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HLSL: Partially flatten hierarchies, instead of all or nothing.

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Fixes #1092.  Allows arrays of opaques to keep arrayness, unless
needed by uniform array flattening.
Can handle assignments of mixed amounts of flattening.
This commit is contained in:
John Kessenich
2017-10-11 14:03:45 -06:00
parent 60e9161100
commit 41aa19953f
8 changed files with 741 additions and 163 deletions
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5
hlsl/hlslParseHelper.h
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@@ -244,15 +244,14 @@ protected:
// Array and struct flattening
TIntermTyped* flattenAccess(TIntermTyped* base, int member);
TIntermTyped* flattenAccess(int uniqueId, int member, const TType&, int subset = -1);
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&) 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);
bool isFinalFlattening(const TType& type) const { return !(type.isStruct() || type.isArray()); }
// Structure splitting (splits interstage built-in types into its own struct)
void split(const TVariable&);