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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

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This commit is contained in:
Colin Finck 2017-10-03 07:45:34 +00:00
parent b94e2d8ca0
commit c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
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122
win32ss/gdi/eng/floatobj.h Normal file
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#pragma once
C_ASSERT(sizeof(FIX) == sizeof(LONG));
#define FIX2LONG(x) (((x) + 8) >> 4)
#define LONG2FIX(x) ((x) << 4)
#if defined(_M_IX86)
FORCEINLINE
BOOL
_FLOATOBJ_Equal(FLOATOBJ *pf1, FLOATOBJ *pf2)
{
EFLOAT_S *pef1 = (EFLOAT_S*)pf1;
EFLOAT_S *pef2 = (EFLOAT_S*)pf2;
return (pef1->lMant == pef2->lMant && pef1->lExp == pef2->lExp);
}
#define FLOATOBJ_Equal _FLOATOBJ_Equal
FORCEINLINE
LONG
_FLOATOBJ_GetLong(FLOATOBJ *pf)
{
EFLOAT_S *pef = (EFLOAT_S*)pf;
return pef->lMant >> (32 - pef->lExp);
}
#define FLOATOBJ_GetLong _FLOATOBJ_GetLong
/*!
* \brief Converts a FLOATOBJ into a LONG by truncating the value to integer
*
* \param pf - Pointer to a FLOATOBJ containing the value to convert
*
* \param pl - Pointer to a variable that receives the result
*
* \return TRUE if the function succeeded, FALSE if the result would overflow
* a LONG.
*/
FORCEINLINE
BOOL
FASTCALL
FLOATOBJ_bConvertToLong(FLOATOBJ *pf, PLONG pl)
{
EFLOAT_S *pef = (EFLOAT_S*)pf;
LONG lShift = 32 - pef->lExp;
if (lShift < 0)
{
return FALSE;
}
*pl = pef->lMant >> lShift;
return TRUE;
}
FORCEINLINE
LONG
FLOATOBJ_GetFix(FLOATOBJ *pf)
{
EFLOAT_S *pef = (EFLOAT_S*)pf;
LONG Shift = (28 - pef->lExp);
return (Shift >= 0 ? pef->lMant >> Shift : pef->lMant << -Shift);
}
FORCEINLINE
BOOL
FLOATOBJ_IsLong(FLOATOBJ *pf)
{
EFLOAT_S *pef = (EFLOAT_S*)pf;
ULONG ulShift = pef->lExp;
if (ulShift < 32)
return ((pef->lMant << ulShift) == 0);
else
return (ulShift == 32);
}
FORCEINLINE
BOOL
FLOATOBJ_Equal0(FLOATOBJ *pf)
{
EFLOAT_S *pef = (EFLOAT_S*)pf;
return (pef->lMant == 0 && pef->lExp == 0);
}
FORCEINLINE
BOOL
FLOATOBJ_Equal1(FLOATOBJ *pf)
{
EFLOAT_S *pef = (EFLOAT_S*)pf;
return (pef->lMant == 0x40000000 && pef->lExp == 2);
}
extern const FLOATOBJ gef0;
extern const FLOATOBJ gef1;
extern const FLOATOBJ gef16;
#define FLOATOBJ_0 {0x00000000, 0x00000000}
#define FLOATOBJ_1 {0x40000000, 0x00000002}
#define FLOATOBJ_16 {0x40000000, 0x00000006}
#define FLOATOBJ_1_16 {0x40000000, 0xfffffffe}
#define FLOATOBJ_Set0(fo) do { (fo)->ul1 = 0; (fo)->ul2 = 0; } while (0)
#define FLOATOBJ_Set1(fo) do { (fo)->ul1 = 0x40000000; (fo)->ul2 = 2; } while (0)
#else
#define FLOATOBJ_bConvertToLong(pf, pl) (*pl = (LONG)*pf, TRUE)
#define FLOATOBJ_IsLong(pf) ((FLOAT)((LONG)*(pf)) == *(pf))
#define FLOATOBJ_Equal0(pf) (*(pf) == 0.)
#define FLOATOBJ_Equal1(pf) (*(pf) == 1.)
#define FLOATOBJ_GetFix(pf) ((LONG)(*(pf) * 16.))
#define FLOATOBJ_0 0.
#define FLOATOBJ_1 1.
#define FLOATOBJ_16 16.
#define FLOATOBJ_1_16 (1./16.)
static const FLOATOBJ gef0 = 0.;
static const FLOATOBJ gef1 = 1.;
static const FLOATOBJ gef16 = 16.;
#define FLOATOBJ_Set0(fo) *(fo) = 0;
#define FLOATOBJ_Set1(fo) *(fo) = 1;
#endif