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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 Alexandre Bourget
*
* Plugin to transform a Rockbox produced m3u playlist into something
* understandable by the picky original iRiver firmware.
*
* Based on sort.c by the Rockbox team.
*
* 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
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "plugin.h"
ssize_t buf_size;
static char *filename;
static int readsize;
static char *stringbuffer;
static char crlf[2] = "\r\n";
int read_buffer(int offset)
{
int fd;
fd = rb->open(filename, O_RDONLY);
if(fd < 0)
return 10 * fd - 1;
/* Fill the buffer from the file */
rb->lseek(fd, offset, SEEK_SET);
readsize = rb->read(fd, stringbuffer, buf_size);
rb->close(fd);
if(readsize < 0)
return readsize * 10 - 2;
if(readsize == buf_size)
return buf_size; /* File too big */
return 0;
}
static int write_file(void)
{
char tmpfilename[MAX_PATH+1];
int fd;
int rc;
char *buf_ptr;
char *str_begin;
/* Create a temporary file */
rb->snprintf(tmpfilename, MAX_PATH+1, "%s.tmp", filename);
fd = rb->creat(tmpfilename, 0666);
if(fd < 0)
return 10 * fd - 1;
/* Let's make sure it always writes CR/LF and not only LF */
buf_ptr = stringbuffer;
str_begin = stringbuffer;
do {
/* Transform slashes into backslashes */
if(*buf_ptr == '/')
*buf_ptr = '\\';
if((*buf_ptr == '\r') || (*buf_ptr == '\n')) {
/* We have no complete string ? It's only a leading \n or \r ? */
if (!str_begin)
continue;
/* Terminate string */
*buf_ptr = 0;
/* Write our new string */
rc = rb->write(fd, str_begin, rb->strlen(str_begin));
if(rc < 0) {
rb->close(fd);
return 10 * rc - 2;
}
/* Write CR/LF */
rc = rb->write(fd, crlf, 2);
if(rc < 0) {
rb->close(fd);
return 10 * rc - 3;
}
/* Reset until we get a new line */
str_begin = NULL;
}
else {
/* We start a new line here */
if (!str_begin)
str_begin = buf_ptr;
}
/* Next char, until ... */
} while(buf_ptr++ < stringbuffer + readsize);
rb->close(fd);
/* Remove the original file */
rc = rb->remove(filename);
if(rc < 0) {
return 10 * rc - 4;
}
/* Replace the old file with the new */
rc = rb->rename(tmpfilename, filename);
if(rc < 0) {
return 10 * rc - 5;
}
return 0;
}
enum plugin_status plugin_start(const void* parameter)
{
char *buf;
int rc;
int i;
if(!parameter) return PLUGIN_ERROR;
filename = (char *)parameter;
buf = rb->plugin_get_audio_buffer((size_t *)&buf_size); /* start munching memory */
stringbuffer = buf;
FOR_NB_SCREENS(i)
rb->screens[i]->clear_display();
rb->splash(0, "Converting...");
rc = read_buffer(0);
FOR_NB_SCREENS(i)
rb->screens[i]->clear_display();
if(rc == 0) {
rb->splash(0, "Writing...");
rc = write_file();
FOR_NB_SCREENS(i)
rb->screens[i]->clear_display();
if(rc < 0) {
rb->splashf(HZ, "Can't write file: %d", rc);
} else {
rb->splash(HZ, "Done");
}
} else {
if(rc < 0) {
rb->splashf(HZ, "Can't read file: %d", rc);
} else {
rb->splash(HZ, "The file is too big");
}
}
return PLUGIN_OK;
}
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