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/*====================================================================*
- 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.
*====================================================================*/
/*
* rotateorthtest1.c
*
* Tests and timings for 90 and 180 degree rotations
* rotateorthtest1 filein fileout [direction]
* where
* direction = 1 for cw; -1 for ccw
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
#define NTIMES 10
main(int argc,
char **argv)
{
l_int32 i, w, h, dir;
PIX *pixs, *pixd, *pixt;
l_float32 pops;
char *filein, *fileout;
static char mainName[] = "rotateorthtest1";
if (argc != 3 && argc != 4)
exit(ERROR_INT(" Syntax: rotateorthtest1 filein fileout [direction]",
mainName, 1));
filein = argv[1];
fileout = argv[2];
if (argc == 4)
dir = atoi(argv[3]);
else
dir = 1;
if ((pixs = pixRead(filein)) == NULL)
exit(ERROR_INT("pix not made", mainName, 1));
/* Do a single operation */
#if 1
pixd = pixRotate90(pixs, dir);
#elif 0
pixd = pixRotate180(NULL, pixs);
#elif 0
pixd = pixRotateLR(NULL, pixs);
#elif 0
pixd = pixRotateTB(NULL, pixs);
#endif
/* Time rotate 90, allocating & destroying each time */
#if 0
startTimer();
w = pixGetWidth(pixs);
h = pixGetHeight(pixs);
for (i = 0; i < NTIMES; i++) {
pixd = pixRotate90(pixs, dir);
pixDestroy(&pixd);
}
pops = (l_float32)(w * h * NTIMES) / stopTimer();
fprintf(stderr, "MPops for 90 rotation: %7.3f\n", pops / 1000000.);
pixd = pixRotate90(pixs, dir);
#endif
/* Time rotate 180, with no alloc/destroy */
#if 0
startTimer();
w = pixGetWidth(pixs);
h = pixGetHeight(pixs);
pixd = pixCreateTemplate(pixs);
for (i = 0; i < NTIMES; i++)
pixRotate180(pixd, pixs);
pops = (l_float32)(w * h * NTIMES) / stopTimer();
fprintf(stderr, "MPops for 180 rotation: %7.3f\n", pops / 1000000.);
#endif
/* Test rotate 180 not in-place */
#if 0
pixt = pixRotate180(NULL, pixs);
pixd = pixRotate180(NULL, pixt);
pixEqual(pixs, pixd, &eq);
if (eq) fprintf(stderr, "2 rots gives I\n");
else fprintf(stderr, "2 rots fail to give I\n");
pixDestroy(&pixt);
#endif
/* Test rotate 180 in-place */
#if 0
pixd = pixCopy(NULL, pixs);
pixRotate180(pixd, pixd);
pixRotate180(pixd, pixd);
pixEqual(pixs, pixd, &eq);
if (eq) fprintf(stderr, "2 rots gives I\n");
else fprintf(stderr, "2 rots fail to give I\n");
#endif
/* Mix rotate 180 with LR/TB */
#if 0
pixd = pixRotate180(NULL, pixs);
pixRotateLR(pixd, pixd);
pixRotateTB(pixd, pixd);
pixEqual(pixs, pixd, &eq);
if (eq) fprintf(stderr, "180 rot OK\n");
else fprintf(stderr, "180 rot error\n");
#endif
if (pixGetDepth(pixd) < 8)
pixWrite(fileout, pixd, IFF_PNG);
else
pixWrite(fileout, pixd, IFF_JFIF_JPEG);
pixDestroy(&pixs);
pixDestroy(&pixd);
exit(0);
}
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