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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//Copyright (C) 2013 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 _CONSTANT_UNION_INCLUDED_
#define _CONSTANT_UNION_INCLUDED_
namespace glslang {
class TConstUnion {
public:
POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
TConstUnion() : iConst(0), type(EbtInt) { }
void setIConst(int i)
{
iConst = i;
type = EbtInt;
}
void setUConst(unsigned int u)
{
uConst = u;
type = EbtUint;
}
void setI64Const(long long i64)
{
i64Const = i64;
type = EbtInt64;
}
void setU64Const(unsigned long long u64)
{
u64Const = u64;
type = EbtUint64;
}
void setDConst(double d)
{
dConst = d;
type = EbtDouble;
}
void setBConst(bool b)
{
bConst = b;
type = EbtBool;
}
int getIConst() const { return iConst; }
unsigned int getUConst() const { return uConst; }
long long getI64Const() const { return i64Const; }
unsigned long long getU64Const() const { return u64Const; }
double getDConst() const { return dConst; }
bool getBConst() const { return bConst; }
bool operator==(const int i) const
{
if (i == iConst)
return true;
return false;
}
bool operator==(const unsigned int u) const
{
if (u == uConst)
return true;
return false;
}
bool operator==(const long long i64) const
{
if (i64 == i64Const)
return true;
return false;
}
bool operator==(const unsigned long long u64) const
{
if (u64 == u64Const)
return true;
return false;
}
bool operator==(const double d) const
{
if (d == dConst)
return true;
return false;
}
bool operator==(const bool b) const
{
if (b == bConst)
return true;
return false;
}
bool operator==(const TConstUnion& constant) const
{
if (constant.type != type)
return false;
switch (type) {
case EbtInt:
if (constant.iConst == iConst)
return true;
break;
case EbtUint:
if (constant.uConst == uConst)
return true;
break;
case EbtInt64:
if (constant.i64Const == i64Const)
return true;
break;
case EbtUint64:
if (constant.u64Const == u64Const)
return true;
break;
case EbtDouble:
if (constant.dConst == dConst)
return true;
break;
case EbtBool:
if (constant.bConst == bConst)
return true;
break;
default:
assert(false && "Default missing");
}
return false;
}
bool operator!=(const int i) const
{
return !operator==(i);
}
bool operator!=(const unsigned int u) const
{
return !operator==(u);
}
bool operator!=(const long long i) const
{
return !operator==(i);
}
bool operator!=(const unsigned long long u) const
{
return !operator==(u);
}
bool operator!=(const float f) const
{
return !operator==(f);
}
bool operator!=(const bool b) const
{
return !operator==(b);
}
bool operator!=(const TConstUnion& constant) const
{
return !operator==(constant);
}
bool operator>(const TConstUnion& constant) const
{
assert(type == constant.type);
switch (type) {
case EbtInt:
if (iConst > constant.iConst)
return true;
return false;
case EbtUint:
if (uConst > constant.uConst)
return true;
return false;
case EbtInt64:
if (i64Const > constant.i64Const)
return true;
return false;
case EbtUint64:
if (u64Const > constant.u64Const)
return true;
return false;
case EbtDouble:
if (dConst > constant.dConst)
return true;
return false;
default:
assert(false && "Default missing");
return false;
}
}
bool operator<(const TConstUnion& constant) const
{
assert(type == constant.type);
switch (type) {
case EbtInt:
if (iConst < constant.iConst)
return true;
return false;
case EbtUint:
if (uConst < constant.uConst)
return true;
return false;
case EbtInt64:
if (i64Const < constant.i64Const)
return true;
return false;
case EbtUint64:
if (u64Const < constant.u64Const)
return true;
return false;
case EbtDouble:
if (dConst < constant.dConst)
return true;
return false;
default:
assert(false && "Default missing");
return false;
}
}
TConstUnion operator+(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst + constant.iConst); break;
case EbtInt64: returnValue.setI64Const(i64Const + constant.i64Const); break;
case EbtUint: returnValue.setUConst(uConst + constant.uConst); break;
case EbtUint64: returnValue.setU64Const(u64Const + constant.u64Const); break;
case EbtDouble: returnValue.setDConst(dConst + constant.dConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator-(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst - constant.iConst); break;
case EbtInt64: returnValue.setI64Const(i64Const - constant.i64Const); break;
case EbtUint: returnValue.setUConst(uConst - constant.uConst); break;
case EbtUint64: returnValue.setU64Const(u64Const - constant.u64Const); break;
case EbtDouble: returnValue.setDConst(dConst - constant.dConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator*(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst * constant.iConst); break;
case EbtInt64: returnValue.setI64Const(i64Const * constant.i64Const); break;
case EbtUint: returnValue.setUConst(uConst * constant.uConst); break;
case EbtUint64: returnValue.setU64Const(u64Const * constant.u64Const); break;
case EbtDouble: returnValue.setDConst(dConst * constant.dConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator%(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst % constant.iConst); break;
case EbtInt64: returnValue.setI64Const(i64Const % constant.i64Const); break;
case EbtUint: returnValue.setUConst(uConst % constant.uConst); break;
case EbtUint64: returnValue.setU64Const(u64Const % constant.u64Const); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator>>(const TConstUnion& constant) const
{
TConstUnion returnValue;
switch (type) {
case EbtInt:
switch (constant.type) {
case EbtInt: returnValue.setIConst(iConst >> constant.iConst); break;
case EbtUint: returnValue.setIConst(iConst >> constant.uConst); break;
case EbtInt64: returnValue.setIConst(iConst >> constant.i64Const); break;
case EbtUint64: returnValue.setIConst(iConst >> constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
case EbtUint:
switch (constant.type) {
case EbtInt: returnValue.setUConst(uConst >> constant.iConst); break;
case EbtUint: returnValue.setUConst(uConst >> constant.uConst); break;
case EbtInt64: returnValue.setUConst(uConst >> constant.i64Const); break;
case EbtUint64: returnValue.setUConst(uConst >> constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
case EbtInt64:
switch (constant.type) {
case EbtInt: returnValue.setI64Const(i64Const >> constant.iConst); break;
case EbtUint: returnValue.setI64Const(i64Const >> constant.uConst); break;
case EbtInt64: returnValue.setI64Const(i64Const >> constant.i64Const); break;
case EbtUint64: returnValue.setI64Const(i64Const >> constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
case EbtUint64:
switch (constant.type) {
case EbtInt: returnValue.setU64Const(u64Const >> constant.iConst); break;
case EbtUint: returnValue.setU64Const(u64Const >> constant.uConst); break;
case EbtInt64: returnValue.setU64Const(u64Const >> constant.i64Const); break;
case EbtUint64: returnValue.setU64Const(u64Const >> constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator<<(const TConstUnion& constant) const
{
TConstUnion returnValue;
switch (type) {
case EbtInt:
switch (constant.type) {
case EbtInt: returnValue.setIConst(iConst << constant.iConst); break;
case EbtUint: returnValue.setIConst(iConst << constant.uConst); break;
case EbtInt64: returnValue.setIConst(iConst << constant.i64Const); break;
case EbtUint64: returnValue.setIConst(iConst << constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
case EbtUint:
switch (constant.type) {
case EbtInt: returnValue.setUConst(uConst << constant.iConst); break;
case EbtUint: returnValue.setUConst(uConst << constant.uConst); break;
case EbtInt64: returnValue.setUConst(uConst << constant.i64Const); break;
case EbtUint64: returnValue.setUConst(uConst << constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
case EbtInt64:
switch (constant.type) {
case EbtInt: returnValue.setI64Const(i64Const << constant.iConst); break;
case EbtUint: returnValue.setI64Const(i64Const << constant.uConst); break;
case EbtInt64: returnValue.setI64Const(i64Const << constant.i64Const); break;
case EbtUint64: returnValue.setI64Const(i64Const << constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
case EbtUint64:
switch (constant.type) {
case EbtInt: returnValue.setU64Const(u64Const << constant.iConst); break;
case EbtUint: returnValue.setU64Const(u64Const << constant.uConst); break;
case EbtInt64: returnValue.setU64Const(u64Const << constant.i64Const); break;
case EbtUint64: returnValue.setU64Const(u64Const << constant.u64Const); break;
default: assert(false && "Default missing");
}
break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator&(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst & constant.iConst); break;
case EbtUint: returnValue.setUConst(uConst & constant.uConst); break;
case EbtInt64: returnValue.setI64Const(i64Const & constant.i64Const); break;
case EbtUint64: returnValue.setU64Const(u64Const & constant.u64Const); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator|(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst | constant.iConst); break;
case EbtUint: returnValue.setUConst(uConst | constant.uConst); break;
case EbtInt64: returnValue.setI64Const(i64Const | constant.i64Const); break;
case EbtUint64: returnValue.setU64Const(u64Const | constant.u64Const); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator^(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst ^ constant.iConst); break;
case EbtUint: returnValue.setUConst(uConst ^ constant.uConst); break;
case EbtInt64: returnValue.setI64Const(i64Const ^ constant.i64Const); break;
case EbtUint64: returnValue.setU64Const(u64Const ^ constant.u64Const); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator~() const
{
TConstUnion returnValue;
switch (type) {
case EbtInt: returnValue.setIConst(~iConst); break;
case EbtUint: returnValue.setUConst(~uConst); break;
case EbtInt64: returnValue.setI64Const(~i64Const); break;
case EbtUint64: returnValue.setU64Const(~u64Const); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator&&(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtBool: returnValue.setBConst(bConst && constant.bConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TConstUnion operator||(const TConstUnion& constant) const
{
TConstUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtBool: returnValue.setBConst(bConst || constant.bConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TBasicType getType() const { return type; }
private:
union {
int iConst; // used for ivec, scalar ints
unsigned int uConst; // used for uvec, scalar uints
long long i64Const; // used for i64vec, scalar int64s
unsigned long long u64Const; // used for u64vec, scalar uint64s
bool bConst; // used for bvec, scalar bools
double dConst; // used for vec, dvec, mat, dmat, scalar floats and doubles
};
TBasicType type;
};
// Encapsulate having a pointer to an array of TConstUnion,
// which only needs to be allocated if it's size is going to be
// bigger than 0.
//
// One convenience is being able to use [] to go inside the array, instead
// of C++ assuming it as an array of pointers to vectors.
//
// General usage is that the size is known up front, and it is
// created once with the proper size.
//
class TConstUnionArray {
public:
POOL_ALLOCATOR_NEW_DELETE(GetThreadPoolAllocator())
TConstUnionArray() : unionArray(nullptr) { }
virtual ~TConstUnionArray() { }
explicit TConstUnionArray(int size)
{
if (size == 0)
unionArray = nullptr;
else
unionArray = new TConstUnionVector(size);
}
TConstUnionArray(const TConstUnionArray& a) : unionArray(a.unionArray) { }
TConstUnionArray(const TConstUnionArray& a, int start, int size)
{
unionArray = new TConstUnionVector(size);
for (int i = 0; i < size; ++i)
(*unionArray)[i] = a[start + i];
}
// Use this constructor for a smear operation
TConstUnionArray(int size, const TConstUnion& val)
{
unionArray = new TConstUnionVector(size, val);
}
int size() const { return unionArray ? (int)unionArray->size() : 0; }
TConstUnion& operator[](size_t index) { return (*unionArray)[index]; }
const TConstUnion& operator[](size_t index) const { return (*unionArray)[index]; }
bool operator==(const TConstUnionArray& rhs) const
{
// this includes the case that both are unallocated
if (unionArray == rhs.unionArray)
return true;
if (! unionArray || ! rhs.unionArray)
return false;
if (! unionArray || ! rhs.unionArray)
return false;
return *unionArray == *rhs.unionArray;
}
bool operator!=(const TConstUnionArray& rhs) const { return ! operator==(rhs); }
double dot(const TConstUnionArray& rhs)
{
assert(rhs.unionArray->size() == unionArray->size());
double sum = 0.0;
for (size_t comp = 0; comp < unionArray->size(); ++comp)
sum += (*this)[comp].getDConst() * rhs[comp].getDConst();
return sum;
}
bool empty() const { return unionArray == nullptr; }
protected:
typedef TVector<TConstUnion> TConstUnionVector;
TConstUnionVector* unionArray;
};
} // end namespace glslang
#endif // _CONSTANT_UNION_INCLUDED_
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