summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/angle/src/compiler/translator/Types.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/3rdparty/angle/src/compiler/translator/Types.h')
-rw-r--r--src/3rdparty/angle/src/compiler/translator/Types.h307
1 files changed, 307 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/compiler/translator/Types.h b/src/3rdparty/angle/src/compiler/translator/Types.h
new file mode 100644
index 0000000000..119f4f29e5
--- /dev/null
+++ b/src/3rdparty/angle/src/compiler/translator/Types.h
@@ -0,0 +1,307 @@
+//
+// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+#ifndef _TYPES_INCLUDED
+#define _TYPES_INCLUDED
+
+#include "common/angleutils.h"
+
+#include "compiler/translator/BaseTypes.h"
+#include "compiler/translator/Common.h"
+#include "compiler/translator/compilerdebug.h"
+
+struct TPublicType;
+class TType;
+
+class TField
+{
+public:
+ POOL_ALLOCATOR_NEW_DELETE();
+ TField(TType* type, TString* name) : mType(type), mName(name) {}
+
+ // TODO(alokp): We should only return const type.
+ // Fix it by tweaking grammar.
+ TType* type() { return mType; }
+ const TType* type() const { return mType; }
+
+ const TString& name() const { return *mName; }
+
+private:
+ DISALLOW_COPY_AND_ASSIGN(TField);
+ TType* mType;
+ TString* mName;
+};
+
+typedef TVector<TField*> TFieldList;
+inline TFieldList* NewPoolTFieldList()
+{
+ void* memory = GetGlobalPoolAllocator()->allocate(sizeof(TFieldList));
+ return new(memory) TFieldList;
+}
+
+class TStructure
+{
+public:
+ POOL_ALLOCATOR_NEW_DELETE();
+ TStructure(TString* name, TFieldList* fields)
+ : mName(name),
+ mFields(fields),
+ mObjectSize(0),
+ mDeepestNesting(0) {
+ }
+
+ const TString& name() const { return *mName; }
+ const TFieldList& fields() const { return *mFields; }
+
+ const TString& mangledName() const {
+ if (mMangledName.empty())
+ mMangledName = buildMangledName();
+ return mMangledName;
+ }
+ size_t objectSize() const {
+ if (mObjectSize == 0)
+ mObjectSize = calculateObjectSize();
+ return mObjectSize;
+ };
+ int deepestNesting() const {
+ if (mDeepestNesting == 0)
+ mDeepestNesting = calculateDeepestNesting();
+ return mDeepestNesting;
+ }
+ bool containsArrays() const;
+
+private:
+ DISALLOW_COPY_AND_ASSIGN(TStructure);
+ TString buildMangledName() const;
+ size_t calculateObjectSize() const;
+ int calculateDeepestNesting() const;
+
+ TString* mName;
+ TFieldList* mFields;
+
+ mutable TString mMangledName;
+ mutable size_t mObjectSize;
+ mutable int mDeepestNesting;
+};
+
+//
+// Base class for things that have a type.
+//
+class TType
+{
+public:
+ POOL_ALLOCATOR_NEW_DELETE();
+ TType() {}
+ TType(TBasicType t, TPrecision p, TQualifier q = EvqTemporary, unsigned char s = 1, bool m = false, bool a = false) :
+ type(t), precision(p), qualifier(q), size(s), matrix(m), array(a), arraySize(0), structure(0)
+ {
+ }
+ explicit TType(const TPublicType &p);
+ TType(TStructure* userDef, TPrecision p = EbpUndefined) :
+ type(EbtStruct), precision(p), qualifier(EvqTemporary), size(1), matrix(false), array(false), arraySize(0), structure(userDef)
+ {
+ }
+
+ TBasicType getBasicType() const { return type; }
+ void setBasicType(TBasicType t) { type = t; }
+
+ TPrecision getPrecision() const { return precision; }
+ void setPrecision(TPrecision p) { precision = p; }
+
+ TQualifier getQualifier() const { return qualifier; }
+ void setQualifier(TQualifier q) { qualifier = q; }
+
+ // One-dimensional size of single instance type
+ int getNominalSize() const { return size; }
+ void setNominalSize(unsigned char s) { size = s; }
+ // Full size of single instance of type
+ size_t getObjectSize() const;
+
+ int elementRegisterCount() const
+ {
+ if (structure)
+ {
+ const TFieldList &fields = getStruct()->fields();
+ int registerCount = 0;
+
+ for (size_t i = 0; i < fields.size(); i++)
+ {
+ registerCount += fields[i]->type()->totalRegisterCount();
+ }
+
+ return registerCount;
+ }
+ else if (isMatrix())
+ {
+ return getNominalSize();
+ }
+ else
+ {
+ return 1;
+ }
+ }
+
+ int totalRegisterCount() const
+ {
+ if (array)
+ {
+ return arraySize * elementRegisterCount();
+ }
+ else
+ {
+ return elementRegisterCount();
+ }
+ }
+
+ bool isMatrix() const { return matrix ? true : false; }
+ void setMatrix(bool m) { matrix = m; }
+
+ bool isArray() const { return array ? true : false; }
+ int getArraySize() const { return arraySize; }
+ void setArraySize(int s) { array = true; arraySize = s; }
+ void clearArrayness() { array = false; arraySize = 0; }
+
+ bool isVector() const { return size > 1 && !matrix; }
+ bool isScalar() const { return size == 1 && !matrix && !structure; }
+
+ TStructure* getStruct() const { return structure; }
+ void setStruct(TStructure* s) { structure = s; }
+
+ const TString& getMangledName() const {
+ if (mangled.empty()) {
+ mangled = buildMangledName();
+ mangled += ';';
+ }
+ return mangled;
+ }
+
+ bool sameElementType(const TType& right) const {
+ return type == right.type &&
+ size == right.size &&
+ matrix == right.matrix &&
+ structure == right.structure;
+ }
+ bool operator==(const TType& right) const {
+ return type == right.type &&
+ size == right.size &&
+ matrix == right.matrix &&
+ array == right.array && (!array || arraySize == right.arraySize) &&
+ structure == right.structure;
+ // don't check the qualifier, it's not ever what's being sought after
+ }
+ bool operator!=(const TType& right) const {
+ return !operator==(right);
+ }
+ bool operator<(const TType& right) const {
+ if (type != right.type) return type < right.type;
+ if (size != right.size) return size < right.size;
+ if (matrix != right.matrix) return matrix < right.matrix;
+ if (array != right.array) return array < right.array;
+ if (arraySize != right.arraySize) return arraySize < right.arraySize;
+ if (structure != right.structure) return structure < right.structure;
+
+ return false;
+ }
+
+ const char* getBasicString() const { return ::getBasicString(type); }
+ const char* getPrecisionString() const { return ::getPrecisionString(precision); }
+ const char* getQualifierString() const { return ::getQualifierString(qualifier); }
+ TString getCompleteString() const;
+
+ // If this type is a struct, returns the deepest struct nesting of
+ // any field in the struct. For example:
+ // struct nesting1 {
+ // vec4 position;
+ // };
+ // struct nesting2 {
+ // nesting1 field1;
+ // vec4 field2;
+ // };
+ // For type "nesting2", this method would return 2 -- the number
+ // of structures through which indirection must occur to reach the
+ // deepest field (nesting2.field1.position).
+ int getDeepestStructNesting() const {
+ return structure ? structure->deepestNesting() : 0;
+ }
+
+ bool isStructureContainingArrays() const {
+ return structure ? structure->containsArrays() : false;
+ }
+
+private:
+ TString buildMangledName() const;
+
+ TBasicType type;
+ TPrecision precision;
+ TQualifier qualifier;
+ unsigned char size;
+ bool matrix;
+ bool array;
+ int arraySize;
+
+ TStructure* structure; // 0 unless this is a struct
+
+ mutable TString mangled;
+};
+
+//
+// This is a workaround for a problem with the yacc stack, It can't have
+// types that it thinks have non-trivial constructors. It should
+// just be used while recognizing the grammar, not anything else. Pointers
+// could be used, but also trying to avoid lots of memory management overhead.
+//
+// Not as bad as it looks, there is no actual assumption that the fields
+// match up or are name the same or anything like that.
+//
+struct TPublicType
+{
+ TBasicType type;
+ TQualifier qualifier;
+ TPrecision precision;
+ unsigned char size; // size of vector or matrix, not size of array
+ bool matrix;
+ bool array;
+ int arraySize;
+ TType* userDef;
+ TSourceLoc line;
+
+ void setBasic(TBasicType bt, TQualifier q, const TSourceLoc& ln)
+ {
+ type = bt;
+ qualifier = q;
+ precision = EbpUndefined;
+ size = 1;
+ matrix = false;
+ array = false;
+ arraySize = 0;
+ userDef = 0;
+ line = ln;
+ }
+
+ void setAggregate(unsigned char s, bool m = false)
+ {
+ size = s;
+ matrix = m;
+ }
+
+ void setArray(bool a, int s = 0)
+ {
+ array = a;
+ arraySize = s;
+ }
+
+ bool isStructureContainingArrays() const
+ {
+ if (!userDef)
+ {
+ return false;
+ }
+
+ return userDef->isStructureContainingArrays();
+ }
+};
+
+#endif // _TYPES_INCLUDED_