/* --------------------------------------------------------------------------
MusicBrainz -- The Internet music metadatabase
Copyright (C) 2000 Robert Kaye
Portions Copyright (C) 2000 Emusic.com
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 Street, Fifth Floor, Boston, MA 02110-1301 USA
$Id$
----------------------------------------------------------------------------*/
#include <windows.h>
#include <mmsystem.h>
#include <string.h>
#include <stdio.h>
#ifdef _MSC_VER
#define snprintf _snprintf
#endif
#include "discid/discid_private.h"
#define MB_DEFAULT_DEVICE "cdaudio"
int mb_disc_read_unportable_nt(mb_disc_private *disc, const char *device);
char *mb_disc_get_default_device_unportable(void) {
return MB_DEFAULT_DEVICE;
}
int mb_disc_read_unportable(mb_disc_private *disc, const char *device, unsigned int features) {
int i, ret, last_track;
char mci_command[128];
char mci_return[128];
char alias[128], device_str[128], error_msg[256];
if ( GetVersion() < 0x80000000 ) {
if ( strlen(device) == 0 || strcmp(device, "cdaudio") == 0 ) {
sprintf(device_str, "D:"); /* FIXME */
device = device_str;
}
return mb_disc_read_unportable_nt(disc, device);
}
if ( strlen(device) == 0 || strcmp(device, "cdaudio") == 0 ) {
sprintf(device_str, "cdaudio");
}
else {
snprintf(device_str, 128, "%s type cdaudio", device);
}
/*
* Prepare unique device alias.
*/
snprintf(alias, 128, "libdiscid_%u_%u", (unsigned)GetTickCount(),
(unsigned)GetCurrentThreadId());
/*
* Check number of CD audio devices
*/
snprintf(mci_command, 128, "sysinfo cdaudio quantity wait");
mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
if ( atoi(mci_return) <= 0 ) {
snprintf(disc->error_msg, MB_ERROR_MSG_LENGTH,
"no CD audio devices");
return 0;
}
/*
* Open specified CD audio device
*/
snprintf(mci_command, 128, "open %s shareable alias %s wait",
device_str, alias);
ret = mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
if ( ret != 0 ) {
mciGetErrorString(ret, error_msg, 256);
snprintf(disc->error_msg, MB_ERROR_MSG_LENGTH,
"cannot open device `%s': %s", device, error_msg);
return 0;
}
/*
* Find the numbers of the first track (usually 1) and the last track.
*/
snprintf(mci_command, 128, "status %s number of tracks wait", alias);
ret = mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
if ( ret != 0 ) {
mciGetErrorString(ret, error_msg, 256);
snprintf(disc->error_msg, MB_ERROR_MSG_LENGTH,
"cannot read number of tracks: %s", error_msg);
return 0;
}
last_track = atoi(mci_return);
disc->first_track_num = 1;
disc->last_track_num = last_track;
/*
* Set time format to MSF (the returned track positions will be in format
* mm:ss:ff, where mm is minutes, ss is seconds, and ff is frames).
*/
snprintf(mci_command, 128, "set %s time format msf wait", alias);
ret = mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
if ( ret != 0 ) {
mciGetErrorString(ret, error_msg, 256);
snprintf(disc->error_msg, MB_ERROR_MSG_LENGTH,
"cannot set time format: %s", error_msg);
return 0;
}
/*
* Read positions for all tracks in the CD.
*/
for (i = 1; i <= last_track; i++) {
snprintf(mci_command, 128, "status %s position track %d wait",
alias, i);
mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
disc->track_offsets[i] =
atoi(mci_return + 0) * 4500 +
atoi(mci_return + 3) * 75 +
atoi(mci_return + 6);
}
/*
* Read length of the last track and calculate length of the whole CD.
*/
snprintf(mci_command, 128, "status %s length track %d wait",
alias, last_track);
mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
disc->track_offsets[0] =
atoi(mci_return + 0) * 4500 +
atoi(mci_return + 3) * 75 +
atoi(mci_return + 6) +
disc->track_offsets[last_track] + 1;
/*
* Close the CD audio device
*/
snprintf(mci_command, 128, "close %s wait", alias);
mciSendString(mci_command, mci_return, sizeof(mci_return), NULL);
return 1;
}
/* EOF */