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/*
libdmtx - Data Matrix Encoding/Decoding Library
Copyright (C) 2008, 2009 Mike Laughton
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Contact: mike@dragonflylogic.com
*/
/* $Id: simple_test.c 726 2009-02-19 22:17:48Z mblaughton $ */
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <assert.h>
#include <dmtx.h>
int
main(int argc, char *argv[])
{
size_t width, height, bytesPerPixel;
unsigned char str[] = "30Q324343430794<OQQ";
unsigned char *pxl;
DmtxEncode *enc;
DmtxImage *img;
DmtxDecode *dec;
DmtxRegion *reg;
DmtxMessage *msg;
fprintf(stdout, "input: \"%s\"\n", str);
/* 1) ENCODE a new Data Matrix barcode image (in memory only) */
enc = dmtxEncodeCreate();
assert(enc != NULL);
dmtxEncodeDataMatrix(enc, strlen(str), str);
/* 2) COPY the new image data before releasing encoding memory */
width = dmtxImageGetProp(enc->image, DmtxPropWidth);
height = dmtxImageGetProp(enc->image, DmtxPropHeight);
bytesPerPixel = dmtxImageGetProp(enc->image, DmtxPropBytesPerPixel);
pxl = (unsigned char *)malloc(width * height * bytesPerPixel);
assert(pxl != NULL);
memcpy(pxl, enc->image->pxl, width * height * bytesPerPixel);
dmtxEncodeDestroy(&enc);
/* 3) DECODE the Data Matrix barcode from the copied image */
img = dmtxImageCreate(pxl, width, height, DmtxPack24bppRGB);
assert(img != NULL);
dec = dmtxDecodeCreate(img, 1);
assert(dec != NULL);
reg = dmtxRegionFindNext(dec, NULL);
if(reg != NULL) {
msg = dmtxDecodeMatrixRegion(dec, reg, DmtxUndefined);
if(msg != NULL) {
fputs("output: \"", stdout);
fwrite(msg->output, sizeof(unsigned char), msg->outputIdx, stdout);
fputs("\"\n", stdout);
dmtxMessageDestroy(&msg);
}
dmtxRegionDestroy(®);
}
dmtxDecodeDestroy(&dec);
dmtxImageDestroy(&img);
free(pxl);
exit(0);
}
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