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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.
*====================================================================*/
/*
* ioformats_reg.c
*
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* This is the primary Leptonica regression test for lossless
* read/write I/O to standard image files (png, tiff, bmp, etc.)
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*
* This tests reading and writing of images in different formats
* It should work properly on input images of any depth, with
* and without colormaps.
*
* The first part of the test works by doing a write/read and
* testing the result for equality. We only test the lossless
* file formats, with pix of various depths, both with and
* without colormaps. Because jpeg works fine on grayscale
* and rgb, there is no need for explicit tests on jpeg
* compression here.
*
* The second part tests all different tiff compressions, for
* read/write that is backed both by file and by memory.
* For r/w to file, it is actually redundant with the first part.)
*/
#include <stdio.h>
#include <stdlib.h>
#include "allheaders.h"
#define BMP_FILE "test1.bmp"
#define FILE_1BPP "feyn.tif"
#define FILE_2BPP "weasel2.4g.png"
#define FILE_4BPP "weasel4.16c.png"
#define FILE_8BPP_1 "dreyfus8.png"
#define FILE_8BPP_2 "weasel8.240c.png"
#define FILE_8BPP_3 "test8.jpg"
#define FILE_16BPP "test16.tif"
#define FILE_32BPP "marge.jpg"
static l_int32 testcomp(const char *filename, PIX *pix, l_int32 comptype);
static l_int32 testcomp_mem(PIX *pixs, PIX **ppixt, l_int32 index,
l_int32 format);
static l_int32 test_writemem(PIX *pixs, l_int32 format, char *psfile);
main(int argc,
char **argv)
{
char psname[256];
l_uint8 *data;
l_int32 i, d, n, success, nbytes, same;
l_int32 w, h, bps, spp;
size_t size;
PIX *pix1, *pix2, *pix4, *pix8, *pix16, *pix32, *pix, *pixt;
PIXA *pixa;
static char mainName[] = "ioformats_reg";
if (argc != 1)
exit(ERROR_INT(" Syntax: ioformats_reg", mainName, 1));
/* --------- Part 1: Test all lossless formats for r/w to file ---------*/
success = TRUE;
fprintf(stderr, "Test bmp 1 bpp file:\n");
if (ioFormatTest(BMP_FILE)) success = FALSE;
fprintf(stderr, "\nTest other 1 bpp file:\n");
if (ioFormatTest(FILE_1BPP)) success = FALSE;
fprintf(stderr, "\nTest 2 bpp file:\n");
if (ioFormatTest(FILE_2BPP)) success = FALSE;
fprintf(stderr, "\nTest 4 bpp file:\n");
if (ioFormatTest(FILE_4BPP)) success = FALSE;
fprintf(stderr, "\nTest 8 bpp grayscale file with cmap:\n");
if (ioFormatTest(FILE_8BPP_1)) success = FALSE;
fprintf(stderr, "\nTest 8 bpp color file with cmap:\n");
if (ioFormatTest(FILE_8BPP_2)) success = FALSE;
fprintf(stderr, "\nTest 8 bpp file without cmap:\n");
if (ioFormatTest(FILE_8BPP_3)) success = FALSE;
fprintf(stderr, "\nTest 16 bpp file:\n");
if (ioFormatTest(FILE_16BPP)) success = FALSE;
fprintf(stderr, "\nTest 32 bpp file:\n");
if (ioFormatTest(FILE_32BPP)) success = FALSE;
if (success)
fprintf(stderr,
"\n ********** Success on all i/o format tests *********\n");
else
fprintf(stderr,
"\n ******* Failure on at least one i/o format test ******\n");
/* ------------------ Part 2: Test tiff r/w to file ------------------- */
fprintf(stderr, "\n\nTest tiff r/w and format extraction\n");
pixa = pixaCreate(6);
pix1 = pixRead(BMP_FILE);
pix2 = pixConvert1To2(NULL, pix1, 3, 0);
pix4 = pixConvert1To4(NULL, pix1, 15, 0);
pix16 = pixRead(FILE_16BPP);
fprintf(stderr, "Input format: %d\n", pixGetInputFormat(pix16));
pix8 = pixConvert16To8(pix16, 1);
pix32 = pixRead(FILE_32BPP);
pixaAddPix(pixa, pix1, L_INSERT);
pixaAddPix(pixa, pix2, L_INSERT);
pixaAddPix(pixa, pix4, L_INSERT);
pixaAddPix(pixa, pix8, L_INSERT);
pixaAddPix(pixa, pix16, L_INSERT);
pixaAddPix(pixa, pix32, L_INSERT);
n = pixaGetCount(pixa);
success = TRUE;
for (i = 0; i < n; i++) {
pix = pixaGetPix(pixa, i, L_CLONE);
d = pixGetDepth(pix);
fprintf(stderr, "%d bpp\n", d);
if (i == 0) { /* 1 bpp */
pixWrite("junkg3.tif", pix, IFF_TIFF_G3);
pixWrite("junkg4.tif", pix, IFF_TIFF_G4);
pixWrite("junkrle.tif", pix, IFF_TIFF_RLE);
pixWrite("junkpb.tif", pix, IFF_TIFF_PACKBITS);
if (testcomp("junkg3.tif", pix, IFF_TIFF_G3)) success = FALSE;
if (testcomp("junkg4.tif", pix, IFF_TIFF_G4)) success = FALSE;
if (testcomp("junkrle.tif", pix, IFF_TIFF_RLE)) success = FALSE;
if (testcomp("junkpb.tif", pix, IFF_TIFF_PACKBITS)) success = FALSE;
}
pixWrite("junklzw.tif", pix, IFF_TIFF_LZW);
pixWrite("junkzip.tif", pix, IFF_TIFF_ZIP);
pixWrite("junknon.tif", pix, IFF_TIFF);
if (testcomp("junklzw.tif", pix, IFF_TIFF_LZW)) success = FALSE;
if (testcomp("junkzip.tif", pix, IFF_TIFF_ZIP)) success = FALSE;
if (testcomp("junknon.tif", pix, IFF_TIFF)) success = FALSE;
pixDestroy(&pix);
}
if (success)
fprintf(stderr,
"\n ********** Success on tiff r/w to file *********\n");
else
fprintf(stderr,
"\n ******* Failure on at least one tiff r/w to file ******\n");
/* ------------------ Part 3: Test tiff r/w to memory ----------------- */
success = TRUE;
for (i = 0; i < n; i++) {
pix = pixaGetPix(pixa, i, L_CLONE);
d = pixGetDepth(pix);
fprintf(stderr, "%d bpp\n", d);
if (i == 0) { /* 1 bpp */
pixWriteMemTiff(&data, &size, pix, IFF_TIFF_G3);
nbytes = nbytesInFile("junkg3.tif");
fprintf(stderr, "nbytes = %d, size = %d\n", nbytes, size);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF_G3)) success = FALSE;
FREE(data);
pixWriteMemTiff(&data, &size, pix, IFF_TIFF_G4);
nbytes = nbytesInFile("junkg4.tif");
fprintf(stderr, "nbytes = %d, size = %d\n", nbytes, size);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF_G4)) success = FALSE;
readHeaderMemTiff(data, size, &w, &h, &bps, &spp, NULL, NULL);
fprintf(stderr, "(w,h,bps,spp) = (%d,%d,%d,%d)\n", w, h, bps, spp);
FREE(data);
pixWriteMemTiff(&data, &size, pix, IFF_TIFF_RLE);
nbytes = nbytesInFile("junkrle.tif");
fprintf(stderr, "nbytes = %d, size = %d\n", nbytes, size);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF_RLE)) success = FALSE;
FREE(data);
pixWriteMemTiff(&data, &size, pix, IFF_TIFF_PACKBITS);
nbytes = nbytesInFile("junkpb.tif");
fprintf(stderr, "nbytes = %d, size = %d\n", nbytes, size);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF_PACKBITS)) success = FALSE;
FREE(data);
}
pixWriteMemTiff(&data, &size, pix, IFF_TIFF_LZW);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF_LZW)) success = FALSE;
FREE(data);
pixWriteMemTiff(&data, &size, pix, IFF_TIFF_ZIP);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF_ZIP)) success = FALSE;
readHeaderMemTiff(data, size, &w, &h, &bps, &spp, NULL, NULL);
fprintf(stderr, "(w,h,bps,spp) = (%d,%d,%d,%d)\n", w, h, bps, spp);
FREE(data);
pixWriteMemTiff(&data, &size, pix, IFF_TIFF);
pixt = pixReadMemTiff(data, size, 0);
if (testcomp_mem(pix, &pixt, i, IFF_TIFF)) success = FALSE;
FREE(data);
pixDestroy(&pix);
}
if (success)
fprintf(stderr,
"\n ********** Success on tiff r/w to memory *********\n");
else
fprintf(stderr,
"\n ******* Failure on at least one tiff r/w to memory ******\n");
/* ---------------- Part 4: Test non-tiff r/w to memory ---------------- */
#ifndef _STANDARD_C_
pixDisplayWrite(NULL, -1);
success = TRUE;
for (i = 0; i < n; i++) {
pix = pixaGetPix(pixa, i, L_CLONE);
d = pixGetDepth(pix);
sprintf(psname, "junkps.%d", d);
fprintf(stderr, "%d bpp\n", d);
if (d != 16) {
if (test_writemem(pix, IFF_PNG, NULL)) success = FALSE;
if (test_writemem(pix, IFF_BMP, NULL)) success = FALSE;
}
if (test_writemem(pix, IFF_PNM, NULL)) success = FALSE;
if (test_writemem(pix, IFF_PS, psname)) success = FALSE;
if (d == 8 || d == 32)
if (test_writemem(pix, IFF_JFIF_JPEG, NULL)) success = FALSE;
pixDestroy(&pix);
}
if (success)
fprintf(stderr,
"\n ********** Success on non-tiff r/w to memory *********\n");
else
fprintf(stderr,
"\n ***** Failure on at least one non-tiff r/w to memory *****\n");
#endif /* ~_STANDARD_C_ */
system("gthumb junk_write_display* &");
pixaDestroy(&pixa);
/* ------------ Part 5: Test multipage tiff r/w to memory ------------ */
/* Make a multipage tiff file, and read it back into memory */
success = TRUE;
pix = pixRead("feyn.tif");
pixa = pixaSplitPix(pix, 3, 3, 0, 0);
for (i = 0; i < 9; i++) {
pixt = pixaGetPix(pixa, i, L_CLONE);
if (i == 0)
pixWriteTiff("junktiffmpage.tif", pixt, IFF_TIFF_G4, "w");
else
pixWriteTiff("junktiffmpage.tif", pixt, IFF_TIFF_G4, "a");
pixDestroy(&pixt);
}
data = arrayRead("junktiffmpage.tif", &nbytes);
pixaDestroy(&pixa);
/* Read the individual pages from memory to a pix */
pixa = pixaCreate(9);
for (i = 0; i < 9; i++) {
pixt = pixReadMemTiff(data, nbytes, i);
pixaAddPix(pixa, pixt, L_INSERT);
}
FREE(data);
/* Un-tile the pix in the pixa back to the original image */
pixt = pixaDisplayUnsplit(pixa, 3, 3, 0, 0);
pixaDestroy(&pixa);
/* Clip to foreground to remove any extra rows or columns */
pixClipToForeground(pix, &pix1, NULL);
pixClipToForeground(pixt, &pix2, NULL);
pixEqual(pix1, pix2, &same);
if (same)
fprintf(stderr,
"\n ******* Success on tiff multipage read from memory *******\n");
else
fprintf(stderr,
"\n ******* Failure on tiff multipage read from memory *******\n");
pixDestroy(&pix);
pixDestroy(&pixt);
pixDestroy(&pix1);
pixDestroy(&pix2);
exit(0);
}
/* Returns 1 on error */
static l_int32
testcomp(const char *filename,
PIX *pix,
l_int32 comptype)
{
l_int32 format, sameformat, sameimage;
FILE *fp;
PIX *pixt;
fp = fopen(filename, "r");
format = findFileFormat(fp);
sameformat = TRUE;
if (format != comptype) {
fprintf(stderr, "File %s has format %d, not comptype %d\n",
filename, format, comptype);
sameformat = FALSE;
}
fclose(fp);
pixt = pixRead(filename);
pixEqual(pix, pixt, &sameimage);
pixDestroy(&pixt);
if (!sameimage)
fprintf(stderr, "Write/read fail for file %s with format %d\n",
filename, format);
return (!sameformat || !sameimage);
}
/* Returns 1 on error */
static l_int32
testcomp_mem(PIX *pixs,
PIX **ppixt,
l_int32 index,
l_int32 format)
{
l_int32 sameimage;
PIX *pixt;
pixt = *ppixt;
pixEqual(pixs, pixt, &sameimage);
if (!sameimage)
fprintf(stderr, "Mem Write/read fail for file %s with format %d\n",
index, format);
pixDestroy(&pixt);
*ppixt = NULL;
return (!sameimage);
}
/* Returns 1 on error */
static l_int32
test_writemem(PIX *pixs,
l_int32 format,
char *psfile)
{
l_uint8 *data = NULL;
l_int32 same;
size_t size = 0;
PIX *pixd = NULL;
if (format == IFF_PS) {
pixWriteMemPS(&data, &size, pixs, NULL, 0, 1.0);
arrayWrite(psfile, "w", data, size);
FREE(data);
return 0;
}
if (pixWriteMem(&data, &size, pixs, format)) {
fprintf(stderr, "Mem write fail for format %d\n", format);
return 1;
}
if ((pixd = pixReadMem(data, size)) == NULL) {
fprintf(stderr, "Mem read fail for format %d\n", format);
FREE(data);
return 1;
}
if (format == IFF_JFIF_JPEG) {
fprintf(stderr, "jpeg size = %d\n", size);
pixDisplayWrite(pixd, 1);
same = TRUE;
}
else {
pixEqual(pixs, pixd, &same);
if (!same)
fprintf(stderr, "Mem write/read fail for format %d\n", format);
}
pixDestroy(&pixd);
FREE(data);
return (!same);
}
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