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 == COWON_D2_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 == PHILIPS_SA9200_PAD
 243 #define CUBE_QUIT          BUTTON_POWER
 244 #define CUBE_NEXT          BUTTON_NEXT
 245 #define CUBE_PREV          BUTTON_PREV
 246 #define CUBE_INC           BUTTON_UP
 247 #define CUBE_DEC           BUTTON_DOWN
 248 #define CUBE_MODE          BUTTON_MENU
 249 #define CUBE_PAUSE         BUTTON_PLAY
 250 #define CUBE_HIGHSPEED     BUTTON_RIGHT
 251
 252 #elif CONFIG_KEYPAD == ONDAVX747_PAD
 253 #define CUBE_QUIT          BUTTON_POWER
 254 #elif CONFIG_KEYPAD == ONDAVX777_PAD
 255 #define CUBE_QUIT          BUTTON_POWER
 256
 257 #elif CONFIG_KEYPAD == SAMSUNG_YH_PAD
 258 #define CUBE_QUIT          BUTTON_REC
 259 #define CUBE_NEXT          BUTTON_RIGHT
 260 #define CUBE_PREV          BUTTON_LEFT
 261 #define CUBE_INC           BUTTON_UP
 262 #define CUBE_DEC           BUTTON_DOWN
 263 #define CUBE_MODE          BUTTON_REW
 264 #define CUBE_PAUSE         BUTTON_PLAY
 265 #define CUBE_HIGHSPEED     BUTTON_FFWD
 266
 267
 268 #else
 269 #error No keymap defined!
 270 #endif
 271
 272 #ifdef HAVE_TOUCHSCREEN
 273 #ifndef CUBE_QUIT
 274 #define CUBE_QUIT          BUTTON_TOPLEFT
 275 #endif
 276 #ifndef CUBE_NEXT
 277 #define CUBE_NEXT          BUTTON_MIDRIGHT
 278 #endif
 279 #ifndef CUBE_PREV
 280 #define CUBE_PREV          BUTTON_MIDLEFT
 281 #endif
 282 #ifndef CUBE_INC
 283 #define CUBE_INC           BUTTON_TOPMIDDLE
 284 #endif
 285 #ifndef CUBE_DEC
 286 #define CUBE_DEC           BUTTON_BOTTOMMIDDLE
 287 #endif
 288 #ifndef CUBE_MODE
 289 #define CUBE_MODE          BUTTON_TOPRIGHT
 290 #endif
 291 #ifndef CUBE_PAUSE
 292 #define CUBE_PAUSE         BUTTON_CENTER
 293 #endif
 294 #ifndef CUBE_HIGHSPEED
 295 #define CUBE_HIGHSPEED     BUTTON_BOTTOMRIGHT
 296 #endif
 297 #endif
 298
 299
 300 #ifdef HAVE_LCD_BITMAP
 301
 302 #define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
 303 static int x_off = LCD_WIDTH/2;
 304 static int y_off = LCD_HEIGHT/2;
 305
 306 #if LCD_DEPTH == 1
 307 #define USEGSLIB
 308 GREY_INFO_STRUCT
 309 struct my_lcd {
 310     void (*update)(void);
 311     void (*clear_display)(void);
 312     void (*drawline)(int x1, int y1, int x2, int y2);
 313     void (*putsxy)(int x, int y, const unsigned char *string);
 314 };
 315
 316 static struct my_lcd greyfuncs = {
 317     grey_update, grey_clear_display, grey_drawline, grey_putsxy
 318 };
 319 static struct my_lcd lcdfuncs; /* initialised at runtime */
 320 static struct my_lcd *mylcd = &greyfuncs;
 321
 322 #define MYLCD(fn) mylcd->fn
 323 #define MY_FILLTRIANGLE(x1, y1, x2, y2, x3, y3) grey_filltriangle(x1, y1, x2, y2, x3, y3)
 324 #define MY_SET_FOREGROUND(fg) grey_set_foreground(fg)
 325 #define MY_GET_FOREGROUND() grey_get_foreground()
 326
 327 #else
 328 #define MYLCD(fn) rb->lcd_ ## fn
 329 #define MY_FILLTRIANGLE(x1, y1, x2, y2, x3, y3) xlcd_filltriangle(x1, y1, x2, y2, x3, y3)
 330 #define MY_SET_FOREGROUND(fg) rb->lcd_set_foreground(fg)
 331 #define MY_GET_FOREGROUND() rb->lcd_get_foreground()
 332 #endif
 333
 334 #if CONFIG_LCD == LCD_SSD1815
 335 #define ASPECT 320 /* = 1.25 (fixed point 24.8) */
 336 #else
 337 #define ASPECT 256 /* = 1.00 */
 338 #endif
 339
 340 #else /* !LCD_BITMAP */
 341
 342 #define MYLCD(fn) pgfx_ ## fn
 343 #define DIST 9
 344 static int x_off = 10;
 345 static int y_off = 7;
 346 #define ASPECT 300 /* = 1.175 */
 347
 348 #endif /* !LCD_BITMAP */
 349
 350 struct point_3D {
 351     long x, y, z;
 352 };
 353
 354 struct point_2D {
 355     long x, y;
 356 };
 357
 358 struct line {
 359     int start, end;
 360 };
 361
 362 struct face {
 363     int corner[4];
 364     int line[4];
 365 };
 366
 367 /* initial, unrotated cube corners */
 368 static const struct point_3D sommet[8] =
 369 {
 370     {-DIST, -DIST, -DIST},
 371     { DIST, -DIST, -DIST},
 372     { DIST,  DIST, -DIST},
 373     {-DIST,  DIST, -DIST},
 374     {-DIST, -DIST,  DIST},
 375     { DIST, -DIST,  DIST},
 376     { DIST,  DIST,  DIST},
 377     {-DIST,  DIST,  DIST}
 378 };
 379
 380 /* The 12 lines forming the edges */
 381 static const struct line lines[12] =
 382 {
 383     {0, 1}, {1, 2}, {2, 3}, {3, 0},
 384     {4, 7}, {7, 6}, {6, 5}, {5, 4},
 385     {0, 4}, {1, 5}, {2, 6}, {3, 7}
 386 };
 387
 388 static bool lines_drawn[12];
 389
 390 /* The 6 faces of the cube; points are in clockwise order when viewed
 391    from the outside */
 392 static const struct face faces[6] =
 393 {
 394     {{0, 1, 2, 3}, {0, 1, 2, 3}},
 395     {{4, 7, 6, 5}, {4, 5, 6, 7}},
 396     {{0, 4, 5, 1}, {8, 7, 9, 0}},
 397     {{2, 6, 7, 3}, {10, 5, 11, 2}},
 398     {{0, 3, 7, 4}, {3, 11, 4, 8}},
 399     {{1, 5, 6, 2}, {9, 6, 10, 1}}
 400 };
 401
 402 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 403 static const unsigned face_colors[6] =
 404 {
 405 #ifdef HAVE_LCD_COLOR
 406     LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
 407     LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
 408 #elif defined(USEGSLIB)
 409 #ifdef MROBE_100
 410     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 411     GREY_DARKGRAY,  GREY_WHITE,     GREY_WHITE
 412 #else
 413     GREY_LIGHTGRAY, GREY_LIGHTGRAY, GREY_DARKGRAY,
 414     GREY_DARKGRAY,  GREY_BLACK,     GREY_BLACK
 415 #endif
 416 #else
 417     LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
 418     LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
 419 #endif
 420 };
 421 #endif
 422
 423 enum {
 424 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 425     SOLID,
 426 #endif
 427     HIDDEN_LINES,
 428     WIREFRAME,
 429     NUM_MODES
 430 };
 431
 432 static int mode = 0;
 433
 434 struct counter {
 435     const char *label;
 436     short speed;
 437     short angle;
 438 };
 439
 440 static struct counter axes[] = {
 441     {"x-axis", 1, 0},
 442     {"y-axis", 3, 0},
 443     {"z-axis", 2, 0}
 444 };
 445
 446 static struct point_3D point3D[8];
 447 static struct point_2D point2D[8];
 448 static long matrice[3][3];
 449
 450 static const int nb_points = 8;
 451 static long z_off = 600;
 452
 453 static void cube_rotate(int xa, int ya, int za)
 454 {
 455     int i;
 456     /* Just to prevent unnecessary lookups */
 457     long sxa, cxa, sya, cya, sza, cza;
 458
 459     sxa = fp14_sin(xa);
 460     cxa = fp14_cos(xa);
 461     sya = fp14_sin(ya);
 462     cya = fp14_cos(ya);
 463     sza = fp14_sin(za);
 464     cza = fp14_cos(za);
 465
 466     /* calculate overall translation matrix */
 467     matrice[0][0] = (cza * cya) >> 14;
 468     matrice[1][0] = (sza * cya) >> 14;
 469     matrice[2][0] = -sya;
 470
 471     matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
 472     matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
 473     matrice[2][1] = (sxa * cya) >> 14;
 474
 475     matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
 476     matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
 477     matrice[2][2] = (cxa * cya) >> 14;
 478
 479     /* apply translation matrix to all points */
 480     for (i = 0; i < nb_points; i++)
 481     {
 482         point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
 483                      + matrice[2][0] * sommet[i].z;
 484
 485         point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
 486                      + matrice[2][1] * sommet[i].z;
 487
 488         point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
 489                      + matrice[2][2] * sommet[i].z;
 490     }
 491 }
 492
 493 static void cube_viewport(void)
 494 {
 495     int i;
 496
 497     /* Do viewport transformation for all points */
 498     for (i = 0; i < nb_points; i++)
 499     {
 500 #if ASPECT != 256
 501         point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
 502                      + x_off;
 503 #else
 504         point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
 505                      + x_off;
 506 #endif
 507         point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
 508                      + y_off;
 509     }
 510 }
 511
 512 static void cube_draw(void)
 513 {
 514     int i, j, line;
 515 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 516     unsigned old_foreground;
 517 #endif
 518
 519     switch (mode)
 520     {
 521 #if LCD_DEPTH > 1 || defined(USEGSLIB)
 522       case SOLID:
 523
 524         old_foreground = MY_GET_FOREGROUND();
 525         for (i = 0; i < 6; i++)
 526         {
 527             /* backface culling; if the shape winds counter-clockwise, we are
 528              * looking at the backface, and the (simplified) cross product
 529              * is < 0. Do not draw it. */
 530             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 531                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 532                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 533                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 534                 continue;
 535
 536             MY_SET_FOREGROUND(face_colors[i]);
 537             MY_FILLTRIANGLE(point2D[faces[i].corner[0]].x,
 538                             point2D[faces[i].corner[0]].y,
 539                             point2D[faces[i].corner[1]].x,
 540                             point2D[faces[i].corner[1]].y,
 541                             point2D[faces[i].corner[2]].x,
 542                             point2D[faces[i].corner[2]].y);
 543             MY_FILLTRIANGLE(point2D[faces[i].corner[0]].x,
 544                             point2D[faces[i].corner[0]].y,
 545                             point2D[faces[i].corner[2]].x,
 546                             point2D[faces[i].corner[2]].y,
 547                             point2D[faces[i].corner[3]].x,
 548                             point2D[faces[i].corner[3]].y);
 549
 550         }
 551         MY_SET_FOREGROUND(old_foreground);
 552         break;
 553 #endif /* (LCD_DEPTH > 1) || GSLIB */
 554
 555       case HIDDEN_LINES:
 556
 557         rb->memset(lines_drawn, 0, sizeof(lines_drawn));
 558         for (i = 0; i < 6; i++)
 559         {
 560             /* backface culling; if the shape winds counter-clockwise, we are
 561              * looking at the backface, and the (simplified) cross product
 562              * is < 0. Do not draw it. */
 563             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 564                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 565                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 566                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 567                 continue;
 568
 569             for (j = 0; j < 4; j++)
 570             {
 571                 line = faces[i].line[j];
 572                 if (!lines_drawn[line])
 573                 {
 574                     lines_drawn[line] = true;
 575                     MYLCD(drawline)(point2D[lines[line].start].x,
 576                                     point2D[lines[line].start].y,
 577                                     point2D[lines[line].end].x,
 578                                     point2D[lines[line].end].y);
 579                 }
 580             }
 581         }
 582         break;
 583
 584       case WIREFRAME:
 585
 586         for (i = 0; i < 12; i++)
 587             MYLCD(drawline)(point2D[lines[i].start].x,
 588                             point2D[lines[i].start].y,
 589                             point2D[lines[i].end].x,
 590                             point2D[lines[i].end].y);
 591         break;
 592     }
 593 }
 594
 595 void cleanup(void *parameter)
 596 {
 597     (void)parameter;
 598
 599 #ifdef USEGSLIB
 600     grey_release();
 601 #elif defined HAVE_LCD_CHARCELLS
 602     pgfx_release();
 603 #endif
 604 }
 605
 606 enum plugin_status plugin_start(const void* parameter)
 607 {
 608     char buffer[30];
 609     int t_disp = 0;
 610 #ifdef USEGSLIB
 611     unsigned char *gbuf;
 612     size_t gbuf_size = 0;
 613     bool mode_switch = true;
 614 #endif
 615
 616     int button;
 617     int lastbutton = BUTTON_NONE;
 618     int curr = 0;
 619     bool highspeed = false;
 620     bool paused = false;
 621     bool redraw = true;
 622     bool exit = false;
 623
 624     (void)(parameter);
 625
 626 #ifdef HAVE_LCD_BITMAP
 627 #if defined(USEGSLIB)
 628     gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
 629     if (!grey_init(gbuf, gbuf_size, GREY_BUFFERED,
 630                    LCD_WIDTH, LCD_HEIGHT, NULL))
 631     {
 632         rb->splash(HZ, "Couldn't init greyscale display");
 633         return PLUGIN_ERROR;
 634     }
 635     /* init lcd_ function pointers */
 636     lcdfuncs.update =        rb->lcd_update;
 637     lcdfuncs.clear_display = rb->lcd_clear_display;
 638     lcdfuncs.drawline =      rb->lcd_drawline;
 639     lcdfuncs.putsxy =        rb->lcd_putsxy;
 640
 641 #ifdef MROBE_100
 642     grey_set_background(GREY_BLACK);
 643 #endif
 644
 645     grey_setfont(FONT_SYSFIXED);
 646 #endif
 647     rb->lcd_setfont(FONT_SYSFIXED);
 648 #else /* LCD_CHARCELLS */
 649     if (!pgfx_init(4, 2))
 650     {
 651         rb->splash(HZ*2, "Old LCD :(");
 652         return PLUGIN_OK;
 653     }
 654     pgfx_display(0, 0);
 655 #endif
 656
 657     while(!exit)
 658     {
 659         if (redraw)
 660         {
 661             MYLCD(clear_display)();
 662             cube_rotate(axes[0].angle, axes[1].angle, axes[2].angle);
 663             cube_viewport();
 664             cube_draw();
 665             redraw = false;
 666         }
 667
 668 #ifdef HAVE_LCD_BITMAP
 669         if (t_disp > 0)
 670         {
 671             t_disp--;
 672             rb->snprintf(buffer, sizeof(buffer), "%s: %d %s",
 673                          axes[curr].label,
 674                          paused ? axes[curr].angle : axes[curr].speed,
 675                          highspeed ? "(hs)" : "");
 676             MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
 677             if (t_disp == 0)
 678                 redraw = true;
 679         }
 680 #else
 681         if (t_disp > 0)
 682         {
 683             if (t_disp == DISP_TIME)
 684             {
 685                 rb->lcd_puts(5, 0, axes[curr].label);
 686                 rb->snprintf(buffer, sizeof(buffer), "%d %c",
 687                              paused ? axes[curr].angle : axes[curr].speed,
 688                              highspeed ? 'H' : ' ');
 689                 rb->lcd_puts(5, 1, buffer);
 690             }
 691             t_disp--;
 692             if (t_disp == 0)
 693             {
 694                 rb->lcd_clear_display();
 695                 pgfx_display(0, 0);
 696             }
 697         }
 698 #endif
 699 #ifdef USEGSLIB
 700         if (mode_switch)
 701         {
 702             grey_show(mode == SOLID);
 703             mode_switch = false;
 704         }
 705 #endif
 706         MYLCD(update)();
 707
 708         if (!paused)
 709         {
 710             int i;
 711
 712             for (i = 0; i < 3; i++)
 713             {
 714                 axes[i].angle += axes[i].speed;
 715                 if (axes[i].angle > 359)
 716                     axes[i].angle -= 360;
 717                 else if (axes[i].angle < 0)
 718                     axes[i].angle += 360;
 719             }
 720             redraw = true;
 721
 722             if (highspeed)
 723                 rb->yield();
 724             else
 725                 rb->sleep(HZ/25);
 726             button = rb->button_get(false);
 727         }
 728         else
 729         {
 730             button = rb->button_get_w_tmo(HZ/25);
 731         }
 732
 733         switch (button)
 734         {
 735             case CUBE_INC:
 736             case CUBE_INC|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 > 359)
 745                         axes[curr].angle -= 360;
 746                 }
 747                 t_disp = DISP_TIME;
 748                 redraw = true;
 749                 break;
 750
 751             case CUBE_DEC:
 752             case CUBE_DEC|BUTTON_REPEAT:
 753                 if (!paused)
 754                 {
 755                     if (axes[curr].speed > -10)
 756                         axes[curr].speed--;
 757                 }
 758                 else
 759                 {
 760                     if (--axes[curr].angle < 0)
 761                         axes[curr].angle += 360;
 762                 }
 763                 t_disp = DISP_TIME;
 764                 redraw = true;
 765                 break;
 766
 767             case CUBE_NEXT:
 768                 if (++curr > 2)
 769                     curr = 0;
 770                 t_disp = DISP_TIME;
 771                 break;
 772
 773             case CUBE_PREV:
 774                 if (--curr < 0)
 775                     curr = 2;
 776                 t_disp = DISP_TIME;
 777                 break;
 778
 779             case CUBE_MODE:
 780 #ifdef CUBE_MODE_PRE
 781                 if (lastbutton != CUBE_MODE_PRE)
 782                     break;
 783 #endif
 784                 if (++mode >= NUM_MODES)
 785                     mode = 0;
 786 #ifdef USEGSLIB
 787                 mylcd = (mode == SOLID) ? &greyfuncs : &lcdfuncs;
 788                 mode_switch = true;
 789 #endif
 790                 redraw = true;
 791                 break;
 792
 793             case CUBE_PAUSE:
 794 #ifdef CUBE_PAUSE_PRE
 795                 if (lastbutton != CUBE_PAUSE_PRE)
 796                     break;
 797 #endif
 798                 paused = !paused;
 799                 break;
 800
 801             case CUBE_HIGHSPEED:
 802 #ifdef CUBE_HIGHSPEED_PRE
 803                 if (lastbutton != CUBE_HIGHSPEED_PRE)
 804                     break;
 805 #endif
 806                 highspeed = !highspeed;
 807                 t_disp = DISP_TIME;
 808                 break;
 809
 810 #ifdef CUBE_RC_QUIT
 811             case CUBE_RC_QUIT:
 812 #endif
 813             case CUBE_QUIT:
 814                 exit = true;
 815                 break;
 816
 817             default:
 818                 if (rb->default_event_handler_ex(button, cleanup, NULL)
 819                     == SYS_USB_CONNECTED)
 820                     return PLUGIN_USB_CONNECTED;
 821                 break;
 822         }
 823         if (button != BUTTON_NONE)
 824             lastbutton = button;
 825     }
 826
 827 #ifdef USEGSLIB
 828     grey_release();
 829 #elif defined(HAVE_LCD_CHARCELLS)
 830     pgfx_release();
 831 #endif
 832     return PLUGIN_OK;
 833 }
 834
 835