apps/plugins/cube.c

   1 /***************************************************************************
   2 *             __________               __   ___.
   3 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7 *                     \/            \/     \/    \/            \/
   8 * $Id$
   9 *
  10 * Copyright (C) 2002 Damien Teney
  11 * modified to use int instead of float math by Andreas Zwirtes
  12 * heavily extended by Jens Arnold
  13 *
  14 * This program is free software; you can redistribute it and/or
  15 * modify it under the terms of the GNU General Public License
  16 * as published by the Free Software Foundation; either version 2
  17 * of the License, or (at your option) any later version.
  18 *
  19 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  20 * KIND, either express or implied.
  21 *
  22 ***************************************************************************/
  23 #include "plugin.h"
  24 #include "lib/playergfx.h"
  25 #include "lib/pluginlib_exit.h"
  26 #if LCD_DEPTH > 1
  27 #include "lib/mylcd.h" /* MYLCD_CFG_RB_XLCD or MYLCD_CFG_PGFX */
  28 #include "lib/grey.h"
  29 #else
  30 #include "lib/grey.h"
  31 #include "lib/mylcd.h" /* MYLCD_CFG_GREYLIB or MYLCD_CFG_PGFX */
  32 #endif
  33 #include "lib/xlcd.h"
  34 #include "lib/fixedpoint.h"
  35
  36 /* Loops that the values are displayed */
  37 #define DISP_TIME 30
  38
  39 /* variable button definitions */
  40 #if CONFIG_KEYPAD == RECORDER_PAD
  41 #define CUBE_QUIT          BUTTON_OFF
  42 #define CUBE_NEXT          BUTTON_RIGHT
  43 #define CUBE_PREV          BUTTON_LEFT
  44 #define CUBE_INC           BUTTON_UP
  45 #define CUBE_DEC           BUTTON_DOWN
  46 #define CUBE_MODE          BUTTON_F1
  47 #define CUBE_PAUSE         BUTTON_PLAY
  48 #define CUBE_HIGHSPEED     BUTTON_ON
  49
  50 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  51 #define CUBE_QUIT          BUTTON_OFF
  52 #define CUBE_NEXT          BUTTON_RIGHT
  53 #define CUBE_PREV          BUTTON_LEFT
  54 #define CUBE_INC           BUTTON_UP
  55 #define CUBE_DEC           BUTTON_DOWN
  56 #define CUBE_MODE          BUTTON_F1
  57 #define CUBE_PAUSE         BUTTON_SELECT
  58 #define CUBE_HIGHSPEED     BUTTON_ON
  59
  60 #elif CONFIG_KEYPAD == PLAYER_PAD
  61 #define CUBE_QUIT          BUTTON_STOP
  62 #define CUBE_INC           BUTTON_RIGHT
  63 #define CUBE_DEC           BUTTON_LEFT
  64 #define CUBE_NEXT          (BUTTON_ON | BUTTON_RIGHT)
  65 #define CUBE_PREV          (BUTTON_ON | BUTTON_LEFT)
  66 #define CUBE_MODE          BUTTON_MENU
  67 #define CUBE_PAUSE         BUTTON_PLAY
  68 #define CUBE_HIGHSPEED_PRE BUTTON_ON
  69 #define CUBE_HIGHSPEED     (BUTTON_ON | BUTTON_REL)
  70
  71 #elif CONFIG_KEYPAD == ONDIO_PAD
  72 #define CUBE_QUIT          BUTTON_OFF
  73 #define CUBE_NEXT          BUTTON_RIGHT
  74 #define CUBE_PREV          BUTTON_LEFT
  75 #define CUBE_INC           BUTTON_UP
  76 #define CUBE_DEC           BUTTON_DOWN
  77 #define CUBE_MODE_PRE      BUTTON_MENU
  78 #define CUBE_MODE          (BUTTON_MENU | BUTTON_REL)
  79 #define CUBE_PAUSE         (BUTTON_MENU | BUTTON_LEFT)
  80 #define CUBE_HIGHSPEED     (BUTTON_MENU | BUTTON_RIGHT)
  81
  82 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  83       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  84 #define CUBE_QUIT          BUTTON_OFF
  85 #define CUBE_NEXT          BUTTON_RIGHT
  86 #define CUBE_PREV          BUTTON_LEFT
  87 #define CUBE_INC           BUTTON_UP
  88 #define CUBE_DEC           BUTTON_DOWN
  89 #define CUBE_MODE          BUTTON_MODE
  90 #define CUBE_PAUSE         BUTTON_ON
  91 #define CUBE_HIGHSPEED     BUTTON_SELECT
  92
  93 #define CUBE_RC_QUIT       BUTTON_RC_STOP
  94
  95 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  96       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  97       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  98 #define CUBE_QUIT          (BUTTON_SELECT | BUTTON_MENU)
  99 #define CUBE_NEXT          BUTTON_RIGHT
 100 #define CUBE_PREV          BUTTON_LEFT
 101 #define CUBE_INC           BUTTON_SCROLL_FWD
 102 #define CUBE_DEC           BUTTON_SCROLL_BACK
 103 #define CUBE_MODE          BUTTON_MENU
 104 #define CUBE_PAUSE         BUTTON_PLAY
 105 #define CUBE_HIGHSPEED_PRE BUTTON_SELECT
 106 #define CUBE_HIGHSPEED     (BUTTON_SELECT | BUTTON_REL)
 107
 108 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
 109 #define CUBE_QUIT          BUTTON_PLAY
 110 #define CUBE_NEXT          BUTTON_RIGHT
 111 #define CUBE_PREV          BUTTON_LEFT
 112 #define CUBE_INC           BUTTON_UP
 113 #define CUBE_DEC           BUTTON_DOWN
 114 #define CUBE_MODE          BUTTON_MODE
 115 #define CUBE_PAUSE         BUTTON_SELECT
 116 #define CUBE_HIGHSPEED     BUTTON_EQ
 117
 118 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
 119 #define CUBE_QUIT          BUTTON_POWER
 120 #define CUBE_NEXT          BUTTON_RIGHT
 121 #define CUBE_PREV          BUTTON_LEFT
 122 #define CUBE_INC           BUTTON_UP
 123 #define CUBE_DEC           BUTTON_DOWN
 124 #define CUBE_MODE          BUTTON_REC
 125 #define CUBE_PAUSE         BUTTON_PLAY
 126 #define CUBE_HIGHSPEED     BUTTON_SELECT
 127
 128 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
 129 #define CUBE_QUIT          BUTTON_POWER
 130 #define CUBE_NEXT          BUTTON_RIGHT
 131 #define CUBE_PREV          BUTTON_LEFT
 132 #define CUBE_INC           BUTTON_UP
 133 #define CUBE_DEC           BUTTON_DOWN
 134 #define CUBE_MODE          BUTTON_MENU
 135 #define CUBE_PAUSE         BUTTON_SELECT
 136 #define CUBE_HIGHSPEED     BUTTON_A
 137
 138 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 139 #define CUBE_QUIT          BUTTON_POWER
 140 #define CUBE_NEXT          BUTTON_RIGHT
 141 #define CUBE_PREV          BUTTON_LEFT
 142 #define CUBE_INC           BUTTON_SCROLL_FWD
 143 #define CUBE_DEC           BUTTON_SCROLL_BACK
 144 #define CUBE_MODE          BUTTON_DOWN
 145 #define CUBE_PAUSE         BUTTON_UP
 146 #define CUBE_HIGHSPEED     BUTTON_SELECT
 147
 148 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 149 #define CUBE_QUIT          (BUTTON_HOME|BUTTON_REPEAT)
 150 #define CUBE_NEXT          BUTTON_RIGHT
 151 #define CUBE_PREV          BUTTON_LEFT
 152 #define CUBE_INC           BUTTON_SCROLL_FWD
 153 #define CUBE_DEC           BUTTON_SCROLL_BACK
 154 #define CUBE_MODE          BUTTON_DOWN
 155 #define CUBE_PAUSE         BUTTON_UP
 156 #define CUBE_HIGHSPEED     BUTTON_SELECT
 157
 158 #elif (CONFIG_KEYPAD == SANSA_C200_PAD) || \
 159 (CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
 160 (CONFIG_KEYPAD == SANSA_M200_PAD)
 161 #define CUBE_QUIT          BUTTON_POWER
 162 #define CUBE_NEXT          BUTTON_RIGHT
 163 #define CUBE_PREV          BUTTON_LEFT
 164 #define CUBE_INC           BUTTON_VOL_UP
 165 #define CUBE_DEC           BUTTON_VOL_DOWN
 166 #define CUBE_MODE          BUTTON_DOWN
 167 #define CUBE_PAUSE         BUTTON_UP
 168 #define CUBE_HIGHSPEED     BUTTON_SELECT
 169
 170
 171 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
 172 #define CUBE_QUIT          BUTTON_POWER
 173 #define CUBE_NEXT          BUTTON_RIGHT
 174 #define CUBE_PREV          BUTTON_LEFT
 175 #define CUBE_INC           BUTTON_SCROLL_UP
 176 #define CUBE_DEC           BUTTON_SCROLL_DOWN
 177 #define CUBE_MODE          BUTTON_REW
 178 #define CUBE_PAUSE         BUTTON_PLAY
 179 #define CUBE_HIGHSPEED     BUTTON_FF
 180
 181 #elif CONFIG_KEYPAD == MROBE500_PAD
 182 #define CUBE_QUIT          BUTTON_POWER
 183
 184 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 185 #define CUBE_QUIT          BUTTON_BACK
 186 #define CUBE_NEXT          BUTTON_RIGHT
 187 #define CUBE_PREV          BUTTON_LEFT
 188 #define CUBE_INC           BUTTON_UP
 189 #define CUBE_DEC           BUTTON_DOWN
 190 #define CUBE_MODE          BUTTON_MENU
 191 #define CUBE_PAUSE         BUTTON_PLAY
 192 #define CUBE_HIGHSPEED     BUTTON_SELECT
 193
 194 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 195 #define CUBE_QUIT          BUTTON_POWER
 196 #define CUBE_NEXT          BUTTON_RIGHT
 197 #define CUBE_PREV          BUTTON_LEFT
 198 #define CUBE_INC           BUTTON_UP
 199 #define CUBE_DEC           BUTTON_DOWN
 200 #define CUBE_MODE          BUTTON_MENU
 201 #define CUBE_PAUSE         BUTTON_PLAY
 202 #define CUBE_HIGHSPEED     BUTTON_SELECT
 203
 204 #elif (CONFIG_KEYPAD == IAUDIO_M3_PAD)
 205 #define CUBE_QUIT          BUTTON_RC_REC
 206 #define CUBE_NEXT          BUTTON_RC_FF
 207 #define CUBE_PREV          BUTTON_RC_REW
 208 #define CUBE_INC           BUTTON_RC_VOL_UP
 209 #define CUBE_DEC           BUTTON_RC_VOL_DOWN
 210 #define CUBE_MODE          BUTTON_RC_MODE
 211 #define CUBE_PAUSE         BUTTON_RC_PLAY
 212 #define CUBE_HIGHSPEED     BUTTON_RC_MENU
 213
 214 #elif CONFIG_KEYPAD == COWON_D2_PAD
 215 #define CUBE_QUIT          BUTTON_POWER
 216
 217 #elif (CONFIG_KEYPAD == IAUDIO67_PAD)
 218 #define CUBE_QUIT          BUTTON_POWER
 219 #define CUBE_NEXT          BUTTON_RIGHT
 220 #define CUBE_PREV          BUTTON_LEFT
 221 #define CUBE_INC           BUTTON_VOLUP
 222 #define CUBE_DEC           BUTTON_VOLDOWN
 223 #define CUBE_MODE          BUTTON_MENU
 224 #define CUBE_PAUSE         BUTTON_PLAY
 225 #define CUBE_HIGHSPEED     BUTTON_STOP
 226
 227 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 228 #define CUBE_QUIT          BUTTON_BACK
 229 #define CUBE_NEXT          BUTTON_RIGHT
 230 #define CUBE_PREV          BUTTON_LEFT
 231 #define CUBE_INC           BUTTON_UP
 232 #define CUBE_DEC           BUTTON_DOWN
 233 #define CUBE_MODE          BUTTON_MENU
 234 #define CUBE_PAUSE         BUTTON_PLAY
 235 #define CUBE_HIGHSPEED     BUTTON_SELECT
 236
 237 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 238 #define CUBE_QUIT          BUTTON_POWER
 239 #define CUBE_NEXT          BUTTON_RIGHT
 240 #define CUBE_PREV          BUTTON_LEFT
 241 #define CUBE_INC           BUTTON_UP
 242 #define CUBE_DEC           BUTTON_DOWN
 243 #define CUBE_MODE          BUTTON_MENU
 244 #define CUBE_PAUSE         BUTTON_SELECT
 245 #define CUBE_HIGHSPEED     BUTTON_VIEW
 246
 247 #elif CONFIG_KEYPAD == PHILIPS_HDD6330_PAD
 248 #define CUBE_QUIT          BUTTON_POWER
 249 #define CUBE_NEXT          BUTTON_NEXT
 250 #define CUBE_PREV          BUTTON_PREV
 251 #define CUBE_INC           BUTTON_UP
 252 #define CUBE_DEC           BUTTON_DOWN
 253 #define CUBE_MODE          BUTTON_MENU
 254 #define CUBE_PAUSE         BUTTON_PLAY
 255 #define CUBE_HIGHSPEED     BUTTON_RIGHT
 256
 257 #elif CONFIG_KEYPAD == PHILIPS_SA9200_PAD
 258 #define CUBE_QUIT          BUTTON_POWER
 259 #define CUBE_NEXT          BUTTON_NEXT
 260 #define CUBE_PREV          BUTTON_PREV
 261 #define CUBE_INC           BUTTON_UP
 262 #define CUBE_DEC           BUTTON_DOWN
 263 #define CUBE_MODE          BUTTON_MENU
 264 #define CUBE_PAUSE         BUTTON_PLAY
 265 #define CUBE_HIGHSPEED     BUTTON_RIGHT
 266
 267 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 268 #define CUBE_QUIT          BUTTON_POWER
 269 #elif CONFIG_KEYPAD == ONDAVX777_PAD
 270 #define CUBE_QUIT          BUTTON_POWER
 271
 272 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 273 #define CUBE_QUIT          BUTTON_REC
 274 #define CUBE_NEXT          BUTTON_RIGHT
 275 #define CUBE_PREV          BUTTON_LEFT
 276 #define CUBE_INC           BUTTON_UP
 277 #define CUBE_DEC           BUTTON_DOWN
 278 #define CUBE_MODE          BUTTON_REW
 279 #define CUBE_PAUSE         BUTTON_PLAY
 280 #define CUBE_HIGHSPEED     BUTTON_FFWD
 281
 282 #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
 283 #define CUBE_QUIT          BUTTON_REC
 284 #define CUBE_NEXT          BUTTON_NEXT
 285 #define CUBE_PREV          BUTTON_PREV
 286 #define CUBE_INC           BUTTON_UP
 287 #define CUBE_DEC           BUTTON_DOWN
 288 #define CUBE_MODE          BUTTON_MENU
 289 #define CUBE_PAUSE         BUTTON_PLAY
 290 #define CUBE_HIGHSPEED     BUTTON_OK
 291
 292 #elif CONFIG_KEYPAD == MPIO_HD200_PAD
 293 #define CUBE_QUIT          (BUTTON_REC | BUTTON_PLAY)
 294 #define CUBE_NEXT          BUTTON_FF
 295 #define CUBE_PREV          BUTTON_REW
 296 #define CUBE_INC           BUTTON_VOL_UP
 297 #define CUBE_DEC           BUTTON_VOL_DOWN
 298 #define CUBE_MODE          BUTTON_REC
 299 #define CUBE_PAUSE         BUTTON_PLAY
 300 #define CUBE_HIGHSPEED     BUTTON_FUNC
 301
 302 #elif CONFIG_KEYPAD == MPIO_HD300_PAD
 303 #define CUBE_QUIT          BUTTON_REC
 304 #define CUBE_NEXT          BUTTON_FF
 305 #define CUBE_PREV          BUTTON_REW
 306 #define CUBE_INC           BUTTON_UP
 307 #define CUBE_DEC           BUTTON_DOWN
 308 #define CUBE_MODE          BUTTON_MENU
 309 #define CUBE_PAUSE         BUTTON_PLAY
 310 #define CUBE_HIGHSPEED     BUTTON_ENTER
 311
 312 #else
 313 #error No keymap defined!
 314 #endif
 315
 316 #ifdef HAVE_TOUCHSCREEN
 317 #ifndef CUBE_QUIT
 318 #define CUBE_QUIT          BUTTON_TOPLEFT
 319 #endif
 320 #ifndef CUBE_NEXT
 321 #define CUBE_NEXT          BUTTON_MIDRIGHT
 322 #endif
 323 #ifndef CUBE_PREV
 324 #define CUBE_PREV          BUTTON_MIDLEFT
 325 #endif
 326 #ifndef CUBE_INC
 327 #define CUBE_INC           BUTTON_TOPMIDDLE
 328 #endif
 329 #ifndef CUBE_DEC
 330 #define CUBE_DEC           BUTTON_BOTTOMMIDDLE
 331 #endif
 332 #ifndef CUBE_MODE
 333 #define CUBE_MODE          BUTTON_TOPRIGHT
 334 #endif
 335 #ifndef CUBE_PAUSE
 336 #define CUBE_PAUSE         BUTTON_CENTER
 337 #endif
 338 #ifndef CUBE_HIGHSPEED
 339 #define CUBE_HIGHSPEED     BUTTON_BOTTOMRIGHT
 340 #endif
 341 #endif
 342
 343
 344 #ifdef HAVE_LCD_BITMAP
 345
 346 #define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
 347 static int x_off = LCD_WIDTH/2;
 348 static int y_off = LCD_HEIGHT/2;
 349
 350 #if LCD_DEPTH == 1
 351 #define USEGSLIB
 352 GREY_INFO_STRUCT
 353 struct my_lcd {
 354     void (*update)(void);
 355     void (*clear_display)(void);
 356     void (*drawline)(int x1, int y1, int x2, int y2);
 357     void (*putsxy)(int x, int y, const unsigned char *string);
 358 };
 359
 360 static struct my_lcd greyfuncs = {
 361     grey_update, grey_clear_display, grey_drawline, grey_putsxy
 362 };
 363 static struct my_lcd lcdfuncs; /* initialised at runtime */
 364 static struct my_lcd *mylcd = &greyfuncs;
 365
 366 #define MYLCD(fn) mylcd->fn
 367
 368 #else
 369 #define MYLCD(fn) rb->lcd_ ## fn
 370 #endif
 371
 372 #if CONFIG_LCD == LCD_SSD1815
 373 #define ASPECT 320 /* = 1.25 (fixed point 24.8) */
 374 #else
 375 #define ASPECT 256 /* = 1.00 */
 376 #endif
 377
 378 #else /* !LCD_BITMAP */
 379
 380 #define MYLCD(fn) pgfx_ ## fn
 381 #define DIST 9
 382 static int x_off = 10;
 383 static int y_off = 7;
 384 #define ASPECT 300 /* = 1.175 */
 385
 386 #endif /* !LCD_BITMAP */
 387
 388 struct point_3D {
 389     long x, y, z;
 390 };
 391
 392 struct point_2D {
 393     long x, y;
 394 };
 395
 396 struct line {
 397     int start, end;
 398 };
 399
 400 struct face {
 401     int corner[4];
 402     int line[4];
 403 };
 404
 405 /* initial, unrotated cube corners */
 406 static const struct point_3D sommet[8] =
 407 {
 408     {-DIST, -DIST, -DIST},
 409     { DIST, -DIST, -DIST},
 410     { DIST,  DIST, -DIST},
 411     {-DIST,  DIST, -DIST},
 412     {-DIST, -DIST,  DIST},
 413     { DIST, -DIST,  DIST},
 414     { DIST,  DIST,  DIST},
 415     {-DIST,  DIST,  DIST}
 416 };
 417
 418 /* The 12 lines forming the edges */
 419 static const struct line lines[12] =
 420 {
 421     {0, 1}, {1, 2}, {2, 3}, {3, 0},
 422     {4, 7}, {7, 6}, {6, 5}, {5, 4},
 423     {0, 4}, {1, 5}, {2, 6}, {3, 7}
 424 };
 425
 426 static bool lines_drawn[12];
 427
 428 /* The 6 faces of the cube; points are in clockwise order when viewed
 429    from the outside */
 430 static const struct face faces[6] =
 431 {
 432     {{0, 1, 2, 3}, {0, 1, 2, 3}},
 433     {{4, 7, 6, 5}, {4, 5, 6, 7}},
 434     {{0, 4, 5, 1}, {8, 7, 9, 0}},
 435     {{2, 6, 7, 3}, {10, 5, 11, 2}},
 436     {{0, 3, 7, 4}, {3, 11, 4, 8}},
 437     {{1, 5, 6, 2}, {9, 6, 10, 1}}
 438 };
 439
 440 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 441 static const unsigned face_colors[6] =
 442 {
 443 #ifdef HAVE_LCD_COLOR
 444     LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
 445     LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
 446 #elif defined(USEGSLIB)
 447 #ifdef MROBE_100
 448     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 449     GREY_DARKGRAY,  GREY_WHITE,     GREY_WHITE
 450 #else
 451     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 452     GREY_DARKGRAY,  GREY_BLACK,     GREY_BLACK
 453 #endif
 454 #else
 455     LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
 456     LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
 457 #endif
 458 };
 459 #endif
 460
 461 enum {
 462 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 463     SOLID,
 464 #endif
 465     HIDDEN_LINES,
 466     WIREFRAME,
 467     NUM_MODES
 468 };
 469
 470 static int mode = 0;
 471
 472 struct counter {
 473     const char *label;
 474     short speed;
 475     short angle;
 476 };
 477
 478 static struct counter axes[] = {
 479     {"x-axis", 1, 0},
 480     {"y-axis", 3, 0},
 481     {"z-axis", 2, 0}
 482 };
 483
 484 static struct point_3D point3D[8];
 485 static struct point_2D point2D[8];
 486 static long matrice[3][3];
 487
 488 static const int nb_points = 8;
 489 static long z_off = 600;
 490
 491 static void cube_rotate(int xa, int ya, int za)
 492 {
 493     int i;
 494     /* Just to prevent unnecessary lookups */
 495     long sxa, cxa, sya, cya, sza, cza;
 496
 497     sxa = fp14_sin(xa);
 498     cxa = fp14_cos(xa);
 499     sya = fp14_sin(ya);
 500     cya = fp14_cos(ya);
 501     sza = fp14_sin(za);
 502     cza = fp14_cos(za);
 503
 504     /* calculate overall translation matrix */
 505     matrice[0][0] = (cza * cya) >> 14;
 506     matrice[1][0] = (sza * cya) >> 14;
 507     matrice[2][0] = -sya;
 508
 509     matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
 510     matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
 511     matrice[2][1] = (sxa * cya) >> 14;
 512
 513     matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
 514     matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
 515     matrice[2][2] = (cxa * cya) >> 14;
 516
 517     /* apply translation matrix to all points */
 518     for (i = 0; i < nb_points; i++)
 519     {
 520         point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
 521                      + matrice[2][0] * sommet[i].z;
 522
 523         point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
 524                      + matrice[2][1] * sommet[i].z;
 525
 526         point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
 527                      + matrice[2][2] * sommet[i].z;
 528     }
 529 }
 530
 531 static void cube_viewport(void)
 532 {
 533     int i;
 534
 535     /* Do viewport transformation for all points */
 536     for (i = 0; i < nb_points; i++)
 537     {
 538 #if ASPECT != 256
 539         point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
 540                      + x_off;
 541 #else
 542         point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
 543                      + x_off;
 544 #endif
 545         point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
 546                      + y_off;
 547     }
 548 }
 549
 550 static void cube_draw(void)
 551 {
 552     int i, j, line;
 553 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 554     unsigned old_foreground;
 555 #endif
 556
 557     switch (mode)
 558     {
 559 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 560       case SOLID:
 561
 562         old_foreground = mylcd_get_foreground();
 563         for (i = 0; i < 6; i++)
 564         {
 565             /* backface culling; if the shape winds counter-clockwise, we are
 566              * looking at the backface, and the (simplified) cross product
 567              * is < 0. Do not draw it. */
 568             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 569                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 570                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 571                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 572                 continue;
 573
 574             mylcd_set_foreground(face_colors[i]);
 575             mylcd_filltriangle(point2D[faces[i].corner[0]].x,
 576                                point2D[faces[i].corner[0]].y,
 577                                point2D[faces[i].corner[1]].x,
 578                                point2D[faces[i].corner[1]].y,
 579                                point2D[faces[i].corner[2]].x,
 580                                point2D[faces[i].corner[2]].y);
 581             mylcd_filltriangle(point2D[faces[i].corner[0]].x,
 582                                point2D[faces[i].corner[0]].y,
 583                                point2D[faces[i].corner[2]].x,
 584                                point2D[faces[i].corner[2]].y,
 585                                point2D[faces[i].corner[3]].x,
 586                                point2D[faces[i].corner[3]].y);
 587
 588         }
 589         mylcd_set_foreground(old_foreground);
 590         break;
 591 #endif /* (LCD_DEPTH > 1) || GSLIB */
 592
 593       case HIDDEN_LINES:
 594
 595         rb->memset(lines_drawn, 0, sizeof(lines_drawn));
 596         for (i = 0; i < 6; i++)
 597         {
 598             /* backface culling; if the shape winds counter-clockwise, we are
 599              * looking at the backface, and the (simplified) cross product
 600              * is < 0. Do not draw it. */
 601             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 602                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 603                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 604                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 605                 continue;
 606
 607             for (j = 0; j < 4; j++)
 608             {
 609                 line = faces[i].line[j];
 610                 if (!lines_drawn[line])
 611                 {
 612                     lines_drawn[line] = true;
 613                     MYLCD(drawline)(point2D[lines[line].start].x,
 614                                     point2D[lines[line].start].y,
 615                                     point2D[lines[line].end].x,
 616                                     point2D[lines[line].end].y);
 617                 }
 618             }
 619         }
 620         break;
 621
 622       case WIREFRAME:
 623
 624         for (i = 0; i < 12; i++)
 625             MYLCD(drawline)(point2D[lines[i].start].x,
 626                             point2D[lines[i].start].y,
 627                             point2D[lines[i].end].x,
 628                             point2D[lines[i].end].y);
 629         break;
 630     }
 631 }
 632
 633 void cleanup(void)
 634 {
 635 #ifdef USEGSLIB
 636     grey_release();
 637 #elif defined HAVE_LCD_CHARCELLS
 638     pgfx_release();
 639 #endif
 640 }
 641
 642 enum plugin_status plugin_start(const void* parameter)
 643 {
 644     int t_disp = 0;
 645 #ifdef USEGSLIB
 646     unsigned char *gbuf;
 647     size_t gbuf_size = 0;
 648     bool mode_switch = true;
 649 #endif
 650
 651     int button;
 652     int lastbutton = BUTTON_NONE;
 653     int curr = 0;
 654     bool highspeed = false;
 655     bool paused = false;
 656     bool redraw = true;
 657     bool quit = false;
 658
 659     (void)(parameter);
 660
 661 #ifdef HAVE_LCD_BITMAP
 662 #if defined(USEGSLIB)
 663     gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
 664     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED,
 665                    LCD_WIDTH, LCD_HEIGHT, NULL))
 666     {
 667         rb->splash(HZ, "Couldn't init greyscale display");
 668         return PLUGIN_ERROR;
 669     }
 670
 671     /* init lcd_ function pointers */
 672     lcdfuncs.update =        rb->lcd_update;
 673     lcdfuncs.clear_display = rb->lcd_clear_display;
 674     lcdfuncs.drawline =      rb->lcd_drawline;
 675     lcdfuncs.putsxy =        rb->lcd_putsxy;
 676
 677 #ifdef MROBE_100
 678     grey_set_background(GREY_BLACK);
 679 #endif
 680
 681     grey_setfont(FONT_SYSFIXED);
 682 #endif
 683     rb->lcd_setfont(FONT_SYSFIXED);
 684 #else /* LCD_CHARCELLS */
 685     if (!pgfx_init(4, 2))
 686     {
 687         rb->splash(HZ*2, "Old LCD :(");
 688         return PLUGIN_OK;
 689     }
 690     pgfx_display(0, 0);
 691 #endif
 692
 693     atexit(cleanup);
 694     while(!quit)
 695     {
 696         if (redraw)
 697         {
 698             MYLCD(clear_display)();
 699             cube_rotate(axes[0].angle, axes[1].angle, axes[2].angle);
 700             cube_viewport();
 701             cube_draw();
 702             redraw = false;
 703         }
 704
 705 #ifdef HAVE_LCD_BITMAP
 706         if (t_disp > 0)
 707         {
 708             char buffer[30];
 709             t_disp--;
 710             rb->snprintf(buffer, sizeof(buffer), "%s: %d %s",
 711                          axes[curr].label,
 712                          paused ? axes[curr].angle : axes[curr].speed,
 713                          highspeed ? "(hs)" : "");
 714             MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
 715             if (t_disp == 0)
 716                 redraw = true;
 717         }
 718 #else
 719         if (t_disp > 0)
 720         {
 721             if (t_disp == DISP_TIME)
 722             {
 723                 rb->lcd_puts(5, 0, axes[curr].label);
 724                 rb->lcd_putsf(5, 1, "%d %c",
 725                              paused ? axes[curr].angle : axes[curr].speed,
 726                              highspeed ? 'H' : ' ');
 727             }
 728             t_disp--;
 729             if (t_disp == 0)
 730             {
 731                 rb->lcd_clear_display();
 732                 pgfx_display(0, 0);
 733             }
 734         }
 735 #endif
 736 #ifdef USEGSLIB
 737         if (mode_switch)
 738         {
 739             grey_show(mode == SOLID);
 740             mode_switch = false;
 741         }
 742 #endif
 743         MYLCD(update)();
 744
 745         if (!paused)
 746         {
 747             int i;
 748
 749             for (i = 0; i < 3; i++)
 750             {
 751                 axes[i].angle += axes[i].speed;
 752                 if (axes[i].angle > 359)
 753                     axes[i].angle -= 360;
 754                 else if (axes[i].angle < 0)
 755                     axes[i].angle += 360;
 756             }
 757             redraw = true;
 758
 759             if (highspeed)
 760                 rb->yield();
 761             else
 762                 rb->sleep(HZ/25);
 763             button = rb->button_get(false);
 764         }
 765         else
 766         {
 767             button = rb->button_get_w_tmo(HZ/25);
 768         }
 769
 770         switch (button)
 771         {
 772             case CUBE_INC:
 773             case CUBE_INC|BUTTON_REPEAT:
 774                 if (!paused)
 775                 {
 776                     if (axes[curr].speed < 10)
 777                         axes[curr].speed++;
 778                 }
 779                 else
 780                 {
 781                     if (++axes[curr].angle > 359)
 782                         axes[curr].angle -= 360;
 783                 }
 784                 t_disp = DISP_TIME;
 785                 redraw = true;
 786                 break;
 787
 788             case CUBE_DEC:
 789             case CUBE_DEC|BUTTON_REPEAT:
 790                 if (!paused)
 791                 {
 792                     if (axes[curr].speed > -10)
 793                         axes[curr].speed--;
 794                 }
 795                 else
 796                 {
 797                     if (--axes[curr].angle < 0)
 798                         axes[curr].angle += 360;
 799                 }
 800                 t_disp = DISP_TIME;
 801                 redraw = true;
 802                 break;
 803
 804             case CUBE_NEXT:
 805                 if (++curr > 2)
 806                     curr = 0;
 807                 t_disp = DISP_TIME;
 808                 break;
 809
 810             case CUBE_PREV:
 811                 if (--curr < 0)
 812                     curr = 2;
 813                 t_disp = DISP_TIME;
 814                 break;
 815
 816             case CUBE_MODE:
 817 #ifdef CUBE_MODE_PRE
 818                 if (lastbutton != CUBE_MODE_PRE)
 819                     break;
 820 #endif
 821                 if (++mode >= NUM_MODES)
 822                     mode = 0;
 823 #ifdef USEGSLIB
 824                 mylcd = (mode == SOLID) ? &greyfuncs : &lcdfuncs;
 825                 mode_switch = true;
 826 #endif
 827                 redraw = true;
 828                 break;
 829
 830             case CUBE_PAUSE:
 831 #ifdef CUBE_PAUSE_PRE
 832                 if (lastbutton != CUBE_PAUSE_PRE)
 833                     break;
 834 #endif
 835                 paused = !paused;
 836                 break;
 837
 838             case CUBE_HIGHSPEED:
 839 #ifdef CUBE_HIGHSPEED_PRE
 840                 if (lastbutton != CUBE_HIGHSPEED_PRE)
 841                     break;
 842 #endif
 843                 highspeed = !highspeed;
 844                 t_disp = DISP_TIME;
 845                 break;
 846
 847 #ifdef CUBE_RC_QUIT
 848             case CUBE_RC_QUIT:
 849 #endif
 850             case CUBE_QUIT:
 851                 exit(EXIT_SUCCESS);
 852                 break;
 853
 854             default:
 855                 exit_on_usb(button);
 856                 break;
 857         }
 858         if (button != BUTTON_NONE)
 859             lastbutton = button;
 860     }
 861
 862     return PLUGIN_OK;
 863 }
 864
 865