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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#ifndef QFIXED_P_H
#define QFIXED_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/private/qtguiglobal_p.h>
#include "QtCore/qdebug.h"
#include "QtCore/qpoint.h"
#include "QtCore/qnumeric.h"
#include "QtCore/qsize.h"
QT_BEGIN_NAMESPACE
struct QFixed {
private:
constexpr QFixed(int val, int) : val(val) {} // 2nd int is just a dummy for disambiguation
public:
constexpr QFixed() : val(0) {}
constexpr QFixed(int i) : val(i * 64) {}
constexpr QFixed(long i) : val(i * 64) {}
constexpr QFixed(long long i) : val(i * 64) {}
constexpr static QFixed fromReal(qreal r) { return fromFixed((int)(r*qreal(64))); }
constexpr static QFixed fromFixed(int fixed) { return QFixed(fixed,0); } // uses private ctor
constexpr inline int value() const { return val; }
inline void setValue(int value) { val = value; }
constexpr inline int toInt() const { return (((val)+32) & -64)>>6; }
constexpr inline qreal toReal() const { return ((qreal)val)/(qreal)64; }
constexpr inline int truncate() const { return val>>6; }
constexpr inline QFixed round() const { return fromFixed(((val)+32) & -64); }
constexpr inline QFixed floor() const { return fromFixed((val) & -64); }
constexpr inline QFixed ceil() const { return fromFixed((val+63) & -64); }
constexpr inline QFixed operator+(int i) const { return fromFixed(val + i * 64); }
constexpr inline QFixed operator+(uint i) const { return fromFixed((val + (i<<6))); }
constexpr inline QFixed operator+(QFixed other) const { return fromFixed((val + other.val)); }
inline QFixed &operator+=(int i) { val += i * 64; return *this; }
inline QFixed &operator+=(uint i) { val += (i<<6); return *this; }
inline QFixed &operator+=(QFixed other) { val += other.val; return *this; }
constexpr inline QFixed operator-(int i) const { return fromFixed(val - i * 64); }
constexpr inline QFixed operator-(uint i) const { return fromFixed((val - (i<<6))); }
constexpr inline QFixed operator-(QFixed other) const { return fromFixed((val - other.val)); }
inline QFixed &operator-=(int i) { val -= i * 64; return *this; }
inline QFixed &operator-=(uint i) { val -= (i<<6); return *this; }
inline QFixed &operator-=(QFixed other) { val -= other.val; return *this; }
constexpr inline QFixed operator-() const { return fromFixed(-val); }
#define REL_OP(op) \
friend constexpr bool operator op(QFixed lhs, QFixed rhs) noexcept \
{ return lhs.val op rhs.val; }
REL_OP(==)
REL_OP(!=)
REL_OP(< )
REL_OP(> )
REL_OP(<=)
REL_OP(>=)
#undef REL_OP
constexpr inline bool operator!() const { return !val; }
inline QFixed &operator/=(int x) { val /= x; return *this; }
inline QFixed &operator/=(QFixed o) {
if (o.val == 0) {
val = 0x7FFFFFFFL;
} else {
bool neg = false;
qint64 a = val;
qint64 b = o.val;
if (a < 0) { a = -a; neg = true; }
if (b < 0) { b = -b; neg = !neg; }
int res = (int)(((a << 6) + (b >> 1)) / b);
val = (neg ? -res : res);
}
return *this;
}
constexpr inline QFixed operator/(int d) const { return fromFixed(val/d); }
inline QFixed operator/(QFixed b) const { QFixed f = *this; return (f /= b); }
inline QFixed operator>>(int d) const { QFixed f = *this; f.val >>= d; return f; }
inline QFixed &operator*=(int i) { val *= i; return *this; }
inline QFixed &operator*=(uint i) { val *= i; return *this; }
inline QFixed &operator*=(QFixed o) {
bool neg = false;
qint64 a = val;
qint64 b = o.val;
if (a < 0) { a = -a; neg = true; }
if (b < 0) { b = -b; neg = !neg; }
int res = (int)((a * b + 0x20L) >> 6);
val = neg ? -res : res;
return *this;
}
constexpr inline QFixed operator*(int i) const { return fromFixed(val * i); }
constexpr inline QFixed operator*(uint i) const { return fromFixed(val * i); }
inline QFixed operator*(QFixed o) const { QFixed f = *this; return (f *= o); }
private:
constexpr QFixed(qreal i) : val((int)(i*qreal(64))) {}
constexpr inline QFixed operator+(qreal i) const { return fromFixed((val + (int)(i*qreal(64)))); }
inline QFixed &operator+=(qreal i) { val += (int)(i*64); return *this; }
constexpr inline QFixed operator-(qreal i) const { return fromFixed((val - (int)(i*qreal(64)))); }
inline QFixed &operator-=(qreal i) { val -= (int)(i*64); return *this; }
inline QFixed &operator/=(qreal r) { val = (int)(val/r); return *this; }
constexpr inline QFixed operator/(qreal d) const { return fromFixed((int)(val/d)); }
inline QFixed &operator*=(qreal d) { val = (int) (val*d); return *this; }
constexpr inline QFixed operator*(qreal d) const { return fromFixed((int) (val*d)); }
int val;
};
Q_DECLARE_TYPEINFO(QFixed, Q_PRIMITIVE_TYPE);
#define QFIXED_MAX (INT_MAX/256)
constexpr inline int qRound(QFixed f) { return f.toInt(); }
constexpr inline int qFloor(QFixed f) { return f.floor().truncate(); }
constexpr inline QFixed operator*(int i, QFixed d) { return d*i; }
constexpr inline QFixed operator+(int i, QFixed d) { return d+i; }
constexpr inline QFixed operator-(int i, QFixed d) { return -(d-i); }
constexpr inline QFixed operator*(uint i, QFixed d) { return d*i; }
constexpr inline QFixed operator+(uint i, QFixed d) { return d+i; }
constexpr inline QFixed operator-(uint i, QFixed d) { return -(d-i); }
// constexpr inline QFixed operator*(qreal d, QFixed d2) { return d2*d; }
inline bool qAddOverflow(QFixed v1, QFixed v2, QFixed *r)
{
int val;
bool result = qAddOverflow(v1.value(), v2.value(), &val);
r->setValue(val);
return result;
}
inline bool qMulOverflow(QFixed v1, QFixed v2, QFixed *r)
{
int val;
bool result = qMulOverflow(v1.value(), v2.value(), &val);
r->setValue(val);
return result;
}
#ifndef QT_NO_DEBUG_STREAM
inline QDebug &operator<<(QDebug &dbg, QFixed f)
{ return dbg << f.toReal(); }
#endif
struct QFixedPoint {
QFixed x;
QFixed y;
constexpr inline QFixedPoint() {}
constexpr inline QFixedPoint(QFixed _x, QFixed _y) : x(_x), y(_y) {}
constexpr QPointF toPointF() const { return QPointF(x.toReal(), y.toReal()); }
constexpr static QFixedPoint fromPointF(const QPointF &p) {
return QFixedPoint(QFixed::fromReal(p.x()), QFixed::fromReal(p.y()));
}
constexpr inline bool operator==(const QFixedPoint &other) const
{
return x == other.x && y == other.y;
}
};
Q_DECLARE_TYPEINFO(QFixedPoint, Q_PRIMITIVE_TYPE);
constexpr inline QFixedPoint operator-(const QFixedPoint &p1, const QFixedPoint &p2)
{ return QFixedPoint(p1.x - p2.x, p1.y - p2.y); }
constexpr inline QFixedPoint operator+(const QFixedPoint &p1, const QFixedPoint &p2)
{ return QFixedPoint(p1.x + p2.x, p1.y + p2.y); }
struct QFixedSize {
QFixed width;
QFixed height;
constexpr QFixedSize() {}
constexpr QFixedSize(QFixed _width, QFixed _height) : width(_width), height(_height) {}
constexpr QSizeF toSizeF() const { return QSizeF(width.toReal(), height.toReal()); }
constexpr static QFixedSize fromSizeF(const QSizeF &s) {
return QFixedSize(QFixed::fromReal(s.width()), QFixed::fromReal(s.height()));
}
};
Q_DECLARE_TYPEINFO(QFixedSize, Q_PRIMITIVE_TYPE);
QT_END_NAMESPACE
#endif // QTEXTENGINE_P_H