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 * All files in this archive are subject to the GNU General Public License.
  15 * See the file COPYING in the source tree root for full license agreement.
  16 *
  17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18 * KIND, either express or implied.
  19 *
  20 ***************************************************************************/
  21 #include "plugin.h"
  22 #include "gray.h"
  23 #include "playergfx.h"
  24 #include "xlcd.h"
  25 #include "fixedpoint.h"
  26
  27 PLUGIN_HEADER
  28
  29 /* Loops that the values are displayed */
  30 #define DISP_TIME 30
  31
  32 /* variable button definitions */
  33 #if CONFIG_KEYPAD == RECORDER_PAD
  34 #define CUBE_QUIT          BUTTON_OFF
  35 #define CUBE_X_INC         BUTTON_RIGHT
  36 #define CUBE_X_DEC         BUTTON_LEFT
  37 #define CUBE_Y_INC         BUTTON_UP
  38 #define CUBE_Y_DEC         BUTTON_DOWN
  39 #define CUBE_Z_INC         BUTTON_F2
  40 #define CUBE_Z_DEC         BUTTON_F1
  41 #define CUBE_MODE          BUTTON_F3
  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_X_INC         BUTTON_RIGHT
  48 #define CUBE_X_DEC         BUTTON_LEFT
  49 #define CUBE_Y_INC         BUTTON_UP
  50 #define CUBE_Y_DEC         BUTTON_DOWN
  51 #define CUBE_Z_INC         BUTTON_F2
  52 #define CUBE_Z_DEC         BUTTON_F1
  53 #define CUBE_MODE          BUTTON_F3
  54 #define CUBE_PAUSE         BUTTON_SELECT
  55 #define CUBE_HIGHSPEED     BUTTON_ON
  56
  57 #elif CONFIG_KEYPAD == PLAYER_PAD
  58 #define CUBE_QUIT          BUTTON_STOP
  59 #define CUBE_X_INC         BUTTON_RIGHT
  60 #define CUBE_X_DEC         BUTTON_LEFT
  61 #define CUBE_Y_INC         (BUTTON_ON | BUTTON_RIGHT)
  62 #define CUBE_Y_DEC         (BUTTON_ON | BUTTON_LEFT)
  63 #define CUBE_Z_INC         (BUTTON_MENU | BUTTON_RIGHT)
  64 #define CUBE_Z_DEC         (BUTTON_MENU | BUTTON_LEFT)
  65 #define CUBE_MODE_PRE      BUTTON_MENU
  66 #define CUBE_MODE          (BUTTON_MENU | BUTTON_REL)
  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_X_INC         BUTTON_RIGHT
  74 #define CUBE_X_DEC         BUTTON_LEFT
  75 #define CUBE_Y_INC         BUTTON_UP
  76 #define CUBE_Y_DEC         BUTTON_DOWN
  77 #define CUBE_Z_INC         (BUTTON_MENU | BUTTON_UP)
  78 #define CUBE_Z_DEC         (BUTTON_MENU | BUTTON_DOWN)
  79 #define CUBE_MODE_PRE      BUTTON_MENU
  80 #define CUBE_MODE          (BUTTON_MENU | BUTTON_REL)
  81 #define CUBE_PAUSE         (BUTTON_MENU | BUTTON_LEFT)
  82 #define CUBE_HIGHSPEED     (BUTTON_MENU | BUTTON_RIGHT)
  83
  84 #elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
  85       (CONFIG_KEYPAD == IRIVER_H300_PAD)
  86 #define CUBE_QUIT          BUTTON_OFF
  87 #define CUBE_X_INC         BUTTON_RIGHT
  88 #define CUBE_X_DEC         BUTTON_LEFT
  89 #define CUBE_Y_INC         BUTTON_UP
  90 #define CUBE_Y_DEC         BUTTON_DOWN
  91 #define CUBE_Z_INC         (BUTTON_ON | BUTTON_UP)
  92 #define CUBE_Z_DEC         (BUTTON_ON | BUTTON_DOWN)
  93 #define CUBE_MODE          BUTTON_MODE
  94 #define CUBE_PAUSE_PRE     BUTTON_ON
  95 #define CUBE_PAUSE         (BUTTON_ON | BUTTON_REL)
  96 #define CUBE_HIGHSPEED     BUTTON_SELECT
  97
  98 #define CUBE_RC_QUIT       BUTTON_RC_STOP
  99
 100 #elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
 101       (CONFIG_KEYPAD == IPOD_3G_PAD) || \
 102       (CONFIG_KEYPAD == IPOD_1G2G_PAD)
 103 #define CUBE_QUIT          BUTTON_MENU
 104 #define CUBE_X_INC         BUTTON_RIGHT
 105 #define CUBE_X_DEC         BUTTON_LEFT
 106 #define CUBE_Y_INC         BUTTON_SCROLL_FWD
 107 #define CUBE_Y_DEC         BUTTON_SCROLL_BACK
 108 #define CUBE_Z_INC         (BUTTON_SELECT | BUTTON_RIGHT)
 109 #define CUBE_Z_DEC         (BUTTON_SELECT | BUTTON_LEFT)
 110 #define CUBE_MODE          (BUTTON_SELECT | BUTTON_MENU)
 111 #define CUBE_PAUSE_PRE     BUTTON_PLAY
 112 #define CUBE_PAUSE         (BUTTON_PLAY | BUTTON_REL)
 113 #define CUBE_HIGHSPEED     (BUTTON_SELECT | BUTTON_PLAY)
 114
 115 #elif CONFIG_KEYPAD == IRIVER_IFP7XX_PAD
 116 #define CUBE_QUIT          BUTTON_PLAY
 117 #define CUBE_X_INC         BUTTON_RIGHT
 118 #define CUBE_X_DEC         BUTTON_LEFT
 119 #define CUBE_Y_INC         BUTTON_UP
 120 #define CUBE_Y_DEC         BUTTON_DOWN
 121 #define CUBE_Z_INC         BUTTON_MODE
 122 #define CUBE_Z_DEC         BUTTON_EQ
 123 #define CUBE_MODE          (BUTTON_SELECT | BUTTON_REPEAT)
 124 #define CUBE_PAUSE         (BUTTON_SELECT | BUTTON_REL)
 125 #define CUBE_HIGHSPEED     (BUTTON_MODE | BUTTON_EQ) /* TODO: this is impossible */
 126
 127 #elif (CONFIG_KEYPAD == IAUDIO_X5M5_PAD)
 128 #define CUBE_QUIT          BUTTON_POWER
 129 #define CUBE_X_INC         BUTTON_LEFT
 130 #define CUBE_X_DEC         BUTTON_RIGHT
 131 #define CUBE_Y_INC         BUTTON_UP
 132 #define CUBE_Y_DEC         BUTTON_DOWN
 133 #define CUBE_Z_INC         (BUTTON_PLAY | BUTTON_UP)
 134 #define CUBE_Z_DEC         (BUTTON_PLAY | BUTTON_DOWN)
 135 #define CUBE_MODE          BUTTON_SELECT
 136 #define CUBE_PAUSE_PRE     BUTTON_PLAY
 137 #define CUBE_PAUSE         (BUTTON_PLAY | BUTTON_REL)
 138 #define CUBE_HIGHSPEED     (BUTTON_REC | BUTTON_REL)
 139
 140 #elif (CONFIG_KEYPAD == GIGABEAT_PAD)
 141 #define CUBE_QUIT          BUTTON_POWER
 142 #define CUBE_X_INC         BUTTON_LEFT
 143 #define CUBE_X_DEC         BUTTON_RIGHT
 144 #define CUBE_Y_INC         BUTTON_UP
 145 #define CUBE_Y_DEC         BUTTON_DOWN
 146 #define CUBE_Z_INC         BUTTON_VOL_UP
 147 #define CUBE_Z_DEC         BUTTON_VOL_DOWN
 148 #define CUBE_MODE          BUTTON_MENU
 149 #define CUBE_PAUSE         BUTTON_SELECT
 150 #define CUBE_HIGHSPEED     BUTTON_A
 151
 152 #elif (CONFIG_KEYPAD == SANSA_E200_PAD)
 153 #define CUBE_QUIT          BUTTON_POWER
 154 #define CUBE_X_INC         BUTTON_LEFT
 155 #define CUBE_X_DEC         BUTTON_RIGHT
 156 #define CUBE_Y_INC         BUTTON_SCROLL_UP
 157 #define CUBE_Y_DEC         BUTTON_SCROLL_DOWN
 158 #define CUBE_Z_INC         BUTTON_UP
 159 #define CUBE_Z_DEC         BUTTON_DOWN
 160 #define CUBE_MODE_PRE      BUTTON_SELECT
 161 #define CUBE_MODE          (BUTTON_SELECT|BUTTON_REPEAT)
 162 #define CUBE_PAUSE_PRE     BUTTON_SELECT
 163 #define CUBE_PAUSE         (BUTTON_SELECT|BUTTON_REL)
 164 #define CUBE_HIGHSPEED     BUTTON_REC
 165
 166 #elif (CONFIG_KEYPAD == SANSA_C200_PAD)
 167 #define CUBE_QUIT          BUTTON_POWER
 168 #define CUBE_X_INC         BUTTON_LEFT
 169 #define CUBE_X_DEC         BUTTON_RIGHT
 170 #define CUBE_Y_INC         BUTTON_VOL_UP
 171 #define CUBE_Y_DEC         BUTTON_VOL_DOWN
 172 #define CUBE_Z_INC         BUTTON_UP
 173 #define CUBE_Z_DEC         BUTTON_DOWN
 174 #define CUBE_MODE_PRE      BUTTON_SELECT
 175 #define CUBE_MODE          (BUTTON_SELECT|BUTTON_REPEAT)
 176 #define CUBE_PAUSE_PRE     BUTTON_SELECT
 177 #define CUBE_PAUSE         (BUTTON_SELECT|BUTTON_REL)
 178 #define CUBE_HIGHSPEED     BUTTON_REC
 179
 180
 181 #elif (CONFIG_KEYPAD == IRIVER_H10_PAD)
 182 #define CUBE_QUIT          BUTTON_POWER
 183 #define CUBE_X_INC         BUTTON_LEFT
 184 #define CUBE_X_DEC         BUTTON_RIGHT
 185 #define CUBE_Y_INC         BUTTON_SCROLL_UP
 186 #define CUBE_Y_DEC         BUTTON_SCROLL_DOWN
 187 #define CUBE_Z_INC         (BUTTON_PLAY | BUTTON_SCROLL_UP)
 188 #define CUBE_Z_DEC         (BUTTON_PLAY | BUTTON_SCROLL_DOWN)
 189 #define CUBE_MODE          BUTTON_REW
 190 #define CUBE_PAUSE_PRE     BUTTON_PLAY
 191 #define CUBE_PAUSE         (BUTTON_PLAY | BUTTON_REL)
 192 #define CUBE_HIGHSPEED     (BUTTON_FF | BUTTON_REL)
 193
 194 #elif CONFIG_KEYPAD == MROBE500_PAD
 195 #define CUBE_QUIT          BUTTON_POWER
 196 #define CUBE_X_INC         BUTTON_LEFT
 197 #define CUBE_X_DEC         BUTTON_RIGHT
 198 #define CUBE_Y_INC         BUTTON_RC_PLAY
 199 #define CUBE_Y_DEC         BUTTON_RC_DOWN
 200 #define CUBE_Z_INC         BUTTON_RC_VOL_UP
 201 #define CUBE_Z_DEC         BUTTON_RC_VOL_DOWN
 202 #define CUBE_MODE          BUTTON_RC_MODE
 203 #define CUBE_PAUSE_PRE     BUTTON_RC_HEART
 204 #define CUBE_PAUSE         (BUTTON_RC_HEART | BUTTON_REL)
 205 #define CUBE_HIGHSPEED     BUTTON_RC_HEART
 206
 207 #endif
 208
 209 #ifdef HAVE_LCD_BITMAP
 210
 211 #define DIST (10 * MIN(LCD_HEIGHT, LCD_WIDTH) / 16)
 212 static int x_off = LCD_WIDTH/2;
 213 static int y_off = LCD_HEIGHT/2;
 214
 215 #if LCD_DEPTH == 1
 216 #define USE_GSLIB
 217 struct my_lcd {
 218     void (*update)(void);
 219     void (*clear_display)(void);
 220     void (*drawline)(int x1, int y1, int x2, int y2);
 221     void (*putsxy)(int x, int y, const unsigned char *string);
 222 };
 223
 224 static struct my_lcd grayfuncs = {
 225     gray_update, gray_clear_display, gray_drawline, gray_putsxy
 226 };
 227 static struct my_lcd lcdfuncs; /* initialised at runtime */
 228 static struct my_lcd *mylcd = &grayfuncs;
 229
 230 #define MYLCD(fn) mylcd->fn
 231 #define MY_FILLTRIANGLE(x1, y1, x2, y2, x3, y3) gray_filltriangle(x1, y1, x2, y2, x3, y3)
 232 #define MY_SET_FOREGROUND(fg) gray_set_foreground(fg)
 233 #define MY_GET_FOREGROUND() gray_get_foreground()
 234
 235 #else
 236 #define MYLCD(fn) rb->lcd_ ## fn
 237 #define MY_FILLTRIANGLE(x1, y1, x2, y2, x3, y3) xlcd_filltriangle(x1, y1, x2, y2, x3, y3)
 238 #define MY_SET_FOREGROUND(fg) rb->lcd_set_foreground(fg)
 239 #define MY_GET_FOREGROUND() rb->lcd_get_foreground()
 240 #endif
 241
 242 #if CONFIG_LCD == LCD_SSD1815
 243 #define ASPECT 320 /* = 1.25 (fixed point 24.8) */
 244 #else
 245 #define ASPECT 256 /* = 1.00 */
 246 #endif
 247
 248 #else /* !LCD_BITMAP */
 249
 250 #define MYLCD(fn) pgfx_ ## fn
 251 #define DIST 9
 252 static int x_off = 10;
 253 static int y_off = 7;
 254 #define ASPECT 300 /* = 1.175 */
 255
 256 #endif /* !LCD_BITMAP */
 257
 258 struct point_3D {
 259     long x, y, z;
 260 };
 261
 262 struct point_2D {
 263     long x, y;
 264 };
 265
 266 struct line {
 267     int start, end;
 268 };
 269
 270 struct face {
 271     int corner[4];
 272     int line[4];
 273 };
 274
 275 /* initial, unrotated cube corners */
 276 static const struct point_3D sommet[8] =
 277 {
 278     {-DIST, -DIST, -DIST},
 279     { DIST, -DIST, -DIST},
 280     { DIST,  DIST, -DIST},
 281     {-DIST,  DIST, -DIST},
 282     {-DIST, -DIST,  DIST},
 283     { DIST, -DIST,  DIST},
 284     { DIST,  DIST,  DIST},
 285     {-DIST,  DIST,  DIST}
 286 };
 287
 288 /* The 12 lines forming the edges */
 289 static const struct line lines[12] =
 290 {
 291     {0, 1}, {1, 2}, {2, 3}, {3, 0},
 292     {4, 7}, {7, 6}, {6, 5}, {5, 4},
 293     {0, 4}, {1, 5}, {2, 6}, {3, 7}
 294 };
 295
 296 static bool lines_drawn[12];
 297
 298 /* The 6 faces of the cube; points are in clockwise order when viewed
 299    from the outside */
 300 static const struct face faces[6] =
 301 {
 302     {{0, 1, 2, 3}, {0, 1, 2, 3}},
 303     {{4, 7, 6, 5}, {4, 5, 6, 7}},
 304     {{0, 4, 5, 1}, {8, 7, 9, 0}},
 305     {{2, 6, 7, 3}, {10, 5, 11, 2}},
 306     {{0, 3, 7, 4}, {3, 11, 4, 8}},
 307     {{1, 5, 6, 2}, {9, 6, 10, 1}}
 308 };
 309
 310 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 311 static const unsigned face_colors[6] =
 312 {
 313 #ifdef HAVE_LCD_COLOR
 314     LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(255, 0, 0), LCD_RGBPACK(0, 255, 0),
 315     LCD_RGBPACK(0, 255, 0), LCD_RGBPACK(0, 0, 255), LCD_RGBPACK(0, 0, 255)
 316 #elif defined(USE_GSLIB)
 317     GRAY_LIGHTGRAY, GRAY_LIGHTGRAY, GRAY_DARKGRAY,
 318     GRAY_DARKGRAY,  GRAY_BLACK,     GRAY_BLACK
 319 #else
 320     LCD_LIGHTGRAY, LCD_LIGHTGRAY, LCD_DARKGRAY,
 321     LCD_DARKGRAY,  LCD_BLACK,     LCD_BLACK
 322 #endif
 323 };
 324 #endif
 325
 326 enum {
 327 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 328     SOLID,
 329 #endif
 330     HIDDEN_LINES,
 331     WIREFRAME,
 332     NUM_MODES
 333 };
 334
 335 static int mode = 0;
 336
 337 static struct point_3D point3D[8];
 338 static struct point_2D point2D[8];
 339 static long matrice[3][3];
 340
 341 static const int nb_points = 8;
 342 static long z_off = 600;
 343
 344 static struct plugin_api* rb;
 345
 346 static void cube_rotate(int xa, int ya, int za)
 347 {
 348     int i;
 349     /* Just to prevent unnecessary lookups */
 350     long sxa, cxa, sya, cya, sza, cza;
 351
 352     sxa = sin_int(xa);
 353     cxa = cos_int(xa);
 354     sya = sin_int(ya);
 355     cya = cos_int(ya);
 356     sza = sin_int(za);
 357     cza = cos_int(za);
 358
 359     /* calculate overall translation matrix */
 360     matrice[0][0] = (cza * cya) >> 14;
 361     matrice[1][0] = (sza * cya) >> 14;
 362     matrice[2][0] = -sya;
 363
 364     matrice[0][1] = (((cza * sya) >> 14) * sxa - sza * cxa) >> 14;
 365     matrice[1][1] = (((sza * sya) >> 14) * sxa + cxa * cza) >> 14;
 366     matrice[2][1] = (sxa * cya) >> 14;
 367
 368     matrice[0][2] = (((cza * sya) >> 14) * cxa + sza * sxa) >> 14;
 369     matrice[1][2] = (((sza * sya) >> 14) * cxa - cza * sxa) >> 14;
 370     matrice[2][2] = (cxa * cya) >> 14;
 371
 372     /* apply translation matrix to all points */
 373     for (i = 0; i < nb_points; i++)
 374     {
 375         point3D[i].x = matrice[0][0] * sommet[i].x + matrice[1][0] * sommet[i].y
 376                      + matrice[2][0] * sommet[i].z;
 377
 378         point3D[i].y = matrice[0][1] * sommet[i].x + matrice[1][1] * sommet[i].y
 379                      + matrice[2][1] * sommet[i].z;
 380
 381         point3D[i].z = matrice[0][2] * sommet[i].x + matrice[1][2] * sommet[i].y
 382                      + matrice[2][2] * sommet[i].z;
 383     }
 384 }
 385
 386 static void cube_viewport(void)
 387 {
 388     int i;
 389
 390     /* Do viewport transformation for all points */
 391     for (i = 0; i < nb_points; i++)
 392     {
 393 #if ASPECT != 256
 394         point2D[i].x = (point3D[i].x * ASPECT) / (point3D[i].z + (z_off << 14))
 395                      + x_off;
 396 #else
 397         point2D[i].x = (point3D[i].x << 8) / (point3D[i].z + (z_off << 14))
 398                      + x_off;
 399 #endif
 400         point2D[i].y = (point3D[i].y << 8) / (point3D[i].z + (z_off << 14))
 401                      + y_off;
 402     }
 403 }
 404
 405 static void cube_draw(void)
 406 {
 407     int i, j, line;
 408 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 409     unsigned old_foreground;
 410 #endif
 411
 412     switch (mode)
 413     {
 414 #if LCD_DEPTH > 1 || defined(USE_GSLIB)
 415       case SOLID:
 416
 417         old_foreground = MY_GET_FOREGROUND();
 418         for (i = 0; i < 6; i++)
 419         {
 420             /* backface culling; if the shape winds counter-clockwise, we are
 421              * looking at the backface, and the (simplified) cross product
 422              * is < 0. Do not draw it. */
 423             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 424                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 425                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 426                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 427                 continue;
 428
 429             MY_SET_FOREGROUND(face_colors[i]);
 430             MY_FILLTRIANGLE(point2D[faces[i].corner[0]].x,
 431                             point2D[faces[i].corner[0]].y,
 432                             point2D[faces[i].corner[1]].x,
 433                             point2D[faces[i].corner[1]].y,
 434                             point2D[faces[i].corner[2]].x,
 435                             point2D[faces[i].corner[2]].y);
 436             MY_FILLTRIANGLE(point2D[faces[i].corner[0]].x,
 437                             point2D[faces[i].corner[0]].y,
 438                             point2D[faces[i].corner[2]].x,
 439                             point2D[faces[i].corner[2]].y,
 440                             point2D[faces[i].corner[3]].x,
 441                             point2D[faces[i].corner[3]].y);
 442
 443         }
 444         MY_SET_FOREGROUND(old_foreground);
 445         break;
 446 #endif /* (LCD_DEPTH > 1) || GSLIB */
 447
 448       case HIDDEN_LINES:
 449
 450         rb->memset(lines_drawn, 0, sizeof(lines_drawn));
 451         for (i = 0; i < 6; i++)
 452         {
 453             /* backface culling; if the shape winds counter-clockwise, we are
 454              * looking at the backface, and the (simplified) cross product
 455              * is < 0. Do not draw it. */
 456             if (0 >= (point2D[faces[i].corner[1]].x - point2D[faces[i].corner[0]].x)
 457                    * (point2D[faces[i].corner[2]].y - point2D[faces[i].corner[1]].y)
 458                    - (point2D[faces[i].corner[1]].y - point2D[faces[i].corner[0]].y)
 459                    * (point2D[faces[i].corner[2]].x - point2D[faces[i].corner[1]].x))
 460                 continue;
 461
 462             for (j = 0; j < 4; j++)
 463             {
 464                 line = faces[i].line[j];
 465                 if (!lines_drawn[line])
 466                 {
 467                     lines_drawn[line] = true;
 468                     MYLCD(drawline)(point2D[lines[line].start].x,
 469                                     point2D[lines[line].start].y,
 470                                     point2D[lines[line].end].x,
 471                                     point2D[lines[line].end].y);
 472                 }
 473             }
 474         }
 475         break;
 476
 477       case WIREFRAME:
 478
 479         for (i = 0; i < 12; i++)
 480             MYLCD(drawline)(point2D[lines[i].start].x,
 481                             point2D[lines[i].start].y,
 482                             point2D[lines[i].end].x,
 483                             point2D[lines[i].end].y);
 484         break;
 485     }
 486 }
 487
 488 void cleanup(void *parameter)
 489 {
 490     (void)parameter;
 491
 492 #ifdef USE_GSLIB
 493     gray_release();
 494 #elif defined HAVE_LCD_CHARCELLS
 495     pgfx_release();
 496 #endif
 497 }
 498
 499 enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
 500 {
 501     char buffer[30];
 502     int t_disp = 0;
 503 #ifdef USE_GSLIB
 504     unsigned char *gbuf;
 505     size_t gbuf_size = 0;
 506     bool mode_switch = true;
 507 #endif
 508
 509     int button;
 510     int lastbutton = BUTTON_NONE;
 511     int xa = 0;
 512     int ya = 0;
 513     int za = 0;
 514     int xs = 1;
 515     int ys = 3;
 516     int zs = 1;
 517     bool highspeed = false;
 518     bool paused = false;
 519     bool redraw = true;
 520     bool exit = false;
 521
 522     (void)(parameter);
 523     rb = api;
 524
 525 #ifdef HAVE_LCD_BITMAP
 526 #if LCD_DEPTH > 1
 527     xlcd_init(rb);
 528 #elif defined(USE_GSLIB)
 529     gbuf = (unsigned char *)rb->plugin_get_buffer(&gbuf_size);
 530     if (gray_init(rb, gbuf, gbuf_size, true, LCD_WIDTH, LCD_HEIGHT, 3, 0, NULL)
 531         != 3)
 532     {
 533         rb->splash(HZ, "Couldn't get grayscale buffer");
 534         return PLUGIN_ERROR;
 535     }
 536     /* init lcd_ function pointers */
 537     lcdfuncs.update =        rb->lcd_update;
 538     lcdfuncs.clear_display = rb->lcd_clear_display;
 539     lcdfuncs.drawline =      rb->lcd_drawline;
 540     lcdfuncs.putsxy =        rb->lcd_putsxy;
 541
 542     gray_setfont(FONT_SYSFIXED);
 543 #endif
 544     rb->lcd_setfont(FONT_SYSFIXED);
 545 #else /* LCD_CHARCELLS */
 546     if (!pgfx_init(rb, 4, 2))
 547     {
 548         rb->splash(HZ*2, "Old LCD :(");
 549         return PLUGIN_OK;
 550     }
 551     pgfx_display(3, 0);
 552 #endif
 553
 554     while(!exit)
 555     {
 556         if (highspeed)
 557             rb->yield();
 558         else
 559             rb->sleep(4);
 560
 561         if (redraw)
 562         {
 563             MYLCD(clear_display)();
 564             cube_rotate(xa, ya, za);
 565             cube_viewport();
 566             cube_draw();
 567             redraw = false;
 568         }
 569
 570 #ifdef HAVE_LCD_BITMAP
 571         if (t_disp > 0)
 572         {
 573             t_disp--;
 574             rb->snprintf(buffer, sizeof(buffer), "x:%d y:%d z:%d h:%d",
 575                          xs, ys, zs, highspeed);
 576             MYLCD(putsxy)(0, LCD_HEIGHT-8, buffer);
 577             if (t_disp == 0)
 578                 redraw = true;
 579         }
 580 #else
 581         if (t_disp > 0)
 582         {
 583             if (t_disp == DISP_TIME)
 584             {
 585                 rb->snprintf(buffer, sizeof(buffer), "x%d", xs);
 586                 rb->lcd_puts(0, 0, buffer);
 587                 rb->snprintf(buffer, sizeof(buffer), "y%d", ys);
 588                 rb->lcd_puts(0, 1, buffer);
 589                 pgfx_display(3, 0);
 590                 rb->snprintf(buffer, sizeof(buffer), "z%d", zs);
 591                 rb->lcd_puts(8, 0, buffer);
 592                 rb->snprintf(buffer, sizeof(buffer), "h%d", highspeed);
 593                 rb->lcd_puts(8, 1, buffer);
 594             }
 595             t_disp--;
 596             if (t_disp == 0)
 597             {
 598                 rb->lcd_clear_display();
 599                 pgfx_display(3, 0);
 600             }
 601         }
 602 #endif
 603 #ifdef USE_GSLIB
 604         if (mode_switch)
 605         {
 606             gray_show(mode == SOLID);
 607             mode_switch = false;
 608         }
 609 #endif
 610         MYLCD(update)();
 611
 612         if (!paused)
 613         {
 614             xa += xs;
 615             if (xa > 359)
 616                 xa -= 360;
 617             else if (xa < 0)
 618                 xa += 360;
 619
 620             ya += ys;
 621             if (ya > 359)
 622                 ya -= 360;
 623             else if (ya < 0)
 624                 ya += 360;
 625
 626             za += zs;
 627             if (za > 359)
 628                 za -= 360;
 629             else if (za < 0)
 630                 za += 360;
 631             redraw = true;
 632         }
 633
 634         button = rb->button_get(false);
 635         switch (button)
 636         {
 637             case CUBE_X_INC:
 638             case (CUBE_X_INC|BUTTON_REPEAT):
 639                 if( !paused )
 640                 {
 641                     if( xs < 10)
 642                     xs++;
 643                 }
 644                 else
 645                 {
 646                     xa++;
 647                     if( xa > 359 )
 648                         xa -= 360;
 649                 }
 650                 t_disp = DISP_TIME;
 651                 redraw = true;
 652                 break;
 653
 654             case CUBE_X_DEC:
 655             case (CUBE_X_DEC|BUTTON_REPEAT):
 656                 if( !paused )
 657                 {
 658                 if (xs > -10)
 659                     xs--;
 660                 }
 661                 else
 662                 {
 663                     xa--;
 664                     if( xa < 0 )
 665                         xa += 360;
 666                 }
 667                 t_disp = DISP_TIME;
 668                 redraw = true;
 669                 break;
 670
 671             case CUBE_Y_INC:
 672             case (CUBE_Y_INC|BUTTON_REPEAT):
 673                 if( !paused )
 674                 {
 675                 if (ys < 10)
 676                     ys++;
 677                 }
 678                 else
 679                 {
 680                     ya++;
 681                     if( ya > 359 )
 682                         ya -= 360;
 683                 }
 684                 t_disp = DISP_TIME;
 685                 redraw = true;
 686                 break;
 687
 688             case CUBE_Y_DEC:
 689             case (CUBE_Y_DEC|BUTTON_REPEAT):
 690                 if( !paused )
 691                 {
 692                 if (ys > -10)
 693                     ys--;
 694                 }
 695                 else
 696                 {
 697                     ya--;
 698                     if( ya < 0 )
 699                         ya += 360;
 700                 }
 701                 t_disp = DISP_TIME;
 702                 redraw = true;
 703                 break;
 704
 705             case CUBE_Z_INC:
 706             case (CUBE_Z_INC|BUTTON_REPEAT):
 707                 if( !paused )
 708                 {
 709                 if (zs < 10)
 710                     zs++;
 711                 }
 712                 else
 713                 {
 714                     za++;
 715                     if( za > 359 )
 716                         za -= 360;
 717                 }
 718                 t_disp = DISP_TIME;
 719                 redraw = true;
 720                 break;
 721
 722             case CUBE_Z_DEC:
 723             case (CUBE_Z_DEC|BUTTON_REPEAT):
 724                 if( !paused )
 725                 {
 726                 if (zs > -10)
 727                     zs--;
 728                 }
 729                 else
 730                 {
 731                     za--;
 732                     if( za < 0 )
 733                         za += 360;
 734                 }
 735                 t_disp = DISP_TIME;
 736                 redraw = true;
 737                 break;
 738
 739             case CUBE_MODE:
 740 #ifdef CUBE_MODE_PRE
 741                 if (lastbutton != CUBE_MODE_PRE)
 742                     break;
 743 #endif
 744                 if (++mode >= NUM_MODES)
 745                     mode = 0;
 746 #ifdef USE_GSLIB
 747                 mylcd = (mode == SOLID) ? &grayfuncs : &lcdfuncs;
 748                 mode_switch = true;
 749 #endif
 750                 redraw = true;
 751                 break;
 752
 753             case CUBE_PAUSE:
 754 #ifdef CUBE_PAUSE_PRE
 755                 if (lastbutton != CUBE_PAUSE_PRE)
 756                     break;
 757 #endif
 758                 paused = !paused;
 759                 break;
 760
 761             case CUBE_HIGHSPEED:
 762 #ifdef CUBE_HIGHSPEED_PRE
 763                 if (lastbutton != CUBE_HIGHSPEED_PRE)
 764                     break;
 765 #endif
 766                 highspeed = !highspeed;
 767                 t_disp = DISP_TIME;
 768                 break;
 769
 770 #ifdef CUBE_RC_QUIT
 771             case CUBE_RC_QUIT:
 772 #endif
 773             case CUBE_QUIT:
 774                 exit = true;
 775                 break;
 776
 777             default:
 778                 if (rb->default_event_handler_ex(button, cleanup, NULL)
 779                     == SYS_USB_CONNECTED)
 780                     return PLUGIN_USB_CONNECTED;
 781                 break;
 782         }
 783         if (button != BUTTON_NONE)
 784             lastbutton = button;
 785     }
 786
 787 #ifdef USE_GSLIB
 788     gray_release();
 789 #elif defined(HAVE_LCD_CHARCELLS)
 790     pgfx_release();
 791 #endif
 792     return PLUGIN_OK;
 793 }
 794