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- Add MASM assembler files for MSVC x64 projects to support vm_x86 in x64 mode

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- Clean up ftol()/snapvector() mess
- Make use of SSE instructions for ftol()/snapvector() if available
- move ftol/snapvector pure assembler to inline assembler, this will add x86_64 and improve support for different calling conventions
- Set FPU control word at program startup to get consistent behaviour on all platforms
This commit is contained in:
Thilo Schulz 2011-06-13 09:56:39 +00:00
parent 471182cba0
commit 03201aff22
22 changed files with 540 additions and 460 deletions
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54
code/qcommon/q_shared.h
View file

@ -419,6 +419,58 @@ extern vec3_t axisDefault[3];
#define IS_NAN(x) (((*(int *)&x)&nanmask)==nanmask)
int Q_isnan(float x);
#ifdef idx64
extern long qftolsse(float f);
extern void qvmftolsse(void);
extern void qsnapvectorsse(vec3_t vec);
#define Q_ftol qftolsse
#define Q_SnapVector qsnapvectorsse
extern void (*Q_VMftol)(void);
#elif defined(id386)
extern long QDECL qftolx87(float f);
extern long QDECL qftolsse(float f);
extern void QDECL qvmftolx87(void);
extern void QDECL qvmftolsse(void);
extern void QDECL qsnapvectorx87(vec3_t vec);
extern void QDECL qsnapvectorsse(vec3_t vec);
extern long (QDECL *Q_ftol)(float f);
extern void (QDECL *Q_VMftol)(void);
extern void (QDECL *Q_SnapVector)(vec3_t vec);
#else
#define Q_ftol(f) lrintf((f))
#define Q_SnapVector(vec)\
do\
{\
vec3_t *temp = (vec);\
\
(*temp)[0] = round((*temp)[0]);\
(*temp)[1] = round((*temp)[1]);\
(*temp)[2] = round((*temp)[2]);\
} while(0)
#endif
/*
// if your system does not have lrintf() and round() you can try this block. Please also open a bug report at bugzilla.icculus.org
// or write a mail to the ioq3 mailing list.
#else
#define Q_ftol(f) ((long) (f))
#define Q_round(f) do { if((f) < 0) (f) -= 0.5f; else (f) += 0.5f; (f) = Q_ftol((f)); } while(0)
#define Q_SnapVector(vec) \
do\
{\
vec3_t *temp = (vec);\
\
Q_round((*temp)[0]);\
Q_round((*temp)[1]);\
Q_round((*temp)[2]);\
} while(0)
#endif
*/
#if idppc
static ID_INLINE float Q_rsqrt( float number ) {
@ -637,8 +689,6 @@ void MakeNormalVectors( const vec3_t forward, vec3_t right, vec3_t up );
void MatrixMultiply(float in1[3][3], float in2[3][3], float out[3][3]);
void AngleVectors( const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up);
void PerpendicularVector( vec3_t dst, const vec3_t src );
int Q_isnan( float x );
#ifndef MAX
#define MAX(x,y) ((x)>(y)?(x):(y))