view test/testplatform.c @ 5172:ededa1ccf91c

Switched the SDL 1.2 compatibility to use the window surface, so it's fast even when there's no hardware acceleration available. This means that the YUV overlay now uses software, but that's okay since fast YUV code should be using the textures now anyway.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 03 Feb 2011 21:13:55 -0800
parents 0ec550f04bbc
children 6a65c1fc07af
line wrap: on
line source


#include <stdio.h>

#include "SDL.h"
#include "SDL_endian.h"
#include "SDL_cpuinfo.h"
#include "SDL_assert.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 = %u\n",
                   (unsigned int)sizeof(Uint8));
        ++error;
    }
    if (badsize(sizeof(Uint16), 2)) {
        if (verbose)
            printf("sizeof(Uint16) != 2, instead = %u\n",
                   (unsigned int)sizeof(Uint16));
        ++error;
    }
    if (badsize(sizeof(Uint32), 4)) {
        if (verbose)
            printf("sizeof(Uint32) != 4, instead = %u\n",
                   (unsigned int)sizeof(Uint32));
        ++error;
    }
#ifdef SDL_HAS_64BIT_TYPE
    if (badsize(sizeof(Uint64), 8)) {
        if (verbose)
            printf("sizeof(Uint64) != 8, instead = %u\n",
                   (unsigned int)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("CPU count: %d\n", SDL_GetCPUCount());
	printf("CPU cache line size: %d\n", SDL_GetCPUCacheLineSize());
        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
TestAssertions(SDL_bool verbose)
{
    SDL_assert(1);
    SDL_assert_release(1);
    SDL_assert_paranoid(1);
    SDL_assert(0 || 1);
    SDL_assert_release(0 || 1);
    SDL_assert_paranoid(0 || 1);

#if 0   /* enable this to test assertion failures. */
    SDL_assert_release(1 == 2);
    SDL_assert_release(5 < 4);
    SDL_assert_release(0 && "This is a test");
#endif

    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);
    status += TestAssertions(verbose);

    return status;
}