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types.cpp
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/*
** types.cpp
** Implements the VM type hierarchy
**
**---------------------------------------------------------------------------
** Copyright 2008-2016 Randy Heit
** Copyright 2016-2017 Cheistoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. 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.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
**---------------------------------------------------------------------------
**
*/
#include "vmintern.h"
#include "s_sound.h"
#include "dthinker.h"
#include "types.h"
FTypeTable TypeTable;
PErrorType *TypeError;
PErrorType *TypeAuto;
PVoidType *TypeVoid;
PInt *TypeSInt8, *TypeUInt8;
PInt *TypeSInt16, *TypeUInt16;
PInt *TypeSInt32, *TypeUInt32;
PBool *TypeBool;
PFloat *TypeFloat32, *TypeFloat64;
PString *TypeString;
PName *TypeName;
PSound *TypeSound;
PColor *TypeColor;
PTextureID *TypeTextureID;
PSpriteID *TypeSpriteID;
PStatePointer *TypeState;
PPointer *TypeFont;
PStateLabel *TypeStateLabel;
PStruct *TypeVector2;
PStruct *TypeVector3;
PStruct *TypeColorStruct;
PStruct *TypeStringStruct;
PPointer *TypeNullPtr;
PPointer *TypeVoidPtr;
// CODE --------------------------------------------------------------------
void DumpTypeTable()
{
int used = 0;
int min = INT_MAX;
int max = 0;
int all = 0;
int lens[10] = {0};
for (size_t i = 0; i < countof(TypeTable.TypeHash); ++i)
{
int len = 0;
Printf("%4zu:", i);
for (PType *ty = TypeTable.TypeHash[i]; ty != nullptr; ty = ty->HashNext)
{
Printf(" -> %s", ty->DescriptiveName());
len++;
all++;
}
if (len != 0)
{
used++;
if (len < min)
min = len;
if (len > max)
max = len;
}
if (len < (int)countof(lens))
{
lens[len]++;
}
Printf("\n");
}
Printf("Used buckets: %d/%lu (%.2f%%) for %d entries\n", used, countof(TypeTable.TypeHash), double(used)/countof(TypeTable.TypeHash)*100, all);
Printf("Min bucket size: %d\n", min);
Printf("Max bucket size: %d\n", max);
Printf("Avg bucket size: %.2f\n", double(all) / used);
int j,k;
for (k = countof(lens)-1; k > 0; --k)
if (lens[k])
break;
for (j = 0; j <= k; ++j)
Printf("Buckets of len %d: %d (%.2f%%)\n", j, lens[j], j!=0?double(lens[j])/used*100:-1.0);
}
/* PType ******************************************************************/
//==========================================================================
//
// PType Parameterized Constructor
//
//==========================================================================
PType::PType(unsigned int size, unsigned int align)
: Size(size), Align(align), HashNext(nullptr)
{
mDescriptiveName = "Type";
loadOp = OP_NOP;
storeOp = OP_NOP;
moveOp = OP_NOP;
RegType = REGT_NIL;
RegCount = 1;
}
//==========================================================================
//
// PType Destructor
//
//==========================================================================
PType::~PType()
{
}
//==========================================================================
//
// PType :: WriteValue
//
//==========================================================================
void PType::WriteValue(FSerializer &ar, const char *key,const void *addr) const
{
assert(0 && "Cannot write value for this type");
}
//==========================================================================
//
// PType :: ReadValue
//
//==========================================================================
bool PType::ReadValue(FSerializer &ar, const char *key, void *addr) const
{
assert(0 && "Cannot read value for this type");
return false;
}
//==========================================================================
//
// PType :: SetDefaultValue
//
//==========================================================================
void PType::SetDefaultValue(void *base, unsigned offset, TArray<FTypeAndOffset> *stroffs)
{
}
//==========================================================================
//
// PType :: SetDefaultValue
//
//==========================================================================
void PType::SetPointer(void *base, unsigned offset, TArray<size_t> *stroffs)
{
}
void PType::SetPointerArray(void *base, unsigned offset, TArray<size_t> *stroffs)
{
}
//==========================================================================
//
// PType :: InitializeValue
//
//==========================================================================
void PType::InitializeValue(void *addr, const void *def) const
{
}
//==========================================================================
//
// PType :: DestroyValue
//
//==========================================================================
void PType::DestroyValue(void *addr) const
{
}
//==========================================================================
//
// PType :: SetValue
//
//==========================================================================
void PType::SetValue(void *addr, int val)
{
assert(0 && "Cannot set int value for this type");
}
void PType::SetValue(void *addr, double val)
{
assert(0 && "Cannot set float value for this type");
}
//==========================================================================
//
// PType :: GetValue
//
//==========================================================================
int PType::GetValueInt(void *addr) const
{
assert(0 && "Cannot get value for this type");
return 0;
}
double PType::GetValueFloat(void *addr) const
{
assert(0 && "Cannot get value for this type");
return 0;
}
//==========================================================================
//
// PType :: IsMatch
//
//==========================================================================
bool PType::IsMatch(intptr_t id1, intptr_t id2) const
{
return false;
}
//==========================================================================
//
// PType :: GetTypeIDs
//
//==========================================================================
void PType::GetTypeIDs(intptr_t &id1, intptr_t &id2) const
{
id1 = 0;
id2 = 0;
}
//==========================================================================
//
// PType :: GetTypeIDs
//
//==========================================================================
const char *PType::DescriptiveName() const
{
return mDescriptiveName.GetChars();
}
//==========================================================================
//
// PType :: StaticInit STATIC
//
//==========================================================================
void PType::StaticInit()
{
// Create types and add them type the type table.
TypeTable.AddType(TypeError = new PErrorType, NAME_None);
TypeTable.AddType(TypeAuto = new PErrorType(2), NAME_None);
TypeTable.AddType(TypeVoid = new PVoidType, NAME_Void);
TypeTable.AddType(TypeSInt8 = new PInt(1, false), NAME_Int);
TypeTable.AddType(TypeUInt8 = new PInt(1, true), NAME_Int);
TypeTable.AddType(TypeSInt16 = new PInt(2, false), NAME_Int);
TypeTable.AddType(TypeUInt16 = new PInt(2, true), NAME_Int);
TypeTable.AddType(TypeSInt32 = new PInt(4, false), NAME_Int);
TypeTable.AddType(TypeUInt32 = new PInt(4, true), NAME_Int);
TypeTable.AddType(TypeBool = new PBool, NAME_Bool);
TypeTable.AddType(TypeFloat32 = new PFloat(4), NAME_Float);
TypeTable.AddType(TypeFloat64 = new PFloat(8), NAME_Float);
TypeTable.AddType(TypeString = new PString, NAME_String);
TypeTable.AddType(TypeName = new PName, NAME_Name);
TypeTable.AddType(TypeSound = new PSound, NAME_Sound);
TypeTable.AddType(TypeColor = new PColor, NAME_Color);
TypeTable.AddType(TypeState = new PStatePointer, NAME_Pointer);
TypeTable.AddType(TypeStateLabel = new PStateLabel, NAME_Label);
TypeTable.AddType(TypeNullPtr = new PPointer, NAME_Pointer);
TypeTable.AddType(TypeSpriteID = new PSpriteID, NAME_SpriteID);
TypeTable.AddType(TypeTextureID = new PTextureID, NAME_TextureID);
TypeVoidPtr = NewPointer(TypeVoid, false);
TypeColorStruct = NewStruct("@ColorStruct", nullptr); //This name is intentionally obfuscated so that it cannot be used explicitly. The point of this type is to gain access to the single channels of a color value.
TypeStringStruct = NewStruct("Stringstruct", nullptr, true);
TypeFont = NewPointer(NewStruct("Font", nullptr, true));
#ifdef __BIG_ENDIAN__
TypeColorStruct->AddField(NAME_a, TypeUInt8);
TypeColorStruct->AddField(NAME_r, TypeUInt8);
TypeColorStruct->AddField(NAME_g, TypeUInt8);
TypeColorStruct->AddField(NAME_b, TypeUInt8);
#else
TypeColorStruct->AddField(NAME_b, TypeUInt8);
TypeColorStruct->AddField(NAME_g, TypeUInt8);
TypeColorStruct->AddField(NAME_r, TypeUInt8);
TypeColorStruct->AddField(NAME_a, TypeUInt8);
#endif
TypeVector2 = new PStruct(NAME_Vector2, nullptr);
TypeVector2->AddField(NAME_X, TypeFloat64);
TypeVector2->AddField(NAME_Y, TypeFloat64);
TypeTable.AddType(TypeVector2, NAME_Struct);
TypeVector2->loadOp = OP_LV2;
TypeVector2->storeOp = OP_SV2;
TypeVector2->moveOp = OP_MOVEV2;
TypeVector2->RegType = REGT_FLOAT;
TypeVector2->RegCount = 2;
TypeVector3 = new PStruct(NAME_Vector3, nullptr);
TypeVector3->AddField(NAME_X, TypeFloat64);
TypeVector3->AddField(NAME_Y, TypeFloat64);
TypeVector3->AddField(NAME_Z, TypeFloat64);
// allow accessing xy as a vector2. This is not supposed to be serialized so it's marked transient
TypeVector3->Symbols.AddSymbol(Create<PField>(NAME_XY, TypeVector2, VARF_Transient, 0));
TypeTable.AddType(TypeVector3, NAME_Struct);
TypeVector3->loadOp = OP_LV3;
TypeVector3->storeOp = OP_SV3;
TypeVector3->moveOp = OP_MOVEV3;
TypeVector3->RegType = REGT_FLOAT;
TypeVector3->RegCount = 3;
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_sByte, TypeSInt8));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Byte, TypeUInt8));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Short, TypeSInt16));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_uShort, TypeUInt16));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Int, TypeSInt32));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_uInt, TypeUInt32));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Bool, TypeBool));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Float, TypeFloat64));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Double, TypeFloat64));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Float32, TypeFloat32));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Float64, TypeFloat64));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_String, TypeString));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Name, TypeName));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Sound, TypeSound));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Color, TypeColor));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_State, TypeState));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Vector2, TypeVector2));
Namespaces.GlobalNamespace->Symbols.AddSymbol(Create<PSymbolType>(NAME_Vector3, TypeVector3));
}
/* PBasicType *************************************************************/
//==========================================================================
//
// PBasicType Parameterized Constructor
//
//==========================================================================
PBasicType::PBasicType(unsigned int size, unsigned int align)
: PType(size, align)
{
mDescriptiveName = "BasicType";
Flags |= TYPE_Scalar;
}
/* PCompoundType **********************************************************/
//==========================================================================
//
// PBasicType Parameterized Constructor
//
//==========================================================================
PCompoundType::PCompoundType(unsigned int size, unsigned int align)
: PType(size, align)
{
mDescriptiveName = "CompoundType";
}
/* PContainerType *************************************************************/
//==========================================================================
//
// PContainerType :: IsMatch
//
//==========================================================================
bool PContainerType::IsMatch(intptr_t id1, intptr_t id2) const
{
const PTypeBase *outer = (const PTypeBase *)id1;
FName name = (ENamedName)(intptr_t)id2;
return Outer == outer && TypeName == name;
}
//==========================================================================
//
// PContainerType :: GetTypeIDs
//
//==========================================================================
void PContainerType::GetTypeIDs(intptr_t &id1, intptr_t &id2) const
{
id1 = (intptr_t)Outer;
id2 = TypeName;
}
/* PInt *******************************************************************/
//==========================================================================
//
// PInt Parameterized Constructor
//
//==========================================================================
PInt::PInt(unsigned int size, bool unsign, bool compatible)
: PBasicType(size, size), Unsigned(unsign), IntCompatible(compatible)
{
mDescriptiveName.Format("%cInt%d", unsign? 'U':'S', size);
Flags |= TYPE_Int;
MemberOnly = (size < 4);
if (!unsign)
{
int maxval = (1u << ((8 * size) - 1)) - 1; // compute as unsigned to prevent overflow before -1
int minval = -maxval - 1;
Symbols.AddSymbol(Create<PSymbolConstNumeric>(NAME_Min, this, minval));
Symbols.AddSymbol(Create<PSymbolConstNumeric>(NAME_Max, this, maxval));
}
else
{
Symbols.AddSymbol(Create<PSymbolConstNumeric>(NAME_Min, this, 0u));
Symbols.AddSymbol(Create<PSymbolConstNumeric>(NAME_Max, this, (1u << ((8 * size) - 1))));
}
SetOps();
}
void PInt::SetOps()
{
moveOp = OP_MOVE;
RegType = REGT_INT;
if (Size == 4)
{
storeOp = OP_SW;
loadOp = OP_LW;
}
else if (Size == 1)
{
storeOp = OP_SB;
loadOp = Unsigned ? OP_LBU : OP_LB;
}
else if (Size == 2)
{
storeOp = OP_SH;
loadOp = Unsigned ? OP_LHU : OP_LH;
}
else
{
assert(0 && "Unhandled integer size");
storeOp = OP_NOP;
}
}
//==========================================================================
//
// PInt :: WriteValue
//
//==========================================================================
void PInt::WriteValue(FSerializer &ar, const char *key,const void *addr) const
{
if (Size == 8 && Unsigned)
{
// this is a special case that cannot be represented by an int64_t.
uint64_t val = *(uint64_t*)addr;
ar(key, val);
}
else
{
int64_t val;
switch (Size)
{
case 1:
val = Unsigned ? *(uint8_t*)addr : *(int8_t*)addr;
break;
case 2:
val = Unsigned ? *(uint16_t*)addr : *(int16_t*)addr;
break;
case 4:
val = Unsigned ? *(uint32_t*)addr : *(int32_t*)addr;
break;
case 8:
val = *(int64_t*)addr;
break;
default:
return; // something invalid
}
ar(key, val);
}
}
//==========================================================================
//
// PInt :: ReadValue
//
//==========================================================================
bool PInt::ReadValue(FSerializer &ar, const char *key, void *addr) const
{
NumericValue val;
ar(key, val);
if (val.type == NumericValue::NM_invalid) return false; // not found or usable
if (val.type == NumericValue::NM_float) val.signedval = (int64_t)val.floatval;
// No need to check the unsigned state here. Downcasting to smaller types will yield the same result for both.
switch (Size)
{
case 1:
*(uint8_t*)addr = (uint8_t)val.signedval;
break;
case 2:
*(uint16_t*)addr = (uint16_t)val.signedval;
break;
case 4:
*(uint32_t*)addr = (uint32_t)val.signedval;
break;
case 8:
*(uint64_t*)addr = (uint64_t)val.signedval;
break;
default:
return false; // something invalid
}
return true;
}
//==========================================================================
//
// PInt :: SetValue
//
//==========================================================================
void PInt::SetValue(void *addr, int val)
{
assert(((intptr_t)addr & (Align - 1)) == 0 && "unaligned address");
if (Size == 4)
{
*(int *)addr = val;
}
else if (Size == 1)
{
*(uint8_t *)addr = val;
}
else if (Size == 2)
{
*(uint16_t *)addr = val;
}
else if (Size == 8)
{
*(uint64_t *)addr = val;
}
else
{
assert(0 && "Unhandled integer size");
}
}
void PInt::SetValue(void *addr, double val)
{
SetValue(addr, (int)val);
}
//==========================================================================
//
// PInt :: GetValueInt
//
//==========================================================================
int PInt::GetValueInt(void *addr) const
{
assert(((intptr_t)addr & (Align - 1)) == 0 && "unaligned address");
if (Size == 4)
{
return *(int *)addr;
}
else if (Size == 1)
{
return Unsigned ? *(uint8_t *)addr : *(int8_t *)addr;
}
else if (Size == 2)
{
return Unsigned ? *(uint16_t *)addr : *(int16_t *)addr;
}
else if (Size == 8)
{ // truncated output
return (int)*(uint64_t *)addr;
}
else
{
assert(0 && "Unhandled integer size");
return 0;
}
}
//==========================================================================
//
// PInt :: GetValueFloat
//
//==========================================================================
double PInt::GetValueFloat(void *addr) const
{
return GetValueInt(addr);
}
//==========================================================================
//
// PInt :: GetStoreOp
//
//==========================================================================
/* PBool ******************************************************************/
//==========================================================================
//
// PInt :: SetValue
//
//==========================================================================
void PBool::SetValue(void *addr, int val)
{
*(bool*)addr = !!val;
}
void PBool::SetValue(void *addr, double val)
{
*(bool*)addr = val != 0.;
}
int PBool::GetValueInt(void *addr) const
{
return *(bool *)addr;
}
double PBool::GetValueFloat(void *addr) const
{
return *(bool *)addr;
}
//==========================================================================
//
// PBool Default Constructor
//
//==========================================================================
PBool::PBool()
: PInt(sizeof(bool), true)
{
mDescriptiveName = "Bool";
MemberOnly = false;
Flags |= TYPE_IntNotInt;
}
/* PFloat *****************************************************************/
//==========================================================================
//
// PFloat Parameterized Constructor
//
//==========================================================================
PFloat::PFloat(unsigned int size)
: PBasicType(size, size)
{
mDescriptiveName.Format("Float%d", size);
Flags |= TYPE_Float;
if (size == 8)
{
if (sizeof(void*) == 4)
{
// Some ABIs for 32-bit platforms define alignment of double type as 4 bytes
// Intel POSIX (System V ABI) and PowerPC Macs are examples of those
struct AlignmentCheck { uint8_t i; double d; };
Align = static_cast<unsigned int>(offsetof(AlignmentCheck, d));
}
SetDoubleSymbols();
}
else
{
assert(size == 4);
MemberOnly = true;
SetSingleSymbols();
}
SetOps();
}
//==========================================================================
//
// PFloat :: SetDoubleSymbols
//
// Setup constant values for 64-bit floats.
//
//==========================================================================
void PFloat::SetDoubleSymbols()
{
static const SymbolInitF symf[] =
{
{ NAME_Min_Normal, DBL_MIN },
{ NAME_Max, DBL_MAX },
{ NAME_Epsilon, DBL_EPSILON },
{ NAME_NaN, std::numeric_limits<double>::quiet_NaN() },
{ NAME_Infinity, std::numeric_limits<double>::infinity() },
{ NAME_Min_Denormal, std::numeric_limits<double>::denorm_min() }
};
static const SymbolInitI symi[] =
{
{ NAME_Dig, DBL_DIG },
{ NAME_Min_Exp, DBL_MIN_EXP },
{ NAME_Max_Exp, DBL_MAX_EXP },
{ NAME_Mant_Dig, DBL_MANT_DIG },
{ NAME_Min_10_Exp, DBL_MIN_10_EXP },
{ NAME_Max_10_Exp, DBL_MAX_10_EXP }
};
SetSymbols(symf, countof(symf));
SetSymbols(symi, countof(symi));
}
//==========================================================================
//
// PFloat :: SetSingleSymbols
//
// Setup constant values for 32-bit floats.
//
//==========================================================================
void PFloat::SetSingleSymbols()
{
static const SymbolInitF symf[] =
{
{ NAME_Min_Normal, FLT_MIN },
{ NAME_Max, FLT_MAX },
{ NAME_Epsilon, FLT_EPSILON },
{ NAME_NaN, std::numeric_limits<float>::quiet_NaN() },
{ NAME_Infinity, std::numeric_limits<float>::infinity() },
{ NAME_Min_Denormal, std::numeric_limits<float>::denorm_min() }
};
static const SymbolInitI symi[] =
{
{ NAME_Dig, FLT_DIG },
{ NAME_Min_Exp, FLT_MIN_EXP },
{ NAME_Max_Exp, FLT_MAX_EXP },
{ NAME_Mant_Dig, FLT_MANT_DIG },
{ NAME_Min_10_Exp, FLT_MIN_10_EXP },
{ NAME_Max_10_Exp, FLT_MAX_10_EXP }
};
SetSymbols(symf, countof(symf));
SetSymbols(symi, countof(symi));
}
//==========================================================================
//
// PFloat :: SetSymbols
//
//==========================================================================
void PFloat::SetSymbols(const PFloat::SymbolInitF *sym, size_t count)
{
for (size_t i = 0; i < count; ++i)
{
Symbols.AddSymbol(Create<PSymbolConstNumeric>(sym[i].Name, this, sym[i].Value));
}
}
void PFloat::SetSymbols(const PFloat::SymbolInitI *sym, size_t count)
{
for (size_t i = 0; i < count; ++i)
{
Symbols.AddSymbol(Create<PSymbolConstNumeric>(sym[i].Name, this, sym[i].Value));
}
}
//==========================================================================
//
// PFloat :: WriteValue
//
//==========================================================================
void PFloat::WriteValue(FSerializer &ar, const char *key,const void *addr) const
{
if (Size == 8)
{
ar(key, *(double*)addr);
}
else
{
ar(key, *(float*)addr);
}
}
//==========================================================================
//
// PFloat :: ReadValue
//
//==========================================================================
bool PFloat::ReadValue(FSerializer &ar, const char *key, void *addr) const
{
NumericValue val;
ar(key, val);
if (val.type == NumericValue::NM_invalid) return false; // not found or usable
else if (val.type == NumericValue::NM_signed) val.floatval = (double)val.signedval;
else if (val.type == NumericValue::NM_unsigned) val.floatval = (double)val.unsignedval;
if (Size == 8)
{
*(double*)addr = val.floatval;
}
else
{
*(float*)addr = (float)val.floatval;
}
return true;
}
//==========================================================================
//
// PFloat :: SetValue
//
//==========================================================================
void PFloat::SetValue(void *addr, int val)
{
return SetValue(addr, (double)val);
}
void PFloat::SetValue(void *addr, double val)
{
assert(((intptr_t)addr & (Align - 1)) == 0 && "unaligned address");
if (Size == 4)
{
*(float *)addr = (float)val;
}
else
{
assert(Size == 8);
*(double *)addr = val;
}
}
//==========================================================================
//
// PFloat :: GetValueInt
//
//==========================================================================
int PFloat::GetValueInt(void *addr) const
{
return xs_ToInt(GetValueFloat(addr));
}
//==========================================================================
//
// PFloat :: GetValueFloat
//
//==========================================================================
double PFloat::GetValueFloat(void *addr) const
{
assert(((intptr_t)addr & (Align - 1)) == 0 && "unaligned address");
if (Size == 4)
{
return *(float *)addr;
}
else
{
assert(Size == 8);
return *(double *)addr;
}
}
//==========================================================================
//
// PFloat :: GetStoreOp
//
//==========================================================================
void PFloat::SetOps()
{
if (Size == 4)
{
storeOp = OP_SSP;
loadOp = OP_LSP;
}
else
{
assert(Size == 8);
storeOp = OP_SDP;
loadOp = OP_LDP;
}
moveOp = OP_MOVEF;
RegType = REGT_FLOAT;
}
/* PString ****************************************************************/
//==========================================================================
//
// PString Default Constructor
//
//==========================================================================
PString::PString()
: PBasicType(sizeof(FString), alignof(FString))
{
mDescriptiveName = "String";
storeOp = OP_SS;
loadOp = OP_LS;
moveOp = OP_MOVES;
RegType = REGT_STRING;
}
//==========================================================================
//
// PString :: WriteValue
//
//==========================================================================
void PString::WriteValue(FSerializer &ar, const char *key,const void *addr) const
{
ar(key, *(FString*)addr);
}
//==========================================================================
//
// PString :: ReadValue
//
//==========================================================================
bool PString::ReadValue(FSerializer &ar, const char *key, void *addr) const
{
const char *cptr;
ar.StringPtr(key, cptr);
if (cptr == nullptr)
{
return false;
}
else
{
*(FString*)addr = cptr;
return true;
}
}
//==========================================================================
//
// PString :: SetDefaultValue
//
//==========================================================================
void PString::SetDefaultValue(void *base, unsigned offset, TArray<FTypeAndOffset> *special)
{
if (base != nullptr) new((uint8_t *)base + offset) FString;
if (special != nullptr)
{
special->Push(std::make_pair(this, offset));
}
}