diff options
Diffstat (limited to 'src/mesa/main/imports.h')
| -rw-r--r-- | src/mesa/main/imports.h | 90 |
1 files changed, 30 insertions, 60 deletions
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h index 73913b5ab7a..65cdf4a52b2 100644 --- a/src/mesa/main/imports.h +++ b/src/mesa/main/imports.h @@ -156,6 +156,11 @@ static inline int isblank(int ch) { return ch == ' ' || ch == '\t'; } #endif /*@}*/ +#if defined(__SUNPRO_C) +#define sqrtf(f) ((float) sqrt(f)) +#endif + + /*** *** LOG2: Log base 2 of float ***/ @@ -309,50 +314,36 @@ static inline int IROUND_POS(float f) * Convert float to int using a fast method. The rounding mode may vary. * XXX We could use an x86-64/SSE2 version here. */ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) static inline int F_TO_I(float f) { +#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) int r; __asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st"); return r; -} #elif defined(USE_X86_ASM) && defined(_MSC_VER) -static inline int F_TO_I(float f) -{ int r; _asm { fld f fistp r } return r; -} -#elif defined(__WATCOMC__) && defined(__386__) -long F_TO_I(float f); -#pragma aux iround = \ - "push eax" \ - "fistp dword ptr [esp]" \ - "pop eax" \ - parm [8087] \ - value [eax] \ - modify exact [eax]; #else -#define F_TO_I(f) IROUND(f) + return IROUND(f); #endif +} -/*** - *** IFLOOR: return (as an integer) floor of float - ***/ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) -/* - * IEEE floor for computers that round to nearest or even. - * 'f' must be between -4194304 and 4194303. - * This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1", - * but uses some IEEE specific tricks for better speed. - * Contributed by Josh Vanderhoof - */ -static inline int ifloor(float f) +/** Return (as an integer) floor of float */ +static inline int IFLOOR(float f) { +#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) + /* + * IEEE floor for computers that round to nearest or even. + * 'f' must be between -4194304 and 4194303. + * This floor operation is done by "(iround(f + .5) + iround(f - .5)) >> 1", + * but uses some IEEE specific tricks for better speed. + * Contributed by Josh Vanderhoof + */ int ai, bi; double af, bf; af = (3 << 22) + 0.5 + (double)f; @@ -361,45 +352,33 @@ static inline int ifloor(float f) __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st"); __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st"); return (ai - bi) >> 1; -} -#define IFLOOR(x) ifloor(x) #elif defined(USE_IEEE) -static inline int ifloor(float f) -{ int ai, bi; double af, bf; fi_type u; - af = (3 << 22) + 0.5 + (double)f; bf = (3 << 22) + 0.5 - (double)f; u.f = (float) af; ai = u.i; u.f = (float) bf; bi = u.i; return (ai - bi) >> 1; -} -#define IFLOOR(x) ifloor(x) #else -static inline int ifloor(float f) -{ int i = IROUND(f); return (i > f) ? i - 1 : i; -} -#define IFLOOR(x) ifloor(x) #endif +} -/*** - *** ICEIL: return (as an integer) ceiling of float - ***/ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) -/* - * IEEE ceil for computers that round to nearest or even. - * 'f' must be between -4194304 and 4194303. - * This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1", - * but uses some IEEE specific tricks for better speed. - * Contributed by Josh Vanderhoof - */ -static inline int iceil(float f) +/** Return (as an integer) ceiling of float */ +static inline int ICEIL(float f) { +#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) + /* + * IEEE ceil for computers that round to nearest or even. + * 'f' must be between -4194304 and 4194303. + * This ceil operation is done by "(iround(f + .5) + iround(f - .5) + 1) >> 1", + * but uses some IEEE specific tricks for better speed. + * Contributed by Josh Vanderhoof + */ int ai, bi; double af, bf; af = (3 << 22) + 0.5 + (double)f; @@ -408,11 +387,7 @@ static inline int iceil(float f) __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st"); __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st"); return (ai - bi + 1) >> 1; -} -#define ICEIL(x) iceil(x) #elif defined(USE_IEEE) -static inline int iceil(float f) -{ int ai, bi; double af, bf; fi_type u; @@ -421,16 +396,11 @@ static inline int iceil(float f) u.f = (float) af; ai = u.i; u.f = (float) bf; bi = u.i; return (ai - bi + 1) >> 1; -} -#define ICEIL(x) iceil(x) #else -static inline int iceil(float f) -{ int i = IROUND(f); return (i < f) ? i + 1 : i; -} -#define ICEIL(x) iceil(x) #endif +} /** |