view test/testplatform.c @ 3566:07c8339c95c6

Fixed bug #905 Give the foreign window message proc more control over Windows events. This may need to be adjusted when we add the capability for the app to specify whether it wants SDL to handle input for the window or not.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 15 Dec 2009 09:20:10 +0000
parents 63d4517fc4ac
children 3427271a2d75
line wrap: on
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#include <stdio.h>

#include "SDL.h"
#include "SDL_endian.h"
#include "SDL_cpuinfo.h"

/*
 * Watcom C flags these as Warning 201: "Unreachable code" if you just
 *  compare them directly, so we push it through a function to keep the
 *  compiler quiet.  --ryan.
 */
static int
badsize(size_t sizeoftype, size_t hardcodetype)
{
    return sizeoftype != hardcodetype;
}

int
TestTypes(SDL_bool verbose)
{
    int error = 0;

    if (badsize(sizeof(Uint8), 1)) {
        if (verbose)
            printf("sizeof(Uint8) != 1, instead = %lu\n", sizeof(Uint8));
        ++error;
    }
    if (badsize(sizeof(Uint16), 2)) {
        if (verbose)
            printf("sizeof(Uint16) != 2, instead = %lu\n", sizeof(Uint16));
        ++error;
    }
    if (badsize(sizeof(Uint32), 4)) {
        if (verbose)
            printf("sizeof(Uint32) != 4, instead = %lu\n", sizeof(Uint32));
        ++error;
    }
#ifdef SDL_HAS_64BIT_TYPE
    if (badsize(sizeof(Uint64), 8)) {
        if (verbose)
            printf("sizeof(Uint64) != 8, instead = %lu\n", sizeof(Uint64));
        ++error;
    }
#else
    if (verbose) {
        printf("WARNING: No 64-bit datatype on this platform\n");
    }
#endif
    if (verbose && !error)
        printf("All data types are the expected size.\n");

    return (error ? 1 : 0);
}

int
TestEndian(SDL_bool verbose)
{
    int error = 0;
    Uint16 value = 0x1234;
    int real_byteorder;
    Uint16 value16 = 0xCDAB;
    Uint16 swapped16 = 0xABCD;
    Uint32 value32 = 0xEFBEADDE;
    Uint32 swapped32 = 0xDEADBEEF;
#ifdef SDL_HAS_64BIT_TYPE
    Uint64 value64, swapped64;
    value64 = 0xEFBEADDE;
    value64 <<= 32;
    value64 |= 0xCDAB3412;
    swapped64 = 0x1234ABCD;
    swapped64 <<= 32;
    swapped64 |= 0xDEADBEEF;
#endif

    if (verbose) {
        printf("Detected a %s endian machine.\n",
               (SDL_BYTEORDER == SDL_LIL_ENDIAN) ? "little" : "big");
    }
    if ((*((char *) &value) >> 4) == 0x1) {
        real_byteorder = SDL_BIG_ENDIAN;
    } else {
        real_byteorder = SDL_LIL_ENDIAN;
    }
    if (real_byteorder != SDL_BYTEORDER) {
        if (verbose) {
            printf("Actually a %s endian machine!\n",
                   (real_byteorder == SDL_LIL_ENDIAN) ? "little" : "big");
        }
        ++error;
    }
    if (verbose) {
        printf("Value 16 = 0x%X, swapped = 0x%X\n", value16,
               SDL_Swap16(value16));
    }
    if (SDL_Swap16(value16) != swapped16) {
        if (verbose) {
            printf("16 bit value swapped incorrectly!\n");
        }
        ++error;
    }
    if (verbose) {
        printf("Value 32 = 0x%X, swapped = 0x%X\n", value32,
               SDL_Swap32(value32));
    }
    if (SDL_Swap32(value32) != swapped32) {
        if (verbose) {
            printf("32 bit value swapped incorrectly!\n");
        }
        ++error;
    }
#ifdef SDL_HAS_64BIT_TYPE
    if (verbose) {
#ifdef _MSC_VER
        printf("Value 64 = 0x%I64X, swapped = 0x%I64X\n", value64,
               SDL_Swap64(value64));
#else
        printf("Value 64 = 0x%llX, swapped = 0x%llX\n", value64,
               SDL_Swap64(value64));
#endif
    }
    if (SDL_Swap64(value64) != swapped64) {
        if (verbose) {
            printf("64 bit value swapped incorrectly!\n");
        }
        ++error;
    }
#endif
    return (error ? 1 : 0);
}


int
TestCPUInfo(SDL_bool verbose)
{
    if (verbose) {
        printf("RDTSC %s\n", SDL_HasRDTSC()? "detected" : "not detected");
        printf("MMX %s\n", SDL_HasMMX()? "detected" : "not detected");
        printf("MMX Ext %s\n", SDL_HasMMXExt()? "detected" : "not detected");
        printf("3DNow %s\n", SDL_Has3DNow()? "detected" : "not detected");
        printf("3DNow Ext %s\n",
               SDL_Has3DNowExt()? "detected" : "not detected");
        printf("SSE %s\n", SDL_HasSSE()? "detected" : "not detected");
        printf("SSE2 %s\n", SDL_HasSSE2()? "detected" : "not detected");
        printf("AltiVec %s\n", SDL_HasAltiVec()? "detected" : "not detected");
    }
    return (0);
}

int
main(int argc, char *argv[])
{
    SDL_bool verbose = SDL_TRUE;
    int status = 0;

    if (argv[1] && (SDL_strcmp(argv[1], "-q") == 0)) {
        verbose = SDL_FALSE;
    }
    if (verbose) {
        printf("This system is running %s\n", SDL_GetPlatform());
    }

    status += TestTypes(verbose);
    status += TestEndian(verbose);
    status += TestCPUInfo(verbose);
    return status;
}