test/testplatform.c
author Sam Lantinga <slouken@libsdl.org>
Fri, 24 Feb 2006 09:57:14 +0000
changeset 1424 7a610f25c12f
parent 1421 638da75f9ab8
child 1615 d5298e8f22b3
permissions -rw-r--r--
Updated MacOS Classic MPW build
     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 badsize(size_t sizeoftype, size_t hardcodetype)
    14 {
    15     return sizeoftype != hardcodetype;
    16 }
    17 
    18 int TestTypes(SDL_bool verbose)
    19 {
    20 	int error = 0;
    21 
    22 	if ( badsize(sizeof(Uint8), 1) ) {
    23 		if ( verbose )
    24 			printf("sizeof(Uint8) != 1, instead = %d\n",
    25 								sizeof(Uint8));
    26 		++error;
    27 	}
    28 	if ( badsize(sizeof(Uint16), 2) ) {
    29 		if ( verbose )
    30 			printf("sizeof(Uint16) != 2, instead = %d\n",
    31 								sizeof(Uint16));
    32 		++error;
    33 	}
    34 	if ( badsize(sizeof(Uint32), 4) ) {
    35 		if ( verbose )
    36 			printf("sizeof(Uint32) != 4, instead = %d\n",
    37 								sizeof(Uint32));
    38 		++error;
    39 	}
    40 #ifdef SDL_HAS_64BIT_TYPE
    41 	if ( badsize(sizeof(Uint64), 8) ) {
    42 		if ( verbose )
    43 			printf("sizeof(Uint64) != 8, instead = %d\n",
    44 								sizeof(Uint64));
    45 		++error;
    46 	}
    47 #else
    48 	if ( verbose ) {
    49 		printf("WARNING: No 64-bit datatype on this platform\n");
    50 	}
    51 #endif
    52 	if ( verbose && !error )
    53 		printf("All data types are the expected size.\n");
    54 
    55 	return( error ? 1 : 0 );
    56 }
    57 
    58 int TestEndian(SDL_bool verbose)
    59 {
    60 	int error = 0;
    61 	Uint16 value = 0x1234;
    62 	int real_byteorder;
    63 	Uint16 value16 = 0xCDAB;
    64 	Uint16 swapped16 = 0xABCD;
    65 	Uint32 value32 = 0xEFBEADDE;
    66 	Uint32 swapped32 = 0xDEADBEEF;
    67 #ifdef SDL_HAS_64BIT_TYPE
    68 	Uint64 value64, swapped64;
    69 	value64 = 0xEFBEADDE;
    70 	value64 <<= 32;
    71 	value64 |= 0xCDAB3412;
    72 	swapped64 = 0x1234ABCD;
    73 	swapped64 <<= 32;
    74 	swapped64 |= 0xDEADBEEF;
    75 #endif
    76 
    77 	if ( verbose ) {
    78 		printf("Detected a %s endian machine.\n",
    79 			(SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
    80 	}
    81 	if ( (*((char *)&value) >> 4) == 0x1 ) {
    82 		real_byteorder = SDL_BIG_ENDIAN;
    83 	} else {
    84 		real_byteorder = SDL_LIL_ENDIAN;
    85 	}
    86 	if ( real_byteorder != SDL_BYTEORDER ) {
    87 		if ( verbose ) {
    88 			printf("Actually a %s endian machine!\n",
    89 				(real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
    90 		}
    91 		++error;
    92 	}
    93 	if ( verbose ) {
    94 		printf("Value 16 = 0x%X, swapped = 0x%X\n", value16, 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, SDL_Swap32(value32));
   104 	}
   105 	if ( SDL_Swap32(value32) != swapped32 ) {
   106 		if ( verbose ) {
   107 			printf("32 bit value swapped incorrectly!\n");
   108 		}
   109 		++error;
   110 	}
   111 #ifdef SDL_HAS_64BIT_TYPE
   112 	if ( verbose ) {
   113 		printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64, SDL_Swap64(value64));
   114 	}
   115 	if ( SDL_Swap64(value64) != swapped64 ) {
   116 		if ( verbose ) {
   117 			printf("64 bit value swapped incorrectly!\n");
   118 		}
   119 		++error;
   120 	}
   121 #endif
   122 	return( error ? 1 : 0 );
   123 }
   124 
   125 
   126 int TestCPUInfo(SDL_bool verbose)
   127 {
   128 	if ( verbose ) {
   129 		printf("RDTSC %s\n", SDL_HasRDTSC() ? "detected" : "not detected");
   130 		printf("MMX %s\n", SDL_HasMMX() ? "detected" : "not detected");
   131 		printf("MMX Ext %s\n", SDL_HasMMXExt() ? "detected" : "not detected");
   132 		printf("3DNow %s\n", SDL_Has3DNow() ? "detected" : "not detected");
   133 		printf("3DNow Ext %s\n", SDL_Has3DNowExt() ? "detected" : "not detected");
   134 		printf("SSE %s\n", SDL_HasSSE() ? "detected" : "not detected");
   135 		printf("SSE2 %s\n", SDL_HasSSE2() ? "detected" : "not detected");
   136 		printf("AltiVec %s\n", SDL_HasAltiVec() ? "detected" : "not detected");
   137 	}
   138 	return(0);
   139 }
   140 
   141 int main(int argc, char *argv[])
   142 {
   143 	SDL_bool verbose = SDL_TRUE;
   144 	int status = 0;
   145 
   146 	if ( argv[1] && (SDL_strcmp(argv[1], "-q") == 0) ) {
   147 		verbose = SDL_FALSE;
   148 	}
   149 	if ( verbose ) {
   150 		printf("This system is running %s\n",
   151 #if __AIX__
   152 			"AIX"
   153 #elif __AMIGA__
   154 			"AmigaOS"
   155 #elif __BEOS__
   156 			"BeOS"
   157 #elif __BSDI__
   158 			"BSDI"
   159 #elif __DREAMCAST__
   160 			"Dreamcast"
   161 #elif __FREEBSD__
   162 			"FreeBSD"
   163 #elif __HPUX__
   164 			"HP-UX"
   165 #elif __IRIX__
   166 			"Irix"
   167 #elif __LINUX__
   168 			"Linux"
   169 #elif __MINT__
   170 			"Atari MiNT"
   171 #elif __MACOS__
   172 			"MacOS Classic"
   173 #elif __MACOSX__
   174 			"MacOS X"
   175 #elif __NETBSD__
   176 			"NetBSD"
   177 #elif __OPENBSD__
   178 			"OpenBSD"
   179 #elif __OS2__
   180 			"OS/2"
   181 #elif __OSF__
   182 			"OSF/1"
   183 #elif __QNXNTO__
   184 			"QNX Neutrino"
   185 #elif __RISCOS__
   186 			"RISC OS"
   187 #elif __SOLARIS__
   188 			"Solaris"
   189 #elif __WIN32__
   190 #ifdef _WIN32_WCE
   191 			"Windows CE"
   192 #else
   193 			"Windows"
   194 #endif
   195 #else
   196 			"an unknown operating system! (see SDL_platform.h)"
   197 #endif
   198 		);
   199 	}
   200 
   201 	status += TestTypes(verbose);
   202 	status += TestEndian(verbose);
   203 	status += TestCPUInfo(verbose);
   204 	return status;
   205 }