apps/codecs/libgme/blargg_common.h

   1 // Sets up common environment for Shay Green's libraries.
   2 // To change configuration options, modify blargg_config.h, not this file.
   3
   4 #ifndef BLARGG_COMMON_H
   5 #define BLARGG_COMMON_H
   6
   7 #include <stddef.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <assert.h>
  11 #include <limits.h>
  12
  13 #undef BLARGG_COMMON_H
  14 // allow blargg_config.h to #include blargg_common.h
  15 #include "blargg_config.h"
  16 #ifndef BLARGG_COMMON_H
  17 #define BLARGG_COMMON_H
  18
  19 #if defined(ROCKBOX)
  20 #include "codeclib.h"
  21 #endif
  22
  23 #if 1 /* IRAM configuration is not yet active for all libGME codecs. */
  24     #undef  ICODE_ATTR
  25     #define ICODE_ATTR
  26
  27     #undef  IDATA_ATTR
  28     #define IDATA_ATTR
  29
  30     #undef  ICONST_ATTR
  31     #define ICONST_ATTR
  32
  33     #undef  IBSS_ATTR
  34     #define IBSS_ATTR
  35 #endif
  36
  37 // BLARGG_RESTRICT: equivalent to C99's restrict, where supported
  38 #if __GNUC__ >= 3 || _MSC_VER >= 1100
  39         #define BLARGG_RESTRICT __restrict
  40 #else
  41         #define BLARGG_RESTRICT
  42 #endif
  43
  44 // STATIC_CAST(T,expr): Used in place of static_cast<T> (expr)
  45 #ifndef STATIC_CAST
  46         #define STATIC_CAST(T,expr) ((T) (expr))
  47 #endif
  48
  49 // blargg_err_t (0 on success, otherwise error string)
  50 #ifndef blargg_err_t
  51         typedef const char* blargg_err_t;
  52 #endif
  53
  54 #define BLARGG_4CHAR( a, b, c, d ) \
  55         ((a&0xFF)*0x1000000L + (b&0xFF)*0x10000L + (c&0xFF)*0x100L + (d&0xFF))
  56
  57 // BOOST_STATIC_ASSERT( expr ): Generates compile error if expr is 0.
  58 #ifndef BOOST_STATIC_ASSERT
  59         #ifdef _MSC_VER
  60                 // MSVC6 (_MSC_VER < 1300) fails for use of __LINE__ when /Zl is specified
  61                 #define BOOST_STATIC_ASSERT( expr ) \
  62                         void blargg_failed_( int (*arg) [2 / (int) !!(expr) - 1] )
  63         #else
  64                 // Some other compilers fail when declaring same function multiple times in class,
  65                 // so differentiate them by line
  66                 #define BOOST_STATIC_ASSERT( expr ) \
  67                         void blargg_failed_( int (*arg) [2 / !!(expr) - 1] [__LINE__] )
  68         #endif
  69 #endif
  70
  71 // BLARGG_COMPILER_HAS_BOOL: If 0, provides bool support for old compiler. If 1,
  72 // compiler is assumed to support bool. If undefined, availability is determined.
  73 #ifndef BLARGG_COMPILER_HAS_BOOL
  74         #if defined (__MWERKS__)
  75                 #if !__option(bool)
  76                         #define BLARGG_COMPILER_HAS_BOOL 0
  77                 #endif
  78         #elif defined (_MSC_VER)
  79                 #if _MSC_VER < 1100
  80                         #define BLARGG_COMPILER_HAS_BOOL 0
  81                 #endif
  82         #elif defined (__GNUC__)
  83                 // supports bool
  84         #elif __cplusplus < 199711
  85                 #define BLARGG_COMPILER_HAS_BOOL 0
  86         #endif
  87 #endif
  88 #if defined (BLARGG_COMPILER_HAS_BOOL) && !BLARGG_COMPILER_HAS_BOOL
  89         // If you get errors here, modify your blargg_config.h file
  90         typedef int bool;
  91         static bool true  = 1;
  92         static bool false = 0;
  93 #endif
  94
  95 // blargg_long/blargg_ulong = at least 32 bits, int if it's big enough
  96 #include <limits.h>
  97
  98 #if INT_MAX >= 0x7FFFFFFF
  99         typedef int blargg_long;
 100 #else
 101         typedef long blargg_long;
 102 #endif
 103
 104 #if UINT_MAX >= 0xFFFFFFFF
 105         typedef unsigned blargg_ulong;
 106 #else
 107         typedef unsigned long blargg_ulong;
 108 #endif
 109
 110 // int8_t etc.
 111
 112
 113 // ROCKBOX: If defined, use <codeclib.h> for int_8_t etc
 114 #if defined (ROCKBOX)
 115         #include <codecs/lib/codeclib.h>
 116 // HAVE_STDINT_H: If defined, use <stdint.h> for int8_t etc.
 117 #elif defined (HAVE_STDINT_H)
 118         #include <stdint.h>
 119         #define BOOST
 120
 121 // HAVE_INTTYPES_H: If defined, use <stdint.h> for int8_t etc.
 122 #elif defined (HAVE_INTTYPES_H)
 123         #include <inttypes.h>
 124         #define BOOST
 125
 126 #else
 127         #if UCHAR_MAX == 0xFF && SCHAR_MAX == 0x7F
 128                 typedef signed char     int8_t;
 129                 typedef unsigned char   uint8_t;
 130         #else
 131                 // No suitable 8-bit type available
 132                 typedef struct see_blargg_common_h int8_t;
 133                 typedef struct see_blargg_common_h uint8_t;
 134         #endif
 135
 136         #if USHRT_MAX == 0xFFFF
 137                 typedef short           int16_t;
 138                 typedef unsigned short  uint16_t;
 139         #else
 140                 // No suitable 16-bit type available
 141                 typedef struct see_blargg_common_h int16_t;
 142                 typedef struct see_blargg_common_h uint16_t;
 143         #endif
 144
 145         #if ULONG_MAX == 0xFFFFFFFF
 146                 typedef long            int32_t;
 147                 typedef unsigned long   uint32_t;
 148         #elif UINT_MAX == 0xFFFFFFFF
 149                 typedef int             int32_t;
 150                 typedef unsigned int    uint32_t;
 151         #else
 152                 // No suitable 32-bit type available
 153                 typedef struct see_blargg_common_h int32_t;
 154                 typedef struct see_blargg_common_h uint32_t;
 155         #endif
 156 #endif
 157
 158 #endif
 159 #endif