Source code of Windows XP (NT5)
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#ifndef ZQFROMZQ_DEFINED
#define ZQFROMZQ_DEFINED
#include "lsdefs.h"
#define zqLim 1491309L /* higher resolution will overflow */
long ZqFromZa_C (long, long);
#ifdef _X86_
long ZqFromZa_Asm (long, long);
__int64 Div64_Asm (__int64, __int64);
__int64 Mul64_Asm (__int64, __int64);
#define ZqFromZa(dzqInch,za) ZqFromZa_Asm ((dzqInch),(za))
#define Div64(DVND,DVSR) Div64_Asm ((DVND),(DVSR))
#define Mul64(A,B) Mul64_Asm ((A),(B))
#else
#define ZqFromZa(dzqInch,za) ZqFromZa_C ((dzqInch),(za))
#define Div64(DVND,DVSR) ((__int64) (DVND) / (__int64) (DVSR))
#define Mul64(A,B) ((__int64) (A) * (__int64) (B))
#endif
long ZaFromZq(long, long);
long LsLwMultDivR(long, long, long);
#define I_UpFromUa(pdevres,ua) (ZqFromZa((pdevres)->dxpInch, (ua)))
#define I_UrFromUa(pdevres,ua) (ZqFromZa((pdevres)->dxrInch, (ua)))
#define I_VpFromVa(pdevres,va) (ZqFromZa((pdevres)->dypInch, (va)))
#define I_VrFromVa(pdevres,va) (ZqFromZa((pdevres)->dyrInch, (va)))
#define I_UaFromUp(pdevres,up) (ZaFromZq((pdevres)->dxpInch, (up)))
#define I_VaFromVp(pdevres,vp) (ZaFromZq((pdevres)->dypInch, (vp)))
#define I_UaFromUr(pdevres,ur) (ZaFromZq((pdevres)->dxrInch, (ur)))
#define I_VaFromVr(pdevres,vr) (ZaFromZq((pdevres)->dyrInch, (vr)))
#define UpFromUa(tfl,pdevres,ua) (((tfl) & fUVertical) ? \
I_VpFromVa(pdevres,ua) :\
I_UpFromUa(pdevres,ua) \
)
#define UrFromUa(tfl,pdevres,ua) (((tfl) & fUVertical) ? \
I_VrFromVa(pdevres,ua) :\
I_UrFromUa(pdevres,ua) \
)
#define VpFromVa(tfl,pdevres,va) ((tfl) & fUVertical) ? \
I_UpFromUa(pdevres,va) :\
I_VpFromVa(pdevres,va) \
)
#define VrFromVa(tfl,pdevres,va) (((tfl) & fUVertical) ? \
I_UrFromUa(pdevres,va) :\
I_VrFromVa(pdevres,va) \
)
#define UaFromUp(tfl,pdevres,up) (((tfl) & fUVertical) ? \
I_VaFromVp(pdevres,up) :\
I_UaFromUp(pdevres,up) \
)
#define VaFromVp(tfl,pdevres,vp) (((tfl) & fUVertical) ? \
I_UaFromUp(pdevres,vp) :\
I_VaFromVp(pdevres,vp) \
)
#define UaFromUr(tfl,pdevres,ur) (((tfl) & fUVertical) ? \
I_VaFromVr(pdevres,ur) :\
I_UaFromUr(pdevres,ur) \
)
#define VaFromVr(tfl,pdevres,vr) (((tfl) & fUVertical) ? \
I_UaFromUr(pdevres,vr) :\
I_VaFromVr(pdevres,vr) \
)
/*
#define UpFromUr(pdevres,ur) UpFromUa(pdevres, UaFromUr(pdevres, ur))
#define VpFromVr(pdevres,vr) VpFromVa(pdevres, VaFromVr(pdevres, vr))
*/
#define UpFromUr(tfl,pdevres,ur) (((tfl) & fUVertical) ? \
LsLwMultDivR(ur, (pdevres)->dypInch, (pdevres)->dyrInch): \
LsLwMultDivR(ur, (pdevres)->dxpInch, (pdevres)->dxrInch) \
)
#define VpFromVr(tfl,pdevres,vr) (((tfl) & fUVertical) ? \
LsLwMultDivR(vr, (pdevres)->dxpInch, (pdevres)->dxrInch): \
LsLwMultDivR(vr, (pdevres)->dypInch, (pdevres)->dyrInch) \
)
#define UrFromUp(tfl,pdevres,up) (((tfl) & fUVertical) ? \
LsLwMultDivR(up, (pdevres)->dyrInch, (pdevres)->dypInch): \
LsLwMultDivR(up, (pdevres)->dxrInch, (pdevres)->dxpInch) \
)
#define VrFromVp(tfl,pdevres,vp) (((tfl) & fUVertical) ? \
LsLwMultDivR(vp, (pdevres)->dxrInch, (pdevres)->dxpInch): \
LsLwMultDivR(vp, (pdevres)->dyrInch, (pdevres)->dypInch) \
)
#endif /* ZQFROMZQ_DEFINED */