourCC != DFCC_DXIL && pPart->PartFourCC != DFCC_ShaderDebugInfoDXIL) {
return E_NOTIMPL;
}
HRESULT hr = S_OK;
CComPtr<DxilShaderReflection> pReflection = new (std::nothrow)DxilShaderReflection();
IFCOOM(pReflection.p);
DxilShaderReflection::PublicAPI api = DxilShaderReflection::IIDToAPI(iid);
pReflection->SetPublicAPI(api);
IFC(pReflection->Load(m_container, pPart));
IFC(pReflection.p->QueryInterface(iid, ppvObject));
Cleanup:
return hr;
}
void hlsl::CreateDxcContainerReflection(IDxcContainerReflection **ppResult) {
CComPtr<DxilContainerReflection> pReflection = new DxilContainerReflection();
*ppResult = pReflection.Detach();
}
///////////////////////////////////////////////////////////////////////////////
// DxilShaderReflection implementation - helper objects. //
class CShaderReflectionType;
class CShaderReflectionVariable;
class CShaderReflectionConstantBuffer;
class CShaderReflection;
struct D3D11_INTERNALSHADER_RESOURCE_DEF;
class CShaderReflectionType : public ID3D12ShaderReflectionType
{
protected:
D3D12_SHADER_TYPE_DESC m_Desc;
std::string m_Name;
std::vector<StringRef> m_MemberNames;
std::vector<CShaderReflectionType*> m_MemberTypes;
CShaderReflectionType* m_pSubType;
CShaderReflectionType* m_pBaseClass;
std::vector<CShaderReflectionType*> m_Interfaces;
ULONG_PTR m_Identity;
public:
// Internal
HRESULT Initialize(
DxilModule &M,
llvm::Type *type,
DxilFieldAnnotation &typeAnnotation,
unsigned int baseOffset,
std::vector<std::unique_ptr<CShaderReflectionType>>& allTypes);
// ID3D12ShaderReflectionType
STDMETHOD(GetDesc)(D3D12_SHADER_TYPE_DESC *pDesc);
STDMETHOD_(ID3D12ShaderReflectionType*, GetMemberTypeByIndex)(UINT Index);
STDMETHOD_(ID3D12ShaderReflectionType*, GetMemberTypeByName)(LPCSTR Name);
STDMETHOD_(LPCSTR, GetMemberTypeName)(UINT Index);
STDMETHOD(IsEqual)(THIS_ ID3D12ShaderReflectionType* pType);
STDMETHOD_(ID3D12ShaderReflectionType*, GetSubType)(THIS);
STDMETHOD_(ID3D12ShaderReflectionType*, GetBaseClass)(THIS);
STDMETHOD_(UINT, GetNumInterfaces)(THIS);
STDMETHOD_(ID3D12ShaderReflectionType*, GetInterfaceByIndex)(THIS_ UINT uIndex);
STDMETHOD(IsOfType)(THIS_ ID3D12ShaderReflectionType* pType);
STDMETHOD(ImplementsInterface)(THIS_ ID3D12ShaderReflectionType* pBase);
bool CheckEqual(_In_ CShaderReflectionType *pOther) {
return m_Identity == pOther->m_Identity;
}
};
class CShaderReflectionVariable : public ID3D12ShaderReflectionVariable
{
protected:
D3D12_SHADER_VARIABLE_DESC m_Desc;
CShaderReflectionType *m_pType;
CShaderReflectionConstantBuffer *m_pBuffer;
BYTE *m_pDefaultValue;
public:
void Initialize(CShaderReflectionConstantBuffer *pBuffer,
D3D12_SHADER_VARIABLE_DESC *pDesc,
CShaderReflectionType *pType, BYTE *pDefaultValue);
LPCSTR GetName() { return m_Desc.Name; }
// ID3D12ShaderReflectionVariable
STDMETHOD(GetDesc)(D3D12_SHADER_VARIABLE_DESC *pDesc);
STDMETHOD_(ID3D12ShaderReflectionType*, GetType)();
STDMETHOD_(ID3D12ShaderReflectionConstantBuffer*, GetBuffer)();
STDMETHOD_(UINT, GetInterfaceSlot)(THIS_ UINT uArrayIndex);
};
class CShaderReflectionConstantBuffer : public ID3D12ShaderReflectionConstantBuffer
{
protected:
D3D12_SHADER_BUFFER_DESC m_Desc;
std::vector<CShaderReflectionVariable> m_Variables;
public:
CShaderReflectionConstantBuffer() = default;
CShaderReflectionConstantBuffer(CShaderReflectionConstantBuffer &&other) {
m_Desc = other.m_Desc;
std::swap(m_Variables, other.m_Variables);
}
void Initialize(DxilModule &M,
DxilCBuffer &CB,
std::vector<std::unique_ptr<CShaderReflectionType>>& allTypes);
void InitializeStructuredBuffer(DxilModule &M,
DxilResource &R,
std::vector<std::unique_ptr<CShaderReflectionType>>& allTypes);
LPCSTR GetName() { return m_Desc.Name; }
// ID3D12ShaderReflectionConstantBuffer
STDMETHOD(GetDesc)(D3D12_SHADER_BUFFER_DESC *pDesc);
STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByIndex)(UINT Index);
STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByName)(LPCSTR Name);
};
// Invalid type sentinel definitions
class CInvalidSRType;
class CInvalidSRVariable;
class CInvalidSRConstantBuffer;
class CInvalidSRLibraryFunction;
class CInvalidSRFunctionParameter;
class CInvalidSRType : public ID3D12ShaderReflectionType {
STDMETHOD(GetDesc)(D3D12_SHADER_TYPE_DESC *pDesc) { return E_FAIL; }
STDMETHOD_(ID3D12ShaderReflectionType*, GetMemberTypeByIndex)(UINT Index);
STDMETHOD_(ID3D12ShaderReflectionType*, GetMemberTypeByName)(LPCSTR Name);
STDMETHOD_(LPCSTR, GetMemberTypeName)(UINT Index) { return "$Invalid"; }
STDMETHOD(IsEqual)(THIS_ ID3D12ShaderReflectionType* pType) { return E_FAIL; }
STDMETHOD_(ID3D12ShaderReflectionType*, GetSubType)(THIS);
STDMETHOD_(ID3D12ShaderReflectionType*, GetBaseClass)(THIS);
STDMETHOD_(UINT, GetNumInterfaces)(THIS) { return 0; }
STDMETHOD_(ID3D12ShaderReflectionType*, GetInterfaceByIndex)(THIS_ UINT uIndex);
STDMETHOD(IsOfType)(THIS_ ID3D12ShaderReflectionType* pType) { return E_FAIL; }
STDMETHOD(ImplementsInterface)(THIS_ ID3D12ShaderReflectionType* pBase) { return E_FAIL; }
};
static CInvalidSRType g_InvalidSRType;
ID3D12ShaderReflectionType* CInvalidSRType::GetMemberTypeByIndex(UINT) { return &g_InvalidSRType; }
ID3D12ShaderReflectionType* CInvalidSRType::GetMemberTypeByName(LPCSTR) { return &g_InvalidSRType; }
ID3D12ShaderReflectionType* CInvalidSRType::GetSubType() { return &g_InvalidSRType; }
ID3D12ShaderReflectionType* CInvalidSRType::GetBaseClass() { return &g_InvalidSRType; }
ID3D12ShaderReflectionType* CInvalidSRType::GetInterfaceByIndex(UINT) { return &g_InvalidSRType; }
class CInvalidSRVariable : public ID3D12ShaderReflectionVariable {
STDMETHOD(GetDesc)(D3D12_SHADER_VARIABLE_DESC *pDesc) { return E_FAIL; }
STDMETHOD_(ID3D12ShaderReflectionType*, GetType)() { return &g_InvalidSRType; }
STDMETHOD_(ID3D12ShaderReflectionConstantBuffer*, GetBuffer)();
STDMETHOD_(UINT, GetInterfaceSlot)(THIS_ UINT uIndex) { return UINT_MAX; }
};
static CInvalidSRVariable g_InvalidSRVariable;
class CInvalidSRConstantBuffer : public ID3D12ShaderReflectionConstantBuffer {
STDMETHOD(GetDesc)(D3D12_SHADER_BUFFER_DESC *pDesc) { return E_FAIL; }
STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByIndex)(UINT Index) { return &g_InvalidSRVariable; }
STDMETHOD_(ID3D12ShaderReflectionVariable*, GetVariableByName)(LPCSTR Name) { return &g_InvalidSRVariable; }
};
static CInvalidSRConstantBuffer g_InvalidSRConstantBuffer;
void CShaderReflectionVariable::Initialize(
CShaderReflectionConstantBuffer *pBuffer, D3D12_SHADER_VARIABLE_DESC *pDesc,
CShaderReflectionType *pType, BYTE *pDefaultValue) {
m_pBuffer = pBuffer;
memcpy(&m_Desc, pDesc, sizeof(m_Desc));
m_pType = pType;
m_pDefaultValue = pDefaultValue;
}
HRESULT CShaderReflectionVariable::GetDesc(D3D12_SHADER_VARIABLE_DESC *pDesc) {
if (!pDesc) return E_POINTER;
memcpy(pDesc, &m_Desc, sizeof(m_Desc));
return S_OK;
}
ID3D12ShaderReflectionType *CShaderReflectionVariable::GetType() {
return m_pType;
}
ID3D12ShaderReflectionConstantBuffer *CShaderReflectionVariable::GetBuffer() {
return m_pBuffer;
}
UINT CShaderReflectionVariable::GetInterfaceSlot(UINT uArrayIndex) {
return UINT_MAX;
}
ID3D12ShaderReflectionConstantBuffer *CInvalidSRVariable::GetBuffer() {
return &g_InvalidSRConstantBuffer;
}
STDMETHODIMP CShaderReflectionType::GetDesc(D3D12_SHADER_TYPE_DESC *pDesc)
{
if (!pDesc) return E_POINTER;
memcpy(pDesc, &m_Desc, sizeof(m_Desc));
return S_OK;
}
STDMETHODIMP_(ID3D12ShaderReflectionType*) CShaderReflectionType::GetMemberTypeByIndex(UINT Index)
{
if (Index >= m_MemberTypes.size()) {
return &g_InvalidSRType;
}
return m_MemberTypes[Index];
}
STDMETHODIMP_(LPCSTR) CShaderReflectionType::GetMemberTypeName(UINT Index)
{
if (Index >= m_MemberTypes.size()) {
return nullptr;
}
return (LPCSTR) m_MemberNames[Index].bytes_begin();
}
STDMETHODIMP_(ID3D12ShaderReflectionType*) CShaderReflectionType::GetMemberTypeByName(LPCSTR Name)
{
UINT memberCount = m_Desc.Members;
for( UINT mm = 0; mm < memberCount; ++mm ) {
if( m_MemberNames[mm] == Name ) {
return m_MemberTypes[mm];
}
}
return nullptr;
}
STDMETHODIMP CShaderReflectionType::IsEqual(THIS_ ID3D12ShaderReflectionType* pType)
{
// TODO: implement this check, if users actually depend on it
return S_FALSE;
}
STDMETHODIMP_(ID3D12ShaderReflectionType*) CShaderReflectionType::GetSubType(THIS)
{
// TODO: implement `class`-related features, if requested
return nullptr;
}
STDMETHODIMP_(ID3D12ShaderReflectionType*) CShaderReflectionType::GetBaseClass(THIS)
{
// TODO: implement `class`-related features, if requested
return nullptr;
}
STDMETHODIMP_(UINT) CShaderReflectionType::GetNumInterfaces(THIS)
{
// HLSL interfaces have been deprecated
return 0;
}
STDMETHODIMP_(ID3D12ShaderReflectionType*) CShaderReflectionType::GetInterfaceByIndex(THIS_ UINT uIndex)
{
// HLSL interfaces have been deprecated
return nullptr;
}
STDMETHODIMP CShaderReflectionType::IsOfType(THIS_ ID3D12ShaderReflectionType* pType)
{
// TODO: implement `class`-related features, if requested
return S_FALSE;
}
STDMETHODIMP CShaderReflectionType::ImplementsInterface(THIS_ ID3D12ShaderReflectionType* pBase)
{
// HLSL interfaces have been deprecated
return S_FALSE;
}
// Helper routine for types that don't have an obvious mapping
// to the existing shader reflection interface.
static bool ProcessUnhandledObjectType(
llvm::StructType *structType,
D3D_SHADER_VARIABLE_TYPE *outObjectType)
{
// Don't actually make this a hard error, but instead report the problem using a suitable debug message.
#ifdef DBG
OutputDebugFormatA("DxilContainerReflection.cpp: error: unhandled object type '%s'.\n", structType->getName().str().c_str());
#endif
*outObjectType = D3D_SVT_VOID;
return true;
}
// Helper routine to try to detect if a type represents an HLSL "object" type
// (a texture, sampler, buffer, etc.), and to extract the coresponding shader
// reflection type.
static bool TryToDetectObjectType(
llvm::StructType *structType,
D3D_SHADER_VARIABLE_TYPE *outObjectType)
{
// Note: This logic is largely duplicated from `HLModule::IsHLSLObjectType`
// with the addition of returning the appropriate reflection type tag.
//
// That logic looks error-prone, since it relies on string tests against
// type names, including cases that just test against a prefix.
// This code doesn't try to be any more robust.
StringRef name = structType->getName();
if(name.startswith("dx.types.wave_t") )
{
return ProcessUnhandledObjectType(structType, outObjectType);
}
// Strip off some prefixes we are likely to see.
name = name.ltrim("class.");
name = name.ltrim("struct.");
// Slice types occur as intermediates (they aren not objects)
if(name.endswith("_slice_type")) { return false; }
// We might check for an exact name match, or a prefix match
#define EXACT_MATCH(NAME, TAG) \
else if(name == #NAME) do { *outObjectType = TAG; return true; } while(0)
#define PREFIX_MATCH(NAME, TAG) \
else if(name.startswith(#NAME)) do { *outObjectType = TAG; return true; } while(0)
if(0) {}
EXACT_MATCH(SamplerState, D3D_SVT_SAMPLER);
EXACT_MATCH(SamplerComparisonState, D3D_SVT_SAMPLER);
// Note: GS output stream types are supported in the reflection interface.
else if(name.startswith("TriangleStream")) { return ProcessUnhandledObjectType(structType, outObjectType); }
else if(name.startswith("PointStream")) { return ProcessUnhandledObjectType(structType, outObjectType); }
else if(name.startswith("LineStream")) { return ProcessUnhandledObjectType(structType, outObjectType); }
PREFIX_MATCH(AppendStructuredBuffer, D3D_SVT_APPEND_STRUCTURED_BUFFER);
PREFIX_MATCH(ConsumeStructuredBuffer, D3D_SVT_CONSUME_STRUCTURED_BUFFER);
PREFIX_MATCH(ConstantBuffer, D3D_SVT_CBUFFER);
// Note: the `HLModule` code does this trick to avoid checking more names
// than it has to, but it doesn't seem 100% correct to do this.
// TODO: consider just listing the `RasterizerOrdered` cases explicitly,
// just as we do for the `RW` cases already.
name = name.ltrim("RasterizerOrdered");
if(0) {}
EXACT_MATCH(ByteAddressBuffer, D3D_SVT_BYTEADDRESS_BUFFER);
EXACT_MATCH(RWByteAddressBuffer, D3D_SVT_RWBYTEADDRESS_BUFFER);
PREFIX_MATCH(Buffer, D3D_SVT_BUFFER);
PREFIX_MATCH(RWBuffer, D3D_SVT_RWBUFFER);
PREFIX_MATCH(StructuredBuffer, D3D_SVT_STRUCTURED_BUFFER);
PREFIX_MATCH(RWStructuredBuffer, D3D_SVT_RWSTRUCTURED_BUFFER);
PREFIX_MATCH(Texture1D, D3D_SVT_TEXTURE1D);
PREFIX_MATCH(RWTexture1D, D3D_SVT_RWTEXTURE1D);
PREFIX_MATCH(Texture1DArray, D3D_SVT_TEXTURE1DARRAY);
PREFIX_MATCH(RWTexture1DArray, D3D_SVT_RWTEXTURE1DARRAY);
PREFIX_MATCH(Texture2D, D3D_SVT_TEXTURE2D);
PREFIX_MATCH(RWTexture2D, D3D_SVT_RWTEXTURE2D);
PREFIX_MATCH(Texture2DArray, D3D_SVT_TEXTURE2DARRAY);
PREFIX_MATCH(RWTexture2DArray, D3D_SVT_RWTEXTURE2DARRAY);
PREFIX_MATCH(Texture3D, D3D_SVT_TEXTURE3D);
PREFIX_MATCH(RWTexture3D, D3D_SVT_RWTEXTURE3D);
PREFIX_MATCH(TextureCube, D3D_SVT_TEXTURECUBE);
PREFIX_MATCH(TextureCubeArray, D3D_SVT_TEXTURECUBEARRAY);
PREFIX_MATCH(Texture2DMS, D3D_SVT_TEXTURE2DMS);
PREFIX_MATCH(Texture2DMSArray, D3D_SVT_TEXTURE2DMSARRAY);
#undef EXACT_MATCH
#undef PREFIX_MATCH
// Default: not an object type
return false;
}
// Helper to determine if an LLVM type represents an HLSL
// object type (uses the `TryToDetectObjectType()` function
// defined previously).
static bool IsObjectType(
llvm::Type* inType)
{
llvm::Type* type = inType;
while(type->isArrayTy())
{
type = type->getArrayElementType();
}
llvm::StructType* structType = dyn_cast<StructType>(type);
if(!structType)
return false;
D3D_SHADER_VARIABLE_TYPE ignored;
return TryToDetectObjectType(structType, &ignored);
}
// Main logic for translating an LLVM type and associated
// annotations into a D3D shader reflection type.
HRESULT CShaderReflectionType::Initialize(
DxilModule &M,
llvm::Type *inType,
DxilFieldAnnotation &typeAnnotation,
unsigned int baseOffset,
std::vector<std::unique_ptr<CShaderReflectionType>>& allTypes)
{
DXASSERT_NOMSG(inType);
// Set a bunch of fields to default values, to avoid duplication.
m_Desc.Rows = 0;
m_Desc.Columns = 0;
m_Desc.Elements = 0;
m_Desc.Members = 0;
// Extract offset relative to parent.
// Note: the `baseOffset` is used in the case where the type in
// question is a field in a constant buffer, since then both the
// field and the variable store the same offset information, and
// we need to zero out the value in the type to avoid the user
// of the reflection interface seeing 2x the correct value.
m_Desc.Offset = typeAnnotation.GetCBufferOffset() - baseOffset;
// Arrays don't seem to be represented directly in the reflection
// data, but only as the `Elements` field being non-zero.
// We "unwrap" any array type here, and then proceed to look
// at the element type.
llvm::Type* type = inType;
while(type->isArrayTy())
{
llvm::Type* elementType = type->getArrayElementType();
// Note: At this point an HLSL matrix type may appear as an ordinary
// array (not wrapped in a `struct`), so `HLMatrixLower::IsMatrixType()`
// is not sufficient. Instead we need to check the field annotation.
//
// We might have an array of matrices, though, so we only exit if
// the field annotation says we have a matrix, and we've bottomed
// out and the element type isn't itself an array.
if(typeAnnotation.HasMatrixAnnotation() && !elementType->isArrayTy())
{
break;
}
// Non-array types should have `Elements` be zero, so as soon as we
// find that we have our first real array (not a matrix), we initialize `Elements`
if(!m_Desc.Elements) m_Desc.Elements = 1;
// It isn't clear what is the desired behavior for multi-dimensional arrays,
// but for now we do the expedient thing of multiplying out all their
// dimensions.
m_Desc.Elements *= type->getArrayNumElements();
type = elementType;
}
// Default to a scalar type, just to avoid some duplication later.
m_Desc.Class = D3D_SVC_SCALAR;
// Look at the annotation to try to determine the basic type of value.
//
// Note that DXIL supports some types that don't currently have equivalents
// in the reflection interface, so we try to muddle through here.
D3D_SHADER_VARIABLE_TYPE componentType = D3D_SVT_VOID;
switch(typeAnnotation.GetCompType().GetKind())
{
case hlsl::DXIL::ComponentType::Invalid:
break;
case hlsl::DXIL::ComponentType::I1:
componentType = D3D_SVT_BOOL;
m_Name = "bool";
break;
case hlsl::DXIL::ComponentType::I16:
componentType = D3D_SVT_MIN16INT;
m_Name = "min16int";
break;
case hlsl::DXIL::ComponentType::U16:
componentType = D3D_SVT_MIN16UINT;
m_Name = "min16uint";
break;
case hlsl::DXIL::ComponentType::I64:
#ifdef DBG
OutputDebugStringA("DxilContainerReflection.cpp: warning: component of type 'I64' being reflected as if 'I32'\n");
#endif
case hlsl::DXIL::ComponentType::I32:
componentType = D3D_SVT_INT;
m_Name = "int";
break;
case hlsl::DXIL::ComponentType::U64:
#ifdef DBG
OutputDebugStringA("DxilContainerReflection.cpp: warning: component of type 'U64' being reflected as if 'U32'\n");
#endif
case hlsl::DXIL::ComponentType::U32:
componentType = D3D_SVT_UINT;
m_Name = "uint";
break;
case hlsl::DXIL::ComponentType::F16:
case hlsl::DXIL::ComponentType::SNormF16:
case hlsl::DXIL::ComponentType::UNormF16:
componentType = D3D_SVT_MIN16FLOAT;
m_Name = "min16float";
break;
case hlsl::DXIL::ComponentType::F32:
case hlsl::DXIL::ComponentType::SNormF32:
case hlsl::DXIL::ComponentType::UNormF32:
componentType = D3D_SVT_FLOAT;
m_Name = "float";
break;
case hlsl::DXIL::ComponentType::F64:
case hlsl::DXIL::ComponentType::SNormF64:
case hlsl::DXIL::ComponentType::UNormF64:
componentType = D3D_SVT_DOUBLE;
m_Name = "double";
break;
default:
#ifdef DBG
OutputDebugStringA("DxilContainerReflection.cpp: error: unknown component type\n");
#endif
break;
}
m_Desc.Type = componentType;
// A matrix type is encoded as a vector type, plus annotations, so we
// need to check for this case before other vector cases.
if(typeAnnotation.HasMatrixAnnotation())
{
// We can extract the details from the annotation.
DxilMatrixAnnotation const& matrixAnnotation = typeAnnotation.GetMatrixAnnotation();
switch(matrixAnnotation.Orientation)
{
default:
#ifdef DBG
OutputDebugStringA("DxilContainerReflection.cpp: error: unknown matrix orientation\n");
#endif
// Note: column-major layout is the default
case hlsl::MatrixOrientation::Undefined:
case hlsl::MatrixOrientation::ColumnMajor:
m_Desc.Class = D3D_SVC_MATRIX_COLUMNS;
break;
case hlsl::MatrixOrientation::RowMajor:
m_Desc.Class = D3D_SVC_MATRIX_ROWS;
break;
}
m_Desc.Rows = matrixAnnotation.Rows;
m_Desc.Columns = matrixAnnotation.Cols;
m_Name += std::to_string(matrixAnnotation.Rows) + "x" + std::to_string(matrixAnnotation.Cols);
}
else if( type->isVectorTy() )
{
// We assume that LLVM vectors either represent matrices (handled above)
// or HLSL vectors.
//
// Note: the reflection interface encodes an N-vector as if it had 1 row
// and N columns.
m_Desc.Class = D3D_SVC_VECTOR;
m_Desc.Rows = 1;
m_Desc.Columns = type->getVectorNumElements();
m_Name += std::to_string(type->getVectorNumElements());
}
else if( type->isStructTy() )
{
// A struct type might be an ordinary user-defined `struct`,
// or one of the builtin in HLSL "object" types.
StructType *structType = cast<StructType>(type);
// We use our function to try to detect an object type
// based on its name.
if(TryToDetectObjectType(structType, &m_Desc.Type))
{
m_Desc.Class = D3D_SVC_OBJECT;
}
else
{
// Otherwise we have a struct and need to recurse on its fields.
m_Desc.Class = D3D_SVC_STRUCT;
m_Desc.Rows = 1;
// Try to "clean" the type name for use in reflection data
llvm::StringRef name = structType->getName();
name = name.ltrim("dx.alignment.legacy.");
name = name.ltrim("struct.");
m_Name = name;
unsigned int fieldCount = type->getStructNumElements();
// Fields may have annotations, and we need to look at these
// in order to decode their types properly.
DxilTypeSystem &typeSys = M.GetTypeSystem();
DxilStructAnnotation *structAnnotation = typeSys.GetStructAnnotation(structType);
DXASSERT(structAnnotation, "else type system is missing annotations for user-defined struct");
// The DXBC reflection info computes `Columns` for a
// `struct` type from the fields (see below)
UINT columnCounter = 0;
for(unsigned int ff = 0; ff < fieldCount; ++ff)
{
DxilFieldAnnotation& fieldAnnotation = structAnnotation->GetFieldAnnotation(ff);
llvm::Type* fieldType = structType->getStructElementType(ff);
// Skip fields with object types, since applications may not expect to see them here.
//
// TODO: should skipping be context-dependent, since we might not be inside
// a constant buffer?
if( IsObjectType(fieldType) )
{
continue;
}
CShaderReflectionType *fieldReflectionType = new CShaderReflectionType();
allTypes.push_back(std::unique_ptr<CShaderReflectionType>(fieldReflectionType));
fieldReflectionType->Initialize(M, fieldType, fieldAnnotation, 0, allTypes);
m_MemberTypes.push_back(fieldReflectionType);
m_MemberNames.push_back(fieldAnnotation.GetFieldName().c_str());
// Effectively, we want to add one to `Columns` for every scalar nested recursively
// inside this `struct` type (ignoring objects, which we filtered above). We should
// be able to compute this as the product of the `Columns`, `Rows` and `Elements`
// of each field, with the caveat that some of these may be zero, but shoud be
// treated as one.
columnCounter +=
(fieldReflectionType->m_Desc.Columns ? fieldReflectionType->m_Desc.Columns : 1)
* (fieldReflectionType->m_Desc.Rows ? fieldReflectionType->m_Desc.Rows : 1)
* (fieldReflectionType->m_Desc.Elements ? fieldReflectionType->m_Desc.Elements : 1);
}
m_Desc.Columns = columnCounter;
// Because we might have skipped fields during enumeration,
// the `Members` count in the description might not be the same
// as the field count of the original LLVM type.
m_Desc.Members = m_MemberTypes.size();
}
}
else if( type->isPointerTy() )
{
#ifdef DBG
OutputDebugStringA("DxilContainerReflection.cpp: error: cannot reflect pointer type\n");
#endif
}
else if( type->isVoidTy() )
{
// Name for `void` wasn't handle in the component-type `switch` above
m_Name = "void";
m_Desc.Class = D3D_SVC_SCALAR;
m_Desc.Rows = 1;
m_Desc.Columns = 1;
}
else
{
// Assume we have a scalar at this point.
m_Desc.Class = D3D_SVC_SCALAR;
m_Desc.Rows = 1;
m_Desc.Columns = 1;
// Special-case naming
switch(m_Desc.Type)
{
default:
break;
case D3D_SVT_UINT:
// Scalar `uint` gets reflected as `dword`, while vectors/matrices use `uint`...
m_Name = "dword";
break;
}
}
// TODO: are there other cases to be handled?
m_Desc.Name = m_Name.c_str();
return S_OK;
}
void CShaderReflectionConstantBuffer::Initialize(
DxilModule &M,
DxilCBuffer &CB,
std::vector<std::unique_ptr<CShaderReflectionType>>& allTypes) {
ZeroMemory(&m_Desc, sizeof(m_Desc));
m_Desc.Name = CB.GetGlobalName().c_str();
m_Desc.Size = CB.GetSize() / CB.GetRangeSize();
m_Desc.Size = (m_Desc.Size + 0x0f) & ~(0x0f); // Round up to 16 bytes for reflection.
m_Desc.Type = D3D_CT_CBUFFER;
m_Desc.uFlags = 0;
Type *Ty = CB.GetGlobalSymbol()->getType()->getPointerElementType();
// For ConstantBuffer<> buf[2], the array size is in Resource binding count
// part.
if (Ty->isArrayTy())
Ty = Ty->getArrayElementType();
DxilTypeSystem &typeSys = M.GetTypeSystem();
StructType *ST = cast<StructType>(Ty);
DxilStructAnnotation *annotation =
typeSys.GetStructAnnotation(cast<StructType>(ST));
// Dxil from dxbc doesn't have annotation.
if (!annotation)
return;
m_Desc.Variables = ST->getNumContainedTypes();
unsigned lastIndex = ST->getNumContainedTypes() - 1;
for (unsigned i = 0; i < ST->getNumContainedTypes(); ++i) {
DxilFieldAnnotation &fieldAnnotation = annotation->GetFieldAnnotation(i);
D3D12_SHADER_VARIABLE_DESC VarDesc;
ZeroMemory(&VarDesc, sizeof(VarDesc));
VarDesc.uFlags |= D3D_SVF_USED; // Will update in SetCBufferUsage.
CShaderReflectionVariable Var;
//Create reflection type.
CShaderReflectionType *pVarType = new CShaderReflectionType();
allTypes.push_back(std::unique_ptr<CShaderReflectionType>(pVarType));
pVarType->Initialize(M, ST->getContainedType(i), fieldAnnotation, fieldAnnotation.GetCBufferOffset(), allTypes);
BYTE *pDefaultValue = nullptr;
VarDesc.Name = fieldAnnotation.GetFieldName().c_str();
VarDesc.StartOffset = fieldAnnotation.GetCBufferOffset();
if (i < lastIndex) {
DxilFieldAnnotation &nextFieldAnnotation =
annotation->GetFieldAnnotation(i + 1);
VarDesc.Size = nextFieldAnnotation.GetCBufferOffset() - fieldAnnotation.GetCBufferOffset();
}
else {
VarDesc.Size = CB.GetSize() - fieldAnnotation.GetCBufferOffset();
}
Var.Initialize(this, &VarDesc, pVarType, pDefaultValue);
m_Variables.push_back(Var);
}
}
static unsigned CalcTypeSize(Type *Ty) {
// Assume aligned values.
if (Ty->isIntegerTy() || Ty->isFloatTy()) {
return Ty->getPrimitiveSizeInBits() / 8;
}
else if (Ty->isArrayTy()) {
ArrayType *AT = dyn_cast<ArrayType>(Ty);
return AT->getNumElements() * CalcTypeSize(AT->getArrayElementType());
}
else if (Ty->isStructTy()) {
StructType *ST = dyn_cast<StructType>(Ty);
unsigned i = 0, c = ST->getStructNumElements();
unsigned result = 0;
for (; i < c; ++i) {
result += CalcTypeSize(ST->getStructElementType(i));
// TODO: align!
}
return result;
}
else if (Ty->isVectorTy()) {
VectorType *VT = dyn_cast<VectorType>(Ty);
return VT->getVectorNumElements() * CalcTypeSize(VT->getVectorElementType());
}
else {
DXASSERT_NOMSG(false);
return 0;
}
}
static unsigned CalcResTypeSize(DxilModule &M, DxilResource &R) {
UNREFERENCED_PARAMETER(M);
Type *Ty = R.GetGlobalSymbol()->getType()->getPointerElementType();
return CalcTypeSize(Ty);
}
void CShaderReflectionConstantBuffer::InitializeStructuredBuffer(
DxilModule &M,
DxilResource &R,
std::vector<std::unique_ptr<CShaderReflectionType>>& allTypes) {
ZeroMemory(&m_Desc, sizeof(m_Desc));
m_Desc.Name = R.GetGlobalName().c_str();
//m_Desc.Size = R.GetSize();
m_Desc.Type = D3D11_CT_RESOURCE_BIND_INFO;
m_Desc.uFlags = 0;
m_Desc.Variables = 1;
D3D12_SHADER_VARIABLE_DESC VarDesc;
ZeroMemory(&VarDesc, sizeof(VarDesc));
VarDesc.Name = "$Element";
VarDesc.Size = CalcResTypeSize(M, R); // aligned bytes
VarDesc.StartTexture = UINT_MAX;
VarDesc.StartSampler = UINT_MAX;
VarDesc.uFlags |= D3D_SVF_USED; // TODO: not necessarily true
CShaderReflectionVariable Var;
CShaderReflectionType *pVarType = nullptr;
// Create reflection type, if we have the necessary annotation info
// Extract the `struct` that wraps element type of the buffer resource
Constant *GV = R.GetGlobalSymbol();
Type *Ty = GV->getType()->getPointerElementType();
if(Ty->isArrayTy())
Ty = Ty->getArrayElementType();
StructType *ST = cast<StructType>(Ty);
// Look up struct type annotation on the element type
DxilTypeSystem &typeSys = M.GetTypeSystem();
DxilStructAnnotation *annotation =
typeSys.GetStructAnnotation(cast<StructType>(ST));
// Dxil from dxbc doesn't have annotation.
if(annotation)
{
// Actually create the reflection type.
pVarType = new CShaderReflectionType();
allTypes.push_back(std::unique_ptr<CShaderReflectionType>(pVarType));
// The user-visible element type is the first field of the wrapepr `struct`
Type *fieldType = ST->getElementType(0);
DxilFieldAnnotation &fieldAnnotation = annotation->GetFieldAnnotation(0);
pVarType->Initialize(M, fieldType, fieldAnnotation, fieldAnnotation.GetCBufferOffset(), allTypes);
}
BYTE *pDefaultValue = nullptr;
Var.Initialize(this, &VarDesc, pVarType, pDefaultValue);
m_Variables.push_back(Var);
m_Desc.Size = VarDesc.Size;
}
HRESULT CShaderReflectionConstantBuffer::GetDesc(D3D12_SHADER_BUFFER_DESC *pDesc) {
if (!pDesc)
return E_POINTER;
memcpy(pDesc, &m_Desc, sizeof(m_Desc));
return S_OK;
}
ID3D12ShaderReflectionVariable *
CShaderReflectionConstantBuffer::GetVariableByIndex(UINT Index) {
if (Index >= m_Variables.size()) {
return &g_InvalidSRVariable;
}
return &m_Variables[Index];
}
ID3D12ShaderReflectionVariable *
CShaderReflectionConstantBuffer::GetVariableByName(LPCSTR Name) {
UINT index;
if (NULL == Name) {
return &g_InvalidSRVariable;
}
for (index = 0; index < m_Variables.size(); ++index) {
if (0 == strcmp(m_Variables[index].GetName(), Name)) {
return &m_Variables[index];
}
}
return &g_InvalidSRVariable;
}
///////////////////////////////////////////////////////////////////////////////
// DxilShaderReflection implementation. //
static DxilResource *DxilResourceFromBase(DxilResourceBase *RB) {
DxilResourceBase::Class C = RB->GetClass();
if (C == DXIL::ResourceClass::UAV || C == DXIL::ResourceClass::SRV)
return (DxilResource *)RB;
return nullptr;
}
static D3D_SHADER_INPUT_TYPE ResourceToShaderInputType(DxilResourceBase *RB) {
DxilResource *R = DxilResourceFromBase(RB);
bool isUAV = RB->GetClass() == DxilResourceBase::Class::UAV;
switch (RB->GetKind()) {
case DxilResource::Kind::CBuffer:
return D3D_SIT_CBUFFER;
case DxilResource::Kind::Sampler:
return D3D_SIT_SAMPLER;
case DxilResource::Kind::RawBuffer:
return isUAV ? D3D_SIT_UAV_RWBYTEADDRESS : D3D_SIT_BYTEADDRESS;
case DxilResource::Kind::StructuredBuffer: {
if (!isUAV) return D3D_SIT_STRUCTURED;
// TODO: D3D_SIT_UAV_CONSUME_STRUCTURED, D3D_SIT_UAV_APPEND_STRUCTURED?
if (R->HasCounter()) return D3D_SIT_UAV_RWSTRUCTURED_WITH_COUNTER;
return D3D_SIT_UAV_RWSTRUCTURED;
}
case DxilResource::Kind::TypedBuffer:
return isUAV ? D3D_SIT_UAV_RWTYPED : D3D_SIT_STRUCTURED;
case DxilResource::Kind::Texture1D:
case DxilResource::Kind::Texture1DArray:
case DxilResource::Kind::Texture2D:
case DxilResource::Kind::Texture2DArray:
case DxilResource::Kind::Texture2DMS:
case DxilResource::Kind::Texture2DMSArray:
case DxilResource::Kind::Texture3D:
case DxilResource::Kind::TextureCube:
case DxilResource::Kind::TextureCubeArray:
return R->IsRW() ? D3D_SIT_UAV_RWTYPED : D3D_SIT_TEXTURE;
default:
return (D3D_SHADER_INPUT_TYPE)0;
}
}
static D3D_RESOURCE_RETURN_TYPE ResourceToReturnType(DxilResourceBase *RB) {
DxilResource *R = DxilResourceFromBase(RB);
if (R != nullptr) {
CompType CT = R->GetCompType();
if (CT.GetKind() == CompType::Kind::F64) return D3D_RETURN_TYPE_DOUBLE;
if (CT.IsUNorm()) return D3D_RETURN_TYPE_UNORM;
if (CT.IsSNorm()) return D3D_RETURN_TYPE_SNORM;
if (CT.IsSIntTy()) return D3D_RETURN_TYPE_SINT;
if (CT.IsUIntTy()) return D3D_RETURN_TYPE_UINT;
if (CT.IsFloatTy()) return D3D_RETURN_TYPE_FLOAT;
// D3D_RETURN_TYPE_CONTINUED: Return type is a multiple-dword type, such as a
// double or uint64, and the component is continued from the previous
// component that was declared. The first component represents the lower bits.
return D3D_RETURN_TYPE_MIXED;
}
return (D3D_RESOURCE_RETURN_TYPE)0;
}
static D3D_SRV_DIMENSION ResourceToDimension(DxilResourceBase *RB) {
switch (RB->GetKind()) {
case DxilResource::Kind::StructuredBuffer:
case DxilResource::Kind::TypedBuffer:
return D3D_SRV_DIMENSION_BUFFER;
case DxilResource::Kind::Texture1D:
return D3D_SRV_DIMENSION_TEXTURE1D;
case DxilResource::Kind::Texture1DArray:
return D3D_SRV_DIMENSION_TEXTURE1DARRAY;
case DxilResource::Kind::Texture2D:
return D3D_SRV_DIMENSION_TEXTURE2D;
case DxilResource::Kind::Texture2DArray:
return D3D_SRV_DIMENSION_TEXTURE2DARRAY;
case DxilResource::Kind::Texture2DMS:
return D3D_SRV_DIMENSION_TEXTURE2DMS;
case DxilResource::Kind::Texture2DMSArray:
return D3D_SRV_DIMENSION_TEXTURE2DMSARRAY;
case DxilResource::Kind::Texture3D:
return D3D_SRV_DIMENSION_TEXTURE3D;
case DxilResource::Kind::TextureCube:
return D3D_SRV_DIMENSION_TEXTURECUBE;
case DxilResource::Kind::TextureCubeArray:
return D3D_SRV_DIMENSION_TEXTURECUBEARRAY;
case DxilResource::Kind::RawBuffer:
return D3D11_SRV_DIMENSION_BUFFER; // D3D11_SRV_DIMENSION_BUFFEREX?
default:
return D3D_SRV_DIMENSION_UNKNOWN;
}
}
static UINT ResourceToFlags(DxilResourceBase *RB) {
UINT result = 0;
DxilResource *R = DxilResourceFromBase(RB);
if (R != nullptr &&
(R->IsAnyTexture() || R->GetKind() == DXIL::ResourceKind::TypedBuffer)) {
llvm::Type *RetTy = R->GetRetType();
if (VectorType *VT = dyn_cast<VectorType>(RetTy)) {
unsigned vecSize = VT->getNumElements();
switch (vecSize) {
case 4:
result |= D3D_SIF_TEXTURE_COMPONENTS;
break;
case 3:
result |= D3D_SIF_TEXTURE_COMPONENT_1;
break;
case 2:
result |= D3D_SIF_TEXTURE_COMPONENT_0;
break;
}
}
}
// D3D_SIF_USERPACKED
if (RB->GetClass() == DXIL::ResourceClass::Sampler) {
DxilSampler *S = static_cast<DxilSampler *>(RB);
if (S->GetSamplerKind() == DXIL::SamplerKind::Comparison)
result |= D3D_SIF_COMPARISON_SAMPLER;
}
return result;
}
void DxilShaderReflection::CreateReflectionObjectForResource(DxilResourceBase *RB) {
DxilResourceBase::Class C = RB->GetClass();
DxilResource *R =
(C == DXIL::ResourceClass::UAV || C == DXIL::ResourceClass::SRV)
? (DxilResource *)RB
: nullptr;
D3D12_SHADER_INPUT_BIND_DESC inputBind;
ZeroMemory(&inputBind, sizeof(inputBind));
inputBind.BindCount = RB->GetRangeSize();
if (RB->GetRangeSize() == UINT_MAX)
inputBind.BindCount = 0;
inputBind.BindPoint = RB->GetLowerBound();
inputBind.Dimension = ResourceToDimension(RB);
inputBind.Name = RB->GetGlobalName().c_str();
inputBind.Type = ResourceToShaderInputType(RB);
if (R == nullptr) {
inputBind.NumSamples = 0;
}
else {
inputBind.NumSamples = R->GetSampleCount();
if (inputBind.NumSamples == 0) {
if (R->IsStructuredBuffer()) {
inputBind.NumSamples = CalcResTypeSize(*m_pDxilModule, *R);
}
else if (!R->IsRawBuffer()) {
inputBind.NumSamples = 0xFFFFFFFF;
}
}
}
inputBind.ReturnType = ResourceToReturnType(RB);
inputBind.Space = RB->GetSpaceID();
inputBind.uFlags = ResourceToFlags(RB);
inputBind.uID = RB->GetID();
m_Resources.push_back(inputBind);
}
// Find the imm offset part from a value.
// It must exist unless offset is 0.
static unsigned GetCBOffset(Value *V) {
if (ConstantInt *Imm = dyn_cast<ConstantInt>(V))
return Imm->getLimitedValue();
else if (UnaryInstruction *UI = dyn_cast<UnaryInstruction>(V)) {
return 0;
} else if (BinaryOperator *BO = dyn_cast<BinaryOperator>(V)) {
switch (BO->getOpcode()) {
case Instruction::Add: {
unsigned left = GetCBOffset(BO->getOperand(0));
unsigned right = GetCBOffset(BO->getOperand(1));
return left + right;
} break;
case Instruction::Or: {
unsigned left = GetCBOffset(BO->getOperand(0));
unsigned right = GetCBOffset(BO->getOperand(1));
return left | right;
} break;
default:
return 0;
}
} else {
return 0;
}
}
void CollectInPhiChain(PHINode *cbUser, std::vector<unsigned> &cbufUsage,
unsigned offset, std::unordered_set<Value *> &userSet) {
if (userSet.count(cbUser) > 0)
return;
userSet.insert(cbUser);
for (User *cbU : cbUser->users()) {
if (ExtractValueInst *EV = dyn_cast<ExtractValueInst>(cbU)) {
for (unsigned idx : EV->getIndices()) {
cbufUsage.emplace_back(offset + idx * 4);
}
} else {
PHINode *phi = cast<PHINode>(cbU);
CollectInPhiChain(phi, cbufUsage, offset, userSet);
}
}
}
static void CollectCBufUsage(Value *cbHandle,
std::vector<unsigned> &cbufUsage) {
for (User *U : cbHandle->users()) {
CallInst *CI = cast<CallInst>(U);
ConstantInt *opcodeV =
cast<ConstantInt>(CI->getArgOperand(DXIL::OperandIndex::kOpcodeIdx));
DXIL::OpCode opcode = static_cast<DXIL::OpCode>(opcodeV->getLimitedValue());
if (opcode == DXIL::OpCode::CBufferLoadLegacy) {
DxilInst_CBufferLoadLegacy cbload(CI);
Value *resIndex = cbload.get_regIndex();
unsigned offset = GetCBOffset(resIndex);
// 16 bytes align.
offset <<= 4;
for (User *cbU : U->users()) {
if (ExtractValueInst *EV = dyn_cast<ExtractValueInst>(cbU)) {
for (unsigned idx : EV->getIndices()) {
cbufUsage.emplace_back(offset + idx * 4);
}
} else {
PHINode *phi = cast<PHINode>(cbU);
std::unordered_set<Value *> userSet;
CollectInPhiChain(phi, cbufUsage, offset, userSet);
}
}
} else if (opcode == DXIL::OpCode::CBufferLoad) {
DxilInst_CBufferLoad cbload(CI);
Value *byteOffset = cbload.get_byteOffset();
unsigned offset = GetCBOffset(byteOffset);
cbufUsage.emplace_back(offset);
} else {
//
DXASSERT(0, "invalid opcode");
}
}
}
static void SetCBufVarUsage(CShaderReflectionConstantBuffer &cb,
std::vector<unsigned> usage) {
D3D12_SHADER_BUFFER_DESC Desc;
if (FAILED(cb.GetDesc(&Desc)))
return;
unsigned size = Desc.Variables;
std::sort(usage.begin(), usage.end());
for (unsigned i = 0; i < size; i++) {
ID3D12ShaderReflectionVariable *pVar = cb.GetVariableByIndex(i);
D3D12_SHADER_VARIABLE_DESC VarDesc;
if (FAILED(pVar->GetDesc(&VarDesc)))
continue;
if (!pVar)
continue;
unsigned begin = VarDesc.StartOffset;
unsigned end = begin + VarDesc.Size;
auto beginIt = std::find_if(usage.begin(), usage.end(),
[&](unsigned v) { return v >= begin; });
auto endIt = std::find_if(usage.begin(), usage.end(),
[&](unsigned v) { return v >= end; });
bool used = beginIt != endIt;
// Clear used.
if (!used) {
CShaderReflectionType *pVarType = (CShaderReflectionType *)pVar->GetType();
BYTE *pDefaultValue = nullptr;
VarDesc.uFlags &= ~D3D_SVF_USED;
CShaderReflectionVariable *pCVarDesc = (CShaderReflectionVariable*)pVar;
pCVarDesc->Initialize(&cb, &VarDesc, pVarType, pDefaultValue);
}
}
}
void DxilShaderReflection::SetCBufferUsage() {
hlsl::OP *hlslOP = m_pDxilModule->GetOP();
LLVMContext &Ctx = m_pDxilModule->GetCtx();
unsigned cbSize = m_CBs.size();
std::vector< std::vector<unsigned> > cbufUsage(cbSize);
Function *createHandle = hlslOP->GetOpFunc(DXIL::OpCode::CreateHandle, Type::getVoidTy(Ctx));
if (createHandle->user_empty()) {
createHandle->eraseFromParent();
return;
}
// Find all cb handles.
for (User *U : createHandle->users()) {
DxilInst_CreateHandle handle(cast<CallInst>(U));
Value *resClass = handle.get_resourceClass();
ConstantInt *immResClass = cast<ConstantInt>(resClass);
if (immResClass->getLimitedValue() == (unsigned)DXIL::ResourceClass::CBuffer) {
ConstantInt *cbID = cast<ConstantInt>(handle.get_rangeId());
CollectCBufUsage(U, cbufUsage[cbID->getLimitedValue()]);
}
}
for (unsigned i=0;i<cbSize;i++) {
SetCBufVarUsage(m_CBs[i], cbufUsage[i]);
}
}
void DxilShaderReflection::CreateReflectionObjects() {
DXASSERT_NOMSG(m_pDxilModule != nullptr);
// Create constant buffers, resources and signatures.
for (auto && cb : m_pDxilModule->GetCBuffers()) {
CShaderReflectionConstantBuffer rcb;
rcb.Initialize(*m_pDxilModule, *(cb.get()), m_Types);
m_CBs.push_back(std::move(rcb));
}
// Set cbuf usage.
SetCBufferUsage();
// TODO: add tbuffers into m_CBs
for (auto && uav : m_pDxilModule->GetUAVs()) {
if (uav->GetKind() != DxilResource::Kind::StructuredBuffer) {
continue;
}
CShaderReflectionConstantBuffer rcb;
rcb.InitializeStructuredBuffer(*m_pDxilModule, *(uav.get()), m_Types);
m_CBs.push_back(std::move(rcb));
}
for (auto && srv : m_pDxilModule->GetSRVs()) {
if (srv->GetKind() != DxilResource::Kind::StructuredBuffer) {
continue;
}
CShaderReflectionConstantBuffer rcb;
rcb.InitializeStructuredBuffer(*m_pDxilModule, *(srv.get()), m_Types);
m_CBs.push_back(std::move(rcb));
}
// Populate all resources.
for (auto && cbRes : m_pDxilModule->GetCBuffers()) {
CreateReflectionObjectForResource(cbRes.get());
}
for (auto && samplerRes : m_pDxilModule->GetSamplers()) {
CreateReflectionObjectForResource(samplerRes.get());
}
for (auto && srvRes : m_pDxilModule->GetSRVs()) {
CreateReflectionObjectForResource(srvRes.get());
}
for (auto && uavRes : m_pDxilModule->GetUAVs()) {
CreateReflectionObjectForResource(uavRes.get());
}
// Populate input/output/patch constant signatures.
CreateReflectionObjectsForSignature(m_pDxilModule->GetInputSignature(), m_InputSignature);
CreateReflectionObjectsForSignature(m_pDxilModule->GetOutputSignature(), m_OutputSignature);
CreateReflectionObjectsForSignature(m_pDxilModule->GetPatchConstantSignature(), m_PatchConstantSignature);
MarkUsedSignatureElements();
}
static D3D_REGISTER_COMPONENT_TYPE CompTypeToRegisterComponentType(CompType CT) {
switch (CT.GetKind()) {
case DXIL::ComponentType::F16:
case DXIL::ComponentType::F32:
return D3D_REGISTER_COMPONENT_FLOAT32;
case DXIL::ComponentType::I1:
case DXIL::ComponentType::U16:
case DXIL::ComponentType::U32:
return D3D_REGISTER_COMPONENT_UINT32;
case DXIL::ComponentType::I16:
case DXIL::ComponentType::I32:
return D3D_REGISTER_COMPONENT_SINT32;
default:
return D3D_REGISTER_COMPONENT_UNKNOWN;
}
}
static D3D_MIN_PRECISION CompTypeToMinPrecision(CompType CT) {
switch (CT.GetKind()) {
case DXIL::ComponentType::F16:
return D3D_MIN_PRECISION_FLOAT_16;
case DXIL::ComponentType::I16:
return D3D_MIN_PRECISION_SINT_16;
case DXIL::ComponentType::U16:
return D3D_MIN_PRECISION_UINT_16;
default:
return D3D_MIN_PRECISION_DEFAULT;
}
}
D3D_NAME SemanticToSystemValueType(const Semantic *S, DXIL::TessellatorDomain domain) {
switch (S->GetKind()) {
case Semantic::Kind::ClipDistance:
return D3D_NAME_CLIP_DISTANCE;
case Semantic::Kind::Arbitrary:
return D3D_NAME_UNDEFINED;
case Semantic::Kind::VertexID:
return D3D_NAME_VERTEX_ID;
case Semantic::Kind::InstanceID:
return D3D_NAME_INSTANCE_ID;
case Semantic::Kind::Position:
return D3D_NAME_POSITION;
case Semantic::Kind::Coverage:
return D3D_NAME_COVERAGE;
case Semantic::Kind::InnerCoverage:
return D3D_NAME_INNER_COVERAGE;
case Semantic::Kind::PrimitiveID:
return D3D_NAME_PRIMITIVE_ID;
case Semantic::Kind::SampleIndex:
return D3D_NAME_SAMPLE_INDEX;
case Semantic::Kind::IsFrontFace:
return D3D_NAME_IS_FRONT_FACE;
case Semantic::Kind::RenderTargetArrayIndex:
return D3D_NAME_RENDER_TARGET_ARRAY_INDEX;
case Semantic::Kind::ViewPortArrayIndex:
return D3D_NAME_VIEWPORT_ARRAY_INDEX;
case Semantic::Kind::CullDistance:
return D3D_NAME_CULL_DISTANCE;
case Semantic::Kind::Target:
return D3D_NAME_TARGET;
case Semantic::Kind::Depth:
return D3D_NAME_DEPTH;
case Semantic::Kind::DepthLessEqual:
return D3D_NAME_DEPTH_LESS_EQUAL;
case Semantic::Kind::DepthGreaterEqual:
return D3D_NAME_DEPTH_GREATER_EQUAL;
case Semantic::Kind::StencilRef:
return D3D_NAME_STENCIL_REF;
case Semantic::Kind::TessFactor: {
switch (domain) {
case DXIL::TessellatorDomain::IsoLine:
return D3D_NAME_FINAL_LINE_DETAIL_TESSFACTOR;
case DXIL::TessellatorDomain::Tri:
return D3D_NAME_FINAL_TRI_EDGE_TESSFACTOR;
case DXIL::TessellatorDomain::Quad:
return D3D_NAME_FINAL_QUAD_EDGE_TESSFACTOR;
default:
return D3D_NAME_UNDEFINED;
}
}
case Semantic::Kind::InsideTessFactor:
switch (domain) {
case DXIL::TessellatorDomain::Tri:
return D3D_NAME_FINAL_TRI_INSIDE_TESSFACTOR;
case DXIL::TessellatorDomain::Quad:
return D3D_NAME_FINAL_QUAD_INSIDE_TESSFACTOR;
default:
return D3D_NAME_UNDEFINED;
}
case Semantic::Kind::DispatchThreadID:
case Semantic::Kind::GroupID:
case Semantic::Kind::GroupIndex:
case Semantic::Kind::GroupThreadID:
case Semantic::Kind::DomainLocation:
case Semantic::Kind::OutputControlPointID:
case Semantic::Kind::GSInstanceID:
case Semantic::Kind::Invalid:
default:
return D3D_NAME_UNDEFINED;
}
}
static uint8_t NegMask(uint8_t V) {
V ^= 0xF;
return V & 0xF;
}
void DxilShaderReflection::CreateReflectionObjectsForSignature(
const DxilSignature &Sig,
std::vector<D3D12_SIGNATURE_PARAMETER_DESC> &Descs) {
bool clipDistanceSeen = false;
for (auto && SigElem : Sig.GetElements()) {
D3D12_SIGNATURE_PARAMETER_DESC Desc;
// TODO: why do we have multiple SV_ClipDistance elements?
if (SigElem->GetSemantic()->GetKind() == DXIL::SemanticKind::ClipDistance) {
if (clipDistanceSeen) continue;
clipDistanceSeen = true;
}
Desc.ComponentType = CompTypeToRegisterComponentType(SigElem->GetCompType());
Desc.Mask = SigElem->GetColsAsMask();
// D3D11_43 does not have MinPrecison.
if (m_PublicAPI != PublicAPI::D3D11_43)
Desc.MinPrecision = CompTypeToMinPrecision(SigElem->GetCompType());
Desc.ReadWriteMask = Sig.IsInput() ? 0 : Desc.Mask; // Start with output-never-written/input-never-read.
Desc.Register = SigElem->GetStartRow();
Desc.Stream = SigElem->GetOutputStream();
Desc.SystemValueType = SemanticToSystemValueType(SigElem->GetSemantic(), m_pDxilModule->GetTessellatorDomain());
Desc.SemanticName = SigElem->GetName();
if (!SigElem->GetSemantic()->IsArbitrary())
Desc.SemanticName = CreateUpperCase(Desc.SemanticName);
const std::vector<unsigned> &indexVec = SigElem->GetSemanticIndexVec();
for (unsigned semIdx = 0; semIdx < indexVec.size(); ++semIdx) {
Desc.SemanticIndex = indexVec[semIdx];
if (Desc.SystemValueType == D3D_NAME_FINAL_LINE_DETAIL_TESSFACTOR &&
Desc.SemanticIndex == 1)
Desc.SystemValueType = D3D_NAME_FINAL_LINE_DETAIL_TESSFACTOR;
Descs.push_back(Desc);
}
}
}
LPCSTR DxilShaderReflection::CreateUpperCase(LPCSTR pValue) {
// Restricted only to [a-z] ASCII.
LPCSTR pCursor = pValue;
while (*pCursor != '\0') {
if ('a' <= *pCursor && *pCursor <= 'z') {
break;
}
++pCursor;
}
if (*pCursor == '\0')
return pValue;
std::unique_ptr<char[]> pUpperStr = std::make_unique<char[]>(strlen(pValue) + 1);
char *pWrite = pUpperStr.get();
pCursor = pValue;
for (;;) {
*pWrite = *pCursor;
if ('a' <= *pWrite && *pWrite <= 'z') {
*pWrite += ('A' - 'a');
}
if (*pWrite == '\0') break;
++pWrite;
++pCursor;
}
m_UpperCaseNames.push_back(std::move(pUpperStr));
return m_UpperCaseNames.back().get();
}
HRESULT DxilShaderReflection::Load(IDxcBlob *pBlob,
const DxilPartHeader *pPart) {
DXASSERT_NOMSG(pBlob != nullptr);
DXASSERT_NOMSG(pPart != nullptr);
m_pContainer = pBlob;
const char *pData = GetDxilPartData(pPart);
try {
const char *pBitcode;
uint32_t bitcodeLength;
GetDxilProgramBitcode((DxilProgramHeader *)pData, &pBitcode, &bitcodeLength);
std::unique_ptr<MemoryBuffer> pMemBuffer =
MemoryBuffer::getMemBufferCopy(StringRef(pBitcode, bitcodeLength));
#if 0 // We materialize eagerly, because we'll need to walk instructions to look for usage information.
ErrorOr<std::unique_ptr<Module>> module =
getLazyBitcodeModule(std::move(pMemBuffer), Context);
#else
ErrorOr<std::unique_ptr<Module>> module =
parseBitcodeFile(pMemBuffer->getMemBufferRef(), Context, nullptr);
#endif
if (!module) {
return E_INVALIDARG;
}
std::swap(m_pModule, module.get());
m_pDxilModule = &m_pModule->GetOrCreateDxilModule();
CreateReflectionObjects();
return S_OK;
}
CATCH_CPP_RETURN_HRESULT();
};
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetDesc(D3D12_SHADER_DESC *pDesc) {
IFR(ZeroMemoryToOut(pDesc));
const DxilModule &M = *m_pDxilModule;
const ShaderModel *pSM = M.GetShaderModel();
pDesc->Version = EncodeVersion(pSM->GetKind(), pSM->GetMajor(), pSM->GetMinor());
// Unset: LPCSTR Creator; // Creator string
// Unset: UINT Flags; // Shader compilation/parse flags
pDesc->ConstantBuffers = m_CBs.size();
pDesc->BoundResources = m_Resources.size();
pDesc->InputParameters = m_InputSignature.size();
pDesc->OutputParameters = m_OutputSignature.size();
pDesc->PatchConstantParameters = m_PatchConstantSignature.size();
// Unset: UINT InstructionCount; // Number of emitted instructions
// Unset: UINT TempRegisterCount; // Number of temporary registers used
// Unset: UINT TempArrayCount; // Number of temporary arrays used
// Unset: UINT DefCount; // Number of constant defines
// Unset: UINT DclCount; // Number of declarations (input + output)
// Unset: UINT TextureNormalInstructions; // Number of non-categorized texture instructions
// Unset: UINT TextureLoadInstructions; // Number of texture load instructions
// Unset: UINT TextureCompInstructions; // Number of texture comparison instructions
// Unset: UINT TextureBiasInstructions; // Number of texture bias instructions
// Unset: UINT TextureGradientInstructions; // Number of texture gradient instructions
// Unset: UINT FloatInstructionCount; // Number of floating point arithmetic instructions used
// Unset: UINT IntInstructionCount; // Number of signed integer arithmetic instructions used
// Unset: UINT UintInstructionCount; // Number of unsigned integer arithmetic instructions used
// Unset: UINT StaticFlowControlCount; // Number of static flow control instructions used
// Unset: UINT DynamicFlowControlCount; // Number of dynamic flow control instructions used
// Unset: UINT MacroInstructionCount; // Number of macro instructions used
// Unset: UINT ArrayInstructionCount; // Number of array instructions used
// Unset: UINT CutInstructionCount; // Number of cut instructions used
// Unset: UINT EmitInstructionCount; // Number of emit instructions used
// Unset: D3D_PRIMITIVE_TOPOLOGY GSOutputTopology; // Geometry shader output topology
// Unset: UINT GSMaxOutputVertexCount; // Geometry shader maximum output vertex count
// Unset: D3D_PRIMITIVE InputPrimitive; // GS/HS input primitive
// Unset: UINT cGSInstanceCount; // Number of Geometry shader instances
// Unset: UINT cControlPoints; // Number of control points in the HS->DS stage
// Unset: D3D_TESSELLATOR_OUTPUT_PRIMITIVE HSOutputPrimitive; // Primitive output by the tessellator
// Unset: D3D_TESSELLATOR_PARTITIONING HSPartitioning; // Partitioning mode of the tessellator
// Unset: D3D_TESSELLATOR_DOMAIN TessellatorDomain; // Domain of the tessellator (quad, tri, isoline)
// instruction counts
// Unset: UINT cBarrierInstructions; // Number of barrier instructions in a compute shader
// Unset: UINT cInterlockedInstructions; // Number of interlocked instructions
// Unset: UINT cTextureStoreInstructions; // Number of texture writes
return S_OK;
}
static bool GetUnsignedVal(Value *V, uint32_t *pValue) {
ConstantInt *CI = dyn_cast<ConstantInt>(V);
if (!CI) return false;
uint64_t u = CI->getZExtValue();
if (u > UINT32_MAX) return false;
*pValue = (uint32_t)u;
return true;
}
void DxilShaderReflection::MarkUsedSignatureElements() {
Function *F = m_pDxilModule->GetEntryFunction();
DXASSERT(F != nullptr, "else module load should have failed");
// For every loadInput/storeOutput, update the corresponding ReadWriteMask.
// F is a pointer to a Function instance
unsigned elementCount = m_InputSignature.size() + m_OutputSignature.size() +
m_PatchConstantSignature.size();
unsigned markedElementCount = 0;
for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I) {
DxilInst_LoadInput LI(&*I);
DxilInst_StoreOutput SO(&*I);
DxilInst_LoadPatchConstant LPC(&*I);
DxilInst_StorePatchConstant SPC(&*I);
std::vector<D3D12_SIGNATURE_PARAMETER_DESC> *pDescs;
const DxilSignature *pSig;
uint32_t col, row, sigId;
if (LI) {
if (!GetUnsignedVal(LI.get_inputSigId(), &sigId)) continue;
if (!GetUnsignedVal(LI.get_colIndex(), &col)) continue;
if (!GetUnsignedVal(LI.get_rowIndex(), &row)) continue;
pDescs = &m_InputSignature;
pSig = &m_pDxilModule->GetInputSignature();
}
else if (SO) {
if (!GetUnsignedVal(SO.get_outputtSigId(), &sigId)) continue;
if (!GetUnsignedVal(SO.get_colIndex(), &col)) continue;
if (!GetUnsignedVal(SO.get_rowIndex(), &row)) continue;
pDescs = &m_OutputSignature;
pSig = &m_pDxilModule->GetOutputSignature();
}
else if (SPC) {
if (!GetUnsignedVal(SPC.get_outputSigID(), &sigId)) continue;
if (!GetUnsignedVal(SPC.get_col(), &col)) continue;
if (!GetUnsignedVal(SPC.get_row(), &row)) continue;
pDescs = &m_PatchConstantSignature;
pSig = &m_pDxilModule->GetPatchConstantSignature();
}
else if (LPC) {
if (!GetUnsignedVal(LPC.get_inputSigId(), &sigId)) continue;
if (!GetUnsignedVal(LPC.get_col(), &col)) continue;
if (!GetUnsignedVal(LPC.get_row(), &row)) continue;
pDescs = &m_PatchConstantSignature;
pSig = &m_pDxilModule->GetPatchConstantSignature();
}
else {
continue;
}
if (sigId >= pDescs->size()) continue;
D3D12_SIGNATURE_PARAMETER_DESC *pDesc = &(*pDescs)[sigId];
// Consider being more fine-grained about masks.
// We report sometimes-read on input as always-read.
unsigned UsedMask = pSig->IsInput() ? pDesc->Mask : NegMask(pDesc->Mask);
if (pDesc->ReadWriteMask == UsedMask)
continue;
pDesc->ReadWriteMask = UsedMask;
++markedElementCount;
if (markedElementCount == elementCount)
return;
}
}
_Use_decl_annotations_
ID3D12ShaderReflectionConstantBuffer* DxilShaderReflection::GetConstantBufferByIndex(UINT Index) {
if (Index >= m_CBs.size()) {
return &g_InvalidSRConstantBuffer;
}
return &m_CBs[Index];
}
_Use_decl_annotations_
ID3D12ShaderReflectionConstantBuffer* DxilShaderReflection::GetConstantBufferByName(LPCSTR Name) {
if (!Name) {
return &g_InvalidSRConstantBuffer;
}
for (UINT index = 0; index < m_CBs.size(); ++index) {
if (0 == strcmp(m_CBs[index].GetName(), Name)) {
return &m_CBs[index];
}
}
return &g_InvalidSRConstantBuffer;
}
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetResourceBindingDesc(UINT ResourceIndex,
_Out_ D3D12_SHADER_INPUT_BIND_DESC *pDesc) {
IFRBOOL(pDesc != nullptr, E_INVALIDARG);
IFRBOOL(ResourceIndex < m_Resources.size(), E_INVALIDARG);
if (m_PublicAPI != PublicAPI::D3D12) {
memcpy(pDesc, &m_Resources[ResourceIndex], sizeof(D3D11_SHADER_INPUT_BIND_DESC));
}
else {
*pDesc = m_Resources[ResourceIndex];
}
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetInputParameterDesc(UINT ParameterIndex,
_Out_ D3D12_SIGNATURE_PARAMETER_DESC *pDesc) {
IFRBOOL(pDesc != nullptr, E_INVALIDARG);
IFRBOOL(ParameterIndex < m_InputSignature.size(), E_INVALIDARG);
if (m_PublicAPI != PublicAPI::D3D11_43)
*pDesc = m_InputSignature[ParameterIndex];
else
memcpy(pDesc, &m_InputSignature[ParameterIndex],
// D3D11_43 does not have MinPrecison.
sizeof(D3D12_SIGNATURE_PARAMETER_DESC) - sizeof(D3D_MIN_PRECISION));
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetOutputParameterDesc(UINT ParameterIndex,
D3D12_SIGNATURE_PARAMETER_DESC *pDesc) {
IFRBOOL(pDesc != nullptr, E_INVALIDARG);
IFRBOOL(ParameterIndex < m_OutputSignature.size(), E_INVALIDARG);
if (m_PublicAPI != PublicAPI::D3D11_43)
*pDesc = m_OutputSignature[ParameterIndex];
else
memcpy(pDesc, &m_OutputSignature[ParameterIndex],
// D3D11_43 does not have MinPrecison.
sizeof(D3D12_SIGNATURE_PARAMETER_DESC) - sizeof(D3D_MIN_PRECISION));
return S_OK;
}
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetPatchConstantParameterDesc(UINT ParameterIndex,
D3D12_SIGNATURE_PARAMETER_DESC *pDesc) {
IFRBOOL(pDesc != nullptr, E_INVALIDARG);
IFRBOOL(ParameterIndex < m_PatchConstantSignature.size(), E_INVALIDARG);
if (m_PublicAPI != PublicAPI::D3D11_43)
*pDesc = m_PatchConstantSignature[ParameterIndex];
else
memcpy(pDesc, &m_PatchConstantSignature[ParameterIndex],
// D3D11_43 does not have MinPrecison.
sizeof(D3D12_SIGNATURE_PARAMETER_DESC) - sizeof(D3D_MIN_PRECISION));
return S_OK;
}
_Use_decl_annotations_
ID3D12ShaderReflectionVariable* DxilShaderReflection::GetVariableByName(LPCSTR Name) {
if (Name != nullptr) {
// Iterate through all cbuffers to find the variable.
for (UINT i = 0; i < m_CBs.size(); i++) {
ID3D12ShaderReflectionVariable *pVar = m_CBs[i].GetVariableByName(Name);
if (pVar != &g_InvalidSRVariable) {
return pVar;
}
}
}
return &g_InvalidSRVariable;
}
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetResourceBindingDescByName(LPCSTR Name,
D3D12_SHADER_INPUT_BIND_DESC *pDesc) {
IFRBOOL(Name != nullptr, E_INVALIDARG);
IFR(ZeroMemoryToOut(pDesc));
for (UINT i = 0; i < m_Resources.size(); i++) {
if (strcmp(m_Resources[i].Name, Name) == 0) {
if (m_PublicAPI != PublicAPI::D3D12) {
memcpy(pDesc, &m_Resources[i], sizeof(D3D11_SHADER_INPUT_BIND_DESC));
}
else {
*pDesc = m_Resources[i];
}
return S_OK;
}
}
return HRESULT_FROM_WIN32(ERROR_NOT_FOUND);
}
UINT DxilShaderReflection::GetMovInstructionCount() { return 0; }
UINT DxilShaderReflection::GetMovcInstructionCount() { return 0; }
UINT DxilShaderReflection::GetConversionInstructionCount() { return 0; }
UINT DxilShaderReflection::GetBitwiseInstructionCount() { return 0; }
D3D_PRIMITIVE DxilShaderReflection::GetGSInputPrimitive() {
return (D3D_PRIMITIVE)m_pDxilModule->GetInputPrimitive();
}
BOOL DxilShaderReflection::IsSampleFrequencyShader() {
// TODO: determine correct value
return FALSE;
}
UINT DxilShaderReflection::GetNumInterfaceSlots() { return 0; }
_Use_decl_annotations_
HRESULT DxilShaderReflection::GetMinFeatureLevel(enum D3D_FEATURE_LEVEL* pLevel) {
IFR(AssignToOut(D3D_FEATURE_LEVEL_12_0, pLevel));
return S_OK;
}
_Use_decl_annotations_
UINT DxilShaderReflection::GetThreadGroupSize(UINT *pSizeX, UINT *pSizeY, UINT *pSizeZ) {
UINT *pNumThreads = m_pDxilModule->m_NumThreads;
AssignToOutOpt(pNumThreads[0], pSizeX);
AssignToOutOpt(pNumThreads[1], pSizeY);
AssignToOutOpt(pNumThreads[2], pSizeZ);
return pNumThreads[0] * pNumThreads[1] * pNumThreads[2];
}
UINT64 DxilShaderReflection::GetRequiresFlags() {
UINT64 result = 0;
uint64_t features = m_pDxilModule->m_ShaderFlags.GetFeatureInfo();
if (features & ShaderFeatureInfo_Doubles) result |= D3D_SHADER_REQUIRES_DOUBLES;
if (features & ShaderFeatureInfo_UAVsAtEveryStage) result |= D3D_SHADER_REQUIRES_UAVS_AT_EVERY_STAGE;
if (features & ShaderFeatureInfo_64UAVs) result |= D3D_SHADER_REQUIRES_64_UAVS;
if (features & ShaderFeatureInfo_MininumPrecision) result |= D3D_SHADER_REQUIRES_MINIMUM_PRECISION;
if (features & ShaderFeatureInfo_11_1_DoubleExtensions) result |= D3D_SHADER_REQUIRES_11_1_DOUBLE_EXTENSIONS;
if (features & ShaderFeatureInfo_11_1_ShaderExtensions) result |= D3D_SHADER_REQUIRES_11_1_SHADER_EXTENSIONS;
if (features & ShaderFeatureInfo_LEVEL9ComparisonFiltering) result |= D3D_SHADER_REQUIRES_LEVEL_9_COMPARISON_FILTERING;
if (features & ShaderFeatureInfo_TiledResources) result |= D3D_SHADER_REQUIRES_TILED_RESOURCES;
if (features & ShaderFeatureInfo_StencilRef) result |= D3D_SHADER_REQUIRES_STENCIL_REF;
if (features & ShaderFeatureInfo_InnerCoverage) result |= D3D_SHADER_REQUIRES_INNER_COVERAGE;
if (features & ShaderFeatureInfo_TypedUAVLoadAdditionalFormats) result |= D3D_SHADER_REQUIRES_TYPED_UAV_LOAD_ADDITIONAL_FORMATS;
if (features & ShaderFeatureInfo_ROVs) result |= D3D_SHADER_REQUIRES_ROVS;
if (features & ShaderFeatureInfo_ViewportAndRTArrayIndexFromAnyShaderFeedingRasterizer) result |= D3D_SHADER_REQUIRES_VIEWPORT_AND_RT_ARRAY_INDEX_FROM_ANY_SHADER_FEEDING_RASTERIZER;
return result;
}
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