1 /*

     2  * LIBOIL - Library of Optimized Inner Loops

     3  * Copyright (c) 2007 David A. Schleef <ds@schleef.org>

     4  * All rights reserved.

     5  *

     6  * Redistribution and use in source and binary forms, with or without

     7  * modification, are permitted provided that the following conditions

     8  * are met:

     9  * 1. Redistributions of source code must retain the above copyright

    10  *    notice, this list of conditions and the following disclaimer.

    11  * 2. Redistributions in binary form must reproduce the above copyright

    12  *    notice, this list of conditions and the following disclaimer in the

    13  *    documentation and/or other materials provided with the distribution.

    14  * 

    15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

    16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

    19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

    20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

    21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

    22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

    23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

    24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    25  * POSSIBILITY OF SUCH DAMAGE.

    26  */

    27 

    28 #ifndef _LIBOIL_UTILS_H_

    29 #define _LIBOIL_UTILS_H_

    30 

    31 #include <liboil/liboil-stdint.h>

    32 

    33 #ifndef TRUE

    34 #define TRUE 1

    35 #endif

    36 #ifndef FALSE

    37 #define FALSE 0

    38 #endif

    39 

    40 typedef unsigned int oil_bool;

    41 

    42 #ifdef OIL_ENABLE_UNSTABLE_API

    43 

    44 #define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))

    45 #define DIVIDE_ROUND_UP(a,b) (((a) + (b) - 1)/(b))

    46 #ifndef MIN

    47 #define MIN(a,b) ((a)<(b) ? (a) : (b))

    48 #endif

    49 #ifndef MAX

    50 #define MAX(a,b) ((a)>(b) ? (a) : (b))

    51 #endif

    52 #ifndef CLAMP

    53 #define CLAMP(x,a,b) ((x)<(a) ? (a) : ((x)>(b) ? (b) : (x)))

    54 #endif

    55 #define ROUND_UP_SHIFT(x,y) (((x) + (1<<(y)) - 1)>>(y))

    56 #define ROUND_UP_POW2(x,y) (((x) + (1<<(y)) - 1)&((~0)<<(y)))

    57 #define ROUND_UP_2(x) ROUND_UP_POW2(x,1)

    58 #define ROUND_UP_4(x) ROUND_UP_POW2(x,2)

    59 #define ROUND_UP_8(x) ROUND_UP_POW2(x,3)

    60 #define ROUND_SHIFT(x,y) (((x) + (1<<((y)-1)))>>(y))

    61 

    62 #endif

    63 

    64 #if defined(__GNUC__) && defined(__GNUC_MINOR__)

    65 #define OIL_GNUC_PREREQ(maj, min) \

    66   ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))

    67 #else

    68 #define OIL_GNUC_PREREQ(maj, min) 0

    69 #endif

    70   

    71 #if OIL_GNUC_PREREQ(3,3) && defined(__ELF__)

    72 #define OIL_INTERNAL __attribute__ ((visibility ("internal")))

    73 #else

    74 #define OIL_INTERNAL

    75 #endif

    76 

    77 #ifdef __cplusplus

    78 #define OIL_BEGIN_DECLS extern "C" {

    79 #define OIL_END_DECLS }

    80 #else

    81 #define OIL_BEGIN_DECLS

    82 #define OIL_END_DECLS

    83 #endif

    84 

    85 #ifdef _MSC_VER

    86 #ifdef OIL_EXPORTS

    87 #define OIL_EXPORT __declspec(dllexport) extern

    88 #else

    89 #define OIL_EXPORT __declspec(dllimport) extern

    90 #endif

    91 #else /* not _MSC_VER */

    92 #define OIL_EXPORT extern

    93 #endif

    94 

    95 OIL_BEGIN_DECLS

    96 

    97 #ifdef OIL_ENABLE_UNSTABLE_API

    98 

    99 int get_file_int (const char *file, int *value);

   100 char * get_file (const char *file);

   101 char * get_cpuinfo_line (char *cpuinfo, const char *tag);

   102 char * _strndup (const char *s, int n);

   103 char ** strsplit (char *s);

   104 char * get_tag_value (char *s, const char *tag);

   105 

   106 #endif

   107 

   108 OIL_END_DECLS

   109 

   110 #endif

   111