test/testplatform.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 28 May 2006 13:04:16 +0000
branchSDL-1.3
changeset 1662 782fd950bd46
parent 1621 f12379c41042
child 1668 4da1ee79c9af
permissions -rw-r--r--
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.

WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid.

The code is now run through a consistent indent format:
indent -i4 -nut -nsc -br -ce

The headers are being converted to automatically generate doxygen documentation.
     1 
     2 #include <stdio.h>
     3 
     4 #include "SDL.h"
     5 #include "SDL_endian.h"
     6 #include "SDL_cpuinfo.h"
     7 
     8 /*
     9  * Watcom C flags these as Warning 201: "Unreachable code" if you just
    10  *  compare them directly, so we push it through a function to keep the
    11  *  compiler quiet.  --ryan.
    12  */
    13 static int
    14 badsize (size_t sizeoftype, size_t hardcodetype)
    15 {
    16     return sizeoftype != hardcodetype;
    17 }
    18 
    19 int
    20 TestTypes (SDL_bool verbose)
    21 {
    22     int error = 0;
    23 
    24     if (badsize (sizeof (Uint8), 1)) {
    25         if (verbose)
    26             printf ("sizeof(Uint8) != 1, instead = %ul\n", sizeof (Uint8));
    27         ++error;
    28     }
    29     if (badsize (sizeof (Uint16), 2)) {
    30         if (verbose)
    31             printf ("sizeof(Uint16) != 2, instead = %ul\n", sizeof (Uint16));
    32         ++error;
    33     }
    34     if (badsize (sizeof (Uint32), 4)) {
    35         if (verbose)
    36             printf ("sizeof(Uint32) != 4, instead = %ul\n", sizeof (Uint32));
    37         ++error;
    38     }
    39 #ifdef SDL_HAS_64BIT_TYPE
    40     if (badsize (sizeof (Uint64), 8)) {
    41         if (verbose)
    42             printf ("sizeof(Uint64) != 8, instead = %ul\n", sizeof (Uint64));
    43         ++error;
    44     }
    45 #else
    46     if (verbose) {
    47         printf ("WARNING: No 64-bit datatype on this platform\n");
    48     }
    49 #endif
    50     if (verbose && !error)
    51         printf ("All data types are the expected size.\n");
    52 
    53     return (error ? 1 : 0);
    54 }
    55 
    56 int
    57 TestEndian (SDL_bool verbose)
    58 {
    59     int error = 0;
    60     Uint16 value = 0x1234;
    61     int real_byteorder;
    62     Uint16 value16 = 0xCDAB;
    63     Uint16 swapped16 = 0xABCD;
    64     Uint32 value32 = 0xEFBEADDE;
    65     Uint32 swapped32 = 0xDEADBEEF;
    66 #ifdef SDL_HAS_64BIT_TYPE
    67     Uint64 value64, swapped64;
    68     value64 = 0xEFBEADDE;
    69     value64 <<= 32;
    70     value64 |= 0xCDAB3412;
    71     swapped64 = 0x1234ABCD;
    72     swapped64 <<= 32;
    73     swapped64 |= 0xDEADBEEF;
    74 #endif
    75 
    76     if (verbose) {
    77         printf ("Detected a %s endian machine.\n",
    78                 (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
    79     }
    80     if ((*((char *) &value) >> 4) == 0x1) {
    81         real_byteorder = SDL_BIG_ENDIAN;
    82     } else {
    83         real_byteorder = SDL_LIL_ENDIAN;
    84     }
    85     if (real_byteorder != SDL_BYTEORDER) {
    86         if (verbose) {
    87             printf ("Actually a %s endian machine!\n",
    88                     (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
    89         }
    90         ++error;
    91     }
    92     if (verbose) {
    93         printf ("Value 16 = 0x%X, swapped = 0x%X\n", value16,
    94                 SDL_Swap16 (value16));
    95     }
    96     if (SDL_Swap16 (value16) != swapped16) {
    97         if (verbose) {
    98             printf ("16 bit value swapped incorrectly!\n");
    99         }
   100         ++error;
   101     }
   102     if (verbose) {
   103         printf ("Value 32 = 0x%X, swapped = 0x%X\n", value32,
   104                 SDL_Swap32 (value32));
   105     }
   106     if (SDL_Swap32 (value32) != swapped32) {
   107         if (verbose) {
   108             printf ("32 bit value swapped incorrectly!\n");
   109         }
   110         ++error;
   111     }
   112 #ifdef SDL_HAS_64BIT_TYPE
   113     if (verbose) {
   114 #ifdef _MSC_VER
   115         printf ("Value 64 = 0x%I64X, swapped = 0x%I64X\n", value64,
   116                 SDL_Swap64 (value64));
   117 #else
   118         printf ("Value 64 = 0x%llX, swapped = 0x%llX\n", value64,
   119                 SDL_Swap64 (value64));
   120 #endif
   121     }
   122     if (SDL_Swap64 (value64) != swapped64) {
   123         if (verbose) {
   124             printf ("64 bit value swapped incorrectly!\n");
   125         }
   126         ++error;
   127     }
   128 #endif
   129     return (error ? 1 : 0);
   130 }
   131 
   132 
   133 int
   134 TestCPUInfo (SDL_bool verbose)
   135 {
   136     if (verbose) {
   137         printf ("RDTSC %s\n", SDL_HasRDTSC ()? "detected" : "not detected");
   138         printf ("MMX %s\n", SDL_HasMMX ()? "detected" : "not detected");
   139         printf ("MMX Ext %s\n",
   140                 SDL_HasMMXExt ()? "detected" : "not detected");
   141         printf ("3DNow %s\n", SDL_Has3DNow ()? "detected" : "not detected");
   142         printf ("3DNow Ext %s\n",
   143                 SDL_Has3DNowExt ()? "detected" : "not detected");
   144         printf ("SSE %s\n", SDL_HasSSE ()? "detected" : "not detected");
   145         printf ("SSE2 %s\n", SDL_HasSSE2 ()? "detected" : "not detected");
   146         printf ("AltiVec %s\n",
   147                 SDL_HasAltiVec ()? "detected" : "not detected");
   148     }
   149     return (0);
   150 }
   151 
   152 int
   153 main (int argc, char *argv[])
   154 {
   155     SDL_bool verbose = SDL_TRUE;
   156     int status = 0;
   157 
   158     if (argv[1] && (SDL_strcmp (argv[1], "-q") == 0)) {
   159         verbose = SDL_FALSE;
   160     }
   161     if (verbose) {
   162         printf ("This system is running %s\n",
   163 #if __AIX__
   164                 "AIX"
   165 #elif __AMIGA__
   166                 "AmigaOS"
   167 #elif __BEOS__
   168                 "BeOS"
   169 #elif __BSDI__
   170                 "BSDI"
   171 #elif __DREAMCAST__
   172                 "Dreamcast"
   173 #elif __FREEBSD__
   174                 "FreeBSD"
   175 #elif __HPUX__
   176                 "HP-UX"
   177 #elif __IRIX__
   178                 "Irix"
   179 #elif __LINUX__
   180                 "Linux"
   181 #elif __MINT__
   182                 "Atari MiNT"
   183 #elif __MACOS__
   184                 "MacOS Classic"
   185 #elif __MACOSX__
   186                 "Mac OS X"
   187 #elif __NETBSD__
   188                 "NetBSD"
   189 #elif __OPENBSD__
   190                 "OpenBSD"
   191 #elif __OS2__
   192                 "OS/2"
   193 #elif __OSF__
   194                 "OSF/1"
   195 #elif __QNXNTO__
   196                 "QNX Neutrino"
   197 #elif __RISCOS__
   198                 "RISC OS"
   199 #elif __SOLARIS__
   200                 "Solaris"
   201 #elif __WIN32__
   202 #ifdef _WIN32_WCE
   203                 "Windows CE"
   204 #else
   205                 "Windows"
   206 #endif
   207 #else
   208                 "an unknown operating system! (see SDL_platform.h)"
   209 #endif
   210             );
   211     }
   212 
   213     status += TestTypes (verbose);
   214     status += TestEndian (verbose);
   215     status += TestCPUInfo (verbose);
   216     return status;
   217 }