static int writeASCII(QRcode *qrcode, const char *outfile, int invert)
{
FILE *fp;
unsigned char *row;
int x, y;
int realwidth;
char *buffer, *p;
int buffer_s;
char black = '#';
char white = ' ';
if(invert) {
black = ' ';
white = '#';
}
size = 1;
fp = openFile(outfile);
realwidth = (qrcode->width + margin * 2) * 2;
buffer_s = realwidth + 2;
buffer = (char *)malloc( buffer_s );
if(buffer == NULL) {
fprintf(stderr, "Failed to allocate memory.\n");
exit(EXIT_FAILURE);
}
/* top margin */
writeASCII_margin(fp, realwidth, buffer, buffer_s, invert);
/* data */
for(y=0; y<qrcode->width; y++) {
row = qrcode->data+(y*qrcode->width);
p = buffer;
memset(p, white, margin * 2);
p += margin * 2;
for(x=0; x<qrcode->width; x++) {
if(row[x]&0x1) {
*p++ = black;
*p++ = black;
} else {
*p++ = white;
*p++ = white;
}
}
memset(p, white, margin * 2);
p += margin * 2;
*p++ = '\n';
*p++ = '\0';
fputs( buffer, fp );
}
/* bottom margin */
writeASCII_margin(fp, realwidth, buffer, buffer_s, invert);
fclose(fp);
free(buffer);
return 0;
}
static QRimageResultType writeASCII(QRcode *qrcode, const char *outfile, int invert)
{
FILE *fp;
unsigned char *row;
int x, y;
int realwidth;
char *buffer, *p;
int buffer_s;
char black = '#';
char white = ' ';
if(invert) {
black = ' ';
white = '#';
}
fp = fopen(outfile, "wb");
if(fp == NULL) {
return QR_IMG_FAILED_CREATE_FILE;
}
realwidth = (qrcode->width + margin * 2) * 2;
buffer_s = realwidth + 2;
buffer = (char *)malloc( buffer_s );
if(buffer == NULL) {
return QR_IMG_FAILED_ALLOCATE_MEMORY;
}
/* top margin */
writeASCII_margin(fp, realwidth, buffer, buffer_s, invert);
/* data */
for(y=0; y<qrcode->width; y++) {
row = qrcode->data+(y*qrcode->width);
p = buffer;
memset(p, white, margin * 2);
p += margin * 2;
for(x=0; x<qrcode->width; x++) {
if(row[x]&0x1) {
*p++ = black;
*p++ = black;
} else {
*p++ = white;
*p++ = white;
}
}
memset(p, white, margin * 2);
p += margin * 2;
*p++ = '\n';
*p++ = '\0';
fputs( buffer, fp );
}
/* bottom margin */
writeASCII_margin(fp, realwidth, buffer, buffer_s, invert);
fclose(fp);
free(buffer);
return QR_IMG_SUCCESS;
}
