Exemplos de topow2 em C++ (Cpp)

Exemplo n.º 1

Arquivo: app-font.cpp Projeto: rlk/thumb

app::text::text(int w, int h) :
    data(0),
    x(0), y(0),
    inner_w(w),
    inner_h(h),
    outer_w(0),
    outer_h(0)
{
    outer_w = int(topow2((unsigned int) inner_w));
    outer_h = int(topow2((unsigned int) inner_h));

    if (outer_w && outer_h)
        data = ::glob->new_image(outer_w, outer_h);
}

Exemplo n.º 2

Arquivo: game.c Projeto: hadrianw/radmire

void
arrayresize(Array *array, size_t nmemb) {
    size_t nalloc = topow2(nmemb);
    if(nmemb < array->nmemb && array->nalloc > nalloc * 2)
        nalloc *= 2;
    array->ptr = realloc(array->ptr, nalloc * array->size);
    array->nalloc = nalloc;
    array->nmemb = nmemb;
}

Exemplo n.º 3

Arquivo: game.c Projeto: hadrianw/radmire

SDL_Surface*
pow2img(SDL_Surface *src) {
    if(ISPOW2(src->w) && ISPOW2(src->h))
        return src;
    SDL_SetAlpha(src, 0, SDL_ALPHA_OPAQUE);
    SDL_Surface *dst = NULL;
    dst = SDL_CreateRGBSurface(src->flags,
                               topow2(src->w), topow2(src->h),
                               src->format->BitsPerPixel,
                               src->format->Rmask,
                               src->format->Gmask,
                               src->format->Bmask,
                               src->format->Amask);
    if(!dst || SDL_BlitSurface(src, NULL, dst, NULL)) {
        SDL_FreeSurface(dst);
        return NULL;
    }
    return dst;

}