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/grey.h"
  25 #include "lib/playergfx.h"
  26 #include "lib/xlcd.h"
  27 #include "lib/fixedpoint.h"
  28
  29 PLUGIN_HEADER
  30
  31 /* Loops that the values are displayed */
  32 #define DISP_TIME 30
  33
  34 /* variable button definitions */
  35 #if CONFIG_KEYPAD == RECORDER_PAD
  36 #define CUBE_QUIT          BUTTON_OFF
  37 #define CUBE_NEXT          BUTTON_RIGHT
  38 #define CUBE_PREV          BUTTON_LEFT
  39 #define CUBE_INC           BUTTON_UP
  40 #define CUBE_DEC           BUTTON_DOWN
  41 #define CUBE_MODE          BUTTON_F1
  42 #define CUBE_PAUSE         BUTTON_PLAY
  43 #define CUBE_HIGHSPEED     BUTTON_ON
  44
  45 #elif CONFIG_KEYPAD == ARCHOS_AV300_PAD
  46 #define CUBE_QUIT          BUTTON_OFF
  47 #define CUBE_NEXT          BUTTON_RIGHT
  48 #define CUBE_PREV          BUTTON_LEFT
  49 #define CUBE_INC           BUTTON_UP
  50 #define CUBE_DEC           BUTTON_DOWN
  51 #define CUBE_MODE          BUTTON_F1
  52 #define CUBE_PAUSE         BUTTON_SELECT
  53 #define CUBE_HIGHSPEED     BUTTON_ON
  54
  55 #elif CONFIG_KEYPAD == PLAYER_PAD
  56 #define CUBE_QUIT          BUTTON_STOP
  57 #define CUBE_INC           BUTTON_RIGHT
  58 #define CUBE_DEC           BUTTON_LEFT
  59 #define CUBE_NEXT          (BUTTON_ON | BUTTON_RIGHT)
  60 #define CUBE_PREV          (BUTTON_ON | BUTTON_LEFT)
  61 #define CUBE_MODE          BUTTON_MENU
  62 #define CUBE_PAUSE         BUTTON_PLAY
  63 #define CUBE_HIGHSPEED_PRE BUTTON_ON
  64 #define CUBE_HIGHSPEED     (BUTTON_ON | BUTTON_REL)
  65
  66 #elif CONFIG_KEYPAD == ONDIO_PAD
  67 #define CUBE_QUIT          BUTTON_OFF
  68 #define CUBE_NEXT          BUTTON_RIGHT
  69 #define CUBE_PREV          BUTTON_LEFT
  70 #define CUBE_INC           BUTTON_UP
  71 #define CUBE_DEC           BUTTON_DOWN
  72 #define CUBE_MODE_PRE      BUTTON_MENU
  73 #define CUBE_MODE          (BUTTON_MENU | BUTTON_REL)
  74 #define CUBE_PAUSE         (BUTTON_MENU | BUTTON_LEFT)
  75 #define CUBE_HIGHSPEED     (BUTTON_MENU | BUTTON_RIGHT)
  76
  77 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  78       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  79 #define CUBE_QUIT          BUTTON_OFF
  80 #define CUBE_NEXT          BUTTON_RIGHT
  81 #define CUBE_PREV          BUTTON_LEFT
  82 #define CUBE_INC           BUTTON_UP
  83 #define CUBE_DEC           BUTTON_DOWN
  84 #define CUBE_MODE          BUTTON_MODE
  85 #define CUBE_PAUSE         BUTTON_ON
  86 #define CUBE_HIGHSPEED     BUTTON_SELECT
  87
  88 #define CUBE_RC_QUIT       BUTTON_RC_STOP
  89
  90 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
  91       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
  92       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
  93 #define CUBE_QUIT          (BUTTON_SELECT | BUTTON_MENU)
  94 #define CUBE_NEXT          BUTTON_RIGHT
  95 #define CUBE_PREV          BUTTON_LEFT
  96 #define CUBE_INC           BUTTON_SCROLL_FWD
  97 #define CUBE_DEC           BUTTON_SCROLL_BACK
  98 #define CUBE_MODE          BUTTON_MENU
  99 #define CUBE_PAUSE         BUTTON_PLAY
 100 #define CUBE_HIGHSPEED_PRE BUTTON_SELECT
 101 #define CUBE_HIGHSPEED     (BUTTON_SELECT | BUTTON_REL)
 102
 103 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
 104 #define CUBE_QUIT          BUTTON_PLAY
 105 #define CUBE_NEXT          BUTTON_RIGHT
 106 #define CUBE_PREV          BUTTON_LEFT
 107 #define CUBE_INC           BUTTON_UP
 108 #define CUBE_DEC           BUTTON_DOWN
 109 #define CUBE_MODE          BUTTON_MODE
 110 #define CUBE_PAUSE         BUTTON_SELECT
 111 #define CUBE_HIGHSPEED     BUTTON_EQ
 112
 113 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
 114 #define CUBE_QUIT          BUTTON_POWER
 115 #define CUBE_NEXT          BUTTON_RIGHT
 116 #define CUBE_PREV          BUTTON_LEFT
 117 #define CUBE_INC           BUTTON_UP
 118 #define CUBE_DEC           BUTTON_DOWN
 119 #define CUBE_MODE          BUTTON_REC
 120 #define CUBE_PAUSE         BUTTON_PLAY
 121 #define CUBE_HIGHSPEED     BUTTON_SELECT
 122
 123 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
 124 #define CUBE_QUIT          BUTTON_POWER
 125 #define CUBE_NEXT          BUTTON_RIGHT
 126 #define CUBE_PREV          BUTTON_LEFT
 127 #define CUBE_INC           BUTTON_UP
 128 #define CUBE_DEC           BUTTON_DOWN
 129 #define CUBE_MODE          BUTTON_MENU
 130 #define CUBE_PAUSE         BUTTON_SELECT
 131 #define CUBE_HIGHSPEED     BUTTON_A
 132
 133 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 134 #define CUBE_QUIT          BUTTON_POWER
 135 #define CUBE_NEXT          BUTTON_RIGHT
 136 #define CUBE_PREV          BUTTON_LEFT
 137 #define CUBE_INC           BUTTON_SCROLL_FWD
 138 #define CUBE_DEC           BUTTON_SCROLL_BACK
 139 #define CUBE_MODE          BUTTON_DOWN
 140 #define CUBE_PAUSE         BUTTON_UP
 141 #define CUBE_HIGHSPEED     BUTTON_SELECT
 142
 143 #elif (CONFIG_KEYPAD == SANSA_FUZE_PAD)
 144 #define CUBE_QUIT          (BUTTON_HOME|BUTTON_REPEAT)
 145 #define CUBE_NEXT          BUTTON_RIGHT
 146 #define CUBE_PREV          BUTTON_LEFT
 147 #define CUBE_INC           BUTTON_SCROLL_FWD
 148 #define CUBE_DEC           BUTTON_SCROLL_BACK
 149 #define CUBE_MODE          BUTTON_DOWN
 150 #define CUBE_PAUSE         BUTTON_UP
 151 #define CUBE_HIGHSPEED     BUTTON_SELECT
 152
 153 #elif (CONFIG_KEYPAD == SANSA_C200_PAD) || \
 154 (CONFIG_KEYPAD == SANSA_CLIP_PAD) || \
 155 (CONFIG_KEYPAD == SANSA_M200_PAD)
 156 #define CUBE_QUIT          BUTTON_POWER
 157 #define CUBE_NEXT          BUTTON_RIGHT
 158 #define CUBE_PREV          BUTTON_LEFT
 159 #define CUBE_INC           BUTTON_VOL_UP
 160 #define CUBE_DEC           BUTTON_VOL_DOWN
 161 #define CUBE_MODE          BUTTON_DOWN
 162 #define CUBE_PAUSE         BUTTON_UP
 163 #define CUBE_HIGHSPEED     BUTTON_SELECT
 164
 165
 166 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
 167 #define CUBE_QUIT          BUTTON_POWER
 168 #define CUBE_NEXT          BUTTON_RIGHT
 169 #define CUBE_PREV          BUTTON_LEFT
 170 #define CUBE_INC           BUTTON_SCROLL_UP
 171 #define CUBE_DEC           BUTTON_SCROLL_DOWN
 172 #define CUBE_MODE          BUTTON_REW
 173 #define CUBE_PAUSE         BUTTON_PLAY
 174 #define CUBE_HIGHSPEED     BUTTON_FF
 175
 176 #elif CONFIG_KEYPAD == MROBE500_PAD
 177 #define CUBE_QUIT          BUTTON_POWER
 178
 179 #elif CONFIG_KEYPAD == GIGABEAT_S_PAD
 180 #define CUBE_QUIT          BUTTON_BACK
 181 #define CUBE_NEXT          BUTTON_RIGHT
 182 #define CUBE_PREV          BUTTON_LEFT
 183 #define CUBE_INC           BUTTON_UP
 184 #define CUBE_DEC           BUTTON_DOWN
 185 #define CUBE_MODE          BUTTON_MENU
 186 #define CUBE_PAUSE         BUTTON_PLAY
 187 #define CUBE_HIGHSPEED     BUTTON_SELECT
 188
 189 #elif (CONFIG_KEYPAD == MROBE100_PAD)
 190 #define CUBE_QUIT          BUTTON_POWER
 191 #define CUBE_NEXT          BUTTON_RIGHT
 192 #define CUBE_PREV          BUTTON_LEFT
 193 #define CUBE_INC           BUTTON_UP
 194 #define CUBE_DEC           BUTTON_DOWN
 195 #define CUBE_MODE          BUTTON_MENU
 196 #define CUBE_PAUSE         BUTTON_PLAY
 197 #define CUBE_HIGHSPEED     BUTTON_SELECT
 198
 199 #elif (CONFIG_KEYPAD == IAUDIO_M3_PAD)
 200 #define CUBE_QUIT          BUTTON_RC_REC
 201 #define CUBE_NEXT          BUTTON_RC_FF
 202 #define CUBE_PREV          BUTTON_RC_REW
 203 #define CUBE_INC           BUTTON_RC_VOL_UP
 204 #define CUBE_DEC           BUTTON_RC_VOL_DOWN
 205 #define CUBE_MODE          BUTTON_RC_MODE
 206 #define CUBE_PAUSE         BUTTON_RC_PLAY
 207 #define CUBE_HIGHSPEED     BUTTON_RC_MENU
 208
 209 #elif CONFIG_KEYPAD == COWOND2_PAD
 210 #define CUBE_QUIT          BUTTON_POWER
 211
 212 #elif (CONFIG_KEYPAD == IAUDIO67_PAD)
 213 #define CUBE_QUIT          BUTTON_POWER
 214 #define CUBE_NEXT          BUTTON_RIGHT
 215 #define CUBE_PREV          BUTTON_LEFT
 216 #define CUBE_INC           BUTTON_VOLUP
 217 #define CUBE_DEC           BUTTON_VOLDOWN
 218 #define CUBE_MODE          BUTTON_MENU
 219 #define CUBE_PAUSE         BUTTON_PLAY
 220 #define CUBE_HIGHSPEED     BUTTON_STOP
 221
 222 #elif CONFIG_KEYPAD == CREATIVEZVM_PAD
 223 #define CUBE_QUIT          BUTTON_BACK
 224 #define CUBE_NEXT          BUTTON_RIGHT
 225 #define CUBE_PREV          BUTTON_LEFT
 226 #define CUBE_INC           BUTTON_UP
 227 #define CUBE_DEC           BUTTON_DOWN
 228 #define CUBE_MODE          BUTTON_MENU
 229 #define CUBE_PAUSE         BUTTON_PLAY
 230 #define CUBE_HIGHSPEED     BUTTON_SELECT
 231
 232 #elif CONFIG_KEYPAD == PHILIPS_HDD1630_PAD
 233 #define CUBE_QUIT          BUTTON_POWER
 234 #define CUBE_NEXT          BUTTON_RIGHT
 235 #define CUBE_PREV          BUTTON_LEFT
 236 #define CUBE_INC           BUTTON_UP
 237 #define CUBE_DEC           BUTTON_DOWN
 238 #define CUBE_MODE          BUTTON_MENU
 239 #define CUBE_PAUSE         BUTTON_SELECT
 240 #define CUBE_HIGHSPEED     BUTTON_VIEW
 241
 242 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 243 #define CUBE_QUIT          BUTTON_POWER
 244
 245 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 246 #define CUBE_QUIT          BUTTON_REC
 247 #define CUBE_NEXT          BUTTON_RIGHT
 248 #define CUBE_PREV          BUTTON_LEFT
 249 #define CUBE_INC           BUTTON_UP
 250 #define CUBE_DEC           BUTTON_DOWN
 251 #define CUBE_MODE          BUTTON_REW
 252 #define CUBE_PAUSE         BUTTON_PLAY
 253 #define CUBE_HIGHSPEED     BUTTON_FFWD
 254
 255
 256 #else
 257 #error No keymap defined!
 258 #endif
 259
 260 #ifdef HAVE_TOUCHSCREEN
 261 #ifndef CUBE_QUIT
 262 #define CUBE_QUIT          BUTTON_TOPLEFT
 263 #endif
 264 #ifndef CUBE_NEXT
 265 #define CUBE_NEXT          BUTTON_MIDRIGHT
 266 #endif
 267 #ifndef CUBE_PREV
 268 #define CUBE_PREV          BUTTON_MIDLEFT
 269 #endif
 270 #ifndef CUBE_INC
 271 #define CUBE_INC           BUTTON_TOPMIDDLE
 272 #endif
 273 #ifndef CUBE_DEC
 274 #define CUBE_DEC           BUTTON_BOTTOMMIDDLE
 275 #endif
 276 #ifndef CUBE_MODE
 277 #define CUBE_MODE          BUTTON_TOPRIGHT
 278 #endif
 279 #ifndef CUBE_PAUSE
 280 #define CUBE_PAUSE         BUTTON_CENTER
 281 #endif
 282 #ifndef CUBE_HIGHSPEED
 283 #define CUBE_HIGHSPEED     BUTTON_BOTTOMRIGHT
 284 #endif
 285 #endif
 286
 287
 288 #ifdef HAVE_LCD_BITMAP
 289
 290 #define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
 291 static int x_off = LCD_WIDTH/2;
 292 static int y_off = LCD_HEIGHT/2;
 293
 294 #if LCD_DEPTH == 1
 295 #define USE_GSLIB
 296 GREY_INFO_STRUCT
 297 struct my_lcd {
 298     void (*update)(void);
 299     void (*clear_display)(void);
 300     void (*drawline)(int x1, int y1, int x2, int y2);
 301     void (*putsxy)(int x, int y, const unsigned char *string);
 302 };
 303
 304 static struct my_lcd greyfuncs = {
 305     grey_update, grey_clear_display, grey_drawline, grey_putsxy
 306 };
 307 static struct my_lcd lcdfuncs; /* initialised at runtime */
 308 static struct my_lcd *mylcd = &greyfuncs;
 309
 310 #define MYLCD(fn) mylcd->fn
 311 #define MY_FILLTRIANGLE(x1, y1, x2, y2, x3, y3) grey_filltriangle(x1, y1, x2, y2, x3, y3)
 312 #define MY_SET_FOREGROUND(fg) grey_set_foreground(fg)
 313 #define MY_GET_FOREGROUND() grey_get_foreground()
 314
 315 #else
 316 #define MYLCD(fn) rb->lcd_ ## fn
 317 #define MY_FILLTRIANGLE(x1, y1, x2, y2, x3, y3) xlcd_filltriangle(x1, y1, x2, y2, x3, y3)
 318 #define MY_SET_FOREGROUND(fg) rb->lcd_set_foreground(fg)
 319 #define MY_GET_FOREGROUND() rb->lcd_get_foreground()
 320 #endif
 321
 322 #if CONFIG_LCD == LCD_SSD1815
 323 #define ASPECT 320 /* = 1.25 (fixed point 24.8) */
 324 #else
 325 #define ASPECT 256 /* = 1.00 */
 326 #endif
 327
 328 #else /* !LCD_BITMAP */
 329
 330 #define MYLCD(fn) pgfx_ ## fn
 331 #define DIST 9
 332 static int x_off = 10;
 333 static int y_off = 7;
 334 #define ASPECT 300 /* = 1.175 */
 335
 336 #endif /* !LCD_BITMAP */
 337
 338 struct point_3D {
 339     long x, y, z;
 340 };
 341
 342 struct point_2D {
 343     long x, y;
 344 };
 345
 346 struct line {
 347     int start, end;
 348 };
 349
 350 struct face {
 351     int corner[4];
 352     int line[4];
 353 };
 354
 355 /* initial, unrotated cube corners */
 356 static const struct point_3D sommet[8] =
 357 {
 358     {-DIST, -DIST, -DIST},
 359     { DIST, -DIST, -DIST},
 360     { DIST,  DIST, -DIST},
 361     {-DIST,  DIST, -DIST},
 362     {-DIST, -DIST,  DIST},
 363     { DIST, -DIST,  DIST},
 364     { DIST,  DIST,  DIST},
 365     {-DIST,  DIST,  DIST}
 366 };
 367
 368 /* The 12 lines forming the edges */
 369 static const struct line lines[12] =
 370 {
 371     {0, 1}, {1, 2}, {2, 3}, {3, 0},
 372     {4, 7}, {7, 6}, {6, 5}, {5, 4},
 373     {0, 4}, {1, 5}, {2, 6}, {3, 7}
 374 };
 375
 376 static bool lines_drawn[12];
 377
 378 /* The 6 faces of the cube; points are in clockwise order when viewed
 379    from the outside */
 380 static const struct face faces[6] =
 381 {
 382     {{0, 1, 2, 3}, {0, 1, 2, 3}},
 383     {{4, 7, 6, 5}, {4, 5, 6, 7}},
 384     {{0, 4, 5, 1}, {8, 7, 9, 0}},
 385     {{2, 6, 7, 3}, {10, 5, 11, 2}},
 386     {{0, 3, 7, 4}, {3, 11, 4, 8}},
 387     {{1, 5, 6, 2}, {9, 6, 10, 1}}
 388 };
 389
 390 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 391 static const unsigned face_colors[6] =
 392 {
 393 #ifdef HAVE_LCD_COLOR
 394     LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
 395     LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
 396 #elif defined(USE_GSLIB)
 397 #ifdef MROBE_100
 398     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 399     GREY_DARKGRAY,  GREY_WHITE,     GREY_WHITE
 400 #else
 401     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 402     GREY_DARKGRAY,  GREY_BLACK,     GREY_BLACK
 403 #endif
 404 #else
 405     LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
 406     LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
 407 #endif
 408 };
 409 #endif
 410
 411 enum {
 412 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 413     SOLID,
 414 #endif
 415     HIDDEN_LINES,
 416     WIREFRAME,
 417     NUM_MODES
 418 };
 419
 420 static int mode = 0;
 421
 422 struct counter {
 423     const char *label;
 424     short speed;
 425     short angle;
 426 };
 427
 428 static struct counter axes[] = {
 429     {"x-axis", 1, 0},
 430     {"y-axis", 3, 0},
 431     {"z-axis", 2, 0}
 432 };
 433
 434 static struct point_3D point3D[8];
 435 static struct point_2D point2D[8];
 436 static long matrice[3][3];
 437
 438 static const int nb_points = 8;
 439 static long z_off = 600;
 440
 441 static void cube_rotate(int xa, int ya, int za)
 442 {
 443     int i;
 444     /* Just to prevent unnecessary lookups */
 445     long sxa, cxa, sya, cya, sza, cza;
 446
 447     sxa = fp14_sin(xa);
 448     cxa = fp14_cos(xa);
 449     sya = fp14_sin(ya);
 450     cya = fp14_cos(ya);
 451     sza = fp14_sin(za);
 452     cza = fp14_cos(za);
 453
 454     /* calculate overall translation matrix */
 455     matrice[0][0] = (cza * cya) >> 14;
 456     matrice[1][0] = (sza * cya) >> 14;
 457     matrice[2][0] = -sya;
 458
 459     matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
 460     matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
 461     matrice[2][1] = (sxa * cya) >> 14;
 462
 463     matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
 464     matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
 465     matrice[2][2] = (cxa * cya) >> 14;
 466
 467     /* apply translation matrix to all points */
 468     for (i = 0; i < nb_points; i++)
 469     {
 470         point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
 471                      + matrice[2][0] * sommet[i].z;
 472
 473         point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
 474                      + matrice[2][1] * sommet[i].z;
 475
 476         point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
 477                      + matrice[2][2] * sommet[i].z;
 478     }
 479 }
 480
 481 static void cube_viewport(void)
 482 {
 483     int i;
 484
 485     /* Do viewport transformation for all points */
 486     for (i = 0; i < nb_points; i++)
 487     {
 488 #if ASPECT != 256
 489         point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
 490                      + x_off;
 491 #else
 492         point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
 493                      + x_off;
 494 #endif
 495         point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
 496                      + y_off;
 497     }
 498 }
 499
 500 static void cube_draw(void)
 501 {
 502     int i, j, line;
 503 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 504     unsigned old_foreground;
 505 #endif
 506
 507     switch (mode)
 508     {
 509 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 510       case SOLID:
 511
 512         old_foreground = MY_GET_FOREGROUND();
 513         for (i = 0; i < 6; i++)
 514         {
 515             /* backface culling; if the shape winds counter-clockwise, we are
 516              * looking at the backface, and the (simplified) cross product
 517              * is < 0. Do not draw it. */
 518             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 519                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 520                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 521                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 522                 continue;
 523
 524             MY_SET_FOREGROUND(face_colors[i]);
 525             MY_FILLTRIANGLE(point2D[faces[i].corner[0]].x,
 526                             point2D[faces[i].corner[0]].y,
 527                             point2D[faces[i].corner[1]].x,
 528                             point2D[faces[i].corner[1]].y,
 529                             point2D[faces[i].corner[2]].x,
 530                             point2D[faces[i].corner[2]].y);
 531             MY_FILLTRIANGLE(point2D[faces[i].corner[0]].x,
 532                             point2D[faces[i].corner[0]].y,
 533                             point2D[faces[i].corner[2]].x,
 534                             point2D[faces[i].corner[2]].y,
 535                             point2D[faces[i].corner[3]].x,
 536                             point2D[faces[i].corner[3]].y);
 537
 538         }
 539         MY_SET_FOREGROUND(old_foreground);
 540         break;
 541 #endif /* (LCD_DEPTH > 1) || GSLIB */
 542
 543       case HIDDEN_LINES:
 544
 545         rb->memset(lines_drawn, 0, sizeof(lines_drawn));
 546         for (i = 0; i < 6; i++)
 547         {
 548             /* backface culling; if the shape winds counter-clockwise, we are
 549              * looking at the backface, and the (simplified) cross product
 550              * is < 0. Do not draw it. */
 551             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 552                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 553                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 554                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 555                 continue;
 556
 557             for (j = 0; j < 4; j++)
 558             {
 559                 line = faces[i].line[j];
 560                 if (!lines_drawn[line])
 561                 {
 562                     lines_drawn[line] = true;
 563                     MYLCD(drawline)(point2D[lines[line].start].x,
 564                                     point2D[lines[line].start].y,
 565                                     point2D[lines[line].end].x,
 566                                     point2D[lines[line].end].y);
 567                 }
 568             }
 569         }
 570         break;
 571
 572       case WIREFRAME:
 573
 574         for (i = 0; i < 12; i++)
 575             MYLCD(drawline)(point2D[lines[i].start].x,
 576                             point2D[lines[i].start].y,
 577                             point2D[lines[i].end].x,
 578                             point2D[lines[i].end].y);
 579         break;
 580     }
 581 }
 582
 583 static void cleanup(UNUSED_ATTR void *parameter)
 584 {
 585 #ifdef USE_GSLIB
 586     grey_release();
 587 #elif defined HAVE_LCD_CHARCELLS
 588     pgfx_release();
 589 #endif
 590 }
 591
 592 enum plugin_status plugin_start(UNUSED_ATTR const void* parameter)
 593 {
 594     char buffer[30];
 595     int t_disp = 0;
 596 #ifdef USE_GSLIB
 597     unsigned char *gbuf;
 598     size_t gbuf_size = 0;
 599     bool mode_switch = true;
 600 #endif
 601
 602     int button;
 603     int lastbutton = BUTTON_NONE;
 604     int curr = 0;
 605     bool highspeed = false;
 606     bool paused = false;
 607     bool redraw = true;
 608     bool exit = false;
 609
 610 #ifdef HAVE_LCD_BITMAP
 611 #if defined(USE_GSLIB)
 612     gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
 613     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED,
 614                    LCD_WIDTH, LCD_HEIGHT, NULL))
 615     {
 616         rb->splash(HZ, "Couldn't init greyscale display");
 617         return PLUGIN_ERROR;
 618     }
 619     /* init lcd_ function pointers */
 620     lcdfuncs.update =        rb->lcd_update;
 621     lcdfuncs.clear_display = rb->lcd_clear_display;
 622     lcdfuncs.drawline =      rb->lcd_drawline;
 623     lcdfuncs.putsxy =        rb->lcd_putsxy;
 624
 625 #ifdef MROBE_100
 626     grey_set_background(GREY_BLACK);
 627 #endif
 628
 629     grey_setfont(FONT_SYSFIXED);
 630 #endif
 631     rb->lcd_setfont(FONT_SYSFIXED);
 632 #else /* LCD_CHARCELLS */
 633     if (!pgfx_init(4, 2))
 634     {
 635         rb->splash(HZ*2, "Old LCD :(");
 636         return PLUGIN_OK;
 637     }
 638     pgfx_display(0, 0);
 639 #endif
 640
 641     while(!exit)
 642     {
 643         if (redraw)
 644         {
 645             MYLCD(clear_display)();
 646             cube_rotate(axes[0].angle, axes[1].angle, axes[2].angle);
 647             cube_viewport();
 648             cube_draw();
 649             redraw = false;
 650         }
 651
 652 #ifdef HAVE_LCD_BITMAP
 653         if (t_disp > 0)
 654         {
 655             t_disp--;
 656             rb->snprintf(buffer, sizeof(buffer), "%s: %d %s",
 657                          axes[curr].label,
 658                          paused ? axes[curr].angle : axes[curr].speed,
 659                          highspeed ? "(hs)" : "");
 660             MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
 661             if (t_disp == 0)
 662                 redraw = true;
 663         }
 664 #else
 665         if (t_disp > 0)
 666         {
 667             if (t_disp == DISP_TIME)
 668             {
 669                 rb->lcd_puts(5, 0, axes[curr].label);
 670                 rb->snprintf(buffer, sizeof(buffer), "%d %c",
 671                              paused ? axes[curr].angle : axes[curr].speed,
 672                              highspeed ? 'H' : ' ');
 673                 rb->lcd_puts(5, 1, buffer);
 674             }
 675             t_disp--;
 676             if (t_disp == 0)
 677             {
 678                 rb->lcd_clear_display();
 679                 pgfx_display(0, 0);
 680             }
 681         }
 682 #endif
 683 #ifdef USE_GSLIB
 684         if (mode_switch)
 685         {
 686             grey_show(mode == SOLID);
 687             mode_switch = false;
 688         }
 689 #endif
 690         MYLCD(update)();
 691
 692         if (!paused)
 693         {
 694             int i;
 695
 696             for (i = 0; i < 3; i++)
 697             {
 698                 axes[i].angle += axes[i].speed;
 699                 if (axes[i].angle > 359)
 700                     axes[i].angle -= 360;
 701                 else if (axes[i].angle < 0)
 702                     axes[i].angle += 360;
 703             }
 704             redraw = true;
 705
 706             if (highspeed)
 707                 rb->yield();
 708             else
 709                 rb->sleep(HZ/25);
 710             button = rb->button_get(false);
 711         }
 712         else
 713         {
 714             button = rb->button_get_w_tmo(HZ/25);
 715         }
 716
 717         switch (button)
 718         {
 719             case CUBE_INC:
 720             case CUBE_INC|BUTTON_REPEAT:
 721                 if (!paused)
 722                 {
 723                     if (axes[curr].speed < 10)
 724                         axes[curr].speed++;
 725                 }
 726                 else
 727                 {
 728                     if (++axes[curr].angle > 359)
 729                         axes[curr].angle -= 360;
 730                 }
 731                 t_disp = DISP_TIME;
 732                 redraw = true;
 733                 break;
 734
 735             case CUBE_DEC:
 736             case CUBE_DEC|BUTTON_REPEAT:
 737                 if (!paused)
 738                 {
 739                     if (axes[curr].speed > -10)
 740                         axes[curr].speed--;
 741                 }
 742                 else
 743                 {
 744                     if (--axes[curr].angle < 0)
 745                         axes[curr].angle += 360;
 746                 }
 747                 t_disp = DISP_TIME;
 748                 redraw = true;
 749                 break;
 750
 751             case CUBE_NEXT:
 752                 if (++curr > 2)
 753                     curr = 0;
 754                 t_disp = DISP_TIME;
 755                 break;
 756
 757             case CUBE_PREV:
 758                 if (--curr < 0)
 759                     curr = 2;
 760                 t_disp = DISP_TIME;
 761                 break;
 762
 763             case CUBE_MODE:
 764 #ifdef CUBE_MODE_PRE
 765                 if (lastbutton != CUBE_MODE_PRE)
 766                     break;
 767 #endif
 768                 if (++mode >= NUM_MODES)
 769                     mode = 0;
 770 #ifdef USE_GSLIB
 771                 mylcd = (mode == SOLID) ? &greyfuncs : &lcdfuncs;
 772                 mode_switch = true;
 773 #endif
 774                 redraw = true;
 775                 break;
 776
 777             case CUBE_PAUSE:
 778 #ifdef CUBE_PAUSE_PRE
 779                 if (lastbutton != CUBE_PAUSE_PRE)
 780                     break;
 781 #endif
 782                 paused = !paused;
 783                 break;
 784
 785             case CUBE_HIGHSPEED:
 786 #ifdef CUBE_HIGHSPEED_PRE
 787                 if (lastbutton != CUBE_HIGHSPEED_PRE)
 788                     break;
 789 #endif
 790                 highspeed = !highspeed;
 791                 t_disp = DISP_TIME;
 792                 break;
 793
 794 #ifdef CUBE_RC_QUIT
 795             case CUBE_RC_QUIT:
 796 #endif
 797             case CUBE_QUIT:
 798                 exit = true;
 799                 break;
 800
 801             default:
 802                 if (rb->default_event_handler_ex(button, cleanup, NULL)
 803                     == SYS_USB_CONNECTED)
 804                     return PLUGIN_USB_CONNECTED;
 805                 break;
 806         }
 807         if (button != BUTTON_NONE)
 808             lastbutton = button;
 809     }
 810
 811 #ifdef USE_GSLIB
 812     grey_release();
 813 #elif defined(HAVE_LCD_CHARCELLS)
 814     pgfx_release();
 815 #endif
 816     return PLUGIN_OK;
 817 }
 818
 819