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/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
/*
* gifio_reg.c
*
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* This is the Leptonica regression test for lossless read/write
* I/O in gif format.
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*
* This tests reading and writing of images in gif format for
* varioius depths.
*
* The relative times for writing of gif and png are interesting.
*
* For 1 bpp:
*
* png writing is about 2x faster than gif writing, using giflib.
*
* For 32 bpp, using a 1 Mpix rgb image:
*
* png: Lossless: 1.16 sec (2.0 MB output file)
* Lossy: 0.43 sec, composed of:
* 0.22 sec (octree quant with dithering)
* 0.21 sec (to compress and write out)
*
* gif: Lossy: 0.34 sec, composed of:
* 0.22 sec (octree quant with dithering)
* 0.12 sec (to compress and write out)
* (note: no lossless mode; gif can't write out rgb)
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include <math.h>
#include "allheaders.h"
#if HAVE_LIBGIF || HAVE_LIBUNGIF
#include "gif_lib.h"
#endif /* HAVE_LIBGIF || HAVE_LIBUNGIF */
#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 void test_gif(const char *fname, PIXA *pixa, L_REGPARAMS *rp);
static l_int32 test_mem_gif(const char *fname, l_int32 index);
int main(int argc,
char **argv)
{
char buf[64];
l_int32 success;
PIX *pix;
PIXA *pixa;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
#if !HAVE_LIBGIF && !HAVE_LIBUNGIF
lept_stderr("gifio is not enabled\n"
"libgif or libungif are required for gifio_reg\n"
"See environ.h: #define HAVE_LIBGIF or HAVE_LIBUNGIF 1\n"
"See prog/Makefile: link in -lgif or -lungif\n\n");
regTestCleanup(rp);
return 0;
#endif /* abort */
/* 5.1+ and not 5.1.2 */
snprintf(buf, sizeof(buf), "%s_reg", rp->testname);
#if (GIFLIB_MAJOR < 5 || (GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 0))
L_ERROR("Require giflib-5.1 or later.\n", buf);
return 1;
#endif /* < 5.1 */
#if GIFLIB_MAJOR == 5 && GIFLIB_MINOR == 1 && GIFLIB_RELEASE == 2 /* 5.1.2 */
L_ERROR("Can't use giflib-5.1.2; suggest 5.1.3 or later.\n", buf);
return 1;
#endif /* 5.1.2 */
/* Set up for display output */
pixa = (rp->display) ? pixaCreate(0) : NULL;
lept_rmdir("lept/gif");
lept_mkdir("lept/gif");
/* ------------ Part 1: Test lossless r/w to file ------------*/
test_gif(FILE_1BPP, pixa, rp);
test_gif(FILE_2BPP, pixa, rp);
test_gif(FILE_4BPP, pixa, rp);
test_gif(FILE_8BPP_1, pixa, rp);
test_gif(FILE_8BPP_2, pixa, rp);
test_gif(FILE_8BPP_3, pixa, rp);
test_gif(FILE_16BPP, pixa, rp);
test_gif(FILE_32BPP, pixa, rp);
if (rp->success)
lept_stderr("\n ****** Success on lossless r/w to file *****\n\n");
else
lept_stderr("\n ***** Failure on at least one r/w to file ****\n\n");
if (rp->display) {
pix = pixaDisplayTiledAndScaled(pixa, 32, 450, 3, 0, 20, 2);
pixWrite("/tmp/lept/gif/giftest.jpg", pix, IFF_JFIF_JPEG);
pixDisplay(pix, 100, 100);
pixDestroy(&pix);
pixaDestroy(&pixa);
}
/* ------------ Part 2: Test lossless r/w to memory ------------ */
success = TRUE;
if (test_mem_gif(FILE_1BPP, 0)) success = FALSE;
if (test_mem_gif(FILE_2BPP, 1)) success = FALSE;
if (test_mem_gif(FILE_4BPP, 2)) success = FALSE;
if (test_mem_gif(FILE_8BPP_1, 3)) success = FALSE;
if (test_mem_gif(FILE_8BPP_2, 4)) success = FALSE;
if (test_mem_gif(FILE_8BPP_3, 5)) success = FALSE;
if (test_mem_gif(FILE_16BPP, 6)) success = FALSE;
if (test_mem_gif(FILE_32BPP, 7)) success = FALSE;
if (success)
lept_stderr("\n ****** Success on lossless r/w to memory *****\n\n");
else
lept_stderr("\n **** Failure on at least one r/w to memory ****\n\n");
/* Success only if all tests are passed */
if (rp->success == TRUE) rp->success = success;
return regTestCleanup(rp);
}
static void
test_gif(const char *fname,
PIXA *pixa,
L_REGPARAMS *rp)
{
char buf[256];
l_int32 same;
PIX *pixs, *pix1, *pix2;
pixs = pixRead(fname);
snprintf(buf, sizeof(buf), "/tmp/lept/gif/gifio-a.%d.gif", rp->index + 1);
pixWrite(buf, pixs, IFF_GIF);
pix1 = pixRead(buf);
snprintf(buf, sizeof(buf), "/tmp/lept/gif/gifio-b.%d.gif", rp->index + 1);
pixWrite(buf, pix1, IFF_GIF);
pix2 = pixRead(buf);
regTestWritePixAndCheck(rp, pix2, IFF_GIF);
pixEqual(pixs, pix2, &same);
if (!same && rp->index < 6) {
lept_stderr("Error for %s\n", fname);
rp->success = FALSE;
}
if (rp->display) {
lept_stderr(" depth: pixs = %d, pix1 = %d\n", pixGetDepth(pixs),
pixGetDepth(pix1));
pixaAddPix(pixa, pix2, L_CLONE);
}
pixDestroy(&pixs);
pixDestroy(&pix1);
pixDestroy(&pix2);
return;
}
/* Returns 1 on error */
static l_int32
test_mem_gif(const char *fname,
l_int32 index)
{
l_uint8 *data = NULL;
l_int32 same;
size_t size = 0;
PIX *pixs;
PIX *pixd = NULL;
if ((pixs = pixRead(fname)) == NULL) {
lept_stderr("Failure to read gif file: %s\n", fname);
return 1;
}
if (pixWriteMem(&data, &size, pixs, IFF_GIF)) {
lept_stderr("Mem gif write fail on image %d\n", index);
return 1;
}
if ((pixd = pixReadMem(data, size)) == NULL) {
lept_stderr("Mem gif read fail on image %d\n", index);
lept_free(data);
return 1;
}
pixEqual(pixs, pixd, &same);
pixDestroy(&pixs);
pixDestroy(&pixd);
lept_free(data);
if (!same && index < 6) {
lept_stderr("Mem gif write/read fail for file %s\n", fname);
return 1;
}
else
return 0;
}
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