diff options
Diffstat (limited to 'src/3rdparty/glslang/glslang/MachineIndependent/iomapper.h')
| -rw-r--r-- | src/3rdparty/glslang/glslang/MachineIndependent/iomapper.h | 242 |
1 files changed, 239 insertions, 3 deletions
diff --git a/src/3rdparty/glslang/glslang/MachineIndependent/iomapper.h b/src/3rdparty/glslang/glslang/MachineIndependent/iomapper.h index 5e0d439..684e88d 100644 --- a/src/3rdparty/glslang/glslang/MachineIndependent/iomapper.h +++ b/src/3rdparty/glslang/glslang/MachineIndependent/iomapper.h @@ -33,11 +33,15 @@ // POSSIBILITY OF SUCH DAMAGE. // +#ifndef GLSLANG_WEB + #ifndef _IOMAPPER_INCLUDED #define _IOMAPPER_INCLUDED -#include "../Public/ShaderLang.h" - +#include <cstdint> +#include "LiveTraverser.h" +#include <unordered_map> +#include <unordered_set> // // A reflection database and its interface, consistent with the OpenGL API reflection queries. // @@ -47,17 +51,249 @@ class TInfoSink; namespace glslang { class TIntermediate; +struct TVarEntryInfo { + int id; + TIntermSymbol* symbol; + bool live; + int newBinding; + int newSet; + int newLocation; + int newComponent; + int newIndex; + EShLanguage stage; + struct TOrderById { + inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) { return l.id < r.id; } + }; + + struct TOrderByPriority { + // ordering: + // 1) has both binding and set + // 2) has binding but no set + // 3) has no binding but set + // 4) has no binding and no set + inline bool operator()(const TVarEntryInfo& l, const TVarEntryInfo& r) { + const TQualifier& lq = l.symbol->getQualifier(); + const TQualifier& rq = r.symbol->getQualifier(); + + // simple rules: + // has binding gives 2 points + // has set gives 1 point + // who has the most points is more important. + int lPoints = (lq.hasBinding() ? 2 : 0) + (lq.hasSet() ? 1 : 0); + int rPoints = (rq.hasBinding() ? 2 : 0) + (rq.hasSet() ? 1 : 0); + + if (lPoints == rPoints) + return l.id < r.id; + return lPoints > rPoints; + } + }; +}; + +// Base class for shared TIoMapResolver services, used by several derivations. +struct TDefaultIoResolverBase : public glslang::TIoMapResolver { +public: + TDefaultIoResolverBase(const TIntermediate& intermediate); + typedef std::vector<int> TSlotSet; + typedef std::unordered_map<int, TSlotSet> TSlotSetMap; + + // grow the reflection stage by stage + void notifyBinding(EShLanguage, TVarEntryInfo& /*ent*/) override {} + void notifyInOut(EShLanguage, TVarEntryInfo& /*ent*/) override {} + void beginNotifications(EShLanguage) override {} + void endNotifications(EShLanguage) override {} + void beginResolve(EShLanguage) override {} + void endResolve(EShLanguage) override {} + void beginCollect(EShLanguage) override {} + void endCollect(EShLanguage) override {} + void reserverResourceSlot(TVarEntryInfo& /*ent*/, TInfoSink& /*infoSink*/) override {} + void reserverStorageSlot(TVarEntryInfo& /*ent*/, TInfoSink& /*infoSink*/) override {} + int getBaseBinding(TResourceType res, unsigned int set) const; + const std::vector<std::string>& getResourceSetBinding() const; + virtual TResourceType getResourceType(const glslang::TType& type) = 0; + bool doAutoBindingMapping() const; + bool doAutoLocationMapping() const; + TSlotSet::iterator findSlot(int set, int slot); + bool checkEmpty(int set, int slot); + bool validateInOut(EShLanguage /*stage*/, TVarEntryInfo& /*ent*/) override { return true; } + int reserveSlot(int set, int slot, int size = 1); + int getFreeSlot(int set, int base, int size = 1); + int resolveSet(EShLanguage /*stage*/, TVarEntryInfo& ent) override; + int resolveUniformLocation(EShLanguage /*stage*/, TVarEntryInfo& ent) override; + int resolveInOutLocation(EShLanguage stage, TVarEntryInfo& ent) override; + int resolveInOutComponent(EShLanguage /*stage*/, TVarEntryInfo& ent) override; + int resolveInOutIndex(EShLanguage /*stage*/, TVarEntryInfo& ent) override; + void addStage(EShLanguage stage) override { + if (stage < EShLangCount) + stageMask[stage] = true; + } + uint32_t computeTypeLocationSize(const TType& type, EShLanguage stage); + + TSlotSetMap slots; + +protected: + TDefaultIoResolverBase(TDefaultIoResolverBase&); + TDefaultIoResolverBase& operator=(TDefaultIoResolverBase&); + const TIntermediate& intermediate; + int nextUniformLocation; + int nextInputLocation; + int nextOutputLocation; + bool stageMask[EShLangCount + 1]; + // Return descriptor set specific base if there is one, and the generic base otherwise. + int selectBaseBinding(int base, int descriptorSetBase) const { + return descriptorSetBase != -1 ? descriptorSetBase : base; + } + + static int getLayoutSet(const glslang::TType& type) { + if (type.getQualifier().hasSet()) + return type.getQualifier().layoutSet; + else + return 0; + } + + static bool isSamplerType(const glslang::TType& type) { + return type.getBasicType() == glslang::EbtSampler && type.getSampler().isPureSampler(); + } + + static bool isTextureType(const glslang::TType& type) { + return (type.getBasicType() == glslang::EbtSampler && + (type.getSampler().isTexture() || type.getSampler().isSubpass())); + } + + static bool isUboType(const glslang::TType& type) { + return type.getQualifier().storage == EvqUniform; + } + + static bool isImageType(const glslang::TType& type) { + return type.getBasicType() == glslang::EbtSampler && type.getSampler().isImage(); + } + + static bool isSsboType(const glslang::TType& type) { + return type.getQualifier().storage == EvqBuffer; + } + + // Return true if this is a SRV (shader resource view) type: + static bool isSrvType(const glslang::TType& type) { + return isTextureType(type) || type.getQualifier().storage == EvqBuffer; + } + + // Return true if this is a UAV (unordered access view) type: + static bool isUavType(const glslang::TType& type) { + if (type.getQualifier().isReadOnly()) + return false; + return (type.getBasicType() == glslang::EbtSampler && type.getSampler().isImage()) || + (type.getQualifier().storage == EvqBuffer); + } +}; + +// Defaulf I/O resolver for OpenGL +struct TDefaultGlslIoResolver : public TDefaultIoResolverBase { +public: + typedef std::map<TString, int> TVarSlotMap; // <resourceName, location/binding> + typedef std::map<int, TVarSlotMap> TSlotMap; // <resourceKey, TVarSlotMap> + TDefaultGlslIoResolver(const TIntermediate& intermediate); + bool validateBinding(EShLanguage /*stage*/, TVarEntryInfo& /*ent*/) override { return true; } + TResourceType getResourceType(const glslang::TType& type) override; + int resolveInOutLocation(EShLanguage stage, TVarEntryInfo& ent) override; + int resolveUniformLocation(EShLanguage /*stage*/, TVarEntryInfo& ent) override; + int resolveBinding(EShLanguage /*stage*/, TVarEntryInfo& ent) override; + void beginResolve(EShLanguage /*stage*/) override; + void endResolve(EShLanguage stage) override; + void beginCollect(EShLanguage) override; + void endCollect(EShLanguage) override; + void reserverStorageSlot(TVarEntryInfo& ent, TInfoSink& infoSink) override; + void reserverResourceSlot(TVarEntryInfo& ent, TInfoSink& infoSink) override; + // in/out symbol and uniform symbol are stored in the same resourceSlotMap, the storage key is used to identify each type of symbol. + // We use stage and storage qualifier to construct a storage key. it can help us identify the same storage resource used in different stage. + // if a resource is a program resource and we don't need know it usage stage, we can use same stage to build storage key. + // Note: both stage and type must less then 0xffff. + int buildStorageKey(EShLanguage stage, TStorageQualifier type) { + assert(static_cast<uint32_t>(stage) <= 0x0000ffff && static_cast<uint32_t>(type) <= 0x0000ffff); + return (stage << 16) | type; + } + +protected: + // Use for mark pre stage, to get more interface symbol information. + EShLanguage preStage; + // Use for mark current shader stage for resolver + EShLanguage currentStage; + // Slot map for storage resource(location of uniform and interface symbol) It's a program share slot + TSlotMap resourceSlotMap; + // Slot map for other resource(image, ubo, ssbo), It's a program share slot. + TSlotMap storageSlotMap; +}; + +typedef std::map<TString, TVarEntryInfo> TVarLiveMap; + +// override function "operator=", if a vector<const _Kty, _Ty> being sort, +// when use vc++, the sort function will call : +// pair& operator=(const pair<_Other1, _Other2>& _Right) +// { +// first = _Right.first; +// second = _Right.second; +// return (*this); +// } +// that will make a const type handing on left. +// override this function can avoid a compiler error. +// In the future, if the vc++ compiler can handle such a situation, +// this part of the code will be removed. +struct TVarLivePair : std::pair<const TString, TVarEntryInfo> { + TVarLivePair(std::pair<const TString, TVarEntryInfo>& _Right) : pair(_Right.first, _Right.second) {} + TVarLivePair& operator=(const TVarLivePair& _Right) { + const_cast<TString&>(first) = _Right.first; + second = _Right.second; + return (*this); + } +}; +typedef std::vector<TVarLivePair> TVarLiveVector; // I/O mapper class TIoMapper { public: TIoMapper() {} virtual ~TIoMapper() {} + // grow the reflection stage by stage + bool virtual addStage(EShLanguage, TIntermediate&, TInfoSink&, TIoMapResolver*); + bool virtual doMap(TIoMapResolver*, TInfoSink&) { return true; } +}; +// I/O mapper for OpenGL +class TGlslIoMapper : public TIoMapper { +public: + TGlslIoMapper() { + memset(inVarMaps, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1)); + memset(outVarMaps, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1)); + memset(uniformVarMap, 0, sizeof(TVarLiveMap*) * (EShLangCount + 1)); + memset(intermediates, 0, sizeof(TIntermediate*) * (EShLangCount + 1)); + } + virtual ~TGlslIoMapper() { + for (size_t stage = 0; stage < EShLangCount; stage++) { + if (inVarMaps[stage] != nullptr) { + delete inVarMaps[stage]; + inVarMaps[stage] = nullptr; + } + if (outVarMaps[stage] != nullptr) { + delete outVarMaps[stage]; + outVarMaps[stage] = nullptr; + } + if (uniformVarMap[stage] != nullptr) { + delete uniformVarMap[stage]; + uniformVarMap[stage] = nullptr; + } + if (intermediates[stage] != nullptr) + intermediates[stage] = nullptr; + } + } // grow the reflection stage by stage - bool addStage(EShLanguage, TIntermediate&, TInfoSink&, TIoMapResolver*); + bool addStage(EShLanguage, TIntermediate&, TInfoSink&, TIoMapResolver*) override; + bool doMap(TIoMapResolver*, TInfoSink&) override; + TVarLiveMap *inVarMaps[EShLangCount], *outVarMaps[EShLangCount], + *uniformVarMap[EShLangCount]; + TIntermediate* intermediates[EShLangCount]; + bool hadError = false; }; } // end namespace glslang #endif // _IOMAPPER_INCLUDED + +#endif // GLSLANG_WEB |