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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.
*====================================================================*/
/*
* rotate_reg.c
*
* Regression test for rotation by shear and area mapping.
* Displays many images to the screen.
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
#define BINARY_IMAGE "test1.png"
#define GRAYSCALE_IMAGE "test8.jpg"
#define FOUR_BPP_IMAGE "weasel4.16g.png"
#define COLORMAP_IMAGE "dreyfus8.png"
#define RGB_IMAGE "marge.jpg"
static const l_int32 MODSIZE = 5; /* set to 5 for display */
static const l_float32 ANGLE1 = 3.14159265 / 12.;
static const l_float32 ANGLE2 = 3.14159265 / 120.;
static const l_int32 NTIMES = 24;
void rotateTest(PIX *pixs, PIXA *pixa, l_int32 reduction);
main(int argc,
char **argv)
{
PIX *pixs, *pixd;
PIXA *pixa;
static char mainName[] = "rotate_reg";
if (argc != 1)
exit(ERROR_INT(" Syntax: rotate_reg", mainName, 1));
pixa = pixaCreate(0);
fprintf(stderr, "Test binary image:\n");
pixs = pixRead(BINARY_IMAGE);
rotateTest(pixs, pixa, 1);
pixDestroy(&pixs);
fprintf(stderr, "Test 4 bpp colormapped image:\n");
pixs = pixRead(FOUR_BPP_IMAGE);
rotateTest(pixs, pixa, 1);
pixDestroy(&pixs);
fprintf(stderr, "Test grayscale image:\n");
pixs = pixRead(GRAYSCALE_IMAGE);
rotateTest(pixs, pixa, 1);
pixDestroy(&pixs);
fprintf(stderr, "Test colormap image:\n");
pixs = pixRead(COLORMAP_IMAGE);
rotateTest(pixs, pixa, 1);
pixDestroy(&pixs);
fprintf(stderr, "Test rgb image:\n");
pixs = pixRead(RGB_IMAGE);
rotateTest(pixs, pixa, 1);
pixDestroy(&pixs);
pixd = pixaDisplay(pixa, 0, 0);
pixDisplay(pixd, 100, 100);
pixWrite("junkrotate.jpg", pixd, IFF_JFIF_JPEG);
pixDestroy(&pixd);
pixaDestroy(&pixa);
return 0;
}
void
rotateTest(PIX *pixs,
PIXA *pixa,
l_int32 reduction)
{
l_int32 w, h, d, i;
PIX *pixt, *pixd1, *pixd2, *pixd3, *pixd4;
PIXCMAP *cmap;
PROCNAME("rotateTest");
pixd3 = pixd4 = NULL;
pixGetDimensions(pixs, &w, &h, &d);
cmap = pixGetColormap(pixs);
pixd1 = pixRotate(pixs, ANGLE1, L_ROTATE_SHEAR, L_BRING_IN_WHITE, w, h);
for (i = 1; i < NTIMES; i++) {
if ((i % MODSIZE) == 0) {
if (i == MODSIZE)
pixSaveTiled(pixd1, pixa, reduction, 1, 20, 32);
else
pixSaveTiled(pixd1, pixa, reduction, 0, 20, 32);
}
pixt = pixRotate(pixd1, ANGLE1, L_ROTATE_SHEAR,
L_BRING_IN_WHITE, w, h);
pixDestroy(&pixd1);
pixd1 = pixt;
}
pixd2 = pixRotate(pixs, ANGLE1, L_ROTATE_AREA_MAP, L_BRING_IN_WHITE, w, h);
for (i = 1; i < NTIMES; i++) {
if ((i % MODSIZE) == 0) {
if (i == MODSIZE)
pixSaveTiled(pixd2, pixa, reduction, 1, 20, 32);
else
pixSaveTiled(pixd2, pixa, reduction, 0, 20, 32);
}
pixt = pixRotate(pixd2, ANGLE1, L_ROTATE_AREA_MAP,
L_BRING_IN_WHITE, w, h);
pixDestroy(&pixd2);
pixd2 = pixt;
}
pixd3 = pixRotateAMCorner(pixs, ANGLE2, L_BRING_IN_WHITE);
for (i = 1; i < NTIMES; i++) {
if ((i % MODSIZE) == 0) {
if (i == MODSIZE)
pixSaveTiled(pixd3, pixa, reduction, 1, 20, 32);
else
pixSaveTiled(pixd3, pixa, reduction, 0, 20, 32);
}
pixt = pixRotateAMCorner(pixd3, ANGLE2, L_BRING_IN_WHITE);
pixDestroy(&pixd3);
pixd3 = pixt;
}
if (d == 32) {
pixd4 = pixRotateAMColorFast(pixs, ANGLE1, 0xb0ffb000);
for (i = 1; i < NTIMES; i++) {
if ((i % MODSIZE) == 0) {
if (i == MODSIZE)
pixSaveTiled(pixd4, pixa, reduction, 1, 20, 32);
else
pixSaveTiled(pixd4, pixa, reduction, 0, 20, 32);
}
pixt = pixRotateAMColorFast(pixd4, ANGLE1, 0xb0ffb000);
pixDestroy(&pixd4);
pixd4 = pixt;
}
}
if (d == 1) {
pixWrite("junkbin1.png", pixd1, IFF_PNG);
pixWrite("junkbin2.png", pixd2, IFF_PNG);
pixWrite("junkbin3.png", pixd3, IFF_PNG);
} else if (d == 4) {
pixWrite("junk4bpp1.png", pixd1, IFF_PNG);
pixWrite("junk4bpp2.png", pixd2, IFF_PNG);
pixWrite("junk4bpp3.png", pixd3, IFF_PNG);
} else if (d == 8 && cmap) {
pixWrite("junkcmap1.png", pixd1, IFF_PNG);
pixWrite("junkcmap2.png", pixd2, IFF_PNG);
pixWrite("junkcmap3.png", pixd3, IFF_PNG);
} else if (d == 8 && !cmap) {
pixWrite("junkgray1.jpg", pixd1, IFF_JFIF_JPEG);
pixWrite("junkgray2.jpg", pixd2, IFF_JFIF_JPEG);
pixWrite("junkgray3.jpg", pixd3, IFF_JFIF_JPEG);
} else if (d == 32) {
pixWrite("junkrgb1.jpg", pixd1, IFF_JFIF_JPEG);
pixWrite("junkrgb2.jpg", pixd2, IFF_JFIF_JPEG);
pixWrite("junkrgb3.jpg", pixd3, IFF_JFIF_JPEG);
pixWrite("junkrgb4.jpg", pixd4, IFF_JFIF_JPEG);
}
pixDestroy(&pixd1);
pixDestroy(&pixd2);
pixDestroy(&pixd3);
pixDestroy(&pixd4);
return;
}
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