apps/plugins/splitedit.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2002 Philipp Pertermann
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #include "plugin.h"
  23
  24 PLUGIN_HEADER
  25
  26 /* variable button definitions */
  27 #if CONFIG_KEYPAD == RECORDER_PAD
  28 #define SPLITEDIT_QUIT BUTTON_OFF
  29 #define SPLITEDIT_PLAY BUTTON_PLAY
  30 #define SPLITEDIT_SAVE BUTTON_F1
  31 #define SPLITEDIT_LOOP_MODE BUTTON_F2
  32 #define SPLITEDIT_SCALE BUTTON_F3
  33 #define SPLITEDIT_SPEED50 (BUTTON_ON | BUTTON_LEFT)
  34 #define SPLITEDIT_SPEED100 (BUTTON_ON | BUTTON_PLAY)
  35 #define SPLITEDIT_SPEED150 (BUTTON_ON | BUTTON_RIGHT)
  36 #define SPLITEDIT_MENU_RUN BUTTON_PLAY
  37
  38 #elif CONFIG_KEYPAD == ONDIO_PAD
  39 #define SPLITEDIT_QUIT BUTTON_OFF
  40 #define SPLITEDIT_PLAY_PRE BUTTON_MENU
  41 #define SPLITEDIT_PLAY (BUTTON_MENU | BUTTON_REL)
  42 #define SPLITEDIT_SAVE (BUTTON_MENU | BUTTON_LEFT)
  43 #define SPLITEDIT_LOOP_MODE (BUTTON_MENU | BUTTON_UP)
  44 #define SPLITEDIT_SCALE (BUTTON_MENU | BUTTON_RIGHT)
  45 #define SPLITEDIT_MENU_RUN BUTTON_RIGHT
  46
  47 #elif CONFIG_KEYPAD == IRIVER_H100_PAD
  48 #define SPLITEDIT_QUIT BUTTON_OFF
  49 #define SPLITEDIT_PLAY BUTTON_ON
  50 #define SPLITEDIT_SAVE BUTTON_SELECT
  51 #define SPLITEDIT_LOOP_MODE BUTTON_MODE
  52 #define SPLITEDIT_SCALE (BUTTON_REC | BUTTON_UP)
  53 #define SPLITEDIT_SPEED50 (BUTTON_REC | BUTTON_LEFT)
  54 #define SPLITEDIT_SPEED100 (BUTTON_REC | BUTTON_DOWN)
  55 #define SPLITEDIT_SPEED150 (BUTTON_REC | BUTTON_RIGHT)
  56 #define SPLITEDIT_MENU_RUN BUTTON_RIGHT
  57
  58 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
  59 #define SPLITEDIT_QUIT      (BUTTON_REC | BUTTON_REW)
  60 #define SPLITEDIT_PLAY      (BUTTON_REC | BUTTON_FFWD)
  61 #define SPLITEDIT_SAVE       BUTTON_FFWD
  62 #define SPLITEDIT_LOOP_MODE  BUTTON_REW
  63 #define SPLITEDIT_SCALE      BUTTON_UP
  64 #define SPLITEDIT_SPEED50    BUTTON_LEFT
  65 #define SPLITEDIT_SPEED100   BUTTON_DOWN
  66 #define SPLITEDIT_SPEED150   BUTTON_RIGHT
  67 #define SPLITEDIT_MENU_RUN   BUTTON_PLAY
  68
  69 #define SPLITEDIT_RC_QUIT BUTTON_RC_STOP
  70 #endif
  71
  72 #define BMPHEIGHT 7
  73 #define BMPWIDTH 13
  74 unsigned char LOOP_BMP[][13] =
  75 {
  76   {0xfc,0x00,0x10,0x11,0x93,0x7f,0x13,0x11,0x7c,0x38,0x10,0x00,0x7c}, /*ALL */
  77   {0x81,0x03,0x7f,0x03,0x91,0x10,0x10,0x10,0x7c,0x38,0x10,0x00,0x7c}, /*FROM*/
  78   {0xfc,0x00,0x10,0x10,0x90,0x10,0x7c,0x38,0x11,0x03,0x7f,0x03,0x01}, /*TO  */
  79   {0x80,0x10,0x10,0x11,0x93,0x7f,0x13,0x11,0x10,0x7c,0x38,0x10,0x00}, /*FREE*/
  80 };
  81
  82 unsigned char CUT_BMP[] =
  83 {
  84   0xc1,0x63,0x63,0x36,0xb6,0x1c,0x1c,0x36,0x77,0x55,0x55,0x55,0x32,
  85 };
  86
  87 unsigned char SCALE_BMP[][13] =
  88 {
  89   {0x80,0x06,0x49,0x66,0xb0,0x18,0x0c,0x06,0x33,0x49,0x30,0x00,0x00}, /*lin*/
  90   {0x80,0x30,0x78,0x48,0xff,0x7f,0x00,0x7f,0x7f,0x48,0x78,0x30,0x00}, /*db*/
  91 };
  92
  93 #define TIMEBAR_Y 9
  94 #define TIMEBAR_HEIGHT 4
  95
  96 #define OSCI_X 0
  97 #define OSCI_Y (TIMEBAR_Y + TIMEBAR_HEIGHT + 1)
  98 #define OSCI_WIDTH LCD_WIDTH
  99 #define OSCI_HEIGHT (LCD_HEIGHT - BMPHEIGHT - OSCI_Y - 1)
 100
 101 /* Indices of the menu items in the save editor, see save_editor */
 102 #define SE_PART1_SAVE 0
 103 #define SE_PART1_NAME 1
 104 #define SE_PART2_SAVE 2
 105 #define SE_PART2_NAME 3
 106 #define SE_SAVE 4
 107 #define SE_COUNT 5
 108
 109 /* contains the file name of the song that is to be split */
 110 static char path_mp3[MAX_PATH];
 111
 112 /* Exit code of this plugin */
 113 static enum plugin_status splitedit_exit_code = PLUGIN_OK;
 114
 115 /* The range in time that the displayed aerea comprises */
 116 static unsigned int range_start = 0;
 117 static unsigned int range_end = 0;
 118
 119 /* The range in time that is being looped */
 120 static unsigned int play_start = 0;
 121 static unsigned int play_end = 0;
 122
 123 /* Point in time (pixel) at which the split mark is set */
 124 static int split_x = OSCI_X + (OSCI_WIDTH / 2);
 125
 126 /* Contains the peak values */
 127 static unsigned char osci_buffer[OSCI_WIDTH];
 128
 129 /* if true peak values from a previous loop are only overwritten
 130    if the new value is greater than the old value */
 131 static bool osci_valid = false;
 132
 133 /**
 134  * point in time from which on the osci_buffer is invalid
 135  * if set to ~(unsigned int)0 the entire osci_buffer is invalid
 136  */
 137 static unsigned int validation_start = ~(unsigned int)0;
 138
 139 /* all the visible aerea is looped */
 140 #define LOOP_MODE_ALL  0
 141
 142 /* loop starts at split point, ends at right visible border */
 143 #define LOOP_MODE_FROM 1
 144
 145 /* loop start at left visible border, ends at split point */
 146 #define LOOP_MODE_TO   2
 147
 148 /* let the song play without looping */
 149 #define LOOP_MODE_FREE 3
 150
 151 /* see LOOP_MODE_XXX constants vor valid values */
 152 static int loop_mode = LOOP_MODE_FREE;
 153
 154 /* minimal allowed timespan (ms) of the visible (and looped) aerea*/
 155 #define MIN_RANGE_SIZE 1000
 156
 157 /* Format time into buf.
 158  *
 159  * buf      - buffer to format to.
 160  * buf_size - size of buffer.
 161  * time     - time to format, in milliseconds.
 162  */
 163 static void format_time_ms(char* buf, int buf_size, int time)
 164 {
 165     rb->snprintf(buf, buf_size, "%d:%02d:%03d", time / 60000,
 166         time % 60000 / 1000, (time % 60000) % 1000);
 167 }
 168
 169 /**
 170  * converts screen coordinate (pixel) to time (ms)
 171  */
 172 static int xpos_to_time(int xpos)
 173 {
 174     int retval = 0;
 175     int range = range_end - range_start;
 176     retval = range_start + (((xpos - OSCI_X) * range) / OSCI_WIDTH);
 177     return retval;
 178 }
 179
 180 /**
 181  * Converts time (ms) to screen coordinates (pixel).
 182  */
 183 static int time_to_xpos(unsigned int time)
 184 {
 185     int retval = OSCI_X;
 186
 187     /* clip the range */
 188     if (time < range_start)
 189     {
 190         retval = OSCI_X;
 191     }
 192     else
 193     if (time >= range_end)
 194     {
 195         retval = OSCI_X + OSCI_WIDTH;
 196     }
 197
 198     /* do the calculation */
 199     else
 200     {
 201         int range = range_end - range_start;
 202         retval = OSCI_X + ((time - range_start) * OSCI_WIDTH) / range ;
 203     }
 204     return retval;
 205 }
 206
 207 /**
 208  * Updates the display of the textual data only.
 209  */
 210 static void update_data(void)
 211 {
 212     char buf[20];
 213     char timebuf[10];
 214     int w, h;
 215
 216     /* split point */
 217     format_time_ms(timebuf, sizeof buf, xpos_to_time(split_x));
 218     rb->snprintf(buf, sizeof buf, "Split at: %s", timebuf);
 219
 220     rb->lcd_getstringsize(buf, &w, &h);
 221
 222     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 223     rb->lcd_fillrect(0, 0, LCD_WIDTH, h);
 224     rb->lcd_set_drawmode(DRMODE_SOLID);
 225     rb->lcd_puts(0, 0, buf);
 226     rb->lcd_update_rect(0, 0, LCD_WIDTH, h);
 227 }
 228
 229 /**
 230  * Displays which part of the song is visible
 231  * in the osci.
 232  */
 233 static void update_timebar(struct mp3entry *mp3)
 234 {
 235     rb->gui_scrollbar_draw
 236     (
 237         rb->screens[SCREEN_MAIN],0, TIMEBAR_Y, LCD_WIDTH, TIMEBAR_HEIGHT,
 238         mp3->length, range_start, range_end,
 239         HORIZONTAL
 240     );
 241     rb->lcd_update_rect(0, TIMEBAR_Y, LCD_WIDTH, TIMEBAR_HEIGHT);
 242 }
 243
 244 /**
 245  * Marks the entire area of the osci buffer invalid.
 246  * It will be drawn with new values in the next loop.
 247  */
 248 void splitedit_invalidate_osci(void)
 249 {
 250     osci_valid = false;
 251     validation_start = ~(unsigned int)0;
 252 }
 253
 254 /**
 255  * Returns the loop mode. See the LOOP_MODE_XXX constants above.
 256  */
 257 int splitedit_get_loop_mode(void)
 258 {
 259     return loop_mode;
 260 }
 261
 262 /**
 263  * Updates the icons that display the Fn key hints.
 264  */
 265 static void update_icons(void)
 266 {
 267     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 268     rb->lcd_fillrect(0, LCD_HEIGHT - BMPHEIGHT, LCD_WIDTH, BMPHEIGHT);
 269     rb->lcd_set_drawmode(DRMODE_SOLID);
 270
 271     /* The CUT icon */
 272     rb->lcd_mono_bitmap(CUT_BMP,
 273         LCD_WIDTH / 3 / 2 - BMPWIDTH / 2, LCD_HEIGHT - BMPHEIGHT,
 274         BMPWIDTH, BMPHEIGHT);
 275
 276     /* The loop mode icon */
 277     rb->lcd_mono_bitmap(LOOP_BMP[splitedit_get_loop_mode()],
 278         LCD_WIDTH/3 + LCD_WIDTH/3 / 2 - BMPWIDTH/2, LCD_HEIGHT - BMPHEIGHT,
 279         BMPWIDTH, BMPHEIGHT);
 280
 281 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 282     /* The scale icon */
 283     rb->lcd_mono_bitmap(SCALE_BMP[rb->peak_meter_get_use_dbfs() ? 1 : 0],
 284         2 *LCD_WIDTH/3 + LCD_WIDTH/3 / 2 - BMPWIDTH/2, LCD_HEIGHT - BMPHEIGHT,
 285         BMPWIDTH, BMPHEIGHT);
 286 #else
 287     {
 288         static int idx;
 289         if (idx < 0 || idx > 1) idx = 0;
 290         idx = 1 - idx;
 291         rb->lcd_mono_bitmap(SCALE_BMP[idx],
 292             2 *LCD_WIDTH/3 + LCD_WIDTH/3 / 2 - BMPWIDTH/2, LCD_HEIGHT - BMPHEIGHT,
 293             BMPWIDTH, BMPHEIGHT);
 294     }
 295 #endif
 296
 297     rb->lcd_update_rect(0, LCD_HEIGHT - BMPHEIGHT, LCD_WIDTH, BMPHEIGHT);
 298 }
 299
 300 /**
 301  * Sets the loop mode. See the LOOP_MODE_XXX constants above.
 302  */
 303 void splitedit_set_loop_mode(int mode)
 304 {
 305     int old_loop_mode = loop_mode;
 306     /* range restriction */
 307     loop_mode = mode % (LOOP_MODE_FREE + 1);
 308     switch (loop_mode)
 309     {
 310         case LOOP_MODE_ALL:
 311             play_start = range_start;
 312             play_end = range_end;
 313             break;
 314
 315         case LOOP_MODE_FROM:
 316             play_start = xpos_to_time(split_x);
 317             play_end = range_end;
 318             break;
 319
 320         case LOOP_MODE_TO:
 321             play_start = range_start;
 322             play_end = xpos_to_time(split_x);
 323             break;
 324
 325         case LOOP_MODE_FREE:
 326             /* play_start is used when the song plays beyond its end */
 327             play_start = range_start;
 328             play_end = range_end;
 329             break;
 330     }
 331
 332     if (loop_mode != old_loop_mode)
 333     {
 334         update_icons();
 335     }
 336 }
 337
 338 /**
 339  * Readraws the osci without clear.
 340  */
 341 static void redraw_osci(void)
 342 {
 343     int x;
 344     for (x = 0; x < OSCI_WIDTH; x++)
 345     {
 346         if (osci_buffer[x] > 0)
 347         {
 348             rb->lcd_vline
 349             (
 350                 OSCI_X + x, OSCI_Y + OSCI_HEIGHT - 1,
 351                 OSCI_Y + OSCI_HEIGHT - osci_buffer[x] - 1
 352             );
 353         }
 354     }
 355 }
 356
 357 /**
 358  * Sets the range of time in which the user can finetune the split
 359  * point. The split point is the center of the time range.
 360  */
 361 static void set_range_by_time(
 362     struct mp3entry *mp3,
 363     unsigned int split_time,
 364     unsigned int range)
 365 {
 366     if (mp3 != NULL)
 367     {
 368         if (range < MIN_RANGE_SIZE)
 369         {
 370             range = MIN_RANGE_SIZE;
 371         }
 372         range_start = (split_time > range / 2) ? (split_time - range / 2) : 0;
 373         range_end = MIN(range_start + range, mp3->length);
 374         split_x = time_to_xpos(split_time);
 375
 376         splitedit_invalidate_osci();
 377
 378         /* this sets the play_start / play_end */
 379         splitedit_set_loop_mode(splitedit_get_loop_mode());
 380
 381         update_data();
 382         update_timebar(mp3);
 383     }
 384 }
 385
 386 /**
 387  * Set the split point in screen coordinates
 388  */
 389 void splitedit_set_split_x(int newx)
 390 {
 391     int minx = split_x - 2 > 0 ? split_x - 2: 0;
 392
 393     /* remove old split point from screen, only if moved */
 394     if (split_x != newx)
 395     {
 396         rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
 397         rb->lcd_fillrect(minx, OSCI_Y, 5, 1);
 398         rb->lcd_fillrect(split_x-1 > 0 ? split_x - 1: 0, OSCI_Y + 1, 3, 1);
 399         rb->lcd_fillrect(split_x, OSCI_Y + 2, 1, OSCI_HEIGHT - 2);
 400         rb->lcd_set_drawmode(DRMODE_SOLID);
 401         rb->lcd_update_rect(minx, OSCI_Y, 5, OSCI_HEIGHT);
 402     }
 403
 404     if (newx >= OSCI_X && newx < OSCI_X + OSCI_WIDTH)
 405     {
 406         split_x = newx;
 407         /* in LOOP_FROM / LOOP_TO modes play_start /play_end must be updated */
 408         splitedit_set_loop_mode(splitedit_get_loop_mode());
 409
 410         /* display new split time  */
 411         update_data();
 412     }
 413
 414     /* display new split point */
 415     minx = split_x - 2 > 0 ? split_x - 2: 0;
 416     rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
 417     rb->lcd_fillrect(minx, OSCI_Y, 5, 1);
 418     rb->lcd_fillrect(split_x - 1 > 0 ? split_x - 1: 0, OSCI_Y + 1, 3, 1);
 419     rb->lcd_fillrect(split_x, OSCI_Y + 2, 1, OSCI_HEIGHT - 2);
 420     rb->lcd_set_drawmode(DRMODE_SOLID);
 421     rb->lcd_update_rect(minx, OSCI_Y, 5, OSCI_HEIGHT);
 422 }
 423
 424 /**
 425  * returns the split point in screen coordinates
 426  */
 427 int splitedit_get_split_x(void)
 428 {
 429     return split_x;
 430 }
 431
 432 /**
 433  * Clears the osci area and redraws it
 434  */
 435 static void update_osci(void)
 436 {
 437     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 438     rb->lcd_fillrect(OSCI_X, OSCI_Y, OSCI_WIDTH, OSCI_HEIGHT);
 439     rb->lcd_set_drawmode(DRMODE_SOLID);
 440     redraw_osci();
 441     splitedit_set_split_x(splitedit_get_split_x());
 442     rb->lcd_update_rect(OSCI_X, OSCI_Y, OSCI_WIDTH, OSCI_HEIGHT);
 443 }
 444
 445 /**
 446  * Zooms the visable and loopable range by the factor
 447  * (counter / denominator). The split point is used as
 448  * center point of the new selected range.
 449  */
 450 static void zoom(struct mp3entry *mp3, int counter, int denominator)
 451 {
 452     unsigned char oldbuf[OSCI_WIDTH];
 453     int oldrange = range_end - range_start;
 454     int range = oldrange * counter / denominator;
 455     int i;
 456     int oldindex;
 457     int oldsplitx;
 458     int splitx;
 459     int split;
 460
 461     /* for stretching / shrinking a second buffer is needed */
 462     rb->memcpy(&oldbuf, &osci_buffer, sizeof osci_buffer);
 463
 464     /* recalculate the new range and split point */
 465     oldsplitx = split_x;
 466     split = xpos_to_time(split_x);
 467
 468     set_range_by_time(mp3, split, range);
 469     range = range_end - range_start;
 470
 471     splitx = time_to_xpos(split);
 472
 473     /* strech / shrink the existing osci buffer */
 474     for (i = 0; i < OSCI_WIDTH; i++)
 475     {
 476         /* oldindex = (i + OSCI_X - splitx) * range / oldrange + oldsplitx ;*/
 477         oldindex = (i*range / oldrange) + oldsplitx - (splitx*range /oldrange);
 478         if (oldindex >= 0 && oldindex < OSCI_WIDTH)
 479         {
 480             osci_buffer[i] = oldbuf[oldindex];
 481         }
 482         else
 483         {
 484             osci_buffer[i] = 0;
 485         }
 486     }
 487
 488     splitx = time_to_xpos(split);
 489     splitedit_set_split_x(splitx);
 490     splitedit_invalidate_osci();
 491
 492 }
 493
 494 static void scroll(struct mp3entry *mp3)
 495 {
 496     zoom(mp3, 1, 1);
 497     rb->lcd_update_rect(OSCI_X, OSCI_Y, LCD_WIDTH, OSCI_HEIGHT);
 498     update_osci();
 499     update_data();
 500 }
 501
 502 /**
 503  * Zooms in by 3/4
 504  */
 505 void splitedit_zoom_in(struct mp3entry *mp3)
 506 {
 507     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 508     rb->lcd_fillrect(OSCI_X, OSCI_Y, OSCI_WIDTH, OSCI_HEIGHT);
 509     rb->lcd_set_drawmode(DRMODE_SOLID);
 510     zoom(mp3, 3, 4);
 511     rb->lcd_update_rect(OSCI_X, OSCI_Y, LCD_WIDTH, OSCI_HEIGHT);
 512     update_osci();
 513     update_data();
 514 }
 515
 516 /**
 517  * Zooms out by 4/3
 518  */
 519 void splitedit_zoom_out(struct mp3entry *mp3)
 520 {
 521     rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 522     rb->lcd_fillrect(OSCI_X, OSCI_Y, LCD_WIDTH, OSCI_HEIGHT);
 523     rb->lcd_set_drawmode(DRMODE_SOLID);
 524     zoom(mp3, 4, 3);
 525     rb->lcd_update_rect(OSCI_X, OSCI_Y, LCD_WIDTH, OSCI_HEIGHT);
 526     update_osci();
 527     update_data();
 528 }
 529
 530 /**
 531  * Append part_no to the file name.
 532  */
 533 static void generateFileName(char* file_name, int part_no)
 534 {
 535     if (rb->strlen(file_name) <MAX_PATH)
 536     {
 537         int len = rb->strlen(file_name);
 538         int ext_len = rb->strlen(".mp3");
 539         if (rb->strcasecmp(
 540             &file_name[len - ext_len],
 541             ".mp3") == 0)
 542         {
 543             int i = 0;
 544             /* shift the extension one position to the right*/
 545             for (i = len; i > len - ext_len; i--)
 546             {
 547                 file_name[i] = file_name[i - 1];
 548             }
 549             file_name[len - ext_len] = '0' + part_no;
 550         }
 551         else
 552         {
 553             rb->splash(0, "wrong extension");
 554             rb->button_get(true);
 555             rb->button_get(true);
 556         }
 557     }
 558     else
 559     {
 560         rb->splash(0, "name too long");
 561         rb->button_get(true);
 562         rb->button_get(true);
 563
 564     }
 565
 566 }
 567
 568 /**
 569  * Copy bytes from src to dest while displaying a progressbar.
 570  * The files must be already open.
 571  */
 572 static int copy_file(
 573     int dest,
 574     int src,
 575     unsigned int bytes,
 576     int prg_y,
 577     int prg_h)
 578 {
 579     long button;
 580     unsigned char *buffer;
 581     unsigned int i = 0;
 582     ssize_t bytes_read = 1; /* ensure the for loop is executed */
 583     size_t buffer_size;
 584     buffer = rb->plugin_get_buffer(&buffer_size);
 585
 586     for (i = 0; i < bytes && bytes_read > 0; i += bytes_read)
 587     {
 588         ssize_t bytes_written;
 589         unsigned int bytes_to_read =
 590             bytes - i > buffer_size ? buffer_size : bytes - i;
 591         bytes_read = rb->read(src, buffer, bytes_to_read);
 592         bytes_written = rb->write(dest, buffer, bytes_read);
 593
 594         if (bytes_written < 0) {
 595             rb->splash(0, "Write failed in copy.");
 596             rb->button_get(true);
 597             rb->button_get(true);
 598             return -1;
 599         }
 600
 601         button = rb->button_get(false);
 602
 603         if (button == SPLITEDIT_QUIT
 604 #ifdef SPLITEDIT_RC_QUIT
 605             || button == SPLITEDIT_RC_QUIT:
 606 #endif
 607         ) {
 608             rb->splash(0, "Aborting copy.");
 609             rb->button_get(true);
 610             rb->button_get(true);
 611             return -1;
 612         }
 613
 614         rb->gui_scrollbar_draw(rb->screens[SCREEN_MAIN],0, prg_y, LCD_WIDTH,
 615                                  prg_h, bytes, 0, i, HORIZONTAL);
 616         rb->lcd_update_rect(0, prg_y, LCD_WIDTH, prg_h);
 617     }
 618
 619     return 0;
 620 }
 621
 622 /**
 623  * Save the files, if the file_name is not NULL
 624  */
 625 static int save(
 626     struct mp3entry *mp3,
 627     char *file_name1,
 628     char *file_name2,
 629     int splittime)
 630 {
 631     int file1, file2, src_file;
 632     unsigned int end = 0;
 633     int retval = 0;
 634
 635     /* Verify that file 1 doesn't exit yet */
 636     if (file_name1 != NULL)
 637     {
 638         file1 = rb->open(file_name1, O_RDONLY);
 639         if (file1 >= 0)
 640         {
 641             rb->close(file1);
 642             rb->splash(0, "File 1 exists. Please rename.");
 643             rb->button_get(true);
 644             rb->button_get(true);
 645             return -1;
 646         }
 647     }
 648
 649     /* Verify that file 2 doesn't exit yet */
 650     if (file_name2 != NULL)
 651     {
 652         file2 = rb->open(file_name2, O_RDONLY);
 653         if (file2 >= 0)
 654         {
 655             rb->close(file2);
 656             rb->splash(0, "File 2 exists. Please rename.");
 657             rb->button_get(true);
 658             rb->button_get(true);
 659             return -2;
 660         }
 661     }
 662
 663     /* find the file position of the split point */
 664     rb->audio_pause();
 665     rb->audio_ff_rewind(splittime);
 666     rb->yield();
 667     rb->yield();
 668     end = rb->audio_get_file_pos();
 669
 670     /* open the source file */
 671     src_file = rb->open(mp3->path, O_RDONLY);
 672     if (src_file >= 0)
 673     {
 674         int close_stat = 0;
 675         int x, y;
 676         long offset;
 677         unsigned long last_header = rb->mpeg_get_last_header();
 678
 679         rb->lcd_getstringsize("M", &x, &y);
 680
 681         /* Find the next frame boundary */
 682         rb->lseek(src_file, end, SEEK_SET);
 683         rb->find_next_frame(src_file, &offset, 8000, last_header);
 684         rb->lseek(src_file, 0, SEEK_SET);
 685         end += offset;
 686
 687         /* write the file 1 */
 688         if (file_name1 != NULL)
 689         {
 690             file1 = rb->open (file_name1, O_WRONLY | O_CREAT, 0666);
 691             if (file1 >= 0)
 692             {
 693                 int rc = copy_file(file1, src_file, end, y*2 + 1, y -1);
 694                 close_stat = rb->close(file1);
 695
 696                 if (close_stat != 0)
 697                 {
 698                     rb->splashf(0, "failed closing file1: error %d", close_stat);
 699                     rb->button_get(true);
 700                     rb->button_get(true);
 701                 } else {
 702                     /* If there was an error, cleanup */
 703                     if (rc) {
 704                         rb->remove(file_name1);
 705                     }
 706                 }
 707             }
 708             else
 709             {
 710                 rb->splashf(0, "Can't write File1: error %d", file1);
 711                 rb->button_get(true);
 712                 rb->button_get(true);
 713                 retval = -1;
 714             }
 715         }
 716         /* if file1 hasn't been written we're not at the split point yet */
 717         else
 718         {
 719             if (rb->lseek(src_file, end, SEEK_SET) < (off_t)end)
 720             {
 721                 rb->splashf(0, "Src file to short: error %d", src_file);
 722                 rb->button_get(true);
 723                 rb->button_get(true);
 724             }
 725         }
 726
 727         if (file_name2 != NULL)
 728         {
 729             /* write file 2 */
 730             file2 = rb->open (file_name2, O_WRONLY | O_CREAT, 0666);
 731             if (file2 >= 0)
 732             {
 733                 end = mp3->filesize - end;
 734                 int rc = copy_file(file2, src_file, end, y * 5 + 1, y -1);
 735                 close_stat = rb->close(file2);
 736
 737                 if (close_stat != 0)
 738                 {
 739                     rb->splashf(0, "failed: closing file2: error %d",
 740                                close_stat);
 741                     rb->button_get(true);
 742                     rb->button_get(true);
 743                 } else {
 744                     /* If there was an error, cleanup */
 745                     if (rc) {
 746                         rb->remove(file_name2);
 747                     }
 748                 }
 749             }
 750             else
 751             {
 752                 rb->splashf(0, "Can't write File2: error %d", file2);
 753                 rb->button_get(true);
 754                 rb->button_get(true);
 755                 retval = -2;
 756             }
 757         }
 758
 759         close_stat = rb->close(src_file);
 760         if (close_stat != 0)
 761         {
 762             rb->splashf(0, "failed: closing src: error %d", close_stat);
 763             rb->button_get(true);
 764             rb->button_get(true);
 765         }
 766     }
 767     else
 768     {
 769         rb->splash(0, "Source file not found");
 770         rb->button_get(true);
 771         rb->button_get(true);
 772         retval = -3;
 773     }
 774
 775     rb->audio_resume();
 776
 777     return retval;
 778 }
 779
 780 /**
 781  * Let the user choose which file to save with which name
 782  */
 783 static void save_editor(struct mp3entry *mp3, int splittime)
 784 {
 785     bool exit_request = false;
 786     int choice = 0;
 787     int button = BUTTON_NONE;
 788     char part1_name [MAX_PATH];
 789     char part2_name [MAX_PATH];
 790     bool part1_save = true;
 791     bool part2_save = true;
 792
 793     /* file name for left part */
 794     rb->strlcpy(part1_name, mp3->path, MAX_PATH);
 795     generateFileName(part1_name, 1);
 796
 797     /* file name for right part */
 798     rb->strlcpy(part2_name, mp3->path, MAX_PATH);
 799     generateFileName(part2_name, 2);
 800
 801     while (!exit_request)
 802     {
 803         int pos;
 804         rb->lcd_clear_display();
 805
 806         /* Save file1? */
 807         rb->lcd_puts_style(0, 0, "Save part 1?", choice == SE_PART1_SAVE);
 808         rb->lcd_puts(13, 0, part1_save?"yes":"no");
 809
 810         /* trim to display the filename without path */
 811         for (pos = rb->strlen(part1_name); pos > 0; pos--)
 812         {
 813             if (part1_name[pos] == '/')
 814                 break;
 815         }
 816         pos++;
 817
 818         /* File name 1 */
 819         rb->lcd_puts_scroll_style(0, 1,
 820             &part1_name[pos], choice == SE_PART1_NAME);
 821
 822         /* Save file2? */
 823         rb->lcd_puts_style(0, 3, "Save part 2?", choice == SE_PART2_SAVE);
 824         rb->lcd_puts(13, 3, part2_save?"yes":"no");
 825
 826         /* trim to display the filename without path */
 827         for (pos = rb->strlen(part2_name); pos > 0; pos --)
 828         {
 829             if (part2_name[pos] == '/')
 830                 break;
 831         }
 832         pos++;
 833
 834         /* File name 2 */
 835         rb->lcd_puts_scroll_style(0, 4,
 836             &part2_name[pos], choice == SE_PART2_NAME);
 837
 838         /* Save */
 839         rb->lcd_puts_style(0, 6, "Save", choice == SE_SAVE);
 840
 841         rb->lcd_update();
 842
 843
 844         button = rb->button_get(true);
 845         switch (button)
 846         {
 847         case BUTTON_UP:
 848             choice = (choice + SE_COUNT - 1) % SE_COUNT;
 849             break;
 850
 851         case BUTTON_DOWN:
 852             choice = (choice + 1) % SE_COUNT;
 853             break;
 854
 855         case SPLITEDIT_MENU_RUN:
 856             switch (choice)
 857             {
 858             int saved;
 859
 860             case SE_PART1_SAVE:
 861                 part1_save = !part1_save;
 862                 break;
 863
 864             case SE_PART1_NAME:
 865                 rb->kbd_input(part1_name, MAX_PATH);
 866                 break;
 867
 868             case SE_PART2_SAVE:
 869                 part2_save = !part2_save;
 870                 break;
 871
 872             case SE_PART2_NAME:
 873                 rb->kbd_input(part2_name, MAX_PATH);
 874                 break;
 875
 876             case SE_SAVE:
 877                 rb->lcd_stop_scroll();
 878                 rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 879                 rb->lcd_fillrect(0, 6*8, LCD_WIDTH, LCD_HEIGHT);
 880                 rb->lcd_set_drawmode(DRMODE_SOLID);
 881                 saved = save
 882                 (
 883                     mp3,
 884                     part1_save?part1_name:NULL,
 885                     part2_save?part2_name:NULL,
 886                     splittime
 887                 );
 888
 889                 /* if something failed the user may go on choosing */
 890                 if (saved >= 0)
 891                 {
 892                     exit_request = true;
 893                 }
 894                 break;
 895             }
 896             break;
 897 #ifdef SPLITEDIT_RC_QUIT
 898         case SPLITEDIT_RC_QUIT:
 899 #endif
 900         case SPLITEDIT_QUIT:
 901             exit_request = true;
 902             break;
 903
 904         default:
 905             if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
 906             {
 907                 splitedit_exit_code = PLUGIN_USB_CONNECTED;
 908                 exit_request = true;
 909             }
 910             break;
 911         }
 912     }
 913 }
 914
 915 /**
 916  * The main loop of the editor
 917  */
 918 unsigned long splitedit_editor(struct mp3entry * mp3_to_split,
 919                           unsigned int split_time,
 920                           unsigned int range)
 921 {
 922     int button = BUTTON_NONE;
 923     int lastbutton = BUTTON_NONE;
 924     struct mp3entry *mp3 = mp3_to_split;
 925     unsigned int last_elapsed = 0;
 926     int lastx = OSCI_X + (OSCI_WIDTH / 2);
 927     int retval = -1;
 928
 929     if (mp3 != NULL)
 930     {
 931         /*unsigned short scheme = SCHEME_SPLIT_EDITOR;*/
 932         bool exit_request = false;
 933         set_range_by_time(mp3, split_time, range);
 934         splitedit_set_loop_mode(LOOP_MODE_ALL);
 935         update_icons();
 936
 937         /*while (scheme != SCHEME_RETURN) {*/
 938         while (!exit_request)
 939         {
 940             unsigned int elapsed ;
 941             int x ;
 942
 943             /* get position */
 944             elapsed = mp3->elapsed;
 945             x = time_to_xpos(elapsed);
 946
 947             /* are we still in the zoomed range? */
 948             if (elapsed > play_start && elapsed < play_end)
 949             {
 950                 /* read volume info */
 951                 unsigned short volume;
 952 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
 953                 volume = rb->mas_codec_readreg(0x0c);
 954                 volume += rb->mas_codec_readreg(0x0d);
 955                 volume = volume / 2;
 956                 volume = rb->peak_meter_scale_value(volume, OSCI_HEIGHT);
 957 #else
 958                 volume = OSCI_HEIGHT / 2;
 959 #endif
 960
 961                 /* update osci_buffer */
 962                 if (osci_valid || lastx == x)
 963                 {
 964                     int index = x - OSCI_X;
 965                     osci_buffer[index] = MAX(osci_buffer[index], volume);
 966                 }
 967                 else
 968                 {
 969                     int i;
 970                     osci_buffer[x - OSCI_X] = volume;
 971                     for (i = lastx + 1; i < x; i++)
 972                     {
 973                         osci_buffer[i - OSCI_X] = 0;
 974                     }
 975                 }
 976
 977                 /* make room */
 978                 rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
 979                 rb->lcd_fillrect(lastx + 1, OSCI_Y, x - lastx, OSCI_HEIGHT);
 980                 rb->lcd_set_drawmode(DRMODE_SOLID);
 981                 /* draw a value */
 982                 if (osci_buffer[x - OSCI_X] > 0)
 983                 {
 984                     int i;
 985                     for (i = lastx +1; i <= x; i++)
 986                     {
 987                         rb->lcd_vline
 988                             (
 989                             i, OSCI_Y + OSCI_HEIGHT - 1,
 990                             OSCI_Y + OSCI_HEIGHT - osci_buffer[i - OSCI_X]-1
 991                             );
 992                     }
 993                 }
 994
 995                 /* mark the current position */
 996                 if (lastx != x)
 997                 {
 998                     rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
 999                     rb->lcd_fillrect(lastx, OSCI_Y, 1, OSCI_HEIGHT);
1000                     rb->lcd_fillrect(x, OSCI_Y, 1, OSCI_HEIGHT);
1001                     rb->lcd_set_drawmode(DRMODE_SOLID);
1002                 }
1003
1004                 /* mark the split point */
1005                 if ((x > split_x - 2) && (lastx < split_x + 3))
1006                 {
1007                     if ((lastx < split_x) && (x >= split_x))
1008                     {
1009                         rb->lcd_set_drawmode(DRMODE_COMPLEMENT);
1010                         rb->lcd_fillrect
1011                         (
1012                             split_x, OSCI_Y + 2,
1013                             1, OSCI_HEIGHT - 2
1014                         );
1015                         rb->lcd_set_drawmode(DRMODE_SOLID);
1016                     }
1017                     rb->lcd_hline(split_x -2, split_x + 2, OSCI_Y);
1018                     rb->lcd_hline(split_x-1, split_x +1,OSCI_Y+1);
1019                 }
1020
1021                 /* make visible */
1022                 if (lastx <= x)
1023                 {
1024                     rb->lcd_update_rect(lastx, OSCI_Y, x-lastx+1, OSCI_HEIGHT);
1025                 }
1026                 else
1027                 {
1028                     rb->lcd_update_rect
1029                     (
1030                         lastx, OSCI_Y,
1031                         OSCI_X + OSCI_WIDTH - lastx, OSCI_HEIGHT
1032                     );
1033                     rb->lcd_update_rect(0, OSCI_Y, x + 1, OSCI_HEIGHT);
1034                 }
1035
1036                 lastx = x;
1037             }
1038
1039             /* we're not in the zoom range -> rewind */
1040             else
1041             {
1042                 if (elapsed >= play_end)
1043                 {
1044                     switch (splitedit_get_loop_mode())
1045                     {
1046                     unsigned int range_width;
1047
1048                     case LOOP_MODE_ALL:
1049                     case LOOP_MODE_TO:
1050                         rb->audio_pause();
1051                         rb->audio_ff_rewind(range_start);
1052 #if (CONFIG_STORAGE & STORAGE_MMC)
1053 /* MMC is slow - wait some time to allow track reload to finish */
1054                         rb->sleep(HZ/20);
1055                         if (mp3->elapsed > play_end) /* reload in progress */
1056                             rb->splash(10*HZ, "Wait - reloading");
1057 #endif
1058                         rb->audio_resume();
1059                         break;
1060
1061                     case LOOP_MODE_FROM:
1062                         rb->audio_pause();
1063                         rb->audio_ff_rewind(xpos_to_time(split_x));
1064 #if (CONFIG_STORAGE & STORAGE_MMC)
1065 /* MMC is slow - wait some time to allow track reload to finish */
1066                         rb->sleep(HZ/20);
1067                         if (mp3->elapsed > play_end) /* reload in progress */
1068                             rb->splash(10*HZ, "Wait - reloading");
1069 #endif
1070                         rb->audio_resume();
1071                         break;
1072
1073                     case LOOP_MODE_FREE:
1074                         range_width = range_end - range_start;
1075                         set_range_by_time(mp3,
1076                             range_end + range_width / 2, range_width);
1077
1078                         /* play_end und play_start anpassen */
1079                         splitedit_set_loop_mode(LOOP_MODE_FREE);
1080                         rb->memset(osci_buffer, 0, sizeof osci_buffer);
1081                         update_osci();
1082                         rb->lcd_update();
1083                         break;
1084                     }
1085                 }
1086             }
1087
1088             button = rb->button_get(false);
1089             rb->yield();
1090
1091             /* here the evaluation of the key scheme starts.
1092             All functions the user triggers are called from
1093             within execute_scheme */
1094             /* key_scheme_execute(button, &scheme); */
1095             switch (button)
1096             {
1097             case SPLITEDIT_PLAY:
1098 #ifdef SPLITEDIT_PLAY_PRE
1099                 if (lastbutton != SPLITEDIT_PLAY_PRE)
1100                     break;
1101 #endif
1102                 rb->audio_pause();
1103                 rb->audio_ff_rewind(xpos_to_time(split_x));
1104                 rb->audio_resume();
1105                 break;
1106
1107             case BUTTON_UP:
1108                 splitedit_zoom_in(mp3);
1109                 lastx = time_to_xpos(mp3->elapsed);
1110                 break;
1111
1112             case BUTTON_DOWN:
1113                 splitedit_zoom_out(mp3);
1114                 lastx = time_to_xpos(mp3->elapsed);
1115                 break;
1116
1117 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
1118 #ifdef SPLITEDIT_SPEED100
1119             case SPLITEDIT_SPEED150:
1120                 rb->sound_set_pitch(150L*PITCH_SPEED_PRECISION);
1121                 splitedit_invalidate_osci();
1122                 break;
1123
1124             case SPLITEDIT_SPEED100:
1125                 rb->sound_set_pitch(PITCH_SPEED_100);
1126                 splitedit_invalidate_osci();
1127                 break;
1128
1129             case SPLITEDIT_SPEED50:
1130                 rb->sound_set_pitch(50L*PITCH_SPEED_PRECISION);
1131                 splitedit_invalidate_osci();
1132                 break;
1133 #endif
1134 #endif
1135
1136             case BUTTON_LEFT:
1137             case BUTTON_LEFT | BUTTON_REPEAT:
1138                 if (splitedit_get_split_x() > OSCI_X + 2)
1139                 {
1140                     splitedit_set_split_x(splitedit_get_split_x() - 1);
1141                 }
1142                 else
1143                 {
1144                     scroll(mp3);
1145                     lastx = time_to_xpos(mp3->elapsed);
1146                 }
1147                 break;
1148
1149             case BUTTON_RIGHT:
1150             case BUTTON_RIGHT | BUTTON_REPEAT:
1151                 if (splitedit_get_split_x() < OSCI_X + OSCI_WIDTH-3)
1152                 {
1153                     splitedit_set_split_x(splitedit_get_split_x() + 1);
1154                 }
1155                 else
1156                 {
1157                     scroll(mp3);
1158                     lastx = time_to_xpos(mp3->elapsed);
1159                 }
1160                 break;
1161
1162             case SPLITEDIT_SAVE:
1163                 save_editor(mp3, xpos_to_time(split_x));
1164                 rb->lcd_clear_display();
1165                 update_osci();
1166                 update_timebar(mp3);
1167                 update_icons();
1168                 break;
1169
1170             case SPLITEDIT_LOOP_MODE:
1171                 splitedit_set_loop_mode(splitedit_get_loop_mode() + 1);
1172                 update_icons();
1173                 break;
1174
1175             case SPLITEDIT_SCALE:
1176 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
1177                 rb->peak_meter_set_use_dbfs(!rb->peak_meter_get_use_dbfs());
1178 #endif
1179                 splitedit_invalidate_osci();
1180                 update_icons();
1181                 break;
1182
1183 #ifdef SPLITEDIT_RC_QUIT
1184             case SPLITEDIT_RC_QUIT:
1185 #endif
1186             case SPLITEDIT_QUIT:
1187                 exit_request = true;
1188                 break;
1189
1190             default:
1191                 if (rb->default_event_handler(button) == SYS_USB_CONNECTED)
1192                 {
1193                     splitedit_exit_code = PLUGIN_USB_CONNECTED;
1194                     exit_request = true;
1195                 }
1196                 break;
1197
1198             }
1199             if (button != BUTTON_NONE)
1200                 lastbutton = button;
1201
1202             if (validation_start == ~(unsigned int)0)
1203             {
1204                 if (elapsed < range_end && elapsed > range_start)
1205                 {
1206                     validation_start = elapsed;
1207                 }
1208                 else
1209                 {
1210                     int endx = time_to_xpos(range_end);
1211                     validation_start = xpos_to_time(endx - 2);
1212                 }
1213                 last_elapsed = elapsed + 1;
1214             }
1215             else
1216             {
1217                 if ((last_elapsed <= validation_start) &&
1218                     (elapsed > validation_start))
1219                 {
1220                     osci_valid = true;
1221                 }
1222
1223                 last_elapsed = elapsed;
1224             }
1225             update_data();
1226
1227             if (mp3 != rb->audio_current_track())
1228             {
1229                 struct mp3entry *new_mp3 = rb->audio_current_track();
1230                 if (rb->strncasecmp(path_mp3, new_mp3->path,
1231                                     sizeof (path_mp3)))
1232                 {
1233                     rb->splash(0, "Abort due to file change");
1234                     rb->button_get(true);
1235                     rb->button_get(true);
1236                     exit_request = true;
1237                 }
1238                 else
1239                 {
1240                     mp3 = new_mp3;
1241                     rb->audio_pause();
1242                     rb->audio_flush_and_reload_tracks();
1243                     rb->audio_ff_rewind(range_start);
1244                     rb->audio_resume();
1245                 }
1246             }
1247         }
1248 #if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
1249 #ifdef SPLITEDIT_SPEED100
1250         rb->sound_set_pitch(1000); /* make sure to reset pitch */
1251 #endif
1252 #endif
1253
1254     }
1255     return retval;
1256 }
1257
1258 enum plugin_status plugin_start(const void* parameter)
1259 {
1260     struct mp3entry* mp3;
1261
1262     (void)parameter;
1263     rb->lcd_clear_display();
1264     rb->lcd_update();
1265     mp3 = rb->audio_current_track();
1266     if (mp3 != NULL)
1267     {
1268         if (rb->audio_status() & AUDIO_STATUS_PAUSE)
1269         {
1270             rb->audio_resume();
1271         }
1272         splitedit_editor(mp3, mp3->elapsed, MIN_RANGE_SIZE * 8);
1273     }
1274     else
1275     {
1276         rb->splash(0, "Play or pause a mp3 file first.");
1277         rb->button_get(true);
1278         rb->button_get(true);
1279     }
1280     return splitedit_exit_code;
1281 }