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rockbox/apps/plugins/lrcplayer.c
Andree Buschmann e14bda521d Fix some 'set but not used' warnings. 
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30565 a1c6a512-1295-4272-9138-f99709370657
2011-09-17 20:53:28 +00:00

2978 lines
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008-2009 Teruaki Kawashima
*
* 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"
#include "lib/playback_control.h"
#include "lib/configfile.h"
#include "lib/helper.h"
#include <ctype.h>
#define MAX_LINE_LEN 256
#define LRC_BUFFER_SIZE 0x3000 /* 12 kiB */
#if PLUGIN_BUFFER_SIZE >= 0x10000 /* no id3 support for low mem targets */
/* define this to read lyrics in id3 tag */
#define LRC_SUPPORT_ID3
#endif
/* define this to show debug info in menu */
/* #define LRC_DEBUG */
enum lrc_screen {
PLUGIN_OTHER = 0x200,
LRC_GOTO_MAIN,
LRC_GOTO_MENU,
LRC_GOTO_EDITOR,
};
struct lrc_word {
long time_start;
short count;
short width;
unsigned char *word;
};
struct lrc_brpos {
short count;
short width;
};
struct lrc_line {
long time_start;
long old_time_start;
off_t file_offset; /* offset of time tag in file */
short nword;
short width;
short nline[NB_SCREENS];
struct lrc_line *next;
struct lrc_word *words;
};
struct preferences {
/* display settings */
#if LCD_DEPTH > 1
unsigned active_color;
unsigned inactive_color;
#endif
#ifdef HAVE_LCD_BITMAP
bool wrap;
bool wipe;
bool active_one_line;
int align; /* 0: left, 1: center, 2: right */
bool statusbar_on;
bool display_title;
#endif
bool display_time;
bool backlight_on;
/* file settings */
char lrc_directory[64];
int encoding;
#ifdef LRC_SUPPORT_ID3
bool read_id3;
#endif
};
static struct preferences prefs, old_prefs;
static unsigned char *lrc_buffer;
static size_t lrc_buffer_size;
static size_t lrc_buffer_used, lrc_buffer_end;
enum extention_types {LRC, LRC8, SNC, TXT, NUM_TYPES, ID3_SYLT, ID3_USLT};
static const char *extentions[NUM_TYPES] = {
".lrc", ".lrc8", ".snc", ".txt",
};
static struct lrc_info {
struct mp3entry *id3;
long elapsed;
long length;
long ff_rewind;
int audio_status;
char mp3_file[MAX_PATH];
char lrc_file[MAX_PATH];
char *title; /* use lrc_buffer */
char *artist; /* use lrc_buffer */
enum extention_types type;
long offset; /* msec */
off_t offset_file_offset; /* offset of offset tag in file */
int nlrcbrpos;
int nlrcline;
struct lrc_line *ll_head, **ll_tail;
bool found_lrc;
bool loaded_lrc;
bool changed_lrc;
bool too_many_lines; /* true if nlrcline >= max_lrclines after calc pos */
#ifdef HAVE_LCD_BITMAP
bool wipe; /* false if lyrics is unsynched */
#endif
} current;
static char temp_buf[MAX(MAX_LINE_LEN,MAX_PATH)];
#ifdef HAVE_LCD_BITMAP
static int font_ui_height = 1;
static struct viewport vp_info[NB_SCREENS];
#endif
static struct viewport vp_lyrics[NB_SCREENS];
#define AUDIO_PAUSE (current.audio_status & AUDIO_STATUS_PAUSE)
#define AUDIO_PLAY (current.audio_status & AUDIO_STATUS_PLAY)
#define AUDIO_STOP (!(current.audio_status & AUDIO_STATUS_PLAY))
/*******************************
* lrc_set_time
*******************************/
#define LST_SET_MSEC 0x00010000
#define LST_SET_SEC 0x00020000
#define LST_SET_MIN 0x00040000
#define LST_SET_HOUR 0x00080000
#include "lib/pluginlib_actions.h"
#define LST_SET_TIME (LST_SET_MSEC|LST_SET_SEC|LST_SET_MIN|LST_SET_HOUR)
#ifdef HAVE_LCD_CHARCELLS
#define LST_OFF_Y 0
#else /* HAVE_LCD_BITMAP */
#define LST_OFF_Y 1
#endif
static int lrc_set_time(const char *title, const char *unit, long *pval,
int step, int min, int max, int flags)
{
const struct button_mapping *lst_contexts[] = {
pla_main_ctx,
#ifdef HAVE_REMOTE_LCD
pla_remote_ctx,
#endif
};
/* how many */
const unsigned char formats[4][8] = {"%03ld.", "%02ld.", "%02ld:", "%02ld:"};
const unsigned int maxs[4] = {1000, 60, 60, 24};
const unsigned int scls[4] = {1, 1000, 60*1000, 60*60*1000};
char buffer[32];
long value = *pval, scl_step = step, i = 0;
int pos = 0, last_pos = 0, pos_min = 3, pos_max = 0;
int x = 0, y = 0, p_start = 0, p_end = 0;
int ret = 10;
if (!(flags&LST_SET_TIME))
return -1;
for (i = 0; i < 4; i++)
{
if (flags&(LST_SET_MSEC<<i))
{
if (pos_min > i) pos_min = i;
if (pos_max < i) pos_max = i;
}
}
pos = pos_min;
rb->button_clear_queue();
rb->lcd_clear_display();
rb->lcd_puts_scroll(0, LST_OFF_Y, title);
while (ret == 10)
{
int len = 0;
long abs_val = value;
long segvals[4] = {-1, -1, -1, -1};
/* show negative value like -00:01 but 00:-1 */
if (value < 0)
{
buffer[len++] = '-';
abs_val = -value;
}
buffer[len] = 0;
/* calc value of each segments */
for (i = pos_min; i <= pos_max; i++)
{
segvals[i] = abs_val % maxs[i];
abs_val /= maxs[i];
}
segvals[i-1] += abs_val * maxs[i-1];
for (i = pos_max; i >= pos_min; i--)
{
if (pos == i)
{
rb->lcd_getstringsize(buffer, &x, &y);
p_start = len;
}
rb->snprintf(&buffer[len], 32-len, formats[i], segvals[i]);
len += rb->strlen(&buffer[len]);
if (pos == i)
p_end = len;
}
buffer[len-1] = 0; /* remove last separater */
if (unit != NULL)
{
rb->snprintf(&buffer[len], 32-len, " (%s)", unit);
}
rb->lcd_puts(0, LST_OFF_Y+1, buffer);
if (pos_min != pos_max)
{
/* draw cursor */
buffer[p_end-1] = 0;
#ifdef HAVE_LCD_BITMAP
rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
rb->lcd_putsxy(x, y*(1+LST_OFF_Y), &buffer[p_start]);
rb->lcd_set_drawmode(DRMODE_SOLID);
#else
rb->lcd_put_cursor(x+rb->utf8length(&buffer[p_start])-1, y, 0x7F);
#endif
}
rb->lcd_update();
int button = pluginlib_getaction(TIMEOUT_BLOCK, lst_contexts, ARRAYLEN(lst_contexts));
int mult = 1;
#ifdef HAVE_LCD_CHARCELLS
if (pos_min != pos_max)
rb->lcd_remove_cursor();
#endif
switch (button)
{
case PLA_UP_REPEAT:
case PLA_DOWN_REPEAT:
mult *= 10;
case PLA_DOWN:
case PLA_UP:
if (button == PLA_DOWN_REPEAT || button == PLA_DOWN)
mult *= -1;
if (pos != last_pos)
{
scl_step = ((scls[pos]/scls[pos_min]+step-1)/step) * step;
last_pos = pos;
}
value += scl_step * mult;
if (value > max)
value = max;
if (value < min)
value = min;
break;
case PLA_LEFT:
case PLA_LEFT_REPEAT:
if (++pos > pos_max)
pos = pos_min;
break;
case PLA_RIGHT:
case PLA_RIGHT_REPEAT:
if (--pos < pos_min)
pos = pos_max;
break;
case PLA_SELECT:
*pval = value;
ret = 0;
break;
case PLA_CANCEL:
case PLA_EXIT:
rb->splash(HZ, "Cancelled");
ret = -1;
break;
default:
if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
ret = 1;
break;
}
}
rb->lcd_clear_display();
rb->lcd_update();
return ret;
}
/*******************************
* misc stuff
*******************************/
static void reset_current_data(void)
{
current.title = NULL;
current.artist = NULL;
current.offset = 0;
current.offset_file_offset = -1;
current.nlrcbrpos = 0;
current.nlrcline = 0;
current.ll_head = NULL;
current.ll_tail = &current.ll_head;
current.loaded_lrc = false;
current.changed_lrc = false;
current.too_many_lines = false;
lrc_buffer_used = 0;
lrc_buffer_end = lrc_buffer_size;
}
/* check space and add str to lrc_buffer.
* return NULL if there is not enough buffer. */
static char *lrcbufadd(const char*str, bool join)
{
if (join) lrc_buffer_used--;
size_t siz = rb->strlen(str)+1;
char *pos = &lrc_buffer[lrc_buffer_used];
if (lrc_buffer_used + siz > lrc_buffer_end)
return NULL;
rb->strcpy(pos, str);
lrc_buffer_used += siz;
return pos;
}
static void *alloc_buf(size_t siz)
{
siz = (siz+3) & ~3;
if (lrc_buffer_used + siz > lrc_buffer_end)
return NULL;
lrc_buffer_end -= siz;
return &lrc_buffer[lrc_buffer_end];
}
static void *new_lrc_word(long time_start, char *word, bool join)
{
struct lrc_word *lrc_word;
if ((lrc_word = alloc_buf(sizeof(struct lrc_word))) == NULL)
return NULL;
if ((lrc_word->word = lrcbufadd(word, join)) == NULL)
return NULL;
lrc_word->time_start = time_start;
return lrc_word;
}
static bool add_lrc_line(struct lrc_line *lrc_line, char *word)
{
lrc_line->nword = 0;
lrc_line->next = NULL;
lrc_line->words = NULL;
if (word)
{
if ((lrc_line->words = new_lrc_word(-1, word, false)) == NULL)
return false;
lrc_line->nword++;
}
*current.ll_tail = lrc_line;
current.ll_tail = &(lrc_line->next);
current.nlrcline++;
return true;
}
static struct lrc_line *get_lrc_line(int idx)
{
static struct lrc_line *lrc_line = NULL;
static int n = 0;
if (idx < n)
{
lrc_line = current.ll_head;
n = 0;
}
while (n < idx && lrc_line)
{
lrc_line = lrc_line->next;
n++;
}
return lrc_line;
}
static char *get_lrc_str(struct lrc_line *lrc_line)
{
return lrc_line->words[lrc_line->nword-1].word;
}
static long get_time_start(struct lrc_line *lrc_line)
{
if (!lrc_line) return current.length+20;
long time = lrc_line->time_start + current.offset;
return time < 0? 0: time;
}
static void set_time_start(struct lrc_line *lrc_line, long time_start)
{
time_start -= current.offset;
time_start -= time_start%10;
if (lrc_line->time_start != time_start)
{
lrc_line->time_start = time_start;
current.changed_lrc = true;
}
}
#define get_word_time_start(x) get_time_start((struct lrc_line *)(x))
#define set_word_time_start(x, t) set_time_start((struct lrc_line *)(x), (t))
static int format_time_tag(char *buf, long t)
{
return rb->snprintf(buf, 16, "%02ld:%02ld.%02ld",
t/60000, (t/1000)%60, (t/10)%100);
}
/* find start of next line */
static const char *lrc_skip_space(const char *str)
{
#ifdef HAVE_LCD_BITMAP
if (prefs.wrap)
{
while (*str && *str != '\n' && isspace(*str))
str++;
}
#endif
if (*str == '\n')
str++;
return str;
}
#ifdef HAVE_LCD_BITMAP
static bool isbrchr(const unsigned char *str, int len)
{
const unsigned char *p = "!,-.:;?　、。！，．：；？―";
if (isspace(*str))
return true;
while(*p)
{
int n = rb->utf8seek(p, 1);
if (len == n && !rb->strncmp(p, str, len))
return true;
p += n;
}
return false;
}
#endif
/* calculate how many lines is needed to display and store it.
* create cache if there is enough space in lrc_buffer. */
static struct lrc_brpos *calc_brpos(struct lrc_line *lrc_line, int i)
{
struct lrc_brpos *lrc_brpos;
struct lrc_word *lrc_word;
int nlrcbrpos = 0, max_lrcbrpos;
#ifdef HAVE_LCD_BITMAP
struct font* pf = rb->font_get(FONT_UI);
unsigned short ch;
#endif
struct snap {
int count, width;
int nword;
int word_count, word_width;
const unsigned char *str;
}
#ifndef HAVE_LCD_CHARCELLS
sp,
#endif
cr;
lrc_buffer_used = (lrc_buffer_used+3)&~3; /* 4 bytes aligned */
lrc_brpos = (struct lrc_brpos *) &lrc_buffer[lrc_buffer_used];
max_lrcbrpos = (lrc_buffer_end-lrc_buffer_used) / sizeof(struct lrc_brpos);
if (!lrc_line)
{
/* calc info for all lrcs and store them if possible */
size_t buffer_used = lrc_buffer_used;
bool too_many_lines = false;
current.too_many_lines = true;
for (lrc_line = current.ll_head; lrc_line; lrc_line = lrc_line->next)
{
FOR_NB_SCREENS(i)
{
lrc_brpos = calc_brpos(lrc_line, i);
if (!too_many_lines)
{
lrc_buffer_used += lrc_line->nline[i]*sizeof(struct lrc_brpos);
if (nlrcbrpos + lrc_line->nline[i] >= max_lrcbrpos)
{
too_many_lines = true;
lrc_buffer_used = buffer_used;
calc_brpos(lrc_line, i);
}
}
nlrcbrpos += lrc_line->nline[i];
}
}
current.too_many_lines = too_many_lines;
lrc_buffer_used = buffer_used;
current.nlrcbrpos = nlrcbrpos;
return NULL;
}
if (!current.too_many_lines)
{
/* use stored infos. */
struct lrc_line *temp_lrc = current.ll_head;
for (; temp_lrc != lrc_line; temp_lrc = temp_lrc->next)
{
lrc_brpos += temp_lrc->nline[SCREEN_MAIN];
#ifdef HAVE_REMOTE_LCD
lrc_brpos += temp_lrc->nline[SCREEN_REMOTE];
#endif
}
#if NB_SCREENS >= 2
while (i)
lrc_brpos += lrc_line->nline[--i];
#endif
return lrc_brpos;
}
/* calculate number of lines, line width and char count for each line. */
lrc_line->width = 0;
cr.nword = lrc_line->nword;
lrc_word = lrc_line->words+cr.nword;
cr.str = (lrc_word-1)->word;
#ifndef HAVE_LCD_CHARCELLS
sp.word_count = 0;
sp.word_width = 0;
sp.nword = 0;
sp.count = 0;
sp.width = 0;
#endif
do {
cr.count = 0;
cr.width = 0;
#ifndef HAVE_LCD_CHARCELLS
sp.str = NULL;
#endif
while (1)
{
while(cr.nword > 0 && cr.str >= (lrc_word-1)->word)
{
cr.nword--;
lrc_word--;
lrc_word->count = 0;
lrc_word->width = 0;
}
if (*cr.str == 0 || *cr.str == '\n')
break;
int c, w;
#ifdef HAVE_LCD_CHARCELLS
c = rb->utf8seek(cr.str, 1);
w = 1;
#else
c = ((long)rb->utf8decode(cr.str, &ch) - (long)cr.str);
if (rb->is_diacritic(ch, NULL))
w = 0;
else
w = rb->font_get_width(pf, ch);
if (cr.count && prefs.wrap && isbrchr(cr.str, c))
{
/* remember position of last space */
rb->memcpy(&sp, &cr, sizeof(struct snap));
sp.word_count = lrc_word->count;
sp.word_width = lrc_word->width;
if (!isspace(*cr.str) && cr.width+w <= vp_lyrics[i].width)
{
sp.count += c;
sp.width += w;
sp.word_count += c;
sp.word_width += w;
sp.str += c;
}
}
if (cr.count && cr.width+w > vp_lyrics[i].width)
{
if (sp.str != NULL) /* wrap */
{
rb->memcpy(&cr, &sp, sizeof(struct snap));
lrc_word = lrc_line->words+cr.nword;
lrc_word->count = sp.word_count;
lrc_word->width = sp.word_width;
}
break;
}
#endif
cr.count += c;
cr.width += w;
lrc_word->count += c;
lrc_word->width += w;
cr.str += c;
}
lrc_line->width += cr.width;
lrc_brpos->count = cr.count;
lrc_brpos->width = cr.width;
nlrcbrpos++;
lrc_brpos++;
cr.str = lrc_skip_space(cr.str);
} while (*cr.str && nlrcbrpos < max_lrcbrpos);
lrc_line->nline[i] = nlrcbrpos;
while (cr.nword > 0)
{
cr.nword--;
lrc_word--;
lrc_word->count = 0;
lrc_word->width = 0;
}
return lrc_brpos-nlrcbrpos;
}
/* sort lyrics by time using stable sort. */
static void sort_lrcs(void)
{
struct lrc_line *p = current.ll_head, **q = NULL, *t;
long time_max = 0;
current.ll_head = NULL;
current.ll_tail = &current.ll_head;
while (p != NULL)
{
t = p->next;
/* remove problematic lrc_lines.
* it would cause problem in display_lrc_line() if nword is 0. */
if (p->nword)
{
q = p->time_start >= time_max? current.ll_tail: &current.ll_head;
while ((*q) && (*q)->time_start <= p->time_start)
q = &((*q)->next);
p->next = *q;
*q = p;
if (!p->next)
{
time_max = p->time_start;
current.ll_tail = &p->next;
}
}
p = t;
}
if (!current.too_many_lines)
calc_brpos(NULL, 0); /* stored data depends on order of lrcs if exist */
}
static void init_time_tag(void)
{
struct lrc_line *lrc_line = current.ll_head;
int nline = 0;
if (current.type == TXT || current.type == ID3_USLT)
{
/* set time tag according to length of audio and total line count
* for not synched lyrics, so that scroll speed is almost constant. */
for (; lrc_line; lrc_line = lrc_line->next)
{
lrc_line->time_start = nline * current.length / current.nlrcbrpos;
lrc_line->time_start -= lrc_line->time_start%10;
lrc_line->old_time_start = -1;
nline += lrc_line->nline[SCREEN_MAIN];
#ifdef HAVE_REMOTE_LCD
nline += lrc_line->nline[SCREEN_REMOTE];
#endif
}
}
else
{
/* reset timetags to the value read from file */
for (; lrc_line; lrc_line = lrc_line->next)
{
lrc_line->time_start = lrc_line->old_time_start;
}
sort_lrcs();
}
current.changed_lrc = false;
}
/*******************************
* Serch lrc file.
*******************************/
/* search in same or parent directries of playing file.
* assume playing file is /aaa/bbb/ccc/ddd.mp3,
* this function searchs lrc file following order.
* /aaa/bbb/ccc/ddd.lrc
* /aaa/bbb/ddd.lrc
* /aaa/ddd.lrc
* /ddd.lrc
*/
/* taken from apps/recorder/albumart.c */
static void fix_filename(char* name)
{
static const char invalid_chars[] = "*/:<>?\\|";
while (1)
{
if (*name == 0)
return;
if (*name == '"')
*name = '\'';
else if (rb->strchr(invalid_chars, *name))
*name = '_';
name++;
}
}
static bool find_lrc_file_helper(const char *base_dir)
{
char fname[MAX_PATH];
char *names[3] = {NULL, NULL, NULL};
char *p, *dir;
int i, len;
/* /aaa/bbb/ccc/ddd.mp3
* dir <--q names[0]
*/
/* assuming file name starts with '/' */
rb->strcpy(temp_buf, current.mp3_file);
/* get file name and remove extension */
names[0] = rb->strrchr(temp_buf, '/')+1;
if ((p = rb->strrchr(names[0], '.')) != NULL)
*p = 0;
if (current.id3->title && rb->strcmp(names[0], current.id3->title))
{
rb->strlcpy(fname, current.id3->title, sizeof(fname));
fix_filename(fname);
names[1] = fname;
}
dir = temp_buf;
p = names[0]-1;
do {
int n;
*p = 0;
for (n = 0; ; n++)
{
if (n == 0)
{
len = rb->snprintf(current.lrc_file, MAX_PATH, "%s%s/",
base_dir, dir);
}
else if (n == 1)
{
/* check file in subfolder named prefs.lrc_directory
* in the directory of mp3 file. */
if (prefs.lrc_directory[0] == '/')
{
len = rb->snprintf(current.lrc_file, MAX_PATH, "%s%s/",
dir, prefs.lrc_directory);
}
else
continue;
}
else
break;
DEBUGF("check file in %s\n", current.lrc_file);
if (!rb->dir_exists(current.lrc_file))
continue;
for (current.type = 0; current.type < NUM_TYPES; current.type++)
{
for (i = 0; names[i] != NULL; i++)
{
rb->snprintf(&current.lrc_file[len], MAX_PATH-len,
"%s%s", names[i], extentions[current.type]);
if (rb->file_exists(current.lrc_file))
{
DEBUGF("found: `%s'\n", current.lrc_file);
return true;
}
}
}
}
} while ((p = rb->strrchr(dir, '/')) != NULL);
return false;
}
/* return true if a lrc file is found */
static bool find_lrc_file(void)
{
reset_current_data();
DEBUGF("find lrc file for `%s'\n", current.mp3_file);
/* find .lrc file */
if (find_lrc_file_helper(""))
return true;
if (prefs.lrc_directory[0] == '/' && rb->dir_exists(prefs.lrc_directory))
{
if (find_lrc_file_helper(prefs.lrc_directory))
return true;
}
current.lrc_file[0] = 0;
return false;
}
/*******************************
* Load file.
*******************************/
/* check tag format and calculate value of the tag.
* supported tag: ti, ar, offset
* supported format of time tag: [mm:ss], [mm:ss.xx], [mm:ss.xxx]
* returns value of timega if tag is time tag, -1 if tag is supported tag,
* -10 otherwise.
*/
static char *parse_int(char *ptr, int *val)
{
*val = rb->atoi(ptr);
while (isdigit(*ptr)) ptr++;
return ptr;
}
static long get_time_value(char *tag, bool read_id_tags, off_t file_offset)
{
long time;
char *ptr;
int val;
if (read_id_tags)
{
if (!rb->strncmp(tag, "ti:", 3))
{
if (!current.id3->title || rb->strcmp(&tag[3], current.id3->title))
current.title = lrcbufadd(&tag[3], false);
return -1;
}
if (!rb->strncmp(tag, "ar:", 3))
{
if (!current.id3->artist || rb->strcmp(&tag[3], current.id3->artist))
current.artist = lrcbufadd(&tag[3], false);
return -1;
}
if (!rb->strncmp(tag, "offset:", 7))
{
current.offset = rb->atoi(&tag[7]);
current.offset_file_offset = file_offset;
return -1;
}
}
/* minute */
ptr = parse_int(tag, &val);
if (ptr-tag < 1 || ptr-tag > 2 || *ptr != ':')
return -10;
time = val * 60000;
/* second */
tag = ptr+1;
ptr = parse_int(tag, &val);
if (ptr-tag != 2 || (*ptr != '.' && *ptr != ':' && *ptr != '\0'))
return -10;
time += val * 1000;
if (*ptr != '\0')
{
/* milliseccond */
tag = ptr+1;
ptr = parse_int(tag, &val);
if (ptr-tag < 2 || ptr-tag > 3 || *ptr != '\0')
return -10;
time += ((ptr-tag)==3 ?val: val*10);
}
return time;
}
/* format:
* [time tag]line
* [time tag]...[time tag]line
* [time tag]<word time tag>word<word time tag>...<word time tag>
*/
static bool parse_lrc_line(char *line, off_t file_offset)
{
struct lrc_line *lrc_line = NULL, *first_lrc_line = NULL;
long time, time_start;
char *str, *tagstart, *tagend;
struct lrc_word *lrc_word;
int nword = 0;
/* parse [time tag]...[time tag] type tags */
str = line;
while (1)
{
if (*str != '[') break;
tagend = rb->strchr(str, ']');
if (tagend == NULL) break;
*tagend = 0;
time = get_time_value(str+1, !lrc_line, file_offset);
*tagend++ = ']';
if (time < 0)
break;
lrc_line = alloc_buf(sizeof(struct lrc_line));
if (lrc_line == NULL)
return false;
if (!first_lrc_line)
first_lrc_line = lrc_line;
lrc_line->file_offset = file_offset;
lrc_line->time_start = (time/10)*10;
lrc_line->old_time_start = lrc_line->time_start;
add_lrc_line(lrc_line, NULL);
file_offset += (long)tagend - (long)str;
str = tagend;
}
if (!first_lrc_line)
return true; /* no time tag in line */
lrc_line = first_lrc_line;
if (lrcbufadd("", false) == NULL)
return false;
/* parse <word time tag>...<word time tag> type tags */
/* [time tag]...[time tag]line type tags share lrc_line->words and can't
* use lrc_line->words->timestart. use lrc_line->time_start instead. */
time_start = -1;
tagstart = str;
while (*tagstart)
{
tagstart = rb->strchr(tagstart, '<');
if (!tagstart) break;
tagend = rb->strchr(tagstart, '>');
if (!tagend) break;
*tagend = 0;
time = get_time_value(tagstart+1, false,
file_offset + ((long)tagstart - (long)str));
*tagend++ = '>';
if (time < 0)
{
tagstart++;
continue;
}
*tagstart = 0;
/* found word time tag. */
if (*str || time_start != -1)
{
if ((lrc_word = new_lrc_word(time_start, str, true)) == NULL)
return false;
nword++;
}
file_offset += (long)tagend - (long)str;
tagstart = str = tagend;
time_start = time;
}
if ((lrc_word = new_lrc_word(time_start, str, true)) == NULL)
return false;
nword++;
/* duplicate lrc_lines */
while (lrc_line)
{
lrc_line->nword = nword;
lrc_line->words = lrc_word;
lrc_line = lrc_line->next;
}
return true;
}
/* format:
* \xa2\xe2hhmmssxx\xa2\xd0
* line 1
* line 2
* \xa2\xe2hhmmssxx\xa2\xd0
* line 3
* ...
*/
static bool parse_snc_line(char *line, off_t file_offset)
{
#define SNC_TAG_START "\xa2\xe2"
#define SNC_TAG_END "\xa2\xd0"
/* SNC_TAG can be dencoded, so use
* temp_buf which contains native data */
if (!rb->memcmp(temp_buf, SNC_TAG_START, 2)
&& !rb->memcmp(temp_buf+10, SNC_TAG_END, 2)) /* time tag */
{
const char *pos = temp_buf+2; /* skip SNC_TAG_START */
int hh, mm, ss, xx;
hh = (pos[0]-'0')*10+(pos[1]-'0'); pos += 2;
mm = (pos[0]-'0')*10+(pos[1]-'0'); pos += 2;
ss = (pos[0]-'0')*10+(pos[1]-'0'); pos += 2;
xx = (pos[0]-'0')*10+(pos[1]-'0'); pos += 2;
pos += 2; /* skip SNC_TAG_END */
/* initialize */
struct lrc_line *lrc_line = alloc_buf(sizeof(struct lrc_line));
if (lrc_line == NULL)
return false;
lrc_line->file_offset = file_offset+2;
lrc_line->time_start = hh*3600000+mm*60000+ss*1000+xx*10;
lrc_line->old_time_start = lrc_line->time_start;
if (!add_lrc_line(lrc_line, ""))
return false;
if (pos[0]==0)
return true;
/* encode rest of line and add to buffer */
rb->iso_decode(pos, line, prefs.encoding, rb->strlen(pos)+1);
}
if (current.ll_head)
{
rb->strcat(line, "\n");
if (lrcbufadd(line, true) == NULL)
return false;
}
return true;
}
static bool parse_txt_line(char *line, off_t file_offset)
{
/* initialize */
struct lrc_line *lrc_line = alloc_buf(sizeof(struct lrc_line));
if (lrc_line == NULL)
return false;
lrc_line->file_offset = file_offset;
lrc_line->time_start = 0;
lrc_line->old_time_start = -1;
if (!add_lrc_line(lrc_line, line))
return false;
return true;
}
static void load_lrc_file(void)
{
char utf8line[MAX_LINE_LEN*3];
int fd;
int encoding = prefs.encoding;
bool (*line_parser)(char *line, off_t) = NULL;
off_t file_offset, readsize;
switch(current.type)
{
case LRC8:
encoding = UTF_8; /* .lrc8 is utf8 */
/* fall through */
case LRC:
line_parser = parse_lrc_line;
break;
case SNC:
line_parser = parse_snc_line;
break;
case TXT:
line_parser = parse_txt_line;
break;
default:
return;
}
fd = rb->open(current.lrc_file, O_RDONLY);
if (fd < 0) return;
{
/* check encoding */
#define BOM "\xef\xbb\xbf"
#define BOM_SIZE 3
unsigned char header[BOM_SIZE];
unsigned char* (*utf_decode)(const unsigned char *,
unsigned char *, int) = NULL;
rb->read(fd, header, BOM_SIZE);
if (!rb->memcmp(header, BOM, BOM_SIZE)) /* UTF-8 */
{
encoding = UTF_8;
}
else if (!rb->memcmp(header, "\xff\xfe", 2)) /* UTF-16LE */
{
utf_decode = rb->utf16LEdecode;
}
else if (!rb->memcmp(header, "\xfe\xff", 2)) /* UTF-16BE */
{
utf_decode = rb->utf16BEdecode;
}
else
{
rb->lseek(fd, 0, SEEK_SET);
}
if (utf_decode)
{
/* convert encoding of file from UTF-16 to UTF-8 */
char temp_file[MAX_PATH];
int fe;
rb->lseek(fd, 2, SEEK_SET);
rb->snprintf(temp_file, MAX_PATH, "%s~", current.lrc_file);
fe = rb->creat(temp_file, 0666);
if (fe < 0)
{
rb->close(fd);
return;
}
rb->write(fe, BOM, BOM_SIZE);
while ((readsize = rb->read(fd, temp_buf, MAX_LINE_LEN)) > 0)
{
char *end = utf_decode(temp_buf, utf8line, readsize/2);
rb->write(fe, utf8line, end-utf8line);
}
rb->close(fe);
rb->close(fd);
rb->remove(current.lrc_file);
rb->rename(temp_file, current.lrc_file);
fd = rb->open(current.lrc_file, O_RDONLY);
if (fd < 0) return;
rb->lseek(fd, BOM_SIZE, SEEK_SET); /* skip bom */
encoding = UTF_8;
}
}
file_offset = rb->lseek(fd, 0, SEEK_CUR); /* used in line_parser */
while ((readsize = rb->read_line(fd, temp_buf, MAX_LINE_LEN)) > 0)
{
/* note: parse_snc_line() reads temp_buf for native data. */
rb->iso_decode(temp_buf, utf8line, encoding, readsize+1);
if (!line_parser(utf8line, file_offset))
break;
file_offset += readsize;
}
rb->close(fd);
current.loaded_lrc = true;
calc_brpos(NULL, 0);
init_time_tag();
return;
}
#ifdef LRC_SUPPORT_ID3
/*******************************
* read lyrics from id3
*******************************/
/* taken from apps/metadata/mp3.c */
static unsigned long unsync(unsigned long b0, unsigned long b1,
unsigned long b2, unsigned long b3)
{
return (((long)(b0 & 0x7F) << (3*7)) |
((long)(b1 & 0x7F) << (2*7)) |
((long)(b2 & 0x7F) << (1*7)) |
((long)(b3 & 0x7F) << (0*7)));
}
static unsigned long bytes2int(unsigned long b0, unsigned long b1,
unsigned long b2, unsigned long b3)
{
return (((long)(b0 & 0xFF) << (3*8)) |
((long)(b1 & 0xFF) << (2*8)) |
((long)(b2 & 0xFF) << (1*8)) |
((long)(b3 & 0xFF) << (0*8)));
}
static int unsynchronize(char* tag, int len, bool *ff_found)
{
int i;
unsigned char c;
unsigned char *rp, *wp;
bool _ff_found = false;
if(ff_found) _ff_found = *ff_found;
wp = rp = (unsigned char *)tag;
rp = (unsigned char *)tag;
for(i = 0; i<len; i++) {
/* Read the next byte and write it back, but don't increment the
write pointer */
c = *rp++;
*wp = c;
if(_ff_found) {
/* Increment the write pointer if it isn't an unsynch pattern */
if(c != 0)
wp++;
_ff_found = false;
} else {
if(c == 0xff)
_ff_found = true;
wp++;
}
}
if(ff_found) *ff_found = _ff_found;
return (long)wp - (long)tag;
}
static int read_unsynched(int fd, void *buf, int len, bool *ff_found)
{
int i;
int rc;
int remaining = len;
char *wp;
wp = buf;
while(remaining) {
rc = rb->read(fd, wp, remaining);
if(rc <= 0)
return rc;
i = unsynchronize(wp, remaining, ff_found);
remaining -= i;
wp += i;
}
return len;
}
static unsigned char* utf8cpy(const unsigned char *src,
unsigned char *dst, int count)
{
rb->strlcpy(dst, src, count+1);
return dst+rb->strlen(dst);
}
static void parse_id3v2(int fd)
{
int minframesize;
int size;
long framelen;
char header[10];
char tmp[8];
unsigned char version;
int bytesread = 0;
unsigned char global_flags;
int flags;
bool global_unsynch = false;
bool global_ff_found = false;
bool unsynch = false;
int rc;
enum {NOLT, SYLT, USLT} type = NOLT;
/* Bail out if the tag is shorter than 10 bytes */
if(current.id3->id3v2len < 10)
return;
/* Read the ID3 tag version from the header */
if(10 != rb->read(fd, header, 10))
return;
/* Get the total ID3 tag size */
size = current.id3->id3v2len - 10;
version = current.id3->id3version;
switch ( version )
{
case ID3_VER_2_2:
minframesize = 8;
break;
case ID3_VER_2_3:
minframesize = 12;
break;
case ID3_VER_2_4:
minframesize = 12;
break;
default:
/* unsupported id3 version */
return;
}
global_flags = header[5];
/* Skip the extended header if it is present */
if(global_flags & 0x40) {
if(version == ID3_VER_2_3) {
if(10 != rb->read(fd, header, 10))
return;
/* The 2.3 extended header size doesn't include the header size
field itself. Also, it is not unsynched. */
framelen =
bytes2int(header[0], header[1], header[2], header[3]) + 4;
/* Skip the rest of the header */
rb->lseek(fd, framelen - 10, SEEK_CUR);
}
if(version >= ID3_VER_2_4) {
if(4 != rb->read(fd, header, 4))
return;
/* The 2.4 extended header size does include the entire header,
so here we can just skip it. This header is unsynched. */
framelen = unsync(header[0], header[1],
header[2], header[3]);
rb->lseek(fd, framelen - 4, SEEK_CUR);
}
}
/* Is unsynchronization applied? */
if(global_flags & 0x80) {
global_unsynch = true;
}
/* We must have at least minframesize bytes left for the
* remaining frames to be interesting */
while (size >= minframesize) {
flags = 0;
/* Read frame header and check length */
if(version >= ID3_VER_2_3) {
if(global_unsynch && version <= ID3_VER_2_3)
rc = read_unsynched(fd, header, 10, &global_ff_found);
else
rc = rb->read(fd, header, 10);
if(rc != 10)
return;
/* Adjust for the 10 bytes we read */
size -= 10;
flags = bytes2int(0, 0, header[8], header[9]);
if (version >= ID3_VER_2_4) {
framelen = unsync(header[4], header[5],
header[6], header[7]);
} else {
/* version .3 files don't use synchsafe ints for
* size */
framelen = bytes2int(header[4], header[5],
header[6], header[7]);
}
} else {
if(6 != rb->read(fd, header, 6))
return;
/* Adjust for the 6 bytes we read */
size -= 6;
framelen = bytes2int(0, header[3], header[4], header[5]);
}
if(framelen == 0){
if (header[0] == 0 && header[1] == 0 && header[2] == 0)
return;
else
continue;
}
unsynch = false;
if(flags)
{
if (version >= ID3_VER_2_4) {
if(flags & 0x0040) { /* Grouping identity */
rb->lseek(fd, 1, SEEK_CUR); /* Skip 1 byte */
framelen--;
}
} else {
if(flags & 0x0020) { /* Grouping identity */
rb->lseek(fd, 1, SEEK_CUR); /* Skip 1 byte */
framelen--;
}
}
if(flags & 0x000c) /* Compression or encryption */
{
/* Skip it */
size -= framelen;
rb->lseek(fd, framelen, SEEK_CUR);
continue;
}
if(flags & 0x0002) /* Unsynchronization */
unsynch = true;
if (version >= ID3_VER_2_4) {
if(flags & 0x0001) { /* Data length indicator */
if(4 != rb->read(fd, tmp, 4))
return;
/* We don't need the data length */
framelen -= 4;
}
}
}
if (framelen == 0)
continue;
if (framelen < 0)
return;
if(!rb->memcmp( header, "SLT", 3 ) ||
!rb->memcmp( header, "SYLT", 4 ))
{
/* found a supported tag */
type = SYLT;
break;
}
else if(!rb->memcmp( header, "ULT", 3 ) ||
!rb->memcmp( header, "USLT", 4 ))
{
/* found a supported tag */
type = USLT;
break;
}
else
{
/* not a supported tag*/
if(global_unsynch && version <= ID3_VER_2_3) {
size -= read_unsynched(fd, lrc_buffer, framelen, &global_ff_found);
} else {
size -= framelen;
if( rb->lseek(fd, framelen, SEEK_CUR) == -1 )
return;
}
}
}
if(type == NOLT)
return;
int encoding = 0, chsiz;
char *tag, *p, utf8line[MAX_LINE_LEN*3];
unsigned char* (*utf_decode)(const unsigned char *,
unsigned char *, int) = NULL;
/* use middle of lrc_buffer to store tag data. */
if(framelen >= LRC_BUFFER_SIZE/3)
framelen = LRC_BUFFER_SIZE/3-1;
tag = lrc_buffer+LRC_BUFFER_SIZE*2/3-framelen-1;
if(global_unsynch && version <= ID3_VER_2_3)
bytesread = read_unsynched(fd, tag, framelen, &global_ff_found);
else
bytesread = rb->read(fd, tag, framelen);
if( bytesread != framelen )
return;
if(unsynch || (global_unsynch && version >= ID3_VER_2_4))
bytesread = unsynchronize(tag, bytesread, NULL);
tag[bytesread] = 0;
encoding = tag[0];
p = tag;
/* skip some data */
if(type == SYLT) {
p += 6;
} else {
p += 4;
}
/* check encoding and skip content descriptor */
switch (encoding) {
case 0x01: /* Unicode with or without BOM */
case 0x02:
/* Now check if there is a BOM
(zero-width non-breaking space, 0xfeff)
and if it is in little or big endian format */
if(!rb->memcmp(p, "\xff\xfe", 2)) { /* Little endian? */
utf_decode = rb->utf16LEdecode;
} else if(!rb->memcmp(p, "\xfe\xff", 2)) { /* Big endian? */
utf_decode = rb->utf16BEdecode;
} else
utf_decode = NULL;
encoding = NUM_CODEPAGES;
do {
size = p[0] | p[1];
p += 2;
} while(size);
chsiz = 2;
break;
default:
utf_decode = utf8cpy;
if(encoding == 0x03) /* UTF-8 encoded string */
encoding = UTF_8;
else
encoding = prefs.encoding;
p += rb->strlen(p)+1;
chsiz = 1;
break;
}
if(encoding == NUM_CODEPAGES)
{
/* check if there is a BOM */
if(!rb->memcmp(p, "\xff\xfe", 2)) { /* Little endian? */
utf_decode = rb->utf16LEdecode;
p += 2;
} else if(!rb->memcmp(p, "\xfe\xff", 2)) { /* Big endian? */
utf_decode = rb->utf16BEdecode;
p += 2;
} else if(!utf_decode) {
/* If there is no BOM (which is a specification violation),
let's try to guess it. If one of the bytes is 0x00, it is
probably the most significant one. */
if(p[1] == 0)
utf_decode = rb->utf16LEdecode;
else
utf_decode = rb->utf16BEdecode;
}
}
bytesread -= (long)p - (long)tag;
tag = p;
while ( bytesread > 0
&& lrc_buffer_used+bytesread < LRC_BUFFER_SIZE*2/3
&& LRC_BUFFER_SIZE*2/3 < lrc_buffer_end)
{
bool is_crlf = false;
struct lrc_line *lrc_line = alloc_buf(sizeof(struct lrc_line));
if(!lrc_line)
break;
lrc_line->file_offset = -1;
if(type == USLT)
{
/* replace 0x0a and 0x0d with 0x00 */
p = tag;
while(1) {
utf_decode(p, tmp, 2);
if(!tmp[0]) break;
if(tmp[0] == 0x0d || tmp[0] == 0x0a)
{
if(tmp[0] == 0x0d && tmp[1] == 0x0a)
is_crlf = true;
p[0] = 0;
p[chsiz-1] = 0;
break;
}
p += chsiz;
}
}
if(encoding == NUM_CODEPAGES)
{
unsigned char* utf8 = utf8line;
p = tag;
do {
utf8 = utf_decode(p, utf8, 1);
p += 2;
} while(*(utf8-1));
}
else
{
size = rb->strlen(tag)+1;
rb->iso_decode(tag, utf8line, encoding, size);
p = tag+size;
}
if(type == SYLT) { /* timestamp */
lrc_line->time_start = bytes2int(p[0], p[1], p[2], p[3]);
lrc_line->old_time_start = lrc_line->time_start;
p += 4;
utf_decode(p, tmp, 1);
if(tmp[0] == 0x0a)
p += chsiz;
} else { /* USLT */
lrc_line->time_start = 0;
lrc_line->old_time_start = -1;
if(is_crlf) p += chsiz;
}
bytesread -= (long)p - (long)tag;
tag = p;
if(!add_lrc_line(lrc_line, utf8line))
break;
}
current.type = ID3_SYLT-SYLT+type;
rb->strcpy(current.lrc_file, current.mp3_file);
current.loaded_lrc = true;
calc_brpos(NULL, 0);
init_time_tag();
return;
}
static bool read_id3(void)
{
int fd;
if(current.id3->codectype != AFMT_MPA_L1
&& current.id3->codectype != AFMT_MPA_L2
&& current.id3->codectype != AFMT_MPA_L3)
return false;
fd = rb->open(current.mp3_file, O_RDONLY);
if(fd < 0) return false;
current.loaded_lrc = false;
parse_id3v2(fd);
rb->close(fd);
return current.loaded_lrc;
}
#endif /* LRC_SUPPORT_ID3 */
/*******************************
* Display information
*******************************/
static void display_state(void)
{
const char *str = NULL;
if (AUDIO_STOP)
str = "Audio Stopped";
else if (current.found_lrc)
{
if (!current.loaded_lrc)
str = "Loading lrc";
else if (!current.ll_head)
str = "No lyrics";
}
#ifdef HAVE_LCD_BITMAP
const char *info = NULL;
if (AUDIO_PLAY && prefs.display_title)
{
char *title = (current.title? current.title: current.id3->title);
char *artist = (current.artist? current.artist: current.id3->artist);
if (artist != NULL && title != NULL)
{
rb->snprintf(temp_buf, MAX_LINE_LEN, "%s/%s", title, artist);
info = temp_buf;
}
else if (title != NULL)
info = title;
else if (current.mp3_file[0] == '/')
info = rb->strrchr(current.mp3_file, '/')+1;
else
info = "(no info)";
}
int i, w, h;
struct screen* display;
FOR_NB_SCREENS(i)
{
display = rb->screens[i];
display->set_viewport(&vp_info[i]);
display->clear_viewport();
if (info)
display->puts_scroll(0, 0, info);
if (str)
{
display->set_viewport(&vp_lyrics[i]);
display->clear_viewport();
display->getstringsize(str, &w, &h);
if (vp_lyrics[i].width - w < 0)
display->puts_scroll(0, vp_lyrics[i].height/font_ui_height/2,
str);
else
display->putsxy((vp_lyrics[i].width - w)*prefs.align/2,
(vp_lyrics[i].height-font_ui_height)/2, str);
display->set_viewport(&vp_info[i]);
}
display->update_viewport();
display->set_viewport(NULL);
}
#else
/* there is no place to display title or artist. */
rb->lcd_clear_display();
if (str)
rb->lcd_puts_scroll(0, 0, str);
rb->lcd_update();
#endif /* HAVE_LCD_BITMAP */
}
static void display_time(void)
{
rb->snprintf(temp_buf, MAX_LINE_LEN, "%ld:%02ld/%ld:%02ld",
current.elapsed/60000, (current.elapsed/1000)%60,
current.length/60000, (current.length)/1000%60);
#ifdef HAVE_LCD_BITMAP
int y = (prefs.display_title? font_ui_height:0), i;
FOR_NB_SCREENS(i)
{
struct screen* display = rb->screens[i];
display->set_viewport(&vp_info[i]);
display->setfont(FONT_SYSFIXED);
display->putsxy(0, y, temp_buf);
rb->gui_scrollbar_draw(display, 0, y+SYSFONT_HEIGHT+1,
vp_info[i].width, SYSFONT_HEIGHT-2,
current.length, 0, current.elapsed, HORIZONTAL);
display->update_viewport_rect(0, y, vp_info[i].width, SYSFONT_HEIGHT*2);
display->setfont(FONT_UI);
display->set_viewport(NULL);
}
#else
rb->lcd_puts(0, 0, temp_buf);
rb->lcd_update();
#endif /* HAVE_LCD_BITMAP */
}
/*******************************
* Display lyrics
*******************************/
#ifdef HAVE_LCD_BITMAP
static inline void set_to_default(struct screen *display)
{
#if (LCD_DEPTH > 1)
#ifdef HAVE_REMOTE_LCD
if (display->screen_type != SCREEN_REMOTE)
#endif
display->set_foreground(prefs.active_color);
#endif
display->set_drawmode(DRMODE_SOLID);
}
static inline void set_to_active(struct screen *display)
{
#if (LCD_DEPTH > 1)
#ifdef HAVE_REMOTE_LCD
if (display->screen_type == SCREEN_REMOTE)
display->set_drawmode(DRMODE_INVERSEVID);
else
#endif
{
display->set_foreground(prefs.active_color);
display->set_drawmode(DRMODE_SOLID);
}
#else /* LCD_DEPTH == 1 */
display->set_drawmode(DRMODE_INVERSEVID);
#endif
}
static inline void set_to_inactive(struct screen *display)
{
#if (LCD_DEPTH > 1)
#ifdef HAVE_REMOTE_LCD
if (display->screen_type != SCREEN_REMOTE)
#endif
display->set_foreground(prefs.inactive_color);
#endif
display->set_drawmode(DRMODE_SOLID);
}
static int display_lrc_line(struct lrc_line *lrc_line, int ypos, int i)
{
struct screen *display = rb->screens[i];
struct lrc_word *lrc_word;
struct lrc_brpos *lrc_brpos;
long time_start, time_end, elapsed;
int count, width, nword;
int xpos;
const char *str;
bool active_line;
time_start = get_time_start(lrc_line);
time_end = get_time_start(lrc_line->next);
active_line = (time_start <= current.elapsed
&& time_end > current.elapsed);
if (!lrc_line->width)
{
/* empty line. draw bar during interval. */
long rin = current.elapsed - time_start;
long len = time_end - time_start;
if (current.wipe && active_line && len >= 3500)
{
elapsed = rin * vp_lyrics[i].width / len;
set_to_inactive(display);
display->fillrect(elapsed, ypos+font_ui_height/4+1,
vp_lyrics[i].width-elapsed-1, font_ui_height/2-2);
set_to_active(display);
display->drawrect(0, ypos+font_ui_height/4,
vp_lyrics[i].width, font_ui_height/2);
display->fillrect(1, ypos+font_ui_height/4+1,
elapsed-1, font_ui_height/2-2);
set_to_default(display);
}
return ypos + font_ui_height;
}
lrc_brpos = calc_brpos(lrc_line, i);
/* initialize line */
xpos = (vp_lyrics[i].width - lrc_brpos->width)*prefs.align/2;
count = 0;
width = 0;
active_line = active_line || !prefs.active_one_line;
nword = lrc_line->nword-1;
lrc_word = lrc_line->words + nword;
str = lrc_word->word;
/* only time_start of first word could be -1 */
if (lrc_word->time_start != -1)
time_end = get_word_time_start(lrc_word);
else
time_end = time_start;
do {
time_start = time_end;
if (nword > 0)
time_end = get_word_time_start(lrc_word-1);
else
time_end = get_time_start(lrc_line->next);
if (time_start > current.elapsed || !active_line)
{
/* inactive */
elapsed = 0;
}
else if (!current.wipe || time_end <= current.elapsed)
{
/* active whole word */
elapsed = lrc_word->width;
}
else
{
/* wipe word */
long rin = current.elapsed - time_start;
long len = time_end - time_start;
elapsed = rin * lrc_word->width / len;
}
int word_count = lrc_word->count;
int word_width = lrc_word->width;
set_to_active(display);
while (word_count > 0 && word_width > 0)
{
int c = lrc_brpos->count - count;
int w = lrc_brpos->width - width;
if (c > word_count || w > word_width)
{
c = word_count;
w = word_width;
}
if (elapsed <= 0)
{
set_to_inactive(display);
}
else if (elapsed < w)
{
/* wipe text */
display->fillrect(xpos, ypos, elapsed, font_ui_height);
set_to_inactive(display);
display->fillrect(xpos+elapsed, ypos,
w-elapsed, font_ui_height);
#if (LCD_DEPTH > 1)
#ifdef HAVE_REMOTE_LCD
if (display->screen_type == SCREEN_REMOTE)
display->set_drawmode(DRMODE_INVERSEVID);
else
#endif
display->set_drawmode(DRMODE_BG);
#else
display->set_drawmode(DRMODE_INVERSEVID);
#endif
}
rb->strlcpy(temp_buf, str, c+1);
display->putsxy(xpos, ypos, temp_buf);
str += c;
xpos += w;
count += c;
width += w;
word_count -= c;
word_width -= w;
elapsed -= w;
if (count >= lrc_brpos->count || width >= lrc_brpos->width)
{
/* prepare for next line */
lrc_brpos++;
str = lrc_skip_space(str);
xpos = (vp_lyrics[i].width - lrc_brpos->width)*prefs.align/2;
ypos += font_ui_height;
count = 0;
width = 0;
}
}
lrc_word--;
} while (nword--);
set_to_default(display);
return ypos;
}
#endif /* HAVE_LCD_BITMAP */
static void display_lrcs(void)
{
long time_start, time_end, rin, len;
int i, nline[NB_SCREENS] = {0};
struct lrc_line *lrc_center = current.ll_head;
if (!lrc_center) return;
while (get_time_start(lrc_center->next) <= current.elapsed)
{
nline[SCREEN_MAIN] += lrc_center->nline[SCREEN_MAIN];
#ifdef HAVE_REMOTE_LCD
nline[SCREEN_REMOTE] += lrc_center->nline[SCREEN_REMOTE];
#endif
lrc_center = lrc_center->next;
}
time_start = get_time_start(lrc_center);
time_end = get_time_start(lrc_center->next);
rin = current.elapsed - time_start;
len = time_end - time_start;
struct screen *display;
FOR_NB_SCREENS(i)
{
display = rb->screens[i];
/* display current line at the center of the viewport */
display->set_viewport(&vp_lyrics[i]);
display->clear_viewport();
#ifdef HAVE_LCD_BITMAP
struct lrc_line *lrc_line;
int y, ypos = 0, nblines = vp_lyrics[i].height/font_ui_height;
y = (nblines-1)/2;
if (rin < 0)
{
/* current.elapsed < time of first lrc */
if (!current.wipe)
ypos = (time_start - current.elapsed)
* font_ui_height / time_start;
else
y++;
}
else if (len > 0)
{
if (!current.wipe)
ypos = - rin * lrc_center->nline[i] * font_ui_height / len;
else
{
long elapsed = rin * lrc_center->width / len;
struct lrc_brpos *lrc_brpos = calc_brpos(lrc_center, i);
while (elapsed > lrc_brpos->width)
{
elapsed -= lrc_brpos->width;
y--;
lrc_brpos++;
}
}
}
/* find first line to display */
y -= nline[i];
lrc_line = current.ll_head;
while (y < -lrc_line->nline[i])
{
y += lrc_line->nline[i];
lrc_line = lrc_line->next;
}
ypos += y*font_ui_height;
while (lrc_line && ypos < vp_lyrics[i].height)
{
ypos = display_lrc_line(lrc_line, ypos, i);
lrc_line = lrc_line->next;
}
if (!lrc_line && ypos < vp_lyrics[i].height)
display->putsxy(0, ypos, "[end]");
#else /* HAVE_LCD_CHARCELLS */
struct lrc_line *lrc_line = lrc_center;
struct lrc_brpos *lrc_brpos = calc_brpos(lrc_line, i);
long elapsed = 0;
const char *str = get_lrc_str(lrc_line);
int x = vp_lyrics[i].width/2, y = 0;
if (rin >= 0 && len > 0)
{
elapsed = rin * lrc_center->width / len;
while (elapsed > lrc_brpos->width)
{
elapsed -= lrc_brpos->width;
str = lrc_skip_space(str+lrc_brpos->count);
lrc_brpos++;
}
}
rb->strlcpy(temp_buf, str, lrc_brpos->count+1);
x -= elapsed;
if (x < 0)
display->puts(0, y, temp_buf + rb->utf8seek(temp_buf, -x));
else
display->puts(x, y, temp_buf);
x += rb->utf8length(temp_buf)+1;
lrc_line = lrc_line->next;
if (!lrc_line && x < vp_lyrics[i].width)
{
if (x < vp_lyrics[i].width/2)
x = vp_lyrics[i].width/2;
display->puts(x, y, "[end]");
}
#endif /* HAVE_LCD_BITMAP */
display->update_viewport();
display->set_viewport(NULL);
}
}
/*******************************
* Browse lyrics and edit time.
*******************************/
/* point playing line in lyrics */
static enum themable_icons get_icon(int selected, void * data)
{
(void) data;
struct lrc_line *lrc_line = get_lrc_line(selected);
if (lrc_line)
{
long time_start = get_time_start(lrc_line);
long time_end = get_time_start(lrc_line->next);
long elapsed = current.id3->elapsed;
if (time_start <= elapsed && time_end > elapsed)
return Icon_Moving;
}
return Icon_NOICON;
}
static const char *get_lrc_timeline(int selected, void *data,
char *buffer, size_t buffer_len)
{
(void) data;
struct lrc_line *lrc_line = get_lrc_line(selected);
if (lrc_line)
{
format_time_tag(temp_buf, get_time_start(lrc_line));
rb->snprintf(buffer, buffer_len, "[%s]%s",
temp_buf, get_lrc_str(lrc_line));
return buffer;
}
return NULL;
}
static void save_changes(void)
{
char new_file[MAX_PATH], *p;
bool success = false;
int fd, fe;
if (!current.changed_lrc)
return;
rb->splash(HZ/2, "Saving changes...");
if (current.type == TXT || current.type > NUM_TYPES)
{
/* save changes to new .lrc file */
rb->strcpy(new_file, current.lrc_file);
p = rb->strrchr(new_file, '.');
rb->strcpy(p, extentions[LRC]);
}
else
{
/* file already exists. use temp file. */
rb->snprintf(new_file, MAX_PATH, "%s~", current.lrc_file);
}
fd = rb->creat(new_file, 0666);
fe = rb->open(current.lrc_file, O_RDONLY);
if (fd >= 0 && fe >= 0)
{
struct lrc_line *lrc_line, *temp_lrc;
off_t curr = 0, next = 0, size = 0, offset = 0;
for (lrc_line = current.ll_head; lrc_line;
lrc_line = lrc_line->next)
{
/* apply offset and set old_time_start -1 to indicate
that time tag is not saved yet. */
lrc_line->time_start = get_time_start(lrc_line);
lrc_line->old_time_start = -1;
}
current.offset = 0;
if (current.type > NUM_TYPES)
{
curr = -1;
rb->write(fd, BOM, BOM_SIZE);
}
else
size = rb->filesize(fe);
while (curr < size)
{
/* find offset of next tag */
lrc_line = NULL;
for (temp_lrc = current.ll_head, next = size;
temp_lrc; temp_lrc = temp_lrc->next)
{
offset = temp_lrc->file_offset;
if (offset < next && temp_lrc->old_time_start == -1)
{
lrc_line = temp_lrc;
next = offset;
if (offset <= curr) break;
}
}
offset = current.offset_file_offset;
if (offset >= 0 && offset < next)
{
lrc_line = NULL;
next = offset;
current.offset_file_offset = -1;
}
if (next > curr)
{
if (curr == -1) curr = 0;
/* copy before the next tag */
while (curr < next)
{
ssize_t count = next-curr;
if (count > MAX_LINE_LEN)
count = MAX_LINE_LEN;
if (rb->read(fe, temp_buf, count)!=count)
break;
rb->write(fd, temp_buf, count);
curr += count;
}
if (curr < next || curr >= size) break;
}
/* write tag to new file and skip tag in backup */
if (lrc_line != NULL)
{
lrc_line->file_offset = rb->lseek(fd, 0, SEEK_CUR);
lrc_line->old_time_start = lrc_line->time_start;
long t = lrc_line->time_start;
if (current.type == SNC)
{
rb->fdprintf(fd, "%02ld%02ld%02ld%02ld", (t/3600000)%100,
(t/60000)%60, (t/1000)%60, (t/10)%100);
/* skip time tag */
curr += rb->read(fe, temp_buf, 8);
}
else /* LRC || LRC8 */
{
format_time_tag(temp_buf, t);
rb->fdprintf(fd, "[%s]", temp_buf);
}
if (next == -1)
{
rb->fdprintf(fd, "%s\n", get_lrc_str(lrc_line));
}
}
if (current.type == LRC || current.type == LRC8)
{
/* skip both time tag and offset tag */
while (curr++<size && rb->read(fe, temp_buf, 1)==1)
if (temp_buf[0]==']') break;
}
}
success = (curr>=size);
}
if (fe >= 0) rb->close(fe);
if (fd >= 0) rb->close(fd);
if (success)
{
if (current.type == TXT || current.type > NUM_TYPES)
{
current.type = LRC;
rb->strcpy(current.lrc_file, new_file);
}
else
{
rb->remove(current.lrc_file);
rb->rename(new_file, current.lrc_file);
}
}
else
{
rb->remove(new_file);
rb->splash(HZ, "Could not save changes.");
}
rb->reload_directory();
current.changed_lrc = false;
}
static int timetag_editor(void)
{
struct gui_synclist gui_editor;
struct lrc_line *lrc_line;
bool exit = false;
int button, idx, selected = 0;
if (current.id3 == NULL || !current.ll_head)
{
rb->splash(HZ, "No lyrics");
return LRC_GOTO_MAIN;
}
get_lrc_line(-1); /* initialize static variables */
for (lrc_line = current.ll_head, idx = 0;
lrc_line; lrc_line = lrc_line->next, idx++)
{
long time_start = get_time_start(lrc_line);
long time_end = get_time_start(lrc_line->next);
long elapsed = current.id3->elapsed;
if (time_start <= elapsed && time_end > elapsed)
selected = idx;
}
rb->gui_synclist_init(&gui_editor, &get_lrc_timeline, NULL, false, 1, NULL);
rb->gui_synclist_set_nb_items(&gui_editor, current.nlrcline);
rb->gui_synclist_set_icon_callback(&gui_editor, get_icon);
rb->gui_synclist_set_title(&gui_editor, "Timetag Editor",
Icon_Menu_functioncall);
rb->gui_synclist_select_item(&gui_editor, selected);
rb->gui_synclist_draw(&gui_editor);
while (!exit)
{
button = rb->get_action(CONTEXT_TREE, TIMEOUT_BLOCK);
if (rb->gui_synclist_do_button(&gui_editor, &button,
LIST_WRAP_UNLESS_HELD))
continue;
switch (button)
{
case ACTION_STD_OK:
idx = rb->gui_synclist_get_sel_pos(&gui_editor);
lrc_line = get_lrc_line(idx);
if (lrc_line)
{
set_time_start(lrc_line, current.id3->elapsed-500);
rb->gui_synclist_draw(&gui_editor);
}
break;
case ACTION_STD_CONTEXT:
idx = rb->gui_synclist_get_sel_pos(&gui_editor);
lrc_line = get_lrc_line(idx);
if (lrc_line)
{
long temp_time = get_time_start(lrc_line);
if (lrc_set_time(get_lrc_str(lrc_line), NULL,
&temp_time, 10, 0, current.length,
LST_SET_MSEC|LST_SET_SEC|LST_SET_MIN) == 1)
return PLUGIN_USB_CONNECTED;
set_time_start(lrc_line, temp_time);
rb->gui_synclist_draw(&gui_editor);
}
break;
case ACTION_TREE_STOP:
case ACTION_STD_CANCEL:
exit = true;
break;
default:
if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
return PLUGIN_USB_CONNECTED;
break;
}
}
FOR_NB_SCREENS(idx)
rb->screens[idx]->stop_scroll();
if (current.changed_lrc)
{
MENUITEM_STRINGLIST(save_menu, "Save Changes?", NULL,
"Yes", "No (save later)", "Discard All Changes")
button = 0;
exit = false;
while (!exit)
{
switch (rb->do_menu(&save_menu, &button, NULL, false))
{
case 0:
sort_lrcs();
save_changes();
exit = true;
break;
case 1:
sort_lrcs();
exit = true;
break;
case 2:
init_time_tag();
exit = true;
break;
case MENU_ATTACHED_USB:
return PLUGIN_USB_CONNECTED;
}
}
}
return LRC_GOTO_MAIN;
}
/*******************************
* Settings.
*******************************/
static void load_or_save_settings(bool save)
{
static const char config_file[] = "lrcplayer.cfg";
static struct configdata config[] = {
#ifdef HAVE_LCD_COLOR
{ TYPE_INT, 0, 0xffffff, { .int_p = &prefs.inactive_color },
"inactive color", NULL },
#endif
#ifdef HAVE_LCD_BITMAP
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.wrap }, "wrap", NULL },
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.wipe }, "wipe", NULL },
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.active_one_line },
"active one line", NULL },
{ TYPE_INT, 0, 2, { .int_p = &prefs.align }, "align", NULL },
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.statusbar_on },
"statusbar on", NULL },
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.display_title },
"display title", NULL },
#endif
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.display_time },
"display time", NULL },
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.backlight_on },
"backlight on", NULL },
{ TYPE_STRING, 0, sizeof(prefs.lrc_directory),
{ .string = prefs.lrc_directory }, "lrc directory", NULL },
{ TYPE_INT, -1, NUM_CODEPAGES-1, { .int_p = &prefs.encoding },
"encoding", NULL },
#ifdef LRC_SUPPORT_ID3
{ TYPE_BOOL, 0, 1, { .bool_p = &prefs.read_id3 }, "read id3", NULL },
#endif
};
if (!save)
{
/* initialize setting */
#if LCD_DEPTH > 1
prefs.active_color = rb->lcd_get_foreground();
prefs.inactive_color = LCD_LIGHTGRAY;
#endif
#ifdef HAVE_LCD_BITMAP
prefs.wrap = true;
prefs.wipe = true;
prefs.active_one_line = false;
prefs.align = 1; /* center */
prefs.statusbar_on = false;
prefs.display_title = true;
#endif
prefs.display_time = true;
prefs.backlight_on = false;
#ifdef LRC_SUPPORT_ID3
prefs.read_id3 = true;
#endif
rb->strcpy(prefs.lrc_directory, "/Lyrics");
prefs.encoding = -1; /* default codepage */
configfile_load(config_file, config, ARRAYLEN(config), 0);
}
else if (rb->memcmp(&old_prefs, &prefs, sizeof(prefs)))
{
rb->splash(0, "Saving Settings");
configfile_save(config_file, config, ARRAYLEN(config), 0);
}
rb->memcpy(&old_prefs, &prefs, sizeof(prefs));
}
static bool lrc_theme_menu(void)
{
enum {
#ifdef HAVE_LCD_BITMAP
LRC_MENU_STATUSBAR,
LRC_MENU_DISP_TITLE,
#endif
LRC_MENU_DISP_TIME,
#ifdef HAVE_LCD_COLOR
LRC_MENU_INACTIVE_COLOR,
#endif
LRC_MENU_BACKLIGHT,
};
int selected = 0;
bool exit = false, usb = false;
MENUITEM_STRINGLIST(menu, "Theme Settings", NULL,
#ifdef HAVE_LCD_BITMAP
"Show Statusbar", "Display Title",
#endif
"Display Time",
#ifdef HAVE_LCD_COLOR
"Inactive Colour",
#endif
"Backlight Always On");
while (!exit && !usb)
{
switch (rb->do_menu(&menu, &selected, NULL, false))
{
#ifdef HAVE_LCD_BITMAP
case LRC_MENU_STATUSBAR:
usb = rb->set_bool("Show Statusbar", &prefs.statusbar_on);
break;
case LRC_MENU_DISP_TITLE:
usb = rb->set_bool("Display Title", &prefs.display_title);
break;
#endif
case LRC_MENU_DISP_TIME:
usb = rb->set_bool("Display Time", &prefs.display_time);
break;
#ifdef HAVE_LCD_COLOR
case LRC_MENU_INACTIVE_COLOR:
usb = rb->set_color(NULL, "Inactive Colour",
&prefs.inactive_color, -1);
break;
#endif
case LRC_MENU_BACKLIGHT:
usb = rb->set_bool("Backlight Always On", &prefs.backlight_on);
break;
case MENU_ATTACHED_USB:
usb = true;
break;
default:
exit = true;
break;
}
}
return usb;
}
#ifdef HAVE_LCD_BITMAP
static bool lrc_display_menu(void)
{
enum {
LRC_MENU_WRAP,
LRC_MENU_WIPE,
LRC_MENU_ALIGN,
LRC_MENU_LINE_MODE,
};
int selected = 0;
bool exit = false, usb = false;
MENUITEM_STRINGLIST(menu, "Display Settings", NULL,
"Wrap", "Wipe", "Alignment",
"Activate Only Current Line");
struct opt_items align_names[] = {
{"Left", -1}, {"Centre", -1}, {"Right", -1},
};
while (!exit && !usb)
{
switch (rb->do_menu(&menu, &selected, NULL, false))
{
case LRC_MENU_WRAP:
usb = rb->set_bool("Wrap", &prefs.wrap);
break;
case LRC_MENU_WIPE:
usb = rb->set_bool("Wipe", &prefs.wipe);
break;
case LRC_MENU_ALIGN:
usb = rb->set_option("Alignment", &prefs.align, INT,
align_names, 3, NULL);
break;
case LRC_MENU_LINE_MODE:
usb = rb->set_bool("Activate Only Current Line",
&prefs.active_one_line);
break;
case MENU_ATTACHED_USB:
usb = true;
break;
default:
exit = true;
break;
}
}
return usb;
}
#endif /* HAVE_LCD_BITMAP */
static bool lrc_lyrics_menu(void)
{
enum {
LRC_MENU_ENCODING,
#ifdef LRC_SUPPORT_ID3
LRC_MENU_READ_ID3,
#endif
LRC_MENU_LRC_DIR,
};
int selected = 0;
bool exit = false, usb = false;
struct opt_items cp_names[NUM_CODEPAGES+1];
int old_val;
MENUITEM_STRINGLIST(menu, "Lyrics Settings", NULL,
"Encoding",
#ifdef LRC_SUPPORT_ID3
"Read ID3 tag",
#endif
"Lrc Directry");
cp_names[0].string = "Use default codepage";
cp_names[0].voice_id = -1;
for (old_val = 1; old_val < NUM_CODEPAGES+1; old_val++)
{
cp_names[old_val].string = rb->get_codepage_name(old_val-1);
cp_names[old_val].voice_id = -1;
}
while (!exit && !usb)
{
switch (rb->do_menu(&menu, &selected, NULL, false))
{
case LRC_MENU_ENCODING:
prefs.encoding++;
old_val = prefs.encoding;
usb = rb->set_option("Encoding", &prefs.encoding, INT,
cp_names, NUM_CODEPAGES+1, NULL);
if (prefs.encoding != old_val)
{
save_changes();
if (current.type < NUM_TYPES)
{
/* let reload lrc file to apply encoding setting */
reset_current_data();
}
}
prefs.encoding--;
break;
#ifdef LRC_SUPPORT_ID3
case LRC_MENU_READ_ID3:
usb = rb->set_bool("Read ID3 tag", &prefs.read_id3);
break;
#endif
case LRC_MENU_LRC_DIR:
rb->strcpy(temp_buf, prefs.lrc_directory);
if (!rb->kbd_input(temp_buf, sizeof(prefs.lrc_directory)))
rb->strcpy(prefs.lrc_directory, temp_buf);
break;
case MENU_ATTACHED_USB:
usb = true;
break;
default:
exit = true;
break;
}
}
return usb;
}
#ifdef LRC_DEBUG
static const char* lrc_debug_data(int selected, void * data,
char * buffer, size_t buffer_len)
{
(void)data;
switch (selected)
{
case 0:
rb->strlcpy(buffer, current.mp3_file, buffer_len);
break;
case 1:
rb->strlcpy(buffer, current.lrc_file, buffer_len);
break;
case 2:
rb->snprintf(buffer, buffer_len, "buf usage: %d,%d/%d",
(int)lrc_buffer_used, (int)lrc_buffer_end,
(int)lrc_buffer_size);
break;
case 3:
rb->snprintf(buffer, buffer_len, "line count: %d,%d",
current.nlrcline, current.nlrcbrpos);
break;
case 4:
rb->snprintf(buffer, buffer_len, "loaded lrc? %s",
current.loaded_lrc?"yes":"no");
break;
case 5:
rb->snprintf(buffer, buffer_len, "too many lines? %s",
current.too_many_lines?"yes":"no");
break;
default:
return NULL;
}
return buffer;
}
static bool lrc_debug_menu(void)
{
struct simplelist_info info;
rb->simplelist_info_init(&info, "Debug Menu", 6, NULL);
info.hide_selection = true;
info.scroll_all = true;
info.get_name = lrc_debug_data;
return rb->simplelist_show_list(&info);
}
#endif
/* returns one of enum lrc_screen or enum plugin_status */
static int lrc_menu(void)
{
enum {
LRC_MENU_THEME,
#ifdef HAVE_LCD_BITMAP
LRC_MENU_DISPLAY,
#endif
LRC_MENU_LYRICS,
LRC_MENU_PLAYBACK,
#ifdef LRC_DEBUG
LRC_MENU_DEBUG,
#endif
LRC_MENU_OFFSET,
LRC_MENU_TIMETAG_EDITOR,
LRC_MENU_QUIT,
};
MENUITEM_STRINGLIST(menu, "Lrcplayer Menu", NULL,
"Theme Settings",
#ifdef HAVE_LCD_BITMAP
"Display Settings",
#endif
"Lyrics Settings",
"Playback Control",
#ifdef LRC_DEBUG
"Debug Menu",
#endif
"Time Offset", "Timetag Editor",
"Quit");
int selected = 0, ret = LRC_GOTO_MENU;
bool usb = false;
while (ret == LRC_GOTO_MENU)
{
switch (rb->do_menu(&menu, &selected, NULL, false))
{
case LRC_MENU_THEME:
usb = lrc_theme_menu();
break;
#ifdef HAVE_LCD_BITMAP
case LRC_MENU_DISPLAY:
usb = lrc_display_menu();
break;
#endif
case LRC_MENU_LYRICS:
usb = lrc_lyrics_menu();
break;
case LRC_MENU_PLAYBACK:
usb = playback_control(NULL);
ret = LRC_GOTO_MAIN;
break;
#ifdef LRC_DEBUG
case LRC_MENU_DEBUG:
usb = lrc_debug_menu();
ret = LRC_GOTO_MAIN;
break;
#endif
case LRC_MENU_OFFSET:
usb = (lrc_set_time("Time Offset", "sec", &current.offset,
10, -60*1000, 60*1000,
LST_SET_MSEC|LST_SET_SEC) == 1);
ret = LRC_GOTO_MAIN;
break;
case LRC_MENU_TIMETAG_EDITOR:
ret = LRC_GOTO_EDITOR;
break;
case LRC_MENU_QUIT:
ret = PLUGIN_OK;
break;
case MENU_ATTACHED_USB:
usb = true;
break;
default:
ret = LRC_GOTO_MAIN;
break;
}
if (usb)
ret = PLUGIN_USB_CONNECTED;
}
return ret;
}
/*******************************
* Main.
*******************************/
/* returns true if song has changed to know when to load new lyrics. */
static bool check_audio_status(void)
{
static int last_audio_status = 0;
if (current.ff_rewind == -1)
current.audio_status = rb->audio_status();
current.id3 = rb->audio_current_track();
if ((last_audio_status^current.audio_status)&AUDIO_STATUS_PLAY)
{
last_audio_status = current.audio_status;
return true;
}
if (AUDIO_STOP || current.id3 == NULL)
return false;
if (rb->strcmp(current.mp3_file, current.id3->path))
{
return true;
}
return false;
}
static void ff_rewind(long time, bool resume)
{
if (AUDIO_PLAY)
{
if (!AUDIO_PAUSE)
{
resume = true;
rb->audio_pause();
}
rb->audio_ff_rewind(time);
rb->sleep(HZ/10); /* take affect seeking */
if (resume)
rb->audio_resume();
}
}
static int handle_button(void)
{
int ret = LRC_GOTO_MAIN;
static int step = 0;
int limit, button = rb->get_action(CONTEXT_WPS, HZ/10);
switch (button)
{
case ACTION_WPS_BROWSE:
#if CONFIG_KEYPAD == ONDIO_PAD
/* ondio doesn't have ACTION_WPS_MENU,
so use ACTION_WPS_BROWSE for menu */
ret = LRC_GOTO_MENU;
break;
#endif
case ACTION_WPS_STOP:
save_changes();
ret = PLUGIN_OK;
break;
case ACTION_WPS_PLAY:
if (AUDIO_STOP && rb->global_status->resume_index != -1)
{
if (rb->playlist_resume() != -1)
{
rb->playlist_start(rb->global_status->resume_index,
rb->global_status->resume_offset);
}
}
else if (AUDIO_PAUSE)
rb->audio_resume();
else
rb->audio_pause();
break;
case ACTION_WPS_SEEKFWD:
case ACTION_WPS_SEEKBACK:
if (AUDIO_STOP)
break;
if (current.ff_rewind > -1)
{
if (button == ACTION_WPS_SEEKFWD)
/* fast forwarding, calc max step relative to end */
limit = (current.length - current.ff_rewind) * 3 / 100;
else
/* rewinding, calc max step relative to start */
limit = (current.ff_rewind) * 3 / 100;
limit = MAX(limit, 500);
if (step > limit)
step = limit;
if (button == ACTION_WPS_SEEKFWD)
current.ff_rewind += step;
else
current.ff_rewind -= step;
if (current.ff_rewind > current.length-100)
current.ff_rewind = current.length-100;
if (current.ff_rewind < 0)
current.ff_rewind = 0;
/* smooth seeking by multiplying step by: 1 + (2 ^ -accel) */
step += step >> (rb->global_settings->ff_rewind_accel + 3);
}
else
{
current.ff_rewind = current.elapsed;
if (!AUDIO_PAUSE)
rb->audio_pause();
step = 1000 * rb->global_settings->ff_rewind_min_step;
}
break;
case ACTION_WPS_STOPSEEK:
if (current.ff_rewind == -1)
break;
ff_rewind(current.ff_rewind, !AUDIO_PAUSE);
current.elapsed = current.ff_rewind;
current.ff_rewind = -1;
break;
case ACTION_WPS_SKIPNEXT:
rb->audio_next();
break;
case ACTION_WPS_SKIPPREV:
if (current.elapsed < 3000)
rb->audio_prev();
else
ff_rewind(0, false);
break;
case ACTION_WPS_VOLDOWN:
limit = rb->sound_min(SOUND_VOLUME);
if (--rb->global_settings->volume < limit)
rb->global_settings->volume = limit;
rb->sound_set(SOUND_VOLUME, rb->global_settings->volume);
break;
case ACTION_WPS_VOLUP:
limit = rb->sound_max(SOUND_VOLUME);
if (++rb->global_settings->volume > limit)
rb->global_settings->volume = limit;
rb->sound_set(SOUND_VOLUME, rb->global_settings->volume);
break;
case ACTION_WPS_CONTEXT:
ret = LRC_GOTO_EDITOR;
break;
case ACTION_WPS_MENU:
ret = LRC_GOTO_MENU;
break;
default:
if(rb->default_event_handler(button) == SYS_USB_CONNECTED)
ret = PLUGIN_USB_CONNECTED;
break;
}
return ret;
}
static int lrc_main(void)
{
int ret = LRC_GOTO_MAIN;
int i;
long id3_timeout = 0;
bool update_display_state = true;
#ifdef HAVE_LCD_BITMAP
/* y offset of vp_lyrics */
int h = (prefs.display_title?font_ui_height:0)+
(prefs.display_time?SYSFONT_HEIGHT*2:0);
#endif
FOR_NB_SCREENS(i)
{
#ifdef HAVE_LCD_BITMAP
rb->viewportmanager_theme_enable(i, prefs.statusbar_on, &vp_info[i]);
vp_lyrics[i] = vp_info[i];
vp_lyrics[i].flags &= ~VP_FLAG_ALIGNMENT_MASK;
vp_lyrics[i].y += h;
vp_lyrics[i].height -= h;
#else
rb->viewport_set_defaults(&vp_lyrics[i], i);
if (prefs.display_time)
{
vp_lyrics[i].y += 1; /* time */
vp_lyrics[i].height -= 1;
}
#endif
}
if (prefs.backlight_on)
backlight_ignore_timeout();
#ifdef HAVE_LCD_BITMAP
/* in case settings that may affect break position
* are changed (statusbar_on and wrap). */
if (!current.too_many_lines)
calc_brpos(NULL, 0);
#endif
while (ret == LRC_GOTO_MAIN)
{
if (check_audio_status())
{
update_display_state = true;
if (AUDIO_STOP)
{
current.id3 = NULL;
id3_timeout = 0;
}
else if (rb->strcmp(current.mp3_file, current.id3->path))
{
save_changes();
reset_current_data();
rb->strcpy(current.mp3_file, current.id3->path);
id3_timeout = *rb->current_tick+HZ*3;
current.found_lrc = false;
}
}
if (current.id3 && current.id3->length)
{
if (current.ff_rewind == -1)
{
long di = current.id3->elapsed - current.elapsed;
if (di < -250 || di > 0)
current.elapsed = current.id3->elapsed;
}
else
current.elapsed = current.ff_rewind;
current.length = current.id3->length;
if (current.elapsed > current.length)
current.elapsed = current.length;
}
else
{
current.elapsed = 0;
current.length = 1;
}
if (current.id3 && id3_timeout &&
(TIME_AFTER(*rb->current_tick, id3_timeout) ||
current.id3->artist))
{
update_display_state = true;
id3_timeout = 0;
current.found_lrc = find_lrc_file();
#ifdef LRC_SUPPORT_ID3
if (!current.found_lrc && prefs.read_id3)
{
/* no lyrics file found. try to read from id3 tag. */
current.found_lrc = read_id3();
}
#endif
}
else if (current.found_lrc && !current.loaded_lrc)
{
/* current.loaded_lrc is false after changing encode setting */
update_display_state = true;
display_state();
load_lrc_file();
}
if (update_display_state)
{
#ifdef HAVE_LCD_BITMAP
if (current.type == TXT || current.type == ID3_USLT)
current.wipe = false;
else
current.wipe = prefs.wipe;
#endif
display_state();
update_display_state = false;
}
if (AUDIO_PLAY)
{
if (prefs.display_time)
display_time();
if (!id3_timeout)
display_lrcs();
}
ret = handle_button();
}
#ifdef HAVE_LCD_BITMAP
FOR_NB_SCREENS(i)
rb->viewportmanager_theme_undo(i, false);
#endif
if (prefs.backlight_on)
backlight_use_settings();
return ret;
}
/* this is the plugin entry point */
enum plugin_status plugin_start(const void* parameter)
{
int ret = LRC_GOTO_MAIN;
/* initialize settings. */
load_or_save_settings(false);
#ifdef HAVE_LCD_BITMAP
rb->lcd_getstringsize("O", NULL, &font_ui_height);
#endif
lrc_buffer = rb->plugin_get_buffer(&lrc_buffer_size);
lrc_buffer = (void *)(((long)lrc_buffer+3)&~3); /* 4 bytes aligned */
lrc_buffer_size = (lrc_buffer_size - 4)&~3;
reset_current_data();
current.id3 = NULL;
current.mp3_file[0] = 0;
current.lrc_file[0] = 0;
current.ff_rewind = -1;
current.found_lrc = false;
if (parameter && check_audio_status())
{
const char *ext;
rb->strcpy(current.mp3_file, current.id3->path);
/* use passed parameter as lrc file. */
rb->strcpy(current.lrc_file, parameter);
if (!rb->file_exists(current.lrc_file))
{
rb->splash(HZ, "Specified file dose not exist.");
return PLUGIN_ERROR;
}
ext = rb->strrchr(current.lrc_file, '.');
if (!ext) ext = current.lrc_file;
for (current.type = 0; current.type < NUM_TYPES; current.type++)
{
if (!rb->strcasecmp(ext, extentions[current.type]))
break;
}
if (current.type == NUM_TYPES)
{
rb->splashf(HZ, "%s is not supported", ext);
return PLUGIN_ERROR;
}
current.found_lrc = true;
}
while (ret >= PLUGIN_OTHER)
{
switch (ret)
{
case LRC_GOTO_MAIN:
ret = lrc_main();
break;
case LRC_GOTO_MENU:
ret = lrc_menu();
break;
case LRC_GOTO_EDITOR:
ret = timetag_editor();
break;
default:
ret = PLUGIN_ERROR;
break;
}
}
load_or_save_settings(true);
return ret;
}
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