test/testplatform.c
author Sam Lantinga <slouken@libsdl.org>
Sat, 02 Jan 2016 10:10:34 -0800
changeset 9998 f67cf37e9cd4
parent 9619 b94b6d0bff0f
child 10564 46cfe31e501a
permissions -rw-r--r--
Updated copyright to 2016
     1 /*
     2   Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
     3 
     4   This software is provided 'as-is', without any express or implied
     5   warranty.  In no event will the authors be held liable for any damages
     6   arising from the use of this software.
     7 
     8   Permission is granted to anyone to use this software for any purpose,
     9   including commercial applications, and to alter it and redistribute it
    10   freely.
    11 */
    12 
    13 #include <stdio.h>
    14 
    15 #include "SDL.h"
    16 
    17 /*
    18  * Watcom C flags these as Warning 201: "Unreachable code" if you just
    19  *  compare them directly, so we push it through a function to keep the
    20  *  compiler quiet.  --ryan.
    21  */
    22 static int
    23 badsize(size_t sizeoftype, size_t hardcodetype)
    24 {
    25     return sizeoftype != hardcodetype;
    26 }
    27 
    28 int
    29 TestTypes(SDL_bool verbose)
    30 {
    31     int error = 0;
    32 
    33     if (badsize(sizeof(Uint8), 1)) {
    34         if (verbose)
    35             SDL_Log("sizeof(Uint8) != 1, instead = %u\n",
    36                    (unsigned int)sizeof(Uint8));
    37         ++error;
    38     }
    39     if (badsize(sizeof(Uint16), 2)) {
    40         if (verbose)
    41             SDL_Log("sizeof(Uint16) != 2, instead = %u\n",
    42                    (unsigned int)sizeof(Uint16));
    43         ++error;
    44     }
    45     if (badsize(sizeof(Uint32), 4)) {
    46         if (verbose)
    47             SDL_Log("sizeof(Uint32) != 4, instead = %u\n",
    48                    (unsigned int)sizeof(Uint32));
    49         ++error;
    50     }
    51     if (badsize(sizeof(Uint64), 8)) {
    52         if (verbose)
    53             SDL_Log("sizeof(Uint64) != 8, instead = %u\n",
    54                    (unsigned int)sizeof(Uint64));
    55         ++error;
    56     }
    57     if (verbose && !error)
    58         SDL_Log("All data types are the expected size.\n");
    59 
    60     return (error ? 1 : 0);
    61 }
    62 
    63 int
    64 TestEndian(SDL_bool verbose)
    65 {
    66     int error = 0;
    67     Uint16 value = 0x1234;
    68     int real_byteorder;
    69     Uint16 value16 = 0xCDAB;
    70     Uint16 swapped16 = 0xABCD;
    71     Uint32 value32 = 0xEFBEADDE;
    72     Uint32 swapped32 = 0xDEADBEEF;
    73     Uint64 value64, swapped64;
    74 
    75     value64 = 0xEFBEADDE;
    76     value64 <<= 32;
    77     value64 |= 0xCDAB3412;
    78     swapped64 = 0x1234ABCD;
    79     swapped64 <<= 32;
    80     swapped64 |= 0xDEADBEEF;
    81 
    82     if (verbose) {
    83         SDL_Log("Detected a %s endian machine.\n",
    84                (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
    85     }
    86     if ((*((char *) &value) >> 4) == 0x1) {
    87         real_byteorder = SDL_BIG_ENDIAN;
    88     } else {
    89         real_byteorder = SDL_LIL_ENDIAN;
    90     }
    91     if (real_byteorder != SDL_BYTEORDER) {
    92         if (verbose) {
    93             SDL_Log("Actually a %s endian machine!\n",
    94                    (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
    95         }
    96         ++error;
    97     }
    98     if (verbose) {
    99         SDL_Log("Value 16 = 0x%X, swapped = 0x%X\n", value16,
   100                SDL_Swap16(value16));
   101     }
   102     if (SDL_Swap16(value16) != swapped16) {
   103         if (verbose) {
   104             SDL_Log("16 bit value swapped incorrectly!\n");
   105         }
   106         ++error;
   107     }
   108     if (verbose) {
   109         SDL_Log("Value 32 = 0x%X, swapped = 0x%X\n", value32,
   110                SDL_Swap32(value32));
   111     }
   112     if (SDL_Swap32(value32) != swapped32) {
   113         if (verbose) {
   114             SDL_Log("32 bit value swapped incorrectly!\n");
   115         }
   116         ++error;
   117     }
   118     if (verbose) {
   119         SDL_Log("Value 64 = 0x%"SDL_PRIX64", swapped = 0x%"SDL_PRIX64"\n", value64,
   120                SDL_Swap64(value64));
   121     }
   122     if (SDL_Swap64(value64) != swapped64) {
   123         if (verbose) {
   124             SDL_Log("64 bit value swapped incorrectly!\n");
   125         }
   126         ++error;
   127     }
   128     return (error ? 1 : 0);
   129 }
   130 
   131 
   132 int
   133 TestCPUInfo(SDL_bool verbose)
   134 {
   135     if (verbose) {
   136         SDL_Log("CPU count: %d\n", SDL_GetCPUCount());
   137         SDL_Log("CPU cache line size: %d\n", SDL_GetCPUCacheLineSize());
   138         SDL_Log("RDTSC %s\n", SDL_HasRDTSC()? "detected" : "not detected");
   139         SDL_Log("AltiVec %s\n", SDL_HasAltiVec()? "detected" : "not detected");
   140         SDL_Log("MMX %s\n", SDL_HasMMX()? "detected" : "not detected");
   141         SDL_Log("3DNow! %s\n", SDL_Has3DNow()? "detected" : "not detected");
   142         SDL_Log("SSE %s\n", SDL_HasSSE()? "detected" : "not detected");
   143         SDL_Log("SSE2 %s\n", SDL_HasSSE2()? "detected" : "not detected");
   144         SDL_Log("SSE3 %s\n", SDL_HasSSE3()? "detected" : "not detected");
   145         SDL_Log("SSE4.1 %s\n", SDL_HasSSE41()? "detected" : "not detected");
   146         SDL_Log("SSE4.2 %s\n", SDL_HasSSE42()? "detected" : "not detected");
   147         SDL_Log("AVX %s\n", SDL_HasAVX()? "detected" : "not detected");
   148         SDL_Log("System RAM %d MB\n", SDL_GetSystemRAM());
   149     }
   150     return (0);
   151 }
   152 
   153 int
   154 TestAssertions(SDL_bool verbose)
   155 {
   156     SDL_assert(1);
   157     SDL_assert_release(1);
   158     SDL_assert_paranoid(1);
   159     SDL_assert(0 || 1);
   160     SDL_assert_release(0 || 1);
   161     SDL_assert_paranoid(0 || 1);
   162 
   163 #if 0   /* enable this to test assertion failures. */
   164     SDL_assert_release(1 == 2);
   165     SDL_assert_release(5 < 4);
   166     SDL_assert_release(0 && "This is a test");
   167 #endif
   168 
   169     {
   170         const SDL_AssertData *item = SDL_GetAssertionReport();
   171         while (item) {
   172             SDL_Log("'%s', %s (%s:%d), triggered %u times, always ignore: %s.\n",
   173                 item->condition, item->function, item->filename,
   174                 item->linenum, item->trigger_count,
   175                 item->always_ignore ? "yes" : "no");
   176             item = item->next;
   177         }
   178     }
   179     return (0);
   180 }
   181 
   182 int
   183 main(int argc, char *argv[])
   184 {
   185     SDL_bool verbose = SDL_TRUE;
   186     int status = 0;
   187 
   188     /* Enable standard application logging */
   189     SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO);
   190 
   191     if (argv[1] && (SDL_strcmp(argv[1], "-q") == 0)) {
   192         verbose = SDL_FALSE;
   193     }
   194     if (verbose) {
   195         SDL_Log("This system is running %s\n", SDL_GetPlatform());
   196     }
   197 
   198     status += TestTypes(verbose);
   199     status += TestEndian(verbose);
   200     status += TestCPUInfo(verbose);
   201     status += TestAssertions(verbose);
   202 
   203     return status;
   204 }