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Reflection: Implement the std140 block offset calculation rules.

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@24027 e7fa87d3-cd2b-0410-9028-fcbf551c1848
This commit is contained in:
John Kessenich 2013-11-13 05:40:44 +00:00
parent c043498b02
commit 568bc3ae55
5 changed files with 228 additions and 37 deletions
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23
glslang/Include/Types.h
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@ -490,6 +490,8 @@ typedef std::map<TTypeList*, TTypeList*>::const_iterator TStructureMapIterator;
class TType {
public:
POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
// for "empty" type (no args) or simple scalar/vector/matrix
explicit TType(TBasicType t = EbtVoid, TStorageQualifier q = EvqTemporary, int vs = 1, int mc = 0, int mr = 0) :
basicType(t), vectorSize(vs), matrixCols(mc), matrixRows(mr), arraySizes(0),
structure(0), structureSize(0), fieldName(0), typeName(0)
@ -498,6 +500,7 @@ public:
qualifier.clear();
qualifier.storage = q;
}
// for explicit precision qualifier
TType(TBasicType t, TStorageQualifier q, TPrecisionQualifier p, int vs = 1, int mc = 0, int mr = 0) :
basicType(t), vectorSize(vs), matrixCols(mc), matrixRows(mr), arraySizes(0),
structure(0), structureSize(0), fieldName(0), typeName(0)
@ -508,7 +511,8 @@ public:
qualifier.precision = p;
assert(p >= 0 && p <= EpqHigh);
}
explicit TType(const TPublicType &p) :
// for turning a TPublicType into a TType
explicit TType(const TPublicType& p) :
basicType(p.basicType), vectorSize(p.vectorSize), matrixCols(p.matrixCols), matrixRows(p.matrixRows), arraySizes(p.arraySizes),
structure(0), structureSize(0), fieldName(0), typeName(0)
{
@ -522,6 +526,23 @@ public:
typeName = NewPoolTString(p.userDef->getTypeName().c_str());
}
}
// to efficiently make a dereferenced type
// without ever duplicating the outer structure that will be thrown away
// and using only shallow copy
TType(const TType& type, int derefIndex)
{
if (! type.isArray() && (type.basicType == EbtStruct || type.basicType == EbtBlock)) {
// do a structure dereference
const TTypeList& memberList = *type.getStruct();
shallowCopy(*memberList[derefIndex].type);
return;
} else {
// do an array/vector/matrix dereference
shallowCopy(type);
dereference();
}
}
// for making structures, ...
TType(TTypeList* userDef, const TString& n) :
basicType(EbtStruct), vectorSize(1), matrixCols(0), matrixRows(0),
arraySizes(0), structure(userDef), fieldName(0)