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/*
* AdPlay/UNIX - OPL2 audio player
* Copyright (C) 2001 - 2003 Simon Peter <dn.tlp@gmx.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <iostream>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <libbinio/binwrap.h>
#include <libbinio/binfile.h>
#include "defines.h"
#include "disk.h"
#define BUFSIZE 512
DiskWriter::DiskWriter(Copl *nopl, const char *filename, unsigned char nbits,
unsigned char nchannels, unsigned long nfreq)
: EmuPlayer(nopl, nbits, nchannels, nfreq, BUFSIZE), f(0), samplesize(0)
{
if(!filename) {
message(MSG_ERROR, "no output filename specified");
exit(EXIT_FAILURE);
}
// If filename is '-', output to stdout
if(strcmp(filename, "-"))
f = new binofstream(filename);
else
f = new binowstream(&std::cout); // not very good to mix cout with stdout
if(!f || f->error()) {
message(MSG_ERROR, "cannot open file for output -- %s", filename);
if(f) delete f;
exit(EXIT_FAILURE);
}
f->setFlag(binio::BigEndian, false);
// Write Microsoft RIFF WAVE header
f->writeString("RIFF", 4); f->writeInt(36, 4); f->writeString("WAVEfmt ", 8);
f->writeInt(16, 4); f->writeInt(1, 2); f->writeInt(nchannels, 2);
f->writeInt(nfreq, 4); f->writeInt(nfreq * getsampsize(), 4);
f->writeInt(getsampsize(), 2); f->writeInt(nbits, 2);
f->writeString("data", 4); f->writeInt(0, 4);
}
DiskWriter::~DiskWriter()
{
if(!f) return;
if(samplesize % 2) { // Wave data must end on an even byte boundary
f->writeInt(0, 1);
samplesize++;
}
// Write file sizes
f->seek(40); f->writeInt(samplesize, 4);
samplesize += 36; // make absolute filesize (add header size)
f->seek(4); f->writeInt(samplesize, 4);
// end disk writing
delete f;
}
void DiskWriter::output(const void *buf, unsigned long size)
{
char *b = (char *)buf;
unsigned long i, ssize = getsampsize();
for(i = 0; i < size; i += ssize)
switch(ssize) {
case 1: f->writeInt(*(b + i), 1); break;
case 2: f->writeInt(*(short *)(b + i), 2); break;
case 4: f->writeInt(*(long *)(b + i), 4); break;
}
samplesize += size;
}
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