X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fimports.h;h=a761f01851a4db5d58453a74af0b28c5739146d6;hb=bbe2d50b589e0d7b7b63d63814a5271b680164ce;hp=023ef2e6399a779a084f5b1ba8d5c9bad74f24d5;hpb=452d64986bd510753d13b56b33951f1b4348e3a9;p=mesa.git

diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 023ef2e6399..a761f01851a 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -36,9 +36,12 @@
 #define IMPORTS_H
 
 
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
 #include "compiler.h"
 #include "glheader.h"
-#include "errors.h"
+#include "util/bitscan.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -69,7 +72,7 @@ extern "C" {
 
 /**
  * Sometimes we treat GLfloats as GLints.  On x86 systems, moving a float
- * as a int (thereby using integer registers instead of FP registers) is
+ * as an int (thereby using integer registers instead of FP registers) is
  * a performance win.  Typically, this can be done with ordinary casts.
  * But with gcc's -fstrict-aliasing flag (which defaults to on in gcc 3.0)
  * these casts generate warnings.
@@ -79,92 +82,17 @@ typedef union { GLfloat f; GLint i; GLuint u; } fi_type;
 
 
 
-/**********************************************************************
- * Math macros
- */
-
-#define MAX_GLUSHORT	0xffff
-#define MAX_GLUINT	0xffffffff
-
-/* Degrees to radians conversion: */
-#define DEG2RAD (M_PI/180.0)
-
-
-/**
- * \name Work-arounds for platforms that lack C99 math functions
- */
-/*@{*/
-#if (!defined(_XOPEN_SOURCE) || (_XOPEN_SOURCE < 600)) && !defined(_ISOC99_SOURCE) \
-   && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) \
-   && (!defined(_MSC_VER) || (_MSC_VER < 1400))
-#define acosf(f) ((float) acos(f))
-#define asinf(f) ((float) asin(f))
-#define atan2f(x,y) ((float) atan2(x,y))
-#define atanf(f) ((float) atan(f))
-#define ceilf(f) ((float) ceil(f))
-#define cosf(f) ((float) cos(f))
-#define coshf(f) ((float) cosh(f))
-#define expf(f) ((float) exp(f))
-#define exp2f(f) ((float) exp2(f))
-#define floorf(f) ((float) floor(f))
-#define logf(f) ((float) log(f))
-
-#ifdef ANDROID
-#define log2f(f) (logf(f) * (float) (1.0 / M_LN2))
-#else
-#define log2f(f) ((float) log2(f))
-#endif
-
-#define powf(x,y) ((float) pow(x,y))
-#define sinf(f) ((float) sin(f))
-#define sinhf(f) ((float) sinh(f))
-#define sqrtf(f) ((float) sqrt(f))
-#define tanf(f) ((float) tan(f))
-#define tanhf(f) ((float) tanh(f))
-#define acoshf(f) ((float) acosh(f))
-#define asinhf(f) ((float) asinh(f))
-#define atanhf(f) ((float) atanh(f))
-#endif
-
 #if defined(_MSC_VER)
-#if _MSC_VER < 1800  /* Not req'd on VS2013 and above */
-static inline float truncf(float x) { return x < 0.0f ? ceilf(x) : floorf(x); }
-static inline float exp2f(float x) { return powf(2.0f, x); }
-static inline float log2f(float x) { return logf(x) * 1.442695041f; }
-static inline float asinhf(float x) { return logf(x + sqrtf(x * x + 1.0f)); }
-static inline float acoshf(float x) { return logf(x + sqrtf(x * x - 1.0f)); }
-static inline float atanhf(float x) { return (logf(1.0f + x) - logf(1.0f - x)) / 2.0f; }
-static inline int isblank(int ch) { return ch == ' ' || ch == '\t'; }
-#define strtoll(p, e, b) _strtoi64(p, e, b)
-#endif /* _MSC_VER < 1800 */
 #define strcasecmp(s1, s2) _stricmp(s1, s2)
 #endif
 /*@}*/
 
 
-/*
- * signbit() is a macro on Linux.  Not available on Windows.
- */
-#ifndef signbit
-#define signbit(x) ((x) < 0.0f)
-#endif
-
-
-/** single-precision inverse square root */
-static inline float
-INV_SQRTF(float x)
-{
-   /* XXX we could try Quake's fast inverse square root function here */
-   return 1.0F / sqrtf(x);
-}
-
-
 /***
  *** LOG2: Log base 2 of float
  ***/
 static inline GLfloat LOG2(GLfloat x)
 {
-#ifdef USE_IEEE
 #if 0
    /* This is pretty fast, but not accurate enough (only 2 fractional bits).
     * Based on code from http://www.stereopsis.com/log2.html
@@ -186,28 +114,22 @@ static inline GLfloat LOG2(GLfloat x)
    num.i += 127 << 23;
    num.f = ((-1.0f/3) * num.f + 2) * num.f - 2.0f/3;
    return num.f + log_2;
-#else
-   /*
-    * NOTE: log_base_2(x) = log(x) / log(2)
-    * NOTE: 1.442695 = 1/log(2).
-    */
-   return (GLfloat) (log(x) * 1.442695F);
-#endif
 }
 
 
 
+/**
+ * finite macro.
+ */
+#if defined(_MSC_VER)
+#  define finite _finite
+#endif
+
+
 /***
  *** IS_INF_OR_NAN: test if float is infinite or NaN
  ***/
-#ifdef USE_IEEE
-static inline int IS_INF_OR_NAN( float x )
-{
-   fi_type tmp;
-   tmp.f = x;
-   return !(int)((unsigned int)((tmp.i & 0x7fffffff)-0x7f800000) >> 31);
-}
-#elif defined(isfinite)
+#if defined(isfinite)
 #define IS_INF_OR_NAN(x)        (!isfinite(x))
 #elif defined(finite)
 #define IS_INF_OR_NAN(x)        (!finite(x))
@@ -218,35 +140,6 @@ static inline int IS_INF_OR_NAN( float x )
 #endif
 
 
-/***
- *** CEILF: ceiling of float
- *** FLOORF: floor of float
- *** FABSF: absolute value of float
- *** LOGF: the natural logarithm (base e) of the value
- *** EXPF: raise e to the value
- *** LDEXPF: multiply value by an integral power of two
- *** FREXPF: extract mantissa and exponent from value
- ***/
-#if defined(__gnu_linux__)
-/* C99 functions */
-#define CEILF(x)   ceilf(x)
-#define FLOORF(x)  floorf(x)
-#define FABSF(x)   fabsf(x)
-#define LOGF(x)    logf(x)
-#define EXPF(x)    expf(x)
-#define LDEXPF(x,y)  ldexpf(x,y)
-#define FREXPF(x,y)  frexpf(x,y)
-#else
-#define CEILF(x)   ((GLfloat) ceil(x))
-#define FLOORF(x)  ((GLfloat) floor(x))
-#define FABSF(x)   ((GLfloat) fabs(x))
-#define LOGF(x)    ((GLfloat) log(x))
-#define EXPF(x)    ((GLfloat) exp(x))
-#define LDEXPF(x,y)  ((GLfloat) ldexp(x,y))
-#define FREXPF(x,y)  ((GLfloat) frexp(x,y))
-#endif
-
-
 /**
  * Convert float to int by rounding to nearest integer, away from zero.
  */
@@ -255,6 +148,13 @@ static inline int IROUND(float f)
    return (int) ((f >= 0.0F) ? (f + 0.5F) : (f - 0.5F));
 }
 
+/**
+ * Convert double to int by rounding to nearest integer, away from zero.
+ */
+static inline int IROUNDD(double d)
+{
+   return (int) ((d >= 0.0) ? (d + 0.5) : (d - 0.5));
+}
 
 /**
  * Convert float to int64 by rounding to nearest integer.
@@ -274,34 +174,6 @@ static inline int IROUND_POS(float f)
    return (int) (f + 0.5F);
 }
 
-#ifdef __x86_64__
-#  include <xmmintrin.h>
-#endif
-
-/**
- * Convert float to int using a fast method.  The rounding mode may vary.
- */
-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)
-   int r;
-   _asm {
-	 fld f
-	 fistp r
-	}
-   return r;
-#elif defined(__x86_64__)
-   return _mm_cvt_ss2si(_mm_load_ss(&f));
-#else
-   return IROUND(f);
-#endif
-}
-
-
 /** Return (as an integer) floor of float */
 static inline int IFLOOR(float f)
 {
@@ -321,7 +193,7 @@ 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;
-#elif defined(USE_IEEE)
+#else
    int ai, bi;
    double af, bf;
    fi_type u;
@@ -330,44 +202,6 @@ static inline int IFLOOR(float f)
    u.f = (float) af;  ai = u.i;
    u.f = (float) bf;  bi = u.i;
    return (ai - bi) >> 1;
-#else
-   int i = IROUND(f);
-   return (i > f) ? i - 1 : i;
-#endif
-}
-
-
-/** 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;
-   bf = (3 << 22) + 0.5 - (double)f;
-   /* GCC generates an extra fstp/fld without this. */
-   __asm__ ("fstps %0" : "=m" (ai) : "t" (af) : "st");
-   __asm__ ("fstps %0" : "=m" (bi) : "t" (bf) : "st");
-   return (ai - bi + 1) >> 1;
-#elif defined(USE_IEEE)
-   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) >> 1;
-#else
-   int i = IROUND(f);
-   return (i < f) ? i + 1 : i;
 #endif
 }
 
@@ -398,8 +232,7 @@ _mesa_is_pow_two(int x)
 static inline int32_t
 _mesa_next_pow_two_32(uint32_t x)
 {
-#if defined(__GNUC__) && \
-	((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
+#ifdef HAVE___BUILTIN_CLZ
 	uint32_t y = (x != 1);
 	return (1 + y) << ((__builtin_clz(x - y) ^ 31) );
 #else
@@ -417,13 +250,10 @@ _mesa_next_pow_two_32(uint32_t x)
 static inline int64_t
 _mesa_next_pow_two_64(uint64_t x)
 {
-#if defined(__GNUC__) && \
-	((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
+#ifdef HAVE___BUILTIN_CLZLL
 	uint64_t y = (x != 1);
-	if (sizeof(x) == sizeof(long))
-		return (1 + y) << ((__builtin_clzl(x - y) ^ 63));
-	else
-		return (1 + y) << ((__builtin_clzll(x - y) ^ 63));
+	STATIC_ASSERT(sizeof(x) == sizeof(long long));
+	return (1 + y) << ((__builtin_clzll(x - y) ^ 63));
 #else
 	x--;
 	x |= x >> 1;
@@ -444,8 +274,7 @@ _mesa_next_pow_two_64(uint64_t x)
 static inline GLuint
 _mesa_logbase2(GLuint n)
 {
-#if defined(__GNUC__) && \
-   ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
+#ifdef HAVE___BUILTIN_CLZ
    return (31 - __builtin_clz(n | 1));
 #else
    GLuint pos = 0;
@@ -488,91 +317,20 @@ extern void *
 _mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
                     unsigned long alignment);
 
-extern void *
-_mesa_exec_malloc( GLuint size );
-
-extern void 
-_mesa_exec_free( void *addr );
-
-extern void *
-_mesa_realloc( void *oldBuffer, size_t oldSize, size_t newSize );
-
-
-#ifndef FFS_DEFINED
-#define FFS_DEFINED 1
-#ifdef __GNUC__
-#define ffs __builtin_ffs
-#define ffsll __builtin_ffsll
-#else
-extern int ffs(int i);
-extern int ffsll(long long int i);
-#endif /*__ GNUC__ */
-#endif /* FFS_DEFINED */
-
-
-#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304) /* gcc 3.4 or later */
+#ifdef HAVE___BUILTIN_POPCOUNT
 #define _mesa_bitcount(i) __builtin_popcount(i)
-#define _mesa_bitcount_64(i) __builtin_popcountll(i)
 #else
 extern unsigned int
 _mesa_bitcount(unsigned int n);
-extern unsigned int
-_mesa_bitcount_64(uint64_t n);
 #endif
 
-/**
- * Find the last (most significant) bit set in a word.
- *
- * Essentially ffs() in the reverse direction.
- */
-static inline unsigned int
-_mesa_fls(unsigned int n)
-{
-#if defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 304)
-   return n == 0 ? 0 : 32 - __builtin_clz(n);
+#ifdef HAVE___BUILTIN_POPCOUNTLL
+#define _mesa_bitcount_64(i) __builtin_popcountll(i)
 #else
-   unsigned int v = 1;
-
-   if (n == 0)
-      return 0;
-
-   while (n >>= 1)
-       v++;
-
-   return v;
+extern unsigned int
+_mesa_bitcount_64(uint64_t n);
 #endif
-}
 
-extern int
-_mesa_round_to_even(float val);
-
-extern GLhalfARB
-_mesa_float_to_half(float f);
-
-extern float
-_mesa_half_to_float(GLhalfARB h);
-
-static inline bool
-_mesa_half_is_negative(GLhalfARB h)
-{
-   return h & 0x8000;
-}
-
-extern void *
-_mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size, 
-               int (*compar)(const void *, const void *) );
-
-extern char *
-_mesa_getenv( const char *var );
-
-extern char *
-_mesa_strdup( const char *s );
-
-extern float
-_mesa_strtof( const char *s, char **end );
-
-extern unsigned int
-_mesa_str_checksum(const char *str);
 
 extern int
 _mesa_snprintf( char *str, size_t size, const char *fmt, ... ) PRINTFLIKE(3, 4);
@@ -581,11 +339,10 @@ extern int
 _mesa_vsnprintf(char *str, size_t size, const char *fmt, va_list arg);
 
 
-#if defined(_MSC_VER) && !defined(snprintf)
-#define snprintf _snprintf
+#if defined(_WIN32) && !defined(strtok_r)
+#define strtok_r strtok_s
 #endif
 
-
 #ifdef __cplusplus
 }
 #endif