X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fimports.h;h=7cf5f247be47b43ad05faa32e58dbf450630e67f;hb=8a4114b9294c8e8f5bb977be47cc7764c9cdf490;hp=5fb5581efce743037d0f230b5a27ac687189cc80;hpb=9520f483b8f1e45fa474674b415554988de5d8d3;p=mesa.git diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h index 5fb5581efce..7cf5f247be4 100644 --- a/src/mesa/main/imports.h +++ b/src/mesa/main/imports.h @@ -1,6 +1,5 @@ /* * Mesa 3-D graphics library - * Version: 7.5 * * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. * @@ -17,9 +16,10 @@ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. */ @@ -36,9 +36,12 @@ #define IMPORTS_H +#include +#include +#include #include "compiler.h" #include "glheader.h" - +#include "util/bitscan.h" #ifdef __cplusplus extern "C" { @@ -49,16 +52,10 @@ extern "C" { /** Memory macros */ /*@{*/ -/** Allocate \p BYTES bytes */ -#define MALLOC(BYTES) malloc(BYTES) -/** Allocate and zero \p BYTES bytes */ -#define CALLOC(BYTES) calloc(1, BYTES) /** Allocate a structure of type \p T */ #define MALLOC_STRUCT(T) (struct T *) malloc(sizeof(struct T)) /** Allocate and zero a structure of type \p T */ #define CALLOC_STRUCT(T) (struct T *) calloc(1, sizeof(struct T)) -/** Free memory */ -#define FREE(PTR) free(PTR) /*@}*/ @@ -75,151 +72,64 @@ 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. * The following union typedef is used to solve that. */ -typedef union { GLfloat f; GLint i; } fi_type; - - - -/********************************************************************** - * Math macros - */ - -#define MAX_GLUSHORT 0xffff -#define MAX_GLUINT 0xffffffff - -/* Degrees to radians conversion: */ -#define DEG2RAD (M_PI/180.0) - - -/*** - *** SQRTF: single-precision square root - ***/ -#if 0 /* _mesa_sqrtf() not accurate enough - temporarily disabled */ -# define SQRTF(X) _mesa_sqrtf(X) -#else -# define SQRTF(X) (float) sqrt((float) (X)) -#endif - - -/*** - *** INV_SQRTF: single-precision inverse square root - ***/ -#if 0 -#define INV_SQRTF(X) _mesa_inv_sqrt(X) -#else -#define INV_SQRTF(X) (1.0F / SQRTF(X)) /* this is faster on a P4 */ -#endif - +typedef union { GLfloat f; GLint i; GLuint u; } fi_type; -/** - * \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 cielf(f) ((float) ciel(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) -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 /*@}*/ + /*** *** LOG2: Log base 2 of float ***/ -#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 - */ static inline GLfloat LOG2(GLfloat x) { +#if 0 + /* This is pretty fast, but not accurate enough (only 2 fractional bits). + * Based on code from http://www.stereopsis.com/log2.html + */ const GLfloat y = x * x * x * x; const GLuint ix = *((GLuint *) &y); const GLuint exp = (ix >> 23) & 0xFF; const GLint log2 = ((GLint) exp) - 127; return (GLfloat) log2 * (1.0 / 4.0); /* 4, because of x^4 above */ -} #endif -/* Pretty fast, and accurate. - * Based on code from http://www.flipcode.com/totd/ - */ -static inline GLfloat LOG2(GLfloat val) -{ + /* Pretty fast, and accurate. + * Based on code from http://www.flipcode.com/totd/ + */ fi_type num; GLint log_2; - num.f = val; + num.f = x; log_2 = ((num.i >> 23) & 255) - 128; num.i &= ~(255 << 23); 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). + + + +/** + * finite macro. */ -#define LOG2(x) ((GLfloat) (log(x) * 1.442695F)) +#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)) -#elif defined(__VMS) -#define IS_INF_OR_NAN(x) (!finite(x)) #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L #define IS_INF_OR_NAN(x) (!isfinite(x)) #else @@ -227,125 +137,51 @@ static inline int IS_INF_OR_NAN( float x ) #endif -/*** - *** IS_NEGATIVE: test if float is negative - ***/ -#if defined(USE_IEEE) -static inline int GET_FLOAT_BITS( float x ) +/** + * Convert float to int by rounding to nearest integer, away from zero. + */ +static inline int IROUND(float f) { - fi_type fi; - fi.f = x; - return fi.i; + return (int) ((f >= 0.0F) ? (f + 0.5F) : (f - 0.5F)); } -#define IS_NEGATIVE(x) (GET_FLOAT_BITS(x) < 0) -#else -#define IS_NEGATIVE(x) (x < 0.0F) -#endif - -/*** - *** DIFFERENT_SIGNS: test if two floats have opposite signs - ***/ -#if defined(USE_IEEE) -#define DIFFERENT_SIGNS(x,y) ((GET_FLOAT_BITS(x) ^ GET_FLOAT_BITS(y)) & (1<<31)) -#else -/* Could just use (x*y<0) except for the flatshading requirements. - * Maybe there's a better way? +/** + * Convert double to int by rounding to nearest integer, away from zero. */ -#define DIFFERENT_SIGNS(x,y) ((x) * (y) <= 0.0F && (x) - (y) != 0.0F) -#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 - - -/*** - *** IROUND: return (as an integer) float rounded to nearest integer - ***/ -#if defined(USE_X86_ASM) && defined(__GNUC__) && defined(__i386__) -static inline int iround(float f) +static inline int IROUNDD(double d) { - int r; - __asm__ ("fistpl %0" : "=m" (r) : "t" (f) : "st"); - return r; + return (int) ((d >= 0.0) ? (d + 0.5) : (d - 0.5)); } -#define IROUND(x) iround(x) -#elif defined(USE_X86_ASM) && defined(_MSC_VER) -static inline int iround(float f) + +/** + * Convert float to int64 by rounding to nearest integer. + */ +static inline GLint64 IROUND64(float f) { - int r; - _asm { - fld f - fistp r - } - return r; + return (GLint64) ((f >= 0.0F) ? (f + 0.5F) : (f - 0.5F)); } -#define IROUND(x) iround(x) -#elif defined(__WATCOMC__) && defined(__386__) -long iround(float f); -#pragma aux iround = \ - "push eax" \ - "fistp dword ptr [esp]" \ - "pop eax" \ - parm [8087] \ - value [eax] \ - modify exact [eax]; -#define IROUND(x) iround(x) -#else -#define IROUND(f) ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F))) -#endif - -#define IROUND64(f) ((GLint64) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F))) - -/*** - *** IROUND_POS: return (as an integer) positive float rounded to nearest int - ***/ -#ifdef DEBUG -#define IROUND_POS(f) (assert((f) >= 0.0F), IROUND(f)) -#else -#define IROUND_POS(f) (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 +/** + * Convert positive float to int by rounding to nearest integer. */ -static inline int ifloor(float f) +static inline int IROUND_POS(float f) +{ + assert(f >= 0.0F); + return (int) (f + 0.5F); +} + +/** 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; @@ -354,76 +190,17 @@ 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) -{ +#else 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) -{ - 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; -} -#define ICEIL(x) iceil(x) -#elif defined(USE_IEEE) -static inline int iceil(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) >> 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 /** @@ -452,8 +229,7 @@ _mesa_is_pow_two(int x) static inline int32_t _mesa_next_pow_two_32(uint32_t x) { -#if defined(__GNUC__) && \ - ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) +#ifdef HAVE___BUILTIN_CLZ uint32_t y = (x != 1); return (1 + y) << ((__builtin_clz(x - y) ^ 31) ); #else @@ -471,13 +247,10 @@ _mesa_next_pow_two_32(uint32_t x) static inline int64_t _mesa_next_pow_two_64(uint64_t x) { -#if defined(__GNUC__) && \ - ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) +#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; @@ -498,8 +271,7 @@ _mesa_next_pow_two_64(uint64_t x) static inline GLuint _mesa_logbase2(GLuint n) { -#if defined(__GNUC__) && \ - ((__GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) +#ifdef HAVE___BUILTIN_CLZ return (31 - __builtin_clz(n | 1)); #else GLuint pos = 0; @@ -513,18 +285,6 @@ _mesa_logbase2(GLuint n) } -/** - * Return 1 if this is a little endian machine, 0 if big endian. - */ -static inline GLboolean -_mesa_little_endian(void) -{ - const GLuint ui = 1; /* intentionally not static */ - return *((const GLubyte *) &ui); -} - - - /********************************************************************** * Functions */ @@ -542,104 +302,17 @@ 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 ); - -extern void -_mesa_memset16( unsigned short *dst, unsigned short val, size_t n ); - -extern double -_mesa_sqrtd(double x); - -extern float -_mesa_sqrtf(float x); - -extern float -_mesa_inv_sqrtf(float x); - -extern void -_mesa_init_sqrt_table(void); - -#ifdef __GNUC__ - -#if defined(__MINGW32__) || defined(ANDROID) -#define ffs __builtin_ffs -#define ffsll __builtin_ffsll -#endif - -#define _mesa_ffs(i) ffs(i) -#define _mesa_ffsll(i) ffsll(i) - -#if ((_GNUC__ == 3 && __GNUC_MINOR__ >= 4) || __GNUC__ >= 4) -#define _mesa_bitcount(i) __builtin_popcount(i) -#else -extern unsigned int -_mesa_bitcount(unsigned int n); -#endif - -#else -extern int -_mesa_ffs(int32_t i); - -extern int -_mesa_ffsll(int64_t i); - -extern unsigned int -_mesa_bitcount(unsigned int n); -#endif - -extern GLhalfARB -_mesa_float_to_half(float f); - -extern float -_mesa_half_to_float(GLhalfARB h); - - -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); -struct gl_context; - -extern void -_mesa_warning( struct gl_context *gc, const char *fmtString, ... ) PRINTFLIKE(2, 3); - -extern void -_mesa_problem( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3); - -extern void -_mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... ) PRINTFLIKE(3, 4); - -extern void -_mesa_debug( const struct gl_context *ctx, const char *fmtString, ... ) PRINTFLIKE(2, 3); +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(HAVE_STRTOK_R) +#define strtok_r strtok_s #endif - #ifdef __cplusplus } #endif