/*!
* pixaExtendArray()
*
* Input: pixa
* Return: 0 if OK; 1 on error
*
* Notes:
* (1) Doubles the size of the pixa and boxa ptr arrays.
*/
l_int32
pixaExtendArray(PIXA *pixa)
{
PROCNAME("pixaExtendArray");
if (!pixa)
return ERROR_INT("pixa not defined", procName, 1);
return pixaExtendArrayToSize(pixa, 2 * pixa->nalloc);
}
int main(int argc,
char **argv) {
const char *name;
l_int32 i, n;
BOX *box;
PIX *pix0, *pix1, *pixd;
PIXA *pixa;
SARRAY *sa1, *sa2, *sa3, *sa4;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
/* ---------------- Find all the jpg and tif images --------------- */
sa1 = getSortedPathnamesInDirectory(".", ".jpg", 0, 0);
sa2 = getSortedPathnamesInDirectory(".", ".tif", 0, 0);
sa3 = sarraySelectByRange(sa1, 0, 9);
sa4 = sarraySelectByRange(sa2, 0, 9);
sarrayConcatenate(sa3, sa4);
n = sarrayGetCount(sa3);
sarrayDestroy(&sa1);
sarrayDestroy(&sa2);
sarrayDestroy(&sa4);
/* ---------------- Use replace to fill up a pixa -------------------*/
pixa = pixaCreate(1);
pixaExtendArrayToSize(pixa, n);
if ((pix0 = pixRead("marge.jpg")) == NULL)
rp->success = FALSE;
pix1 = pixScaleToSize(pix0, 144, 108); /* scale 0.25 */
pixDestroy(&pix0);
pixaInitFull(pixa, pix1, NULL); /* fill it up */
pixd = pixaDisplayTiledInRows(pixa, 32, 1000, 1.0, 0, 25, 2);
pixDisplayWithTitle(pixd, 100, 100, NULL, rp->display);
pixWrite("/tmp/regout/pix1.jpg", pixd, IFF_JFIF_JPEG);
pixDestroy(&pix1);
pixDestroy(&pixd);
/* ---------------- And again with jpgs and tifs -------------------*/
for (i = 0; i < n; i++) {
name = sarrayGetString(sa3, i, L_NOCOPY);
if ((pix0 = pixRead(name)) == NULL)
rp->success = FALSE;
pix1 = pixScaleToSize(pix0, 144, 108);
pixaReplacePix(pixa, i, pix1, NULL);
pixDestroy(&pix0);
}
pixd = pixaDisplayTiledInRows(pixa, 32, 1000, 1.0, 0, 25, 2);
pixDisplayWithTitle(pixd, 400, 100, NULL, rp->display);
pixWrite("/tmp/regout/pix2.jpg", pixd, IFF_JFIF_JPEG);
pixDestroy(&pixd);
/* ---------------- And again, reversing the order ------------------*/
box = boxCreate(0, 0, 0, 0);
pixaInitFull(pixa, NULL, box);
boxDestroy(&box);
for (i = 0; i < n; i++) {
name = sarrayGetString(sa3, i, L_NOCOPY);
if ((pix0 = pixRead(name)) == NULL)
rp->success = FALSE;
pix1 = pixScaleToSize(pix0, 144, 108);
pixaReplacePix(pixa, n - 1 - i, pix1, NULL);
pixDestroy(&pix0);
}
pixd = pixaDisplayTiledInRows(pixa, 32, 1000, 1.0, 0, 25, 2);
pixDisplayWithTitle(pixd, 700, 100, NULL, rp->display);
pixWrite("/tmp/regout/pix3.jpg", pixd, IFF_JFIF_JPEG);
pixDestroy(&pixd);
sarrayDestroy(&sa3);
pixaDestroy(&pixa);
return regTestCleanup(rp);
}
