Function kernelCreate

deps/leptonica/src/kernel.c:105–134

------------------------------------------------------------------------* * Create / Destroy * *------------------------------------------------------------------------*/ ! * \brief kernelCreate() * * \param[in] height, width * \return kernel, or NULL on error * * * Notes: * (1) kernelCreate() initializes all values t

 * </pre>
 */
L_KERNEL *
kernelCreate(l_int32  height,
             l_int32  width)
{
l_uint64   size64;
L_KERNEL  *kel;

    PROCNAME("kernelCreate");

    if (width <= 0)
        return (L_KERNEL *)ERROR_PTR("width must be > 0", procName, NULL);
    if (height <= 0)
        return (L_KERNEL *)ERROR_PTR("height must be > 0", procName, NULL);

        /* Avoid overflow in malloc arg */
    size64 = (l_uint64)width * (l_uint64)height;
    if (size64 >= (1LL << 29)) {
        L_ERROR("requested width = %d, height = %d\n", procName, width, height);
        return (L_KERNEL *)ERROR_PTR("size >= 2^29", procName, NULL);
    }

    kel = (L_KERNEL *)LEPT_CALLOC(1, sizeof(L_KERNEL));
    kel->sy = height;
    kel->sx = width;
    if ((kel->data = create2dFloatArray(height, width)) == NULL) {
        LEPT_FREE(kel);
        return (L_KERNEL *)ERROR_PTR("data not allocated", procName, NULL);
    }
    return kel;
}


/*!