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_SA9200_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 == ONDAVX747_PAD
 258 #define CUBE_QUIT          BUTTON_POWER
 259 #elif CONFIG_KEYPAD == ONDAVX777_PAD
 260 #define CUBE_QUIT          BUTTON_POWER
 261
 262 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 263 #define CUBE_QUIT          BUTTON_REC
 264 #define CUBE_NEXT          BUTTON_RIGHT
 265 #define CUBE_PREV          BUTTON_LEFT
 266 #define CUBE_INC           BUTTON_UP
 267 #define CUBE_DEC           BUTTON_DOWN
 268 #define CUBE_MODE          BUTTON_REW
 269 #define CUBE_PAUSE         BUTTON_PLAY
 270 #define CUBE_HIGHSPEED     BUTTON_FFWD
 271
 272 #elif CONFIG_KEYPAD == PBELL_VIBE500_PAD
 273 #define CUBE_QUIT          BUTTON_REC
 274 #define CUBE_NEXT          BUTTON_NEXT
 275 #define CUBE_PREV          BUTTON_PREV
 276 #define CUBE_INC           BUTTON_UP
 277 #define CUBE_DEC           BUTTON_DOWN
 278 #define CUBE_MODE          BUTTON_MENU
 279 #define CUBE_PAUSE         BUTTON_PLAY
 280 #define CUBE_HIGHSPEED     BUTTON_OK
 281
 282 #elif CONFIG_KEYPAD == MPIO_HD200_PAD
 283 #define CUBE_QUIT          (BUTTON_REC | BUTTON_PLAY)
 284 #define CUBE_NEXT          BUTTON_NEXT
 285 #define CUBE_PREV          BUTTON_PREV
 286 #define CUBE_INC           BUTTON_VOL_UP
 287 #define CUBE_DEC           BUTTON_VOL_DOWN
 288 #define CUBE_MODE          BUTTON_REC
 289 #define CUBE_PAUSE         BUTTON_PLAY
 290 #define CUBE_HIGHSPEED     BUTTON_SELECT
 291
 292 #else
 293 #error No keymap defined!
 294 #endif
 295
 296 #ifdef HAVE_TOUCHSCREEN
 297 #ifndef CUBE_QUIT
 298 #define CUBE_QUIT          BUTTON_TOPLEFT
 299 #endif
 300 #ifndef CUBE_NEXT
 301 #define CUBE_NEXT          BUTTON_MIDRIGHT
 302 #endif
 303 #ifndef CUBE_PREV
 304 #define CUBE_PREV          BUTTON_MIDLEFT
 305 #endif
 306 #ifndef CUBE_INC
 307 #define CUBE_INC           BUTTON_TOPMIDDLE
 308 #endif
 309 #ifndef CUBE_DEC
 310 #define CUBE_DEC           BUTTON_BOTTOMMIDDLE
 311 #endif
 312 #ifndef CUBE_MODE
 313 #define CUBE_MODE          BUTTON_TOPRIGHT
 314 #endif
 315 #ifndef CUBE_PAUSE
 316 #define CUBE_PAUSE         BUTTON_CENTER
 317 #endif
 318 #ifndef CUBE_HIGHSPEED
 319 #define CUBE_HIGHSPEED     BUTTON_BOTTOMRIGHT
 320 #endif
 321 #endif
 322
 323
 324 #ifdef HAVE_LCD_BITMAP
 325
 326 #define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
 327 static int x_off = LCD_WIDTH/2;
 328 static int y_off = LCD_HEIGHT/2;
 329
 330 #if LCD_DEPTH == 1
 331 #define USEGSLIB
 332 GREY_INFO_STRUCT
 333 struct my_lcd {
 334     void (*update)(void);
 335     void (*clear_display)(void);
 336     void (*drawline)(int x1, int y1, int x2, int y2);
 337     void (*putsxy)(int x, int y, const unsigned char *string);
 338 };
 339
 340 static struct my_lcd greyfuncs = {
 341     grey_update, grey_clear_display, grey_drawline, grey_putsxy
 342 };
 343 static struct my_lcd lcdfuncs; /* initialised at runtime */
 344 static struct my_lcd *mylcd = &greyfuncs;
 345
 346 #define MYLCD(fn) mylcd->fn
 347
 348 #else
 349 #define MYLCD(fn) rb->lcd_ ## fn
 350 #endif
 351
 352 #if CONFIG_LCD == LCD_SSD1815
 353 #define ASPECT 320 /* = 1.25 (fixed point 24.8) */
 354 #else
 355 #define ASPECT 256 /* = 1.00 */
 356 #endif
 357
 358 #else /* !LCD_BITMAP */
 359
 360 #define MYLCD(fn) pgfx_ ## fn
 361 #define DIST 9
 362 static int x_off = 10;
 363 static int y_off = 7;
 364 #define ASPECT 300 /* = 1.175 */
 365
 366 #endif /* !LCD_BITMAP */
 367
 368 struct point_3D {
 369     long x, y, z;
 370 };
 371
 372 struct point_2D {
 373     long x, y;
 374 };
 375
 376 struct line {
 377     int start, end;
 378 };
 379
 380 struct face {
 381     int corner[4];
 382     int line[4];
 383 };
 384
 385 /* initial, unrotated cube corners */
 386 static const struct point_3D sommet[8] =
 387 {
 388     {-DIST, -DIST, -DIST},
 389     { DIST, -DIST, -DIST},
 390     { DIST,  DIST, -DIST},
 391     {-DIST,  DIST, -DIST},
 392     {-DIST, -DIST,  DIST},
 393     { DIST, -DIST,  DIST},
 394     { DIST,  DIST,  DIST},
 395     {-DIST,  DIST,  DIST}
 396 };
 397
 398 /* The 12 lines forming the edges */
 399 static const struct line lines[12] =
 400 {
 401     {0, 1}, {1, 2}, {2, 3}, {3, 0},
 402     {4, 7}, {7, 6}, {6, 5}, {5, 4},
 403     {0, 4}, {1, 5}, {2, 6}, {3, 7}
 404 };
 405
 406 static bool lines_drawn[12];
 407
 408 /* The 6 faces of the cube; points are in clockwise order when viewed
 409    from the outside */
 410 static const struct face faces[6] =
 411 {
 412     {{0, 1, 2, 3}, {0, 1, 2, 3}},
 413     {{4, 7, 6, 5}, {4, 5, 6, 7}},
 414     {{0, 4, 5, 1}, {8, 7, 9, 0}},
 415     {{2, 6, 7, 3}, {10, 5, 11, 2}},
 416     {{0, 3, 7, 4}, {3, 11, 4, 8}},
 417     {{1, 5, 6, 2}, {9, 6, 10, 1}}
 418 };
 419
 420 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 421 static const unsigned face_colors[6] =
 422 {
 423 #ifdef HAVE_LCD_COLOR
 424     LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
 425     LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
 426 #elif defined(USEGSLIB)
 427 #ifdef MROBE_100
 428     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 429     GREY_DARKGRAY,  GREY_WHITE,     GREY_WHITE
 430 #else
 431     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 432     GREY_DARKGRAY,  GREY_BLACK,     GREY_BLACK
 433 #endif
 434 #else
 435     LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
 436     LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
 437 #endif
 438 };
 439 #endif
 440
 441 enum {
 442 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 443     SOLID,
 444 #endif
 445     HIDDEN_LINES,
 446     WIREFRAME,
 447     NUM_MODES
 448 };
 449
 450 static int mode = 0;
 451
 452 struct counter {
 453     const char *label;
 454     short speed;
 455     short angle;
 456 };
 457
 458 static struct counter axes[] = {
 459     {"x-axis", 1, 0},
 460     {"y-axis", 3, 0},
 461     {"z-axis", 2, 0}
 462 };
 463
 464 static struct point_3D point3D[8];
 465 static struct point_2D point2D[8];
 466 static long matrice[3][3];
 467
 468 static const int nb_points = 8;
 469 static long z_off = 600;
 470
 471 static void cube_rotate(int xa, int ya, int za)
 472 {
 473     int i;
 474     /* Just to prevent unnecessary lookups */
 475     long sxa, cxa, sya, cya, sza, cza;
 476
 477     sxa = fp14_sin(xa);
 478     cxa = fp14_cos(xa);
 479     sya = fp14_sin(ya);
 480     cya = fp14_cos(ya);
 481     sza = fp14_sin(za);
 482     cza = fp14_cos(za);
 483
 484     /* calculate overall translation matrix */
 485     matrice[0][0] = (cza * cya) >> 14;
 486     matrice[1][0] = (sza * cya) >> 14;
 487     matrice[2][0] = -sya;
 488
 489     matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
 490     matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
 491     matrice[2][1] = (sxa * cya) >> 14;
 492
 493     matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
 494     matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
 495     matrice[2][2] = (cxa * cya) >> 14;
 496
 497     /* apply translation matrix to all points */
 498     for (i = 0; i < nb_points; i++)
 499     {
 500         point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
 501                      + matrice[2][0] * sommet[i].z;
 502
 503         point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
 504                      + matrice[2][1] * sommet[i].z;
 505
 506         point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
 507                      + matrice[2][2] * sommet[i].z;
 508     }
 509 }
 510
 511 static void cube_viewport(void)
 512 {
 513     int i;
 514
 515     /* Do viewport transformation for all points */
 516     for (i = 0; i < nb_points; i++)
 517     {
 518 #if ASPECT != 256
 519         point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
 520                      + x_off;
 521 #else
 522         point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
 523                      + x_off;
 524 #endif
 525         point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
 526                      + y_off;
 527     }
 528 }
 529
 530 static void cube_draw(void)
 531 {
 532     int i, j, line;
 533 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 534     unsigned old_foreground;
 535 #endif
 536
 537     switch (mode)
 538     {
 539 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 540       case SOLID:
 541
 542         old_foreground = mylcd_get_foreground();
 543         for (i = 0; i < 6; i++)
 544         {
 545             /* backface culling; if the shape winds counter-clockwise, we are
 546              * looking at the backface, and the (simplified) cross product
 547              * is < 0. Do not draw it. */
 548             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 549                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 550                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 551                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 552                 continue;
 553
 554             mylcd_set_foreground(face_colors[i]);
 555             mylcd_filltriangle(point2D[faces[i].corner[0]].x,
 556                                point2D[faces[i].corner[0]].y,
 557                                point2D[faces[i].corner[1]].x,
 558                                point2D[faces[i].corner[1]].y,
 559                                point2D[faces[i].corner[2]].x,
 560                                point2D[faces[i].corner[2]].y);
 561             mylcd_filltriangle(point2D[faces[i].corner[0]].x,
 562                                point2D[faces[i].corner[0]].y,
 563                                point2D[faces[i].corner[2]].x,
 564                                point2D[faces[i].corner[2]].y,
 565                                point2D[faces[i].corner[3]].x,
 566                                point2D[faces[i].corner[3]].y);
 567
 568         }
 569         mylcd_set_foreground(old_foreground);
 570         break;
 571 #endif /* (LCD_DEPTH > 1) || GSLIB */
 572
 573       case HIDDEN_LINES:
 574
 575         rb->memset(lines_drawn, 0, sizeof(lines_drawn));
 576         for (i = 0; i < 6; i++)
 577         {
 578             /* backface culling; if the shape winds counter-clockwise, we are
 579              * looking at the backface, and the (simplified) cross product
 580              * is < 0. Do not draw it. */
 581             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 582                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 583                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 584                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 585                 continue;
 586
 587             for (j = 0; j < 4; j++)
 588             {
 589                 line = faces[i].line[j];
 590                 if (!lines_drawn[line])
 591                 {
 592                     lines_drawn[line] = true;
 593                     MYLCD(drawline)(point2D[lines[line].start].x,
 594                                     point2D[lines[line].start].y,
 595                                     point2D[lines[line].end].x,
 596                                     point2D[lines[line].end].y);
 597                 }
 598             }
 599         }
 600         break;
 601
 602       case WIREFRAME:
 603
 604         for (i = 0; i < 12; i++)
 605             MYLCD(drawline)(point2D[lines[i].start].x,
 606                             point2D[lines[i].start].y,
 607                             point2D[lines[i].end].x,
 608                             point2D[lines[i].end].y);
 609         break;
 610     }
 611 }
 612
 613 void cleanup(void)
 614 {
 615 #ifdef USEGSLIB
 616     grey_release();
 617 #elif defined HAVE_LCD_CHARCELLS
 618     pgfx_release();
 619 #endif
 620 }
 621
 622 enum plugin_status plugin_start(const void* parameter)
 623 {
 624     int t_disp = 0;
 625 #ifdef USEGSLIB
 626     unsigned char *gbuf;
 627     size_t gbuf_size = 0;
 628     bool mode_switch = true;
 629 #endif
 630
 631     int button;
 632     int lastbutton = BUTTON_NONE;
 633     int curr = 0;
 634     bool highspeed = false;
 635     bool paused = false;
 636     bool redraw = true;
 637     bool quit = false;
 638
 639     (void)(parameter);
 640
 641 #ifdef HAVE_LCD_BITMAP
 642 #if defined(USEGSLIB)
 643     gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
 644     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED,
 645                    LCD_WIDTH, LCD_HEIGHT, NULL))
 646     {
 647         rb->splash(HZ, "Couldn't init greyscale display");
 648         return PLUGIN_ERROR;
 649     }
 650
 651     /* init lcd_ function pointers */
 652     lcdfuncs.update =        rb->lcd_update;
 653     lcdfuncs.clear_display = rb->lcd_clear_display;
 654     lcdfuncs.drawline =      rb->lcd_drawline;
 655     lcdfuncs.putsxy =        rb->lcd_putsxy;
 656
 657 #ifdef MROBE_100
 658     grey_set_background(GREY_BLACK);
 659 #endif
 660
 661     grey_setfont(FONT_SYSFIXED);
 662 #endif
 663     rb->lcd_setfont(FONT_SYSFIXED);
 664 #else /* LCD_CHARCELLS */
 665     if (!pgfx_init(4, 2))
 666     {
 667         rb->splash(HZ*2, "Old LCD :(");
 668         return PLUGIN_OK;
 669     }
 670     pgfx_display(0, 0);
 671 #endif
 672
 673     atexit(cleanup);
 674     while(!quit)
 675     {
 676         if (redraw)
 677         {
 678             MYLCD(clear_display)();
 679             cube_rotate(axes[0].angle, axes[1].angle, axes[2].angle);
 680             cube_viewport();
 681             cube_draw();
 682             redraw = false;
 683         }
 684
 685 #ifdef HAVE_LCD_BITMAP
 686         if (t_disp > 0)
 687         {
 688             char buffer[30];
 689             t_disp--;
 690             rb->snprintf(buffer, sizeof(buffer), "%s: %d %s",
 691                          axes[curr].label,
 692                          paused ? axes[curr].angle : axes[curr].speed,
 693                          highspeed ? "(hs)" : "");
 694             MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
 695             if (t_disp == 0)
 696                 redraw = true;
 697         }
 698 #else
 699         if (t_disp > 0)
 700         {
 701             if (t_disp == DISP_TIME)
 702             {
 703                 rb->lcd_puts(5, 0, axes[curr].label);
 704                 rb->lcd_putsf(5, 1, "%d %c",
 705                              paused ? axes[curr].angle : axes[curr].speed,
 706                              highspeed ? 'H' : ' ');
 707             }
 708             t_disp--;
 709             if (t_disp == 0)
 710             {
 711                 rb->lcd_clear_display();
 712                 pgfx_display(0, 0);
 713             }
 714         }
 715 #endif
 716 #ifdef USEGSLIB
 717         if (mode_switch)
 718         {
 719             grey_show(mode == SOLID);
 720             mode_switch = false;
 721         }
 722 #endif
 723         MYLCD(update)();
 724
 725         if (!paused)
 726         {
 727             int i;
 728
 729             for (i = 0; i < 3; i++)
 730             {
 731                 axes[i].angle += axes[i].speed;
 732                 if (axes[i].angle > 359)
 733                     axes[i].angle -= 360;
 734                 else if (axes[i].angle < 0)
 735                     axes[i].angle += 360;
 736             }
 737             redraw = true;
 738
 739             if (highspeed)
 740                 rb->yield();
 741             else
 742                 rb->sleep(HZ/25);
 743             button = rb->button_get(false);
 744         }
 745         else
 746         {
 747             button = rb->button_get_w_tmo(HZ/25);
 748         }
 749
 750         switch (button)
 751         {
 752             case CUBE_INC:
 753             case CUBE_INC|BUTTON_REPEAT:
 754                 if (!paused)
 755                 {
 756                     if (axes[curr].speed < 10)
 757                         axes[curr].speed++;
 758                 }
 759                 else
 760                 {
 761                     if (++axes[curr].angle > 359)
 762                         axes[curr].angle -= 360;
 763                 }
 764                 t_disp = DISP_TIME;
 765                 redraw = true;
 766                 break;
 767
 768             case CUBE_DEC:
 769             case CUBE_DEC|BUTTON_REPEAT:
 770                 if (!paused)
 771                 {
 772                     if (axes[curr].speed > -10)
 773                         axes[curr].speed--;
 774                 }
 775                 else
 776                 {
 777                     if (--axes[curr].angle < 0)
 778                         axes[curr].angle += 360;
 779                 }
 780                 t_disp = DISP_TIME;
 781                 redraw = true;
 782                 break;
 783
 784             case CUBE_NEXT:
 785                 if (++curr > 2)
 786                     curr = 0;
 787                 t_disp = DISP_TIME;
 788                 break;
 789
 790             case CUBE_PREV:
 791                 if (--curr < 0)
 792                     curr = 2;
 793                 t_disp = DISP_TIME;
 794                 break;
 795
 796             case CUBE_MODE:
 797 #ifdef CUBE_MODE_PRE
 798                 if (lastbutton != CUBE_MODE_PRE)
 799                     break;
 800 #endif
 801                 if (++mode >= NUM_MODES)
 802                     mode = 0;
 803 #ifdef USEGSLIB
 804                 mylcd = (mode == SOLID) ? &greyfuncs : &lcdfuncs;
 805                 mode_switch = true;
 806 #endif
 807                 redraw = true;
 808                 break;
 809
 810             case CUBE_PAUSE:
 811 #ifdef CUBE_PAUSE_PRE
 812                 if (lastbutton != CUBE_PAUSE_PRE)
 813                     break;
 814 #endif
 815                 paused = !paused;
 816                 break;
 817
 818             case CUBE_HIGHSPEED:
 819 #ifdef CUBE_HIGHSPEED_PRE
 820                 if (lastbutton != CUBE_HIGHSPEED_PRE)
 821                     break;
 822 #endif
 823                 highspeed = !highspeed;
 824                 t_disp = DISP_TIME;
 825                 break;
 826
 827 #ifdef CUBE_RC_QUIT
 828             case CUBE_RC_QUIT:
 829 #endif
 830             case CUBE_QUIT:
 831                 exit(EXIT_SUCCESS);
 832                 break;
 833
 834             default:
 835                 exit_on_usb(button);
 836                 break;
 837         }
 838         if (button != BUTTON_NONE)
 839             lastbutton = button;
 840     }
 841
 842     return PLUGIN_OK;
 843 }
 844
 845