From 4f25420bdd834e81a3e22733304efc5261c2998a Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Sun, 24 Aug 2008 17:48:55 -0600 Subject: gallium: refactor/replace p_util.h with util/u_memory.h and util/u_math.h Also, rename p_tile.[ch] to u_tile.[ch] --- src/gallium/auxiliary/util/u_math.h | 240 +++++++++++++++++++++++++++++++++++- 1 file changed, 238 insertions(+), 2 deletions(-) (limited to 'src/gallium/auxiliary/util/u_math.h') diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index a541d30a5d..9b4ca39371 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -40,8 +40,6 @@ #include "pipe/p_compiler.h" -#include "pipe/p_util.h" -#include "util/u_math.h" #ifdef __cplusplus @@ -49,6 +47,132 @@ extern "C" { #endif +#if defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT) +__inline double ceil(double val) +{ + double ceil_val; + + if((val - (long) val) == 0) { + ceil_val = val; + } + else { + if(val > 0) { + ceil_val = (long) val + 1; + } + else { + ceil_val = (long) val; + } + } + + return ceil_val; +} + +#ifndef PIPE_SUBSYSTEM_WINDOWS_CE +__inline double floor(double val) +{ + double floor_val; + + if((val - (long) val) == 0) { + floor_val = val; + } + else { + if(val > 0) { + floor_val = (long) val; + } + else { + floor_val = (long) val - 1; + } + } + + return floor_val; +} +#endif + +#pragma function(pow) +__inline double __cdecl pow(double val, double exponent) +{ + /* XXX */ + assert(0); + return 0; +} + +#pragma function(log) +__inline double __cdecl log(double val) +{ + /* XXX */ + assert(0); + return 0; +} + +#pragma function(atan2) +__inline double __cdecl atan2(double val) +{ + /* XXX */ + assert(0); + return 0; +} +#else +#include +#include +#endif + + +#if defined(_MSC_VER) +#if _MSC_VER < 1400 && !defined(__cplusplus) || defined(PIPE_SUBSYSTEM_WINDOWS_CE) + +static INLINE float cosf( float f ) +{ + return (float) cos( (double) f ); +} + +static INLINE float sinf( float f ) +{ + return (float) sin( (double) f ); +} + +static INLINE float ceilf( float f ) +{ + return (float) ceil( (double) f ); +} + +static INLINE float floorf( float f ) +{ + return (float) floor( (double) f ); +} + +static INLINE float powf( float f, float g ) +{ + return (float) pow( (double) f, (double) g ); +} + +static INLINE float sqrtf( float f ) +{ + return (float) sqrt( (double) f ); +} + +static INLINE float fabsf( float f ) +{ + return (float) fabs( (double) f ); +} + +static INLINE float logf( float f ) +{ + return (float) log( (double) f ); +} + +#else +/* Work-around an extra semi-colon in VS 2005 logf definition */ +#ifdef logf +#undef logf +#define logf(x) ((float)log((double)(x))) +#endif /* logf */ +#endif +#endif /* _MSC_VER */ + + + + + #define POW2_TABLE_SIZE 256 #define POW2_TABLE_SCALE ((float) (POW2_TABLE_SIZE-1)) extern float pow2_table[POW2_TABLE_SIZE]; @@ -59,6 +183,11 @@ extern void util_init_math(void); +union fi { + float f; + int i; + unsigned ui; +}; /** @@ -195,6 +324,113 @@ util_iround(float f) +#if defined(PIPE_CC_MSVC) && defined(PIPE_ARCH_X86) +/** + * Find first bit set in word. Least significant bit is 1. + * Return 0 if no bits set. + */ +static INLINE +unsigned ffs( unsigned u ) +{ + unsigned i; + + if( u == 0 ) { + return 0; + } + + __asm bsf eax, [u] + __asm inc eax + __asm mov [i], eax + + return i; +} +#endif + + +/** + * Return float bits. + */ +static INLINE unsigned +fui( float f ) +{ + union fi fi; + fi.f = f; + return fi.ui; +} + + + +static INLINE float +ubyte_to_float(ubyte ub) +{ + return (float) ub * (1.0f / 255.0f); +} + + +/** + * Convert float in [0,1] to ubyte in [0,255] with clamping. + */ +static INLINE ubyte +float_to_ubyte(float f) +{ + const int ieee_0996 = 0x3f7f0000; /* 0.996 or so */ + union fi tmp; + + tmp.f = f; + if (tmp.i < 0) { + return (ubyte) 0; + } + else if (tmp.i >= ieee_0996) { + return (ubyte) 255; + } + else { + tmp.f = tmp.f * (255.0f/256.0f) + 32768.0f; + return (ubyte) tmp.i; + } +} + + + +#define CLAMP( X, MIN, MAX ) ( (X)<(MIN) ? (MIN) : ((X)>(MAX) ? (MAX) : (X)) ) + +#define MIN2( A, B ) ( (A)<(B) ? (A) : (B) ) +#define MAX2( A, B ) ( (A)>(B) ? (A) : (B) ) + + +static INLINE int +align(int value, int alignment) +{ + return (value + alignment - 1) & ~(alignment - 1); +} + + +#ifndef COPY_4V +#define COPY_4V( DST, SRC ) \ +do { \ + (DST)[0] = (SRC)[0]; \ + (DST)[1] = (SRC)[1]; \ + (DST)[2] = (SRC)[2]; \ + (DST)[3] = (SRC)[3]; \ +} while (0) +#endif + + +#ifndef COPY_4FV +#define COPY_4FV( DST, SRC ) COPY_4V(DST, SRC) +#endif + + +#ifndef ASSIGN_4V +#define ASSIGN_4V( DST, V0, V1, V2, V3 ) \ +do { \ + (DST)[0] = (V0); \ + (DST)[1] = (V1); \ + (DST)[2] = (V2); \ + (DST)[3] = (V3); \ +} while (0) +#endif + + #ifdef __cplusplus } #endif -- cgit v1.2.3