wps-display.c

编译后直接运行的ＭＰ３播放器全部Ｃ语言源代码 一个包含FAT文件系统、系统引导 Boot、FLASH Driver等内容的

    if (refresh_mode == WPS_REFRESH_ALL)
    {
        for (i=0; i<MAX_LINES; i++)
        {
            curr_subline[i] = SUBLINE_RESET;
        }
    }

#ifdef HAVE_LCD_CHARCELLS
    for (i=0; i<8; i++) {
       if (wps_progress_pat[i]==0)
           wps_progress_pat[i]=lcd_get_locked_pattern();
    }
#endif

    if (!id3)
    {
        lcd_stop_scroll();
        return false;
    }

    ff_rewind_count = ffwd_offset;

    for (i = 0; i < MAX_LINES; i++)
    {
        new_subline_refresh = false;
        only_one_subline = false;

        /* if time to advance to next sub-line  */
        if (TIME_AFTER(current_tick,  subline_expire_time[i] - 1) ||
           (curr_subline[i] == SUBLINE_RESET)) 
        {
            /* search all sublines until the next subline with time > 0
               is found or we get back to the subline we started with */
            if (curr_subline[i] == SUBLINE_RESET)
                search_start = 0;
            else
                search_start = curr_subline[i];
            for (search=0; search<MAX_SUBLINES; search++) 
            {
                curr_subline[i]++;

                /* wrap around if beyond last defined subline or MAX_SUBLINES */
                if ((!format_lines[i][curr_subline[i]]) ||
                    (curr_subline[i] == MAX_SUBLINES))
                {
                    if (curr_subline[i] == 1)
                        only_one_subline = true;
                    curr_subline[i] = 0;
                }

                /* if back where we started after search or
                   only one subline is defined on the line */
                if (((search > 0) && (curr_subline[i] == search_start)) ||
                    only_one_subline)
                {
                    /* no other subline with a time > 0 exists */
                    subline_expire_time[i] = current_tick  + 100 * HZ;
                    break;
                }
                else
                {
                    /* get initial time multiplier and 
                       line type flags for this subline */
                    format_display(buf, sizeof(buf), id3, 
                                   format_lines[i][curr_subline[i]], 
                                   &time_mult[i][curr_subline[i]],
                                   &line_type[i][curr_subline[i]]);
                   
                    /* only use this subline if subline time > 0 */
                    if (time_mult[i][curr_subline[i]] > 0)
                    {
                        new_subline_refresh = true;
                        subline_expire_time[i] = current_tick  + 
                            BASE_SUBLINE_TIME * time_mult[i][curr_subline[i]]; 
                        break;
                    }
                }
            }

        }
        
        update_line = false;

        if ( !format_lines[i][curr_subline[i]] )
            break;

        if ((line_type[i][curr_subline[i]] & refresh_mode) || 
            (refresh_mode == WPS_REFRESH_ALL) ||
            new_subline_refresh)
        {
            flags = 0;
            format_display(buf, sizeof(buf), id3,
                           format_lines[i][curr_subline[i]],
                           &time_mult[i][curr_subline[i]],
                           &flags);
            line_type[i][curr_subline[i]] = flags;

#ifdef HAVE_LCD_BITMAP
            /* progress */
            if (flags & refresh_mode & WPS_REFRESH_PLAYER_PROGRESS) {
                int percent=
                    id3->length?
                    (id3->elapsed + ff_rewind_count) * 100 / id3->length:0;
                slidebar(0, i*h + offset + 1, LCD_WIDTH, 6, 
                         percent, Grow_Right);
                update_line = true;
            }
            if (flags & refresh_mode & WPS_REFRESH_PEAK_METER) {
                /* peak meter */
                int peak_meter_y;

                update_line = true;
                peak_meter_y = i * h + offset;

                /* The user might decide to have the peak meter in the last 
                   line so that it is only displayed if no status bar is 
                   visible. If so we neither want do draw nor enable the
                   peak meter. */
                if (peak_meter_y + h <= LCD_HEIGHT) {
                    /* found a line with a peak meter -> remember that we must
                       enable it later */
                    enable_pm = true;
                    peak_meter_draw(0, peak_meter_y, LCD_WIDTH,
                                    MIN(h, LCD_HEIGHT - peak_meter_y));
                }
            }
#else
            /* progress */
            if (flags & refresh_mode & WPS_REFRESH_PLAYER_PROGRESS) {
                if (full_line_progressbar)
                    draw_player_fullbar(buf, sizeof(buf),
                                        id3, ff_rewind_count);
                else
                    draw_player_progress(id3, ff_rewind_count);
            }
#endif

            if (flags & WPS_REFRESH_SCROLL) {

                /* scroll line */
                if ((refresh_mode & WPS_REFRESH_SCROLL) ||
                    new_subline_refresh) {
                    lcd_puts_scroll(0, i, buf);
                    update_line = true;
                }
            }
            else if (flags & (WPS_REFRESH_DYNAMIC | WPS_REFRESH_STATIC))
            {
                /* dynamic / static line */
                if ((refresh_mode & (WPS_REFRESH_DYNAMIC|WPS_REFRESH_STATIC)) ||
                    new_subline_refresh)
                {
                    update_line = true;
                    lcd_puts(0, i, buf);
                }
            }
        }
#ifdef HAVE_LCD_BITMAP
        if (update_line) {
            lcd_update_rect(0, i*h + offset, LCD_WIDTH, h);
        }
#endif
    }
#ifdef HAVE_LCD_BITMAP
    /* Now we know wether the peak meter is used. 
       So we can enable / disable the peak meter thread */
    peak_meter_enabled = enable_pm;
#endif

#ifndef SIMULATOR
    if (global_settings.caption_backlight && id3) {
        /* turn on backlight n seconds before track ends, and turn it off n
           seconds into the new track. n == backlight_timeout, or 5s */
        int n = 
            backlight_timeout_value[global_settings.backlight_timeout] * 1000;

        if ( n < 1000 )
            n = 5000; /* use 5s if backlight is always on or off */
 
        if ((id3->elapsed < 1000) ||
            ((id3->length - id3->elapsed) < (unsigned)n))
            backlight_on();
    }
#endif
    return true;
}

bool wps_display(struct mp3entry* id3)
{
    lcd_clear_display();

    if (!id3 && !(mpeg_status() & MPEG_STATUS_PLAY))
    {
#ifdef HAVE_LCD_CHARCELLS
        lcd_puts(0, 0, str(LANG_END_PLAYLIST_PLAYER));
#else
        lcd_puts(0, 2, str(LANG_END_PLAYLIST_RECORDER));
        lcd_update();
#endif
        global_settings.resume_index = -1;
        status_set_playmode(STATUS_STOP);
        status_draw(true);
        sleep(HZ);
        return true;
    }
    else
    {
        if (!wps_loaded) {
            if ( !format_buffer[0] ) {
#ifdef HAVE_LCD_BITMAP
                wps_format("%s%?it<%?in<%in. |>%it|%fn>\n"
                           "%s%?ia<%ia|%?d2<%d2|(root)>>\n"
                           "%s%?id<%id|%?d1<%d1|(root)>> %?iy<(%iy)|>\n"
                           "\n"
                           "%pc/%pt [%pp:%pe]\n"
                           "%fbkBit %?fv<avg|> %?iv<(id3v%iv)|(no id3)>\n"
                           "%pb\n"
                           "%pm\n");
#else
                wps_format("%s%pp/%pe: %?it<%it|%fn> - %?ia<%ia|%d2> - %?id<%id|%d1>\n"
                           "%pc%?ps<*|/>%pt\n");
#endif
            }
        }
    }
    yield();
    wps_refresh(id3, 0, WPS_REFRESH_ALL);
    status_draw(true);
    lcd_update();
    return false;
}

#ifdef HAVE_LCD_CHARCELLS
static bool draw_player_progress(struct mp3entry* id3, int ff_rewwind_count)
{
    char player_progressbar[7];
    char binline[36];
    int songpos = 0;
    int i,j;

    if (!id3)
        return false;

    memset(binline, 1, sizeof binline);
    memset(player_progressbar, 1, sizeof player_progressbar);

    if(id3->elapsed >= id3->length)
        songpos = 0;
    else
    {
        if(wps_time_countup == false)
            songpos = ((id3->elapsed - ff_rewwind_count) * 36) / id3->length;
        else
            songpos = ((id3->elapsed + ff_rewwind_count) * 36) / id3->length;
    }
    for (i=0; i < songpos; i++)
        binline[i] = 0;

    for (i=0; i<=6; i++) {
        for (j=0;j<5;j++) {
            player_progressbar[i] <<= 1;
            player_progressbar[i] += binline[i*5+j];
        }
    }
    lcd_define_pattern(wps_progress_pat[0], player_progressbar);
    return true;
}

static void draw_player_fullbar(char* buf, int buf_size,
                                struct mp3entry* id3, int ff_rewwind_count)
{
    int i,j,lcd_char_pos;

    char player_progressbar[7];
    char binline[36];
    char numbers[12][4][3]={{{1,1,1},{1,0,1},{1,0,1},{1,1,1}},/*0*/
                            {{0,1,0},{1,1,0},{0,1,0},{0,1,0}},/*1*/
                            {{1,1,1},{0,0,1},{0,1,0},{1,1,1}},/*2*/
                            {{1,1,1},{0,0,1},{0,1,1},{1,1,1}},/*3*/
                            {{1,0,0},{1,1,0},{1,1,1},{0,1,0}},/*4*/
                            {{1,1,1},{1,1,0},{0,0,1},{1,1,0}},/*5*/
                            {{1,1,1},{1,0,0},{1,1,1},{1,1,1}},/*6*/
                            {{1,1,1},{0,0,1},{0,1,0},{1,0,0}},/*7*/
                            {{1,1,1},{1,1,1},{1,0,1},{1,1,1}},/*8*/
                            {{1,1,1},{1,1,1},{0,0,1},{1,1,1}},/*9*/
                            {{0,0,0},{0,1,0},{0,0,0},{0,1,0}},/*:*/
                            {{0,0,0},{0,0,0},{0,0,0},{0,0,0}}};/*<blank>*/

    int songpos = 0;
    int digits[6];
    int time;
    char timestr[7];
    
    for (i=0; i < buf_size; i++)
        buf[i] = ' ';
           
    if(id3->elapsed >= id3->length)
        songpos = 55;
    else {
        if(wps_time_countup == false)
            songpos = ((id3->elapsed - ff_rewwind_count) * 55) / id3->length;
        else
            songpos = ((id3->elapsed + ff_rewwind_count) * 55) / id3->length;
    }

    time=(id3->elapsed + ff_rewind_count);
   
    memset(timestr, 0, sizeof(timestr));
    format_time(timestr, sizeof(timestr), time);
    for(lcd_char_pos=0; lcd_char_pos<6; lcd_char_pos++) {
        digits[lcd_char_pos] = map_fullbar_char(timestr[lcd_char_pos]);
    }

    /* build the progressbar-icons */
    for (lcd_char_pos=0; lcd_char_pos<6; lcd_char_pos++) {
        memset(binline, 0, sizeof binline);
        memset(player_progressbar, 0, sizeof player_progressbar);

        /* make the character (progressbar & digit)*/
        for (i=0; i<7; i++) {
            for (j=0;j<5;j++) {
                /* make the progressbar */
                if (lcd_char_pos==(songpos/5)) {
                    /* partial */
                    if ((j<(songpos%5))&&(i>4))
                        binline[i*5+j] = 1;
                    else
                        binline[i*5+j] = 0;
                }
                else {
                    if (lcd_char_pos<(songpos/5)) {
                        /* full character */
                        if (i>4)
                            binline[i*5+j] = 1;
                    }
                }
                /* insert the digit */
                if ((j<3)&&(i<4)) {
                    if (numbers[digits[lcd_char_pos]][i][j]==1)
                        binline[i*5+j] = 1;
                }
            }
        }
         
        for (i=0; i<=6; i++) {
            for (j=0;j<5;j++) {
                player_progressbar[i] <<= 1;
                player_progressbar[i] += binline[i*5+j];
            }
        }
       
        lcd_define_pattern(wps_progress_pat[lcd_char_pos+1],player_progressbar);
        buf[lcd_char_pos]=wps_progress_pat[lcd_char_pos+1];
       
    }

    /* make rest of the progressbar if necessary */
    if (songpos/5>5) {
   
        /* set the characters positions that use the full 5 pixel wide bar */
        for (lcd_char_pos=6; lcd_char_pos < (songpos/5); lcd_char_pos++)
            buf[lcd_char_pos] = 0x86; /* '_' */

        /* build the partial bar character for the tail character position */
        memset(binline, 0, sizeof binline);
        memset(player_progressbar, 0, sizeof player_progressbar);

        for (i=5; i<7; i++) {
            for (j=0;j<5;j++) {
                if (j<(songpos%5)) {
                    binline[i*5+j] = 1;
                }
            }
        }
       
        for (i=0; i<7; i++) {
            for (j=0;j<5;j++) {
                player_progressbar[i] <<= 1;
                player_progressbar[i] += binline[i*5+j];
            }
        }
       
        lcd_define_pattern(wps_progress_pat[7],player_progressbar);
           
        buf[songpos/5]=wps_progress_pat[7];
    }
}

static char map_fullbar_char(char ascii_val)
{
    if (ascii_val >= '0' && ascii_val <= '9') {
        return(ascii_val - '0');
    }
    else if (ascii_val == ':') {
        return(10);
    }
    else
        return(11); /* anything besides a number or ':' is mapped to <blank> */
}


#endif

/* -----------------------------------------------------------------
 * vim: et sw=4 ts=8 sts=4 tw=78
 */