mirror of
https://github.com/RPCS3/glslang.git
synced 2024-11-27 21:20:30 +00:00
b22c069f7a
Adds command line options:
--invert-y
--iy
(synonyms) which invert position.Y on vertex shader output. Handles these cases:
* Direct single variable return
* Member of direct returned struct
* Single variable output parameter
* Member of struct output parameter
API:
// Enables position.Y output negation in vertex shader
void TShader::setInvertY(bool invert);
Fixes #1173
496 lines
27 KiB
C++
Executable File
496 lines
27 KiB
C++
Executable File
//
|
|
// Copyright (C) 2016 Google, Inc.
|
|
// Copyright (C) 2016 LunarG, Inc.
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
//
|
|
// Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
//
|
|
// Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following
|
|
// disclaimer in the documentation and/or other materials provided
|
|
// with the distribution.
|
|
//
|
|
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
|
|
// contributors may be used to endorse or promote products derived
|
|
// from this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
#ifndef HLSL_PARSE_INCLUDED_
|
|
#define HLSL_PARSE_INCLUDED_
|
|
|
|
#include "../glslang/MachineIndependent/parseVersions.h"
|
|
#include "../glslang/MachineIndependent/ParseHelper.h"
|
|
|
|
#include <array>
|
|
|
|
namespace glslang {
|
|
|
|
class TAttributeMap; // forward declare
|
|
class TFunctionDeclarator;
|
|
|
|
class HlslParseContext : public TParseContextBase {
|
|
public:
|
|
HlslParseContext(TSymbolTable&, TIntermediate&, bool parsingBuiltins,
|
|
int version, EProfile, const SpvVersion& spvVersion, EShLanguage, TInfoSink&,
|
|
const TString sourceEntryPointName,
|
|
bool forwardCompatible = false, EShMessages messages = EShMsgDefault);
|
|
virtual ~HlslParseContext();
|
|
void initializeExtensionBehavior() override;
|
|
|
|
void setLimits(const TBuiltInResource&) override;
|
|
bool parseShaderStrings(TPpContext&, TInputScanner& input, bool versionWillBeError = false) override;
|
|
virtual const char* getGlobalUniformBlockName() const override { return "$Global"; }
|
|
virtual void setUniformBlockDefaults(TType& block) const override
|
|
{
|
|
block.getQualifier().layoutPacking = ElpStd140;
|
|
block.getQualifier().layoutMatrix = ElmRowMajor;
|
|
}
|
|
|
|
void reservedPpErrorCheck(const TSourceLoc&, const char* /*name*/, const char* /*op*/) override { }
|
|
bool lineContinuationCheck(const TSourceLoc&, bool /*endOfComment*/) override { return true; }
|
|
bool lineDirectiveShouldSetNextLine() const override { return true; }
|
|
bool builtInName(const TString&);
|
|
|
|
void handlePragma(const TSourceLoc&, const TVector<TString>&) override;
|
|
TIntermTyped* handleVariable(const TSourceLoc&, const TString* string);
|
|
TIntermTyped* handleBracketDereference(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
|
|
TIntermTyped* handleBracketOperator(const TSourceLoc&, TIntermTyped* base, TIntermTyped* index);
|
|
|
|
TIntermTyped* handleBinaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* left, TIntermTyped* right);
|
|
TIntermTyped* handleUnaryMath(const TSourceLoc&, const char* str, TOperator op, TIntermTyped* childNode);
|
|
TIntermTyped* handleDotDereference(const TSourceLoc&, TIntermTyped* base, const TString& field);
|
|
bool isBuiltInMethod(const TSourceLoc&, TIntermTyped* base, const TString& field);
|
|
void assignToInterface(TVariable& variable);
|
|
void handleFunctionDeclarator(const TSourceLoc&, TFunction& function, bool prototype);
|
|
TIntermAggregate* handleFunctionDefinition(const TSourceLoc&, TFunction&, const TAttributeMap&, TIntermNode*& entryPointTree);
|
|
TIntermNode* transformEntryPoint(const TSourceLoc&, TFunction&, const TAttributeMap&);
|
|
void handleEntryPointAttributes(const TSourceLoc&, const TAttributeMap&);
|
|
void transferTypeAttributes(const TAttributeMap&, TType&);
|
|
void handleFunctionBody(const TSourceLoc&, TFunction&, TIntermNode* functionBody, TIntermNode*& node);
|
|
void remapEntryPointIO(TFunction& function, TVariable*& returnValue, TVector<TVariable*>& inputs, TVector<TVariable*>& outputs);
|
|
void remapNonEntryPointIO(TFunction& function);
|
|
TIntermNode* handleReturnValue(const TSourceLoc&, TIntermTyped*);
|
|
void handleFunctionArgument(TFunction*, TIntermTyped*& arguments, TIntermTyped* newArg);
|
|
TIntermTyped* handleAssign(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
|
|
TIntermTyped* handleAssignToMatrixSwizzle(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
|
|
TIntermTyped* handleFunctionCall(const TSourceLoc&, TFunction*, TIntermTyped*);
|
|
TIntermAggregate* assignClipCullDistance(const TSourceLoc&, TOperator, int semanticId, TIntermTyped* left, TIntermTyped* right);
|
|
TIntermTyped* assignPosition(const TSourceLoc&, TOperator, TIntermTyped* left, TIntermTyped* right);
|
|
void decomposeIntrinsic(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
void decomposeSampleMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
void decomposeStructBufferMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
void decomposeGeometryMethods(const TSourceLoc&, TIntermTyped*& node, TIntermNode* arguments);
|
|
void pushFrontArguments(TIntermTyped* front, TIntermTyped*& arguments);
|
|
void addInputArgumentConversions(const TFunction&, TIntermTyped*&);
|
|
void expandArguments(const TSourceLoc&, const TFunction&, TIntermTyped*&);
|
|
TIntermTyped* addOutputArgumentConversions(const TFunction&, TIntermOperator&);
|
|
void builtInOpCheck(const TSourceLoc&, const TFunction&, TIntermOperator&);
|
|
TFunction* makeConstructorCall(const TSourceLoc&, const TType&);
|
|
void handleSemantic(TSourceLoc, TQualifier&, TBuiltInVariable, const TString& upperCase);
|
|
void handlePackOffset(const TSourceLoc&, TQualifier&, const glslang::TString& location,
|
|
const glslang::TString* component);
|
|
void handleRegister(const TSourceLoc&, TQualifier&, const glslang::TString* profile, const glslang::TString& desc,
|
|
int subComponent, const glslang::TString*);
|
|
TIntermTyped* convertConditionalExpression(const TSourceLoc&, TIntermTyped*, bool mustBeScalar = true);
|
|
TIntermAggregate* handleSamplerTextureCombine(const TSourceLoc& loc, TIntermTyped* argTex, TIntermTyped* argSampler);
|
|
|
|
bool parseMatrixSwizzleSelector(const TSourceLoc&, const TString&, int cols, int rows, TSwizzleSelectors<TMatrixSelector>&);
|
|
int getMatrixComponentsColumn(int rows, const TSwizzleSelectors<TMatrixSelector>&);
|
|
void assignError(const TSourceLoc&, const char* op, TString left, TString right);
|
|
void unaryOpError(const TSourceLoc&, const char* op, TString operand);
|
|
void binaryOpError(const TSourceLoc&, const char* op, TString left, TString right);
|
|
void variableCheck(TIntermTyped*& nodePtr);
|
|
void constantValueCheck(TIntermTyped* node, const char* token);
|
|
void integerCheck(const TIntermTyped* node, const char* token);
|
|
void globalCheck(const TSourceLoc&, const char* token);
|
|
bool constructorError(const TSourceLoc&, TIntermNode*, TFunction&, TOperator, TType&);
|
|
bool constructorTextureSamplerError(const TSourceLoc&, const TFunction&);
|
|
void arraySizeCheck(const TSourceLoc&, TIntermTyped* expr, TArraySize&);
|
|
void arraySizeRequiredCheck(const TSourceLoc&, const TArraySizes&);
|
|
void structArrayCheck(const TSourceLoc&, const TType& structure);
|
|
void arrayDimMerge(TType& type, const TArraySizes* sizes);
|
|
bool voidErrorCheck(const TSourceLoc&, const TString&, TBasicType);
|
|
void globalQualifierFix(const TSourceLoc&, TQualifier&);
|
|
bool structQualifierErrorCheck(const TSourceLoc&, const TPublicType& pType);
|
|
void mergeQualifiers(TQualifier& dst, const TQualifier& src);
|
|
int computeSamplerTypeIndex(TSampler&);
|
|
TSymbol* redeclareBuiltinVariable(const TSourceLoc&, const TString&, const TQualifier&, const TShaderQualifiers&);
|
|
void paramFix(TType& type);
|
|
void specializationCheck(const TSourceLoc&, const TType&, const char* op);
|
|
|
|
void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&);
|
|
void setLayoutQualifier(const TSourceLoc&, TQualifier&, TString&, const TIntermTyped*);
|
|
void mergeObjectLayoutQualifiers(TQualifier& dest, const TQualifier& src, bool inheritOnly);
|
|
void checkNoShaderLayouts(const TSourceLoc&, const TShaderQualifiers&);
|
|
|
|
const TFunction* findFunction(const TSourceLoc& loc, TFunction& call, bool& builtIn, int& thisDepth, TIntermTyped*& args);
|
|
void addGenMulArgumentConversion(const TSourceLoc& loc, TFunction& call, TIntermTyped*& args);
|
|
void declareTypedef(const TSourceLoc&, const TString& identifier, const TType&);
|
|
void declareStruct(const TSourceLoc&, TString& structName, TType&);
|
|
TSymbol* lookupUserType(const TString&, TType&);
|
|
TIntermNode* declareVariable(const TSourceLoc&, const TString& identifier, TType&, TIntermTyped* initializer = 0);
|
|
void lengthenList(const TSourceLoc&, TIntermSequence& list, int size, TIntermTyped* scalarInit);
|
|
TIntermTyped* handleConstructor(const TSourceLoc&, TIntermTyped*, const TType&);
|
|
TIntermTyped* addConstructor(const TSourceLoc&, TIntermTyped*, const TType&);
|
|
TIntermTyped* convertArray(TIntermTyped*, const TType&);
|
|
TIntermTyped* constructAggregate(TIntermNode*, const TType&, int, const TSourceLoc&);
|
|
TIntermTyped* constructBuiltIn(const TType&, TOperator, TIntermTyped*, const TSourceLoc&, bool subset);
|
|
void declareBlock(const TSourceLoc&, TType&, const TString* instanceName = 0, TArraySizes* arraySizes = 0);
|
|
void declareStructBufferCounter(const TSourceLoc& loc, const TType& bufferType, const TString& name);
|
|
void fixBlockLocations(const TSourceLoc&, TQualifier&, TTypeList&, bool memberWithLocation, bool memberWithoutLocation);
|
|
void fixBlockXfbOffsets(TQualifier&, TTypeList&);
|
|
void fixBlockUniformOffsets(const TQualifier&, TTypeList&);
|
|
void addQualifierToExisting(const TSourceLoc&, TQualifier, const TString& identifier);
|
|
void addQualifierToExisting(const TSourceLoc&, TQualifier, TIdentifierList&);
|
|
void updateStandaloneQualifierDefaults(const TSourceLoc&, const TPublicType&);
|
|
void wrapupSwitchSubsequence(TIntermAggregate* statements, TIntermNode* branchNode);
|
|
TIntermNode* addSwitch(const TSourceLoc&, TIntermTyped* expression, TIntermAggregate* body, TSelectionControl control);
|
|
|
|
void updateImplicitArraySize(const TSourceLoc&, TIntermNode*, int index);
|
|
|
|
void nestLooping() { ++loopNestingLevel; }
|
|
void unnestLooping() { --loopNestingLevel; }
|
|
void nestAnnotations() { ++annotationNestingLevel; }
|
|
void unnestAnnotations() { --annotationNestingLevel; }
|
|
int getAnnotationNestingLevel() { return annotationNestingLevel; }
|
|
void pushScope() { symbolTable.push(); }
|
|
void popScope() { symbolTable.pop(0); }
|
|
|
|
void pushThisScope(const TType&, const TVector<TFunctionDeclarator>&);
|
|
void popThisScope() { symbolTable.pop(0); }
|
|
|
|
void pushImplicitThis(TVariable* thisParameter) { implicitThisStack.push_back(thisParameter); }
|
|
void popImplicitThis() { implicitThisStack.pop_back(); }
|
|
TVariable* getImplicitThis(int thisDepth) const { return implicitThisStack[implicitThisStack.size() - thisDepth]; }
|
|
|
|
void pushNamespace(const TString& name);
|
|
void popNamespace();
|
|
void getFullNamespaceName(TString*&) const;
|
|
void addScopeMangler(TString&);
|
|
|
|
void pushSwitchSequence(TIntermSequence* sequence) { switchSequenceStack.push_back(sequence); }
|
|
void popSwitchSequence() { switchSequenceStack.pop_back(); }
|
|
|
|
virtual void growGlobalUniformBlock(const TSourceLoc&, TType&, const TString& memberName,
|
|
TTypeList* typeList = nullptr) override;
|
|
|
|
// Apply L-value conversions. E.g, turning a write to a RWTexture into an ImageStore.
|
|
TIntermTyped* handleLvalue(const TSourceLoc&, const char* op, TIntermTyped*& node);
|
|
bool lValueErrorCheck(const TSourceLoc&, const char* op, TIntermTyped*) override;
|
|
|
|
TLayoutFormat getLayoutFromTxType(const TSourceLoc&, const TType&);
|
|
|
|
bool handleOutputGeometry(const TSourceLoc&, const TLayoutGeometry& geometry);
|
|
bool handleInputGeometry(const TSourceLoc&, const TLayoutGeometry& geometry);
|
|
|
|
// Determine selection control from attributes
|
|
TSelectionControl handleSelectionControl(const TAttributeMap& attributes) const;
|
|
|
|
// Determine loop control from attributes
|
|
TLoopControl handleLoopControl(const TAttributeMap& attributes) const;
|
|
|
|
// Share struct buffer deep types
|
|
void shareStructBufferType(TType&);
|
|
|
|
// Set texture return type of the given sampler. Returns success (not all types are valid).
|
|
bool setTextureReturnType(TSampler& sampler, const TType& retType, const TSourceLoc& loc);
|
|
|
|
// Obtain the sampler return type of the given sampler in retType.
|
|
void getTextureReturnType(const TSampler& sampler, TType& retType) const;
|
|
|
|
protected:
|
|
struct TFlattenData {
|
|
TFlattenData() : nextBinding(TQualifier::layoutBindingEnd),
|
|
nextLocation(TQualifier::layoutLocationEnd) { }
|
|
TFlattenData(int nb, int nl) : nextBinding(nb), nextLocation(nl) { }
|
|
|
|
TVector<TVariable*> members; // individual flattened variables
|
|
TVector<int> offsets; // offset to next tree level
|
|
unsigned int nextBinding; // next binding to use.
|
|
unsigned int nextLocation; // next location to use
|
|
};
|
|
|
|
void fixConstInit(const TSourceLoc&, const TString& identifier, TType& type, TIntermTyped*& initializer);
|
|
void inheritGlobalDefaults(TQualifier& dst) const;
|
|
TVariable* makeInternalVariable(const char* name, const TType&) const;
|
|
TVariable* makeInternalVariable(const TString& name, const TType& type) const {
|
|
return makeInternalVariable(name.c_str(), type);
|
|
}
|
|
TIntermSymbol* makeInternalVariableNode(const TSourceLoc&, const char* name, const TType&) const;
|
|
TVariable* declareNonArray(const TSourceLoc&, const TString& identifier, const TType&, bool track);
|
|
void declareArray(const TSourceLoc&, const TString& identifier, const TType&, TSymbol*&, bool track);
|
|
TIntermNode* executeInitializer(const TSourceLoc&, TIntermTyped* initializer, TVariable* variable);
|
|
TIntermTyped* convertInitializerList(const TSourceLoc&, const TType&, TIntermTyped* initializer, TIntermTyped* scalarInit);
|
|
bool isScalarConstructor(const TIntermNode*);
|
|
TOperator mapAtomicOp(const TSourceLoc& loc, TOperator op, bool isImage);
|
|
|
|
// Return true if this node requires L-value conversion (e.g, to an imageStore).
|
|
bool shouldConvertLValue(const TIntermNode*) const;
|
|
|
|
// Array and struct flattening
|
|
TIntermTyped* flattenAccess(TIntermTyped* base, int member);
|
|
TIntermTyped* flattenAccess(int uniqueId, int member, TStorageQualifier outerStorage, const TType&, int subset = -1);
|
|
int findSubtreeOffset(const TIntermNode&) const;
|
|
int findSubtreeOffset(const TType&, int subset, const TVector<int>& offsets) const;
|
|
bool shouldFlatten(const TType&, TStorageQualifier, bool topLevel) const;
|
|
bool wasFlattened(const TIntermTyped* node) const;
|
|
bool wasFlattened(int id) const { return flattenMap.find(id) != flattenMap.end(); }
|
|
int addFlattenedMember(const TVariable&, const TType&, TFlattenData&, const TString& name, bool linkage,
|
|
const TQualifier& outerQualifier, const TArraySizes* builtInArraySizes);
|
|
|
|
// Structure splitting (splits interstage built-in types into its own struct)
|
|
void split(const TVariable&);
|
|
void splitBuiltIn(const TString& baseName, const TType& memberType, const TArraySizes*, const TQualifier&);
|
|
const TType& split(const TType& type, const TString& name, const TQualifier&);
|
|
bool wasSplit(const TIntermTyped* node) const;
|
|
bool wasSplit(int id) const { return splitNonIoVars.find(id) != splitNonIoVars.end(); }
|
|
TVariable* getSplitNonIoVar(int id) const;
|
|
void addPatchConstantInvocation();
|
|
void fixTextureShadowModes();
|
|
TIntermTyped* makeIntegerIndex(TIntermTyped*);
|
|
|
|
void fixBuiltInIoType(TType&);
|
|
|
|
void flatten(const TVariable& variable, bool linkage);
|
|
int flatten(const TVariable& variable, const TType&, TFlattenData&, TString name, bool linkage,
|
|
const TQualifier& outerQualifier, const TArraySizes* builtInArraySizes);
|
|
int flattenStruct(const TVariable& variable, const TType&, TFlattenData&, TString name, bool linkage,
|
|
const TQualifier& outerQualifier, const TArraySizes* builtInArraySizes);
|
|
int flattenArray(const TVariable& variable, const TType&, TFlattenData&, TString name, bool linkage,
|
|
const TQualifier& outerQualifier);
|
|
|
|
bool hasUniform(const TQualifier& qualifier) const;
|
|
void clearUniform(TQualifier& qualifier);
|
|
bool isInputBuiltIn(const TQualifier& qualifier) const;
|
|
bool hasInput(const TQualifier& qualifier) const;
|
|
void correctOutput(TQualifier& qualifier);
|
|
bool isOutputBuiltIn(const TQualifier& qualifier) const;
|
|
bool hasOutput(const TQualifier& qualifier) const;
|
|
void correctInput(TQualifier& qualifier);
|
|
void correctUniform(TQualifier& qualifier);
|
|
void clearUniformInputOutput(TQualifier& qualifier);
|
|
|
|
// Test method names
|
|
bool isStructBufferMethod(const TString& name) const;
|
|
void counterBufferType(const TSourceLoc& loc, TType& type);
|
|
|
|
// Return standard sample position array
|
|
TIntermConstantUnion* getSamplePosArray(int count);
|
|
|
|
TType* getStructBufferContentType(const TType& type) const;
|
|
bool isStructBufferType(const TType& type) const { return getStructBufferContentType(type) != nullptr; }
|
|
TIntermTyped* indexStructBufferContent(const TSourceLoc& loc, TIntermTyped* buffer) const;
|
|
TIntermTyped* getStructBufferCounter(const TSourceLoc& loc, TIntermTyped* buffer);
|
|
TString getStructBuffCounterName(const TString&) const;
|
|
void addStructBuffArguments(const TSourceLoc& loc, TIntermAggregate*&);
|
|
void addStructBufferHiddenCounterParam(const TSourceLoc& loc, TParameter&, TIntermAggregate*&);
|
|
|
|
// Return true if this type is a reference. This is not currently a type method in case that's
|
|
// a language specific answer.
|
|
bool isReference(const TType& type) const { return isStructBufferType(type); }
|
|
|
|
// Return true if this a buffer type that has an associated counter buffer.
|
|
bool hasStructBuffCounter(const TType&) const;
|
|
|
|
// Finalization step: remove unused buffer blocks from linkage (we don't know until the
|
|
// shader is entirely compiled)
|
|
void removeUnusedStructBufferCounters();
|
|
|
|
static bool isClipOrCullDistance(TBuiltInVariable);
|
|
static bool isClipOrCullDistance(const TQualifier& qual) { return isClipOrCullDistance(qual.builtIn); }
|
|
static bool isClipOrCullDistance(const TType& type) { return isClipOrCullDistance(type.getQualifier()); }
|
|
|
|
// Find the patch constant function (issues error, returns nullptr if not found)
|
|
const TFunction* findPatchConstantFunction(const TSourceLoc& loc);
|
|
|
|
// Pass through to base class after remembering built-in mappings.
|
|
using TParseContextBase::trackLinkage;
|
|
void trackLinkage(TSymbol& variable) override;
|
|
|
|
void finish() override; // post-processing
|
|
|
|
// Linkage symbol helpers
|
|
TIntermSymbol* findTessLinkageSymbol(TBuiltInVariable biType) const;
|
|
|
|
// Current state of parsing
|
|
int annotationNestingLevel; // 0 if outside all annotations
|
|
|
|
HlslParseContext(HlslParseContext&);
|
|
HlslParseContext& operator=(HlslParseContext&);
|
|
|
|
static const int maxSamplerIndex = EsdNumDims * (EbtNumTypes * (2 * 2 * 2)); // see computeSamplerTypeIndex()
|
|
TQualifier globalBufferDefaults;
|
|
TQualifier globalUniformDefaults;
|
|
TQualifier globalInputDefaults;
|
|
TQualifier globalOutputDefaults;
|
|
TString currentCaller; // name of last function body entered (not valid when at global scope)
|
|
TIdSetType inductiveLoopIds;
|
|
TVector<TIntermTyped*> needsIndexLimitationChecking;
|
|
|
|
//
|
|
// Geometry shader input arrays:
|
|
// - array sizing is based on input primitive and/or explicit size
|
|
//
|
|
// Tessellation control output arrays:
|
|
// - array sizing is based on output layout(vertices=...) and/or explicit size
|
|
//
|
|
// Both:
|
|
// - array sizing is retroactive
|
|
// - built-in block redeclarations interact with this
|
|
//
|
|
// Design:
|
|
// - use a per-context "resize-list", a list of symbols whose array sizes
|
|
// can be fixed
|
|
//
|
|
// - the resize-list starts empty at beginning of user-shader compilation, it does
|
|
// not have built-ins in it
|
|
//
|
|
// - on built-in array use: copyUp() symbol and add it to the resize-list
|
|
//
|
|
// - on user array declaration: add it to the resize-list
|
|
//
|
|
// - on block redeclaration: copyUp() symbol and add it to the resize-list
|
|
// * note, that appropriately gives an error if redeclaring a block that
|
|
// was already used and hence already copied-up
|
|
//
|
|
// - on seeing a layout declaration that sizes the array, fix everything in the
|
|
// resize-list, giving errors for mismatch
|
|
//
|
|
// - on seeing an array size declaration, give errors on mismatch between it and previous
|
|
// array-sizing declarations
|
|
//
|
|
TVector<TSymbol*> ioArraySymbolResizeList;
|
|
|
|
TMap<int, TFlattenData> flattenMap;
|
|
|
|
// IO-type map. Maps a pure symbol-table form of a structure-member list into
|
|
// each of the (up to) three kinds of IO, as each as different allowed decorations,
|
|
// but HLSL allows mixing all in the same structure.
|
|
struct tIoKinds {
|
|
TTypeList* input;
|
|
TTypeList* output;
|
|
TTypeList* uniform;
|
|
};
|
|
TMap<const TTypeList*, tIoKinds> ioTypeMap;
|
|
|
|
// Structure splitting data:
|
|
TMap<int, TVariable*> splitNonIoVars; // variables with the built-in interstage IO removed, indexed by unique ID.
|
|
|
|
// Structuredbuffer shared types. Typically there are only a few.
|
|
TVector<TType*> structBufferTypes;
|
|
|
|
// This tracks texture sample user structure return types. Only a limited number are supported, as
|
|
// may fit in TSampler::structReturnIndex.
|
|
TVector<TTypeList*> textureReturnStruct;
|
|
|
|
TMap<TString, bool> structBufferCounter;
|
|
|
|
// The built-in interstage IO map considers e.g, EvqPosition on input and output separately, so that we
|
|
// can build the linkage correctly if position appears on both sides. Otherwise, multiple positions
|
|
// are considered identical.
|
|
struct tInterstageIoData {
|
|
tInterstageIoData(TBuiltInVariable bi, TStorageQualifier q) :
|
|
builtIn(bi), storage(q) { }
|
|
|
|
TBuiltInVariable builtIn;
|
|
TStorageQualifier storage;
|
|
|
|
// ordering for maps
|
|
bool operator<(const tInterstageIoData d) const {
|
|
return (builtIn != d.builtIn) ? (builtIn < d.builtIn) : (storage < d.storage);
|
|
}
|
|
};
|
|
|
|
TMap<tInterstageIoData, TVariable*> splitBuiltIns; // split built-ins, indexed by built-in type.
|
|
TVariable* inputPatch; // input patch is special for PCF: it's the only non-builtin PCF input,
|
|
// and is handled as a pseudo-builtin.
|
|
|
|
unsigned int nextInLocation;
|
|
unsigned int nextOutLocation;
|
|
|
|
TFunction* entryPointFunction;
|
|
TIntermNode* entryPointFunctionBody;
|
|
|
|
TString patchConstantFunctionName; // hull shader patch constant function name, from function level attribute.
|
|
TMap<TBuiltInVariable, TSymbol*> builtInTessLinkageSymbols; // used for tessellation, finding declared built-ins
|
|
|
|
TVector<TString> currentTypePrefix; // current scoping prefix for nested structures
|
|
TVector<TVariable*> implicitThisStack; // currently active 'this' variables for nested structures
|
|
|
|
TVariable* gsStreamOutput; // geometry shader stream outputs, for emit (Append method)
|
|
|
|
TVariable* clipDistanceOutput; // synthesized clip distance out variable (shader might have >1)
|
|
TVariable* cullDistanceOutput; // synthesized cull distance out variable (shader might have >1)
|
|
TVariable* clipDistanceInput; // synthesized clip distance in variable (shader might have >1)
|
|
TVariable* cullDistanceInput; // synthesized cull distance in variable (shader might have >1)
|
|
|
|
static const int maxClipCullRegs = 2;
|
|
std::array<int, maxClipCullRegs> clipSemanticNSizeIn; // vector, indexed by clip semantic ID
|
|
std::array<int, maxClipCullRegs> cullSemanticNSizeIn; // vector, indexed by cull semantic ID
|
|
std::array<int, maxClipCullRegs> clipSemanticNSizeOut; // vector, indexed by clip semantic ID
|
|
std::array<int, maxClipCullRegs> cullSemanticNSizeOut; // vector, indexed by cull semantic ID
|
|
|
|
// This tracks the first (mip level) argument to the .mips[][] operator. Since this can be nested as
|
|
// in tx.mips[tx.mips[0][1].x][2], we need a stack. We also track the TSourceLoc for error reporting
|
|
// purposes.
|
|
struct tMipsOperatorData {
|
|
tMipsOperatorData(TSourceLoc l, TIntermTyped* m) : loc(l), mipLevel(m) { }
|
|
TSourceLoc loc;
|
|
TIntermTyped* mipLevel;
|
|
};
|
|
|
|
TVector<tMipsOperatorData> mipsOperatorMipArg;
|
|
|
|
// A texture object may be used with shadow and non-shadow samplers, but both may not be
|
|
// alive post-DCE in the same shader. We do not know at compilation time which are alive: that's
|
|
// only known post-DCE. If a texture is used both ways, we create two textures, and
|
|
// leave the elimiation of one to the optimizer. This maps the shader variant to
|
|
// the shadow variant.
|
|
//
|
|
// This can be removed if and when the texture shadow code in
|
|
// HlslParseContext::handleSamplerTextureCombine is removed.
|
|
struct tShadowTextureSymbols {
|
|
tShadowTextureSymbols() { symId.fill(-1); }
|
|
|
|
void set(bool shadow, int id) { symId[int(shadow)] = id; }
|
|
int get(bool shadow) const { return symId[int(shadow)]; }
|
|
|
|
// True if this texture has been seen with both shadow and non-shadow modes
|
|
bool overloaded() const { return symId[0] != -1 && symId[1] != -1; }
|
|
bool isShadowId(int id) const { return symId[1] == id; }
|
|
|
|
private:
|
|
std::array<int, 2> symId;
|
|
};
|
|
|
|
TMap<int, tShadowTextureSymbols*> textureShadowVariant;
|
|
};
|
|
|
|
// This is the prefix we use for built-in methods to avoid namespace collisions with
|
|
// global scope user functions.
|
|
// TODO: this would be better as a nonparseable character, but that would
|
|
// require changing the scanner.
|
|
#define BUILTIN_PREFIX "__BI_"
|
|
|
|
} // end namespace glslang
|
|
|
|
#endif // HLSL_PARSE_INCLUDED_
|