/*====================================================================*
 -  Copyright (C) 2001 Leptonica.  All rights reserved.
 -  This software is distributed in the hope that it will be
 -  useful, but with NO WARRANTY OF ANY KIND.
 -  No author or distributor accepts responsibility to anyone for the
 -  consequences of using this software, or for whether it serves any
 -  particular purpose or works at all, unless he or she says so in
 -  writing.  Everyone is granted permission to copy, modify and
 -  redistribute this source code, for commercial or non-commercial
 -  purposes, with the following restrictions: (1) the origin of this
 -  source code must not be misrepresented; (2) modified versions must
 -  be plainly marked as such; and (3) this notice may not be removed
 -  or altered from any source or modified source distribution.
 *====================================================================*/

/*
 *   rasteropip_reg.c
 *
 *   Tests in-place operation using the general 2-image pixRasterop().
 *   The in-place operation works because there is no overlap
 *   between the src and dest rectangles.
 */

#include "allheaders.h"

main(int    argc,
char **argv)
{
l_int32       i, j;
PIX          *pixs, *pixt, *pixd;
L_REGPARAMS  *rp;

    if (regTestSetup(argc, argv, &rp))
        return 1;

    pixs = pixRead("test8.jpg");
    pixt = pixCopy(NULL, pixs);

        /* Copy, in-place and one COLUMN at a time, from the right
           side to the left side. */
    for (j = 0; j < 200; j++)
        pixRasterop(pixs, 20 + j, 20, 1, 250, PIX_SRC, pixs, 250 + j, 20);
    pixDisplayWithTitle(pixs, 50, 50, "in-place copy", rp->display);

        /* Copy, in-place and one ROW at a time, from the right
           side to the left side. */
    for (i = 0; i < 250; i++)
        pixRasterop(pixt, 20, 20 + i, 200, 1, PIX_SRC, pixt, 250, 20 + i);

        /* Test */
    regTestComparePix(rp, pixs, pixt);   /* 0 */
    pixDestroy(&pixs);
    pixDestroy(&pixt);

        /* Show the mirrored border, which uses the general
           pixRasterop() on an image in-place.  */
    pixs = pixRead("test8.jpg");
    pixt = pixRemoveBorder(pixs, 40);
    pixd = pixAddMirroredBorder(pixt, 40, 40, 40, 40);
    regTestWritePixAndCheck(rp, pixd, IFF_PNG);  /* 1 */
    pixDisplayWithTitle(pixd, 650, 50, "mirrored border", rp->display);
    pixDestroy(&pixs);
    pixDestroy(&pixt);
    pixDestroy(&pixd);
    return regTestCleanup(rp);
}
