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 #else
 303 #error No keymap defined!
 304 #endif
 305
 306 #ifdef HAVE_TOUCHSCREEN
 307 #ifndef CUBE_QUIT
 308 #define CUBE_QUIT          BUTTON_TOPLEFT
 309 #endif
 310 #ifndef CUBE_NEXT
 311 #define CUBE_NEXT          BUTTON_MIDRIGHT
 312 #endif
 313 #ifndef CUBE_PREV
 314 #define CUBE_PREV          BUTTON_MIDLEFT
 315 #endif
 316 #ifndef CUBE_INC
 317 #define CUBE_INC           BUTTON_TOPMIDDLE
 318 #endif
 319 #ifndef CUBE_DEC
 320 #define CUBE_DEC           BUTTON_BOTTOMMIDDLE
 321 #endif
 322 #ifndef CUBE_MODE
 323 #define CUBE_MODE          BUTTON_TOPRIGHT
 324 #endif
 325 #ifndef CUBE_PAUSE
 326 #define CUBE_PAUSE         BUTTON_CENTER
 327 #endif
 328 #ifndef CUBE_HIGHSPEED
 329 #define CUBE_HIGHSPEED     BUTTON_BOTTOMRIGHT
 330 #endif
 331 #endif
 332
 333
 334 #ifdef HAVE_LCD_BITMAP
 335
 336 #define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
 337 static int x_off = LCD_WIDTH/2;
 338 static int y_off = LCD_HEIGHT/2;
 339
 340 #if LCD_DEPTH == 1
 341 #define USEGSLIB
 342 GREY_INFO_STRUCT
 343 struct my_lcd {
 344     void (*update)(void);
 345     void (*clear_display)(void);
 346     void (*drawline)(int x1, int y1, int x2, int y2);
 347     void (*putsxy)(int x, int y, const unsigned char *string);
 348 };
 349
 350 static struct my_lcd greyfuncs = {
 351     grey_update, grey_clear_display, grey_drawline, grey_putsxy
 352 };
 353 static struct my_lcd lcdfuncs; /* initialised at runtime */
 354 static struct my_lcd *mylcd = &greyfuncs;
 355
 356 #define MYLCD(fn) mylcd->fn
 357
 358 #else
 359 #define MYLCD(fn) rb->lcd_ ## fn
 360 #endif
 361
 362 #if CONFIG_LCD == LCD_SSD1815
 363 #define ASPECT 320 /* = 1.25 (fixed point 24.8) */
 364 #else
 365 #define ASPECT 256 /* = 1.00 */
 366 #endif
 367
 368 #else /* !LCD_BITMAP */
 369
 370 #define MYLCD(fn) pgfx_ ## fn
 371 #define DIST 9
 372 static int x_off = 10;
 373 static int y_off = 7;
 374 #define ASPECT 300 /* = 1.175 */
 375
 376 #endif /* !LCD_BITMAP */
 377
 378 struct point_3D {
 379     long x, y, z;
 380 };
 381
 382 struct point_2D {
 383     long x, y;
 384 };
 385
 386 struct line {
 387     int start, end;
 388 };
 389
 390 struct face {
 391     int corner[4];
 392     int line[4];
 393 };
 394
 395 /* initial, unrotated cube corners */
 396 static const struct point_3D sommet[8] =
 397 {
 398     {-DIST, -DIST, -DIST},
 399     { DIST, -DIST, -DIST},
 400     { DIST,  DIST, -DIST},
 401     {-DIST,  DIST, -DIST},
 402     {-DIST, -DIST,  DIST},
 403     { DIST, -DIST,  DIST},
 404     { DIST,  DIST,  DIST},
 405     {-DIST,  DIST,  DIST}
 406 };
 407
 408 /* The 12 lines forming the edges */
 409 static const struct line lines[12] =
 410 {
 411     {0, 1}, {1, 2}, {2, 3}, {3, 0},
 412     {4, 7}, {7, 6}, {6, 5}, {5, 4},
 413     {0, 4}, {1, 5}, {2, 6}, {3, 7}
 414 };
 415
 416 static bool lines_drawn[12];
 417
 418 /* The 6 faces of the cube; points are in clockwise order when viewed
 419    from the outside */
 420 static const struct face faces[6] =
 421 {
 422     {{0, 1, 2, 3}, {0, 1, 2, 3}},
 423     {{4, 7, 6, 5}, {4, 5, 6, 7}},
 424     {{0, 4, 5, 1}, {8, 7, 9, 0}},
 425     {{2, 6, 7, 3}, {10, 5, 11, 2}},
 426     {{0, 3, 7, 4}, {3, 11, 4, 8}},
 427     {{1, 5, 6, 2}, {9, 6, 10, 1}}
 428 };
 429
 430 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 431 static const unsigned face_colors[6] =
 432 {
 433 #ifdef HAVE_LCD_COLOR
 434     LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
 435     LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
 436 #elif defined(USEGSLIB)
 437 #ifdef MROBE_100
 438     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 439     GREY_DARKGRAY,  GREY_WHITE,     GREY_WHITE
 440 #else
 441     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 442     GREY_DARKGRAY,  GREY_BLACK,     GREY_BLACK
 443 #endif
 444 #else
 445     LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
 446     LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
 447 #endif
 448 };
 449 #endif
 450
 451 enum {
 452 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 453     SOLID,
 454 #endif
 455     HIDDEN_LINES,
 456     WIREFRAME,
 457     NUM_MODES
 458 };
 459
 460 static int mode = 0;
 461
 462 struct counter {
 463     const char *label;
 464     short speed;
 465     short angle;
 466 };
 467
 468 static struct counter axes[] = {
 469     {"x-axis", 1, 0},
 470     {"y-axis", 3, 0},
 471     {"z-axis", 2, 0}
 472 };
 473
 474 static struct point_3D point3D[8];
 475 static struct point_2D point2D[8];
 476 static long matrice[3][3];
 477
 478 static const int nb_points = 8;
 479 static long z_off = 600;
 480
 481 static void cube_rotate(int xa, int ya, int za)
 482 {
 483     int i;
 484     /* Just to prevent unnecessary lookups */
 485     long sxa, cxa, sya, cya, sza, cza;
 486
 487     sxa = fp14_sin(xa);
 488     cxa = fp14_cos(xa);
 489     sya = fp14_sin(ya);
 490     cya = fp14_cos(ya);
 491     sza = fp14_sin(za);
 492     cza = fp14_cos(za);
 493
 494     /* calculate overall translation matrix */
 495     matrice[0][0] = (cza * cya) >> 14;
 496     matrice[1][0] = (sza * cya) >> 14;
 497     matrice[2][0] = -sya;
 498
 499     matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
 500     matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
 501     matrice[2][1] = (sxa * cya) >> 14;
 502
 503     matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
 504     matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
 505     matrice[2][2] = (cxa * cya) >> 14;
 506
 507     /* apply translation matrix to all points */
 508     for (i = 0; i < nb_points; i++)
 509     {
 510         point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
 511                      + matrice[2][0] * sommet[i].z;
 512
 513         point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
 514                      + matrice[2][1] * sommet[i].z;
 515
 516         point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
 517                      + matrice[2][2] * sommet[i].z;
 518     }
 519 }
 520
 521 static void cube_viewport(void)
 522 {
 523     int i;
 524
 525     /* Do viewport transformation for all points */
 526     for (i = 0; i < nb_points; i++)
 527     {
 528 #if ASPECT != 256
 529         point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
 530                      + x_off;
 531 #else
 532         point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
 533                      + x_off;
 534 #endif
 535         point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
 536                      + y_off;
 537     }
 538 }
 539
 540 static void cube_draw(void)
 541 {
 542     int i, j, line;
 543 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 544     unsigned old_foreground;
 545 #endif
 546
 547     switch (mode)
 548     {
 549 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 550       case SOLID:
 551
 552         old_foreground = mylcd_get_foreground();
 553         for (i = 0; i < 6; i++)
 554         {
 555             /* backface culling; if the shape winds counter-clockwise, we are
 556              * looking at the backface, and the (simplified) cross product
 557              * is < 0. Do not draw it. */
 558             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 559                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 560                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 561                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 562                 continue;
 563
 564             mylcd_set_foreground(face_colors[i]);
 565             mylcd_filltriangle(point2D[faces[i].corner[0]].x,
 566                                point2D[faces[i].corner[0]].y,
 567                                point2D[faces[i].corner[1]].x,
 568                                point2D[faces[i].corner[1]].y,
 569                                point2D[faces[i].corner[2]].x,
 570                                point2D[faces[i].corner[2]].y);
 571             mylcd_filltriangle(point2D[faces[i].corner[0]].x,
 572                                point2D[faces[i].corner[0]].y,
 573                                point2D[faces[i].corner[2]].x,
 574                                point2D[faces[i].corner[2]].y,
 575                                point2D[faces[i].corner[3]].x,
 576                                point2D[faces[i].corner[3]].y);
 577
 578         }
 579         mylcd_set_foreground(old_foreground);
 580         break;
 581 #endif /* (LCD_DEPTH > 1) || GSLIB */
 582
 583       case HIDDEN_LINES:
 584
 585         rb->memset(lines_drawn, 0, sizeof(lines_drawn));
 586         for (i = 0; i < 6; i++)
 587         {
 588             /* backface culling; if the shape winds counter-clockwise, we are
 589              * looking at the backface, and the (simplified) cross product
 590              * is < 0. Do not draw it. */
 591             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 592                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 593                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 594                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 595                 continue;
 596
 597             for (j = 0; j < 4; j++)
 598             {
 599                 line = faces[i].line[j];
 600                 if (!lines_drawn[line])
 601                 {
 602                     lines_drawn[line] = true;
 603                     MYLCD(drawline)(point2D[lines[line].start].x,
 604                                     point2D[lines[line].start].y,
 605                                     point2D[lines[line].end].x,
 606                                     point2D[lines[line].end].y);
 607                 }
 608             }
 609         }
 610         break;
 611
 612       case WIREFRAME:
 613
 614         for (i = 0; i < 12; i++)
 615             MYLCD(drawline)(point2D[lines[i].start].x,
 616                             point2D[lines[i].start].y,
 617                             point2D[lines[i].end].x,
 618                             point2D[lines[i].end].y);
 619         break;
 620     }
 621 }
 622
 623 void cleanup(void)
 624 {
 625 #ifdef USEGSLIB
 626     grey_release();
 627 #elif defined HAVE_LCD_CHARCELLS
 628     pgfx_release();
 629 #endif
 630 }
 631
 632 enum plugin_status plugin_start(const void* parameter)
 633 {
 634     int t_disp = 0;
 635 #ifdef USEGSLIB
 636     unsigned char *gbuf;
 637     size_t gbuf_size = 0;
 638     bool mode_switch = true;
 639 #endif
 640
 641     int button;
 642     int lastbutton = BUTTON_NONE;
 643     int curr = 0;
 644     bool highspeed = false;
 645     bool paused = false;
 646     bool redraw = true;
 647     bool quit = false;
 648
 649     (void)(parameter);
 650
 651 #ifdef HAVE_LCD_BITMAP
 652 #if defined(USEGSLIB)
 653     gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
 654     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED,
 655                    LCD_WIDTH, LCD_HEIGHT, NULL))
 656     {
 657         rb->splash(HZ, "Couldn't init greyscale display");
 658         return PLUGIN_ERROR;
 659     }
 660
 661     /* init lcd_ function pointers */
 662     lcdfuncs.update =        rb->lcd_update;
 663     lcdfuncs.clear_display = rb->lcd_clear_display;
 664     lcdfuncs.drawline =      rb->lcd_drawline;
 665     lcdfuncs.putsxy =        rb->lcd_putsxy;
 666
 667 #ifdef MROBE_100
 668     grey_set_background(GREY_BLACK);
 669 #endif
 670
 671     grey_setfont(FONT_SYSFIXED);
 672 #endif
 673     rb->lcd_setfont(FONT_SYSFIXED);
 674 #else /* LCD_CHARCELLS */
 675     if (!pgfx_init(4, 2))
 676     {
 677         rb->splash(HZ*2, "Old LCD :(");
 678         return PLUGIN_OK;
 679     }
 680     pgfx_display(0, 0);
 681 #endif
 682
 683     atexit(cleanup);
 684     while(!quit)
 685     {
 686         if (redraw)
 687         {
 688             MYLCD(clear_display)();
 689             cube_rotate(axes[0].angle, axes[1].angle, axes[2].angle);
 690             cube_viewport();
 691             cube_draw();
 692             redraw = false;
 693         }
 694
 695 #ifdef HAVE_LCD_BITMAP
 696         if (t_disp > 0)
 697         {
 698             char buffer[30];
 699             t_disp--;
 700             rb->snprintf(buffer, sizeof(buffer), "%s: %d %s",
 701                          axes[curr].label,
 702                          paused ? axes[curr].angle : axes[curr].speed,
 703                          highspeed ? "(hs)" : "");
 704             MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
 705             if (t_disp == 0)
 706                 redraw = true;
 707         }
 708 #else
 709         if (t_disp > 0)
 710         {
 711             if (t_disp == DISP_TIME)
 712             {
 713                 rb->lcd_puts(5, 0, axes[curr].label);
 714                 rb->lcd_putsf(5, 1, "%d %c",
 715                              paused ? axes[curr].angle : axes[curr].speed,
 716                              highspeed ? 'H' : ' ');
 717             }
 718             t_disp--;
 719             if (t_disp == 0)
 720             {
 721                 rb->lcd_clear_display();
 722                 pgfx_display(0, 0);
 723             }
 724         }
 725 #endif
 726 #ifdef USEGSLIB
 727         if (mode_switch)
 728         {
 729             grey_show(mode == SOLID);
 730             mode_switch = false;
 731         }
 732 #endif
 733         MYLCD(update)();
 734
 735         if (!paused)
 736         {
 737             int i;
 738
 739             for (i = 0; i < 3; i++)
 740             {
 741                 axes[i].angle += axes[i].speed;
 742                 if (axes[i].angle > 359)
 743                     axes[i].angle -= 360;
 744                 else if (axes[i].angle < 0)
 745                     axes[i].angle += 360;
 746             }
 747             redraw = true;
 748
 749             if (highspeed)
 750                 rb->yield();
 751             else
 752                 rb->sleep(HZ/25);
 753             button = rb->button_get(false);
 754         }
 755         else
 756         {
 757             button = rb->button_get_w_tmo(HZ/25);
 758         }
 759
 760         switch (button)
 761         {
 762             case CUBE_INC:
 763             case CUBE_INC|BUTTON_REPEAT:
 764                 if (!paused)
 765                 {
 766                     if (axes[curr].speed < 10)
 767                         axes[curr].speed++;
 768                 }
 769                 else
 770                 {
 771                     if (++axes[curr].angle > 359)
 772                         axes[curr].angle -= 360;
 773                 }
 774                 t_disp = DISP_TIME;
 775                 redraw = true;
 776                 break;
 777
 778             case CUBE_DEC:
 779             case CUBE_DEC|BUTTON_REPEAT:
 780                 if (!paused)
 781                 {
 782                     if (axes[curr].speed > -10)
 783                         axes[curr].speed--;
 784                 }
 785                 else
 786                 {
 787                     if (--axes[curr].angle < 0)
 788                         axes[curr].angle += 360;
 789                 }
 790                 t_disp = DISP_TIME;
 791                 redraw = true;
 792                 break;
 793
 794             case CUBE_NEXT:
 795                 if (++curr > 2)
 796                     curr = 0;
 797                 t_disp = DISP_TIME;
 798                 break;
 799
 800             case CUBE_PREV:
 801                 if (--curr < 0)
 802                     curr = 2;
 803                 t_disp = DISP_TIME;
 804                 break;
 805
 806             case CUBE_MODE:
 807 #ifdef CUBE_MODE_PRE
 808                 if (lastbutton != CUBE_MODE_PRE)
 809                     break;
 810 #endif
 811                 if (++mode >= NUM_MODES)
 812                     mode = 0;
 813 #ifdef USEGSLIB
 814                 mylcd = (mode == SOLID) ? &greyfuncs : &lcdfuncs;
 815                 mode_switch = true;
 816 #endif
 817                 redraw = true;
 818                 break;
 819
 820             case CUBE_PAUSE:
 821 #ifdef CUBE_PAUSE_PRE
 822                 if (lastbutton != CUBE_PAUSE_PRE)
 823                     break;
 824 #endif
 825                 paused = !paused;
 826                 break;
 827
 828             case CUBE_HIGHSPEED:
 829 #ifdef CUBE_HIGHSPEED_PRE
 830                 if (lastbutton != CUBE_HIGHSPEED_PRE)
 831                     break;
 832 #endif
 833                 highspeed = !highspeed;
 834                 t_disp = DISP_TIME;
 835                 break;
 836
 837 #ifdef CUBE_RC_QUIT
 838             case CUBE_RC_QUIT:
 839 #endif
 840             case CUBE_QUIT:
 841                 exit(EXIT_SUCCESS);
 842                 break;
 843
 844             default:
 845                 exit_on_usb(button);
 846                 break;
 847         }
 848         if (button != BUTTON_NONE)
 849             lastbutton = button;
 850     }
 851
 852     return PLUGIN_OK;
 853 }
 854
 855