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/* This file is part of dvi2bitmap; see README for copyrights and licence */
#include <config.h>
#include "Bitmap.h"
#include "XBMBitmap.h"
//#include <iostream> // debug code writes to cerr
#if HAVE_CSTD_INCLUDE
# include <cstdio>
# include <cctype>
# if CCTYPE_IN_STD
using std::isalnum;
# endif
#else
# include <stdio.h>
# include <ctype.h>
#endif
XBMBitmap::XBMBitmap (const int w, const int h)
: BitmapImage (w, h)
{
}
XBMBitmap::~XBMBitmap ()
{
}
void XBMBitmap::write (const string filename)
{
FILE *op;
if ((op = fopen (filename.c_str(), "w")) == NULL)
throw BitmapError ("can't open XBM file"+filename+" to write");
size_t dotpos = filename.find_last_of('.');
size_t seppos = filename.find_last_of(FSPATH_SEP);
if (seppos == string::npos) seppos = 0;
if (dotpos == string::npos) dotpos = filename.length();
string fnroot_str = "";
for (unsigned int charno=(unsigned int)seppos; charno<dotpos; charno++)
fnroot_str += (isalnum(filename[charno]) ? filename[charno] : '_');
const char *fnroot = fnroot_str.c_str();
fprintf (op, "#define %s_width %d\n", fnroot, w_);
fprintf (op, "#define %s_height %d\n", fnroot, h_);
fprintf (op, "static unsigned char %s_bits[] = {\n", fnroot);
for (int row=0; row<h_; row++)
{
Byte b = 0;
Byte bitno = 0;
const Byte *p = &bitmap_[row*w_];
for (int col=0; col<w_; col++)
{
if (*p++)
b |= static_cast<Byte>(1<<bitno);
if (bitno == 7)
{
fprintf (op, "0x%02x, ", b);
b = 0;
bitno = 0;
}
else
bitno++;
}
if (bitno != 0)
fprintf (op, "0x%02x, ", static_cast<unsigned int>(b));
fprintf (op, "\n");
}
fprintf (op, "};\n");
fclose (op);
}
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