为什么SDL_DisplayFormat会崩溃？

Question

我在探测后将其缩小到SDL_DisplayFormat。我在Windows机器上用g++ -o test.exe test.cpp -lmingw32 -lSDLmain -lSDL -lSDL2_image编译，使用msys，并运行可执行文件;然后echo $?返回3 ...

int main( int argc, char **args ) {
    int status = SDL_Init( SDL_INIT_EVERYTHING );
    if ( status == -1 ) return 4;

    screen = SDL_SetVideoMode( W_WIDTH, W_HEIGHT, BPP, SDL_SWSURFACE );
    if ( screen == NULL ) return 44;

    SDL_Surface *loaded_surface = IMG_Load( "./res/figure.png" );
    if ( loaded_surface == NULL ) return 444;

    SDL_Surface *background = SDL_DisplayFormat( loaded_surface );
    return 5;
    if ( background == NULL ) return 4444;

    SDL_FreeSurface( loaded_surface );

    SDL_BlitSurface( background, NULL, screen, NULL );

    SDL_Flip( screen );
    SDL_Delay( 2000 );

    return 0;
}

Answer 1

如上所述：can i use SDL-1.2.15 with SDL2-image extension?

SDL2_Image与SDL 1.x不兼容，您应该升级到SDL 2。